CN106402341A - High-speed gearbox matched with high-speed fan for use - Google Patents
High-speed gearbox matched with high-speed fan for use Download PDFInfo
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- CN106402341A CN106402341A CN201610896257.9A CN201610896257A CN106402341A CN 106402341 A CN106402341 A CN 106402341A CN 201610896257 A CN201610896257 A CN 201610896257A CN 106402341 A CN106402341 A CN 106402341A
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- case body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/34—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in more than one step
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Gears, Cams (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a high-speed gearbox matched with a high-speed fan for use. The high-speed gearbox comprises a box body, a low-speed shaft, a high-speed shaft, a low-speed gear and a high-speed gear. The high-speed gear and the low-speed gear are in engaging transmission through a single helical gear. The low-speed gear is mounted on the low-speed shaft. The high-speed gear is mounted on the high-speed shaft. The high-speed shaft and the low-speed shaft are mounted on a bearing bush of the box body. The high-speed gear and the low-speed gear are engaged mutually. Thrust plates are arranged on the two sides of the high-speed gear. The low-speed gear is clamped between the thrust plates when the two thrust plates operate. A lubricating system of the gearbox adopts a main oil pump and an auxiliary oil pump which are used in a matched mode, the lubricating effect and safety operation of the system are ensured, the gears in the gearbox are of a single helical gear structure, the thrust plate structures are arranged on the two sides of the high-speed shaft so to transfer loads and bearing external axial force, and force on the high-speed shaft of an impeller can be transferred to the low-speed shaft; and the structure is low in noise, and transmission is stable .
Description
Technical field
The present invention relates to a kind of high-speed gear box, and in particular to a kind of high-speed fan supporting use high-speed gear box, belongs to tooth
Roller box manufacturing technology field.
Background technology
Current blower fan step-up gear, is divided into high-speed gear box and intermediate gear case, and gear-box is in blower fan system
Key equipment, its comprehensive quality is directly connected to the overall performance of blower fan, and therefore gear-box must meet long-life and Gao Ke
While by property, reduce weight as far as possible, improve shock resistance etc., research and develop a kind of high-speed fan that can overcome drawbacks described above and use
Gear-box becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Content of the invention
The technical problem to be solved is, for the shortcoming of above prior art presence, proposes a kind of high speed winds
Machine supporting use high-speed gear box, the gear case body of this type has intensity height, hardness greatly, wearability, corrosion resistance and antioxygen
Change ability is good, and yield strength and tensile strength are high and this its processing method is simple, low cost, good moldability.
The present invention solve above technical problem technical scheme be：A kind of high-speed fan supporting use high-speed gear box is provided,
Including casing, slow-speed shaft, high speed shaft, low-speed gear and high gear, described high gear and low-speed gear adopt monocline tooth
Wheel engaged transmission, described low-speed gear is arranged on described slow-speed shaft, and described high gear is arranged on high speed shaft, described high speed
Axle and slow-speed shaft are arranged on the bearing shell of casing, and high gear is engaged each other with low-speed gear, sets in the both sides of high gear
There is thrust disc, two thrust discs when rerunning, described low-speed gear are clipped between thrust disc；
Described casing includes following components by mass percentage：C：0.28-0.30%, Si：1.24-1.28%, Fe：0.62-
0.83%, Mg：6.53-7.14%, Zn：0.52-0.72%, Mn：0.15-0.32%, Mo：0.15-0.24%, Cr：0.24-0.36%,
Ti：0.25-0.41%, Ni：0.8-1.0%, Zr：0.05-0.15%, Nb：0.05-0.07%, V：0.01-0.03%, Cu:0.15-
0.22%, P≤0.03%, S≤0.02%, N≤0.006%；H≤0.002%；Rare earth：0.21-0.24%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：10-12%, Pr：5-7%, Sm：12-15%；Nd：
8-11%, Ce：5-8%, Gd：6-9%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 650-720 DEG C of insulation 20-30min, then rise to 750-780 DEG C, and carried out using pure argon gas using rotary getter
Refining degasification, adds the alterant of Al-10Sr and Na salt mixing to carry out Metamorphism treatment in material liquid after degasification；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 310-320 DEG C, then cold with the speed of 24-26 DEG C/h
But it is incubated 1.5-2h to when 175 DEG C, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 350-365 DEG C, then cooled down with the speed of 15-20 DEG C/h
It is incubated 1-2h to when 205 DEG C, be then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 170-190 DEG C, then carries out Carburization Treatment, at this carburizing
Reason, in oxygen concentration is less than the environment of the oxygen concentration in air, carries out to gear case body blank being heated to surface formation carburizing
Layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
Be passed through nitrogen, first will warm up 280-330 DEG C holding 1h, be then heated to 410-425 DEG C insulation 5-7h, finally heated to 470-
495 DEG C of insulation 1.5-2h, then stove be cooled to 175-180 DEG C and be air cooled to room temperature again；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
The restriction technical scheme further of the present invention, the supporting use high-speed gear box of aforesaid high-speed fan, step（9）Middle tune
Matter heat treatment concrete operations be：Processed using a normalizing and double tempering operation, normalizing：Normalizing temperature 430-450
DEG C, it is incubated 8-10min to after temperature；It is tempered for the first time：Using heat stepwise, first paragraph heating-up temperature is 240-255 DEG C, to after temperature
Insulation 15-18min, second segment heating-up temperature is 420-435 DEG C, is incubated 9-10min, carries out after being then air cooled to room temperature to after temperature
It is tempered for second；It is heated to 480-490 DEG C, be incubated 12-15min to after temperature.
The supporting use high-speed gear box of aforesaid high-speed fan, described step（9）The concrete operations of middle Tempering and Quenching are：Adopt
Processed with a normalizing and double tempering operation, normalizing：445 DEG C of normalizing temperature, is incubated 9min to after temperature；Return for the first time
Fire：Using heat stepwise, first paragraph heating-up temperature is 250 DEG C, is incubated 16min to after temperature, and second segment heating-up temperature is 430 DEG C,
It is incubated 10min to after temperature, after being then air cooled to room temperature, carry out second tempering；It is heated to 485 DEG C, be incubated 13min to after temperature.
The supporting use high-speed gear box of aforesaid high-speed fan, described casing includes following components by mass percentage：C：
0.28%, Si：1.24%, Fe：0.62%, Mg：6.53%, Zn：0.52%, Mn：0.15%, Mo：0.15%, Cr：0.24%, Ti：
0.25%, Ni：0.8%, Zr：0.05%, Nb：0.05%, V：0.01%, Cu:0.15%, P≤0.03%, S≤0.02%, N≤0.006%；
H≤0.002%；Rare earth：0.21%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：10%, Pr：5%, Sm：12%；Nd：8%, Ce：5%,
Gd：6%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 650 DEG C of insulation 20min, then rise to 750 DEG C, and carry out refining degasification using pure argon gas using rotary getter, remove
The alterant adding the mixing of Al-10Sr and Na salt in the backward material liquid of gas carries out Metamorphism treatment；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 310 DEG C, be then cooled to 175 with the speed of 24 DEG C/h
DEG C when be incubated 1.5h, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 350 DEG C, be then cooled to 205 DEG C with the speed of 15 DEG C/h
Shi Baowen 1h, is then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 170 DEG C, then carries out Carburization Treatment, and this Carburization Treatment exists
Oxygen concentration is less than in the environment of oxygen concentration in air, gear case body blank is carried out be heated to surface formation carburized layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
It is passed through nitrogen, first will warm up 280 DEG C of holding 1h, be then heated to 410 DEG C of insulation 5h, finally heated to 470 DEG C insulation 1.5h,
Then stove is cooled to 175 DEG C and is air cooled to room temperature again；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
The supporting use high-speed gear box of aforesaid high-speed fan, described casing includes following components by mass percentage：C：
0.29%, Si：1.26%, Fe：0.75%, Mg：6.87%, Zn：0.63%, Mn：0.27%, Mo：0.21%, Cr：0.29%, Ti：
0.34%, Ni：0.9%, Zr：0.09%, Nb：0.06%, V：0.02%, Cu:0.18%, P≤0.03%, S≤0.02%, N≤0.006%；
H≤0.002%；Rare earth：0.23%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：11%, Pr：6%, Sm：14%；Nd：10%, Ce：
7%, Gd：7%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 680 DEG C of insulation 25min, then rise to 760 DEG C, and carry out refining degasification using pure argon gas using rotary getter, remove
The alterant adding the mixing of Al-10Sr and Na salt in the backward material liquid of gas carries out Metamorphism treatment；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 315 DEG C, be then cooled to 175 with the speed of 25 DEG C/h
DEG C when be incubated 2h, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 360 DEG C, be then cooled to the speed of 15-20 DEG C/h
It is incubated 1.5h when 205 DEG C, be then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 180 DEG C, then carries out Carburization Treatment, and this Carburization Treatment exists
Oxygen concentration is less than in the environment of oxygen concentration in air, gear case body blank is carried out be heated to surface formation carburized layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
It is passed through nitrogen, first will warm up 310 DEG C of holding 1h, be then heated to 420 DEG C of insulation 6h, finally heated to 485 DEG C insulation 2h, so
Stove is cooled to 178 DEG C and is air cooled to room temperature more afterwards；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
Further, the supporting use high-speed gear box of aforesaid high-speed fan, described casing include by mass percentage with
Lower component：C：0.30%, Si：1.28%, Fe：0.83%, Mg：7.14%, Zn：0.72%, Mn：0.32%, Mo：0.24%, Cr：
0.36%, Ti：0.41%, Ni：1.0%, Zr：0.15%, Nb：0.07%, V：0.03%, Cu:0.22%, P≤0.03%, S≤0.02%, N
≤0.006%；H≤0.002%；Rare earth：0.24%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：12%, Pr：7%, Sm：15%；Nd：11%, Ce：
8%, Gd：9%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 720 DEG C of insulation 30min, then rise to 780 DEG C, and carry out refining degasification using pure argon gas using rotary getter, remove
The alterant adding the mixing of Al-10Sr and Na salt in the backward material liquid of gas carries out Metamorphism treatment；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 320 DEG C, be then cooled to 175 with the speed of 26 DEG C/h
DEG C when be incubated 2h, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 365 DEG C, be then cooled to 205 DEG C with the speed of 20 DEG C/h
Shi Baowen 2h, is then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 190 DEG C, then carries out Carburization Treatment, and this Carburization Treatment exists
Oxygen concentration is less than in the environment of oxygen concentration in air, gear case body blank is carried out be heated to surface formation carburized layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
It is passed through nitrogen, first will warm up 330 DEG C of holding 1h, be then heated to 425 DEG C of insulation 7h, finally heated to 495 DEG C insulation 2h, so
Stove is cooled to 180 DEG C and is air cooled to room temperature more afterwards；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
The invention has the beneficial effects as follows：
The lubricating system of the gear-box of the present invention adopt main oil pump and auxiliary oil pump to use cooperatively it is ensured that the lubricant effect of system and
Safe operation, the gear in gear-box adopts single helical gear structure, and arranges thrust disc structure in high speed shaft both sides, in order to pass
Pass load and bear outside axial force, the power on the high speed shaft of impeller can be delivered on slow-speed shaft, this construct noise is little, pass
Dynamic steadily by the correction of the flank shape to gear, the thermal deformation of gear and elastic deformation can be offseted, increase gear length of action and
Transfer strength between gear.
Do not add substantial amounts of alloy in this gear-box agent structure, reduce cost, selective addition is micro
Alloying elements cr, Nb and V；The addition of Cr is mainly the increase in quenching degree, significantly improves intensity, hardness and wearability, also increases
Corrosion resistance and the oxidation resistance of the impeller prepared are added；The affinity ratio of Nb and C is larger, and Nb has precedence over C and combines after adding
Generate niobium carbide（NbC）, effectively prevent intercrystalline corrosion；The addition of Nb, V have advantage a, in melting heating-up temperature raising
And the prolongation of temperature retention time, form carbon when austenite crystal is increasing, the little particle of nitride diffusion rises to austenite grain boundary
Fixation, stops Austenite Grain Growth, improves the Coarsening Temperature of casing；B, when in production is carried out, temperature is gradually lowered,
The carbon of Nb, V, the nitride solubility product in austenite reduces, the effect of deformation-induced precipitation in addition, and its carbon, nitride are in Austria
Family name's body disperse educt to before ferritic transformation, becomes ferritic nucleating agent, makes ferrite a large amount of under less degree of supercooling
Being formed, be difficult to grow up, thus having refined ferrite crystal grain, improving yield strength and tensile strength.
With the addition of lanthanide rare in casing of the present invention, due to above rare earth element metallic atomic radius than iron atom half
Footpath is big and to generate the film that can hinder crystal grain continued growth it is easy to fill up in its crystal grain and defect so that crystal grain refinement and
Improve performance, meanwhile, rare earth element is easily and oxygen, sulphur, lead and other elements chemical combination generate the high compound of fusing point, can play purification
Effect.
After coarse milling profile of tooth, blank carries out modifier treatment again, and the overall mechanical properties that can improve blank control heat treatment
Deflection, can improve working (machining) efficiency and the crudy of blank, using double annealing, effectively go de-stress.Machine-shaping
Impeller surface adopt thermal spraying preservative treatment, by the improvement of sprayed on material and optimization, improving the corrosion-resistant intensity of impeller,
Particularly improve the corrosion-resistant intensity of the crooked position of gap regions of case-hardening part；Impeller surface vibration can also be reduced
Abrasion, improves tear strength, improves the corrosion resistance for cavitation erosion and vibration crevice corrosion.
Specific embodiment
Embodiment 1
The present embodiment provides a kind of high-speed fan supporting use high-speed gear box, including casing, slow-speed shaft, high speed shaft, low-speed gear
And high gear, described high gear and low-speed gear adopt single helical gear engaged transmission, and described low-speed gear is arranged on institute
State on slow-speed shaft, described high gear is arranged on high speed shaft, described high speed shaft and slow-speed shaft are arranged on the bearing shell of casing, and
High gear is engaged each other with low-speed gear, is provided with thrust disc in the both sides of high gear, by institute when two thrust discs rerun
State low-speed gear to be clipped between thrust disc；
Casing includes following components by mass percentage：C：0.28%, Si：1.24%, Fe：0.62%, Mg：6.53%, Zn：
0.52%, Mn：0.15%, Mo：0.15%, Cr：0.24%, Ti：0.25%, Ni：0.8%, Zr：0.05%, Nb：0.05%, V：0.01%,
Cu:0.15%, P≤0.03%, S≤0.02%, N≤0.006%；H≤0.002%；Rare earth：0.21%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：10%, Pr：5%, Sm：12%；Nd：8%, Ce：5%,
Gd：6%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 650 DEG C of insulation 20min, then rise to 750 DEG C, and carry out refining degasification using pure argon gas using rotary getter, remove
The alterant adding the mixing of Al-10Sr and Na salt in the backward material liquid of gas carries out Metamorphism treatment；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 310 DEG C, be then cooled to 175 with the speed of 24 DEG C/h
DEG C when be incubated 1.5h, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 350 DEG C, be then cooled to 205 DEG C with the speed of 15 DEG C/h
Shi Baowen 1h, is then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 170 DEG C, then carries out Carburization Treatment, and this Carburization Treatment exists
Oxygen concentration is less than in the environment of oxygen concentration in air, gear case body blank is carried out be heated to surface formation carburized layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
It is passed through nitrogen, first will warm up 280 DEG C of holding 1h, be then heated to 410 DEG C of insulation 5h, finally heated to 470 DEG C insulation 1.5h,
Then stove is cooled to 175 DEG C and is air cooled to room temperature again；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；The concrete operations of Tempering and Quenching are：Processed using a normalizing and double tempering operation, normalizing：Normalizing temperature 445
DEG C, it is incubated 9min to after temperature；It is tempered for the first time：Using heat stepwise, first paragraph heating-up temperature is 250 DEG C, is incubated to after temperature
16min, second segment heating-up temperature is 430 DEG C, is incubated 10min, carries out second tempering after being then air cooled to room temperature to after temperature；Plus
Heat, to 485 DEG C, is incubated 13min to after temperature；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
Embodiment 2
The structure of the present embodiment is identical with embodiment 1 structure, and difference is that the casing of the present embodiment includes by mass percentage
Following components：C：0.29%, Si：1.26%, Fe：0.75%, Mg：6.87%, Zn：0.63%, Mn：0.27%, Mo：0.21%, Cr：
0.29%, Ti：0.34%, Ni：0.9%, Zr：0.09%, Nb：0.06%, V：0.02%, Cu:0.18%, P≤0.03%, S≤0.02%, N
≤0.006%；H≤0.002%；Rare earth：0.23%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：11%, Pr：6%, Sm：14%；Nd：10%, Ce：
7%, Gd：7%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 680 DEG C of insulation 25min, then rise to 760 DEG C, and carry out refining degasification using pure argon gas using rotary getter, remove
The alterant adding the mixing of Al-10Sr and Na salt in the backward material liquid of gas carries out Metamorphism treatment；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 315 DEG C, be then cooled to 175 with the speed of 25 DEG C/h
DEG C when be incubated 2h, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 360 DEG C, be then cooled to the speed of 15-20 DEG C/h
It is incubated 1.5h when 205 DEG C, be then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 180 DEG C, then carries out Carburization Treatment, and this Carburization Treatment exists
Oxygen concentration is less than in the environment of oxygen concentration in air, gear case body blank is carried out be heated to surface formation carburized layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
It is passed through nitrogen, first will warm up 310 DEG C of holding 1h, be then heated to 420 DEG C of insulation 6h, finally heated to 485 DEG C insulation 2h, so
Stove is cooled to 178 DEG C and is air cooled to room temperature more afterwards；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；The concrete operations of Tempering and Quenching are：Processed using a normalizing and double tempering operation, normalizing：Normalizing temperature 450
DEG C, it is incubated 10min to after temperature；It is tempered for the first time：Using heat stepwise, first paragraph heating-up temperature is 255 DEG C, is incubated to after temperature
18min, second segment heating-up temperature is 435 DEG C, is incubated 10min, carries out second tempering after being then air cooled to room temperature to after temperature；Plus
Heat, to 490 DEG C, is incubated 15min to after temperature；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
Embodiment 3
The structure of the present embodiment is identical with embodiment 1 structure, and difference is that the casing of the present embodiment includes by mass percentage
Following components：C：0.30%, Si：1.28%, Fe：0.83%, Mg：7.14%, Zn：0.72%, Mn：0.32%, Mo：0.24%, Cr：
0.36%, Ti：0.41%, Ni：1.0%, Zr：0.15%, Nb：0.07%, V：0.03%, Cu:0.22%, P≤0.03%, S≤0.02%, N
≤0.006%；H≤0.002%；Rare earth：0.24%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：12%, Pr：7%, Sm：15%；Nd：11%, Ce：
8%, Gd：9%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 720 DEG C of insulation 30min, then rise to 780 DEG C, and carry out refining degasification using pure argon gas using rotary getter, remove
The alterant adding the mixing of Al-10Sr and Na salt in the backward material liquid of gas carries out Metamorphism treatment；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 320 DEG C, be then cooled to 175 with the speed of 26 DEG C/h
DEG C when be incubated 2h, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 365 DEG C, be then cooled to 205 DEG C with the speed of 20 DEG C/h
Shi Baowen 2h, is then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 190 DEG C, then carries out Carburization Treatment, and this Carburization Treatment exists
Oxygen concentration is less than in the environment of oxygen concentration in air, gear case body blank is carried out be heated to surface formation carburized layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
It is passed through nitrogen, first will warm up 330 DEG C of holding 1h, be then heated to 425 DEG C of insulation 7h, finally heated to 495 DEG C insulation 2h, so
Stove is cooled to 180 DEG C and is air cooled to room temperature more afterwards；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；The concrete operations of Tempering and Quenching are：Processed using a normalizing and double tempering operation, normalizing：Normalizing temperature 430
DEG C, it is incubated 8min to after temperature；It is tempered for the first time：Using heat stepwise, first paragraph heating-up temperature is 240 DEG C, is incubated to after temperature
15min, second segment heating-up temperature is 420 DEG C, is incubated 9min, carries out second tempering after being then air cooled to room temperature to after temperature；Plus
Heat, to 480 DEG C, is incubated 12min to after temperature.
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
In addition to the implementation, the present invention can also have other embodiment.All employing equivalents or equivalent transformation shape
The technical scheme becoming, all falls within the protection domain of application claims.
Claims (6)
1. the supporting use high-speed gear box of a kind of high-speed fan, including casing, slow-speed shaft, high speed shaft, low-speed gear and high speed tooth
Wheel it is characterised in that：Described high gear and low-speed gear adopt single helical gear engaged transmission, and described low-speed gear is arranged on institute
State on slow-speed shaft, described high gear is arranged on high speed shaft, described high speed shaft and slow-speed shaft are arranged on the bearing shell of casing, and
High gear is engaged each other with low-speed gear, is provided with thrust disc in the both sides of high gear, by institute when two thrust discs rerun
State low-speed gear to be clipped between thrust disc；
Described casing includes following components by mass percentage：C：0.28-0.30%, Si：1.24-1.28%, Fe：0.62-
0.83%, Mg：6.53-7.14%, Zn：0.52-0.72%, Mn：0.15-0.32%, Mo：0.15-0.24%, Cr：0.24-0.36%,
Ti：0.25-0.41%, Ni：0.8-1.0%, Zr：0.05-0.15%, Nb：0.05-0.07%, V：0.01-0.03%, Cu:0.15-
0.22%, P≤0.03%, S≤0.02%, N≤0.006%；H≤0.002%；Rare earth：0.21-0.24%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：10-12%, Pr：5-7%, Sm：12-15%；Nd：
8-11%, Ce：5-8%, Gd：6-9%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 650-720 DEG C of insulation 20-30min, then rise to 750-780 DEG C, and carried out using pure argon gas using rotary getter
Refining degasification, adds the alterant of Al-10Sr and Na salt mixing to carry out Metamorphism treatment in material liquid after degasification；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 310-320 DEG C, then cold with the speed of 24-26 DEG C/h
But it is incubated 1.5-2h to when 175 DEG C, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 350-365 DEG C, then cooled down with the speed of 15-20 DEG C/h
It is incubated 1-2h to when 205 DEG C, be then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 170-190 DEG C, then carries out Carburization Treatment, at this carburizing
Reason, in oxygen concentration is less than the environment of the oxygen concentration in air, carries out to gear case body blank being heated to surface formation carburizing
Layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
Be passed through nitrogen, first will warm up 280-330 DEG C holding 1h, be then heated to 410-425 DEG C insulation 5-7h, finally heated to 470-
495 DEG C of insulation 1.5-2h, then stove be cooled to 175-180 DEG C and be air cooled to room temperature again；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
2. the supporting use high-speed gear box of high-speed fan according to claim 1 it is characterised in that：Step（9）In quenched heat
Process concrete operations be：Processed using a normalizing and double tempering operation, normalizing：Normalizing temperature 430-450 DEG C, arrives
It is incubated 8-10min after temperature；It is tempered for the first time：Using heat stepwise, first paragraph heating-up temperature is 240-255 DEG C, is incubated to after temperature
15-18min, second segment heating-up temperature is 420-435 DEG C, is incubated 9-10min, carries out second after being then air cooled to room temperature to after temperature
Secondary tempering；It is heated to 480-490 DEG C, be incubated 12-15min to after temperature.
3. the supporting use high-speed gear box of high-speed fan according to claim 2 it is characterised in that：Described step（9）Middle tune
Matter heat treatment concrete operations be：Processed using a normalizing and double tempering operation, normalizing：445 DEG C of normalizing temperature, arrives
It is incubated 9min after temperature；It is tempered for the first time：Using heat stepwise, first paragraph heating-up temperature is 250 DEG C, is incubated 16min to after temperature, the
Two sections of heating-up temperatures are 430 DEG C, be incubated 10min, carry out second tempering after being then air cooled to room temperature to after temperature；It is heated to 485
DEG C, it is incubated 13min to after temperature.
4. the supporting use high-speed gear box of high-speed fan according to claim 1 it is characterised in that：Quality hundred pressed by described casing
Divide and include following components than meter：C：0.28%, Si：1.24%, Fe：0.62%, Mg：6.53%, Zn：0.52%, Mn：0.15%, Mo：
0.15%, Cr：0.24%, Ti：0.25%, Ni：0.8%, Zr：0.05%, Nb：0.05%, V：0.01%, Cu:0.15%, P≤0.03%, S
≤ 0.02%, N≤0.006%；H≤0.002%；Rare earth：0.21%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：10%, Pr：5%, Sm：12%；Nd：8%, Ce：5%,
Gd：6%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 650 DEG C of insulation 20min, then rise to 750 DEG C, and carry out refining degasification using pure argon gas using rotary getter, remove
The alterant adding the mixing of Al-10Sr and Na salt in the backward material liquid of gas carries out Metamorphism treatment；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 310 DEG C, be then cooled to 175 with the speed of 24 DEG C/h
DEG C when be incubated 1.5h, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 350 DEG C, be then cooled to 205 DEG C with the speed of 15 DEG C/h
Shi Baowen 1h, is then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 170 DEG C, then carries out Carburization Treatment, and this Carburization Treatment exists
Oxygen concentration is less than in the environment of oxygen concentration in air, gear case body blank is carried out be heated to surface formation carburized layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
It is passed through nitrogen, first will warm up 280 DEG C of holding 1h, be then heated to 410 DEG C of insulation 5h, finally heated to 470 DEG C insulation 1.5h,
Then stove is cooled to 175 DEG C and is air cooled to room temperature again；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
5. the supporting use high-speed gear box of high-speed fan according to claim 1 it is characterised in that：Quality hundred pressed by described casing
Divide and include following components than meter：C：0.29%, Si：1.26%, Fe：0.75%, Mg：6.87%, Zn：0.63%, Mn：0.27%, Mo：
0.21%, Cr：0.29%, Ti：0.34%, Ni：0.9%, Zr：0.09%, Nb：0.06%, V：0.02%, Cu:0.18%, P≤0.03%, S
≤ 0.02%, N≤0.006%；H≤0.002%；Rare earth：0.23%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：11%, Pr：6%, Sm：14%；Nd：10%, Ce：
7%, Gd：7%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 680 DEG C of insulation 25min, then rise to 760 DEG C, and carry out refining degasification using pure argon gas using rotary getter, remove
The alterant adding the mixing of Al-10Sr and Na salt in the backward material liquid of gas carries out Metamorphism treatment；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 315 DEG C, be then cooled to 175 with the speed of 25 DEG C/h
DEG C when be incubated 2h, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 360 DEG C, be then cooled to the speed of 15-20 DEG C/h
It is incubated 1.5h when 205 DEG C, be then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 180 DEG C, then carries out Carburization Treatment, and this Carburization Treatment exists
Oxygen concentration is less than in the environment of oxygen concentration in air, gear case body blank is carried out be heated to surface formation carburized layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
It is passed through nitrogen, first will warm up 310 DEG C of holding 1h, be then heated to 420 DEG C of insulation 6h, finally heated to 485 DEG C insulation 2h, so
Stove is cooled to 178 DEG C and is air cooled to room temperature more afterwards；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
6. the supporting use high-speed gear box of high-speed fan according to claim 1 it is characterised in that：Quality hundred pressed by described casing
Divide and include following components than meter：C：0.30%, Si：1.28%, Fe：0.83%, Mg：7.14%, Zn：0.72%, Mn：0.32%, Mo：
0.24%, Cr：0.36%, Ti：0.41%, Ni：1.0%, Zr：0.15%, Nb：0.07%, V：0.03%, Cu:0.22%, P≤0.03%, S
≤ 0.02%, N≤0.006%；H≤0.002%；Rare earth：0.24%, balance of Al；
The component of described rare earth includes following components by mass percentage：Sc：12%, Pr：7%, Sm：15%；Nd：11%, Ce：
8%, Gd：9%, balance of La, that above each group is divided and be 100%；
Described gear case body is prepared according to the following steps：
（1）Gear housing mould is made for Modeling Material with molding sand and core sand, before making casting mold, first by the type in Modeling Material
Sand is placed in baker and is dried；
（2）Each constituent of gear case body is heated melting according to proportioning, obtains material liquid, temperature liter after all melting
To 720 DEG C of insulation 30min, then rise to 780 DEG C, and carry out refining degasification using pure argon gas using rotary getter, remove
The alterant adding the mixing of Al-10Sr and Na salt in the backward material liquid of gas carries out Metamorphism treatment；
（3）By the material liquid implantation step after Metamorphism treatment（1）In the mould of middle shaping, mould both sides arrange sprue and dispersion
Ingate, first pour into a mould during cast, when material liquid is about covered with mould half, both sides are injected simultaneously into, then after air cooling
The demoulding is obtained gear case body blank；
（4）For step（3）In gear case body blank heat at 320 DEG C, be then cooled to 175 with the speed of 26 DEG C/h
DEG C when be incubated 2h, be then air cooled to room temperature；
（5）Gear case body blank is carried out at strengthened shot peening, then tank body blank is placed processing teeth groove on roughing tooth groove machine tool
Carry out coarse milling profile of tooth operation；
（6）By step（5）In gear case body blank heat at 365 DEG C, be then cooled to 205 DEG C with the speed of 20 DEG C/h
Shi Baowen 2h, is then air cooled to room temperature；
（7）The gear case body blank that will be cooled to room temperature is heated to 190 DEG C, then carries out Carburization Treatment, and this Carburization Treatment exists
Oxygen concentration is less than in the environment of oxygen concentration in air, gear case body blank is carried out be heated to surface formation carburized layer；
（8）Nitrizing Treatment is carried out to the gear case body blank after carburizing, gear case body blank is delivered in closed container simultaneously
It is passed through nitrogen, first will warm up 330 DEG C of holding 1h, be then heated to 425 DEG C of insulation 7h, finally heated to 495 DEG C insulation 2h, so
Stove is cooled to 180 DEG C and is air cooled to room temperature more afterwards；
（9）Gear case body blank after Nitrizing Treatment is carried out Tempering and Quenching again, the casing hair after Tempering and Quenching
Be placed on after the near room temperature of base and carry out finish turning operation on lathe, and carry out finish-milling cut profile of tooth operation obtain gear case body become
Product；
（10）The finished product obtaining is carried out with x-ray inspection, checks qualified packaging and storage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610896257.9A CN106402341B (en) | 2016-10-14 | 2016-10-14 | A kind of high-speed fan is with applying mechanically high-speed gear box |
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|---|---|---|---|
| CN201610896257.9A CN106402341B (en) | 2016-10-14 | 2016-10-14 | A kind of high-speed fan is with applying mechanically high-speed gear box |
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| CN106402341B CN106402341B (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (4)
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| CN107828992A (en) * | 2017-11-14 | 2018-03-23 | 安徽福斯特汽车部件有限公司 | A kind of preparation method of the aluminium alloy wheel hub of low scrappage |
| CN107955483A (en) * | 2017-12-16 | 2018-04-24 | 苏州天亦辰针织有限公司 | A kind for the treatment of process weaved with vacuum silk boiling case |
| CN108033498A (en) * | 2017-12-16 | 2018-05-15 | 苏州纽东精密制造科技有限公司 | A kind for the treatment of process weaved with sewage disposal strainer |
| CN109280817A (en) * | 2018-10-31 | 2019-01-29 | 宁波汇通机械联接件有限公司 | A kind of bidirectional joint |
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| Publication number | Publication date |
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| CN106402341B (en) | 2018-07-17 |
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