CN101338425A - Laser fusing and coating process of wear resistant and anticorrosion alloy coatings at surface of slide plate of railroad turnout - Google Patents
Laser fusing and coating process of wear resistant and anticorrosion alloy coatings at surface of slide plate of railroad turnout Download PDFInfo
- Publication number
- CN101338425A CN101338425A CNA2008100126786A CN200810012678A CN101338425A CN 101338425 A CN101338425 A CN 101338425A CN A2008100126786 A CNA2008100126786 A CN A2008100126786A CN 200810012678 A CN200810012678 A CN 200810012678A CN 101338425 A CN101338425 A CN 101338425A
- Authority
- CN
- China
- Prior art keywords
- slide plate
- cladding
- coating
- slide chair
- plate surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Laser Beam Processing (AREA)
Abstract
A laser cladding process of an exterior wear-resisting anti-corrosive alloy coating of a slide chair of a railway switch comprises processes as follows: firstly, the surface of the slide chair is pre-heated, which means the surface of the slide chair is degreased and de-rusted under room temperature; and the surface is cleaned up by alcohol; then alloy powder is prefabricated, which means iron-base, nickel-base or cobalt base alloy powders that are ready for cladding are preplaced on the processed surface of the slide chair, and a scraping straightedge provided with a rail is used for adjusting the pretreated metal powder so that the alloy powder can be distributed on the surface of the slide chair evenly and has proper thickness to meet the thick requirement of the coating after cladding; and finally, the slide chair is hardened by the laser cladding; the laser of CO2 gas is adopted; a numerical control machine is used as a working table and the surface of the slide chair is hardened by the laser cladding. The laser cladding process has the characteristics of no pollution, high production rate, low energy consumption, the little finishing allowance of cladding coating and low combined cost.
Description
Technical field
The invention belongs to the laser melting and coating technique field, particularly the technology of railroad switch sliding bed surface preparation wear-resisting erosion resistance alloy coat.
Background technology
Track switch is the key equipment of restriction train running speed, occupies special effect in high-speed railway.Slide plate is positioned on the switch tie face of whole length of switch rail scope, and surface abrasion resistance, corrosion resisting property are had relatively high expectations.Because slide plate is exposed under the atmospheric environment, and its corrosion resisting property is also had requirement, conventional treatment process is that extra oiling is carried out antirust on the slide plate surface.Aspect slide plate wear-resisting, mechanical antifriction roller devices is arranged and to slide plate surface strengthening anti-attrition dual mode.But, will cause whole group track switch cost high, and there is no need to get half the result with twice the effort if all adopt the roller slide plate; The surface strengthening of existing turnout baseplate and restorative procedure have plating, brush plating and spraying, though but these two kinds of surface treatment methods can improve the wear resistance of slide plate, but coating combines bad with the slide plate interface, but also crack or disbonding because of stress raisers easily, reduced its strengthening effect to a certain extent.
Summary of the invention
The objective of the invention is to strengthen and renovation technique for the problem that solves above-mentioned prior art existence supplies a kind of laser melting coating of turnout baseplate.This technology is compared with conventional surface treatment, easily realizes constituency even microcell cladding, and whole process is easy to realize automatic control.
The technical scheme that adopts is:
Railroad switch sliding bed surface abrasion resistance non-corrosive alloy coating laser melting and coating process is characterized in that comprising following technological process:
(1) slide plate surface preparation
Under the room temperature degreasing and rust removal is carried out on the slide plate surface, and clean with alcohol wash.
(2) powdered alloy presets
The iron-based for the treatment of cladding or Ni-based, Co-based alloy powder are preset in the slide plate surface after the above-mentioned processing, and adjust prealloyed powder with the floating rule that has guide rail, making it to be evenly distributed on the slide plate surface thickness is 1.2-1.8mm, to satisfy the requirement of coat-thickness after the cladding, the powdered alloy that the present invention selects for use is a known technology.
(3) laser melting coating is strengthened slide plate
Select gas CO for use
2Laser apparatus, worktable are numerically-controlled machine, carry out laser melting coating on the slide plate surface and strengthen.
Concrete melting and coating process parameter is as follows:
Cladding power P=3500W～4500W
Spot diameter D=2.5mm～3mm
Scan velocity V=2.5～3m/min
Overlapping rate 30～40%
Characteristics of the present invention are that laser type is CO
2Gas laser, its maximum power is 5000W, 10.6 microns of wavelength can be realized the slide plate surface strengthening.
Characteristics such as that laser melting and coating process has is pollution-free, productivity is high, energy consumption is low, cladding layer process redundancy is little and comprehensive cost is low.In addition, laser melting coating to the reparation of easy-abrasion part have also that associativity is strong, unrelieved stress is little, no machining deformation, surface hardness height, wear-resisting, advantage such as corrosion resisting property is good, have very big development potentiality and application prospect aspect the reinforcement of turnout baseplate and the reparation.
Principle of the present invention is by the iron-based of choosing the best that is complementary with the turnout baseplate material or Ni-based, Co-based alloy powder is as cladding material, appropriate design is also optimized laser cladding technological parameter, realize and the combination of slide plate matrix excellent metallurgical, the thickness of powdered alloy is preset in the floating rule adjustment that utilization has a guide rail, coat-thickness is controlled at 0.2 millimeter after making cladding, form the alloy coat of even compact, the hardness of coating reaches more than the HRC40, have good wear resisting property, and pass through at iron-based or Ni-based, the content of control chromium makes the turnout baseplate behind the laser melting coating have the Corrosion Resistance of Stainless Steels of approaching in the Co-based alloy powder.
Embodiment
Embodiment
Railroad switch sliding bed surface abrasion resistance non-corrosive alloy coating laser melting and coating process is characterized in that comprising following technological process:
(1) slide plate surface preparation
Under the room temperature degreasing and rust removal is carried out on the slide plate surface, and clean with alcohol wash.
(2) powdered alloy presets
It is Co-based alloy powder that the present invention selects powdered alloy for use, this Co-based alloy powder is a known technology, and disclosing in the first to file file again, application number is: 200710158808.2, patent name is " a kind of laser cladding Co-based alloy powder for conductor roll ", and its Chemical Composition peace weight percent is: Cr:23%; Mo:14%; W:5%; Fe:7%; Co:3%; V:0.2%; Mn:0.8%; Si:0.5%; Y
2O
3: 0.3%; La
2O
3: 0.3%; Ce:0.3%; Surplus is Ni.
The preparation method of Ni alloy powder:
With metal Ni, Cr, Mo, W, Co, V, Fe, Si, Mn and rare earth element y
2O
3, La
2O
3, after Ce extracts by above-mentioned weight percent proportioning, put into medium-frequency induction furnace, under argon gas atmosphere, be heated to 1450-1550 ℃, powder is melted fully and mix, bottom pour ladle crucible with melt metal liquid streamer entry atomising unit, be equipped with water atomizing nozzle below the bottom pour ladle crucible, when melt metal liquid stream was flowed through nozzle by the water conservancy diversion mouth, the high velocity flow that is penetrated by nozzle smashed into small droplets, alloy liquid droplet drops on and is frozen into powder in the water subsequently.
The Co-based alloy powder for preparing is preset in slide plate surface after the above-mentioned processing, and adjusts prealloyed powder, make it to be evenly distributed on the slide plate surface and have 1.5mm thickness, to satisfy the requirement of coat-thickness after the cladding with the floating rule that has guide rail.
(3) laser melting coating is strengthened slide plate
Select DL-HL-T5000 type CO for use
2Laser apparatus, worktable are the SIEMENS numerically-controlled machine, carry out laser melting coating on the slide plate surface and strengthen.
Concrete melting and coating process parameter is as follows:
Cladding power P=4000W
Spot diameter D=2.8mm
Scan velocity V=2.8m/min
Overlapping rate 35%.
Claims (1)
1, railroad switch sliding bed surface abrasion resistance non-corrosive alloy coating laser melting and coating process is characterized in that comprising following technological process:
1), slide plate surface preparation
Under the room temperature degreasing and rust removal is carried out on the slide plate surface, and clean with alcohol wash;
2), powdered alloy presets
The iron-based for the treatment of cladding, Ni-based or Co-based alloy powder are preset in slide plate surface after the above-mentioned processing, and adjust prealloyed powder with the floating rule that has guide rail, make it to be evenly distributed on slide plate surface and have suitable thickness, to satisfy the requirement of coat-thickness after the cladding;
3), slide plate is strengthened in the light cladding
Select gas CO for use
2Laser apparatus, worktable are numerically-controlled machine, carry out laser melting coating on the slide plate surface and strengthen;
Concrete melting and coating process parameter is as follows:
Cladding power P=3500W～4500W,
Spot diameter D=2.5mm～3mm,
Scan velocity V=2.5～3m/min,
Overlapping rate 30～40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100126786A CN101338425A (en) | 2008-08-07 | 2008-08-07 | Laser fusing and coating process of wear resistant and anticorrosion alloy coatings at surface of slide plate of railroad turnout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100126786A CN101338425A (en) | 2008-08-07 | 2008-08-07 | Laser fusing and coating process of wear resistant and anticorrosion alloy coatings at surface of slide plate of railroad turnout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101338425A true CN101338425A (en) | 2009-01-07 |
Family
ID=40212594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100126786A Pending CN101338425A (en) | 2008-08-07 | 2008-08-07 | Laser fusing and coating process of wear resistant and anticorrosion alloy coatings at surface of slide plate of railroad turnout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101338425A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974749A (en) * | 2010-07-06 | 2011-02-16 | 山东建能大族激光再制造技术有限公司 | Method for strengthening scraper by laser |
| CN101974751A (en) * | 2010-07-06 | 2011-02-16 | 山东建能大族激光再制造技术有限公司 | Method for repairing speed reduction gearbox hole |
| CN102328081A (en) * | 2011-09-26 | 2012-01-25 | 华中科技大学 | Method for rapidly forming three-dimensional metal parts by high-power lasers |
| CN102586548A (en) * | 2012-03-16 | 2012-07-18 | 广州有色金属研究院 | Laser strengthening method for casting roller of aluminum casting rolling mill |
| CN103695899A (en) * | 2013-12-20 | 2014-04-02 | 北矿新材科技有限公司 | Iron-based laser cladding powder for repairing wear-resistant and corrosion-resistant cladding layer and preparation method thereof |
| CN104357835A (en) * | 2014-11-11 | 2015-02-18 | 中国兵器工业第五二研究所 | Method for preparing laser cladding iron-based coating on port machine pulley |
| CN104452488A (en) * | 2014-11-25 | 2015-03-25 | 辽宁恒泰铁路器材制造有限公司 | Bimetal liquid fusion covering and die forging turnout sliding table and manufacturing method thereof |
| CN106513689A (en) * | 2016-11-04 | 2017-03-22 | 中国铁道科学研究院铁道建筑研究所 | Method for improving turnout performance by adopting 3D printing technology |
| CN106521491A (en) * | 2016-11-30 | 2017-03-22 | 沈阳大陆激光工程技术有限公司 | Technique for manufacturing turnout bedplate of high-speed railway by laser |
| CN107881498A (en) * | 2017-11-14 | 2018-04-06 | 洛阳清科激光技术有限公司 | A kind of railway track laser reinforcing alloyage process |
| CN108118334A (en) * | 2017-12-22 | 2018-06-05 | 北京机科国创轻量化科学研究院有限公司 | A kind of method that superelevation rate laser melting coating prepares cobalt-based wear-and corrosion-resistant coating |
| CN109055931A (en) * | 2018-08-15 | 2018-12-21 | 江西科技学院 | The preparation method of laser cladding coating |
| CN111058907A (en) * | 2019-11-19 | 2020-04-24 | 中国人民解放军第五七一九工厂 | Method for adjusting fit clearance between inner wall of front edge of turbine of aircraft engine and bearing |
| CN114318325A (en) * | 2020-12-16 | 2022-04-12 | 哈尔滨特乔科技开发有限公司 | Repairing process for track slide plate and slide bed |
| CN115125530A (en) * | 2022-06-27 | 2022-09-30 | 中铁宝桥集团有限公司 | Anti-friction and anti-rust method for surface of turnout sliding bed bedplate |
-
2008
- 2008-08-07 CN CNA2008100126786A patent/CN101338425A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974751A (en) * | 2010-07-06 | 2011-02-16 | 山东建能大族激光再制造技术有限公司 | Method for repairing speed reduction gearbox hole |
| CN101974751B (en) * | 2010-07-06 | 2011-10-05 | 山东能源机械集团大族再制造有限公司 | Method for repairing speed reduction gearbox hole |
| CN101974749B (en) * | 2010-07-06 | 2011-10-05 | 山东能源机械集团大族再制造有限公司 | Method for strengthening scraper by laser |
| CN101974749A (en) * | 2010-07-06 | 2011-02-16 | 山东建能大族激光再制造技术有限公司 | Method for strengthening scraper by laser |
| CN102328081A (en) * | 2011-09-26 | 2012-01-25 | 华中科技大学 | Method for rapidly forming three-dimensional metal parts by high-power lasers |
| CN102586548A (en) * | 2012-03-16 | 2012-07-18 | 广州有色金属研究院 | Laser strengthening method for casting roller of aluminum casting rolling mill |
| CN103695899B (en) * | 2013-12-20 | 2016-01-13 | 北矿新材科技有限公司 | Iron-based laser cladding powder for repairing wear-resistant and corrosion-resistant cladding layer and preparation method thereof |
| CN103695899A (en) * | 2013-12-20 | 2014-04-02 | 北矿新材科技有限公司 | Iron-based laser cladding powder for repairing wear-resistant and corrosion-resistant cladding layer and preparation method thereof |
| CN104357835B (en) * | 2014-11-11 | 2017-02-22 | 中国兵器工业第五二研究所 | Method for preparing laser cladding iron-based coating on port machine pulley |
| CN104357835A (en) * | 2014-11-11 | 2015-02-18 | 中国兵器工业第五二研究所 | Method for preparing laser cladding iron-based coating on port machine pulley |
| CN104452488A (en) * | 2014-11-25 | 2015-03-25 | 辽宁恒泰铁路器材制造有限公司 | Bimetal liquid fusion covering and die forging turnout sliding table and manufacturing method thereof |
| CN106513689A (en) * | 2016-11-04 | 2017-03-22 | 中国铁道科学研究院铁道建筑研究所 | Method for improving turnout performance by adopting 3D printing technology |
| CN106521491A (en) * | 2016-11-30 | 2017-03-22 | 沈阳大陆激光工程技术有限公司 | Technique for manufacturing turnout bedplate of high-speed railway by laser |
| CN107881498A (en) * | 2017-11-14 | 2018-04-06 | 洛阳清科激光技术有限公司 | A kind of railway track laser reinforcing alloyage process |
| CN107881498B (en) * | 2017-11-14 | 2019-07-09 | 洛阳清科激光技术有限公司 | A kind of railway track laser reinforcing alloyage process |
| CN108118334A (en) * | 2017-12-22 | 2018-06-05 | 北京机科国创轻量化科学研究院有限公司 | A kind of method that superelevation rate laser melting coating prepares cobalt-based wear-and corrosion-resistant coating |
| CN109055931A (en) * | 2018-08-15 | 2018-12-21 | 江西科技学院 | The preparation method of laser cladding coating |
| CN111058907A (en) * | 2019-11-19 | 2020-04-24 | 中国人民解放军第五七一九工厂 | Method for adjusting fit clearance between inner wall of front edge of turbine of aircraft engine and bearing |
| CN114318325A (en) * | 2020-12-16 | 2022-04-12 | 哈尔滨特乔科技开发有限公司 | Repairing process for track slide plate and slide bed |
| CN115125530A (en) * | 2022-06-27 | 2022-09-30 | 中铁宝桥集团有限公司 | Anti-friction and anti-rust method for surface of turnout sliding bed bedplate |
| CN115125530B (en) * | 2022-06-27 | 2024-04-09 | 中铁宝桥集团有限公司 | Antifriction and rust-proof method for surface of turnout sliding bed platen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101338425A (en) | Laser fusing and coating process of wear resistant and anticorrosion alloy coatings at surface of slide plate of railroad turnout | |
| CN101338427B (en) | Laser fusing and coating process for wear resistant and etch-resistant coating of hydraulic support column cylinder and piston rod | |
| CN108456879B (en) | Method for strengthening steel rail by efficient composite cladding of laser-auxiliary heat source | |
| CN101994112A (en) | Laser cladding process for abrasion-resistant anticorrosion coating of water turbine unit runner | |
| CN102453897B (en) | Method for manufacturing tungsten carbide hard alloy wear-resistant coating of rod and wire hot press roll | |
| CN101144160B (en) | Method for melting and coating anti-rust wear-resistant alloy on steel rail surface | |
| CN101338428A (en) | Strengthen process for pick head by laser fusing and coating wear-resistant coating | |
| CN104250801B (en) | A kind of hot rolled seamless steel tube conveying roller laser cladding wear, the technique of heat-resisting alloy coating | |
| CN101994113A (en) | Laser cladding process of wear-resistant and corrosion-resistant coating of top cover of hydraulic turbine set | |
| CN104195362B (en) | A kind of high boron wear-resisting erosion alloy preparation method | |
| CN103805934B (en) | A kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding | |
| CN101994114A (en) | Laser cladding wear-resisting and heat fatigue-resisting alloy coating process for manufacturing hot rolled seamless steel tube rolling mill retained mandrel | |
| CN102453904A (en) | Method for preparing wear-resistant coating on surface of sheave groove of elevator traction sheave by laser cladding | |
| CN102146563A (en) | Production process for intelligent temperature adjusting steel rail with laser cladding layer and heat insulation coating | |
| CN102453903A (en) | Method for preparing heat-resistant and wear-resistant alloy coating on surface of continuous casting roller | |
| CN103194747B (en) | Method for laser cladding manufacturing or remanufacturing of wear and corrosion resistant wind power generator shaft | |
| CN101898241A (en) | Micro-nano-alloy bimetal composite material preparation technique and device thereof | |
| CN103194748A (en) | Method for preparing WC cemented carbide anti-wear layer on petroleum drilling tool stabilizer through laser cladding | |
| CN109136813A (en) | A kind of mine hydraulic support column surface treatment method | |
| CN104018032A (en) | Cladding material and method for repairing hot rolls by virtue of laser cladding | |
| CN107385364A (en) | A kind of amorphous coating powder used for hot spraying | |
| CN104928616A (en) | Thermal spraying method for slab continuous-casting and chamfering crystallizer narrow copper plate | |
| CN109440049B (en) | Method for preparing amorphous aluminum coating by compounding electric arc spraying and laser remelting | |
| CN102453895B (en) | Method for preparing heat-resistant and wear-resistant alloy coatings on surfaces of hot rolling plate fine rolling conveying rollers | |
| CN102453905B (en) | Method for preparing wear-resistant alloy coating on surface of wear plate of concrete pump track |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090107 |