CN1763248A - Bearing surface anticorrosion treatment process - Google Patents
Bearing surface anticorrosion treatment process Download PDFInfo
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- CN1763248A CN1763248A CN 200410060584 CN200410060584A CN1763248A CN 1763248 A CN1763248 A CN 1763248A CN 200410060584 CN200410060584 CN 200410060584 CN 200410060584 A CN200410060584 A CN 200410060584A CN 1763248 A CN1763248 A CN 1763248A
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Abstract
The present invention is technological process for anticorrosive treatment of non-working surface in bearing through hot spraying metal and coating paint. The technological process includes the following steps: cleaning bearing surface, sand blasting, spraying metal layer with high speed oxygen-fuel gas gun or electric arc gun, eliminating surface attached particles with grinding wheel or abrasive cloth and blowing with compressed air to clean, and final closing the sprayed layer with organic paint. The present invention is used for treating bearing working in exposed circumstance to raise the service life greatly.
Description
Affiliated technical field
The invention belongs to the application of a kind of process for treating surface in the bearing protection against corrosion, relate generally to a kind of bearing surface anticorrosive treatment process method.
Background technology
Along with development of modern science and technology, also more and more higher to the use properties and the requirement of material and facility and component of machine.The environment of bearing working becomes more diversified, and the bearing of more and more particular requirements is assented and given birth to.A lot of industry requirement bearings are worked under the environment that exposes, for example special bearings such as wind power generating set, harbour machinery, oil-well rig, radar.Therefore just need bearing to have multiple functions such as corrosion-resistant, high temperature resistant, anti-oxidant, to prolong the work-ing life of bearing.Bearing often adopted technologies such as phosphatization, plating, flange, mopping in order to prevent corrosion in the past, and its complex process and Corrosion Protection are poor.
Make bearing have functions such as corrosion-resistant, high temperature resistant, anti-oxidant, need carry out special surface treatment to bearing, promptly on bearing surface, make a special working-surface, we are called coating to this special working-surface, adopt heat spraying method can effectively satisfy above-mentioned requirements.Thermospray is that the thermal source with certain form heats spray material, and the material that is heated forms the particulate of fusion or semi-melting state, and these particulates are with certain velocity shock and be deposited on the matrix surface, forms the sprayed coating with certain characteristic.Hot spray coating will increase the serviceability and the work-ing life of workpiece greatly, give existing workpiece with value-added benefit.
Thermal spraying material is the important component part of hot-spraying techniques.It and hot-spraying techniques and thermal spraying apparatus constitute the main body of hot-spraying techniques jointly.Spray material has different shapes such as powder, line, band and rod, and the selection of the material of coating both can make metal, plastics, and the mixture that also can be different materials is to reach the physical parameter of a series of regulation.And different spray material also can select for use corresponding spraying coating process to carry out operation.
Summary of the invention
The purpose of this invention is to provide a kind of bearing surface anticorrosive treatment process method, make bearing have functions such as corrosion-resistant, high temperature resistant, anti-oxidant, thereby prolong the work-ing life of bearing through anti-corrosive treatment.
Purpose of the present invention can adopt following technical scheme to realize: earlier the bearing matrix surface is cleaned, sandblasting then, utilize high speed oxygen-gas gun or silk material arc pistol on bearing surface, to spray the layer of metal layer again, remove the particle of sprayed coating surface attachment afterwards, with organic coating sprayed coating is carried out sealing treatment at last.
The concrete implementation step of above-mentioned processing method is:
1. the bearing matrix surface is cleaned.Its purpose mainly is oil removing.Moisten in matrix with oil immersion because bearing has processing in mechanical workout, and greasy existence can have a strong impact on coating quality, therefore, the present invention adopts solvent oil that matrix is cleaned.For the heavy oil dirt that is difficult to clean, then adopt rosin to carry out warm wash, up to glue the no oily thing of examination inspection with medicated napkin till.
2. the sandblasting of matrix surface:
With air compressor with suitable abrasive material continuous injection to workpiece surface with abundant rust cleaning, cleaning and alligatoring, until outward appearance that presents the metal true qualities and uniform profile pattern, reach cleaning and coarse fully, promptly surface clearness and roughness grade number reach 3 grades of Sa.It is chill low phosphorus pig iron sand or the emergy of 0.5～1.5mm that sandblast is selected granularity for use with abrasive material.Compressed air pressure is: 0.63～0.77MPa.
3. after sandblasting, matrix surface is carried out the Construction of Thermal Spraying of metal level:
Spraying equipment adopts high speed oxygen-gas gun or silk material arc pistol, wire adopts fine aluminium, pure zinc, aluminum-alloy wire, saxonia metal wire or Zn-Al alloy wire, its diameter is tackled wire before the spraying and is handled between φ 1.0～3.0mm, removes the greasy dirt and the dirt on surface.Coat-thickness is not less than 0.2mm.
A. adopt high speed oxygen-gas gun flame plating.Gaseous tension is: oxygen 0.3～0.6MPa, combustion gas (acetylene) 0.05～0.1MPa, pressurized air 0.5～0.6MPa.
B. adopt the spraying of silk material arc pistol.Operating voltage: 22～44V, compressed air pressure are 0.5～0.7MPa.
In the above-mentioned metallic substance:
Aluminium should meet the specification of quality of 1060 among the GB/T 3190-1996, Al 〉=99.6%;
Zinc should meet the specification of quality of the Zn99.99 among the GB/T 470-1997, Zn 〉=99.99%;
The composition of aluminium should meet the specification of quality of the 1070A among the GB/T 3190-1996 in the aluminium alloy, i.e. Al 〉=99.7%; Aluminium alloy can use the 5A05 among the GB/T 3190-1996, promptly contains the aluminium alloy of 5%Mg.
The composition of zinc should meet the specification of quality of the Zn99.99 among the GB/T 470-1997 in the zinc alloy, i.e. Zn 〉=99.99%; The permissible variation amount of metal is prescribed value ± 1% in the alloy.
Also can select the aluminium zinc of different ratios for use, for example 87%Zn-13%Al is to 65%Zn-35%Al (typical aluminium zinc is 85%Zn-15%Al).
4. remove the particle of sprayed coating surface attachment: can adopt general hand operated grinding wheel machine or emery cloth to handle, and blow clean with pressurized air.
5. the sealing treatment of coating:
Metallic coating is carried out sealing of hole handle, its objective is as much as possible coating porosity is blocked, and fill and lead up its pit, to prolong the work-ing life of coating.What the present invention adopted is with organic coating coating to be carried out sealing treatment.Coating is epoxy zinc rich primer, chlorinated rubber paint or polyurethane lacquer, adopts spraying or brushes technology.Be embodied as: epoxy zinc rich primer of spray earlier (or brush), spray again (or brush) (or a twice) chlorinated rubber paint or a polyurethane finish paint.The combination of this organic varnish has good corrosion-resisting function and good anti-ultraviolet function, and coating is protected more than 20 years in atmospheric exposure.
Bearing aseptic technic of the present invention is that the method that adopts the thermospray metal and be aided with coating protection on the non-working surface of bearing is carried out anticorrosion.Be mainly used in the bearing that is operated in the exposed environments, as the wind power generating set bearing of in the atmospheric exposure environment, working, harbour machinery bearing, offshore oil rig bearing, radar bearing etc.Because the surface anticorrosion of bearing is local anticorrosion, need during spraying the non-spraying surface to be protected with baffle plate, especially positions such as raceway, the flank of tooth, open holes, sealing-ring answer covering protection good.The utilization of this surface anticorrosive treatment process is that the Working environment of bearing has been opened up new space, has greatly improved the work-ing life of bearing.The bearing of crossing through art breading of the present invention has good corrosion-resisting function and good anti-ultraviolet function, and coating is protected more than 20 years in atmospheric exposure.
Embodiment
Embodiment 1: the present invention to the processing step that bearing surface carries out anti-corrosive treatment is:
(1) adopts solvent oil that the bearing matrix is cleaned, and glue examination inspection with medicated napkin.
(2) sandblasting of matrix surface: after the bearing matrix is cleaned, with air compressor with suitable abrasive material continuous injection to workpiece surface with abundant rust cleaning, cleaning and alligatoring, until outward appearance that presents the metal true qualities and uniform profile pattern, reach cleaning and coarse fully.It is the chill low phosphorus pig iron sand of 0.5mm that sandblast is selected granularity for use with abrasive material, and compressed air pressure is: 0.65MPa.Non-anticorrosion is adopted baffle plate to protect.
(3) matrix surface is carried out the Construction of Thermal Spraying of metal level: spraying equipment adopts high speed oxygen one gas gun HVOF (High Velocity Oxygen Fuel), and gaseous tension is: oxygen 0.3MPa, acetylene 0.07MPa, pressurized air 0.5MPa.Wire adopts fine aluminium, its quality to meet among the GB/T 3190-1996 1060 requirement, and Al 〉=99.6%, diameter are φ 2.0mm.Before the spraying wire is handled, removed the greasy dirt and the dirt on surface.Coat-thickness 0.25mm.Non-anticorrosion is adopted baffle plate to protect.
(4) remove the particle of sprayed coating surface attachment: adopt hand operated grinding wheel machine or emery cloth to handle, and the sprayed coating surface is blown clean with pressurized air.
(5) sealing treatment of coating: spray an epoxy zinc rich primer earlier, spray chlorinated rubber paint again twice.Non-anticorrosion is adopted special-purpose baffle plate to protect.
Embodiment 2: the present invention to the processing step that bearing surface carries out anti-corrosive treatment is:
(1) adopts solvent oil that the bearing matrix is cleaned, and glue examination inspection with medicated napkin.
(2) sandblasting of matrix surface: with air compressor with suitable abrasive material continuous injection to workpiece surface with abundant rust cleaning, cleaning and alligatoring, until outward appearance that presents the metal true qualities and uniform profile pattern, reach cleaning and coarse fully.It is the chill low phosphorus pig iron sand of 1.0mm that sandblast is selected granularity for use with abrasive material.Compressed air pressure is: 0.7MPa.Non-anticorrosion is adopted baffle plate to protect.
(3) matrix surface is carried out the Construction of Thermal Spraying of metal level: adopt high speed oxygen-gas gun HVOF (High Velocity Oxygen Fuel).Adopt the pure zinc silk material of φ 3.0mm, its quality meets the requirement of Zn99.99 among the GB/T 470-1997.Gaseous tension is: oxygen 0.45MPa, acetylene 0.08MPa, pressurized air 0.55MPa.Coat-thickness is 0.3mm.Non-anticorrosion is adopted baffle plate to protect.
(4) remove the particle of sprayed coating surface attachment: adopt hand operated grinding wheel machine or emery cloth to handle, and the sprayed coating surface is blown clean with pressurized air.
(5) sealing treatment of coating: brush an epoxy zinc rich primer earlier, brush the polyurethane finish paint again a time.
Embodiment 3: the present invention to the processing step that bearing surface carries out anti-corrosive treatment is:
(1) adopts solvent oil that the bearing matrix is cleaned, and glue examination inspection with medicated napkin.
(2) sandblasting of matrix surface: with air compressor with suitable abrasive material continuous injection to workpiece surface with abundant rust cleaning, cleaning and alligatoring, until outward appearance that presents the metal true qualities and uniform profile pattern, reach cleaning and coarse fully.It is the emergy of 1.0mm that sandblast is selected granularity for use with abrasive material.Compressed air pressure is: 0.7MPa.Non-anticorrosion is adopted baffle plate to protect.
(3) matrix surface is carried out the Construction of Thermal Spraying of metal level: adopt the spraying of a silk material arc pistol, a silk material diameter is a φ 2.0mm aluminium zinc (85%Zn-15%Al), and operating voltage: 22～44V, compressed air pressure are 0.6MPa.Non-anticorrosion is adopted baffle plate to protect.
(4) remove the particle of sprayed coating surface attachment: adopt hand operated grinding wheel machine or emery cloth to handle, and the sprayed coating surface is blown clean with pressurized air.
(5) sealing treatment of coating: spray an epoxy zinc rich primer earlier, spray the polyurethane finish paint again a time.Non-anticorrosion is adopted special-purpose baffle plate to protect.
Because hot-spraying techniques has been mature technology, so the foregoing description is slightly simple to the spraying coating process narration.But the application in bearing still is a new technology.Because the spraying of the surface of bearing for locally sprayed, needs during spraying to protect with the baffle plate of special use, especially positions such as raceway, the flank of tooth, open holes, sealing-ring answer covering protection good, and difficulty is relatively large.
In the foregoing description, should spray as early as possible after the sandblasting, its pitch time is short more good more, is preferably in construction in 4 hours, can not be above 2 hours under humidity or the salt fog atmosphere.After the sandblast,, cause the matrix surface downgrade, when having a strong impact on coating quality, should do sandblasting again owing to overstand or other reason.
In the foregoing description, spraying application must be implemented under the following conditions: the temperature that envrionment temperature is higher than 5 ℃ or matrix metal is higher 3 ℃ than atmospheric dew point at least, and in the atmosphere of rainy day, humidity or saline mist, the spraying operation must be carried out in indoor or builder's temporary shed.There is obvious defects should stop spraying immediately if find appearance of coat during spraying, must carries out sandblasting again for rejected region.
Claims (5)
1, a kind of bearing surface anticorrosive treatment process method, it is characterized in that: it may further comprise the steps: at first the matrix surface to bearing cleans, the matrix surface that cleans up is carried out sandblasting, utilize spraying equipment on the bearing surface of sandblasting, to spray the layer of metal layer then, and remove the particle of surface attachment, with organic coating sprayed coating is carried out sealing treatment at last.
2, bearing surface anticorrosive treatment process method according to claim 1 is characterized in that: adopt solvent oil that matrix is cleaned, and the counterweight greasy dirt adopts rosin to carry out warm wash, up to glue the no oily thing of examination inspection with medicated napkin till.
3, bearing surface anticorrosive treatment process according to claim 1 is characterized in that: what adopted the metallize is a material: fine aluminium, pure zinc, aluminum-alloy wire, saxonia metal wire or Zn-Al alloy wire.
4, bearing surface anticorrosive treatment process according to claim 1, it is characterized in that: adopt organic coating that metallic coating is carried out sealing treatment, the coated material that adopts is epoxy zinc rich primer, chlorinated rubber paint or polyurethane finish paint, concrete steps are: epoxy zinc rich primer of spray earlier (or brush), spray again (or brush) (or twice) chlorinated rubber paint or a polyurethane finish paint.
5. bearing surface anticorrosive treatment process according to claim 1 is characterized in that: with baffle plate the non-spraying surface is protected during spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060584 CN1763248A (en) | 2004-10-20 | 2004-10-20 | Bearing surface anticorrosion treatment process |
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| CN 200410060584 CN1763248A (en) | 2004-10-20 | 2004-10-20 | Bearing surface anticorrosion treatment process |
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| CN1763248A true CN1763248A (en) | 2006-04-26 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934264A (en) * | 2010-09-30 | 2011-01-05 | 瓦房店轴承集团有限责任公司 | Novel anticorrosive process of wind power bearing |
| CN102108480A (en) * | 2011-03-21 | 2011-06-29 | 安徽省电力公司阜阳供电公司 | New hot spraying zinc anticorrosion process of steel tube rod |
| CN104912936A (en) * | 2015-05-14 | 2015-09-16 | 广西梧州运龙港船机械制造有限公司 | Anticorrosion processing method for rudder pintle bearing |
| CN105441859A (en) * | 2015-03-12 | 2016-03-30 | 湖南华中钢结构有限公司 | Natural gas pipe anticorrosion coating method and device thereof |
| CN106622913A (en) * | 2016-10-24 | 2017-05-10 | 成都发动机（集团）有限公司 | Method for coating shaft part with inorganic aluminium coating |
| CN107790357A (en) * | 2017-10-30 | 2018-03-13 | 安徽博古特机电科技有限公司 | A kind of spraying coating process of compressor case protective coating |
| CN108152942A (en) * | 2017-12-27 | 2018-06-12 | 重庆市华阳光学仪器有限公司 | A kind of telescope steel rack surface treatment process |
| CN110923616A (en) * | 2019-11-19 | 2020-03-27 | 江苏卓奇新材料科技有限公司 | Hot spraying rare earth aluminum alloy coating reinforcing steel bar |
| CN111020447A (en) * | 2019-11-19 | 2020-04-17 | 江苏卓奇新材料科技有限公司 | Hot spraying rare earth alloy coating reinforcing steel bar |
| CN112620053A (en) * | 2020-12-03 | 2021-04-09 | 哈尔滨北方防务装备股份有限公司 | Anticorrosive spraying process method for double-section tracked vehicle |
| CN113862597A (en) * | 2021-09-30 | 2021-12-31 | 江苏卓奇新材料科技有限公司 | Bearing surface protection composite coating structure and preparation method thereof |
| CN114411084A (en) * | 2021-12-28 | 2022-04-29 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Anti-corrosion treatment method for surface of bearing outer ring of railway wagon |
| CN114763596A (en) * | 2022-03-15 | 2022-07-19 | 苏州盈孚新材料科技有限公司 | Spraying method for bridge or steel structure |
| CN115478196A (en) * | 2021-06-15 | 2022-12-16 | 贵州电网有限责任公司 | Corrosion-resistant Al-Zn-ln anticorrosive paint and spraying method thereof |
-
2004
- 2004-10-20 CN CN 200410060584 patent/CN1763248A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934264A (en) * | 2010-09-30 | 2011-01-05 | 瓦房店轴承集团有限责任公司 | Novel anticorrosive process of wind power bearing |
| CN102108480A (en) * | 2011-03-21 | 2011-06-29 | 安徽省电力公司阜阳供电公司 | New hot spraying zinc anticorrosion process of steel tube rod |
| CN105441859A (en) * | 2015-03-12 | 2016-03-30 | 湖南华中钢结构有限公司 | Natural gas pipe anticorrosion coating method and device thereof |
| CN104912936A (en) * | 2015-05-14 | 2015-09-16 | 广西梧州运龙港船机械制造有限公司 | Anticorrosion processing method for rudder pintle bearing |
| CN106622913A (en) * | 2016-10-24 | 2017-05-10 | 成都发动机（集团）有限公司 | Method for coating shaft part with inorganic aluminium coating |
| CN107790357A (en) * | 2017-10-30 | 2018-03-13 | 安徽博古特机电科技有限公司 | A kind of spraying coating process of compressor case protective coating |
| CN108152942A (en) * | 2017-12-27 | 2018-06-12 | 重庆市华阳光学仪器有限公司 | A kind of telescope steel rack surface treatment process |
| CN111020447A (en) * | 2019-11-19 | 2020-04-17 | 江苏卓奇新材料科技有限公司 | Hot spraying rare earth alloy coating reinforcing steel bar |
| CN110923616A (en) * | 2019-11-19 | 2020-03-27 | 江苏卓奇新材料科技有限公司 | Hot spraying rare earth aluminum alloy coating reinforcing steel bar |
| CN111020447B (en) * | 2019-11-19 | 2021-08-13 | 江苏卓奇新材料科技有限公司 | Hot spraying rare earth alloy coating reinforcing steel bar |
| CN112620053A (en) * | 2020-12-03 | 2021-04-09 | 哈尔滨北方防务装备股份有限公司 | Anticorrosive spraying process method for double-section tracked vehicle |
| CN115478196A (en) * | 2021-06-15 | 2022-12-16 | 贵州电网有限责任公司 | Corrosion-resistant Al-Zn-ln anticorrosive paint and spraying method thereof |
| CN113862597A (en) * | 2021-09-30 | 2021-12-31 | 江苏卓奇新材料科技有限公司 | Bearing surface protection composite coating structure and preparation method thereof |
| CN114411084A (en) * | 2021-12-28 | 2022-04-29 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Anti-corrosion treatment method for surface of bearing outer ring of railway wagon |
| CN114411084B (en) * | 2021-12-28 | 2023-08-18 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Corrosion-resistant treatment method for surface of bearing outer ring of railway wagon |
| CN114763596A (en) * | 2022-03-15 | 2022-07-19 | 苏州盈孚新材料科技有限公司 | Spraying method for bridge or steel structure |
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