CN108973512A - A kind of integral type operating condition solid wheel and its preparation process - Google Patents
A kind of integral type operating condition solid wheel and its preparation process Download PDFInfo
- Publication number
- CN108973512A CN108973512A CN201810719607.3A CN201810719607A CN108973512A CN 108973512 A CN108973512 A CN 108973512A CN 201810719607 A CN201810719607 A CN 201810719607A CN 108973512 A CN108973512 A CN 108973512A
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- Prior art keywords
- wheel
- iron
- rim
- operating condition
- subplate
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- 239000007787 solid Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 76
- 229910052742 iron Inorganic materials 0.000 claims description 38
- 238000007670 refining Methods 0.000 claims description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L magnesium chloride Substances [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 8
- 239000005864 Sulphur Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000011574 phosphorus Substances 0.000 claims description 8
- 229910052698 phosphorus Inorganic materials 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000004484 Briquette Substances 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 6
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 6
- 239000011609 ammonium molybdate Substances 0.000 claims description 6
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 6
- 229940010552 ammonium molybdate Drugs 0.000 claims description 6
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 claims description 6
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims description 6
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 6
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 238000009933 burial Methods 0.000 claims description 3
- APTNPYLLOMXCMR-UHFFFAOYSA-N calcium sodium oxygen(2-) Chemical compound [O-2].[Na+].[Ca+2] APTNPYLLOMXCMR-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 238000010583 slow cooling Methods 0.000 claims description 3
- 239000011775 sodium fluoride Substances 0.000 claims description 3
- 235000013024 sodium fluoride Nutrition 0.000 claims description 3
- 238000009628 steelmaking Methods 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000003856 thermoforming Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/02—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body integral with rim
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/06—Disc wheels, i.e. wheels with load-supporting disc body formed by casting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of integral type operating condition solid wheel, including core wheel and with the integrally formed rim of core wheel, core wheel includes the wheel rim that subplate and integrally connected are fixed on one end face of subplate, and rim is integrally arranged the wall outer surface for being fixed on wheel rim.The wheel is by being integrally formed preparation for core wheel and rim, assembly is fixed without using retaining ring, it reduces costs, and the disengaging of core wheel and rim is not will cause in long-term use process, the security performance of the wheel of raising solves existing wheel and core wheel and rim is fixed by retaining ring, and not only processing technology is complicated, and turn high with requiring, while the problem of the quality influence wheel security performance of retaining ring.
Description
Technical field
The invention belongs to railcar field, it is related to a kind of integral type operating condition solid wheel and its preparation process.
Background technique
For rim wheel by being made of rim, core wheel and retaining ring, safety is poor.Processing technology is complicated, processing and assembly technology
It is required that it is high, no matter from process costs or economic cost, and aspect is used safely all not as good as solid wheel, while to wheel
More stringent requirements are proposed for machining accuracy and quality balance, and rim and core wheel are connected and fixed by retaining ring, are made for a long time
The disengaging that will cause rim and core wheel with the damage of retaining ring in the process in turn results in unexpected generation, therefore for the matter of retaining ring
Amount and precision are put forward higher requirements.
Summary of the invention
The purpose of the present invention is to provide a kind of integral type operating condition solid wheel and its preparation process, the wheel will be by that will take turns
Core and rim are integrally formed preparation, and assembly is fixed without using retaining ring, reduces costs, and in long-term use process not
It will cause the disengaging of core wheel and rim, the security performance of the wheel of raising solves existing wheel by retaining ring to core wheel and wheel
Hoop is fixed, and not only processing technology is complicated, and turns high with requiring, while the quality of retaining ring influences asking for wheel security performance
Topic.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of integral type operating condition solid wheel, including core wheel and with the integrally formed rim of core wheel, core wheel include subplate and
Integrally connected is fixed on the wheel rim of one end face of subplate, and rim is integrally arranged the wall outer surface for being fixed on wheel rim；
The bottom end wall outer surface integrally connected of rim is fixed with tyre tread, and tyre tread uses LM worn profile tread；
The surface side of subplate is equipped with several subplate holes, can reduce the quality of wheel by the way that subplate hole is arranged, while secondary
Plate is obliquely installed.
Further, wheel includes each component of following mass fraction: carbon 0.55-0.65%, silicon 0.17-0.37%, manganese
0.6-0.8%, phosphorus mass fraction be less than or equal to the mass fraction that the 0.035%, mass fraction of sulphur is less than or equal to 0.04%, copper
Mass fraction less than or equal to 0.25%, chromium is less than or equal to 0.25% less than or equal to the mass fraction of 0.25%, nickel, balance iron.
Further, the sum of mass fraction of copper, chromium and nickel is less than or equal to 0.5%.
Further, tyre tread includes the bottom junction with the bottom of rim in the same plane, and bottom junction bending forms curved surface,
The top of curved surface and the wall outer surface integrally connected of rim, while the tangent line of curved surface and the angle of vertical direction are 68 degree.
Further, the difference of the outer diameter of the diameter and rim of subplate is equal to 4.24 times of tyre tread width.
A kind of preparation process of integral type operating condition solid wheel, specific as follows:
The first step will weigh raw material iron silico briquette, ferrimanganic block, pure iron block, siderochrome block, iron copper billet, iron nickel block；
Second step pure iron block, siderochrome block, iron copper billet, the iron nickel block in raw material is added in converter simultaneously, at 1650 DEG C
Under heated and restored, obtain melt iron, for the mass fraction of carbon less than 0.73%, the mass fraction of sulphur is small in melt iron
In 0.07%, the mass fraction of phosphorus is less than 0.05%；
Third step injects melt iron in steel-making reaction chamber, and iron silico briquette, ferrimanganic block are then added thereto at 1500 DEG C
Under smelted again, double deoxidizer is added in smelting process, 1650 DEG C are warming up to after smelting, then be added refining agent refining
20-25min obtains refining molten iron；
Refining molten iron is poured to obtain steel ingot by the 4th step, and steel ingot carries out abundant slow cooling after taking off ingot in burial pit；
Steel ingot after cooling is passed through thermoforming process hot briquetting at 850 DEG C -1000 DEG C by the 5th step；
6th step, wheel after molding carry out quenching and tempering, prevent subplate from intaking in quenching process, obtain operating condition
Solid wheel.
Further, refining agent using calcium oxide-sodium fluoride-quartz sand-magnesium chloride compounding mixture wherein sodium fluoride,
The mass ratio of calcium oxide, quartz sand and magnesium chloride is 1:1.4:1.6:1.1.
Further, double deoxidizer the preparation method is as follows:
Sodium chloride, manganese nitrate, iron chloride, ammonium molybdate are added to the water dissolution simultaneously by the first step, it is to be dissolved completely backward its
Middle addition gama-alumina takes out after impregnation 2-4h；Wherein gama-alumina is poromerics, sodium chloride, manganese nitrate, chlorination
Iron, ammonium molybdate mixed solution enter in gap；
Gama-alumina after dipping is taken out after 350 DEG C of Muffle kiln roasting 5h, obtains complex deoxidization by second step
Agent.
Beneficial effects of the present invention:
Wheel of the invention is fixed assembly without using retaining ring, drops by the way that core wheel and rim are integrally formed preparation
Low cost, and not will cause the disengaging of core wheel and rim in long-term use process, the security performance of the wheel of raising solves
Existing wheel by retaining ring is fixed core wheel and rim, and not only processing technology is complicated, and turns high with requiring, and detains simultaneously
The quality of ring influences the problem of wheel security performance.
Wheel of the invention is 68 degree by the curved surface of setting tyre tread and the angle of vertical direction, can convenient for passing through curve
In automatic tune, tread wear is relatively uniform in the width direction, while can pass through track switch, keeps tread wear relatively uniform, prevents
Only wheel derailment.
The reduction of Oxygen Content of Molten Cast Iron may be implemented by double deoxidizer during wheel molten refining is standby by the present invention,
And then prevent the iron water oxygen level after refining higher, the oxidation of metallic element in molten iron is caused, and then cause to smelt purity drop
It is low, so that being easy to appear stomata, strength reduction inside the steel of preparation, and it will increase the frictional force of rim and rail surface,
Cause the wear-resisting property of wheel poor, so that wheel is easily damaged.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is integral type operating condition solid wheel structural schematic diagram of the present invention.
Specific embodiment
Embodiment 1:
A kind of integral type operating condition solid wheel, as shown in Figure 1, include core wheel 1 and with the integrally formed rim 2 of core wheel 1, wheel
Core 1 includes the wheel rim 12 that subplate 11 and integrally connected are fixed on 11 1 end face of subplate, and rim 2, which is integrally arranged, is fixed on wheel rim 12
Wall outer surface；By solving core wheel and rim integrated molding existing core wheel and rim and being attached admittedly by retaining ring
Fixed, retaining ring falls off or causes the disengaging of core wheel and rim when wearing in wheel long-term use process, causes contingency
Occur；
The bottom end wall outer surface integrally connected of rim 2 is fixed with tyre tread 21, and tyre tread 21 uses LM worn profile tread, tyre tread
21 include the bottom junction 211 with the bottom of rim 2 in the same plane, and junction 211 bending in bottom forms curved surface 212, curved surface 212
The wall outer surface integrally connected at top and rim 2, while the tangent line of curved surface 212 and the angle of vertical direction are 68 degree；It is convenient for
It by curve, can adjust automatically, tread wear is relatively uniform in the width direction, while can pass through track switch, make tread wear
It is relatively uniform, prevent wheel derailment；
The surface side of subplate 11 is equipped with several subplate holes 111, can reduce the matter of wheel by the way that subplate hole 111 is arranged
Amount, while subplate 11 is obliquely installed, and the intensity of wheel can be improved, and makes it have higher radial elastic, can be improved
The dynamic deformation from motion of wheel track；The difference of the outer diameter of the diameter and rim 2 of subplate 11 is equal to 4.24 times of 21 width of tyre tread；
Core wheel 1 and rim 2 are all made of the preparation of AAR-B material, instead of the core wheel (HT250) and rim wheel of original rim wheel
Rim (tyre bar), so as to avoid defect of the material in manufacturing process, as stomata, sand holes, crackle and it is loose the defects of；
The integral type operating condition solid wheel includes each component of following mass fraction:
Carbon 0.55-0.65%, silicon 0.17-0.37%, manganese 0.6-0.8%, phosphorus mass fraction be less than or equal to 0.035%,
The mass fraction that the mass fraction that the mass fraction of sulphur is less than or equal to 0.04%, copper is less than or equal to 0.25%, chromium is less than or equal to
0.25%, the mass fraction of nickel is less than or equal to 0.25%, balance iron；
The sum of mass fraction of copper, chromium and nickel is less than or equal to 0.5% simultaneously；
Embodiment 2:
The preparation process of the operating condition solid wheel is as follows:
The first step will weigh raw material iron silico briquette, ferrimanganic block, pure iron block, siderochrome block, iron copper billet, iron nickel block；
Second step pure iron block, siderochrome block, iron copper billet, the iron nickel block in raw material is added in converter simultaneously, at 1650 DEG C
Under heated and restored, obtain melt iron, for the mass fraction of carbon less than 0.73%, the mass fraction of sulphur is small in melt iron
In 0.07%, the mass fraction of phosphorus can control the intensity of rim less than 0.05%, by adjusting carbon content, while sulphur and phosphorus contain
Stomata is formed inside the rim that the reduction of amount can prevent the later period from refining, intensity is small, and will increase rim and rail
The frictional force on surface；
Third step injects melt iron in steel-making reaction chamber, and iron silico briquette, ferrimanganic block are then added thereto at 1500 DEG C
Under smelted again, double deoxidizer is added in smelting process, 1650 DEG C are warming up to after smelting, then be added refining agent refining
20-25min obtains refining molten iron, and the mass fraction for refining each component in molten iron is as follows: carbon 0.575%, silicon 0.21%, manganese
0.6%, phosphorus 0.034%, sulphur 0.04%, copper 0.18%, chromium 0.12%, nickel 0.11%, balance iron；It can be with by double deoxidizer
It realizes the reduction of Oxygen Content of Molten Cast Iron, and then prevents the iron water oxygen level after refining higher, cause metallic element in molten iron
Oxidation, and then cause to smelt purity reduction, so that being easy to appear stomata, strength reduction inside the steel of preparation, and will increase
The frictional force of rim and rail surface causes the wear-resisting property of wheel poor, so that wheel is easily damaged；
Refining molten iron is poured to obtain steel ingot by the 4th step, and steel ingot carries out abundant slow cooling after taking off ingot in burial pit；
Steel ingot after cooling is passed through thermoforming process hot briquetting at 850 DEG C -1000 DEG C by the 5th step；
6th step, wheel after molding carry out quenching and tempering, prevent subplate from intaking in quenching process, obtain operating condition
Solid wheel；
Wherein refining agent uses calcium oxide-sodium fluoride-quartz sand-magnesium chloride compounding mixture wherein sodium fluoride, oxidation
The mass ratio of calcium, quartz sand and magnesium chloride is 1:1.4:1.6:1.1；
Wherein double deoxidizer the preparation method is as follows:
Sodium chloride, manganese nitrate, iron chloride, ammonium molybdate are added to the water dissolution simultaneously by the first step, it is to be dissolved completely backward its
Middle addition gama-alumina takes out after impregnation 2-4h；Wherein gama-alumina is poromerics, sodium chloride, manganese nitrate, chlorination
Iron, ammonium molybdate mixed solution enter in gap；
Gama-alumina after dipping is taken out after 350 DEG C of Muffle kiln roasting 5h, obtains complex deoxidization by second step
Agent.
Embodiment 3:
The wheel prepared in embodiment 2 is subjected to mechanics properties testing, test process every batch of is selected 3 and tested, and ties
Fruit is as shown in table 1；
Table 1: wheel mechanics performance test results
As shown in Table 1, the hardness of wheel rim is higher, while tensile strength reaches 910N/mm2, may be implemented wheel it is long when
Between use.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (8)
1. a kind of integral type operating condition solid wheel, which is characterized in that including core wheel (1) and with core wheel (1) integrally formed rim
(2), core wheel (1) includes the wheel rim (12) that subplate (11) and integrally connected are fixed on (11) one end face of subplate, rim (2) sleeve integrating
If being fixed on the wall outer surface of wheel rim (12)；
The bottom end wall outer surface integrally connected of rim (2) is fixed with tyre tread (21), and tyre tread (21) uses LM worn profile tread；
The surface side of subplate (11) is equipped with several subplate holes (111), can reduce the matter of wheel by the way that subplate hole (111) are arranged
Amount, while subplate (11) is obliquely installed.
2. a kind of integral type operating condition solid wheel according to claim 1, which is characterized in that wheel includes following quality point
Several each components: carbon 0.55-0.65%, silicon 0.17-0.37%, manganese 0.6-0.8%, phosphorus mass fraction be less than or equal to
0.035%, it is small to be less than or equal to the 0.25%, mass fraction of chromium for the mass fraction that the mass fraction of sulphur is less than or equal to 0.04%, copper
It is less than or equal to 0.25% in the mass fraction for being equal to 0.25%, nickel, balance iron.
3. a kind of integral type operating condition solid wheel according to claim 2, which is characterized in that the quality of copper, chromium and nickel point
The sum of number is less than or equal to 0.5%.
4. a kind of integral type operating condition solid wheel according to claim 1, which is characterized in that tyre tread (21) includes and rim
(2) the bottom junction (211) of bottom in the same plane, (211) bending of bottom junction form curved surface (212), the top of curved surface (212)
The wall outer surface integrally connected in portion and rim (2), while the tangent line of curved surface (212) and the angle of vertical direction are 68 degree.
5. a kind of integral type operating condition solid wheel according to claim 1, which is characterized in that the diameter and wheel of subplate (11)
The difference for binding round the outer diameter of (2) is equal to 4.24 times of tyre tread (21) width.
6. a kind of preparation process of integral type operating condition solid wheel according to claim 1, which is characterized in that the operating condition is whole
The preparation process of body wheel is as follows:
The first step will weigh raw material iron silico briquette, ferrimanganic block, pure iron block, siderochrome block, iron copper billet, iron nickel block；
Second step, by raw material pure iron block, siderochrome block, iron copper billet, iron nickel block simultaneously be added in converter, at 1650 DEG C into
Row heating and reduction, obtain melt iron, less than 0.73%, the mass fraction of sulphur is less than the mass fraction of carbon in melt iron
0.07%, the mass fraction of phosphorus is less than 0.05%；
Third step, by melt iron inject steel-making reaction chamber in, then thereto be added iron silico briquette, ferrimanganic block at 1500 DEG C again
It is secondary to be smelted, double deoxidizer is added in smelting process, 1650 DEG C are warming up to after smelting, refining agent is then added and refines 20-
25min obtains refining molten iron；
Refining molten iron is poured to obtain steel ingot by the 4th step, and steel ingot carries out abundant slow cooling after taking off ingot in burial pit；
Steel ingot after cooling is passed through thermoforming process hot briquetting at 850 DEG C -1000 DEG C by the 5th step；
6th step, wheel after molding carry out quenching and tempering, prevent subplate from intaking in quenching process, obtain operating condition entirety
Wheel.
7. a kind of preparation process of integral type operating condition solid wheel according to claim 5, which is characterized in that refining agent is adopted
With the matter of calcium oxide-sodium fluoride-quartz sand-magnesium chloride compounding mixture wherein sodium fluoride, calcium oxide, quartz sand and magnesium chloride
The ratio between amount is 1:1.4:1.6:1.1.
8. a kind of preparation process of integral type operating condition solid wheel according to claim 5, which is characterized in that complex deoxidization
Agent the preparation method is as follows:
Sodium chloride, manganese nitrate, iron chloride, ammonium molybdate are added to the water dissolution simultaneously by the first step, it is to be dissolved completely after add thereto
Enter gama-alumina, is taken out after impregnation 2-4h；Wherein gama-alumina be poromerics, sodium chloride, manganese nitrate, iron chloride,
The mixed solution of ammonium molybdate enters in gap；
Gama-alumina after dipping is taken out after 350 DEG C of Muffle kiln roasting 5h, obtains double deoxidizer by second step.
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| CN1374206A (en) * | 2001-03-05 | 2002-10-16 | 阿姆斯泰德工业公司 | Railway wheels alloy |
| CN101245434A (en) * | 2007-12-18 | 2008-08-20 | 本钢板材股份有限公司 | Vehicle wheel steel and smelting method |
| CN101703919A (en) * | 2009-11-12 | 2010-05-12 | 北京北大先锋科技有限公司 | Load type manganese and copper series deoxidizer and preparation method and application thereof |
| CN102605144A (en) * | 2012-03-31 | 2012-07-25 | 芜湖县天海耐火炉料有限公司 | Steelmaking refining agent and preparation method of steelmaking refining agent |
| CN104325838A (en) * | 2014-10-22 | 2015-02-04 | 雷帮荣 | High-speed rail wheel and hot-extrusion integrated forming method thereof |
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2018
- 2018-07-03 CN CN201810719607.3A patent/CN108973512A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374206A (en) * | 2001-03-05 | 2002-10-16 | 阿姆斯泰德工业公司 | Railway wheels alloy |
| CN101245434A (en) * | 2007-12-18 | 2008-08-20 | 本钢板材股份有限公司 | Vehicle wheel steel and smelting method |
| CN101703919A (en) * | 2009-11-12 | 2010-05-12 | 北京北大先锋科技有限公司 | Load type manganese and copper series deoxidizer and preparation method and application thereof |
| CN102605144A (en) * | 2012-03-31 | 2012-07-25 | 芜湖县天海耐火炉料有限公司 | Steelmaking refining agent and preparation method of steelmaking refining agent |
| CN104325838A (en) * | 2014-10-22 | 2015-02-04 | 雷帮荣 | High-speed rail wheel and hot-extrusion integrated forming method thereof |
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Application publication date: 20181211 |