CN108179416A - A kind of restorative procedure of folded spiral shell machine helical axis - Google Patents
A kind of restorative procedure of folded spiral shell machine helical axis Download PDFInfo
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- CN108179416A CN108179416A CN201711453708.2A CN201711453708A CN108179416A CN 108179416 A CN108179416 A CN 108179416A CN 201711453708 A CN201711453708 A CN 201711453708A CN 108179416 A CN108179416 A CN 108179416A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 46
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000012372 quality testing Methods 0.000 claims abstract description 6
- 230000006378 damage Effects 0.000 claims description 15
- 238000005253 cladding Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 11
- 229910052748 manganese Inorganic materials 0.000 claims description 11
- 229910052750 molybdenum Inorganic materials 0.000 claims description 11
- 229910052759 nickel Inorganic materials 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 208000027418 Wounds and injury Diseases 0.000 claims description 5
- 230000006735 deficit Effects 0.000 claims description 5
- 208000014674 injury Diseases 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 230000003902 lesion Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000008439 repair process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laser Beam Processing (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention belongs to equipment to repair field, and in particular to a kind of laser repair method of folded spiral shell machine helical axis.The restorative procedure includes the following steps：Step 1：Detection；Step 2：Cleaning；Step 3：Powder is prepared；Step 4：Laser melting coating reparation is carried out using alloy powder；Step 5：Machine adds replica；Step 6：Clamp repairing type：External disc and helicoid smoothly transit；Step 7：Quality testing.This method is targeted, significant effect, has antiscour, wear-resistant and corrosion-resistant etc. performances, better meets using function and safety requirements.
Description
Technical field
The invention belongs to equipment to repair field, and in particular to a kind of laser repair method of folded spiral shell machine helical axis.
Background technology
The abbreviation of folded spiral shell machine, that is, Stacked sludge dewatering machine is that one kind is widely used in municipal wastewater processing engineering and stone
The water treatment system of the industrial trades such as change, light industry, chemical fibre, papermaking, pharmacy, leather.Folded spiral shell owner will by helical axis, retainer ring and
Ring three parts of moving about composition.
Aufbauprinciple：
1. folded spiral shell owner's body is layered on top of each other by retainer ring and travelling ring, the filter device leading portions that helical axis is formed therethrough
For concentrating part, back segment is de-watering section.
2. the filter seam and the screw pitch of helical axis that are formed between retainer ring and travelling ring gradually become from concentrating part to de-watering section
It is small.
3. helical axis be rotated in push sludge from concentrating part be transported to de-watering section while, also constantly drive travelling ring it is clear
Filter seam is swept, prevents from blocking.
Dewatering Principle：
Sludge after gravity concentration, is transported to de-watering section in concentrating part, in the procedure of advance, as screw pitch and filter are stitched
One's own judgment reduce and back pressure plate blocking under, generate great internal pressure, volume constantly reduces, and achievees the purpose that dehydration.
The loss of folded spiral shell machine essentially from sandstone to helical axis wash away and the corrosion of soda acid liquid.Helical axis is as folded
The important composition component of spiral shell machine improves the service life of helical axis, can integrally improve the service life of folded spiral shell machine, is created for client
Considerable economic benefit and social benefit.
Invention content
Helical axis repair process provided by the invention, using the renovation technique of cladding alloy powder, after cladding, spiral
Axis has antiscour, wear-resistant and corrosion-resistant etc. performances, makes the equipment after reparation more secure in safety and performance.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of restorative procedure of folded spiral shell machine helical axis, which is characterized in that the restorative procedure includes the following steps：
Step 1：Detection：To folded spiral shell machine helical axis morpheme and lesion size detection, degree of injury is determined, carry out impairment scale and draw
Point；
Step 2：Cleaning：The abrading section for folding spiral shell machine helical axis is cleared up, removes folded spiral shell machine screw shaft surface fatigue layer；
Step 3：Powder is configured：Alloy powder is configured；
Step 4：Laser melting coating reparation is carried out using alloy powder：The alloy powder is merged with helical axis fertile material,
Cladding layer is formed on helical axis fertile material；
Parameter in the laser melting coating operating process is：
Laser power：3500-4000W ；
Spot diameter：2-3mm；
Hot spot movement speed 400-500cm/min；
Automatic powder feeding system：Synchronous pneumatic powder feeding；
Step 5：Machine adds replica：Machine is carried out to outer diameter on grinding machine and adds processing, reaches tolerance；
Step 6：Clamp repairing type：External disc and helicoid smoothly transit；
Step 7：Quality testing：Nondestructive inspection, morpheme and size detection are carried out to the helical axis after reparation.
The impairment scale is divided into high, normal, basic three-level, and damage 0-1cm is low damage, and 1-5cm is damages, more than 5cm
It is damaged for height.
The alloy powder is by following parts by weight into being grouped as：C 0.01-0.95%, Si 0.7-1.3%, Mn
0.1-0.35%, Cr 14.8-17.2%, Mo 0.7-1.5%, Ni 6.8-7.9%, N 0.22-0.30%, Nb0.30-
0.38%, Fe surplus.
The alloy powder is divided into high, normal, basic three kinds of repairing alloy powder, and the high repairing alloy powder is by following parts by weight
It is several into being grouped as：C 0.95%, Si 1.3%, Mn 0.35%, Cr 17.2%, Mo 1.5%, Ni 7.9%, N 0.30%,
Nb0.38%。
The middle repairing alloy powder is by following parts by weight into being grouped as：C 0.05%, Si 0.90%, Mn
0.20%, Cr 15.6 %, Mo 0.90%, Ni 7.20%, N 0.24%, Nb0.32%, Fe surpluses.
The low repairing alloy powder is by following parts by weight into being grouped as：C 0.01%, Si 0.7%, Mn 0.1%,
Cr 14.8%, Mo 0.7%, Ni 6.8%, N 0.22%, Nb0.30%, Fe surpluses.
Compared with prior art, effect of the invention is that：
1. according to the impairment scale of folded spiral shell machine helical axis, repaired using different alloy powders, targetedly, effect is shown
It writes, there are antiscour, wear-resistant and corrosion-resistant etc. performances, better meet using function and safety requirements.
2. the recovery technique cladding heat affected area is small, workpiece is indeformable.Cladding layer dilution rate is low, and the melted mass of base material is small,
It is relatively low to the dilution ratio of cladding layer.
3. layer crystal grain is tiny, institutional framework is fine and close, the defects of without hole, slag inclusion, crackle, therefore its physics and chemical characteristic
Relatively good, hardness is higher, and the characteristics such as wear-resistant, corrosion-resistant are also relatively good.
4. cladding layer is combined with base material, reach metallurgical binding, cladding stable quality is not in chip off-falling obscission.
Residual stress is small, can not be heat-treated.
Description of the drawings
Fig. 1 is restorative procedure flow diagram of the present invention.
Specific embodiment
Embodiment 1
A kind of restorative procedure of folded spiral shell machine helical axis, which is characterized in that the restorative procedure includes the following steps：
Step 1：Detection：To folded spiral shell machine helical axis morpheme and lesion size detection, determine degree of injury 8.5cm, belong to high damage
Grade.
Step 2：Cleaning：The abrading section for folding spiral shell machine helical axis is cleared up, removes folded spiral shell machine screw shaft surface fatigue
Layer；
Step 3：Powder is configured：Alloy powder C 0.95%, Si 1.3%, Mn 0.35%, Cr 17.2%, Mo 1.5%, Ni
7.9%, N 0.30%, Nb0.38%.
Step 4：Laser melting coating reparation is carried out using alloy powder：The alloy powder and helical axis fertile material are melted
It closes, cladding layer is formed on helical axis fertile material；
Parameter in the laser melting coating operating process is：
Laser power：3500-4000W ；
Spot diameter：2-3mm；
Hot spot movement speed 400-500cm/min；
Automatic powder feeding system：Synchronous pneumatic powder feeding；
Step 5：Machine adds replica：Machine is carried out to outer diameter on grinding machine and adds processing, reaches tolerance；
Step 6：Clamp repairing type：External disc and helicoid smoothly transit；
Step 7：Quality testing：Nondestructive inspection, morpheme and size detection are carried out to the helical axis after reparation, as a result pore-free, splits
Line, no deformation, existing still normal use, without the chip off-falling phenomenon that comes off.
Embodiment 2
A kind of restorative procedure of folded spiral shell machine helical axis, which is characterized in that the restorative procedure includes the following steps：
Step 1：Detection：To folded spiral shell machine helical axis morpheme and lesion size detection, determine degree of injury 4.7cm, belong to middle damage
Grade.
Step 2：Cleaning：The abrading section for folding spiral shell machine helical axis is cleared up, removes folded spiral shell machine screw shaft surface fatigue
Layer.
Step 3：Powder is configured：Alloy powder C 0.05%, Si 0.90%, Mn 0.20%, Cr 15.6 %, Mo is configured
0.90%, Ni 7.20%, N 0.24%, Nb0.32%, Fe surpluses.
Step 4：Laser melting coating reparation is carried out using alloy powder：The alloy powder and helical axis fertile material are melted
It closes, cladding layer is formed on helical axis fertile material.
Parameter in the laser melting coating operating process is：
Laser power：3500-4000W ；
Spot diameter：2-3mm；
Hot spot movement speed 400-500cm/min；
Automatic powder feeding system：Synchronous pneumatic powder feeding.
Step 5：Machine adds replica：Machine is carried out to outer diameter on grinding machine and adds processing, reaches tolerance.
Step 6：Clamp repairing type：External disc and helicoid smoothly transit.
Step 7：Quality testing：Nondestructive inspection, morpheme and size detection are carried out to the helical axis after reparation, as a result without gas
Hole, crackle, no deformation, existing still normal use, without the chip off-falling phenomenon that comes off.
Embodiment 3
A kind of restorative procedure of folded spiral shell machine helical axis, which is characterized in that the restorative procedure includes the following steps：
Step 1：Detection：To folded spiral shell machine helical axis morpheme and lesion size detection 0.75cm, determine degree of injury, belong to low damage
Ranking score.
Step 2：Cleaning：The abrading section for folding spiral shell machine helical axis is cleared up, removes folded spiral shell machine screw shaft surface fatigue
Layer.
Step 3：Powder is configured：Alloy powder C 0.01%, Si 0.7%, Mn 0.1%, Cr 14.8%, Mo is configured
0.7%, Ni 6.8%, N 0.22%, Nb0.30%, Fe surpluses.
Step 4：Laser melting coating reparation is carried out using alloy powder：The alloy powder and helical axis fertile material are melted
It closes, cladding layer is formed on helical axis fertile material；
Parameter in the laser melting coating operating process is：
Laser power：3500-4000W ；
Spot diameter：2-3mm；
Hot spot movement speed 400-500cm/min；
Automatic powder feeding system：Synchronous pneumatic powder feeding.
Step 5：Machine adds replica：Machine is carried out to outer diameter on grinding machine and adds processing, reaches tolerance.
Step 6：Clamp repairing type：External disc and helicoid smoothly transit.
Step 7：Quality testing：Nondestructive inspection, morpheme and size detection are carried out to the helical axis after reparation, as a result without gas
Hole, crackle, no deformation, existing still normal use, without the chip off-falling phenomenon that comes off.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of restorative procedure of folded spiral shell machine helical axis, which is characterized in that the restorative procedure includes the following steps：
Step 1：Detection：To folded spiral shell machine helical axis morpheme and lesion size detection, degree of injury is determined, carry out impairment scale and draw
Point；
Step 2：Cleaning：The abrading section for folding spiral shell machine helical axis is cleared up, removes folded spiral shell machine screw shaft surface fatigue layer；
Step 3：Powder is prepared：Alloyage powder；
Step 4：Laser melting coating reparation is carried out using alloy powder：The alloy powder is merged with helical axis fertile material,
Cladding layer is formed on helical axis fertile material；
Parameter in the laser melting coating operating process is：
Laser power：3500-4000W ；
Spot diameter：2-3mm；
Hot spot movement speed 400-500cm/min；
Automatic powder feeding system：Synchronous pneumatic powder feeding；
Step 5：Machine adds replica：Machine is carried out to outer diameter on grinding machine and adds processing, reaches tolerance；
Step 6：Clamp repairing type：External disc and helicoid smoothly transit；
Step 7：Quality testing：Nondestructive inspection, morpheme and size detection are carried out to the helical axis after reparation.
2. the restorative procedure of a kind of folded spiral shell machine helical axis according to claim 1, which is characterized in that the impairment scale is drawn
It is divided into high, normal, basic three-level, damage 0-1cm is low damage, and 1-5cm is damage, and more than 5cm is high damage.
3. a kind of restorative procedure of folded spiral shell machine helical axis according to claim 1, which is characterized in that the alloy powder by
Following parts by weight into being grouped as：C 0.01-0.95%, Si 0.7-1.3%, Mn 0.1-0.35%, Cr 14.8-17.2%,
Mo 0.7-1.5%, Ni 6.8-7.9%, N 0.22-0.30%, Nb0.30-0.38%, Fe surpluses.
A kind of 4. restorative procedure of folded spiral shell machine helical axis according to claim 1, which is characterized in that the alloy powder point
For high, normal, basic three kinds of repairing alloy powder, the high repairing alloy powder is by following parts by weight into being grouped as： C 0.95%
, Si 1.3%, Mn 0.35%, Cr 17.2%, Mo 1.5%, Ni 7.9%, N 0.30%, Nb0.38%, Fe surpluses.
A kind of 5. restorative procedure of folded spiral shell machine helical axis according to claim 4, which is characterized in that the middle repairing alloy
Powder is by following parts by weight into being grouped as：C 0.05%, Si 0.90%, Mn 0.20%, Cr 15.6 %, Mo
0.90%, Ni 7.20%, N 0.24%, Nb0.32%, Fe surpluses.
A kind of 6. restorative procedure of folded spiral shell machine helical axis according to claim 4, which is characterized in that the low repairing alloy
Powder is by following parts by weight into being grouped as：C 0.01%, Si 0.7%, Mn 0.1%, Cr 14.8%, Mo 0.7%, Ni
6.8%, N 0.22%, Nb0.30%, Fe surpluses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453708.2A CN108179416B (en) | 2017-12-28 | 2017-12-28 | Repairing method for screw shaft of screw stacking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453708.2A CN108179416B (en) | 2017-12-28 | 2017-12-28 | Repairing method for screw shaft of screw stacking machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108179416A true CN108179416A (en) | 2018-06-19 |
| CN108179416B CN108179416B (en) | 2020-02-18 |
Family
ID=62548078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711453708.2A Active CN108179416B (en) | 2017-12-28 | 2017-12-28 | Repairing method for screw shaft of screw stacking machine |
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| Country | Link |
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| CN (1) | CN108179416B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468634A (en) * | 2018-12-25 | 2019-03-15 | 沈阳大陆激光技术有限公司 | A kind of laser melting and coating technique restores the process of milling train step pad precision |
| CN112045363A (en) * | 2020-08-07 | 2020-12-08 | 中国人民解放军第五七一九工厂 | Integrated repairing method for turbine blade damage |
| CN116038505A (en) * | 2023-04-03 | 2023-05-02 | 国营川西机器厂 | Fan rotor blade polishing method based on grading |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555184A (en) * | 2015-09-24 | 2017-04-05 | 沈阳大陆激光技术有限公司 | A kind of renovation technique of building block system screw rod |
-
2017
- 2017-12-28 CN CN201711453708.2A patent/CN108179416B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555184A (en) * | 2015-09-24 | 2017-04-05 | 沈阳大陆激光技术有限公司 | A kind of renovation technique of building block system screw rod |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468634A (en) * | 2018-12-25 | 2019-03-15 | 沈阳大陆激光技术有限公司 | A kind of laser melting and coating technique restores the process of milling train step pad precision |
| CN112045363A (en) * | 2020-08-07 | 2020-12-08 | 中国人民解放军第五七一九工厂 | Integrated repairing method for turbine blade damage |
| CN112045363B (en) * | 2020-08-07 | 2022-03-11 | 中国人民解放军第五七一九工厂 | Integrated repairing method for turbine blade damage |
| CN116038505A (en) * | 2023-04-03 | 2023-05-02 | 国营川西机器厂 | Fan rotor blade polishing method based on grading |
| CN116038505B (en) * | 2023-04-03 | 2023-06-16 | 国营川西机器厂 | Fan rotor blade polishing method based on grading |
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| CN108179416B (en) | 2020-02-18 |
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Application publication date: 20180619 Assignee: Shenyang Dalu Laser Complete Equipment Co.,Ltd. Assignor: Shenyang Dalu Laser Technology Co.,Ltd. Contract record no.: X2023210000149 Denomination of invention: A Repair Method for the Spiral Shaft of a Spiral Stacking Machine Granted publication date: 20200218 License type: Common License Record date: 20230927 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180619 Assignee: Shenyang Continental Laser Group Co.,Ltd. Assignor: Shenyang Dalu Laser Technology Co.,Ltd. Contract record no.: X2023210000150 Denomination of invention: A Repair Method for the Spiral Shaft of a Spiral Stacking Machine Granted publication date: 20200218 License type: Common License Record date: 20231007 |