CN109352261B - A kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop - Google Patents
A kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop Download PDFInfo
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- CN109352261B CN109352261B CN201811353348.3A CN201811353348A CN109352261B CN 109352261 B CN109352261 B CN 109352261B CN 201811353348 A CN201811353348 A CN 201811353348A CN 109352261 B CN109352261 B CN 109352261B
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- cold
- vertical prop
- hydraulic vertical
- cladding
- welding
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- 238000003466 welding Methods 0.000 title claims abstract description 46
- 238000005253 cladding Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000011084 recovery Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 37
- 230000007547 defect Effects 0.000 claims abstract description 14
- 238000004372 laser cladding Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 5
- 230000003746 surface roughness Effects 0.000 claims abstract description 5
- 238000005498 polishing Methods 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 239000012459 cleaning agent Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 125000003158 alcohol group Chemical group 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 229910000906 Bronze Inorganic materials 0.000 claims 1
- 210000001367 artery Anatomy 0.000 claims 1
- 239000010974 bronze Substances 0.000 claims 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 239000000843 powder Substances 0.000 description 6
- 230000008439 repair process Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention relates to a kind of cold-welding recovery methods, after existing high energy pulse cold welding pattching cladding laser surfaces hydraulic vertical prop, its restoring area often prior to workpiece, wear by other regions, and restoring area or adjacent domain the problem of often corroding, the present invention provides a kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop.This method can make the rejected region and laser cladding layer wear-resisting property having the same or corrosion resistance after the reparation of cladding laser surfaces hydraulic vertical prop；Specifically includes the following steps: 1) hydraulic vertical prop cleans, deoils；2) hydraulic vertical prop defect area is polished；3) preset cold-weldable material, preset cold-weldable material is using the material with laser cladding of material chemical component having the same；4) it is repaired using high energy pulse cold welding technique；5) subsequent mechanical processing hydraulic column defect area is up to standard to hydraulic vertical prop surface roughness.
Description
Technical field
The present invention relates to a kind of cold-welding recovery methods, and in particular to a kind of cold welding pattching of cladding laser surfaces hydraulic vertical prop
Method.
Background technique
Cladding laser surfaces technology is to be irradiated in the cladding material of matrix surface addition heterogeneity using high energy laser beam
Cladding material makes cladding material and matrix rapid melting and solidification forming simultaneously, and formation metallurgical bonding is good, dilution is extremely low
Sealer.Cladding laser surfaces technology significantly improves the property such as anti-corrosion, wear-resisting, heat-resisting, anti-oxidant of base metal surface
Can, it is widely applied in many industrial circles such as coal, steel, electric power, railway, ship at present.
Laser melting coating hydraulic vertical prop inevitably wears, lacks in subsequent grinding and use process
The service performance and the surface defect in service life of the influence workpiece such as damage, scuffing, pin hole, crackle, sand holes.
Usually overcoming the way of these defects is, groove is formed after fault location is polished, and then uses argon arc welding or CO2Gas
The welding methods such as body protection weldering carry out Bead weld repair.But the method heat input of Bead weld repair is big, and workpiece is easy to cause to generate change
Shape and secondary defect.
With the development of high energy pulse cold-welding technique, can discharge the high thermal energy generated by micro- electric moment (a few tens of milliseconds) will
Welding material special cladding is deposited, sealing of hole, filling-in etc. are repaired to the damaged part of workpiece.Since welding material special and substrate are formed
Firm heat seal strength, postwelding only need to be through the post-processings of seldom sanding and polishing.
Compared with common welding method (about several seconds), high energy pulse cold-welding technique has clear advantage.To workpiece
For matrix, the heat for being transmitted to workpiece using high energy pulse cold welding is quite few, and generate heat the less material liter made other than solder joint
Phenomena such as temperature is small, is not in workpiece deformation, cracking, annealing, discoloration, does not influence its machining property, can carry out filing, mill
The later periods machining such as cut, polish.
But existing hydraulic vertical prop, after carrying out high energy pulse cold welding pattching, through actually using, restoring area is often first
In workpiece, other regions are worn, and restoring area or adjacent domain are often corroded.
Summary of the invention
After existing high energy pulse cold welding pattching cladding laser surfaces hydraulic vertical prop, restoring area is often prior to workpiece
The problem of other regions are worn, and restoring area or adjacent domain are often corroded, the present invention provide a kind of laser surface
The cold-welding recovery method of cladding hydraulic vertical prop.
Applicant has found after to multiple laser melting coating hydraulic vertical prop comprehensive analysis and a large number of experiments there are surface defect,
Why there is above-mentioned technical problem, be because existing hydraulic vertical prop reparation use routine stainless steel welding stick or patch (material for
High energy pulse cold welding 316L) is carried out to workpiece as cold-weldable material.And after using the existing stainless steel welding stick or patch to repair,
The surface hardness of restoring area is generally between 15~HRC20 of HRC, well below corresponding laser cladding layer hardness (HRC 50
~HRC 55) so that the restoring area becomes the weak part of abrasion, worn prior to other regions.Simultaneously as
High energy pulse cold welding use stainless steel welding stick or patch it is different from cladding alloy powder chemical component so that the restoring area and
It is poor that there are corrosion potentials in other cladding regions, causes the restoring area or adjacent domain that electrochemical corrosion occurs, to destroy liquid
The integrality for pressing leg surface, influences service life.
According to the studies above achievement, present invention provide the technical scheme that a kind of cladding laser surfaces hydraulic vertical prop is cold
Restorative procedure is welded, the rejected region after this method can be such that cladding laser surfaces hydraulic vertical prop repairs has phase with laser cladding layer
Same wear-resisting property or corrosion resistance；
It is characterized in that, comprising the following steps:
1) hydraulic vertical prop cleans, deoils；
2) hydraulic vertical prop defect area is polished；
3) preset cold-weldable material, preset cold-weldable material is using the material with laser cladding of material chemical component having the same
Material；
4) it is repaired using high energy pulse cold welding technique；
5) subsequent mechanical processing hydraulic column defect area is up to standard to hydraulic vertical prop surface roughness.
Further, in step 3), the preset cold-weldable material is that cladding alloy powder or laser cladding layer are cut
Material.
Further, in step 3), the preset cold-weldable material thickness is not more than 0.5mm.
Further, in step 4), described its welding current of high energy pulse cold welding technique is 0~99A, pulse frequency 1
~5HZ, 1~99ms of pulse width.
Further, in step 1), hydraulic vertical prop is cleaned to the whole defects of exposing using cleaning agent.
Further, above-mentioned cleaning agent is alcohol or acetone.
Further, it in step 2), is accurately polished using grinding tool, the fault location after polishing is convenient for preset cold welding material
Material, polishing is until expose deposited metals gloss.
Further, above-mentioned grinding tool uses file or angle grinder.
Further, in step 5), subsequent mechanical processing is processed using turning or grinding or filing or polishing mode.
Compared with prior art, the invention has the advantages that
1, using alloy powder identical with cladding material as cold-weldable material, area to be repaired is available and cladding layer
The identical chemical component in region, wear-resisting property or corrosion resistance.
2, using the cladding layer chip material (such as cutting thin slice) generated in turning process as cold-weldable material, so not
Restoring area can be only set to obtain chemical component identical with cladding layer region, wear-resisting property and corrosion resistance, and sufficiently benefit
With discarded material, recycling for material is accomplished, has saved rehabilitation cost.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
Embodiment 1
In the present embodiment, 115 × 1075mm of specification Φ of cladding laser surfaces hydraulic vertical prop to be repaired；Hydraulic vertical prop melts
Material is covered using Fe-Cr-B-Si self-fluxing alloyed powder, and the stomata of Φ 1mm occurs in cladding surface after the completion of grinding.
It is repaired as steps described below to cladding laser surfaces hydraulic vertical prop to be repaired in the present embodiment:
1) at the stomata clean, deoil；
2) polishing reaming is carried out using electronic bistrique；
3) the Fe-Cr-B-Si self-fluxing alloyed powder of thickness 0.3mm is placed as cold-weldable material.
It 4) is 30A, pulse frequency 3HZ, pulsewidth 30ms by cold welding machine welding current, using high energy pulse cold welding technique cold welding
It repairs；
5) filing is carried out after the completion of repairing is machined to desired surface roughness.
Embodiment 2
In the present embodiment, 260 × 1100mm of specification Φ of cladding laser surfaces hydraulic vertical prop to be repaired；Hydraulic vertical prop melts
Material is covered using Fe-Cr-B-Si self-fluxing alloyed powder.There is long 10mm, width to hydraulic vertical prop in cladding surface in use
The wear-out defect of 2mm, depth 0.4mm.
Cladding laser surfaces hydraulic vertical prop to be repaired in the present embodiment is repaired as steps described below:
1) at the wear-out defect clean, deoil；
2) grinding process is carried out using angle grinder；
3) the Fe-Cr-B-Si cladding layer for placing thickness 0.5mm cuts material；
4) cold welding machine welding current is set as 90A, pulse frequency 5HZ, pulsewidth 80ms, using high energy pulse cold welding technique
Cold welding pattching；
5) grinding is carried out after the completion of repairing to desired surface roughness.
The preferred embodiment that above-described embodiment is realized for the present invention, and non-limiting exhaustion, the present invention is gone back under same idea
There can be other variations.It should be noted that without departing from the inventive concept of the premise, any obvious replacement
Within that scope of the present invention.
Claims (7)
1. a kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop, which comprises the following steps:
1) hydraulic vertical prop cleans, deoils；
2) hydraulic vertical prop defect area is polished；
3) preset cold-weldable material, preset cold-weldable material is used to be closed with the laser melting coating that laser cladding of material has identical chemical component
Bronze end or laser cladding layer cut material；
4) it is repaired using high energy pulse cold welding technique；Described its welding current of high energy pulse cold welding technique is 0~99A, arteries and veins
Rushing frequency is 1~5HZ, 1~99ms of pulse width；
5) subsequent mechanical processing hydraulic column defect area is up to standard to hydraulic vertical prop surface roughness.
2. a kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop according to claim 1, it is characterised in that: step
3) in, the thickness of the preset cold-weldable material is not more than 0.5mm.
3. a kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop according to claim 2, it is characterised in that: step
1) in, hydraulic vertical prop is cleaned to the whole defects of exposing using cleaning agent.
4. a kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop according to claim 3, it is characterised in that: described
Cleaning agent is alcohol or acetone.
5. a kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop according to claim 4, it is characterised in that: step
2) it in, is accurately polished using grinding tool, until exposing deposited metals gloss.
6. a kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop according to claim 5, it is characterised in that: described
Grinding tool uses file or angle grinder.
7. a kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop according to claim 6, it is characterised in that: step
5) in, subsequent mechanical processing is processed using turning or grinding or filing or polishing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811353348.3A CN109352261B (en) | 2018-11-14 | 2018-11-14 | A kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811353348.3A CN109352261B (en) | 2018-11-14 | 2018-11-14 | A kind of cold-welding recovery method of cladding laser surfaces hydraulic vertical prop |
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| Publication Number | Publication Date |
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| CN109352261A CN109352261A (en) | 2019-02-19 |
| CN109352261B true CN109352261B (en) | 2019-11-15 |
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| CN118143286B (en) * | 2024-05-10 | 2024-07-23 | 成都航空职业技术学院 | Method for reducing defects of surface layer of SLM formed 18Ni300 steel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817832A (en) * | 2016-04-05 | 2016-08-03 | 苗西魁 | Field repair and remanufacturing process of pressure container |
| CN107761095A (en) * | 2017-10-23 | 2018-03-06 | 江西瑞曼增材科技有限公司 | A kind of band chromium coating Axle Parts coating abrasion laser melting coating restorative procedure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005040361A1 (en) * | 2005-08-26 | 2007-03-01 | Robert Bosch Gmbh | Metallic components for electromagnetically operated fuel injection valve, have surface-roughening structure that is provided by laser, where metal oxides such as chrome oxides are deposited in roughening structure |
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2018
- 2018-11-14 CN CN201811353348.3A patent/CN109352261B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817832A (en) * | 2016-04-05 | 2016-08-03 | 苗西魁 | Field repair and remanufacturing process of pressure container |
| CN107761095A (en) * | 2017-10-23 | 2018-03-06 | 江西瑞曼增材科技有限公司 | A kind of band chromium coating Axle Parts coating abrasion laser melting coating restorative procedure |
Non-Patent Citations (1)
| Title |
|---|
| 冷焊技术在液压支架修复再制造的应用研究;丁紫阳等;《煤矿机械》;20170315;第38卷(第3期);第127-128页 * |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: A cold welding repair method of laser surface cladding hydraulic column Effective date of registration: 20210622 Granted publication date: 20191115 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: XI'AN BESAME LASER TECHNOLOGY Co.,Ltd. Registration number: Y2021610000158 |
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Date of cancellation: 20221009 Granted publication date: 20191115 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: XI'AN BESAME LASER TECHNOLOGY Co.,Ltd. Registration number: Y2021610000158 |
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Denomination of invention: A cold welding repair method of laser cladding hydraulic column Effective date of registration: 20221020 Granted publication date: 20191115 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: XI'AN BESAME LASER TECHNOLOGY Co.,Ltd. Registration number: Y2022610000672 |
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Date of cancellation: 20231220 Granted publication date: 20191115 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: XI'AN BESAME LASER TECHNOLOGY Co.,Ltd. Registration number: Y2022610000672 |
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Denomination of invention: A Cold Welding Repair Method for Laser Surface Cladding Hydraulic Column Effective date of registration: 20231221 Granted publication date: 20191115 Pledgee: Xi'an Small and Micro Enterprise Financing Guarantee Co.,Ltd. Pledgor: XI'AN BESAME LASER TECHNOLOGY Co.,Ltd. Registration number: Y2023610000768 |