CN109852920A - A kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment - Google Patents
A kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment Download PDFInfo
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- CN109852920A CN109852920A CN201910084096.7A CN201910084096A CN109852920A CN 109852920 A CN109852920 A CN 109852920A CN 201910084096 A CN201910084096 A CN 201910084096A CN 109852920 A CN109852920 A CN 109852920A
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Abstract
The present invention discloses a kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment, belongs to metal-modified technical field.It include clamping cleaning, surface active, ion infiltration, an oxygen atom infiltration, cooling, surface polishing, secondary oxygen atom penetrate into, cleaning, immersion oil, process flow is reasonable, easy to operate；It is environmentally friendly, reliable；The method penetrated by nonmetallic ion, there is no workpiece surface protective layers to fall off because binding force is weak, the wearability and corrosion resistance of workpiece is substantially increased, to improve the reliability that workpiece uses.
Description
Technical field
The present invention relates to metal-modified technical field, in particular to a kind of high-speed rail, motor vehicle brake piece steel back are surface-treated work
Skill.
Background technique
High-speed rail, the conventional processes of motor vehicle brake piece steel back are: QT blank --- mechanical roughing --- accurate grinding
Finished product can achieve certain anti-corrosion effect in principle for processing --- surface treatment (copper facing or phosphating process) ---,
But service life is shorter, technical requirements now are also increasingly not achieved in resistance to corrosion, and copper facing can generate heavy metal
Pollution, and surface is easy to fall off, without wearability；Phosphatization needs pickling and anti-corrosion effects are unobvious, copper facing tank liquor and spent acid
Deng all serious pollution environment.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment
High-speed rail, the workpiece service life of motor vehicle brake piece steel back process of surface treatment processing are shorter, and corrosion resistance and abrasive resistance are poor,
And serious pollution can be led to the problem of to environment.
In order to solve the above technical problems, the present invention provides a kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment, step
It is rapid as follows:
(1) clamping cleans: QT material work piece clamping and being put into cleaning oven is warming up to 80 DEG C, stirring and washing 40~
60min；
(2) surface active: the workpiece after cleaning being put into closed preheating furnace and be heated to 380~400 DEG C,
Keep the temperature 30~50min；
(3) ion penetrates into: being completely dissolved after ion infiltration furnace is warming up to 560 DEG C to the tank liquor in furnace, after being put into activation
Workpiece, in the state of 550~570 DEG C keep the temperature 3.5~4h；
(4) one times oxygen atom penetrates into: ionic oxide formation stove heating being warming up to 380 DEG C and is completely dissolved to saline oxide, is then put
Enter the workpiece penetrated into through ion, 40~60min is kept the temperature under 360~380 DEG C of states；
(5) cooling: the workpiece after oxygen atom penetrates into is put into in the cooling furnace for be connected with nitrogen cooling 30~50min；
(6) it surface polishing: by hand or mechanically polishes, removes workpiece surface weaker zone；
(7) secondary oxygen atom penetrates into: same to step (4)；
(8) it cleans: putting the workpiece in ultrasonic washing instrument, remove the foul of workpiece surface；
(9) immersion oil: after the workpiece after to be cleaned dries, being put into oil groove, takes out, obtains after so that workpiece surface is infiltrated one layer of oil
Finished product.
Optionally, steps are as follows:
(1) clamping cleans: QT material work piece clamping and being put into cleaning oven being warming up to 80 DEG C, stirring and washing 1h, removal
The greasy dirt and foul on surface；
(2) surface active: the workpiece after cleaning being put into preheating furnace and is heated to 400 DEG C, keeps the temperature 35min；
(3) ion penetrates into: being completely dissolved after ion infiltration furnace is warming up to 560 DEG C to the tank liquor in furnace, after being put into activation
Workpiece, keep the temperature 4h in the state of 560 DEG C；
(4) one times oxygen atom penetrates into: ionic oxide formation stove heating being warming up to 380 DEG C and is completely dissolved to saline oxide, is then put
Enter the workpiece penetrated into through ion, keeps the temperature 1h under 380 DEG C of states；
(5) cooling: the workpiece after oxygen atom penetrates into is put into in the cooling furnace for be connected with nitrogen cooling 50min；
(6) it surface polishing: by hand or mechanically polishes, removes workpiece surface weaker zone；
(7) secondary oxygen atom penetrates into: same to step (4)；
(8) it cleans: putting the workpiece in ultrasonic washing instrument, remove the foul of workpiece surface；
(9) immersion oil: after the workpiece after to be cleaned dries, being put into oil groove, takes out, obtains after so that workpiece surface is infiltrated one layer of oil
Finished product.
Provide a kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment in the present invention, process flow rationally, easy behaviour
Make；It is environmentally friendly, reliable；The method penetrated by nonmetallic ion, there is no workpiece surface protective layers to fall off because binding force is weak, greatly
The wearability and corrosion resistance of workpiece are improved greatly, to improve the reliability that workpiece uses.
Specific embodiment
Following specific embodiments make into one a kind of high-speed rail proposed by the present invention, motor vehicle brake piece steel back process of surface treatment
Step is described in detail.According to following explanation and claims, advantages and features of the invention will be become apparent from.
The present invention provides a kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment, process flow is as follows:
(1) clamping cleans: QT material work piece clamping and being put into cleaning oven being warming up to 80 DEG C, stirring and washing 1h, removal
The greasy dirt and foul on surface；
(2) surface active: the workpiece after cleaning is put into preheating furnace, by thermal cycle wind by the moisture of workpiece surface
It dries, is then gradually heated up and is warming up to 400 DEG C, keep the temperature 35min；Oil residues not only can be further cleared up, it can be with
The nonmetallic permeating speed of process after promotion；
(3) ion penetrates into: being completely dissolved after ion infiltration furnace is warming up to 560 DEG C to the tank liquor in furnace, after being put into activation
Workpiece, keep the temperature 4h in the state of 560 DEG C；Penetrated by nonmetallic ion, and with such as Fe/ of the metallic matrix in workpiece
The elements such as Mo/Cr form compound, improve product surface hardness and wearability and corrosion resistance, and the main matter of tank liquor is non-
Metallic element penetration enhancer predominantly can provide the inorganic smelt of nitrogen, carbon, oxygen element.
(4) one times oxygen atom penetrates into: ionic oxide formation stove heating being warming up to 380 DEG C and is completely dissolved to saline oxide, is then put
Enter the workpiece penetrated into through ion, keeps the temperature 1h under 380 DEG C of states；
(5) cooling: the workpiece after oxygen atom penetrates into being put into in the cooling furnace for be connected with nitrogen cooling 50min, utilizes nitrogen
Atmosphere encloses cooling product, and not only surface color is uniform, but also appearance uniformity can be more preferable；
(6) it surface polishing: by hand or mechanically polishes, removes workpiece surface weaker zone；
(7) secondary oxygen atom penetrates into: the workpiece after polishing being put into preheating furnace drying and is carried out in 190~210 DEG C pre-
Heat is heated to 380 DEG C subsequently into oxygen atom infiltration equipment and keeps the temperature 1h, oxygen atom is allowed to continue to penetrate into workpiece surface,
More fine and close oxidation film is formed, increases the corrosion resistance on surface and obtains more uniform appearance color；When workpiece polishes, meeting
There is certain destruction to the oxidation film of workpiece surface, the infiltration of secondary oxygen atom can further repair impaired oxidation film,
Further increase the wearability and corrosion resistance of workpiece.
(8) it cleans: putting the workpiece in ultrasonic washing instrument, remove the foul of workpiece surface；
(9) immersion oil: after the workpiece after to be cleaned dries, being put into oil groove, takes out, obtains after so that workpiece surface is infiltrated one layer of oil
Finished product.
The present invention is surface-treated brake block steel back, can not only reach by adjusting process of surface treatment and process
It is environmentally friendly to good wear-resisting, corrosion resistance, and as a kind of nonmetallic surface composite treatment process, and will not
There is heavy metal pollution.By using this technique, anti-neutral salt spray test may be implemented 100 hours, tradition plating copper piece product salt fog
Test is also not achieved 48 hours, and the anti-neutral salt spray test of phosphating process can only achieve 5 hours, so this art inventions is a kind of ring
It protects, the process of surface treatment that anti-corrosion effect is excellent.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (2)
1. a kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment, which is characterized in that steps are as follows:
(1) clamping cleans: by QT material work piece clamping and it is put into cleaning oven and is warming up to 80 DEG C, 40~60min of stirring and washing；
(2) surface active: the workpiece after cleaning being put into preheating furnace and is heated to 380~400 DEG C, and heat preservation 30~
50min；
(3) ion penetrates into: being completely dissolved after ion infiltration furnace is warming up to 560 DEG C to the tank liquor in furnace, the work after being put into activation
Part keeps the temperature 3.5~4h in the state of 550~570 DEG C；
(4) oxygen atoms penetrate into: ionic oxide formation stove heating is warming up to 380 DEG C and is completely dissolved to saline oxide, be then placed in through
The workpiece that ion has penetrated into keeps the temperature 40~60min under 360~380 DEG C of states；
(5) cooling: the workpiece after oxygen atom penetrates into is put into in the cooling furnace for be connected with nitrogen cooling 30~50min；
(6) it surface polishing: by hand or mechanically polishes, removes workpiece surface weaker zone；
(7) secondary oxygen atom penetrates into: same to step (4)；
(8) it cleans: putting the workpiece in ultrasonic washing instrument, remove the foul of workpiece surface；
(9) immersion oil: after the workpiece after to be cleaned dries, being put into oil groove, takes out, obtains into after so that workpiece surface is infiltrated one layer of oil
Product.
2. high-speed rail according to claim 1, motor vehicle brake piece steel back process of surface treatment, which is characterized in that steps are as follows:
(1) clamping cleans: QT material work piece clamping and being put into cleaning oven being warming up to 80 DEG C, stirring and washing 1h, removes surface
Greasy dirt and foul；
(2) surface active: the workpiece after cleaning being put into preheating furnace and is heated to 400 DEG C, keeps the temperature 35min；
(3) ion penetrates into: being completely dissolved after ion infiltration furnace is warming up to 560 DEG C to the tank liquor in furnace, the work after being put into activation
Part keeps the temperature 4h in the state of 560 DEG C；
(4) oxygen atoms penetrate into: ionic oxide formation stove heating is warming up to 380 DEG C and is completely dissolved to saline oxide, be then placed in through
The workpiece that ion has penetrated into keeps the temperature 1h under 380 DEG C of states；
(5) cooling: the workpiece after oxygen atom penetrates into is put into in the cooling furnace for be connected with nitrogen cooling 50min；
(6) it surface polishing: by hand or mechanically polishes, removes workpiece surface weaker zone；
(7) secondary oxygen atom penetrates into: same to step (4)；
(8) it cleans: putting the workpiece in ultrasonic washing instrument, remove the foul of workpiece surface；
(9) immersion oil: after the workpiece after to be cleaned dries, being put into oil groove, takes out, obtains into after so that workpiece surface is infiltrated one layer of oil
Product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084096.7A CN109852920A (en) | 2019-01-29 | 2019-01-29 | A kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084096.7A CN109852920A (en) | 2019-01-29 | 2019-01-29 | A kind of high-speed rail, motor vehicle brake piece steel back process of surface treatment |
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| CN109852920A true CN109852920A (en) | 2019-06-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015117777A (en) * | 2013-12-18 | 2015-06-25 | 曙ブレーキ工業株式会社 | Pressure plate, brake pad using pressure plate and process of manufacture of pressure plate and brake pad |
| CN106958004A (en) * | 2017-03-09 | 2017-07-18 | 威海久威材料科技有限公司 | Improve medium carbon structure steel steel wearability, corrosion stability nonmetallic ion and penetrate into processing method |
| CN108251788A (en) * | 2018-01-11 | 2018-07-06 | 成都赛飞斯金属科技有限公司 | A kind of EMU braking steel back handled through tufftride and soft-nitriding treatment method |
| CN109182956A (en) * | 2018-09-19 | 2019-01-11 | 宁国飞鹰汽车零部件股份有限公司 | A kind of process for surface preparation improving automotive brake pads wearability |
-
2019
- 2019-01-29 CN CN201910084096.7A patent/CN109852920A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015117777A (en) * | 2013-12-18 | 2015-06-25 | 曙ブレーキ工業株式会社 | Pressure plate, brake pad using pressure plate and process of manufacture of pressure plate and brake pad |
| CN106958004A (en) * | 2017-03-09 | 2017-07-18 | 威海久威材料科技有限公司 | Improve medium carbon structure steel steel wearability, corrosion stability nonmetallic ion and penetrate into processing method |
| CN108251788A (en) * | 2018-01-11 | 2018-07-06 | 成都赛飞斯金属科技有限公司 | A kind of EMU braking steel back handled through tufftride and soft-nitriding treatment method |
| CN109182956A (en) * | 2018-09-19 | 2019-01-11 | 宁国飞鹰汽车零部件股份有限公司 | A kind of process for surface preparation improving automotive brake pads wearability |
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Application publication date: 20190607 |