CN102615285A - Automotive powder metallurgic ABS (acrylonitrile-butadiene-styrene) gear ring treating method - Google Patents
Automotive powder metallurgic ABS (acrylonitrile-butadiene-styrene) gear ring treating method Download PDFInfo
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- CN102615285A CN102615285A CN2012100796248A CN201210079624A CN102615285A CN 102615285 A CN102615285 A CN 102615285A CN 2012100796248 A CN2012100796248 A CN 2012100796248A CN 201210079624 A CN201210079624 A CN 201210079624A CN 102615285 A CN102615285 A CN 102615285A
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Abstract
The invention relates to an automotive powder metallurgic ABS (acrylonitrile-butadiene-styrene) gear ring treating method. An ABS gear ring workpiece is decontaminated and deoiled, and is treated by nitrogen and steam in a treating furnace, so that hole sealing, cooling and zinc-chromium film coating are completed. As holes of the powder metallurgic workpiece can be sealed after the ABS gear ring workpiece is treated by the nitrogen and the steam, a surface zinc-chromium coating can be coated, a stable surface coating is formed, and corrosive substances are prevented from permeating into the workpiece and corroding the workpiece. Moreover, pollution is avoided in workpiece production, the process is simple, operation is convenient, and manufacturing cost is saved. The automotive powder metallurgic ABS gear ring treating method is suitable for being applied to production of ABS gear rings of automotive brake devices.
Description
Technical field
The present invention relates to a kind of powder metallurgy gear ring surface treatment method of antilock device of brake system of car, specifically a kind of automobile-used powder metallurgy ABS gear ring processing method.
Background technology
Existing automobile is equipped with the ABS anti-blocking unit for brake; The gear ring of common ABS anti-blocking unit for brake is with powdered metallurgical material and processing method manufacturing, and the rustless property of powder metallurgy ABS gear ring is very poor, and production process needs the sealing of surface hole defect to handle; Be contaminated environment, relative complex again.
The powder metallurgy workpiece is loose porous because of it, in plating pre-treatment and electroplating process, infiltrates sour, aqueous slkali and plating bath easily, causes coating spot to occur, is outwards corroded by inside, causes coating generation pitting and loses protective effect.Hole-sealing technology is the high temperature oil removing before the plating commonly used, powellizes resin acid zinc, washing, electrolytic degreasing.Problems such as whiteness, green matter, corrosion appear after the plating.
Summary of the invention
In order to overcome the shortcoming of the hole sealing that has powder metallurgy ABS gear ring now, the present invention proposes a kind of automobile-used powder metallurgy ABS gear ring processing method.This method solves the gear ring workpiece hole sealing technical problem antirust with the surface through gear ring workpiece being carried out carry out surperficial Zinc-Chromium film coating after nitrogen and steam treatment make the hole sealing.
The scheme that technical solution problem of the present invention is adopted is: the ABS gear ring workpiece is through scrubbing, oil removing, process nitrogen and steam treatment sealing of hole, cooling and the completion of Zinc-Chromium film coating procedure in handling stove.
Good effect; Because the ABS gear ring workpiece is through after nitrogen and the steam treatment, hole that can sealing powder metallurgy workpiece helps carrying out the coating of surperficial zinc-chromium coating; Form the stable surface coating, prevent that corrosive substance is penetrated into interior and causes the workpiece corrosion.And work piece production is pollution-free, and process is simple, is convenient to operation, saves manufacturing cost.The ABS gear ring that suits at automobile-used anti-blocking unit for brake is used in producing.
The specific embodiment
The ABS gear ring workpiece is through scrubbing, oil removing, process nitrogen and steam treatment sealing of hole, cooling and the completion of Zinc-Chromium film coating procedure in handling stove.
Concrete steps:
1, scrubbing: workpiece is cleaned dirt with wash oil;
2, oil removing: under 540 ℃ of temperature conditions, carried out oil removing 2 hours with handling stove;
3, ventilation sealing of hole: in handling stove, feed N
2Gas; Fed water vapour again 2 hours, water vapor pressure 0.3mPa, flow 10m
3Oxidation reaction at high temperature takes place with iron in/h, generates Fe
3O
4, make the sealing of powder metallurgy workpiece inner pore;
4, cooling: handle heater exhaust, after 15 minutes, workpiece is taken out from handle stove, cooling under natural temperature with the stove cooling;
5, Zinc-Chromium film applies: will pass through the workpiece of handling the stove processing and carry out surperficial Zinc-Chromium film coating.
Claims (1)
1. an automobile-used powder metallurgy ABS gear ring processing method is characterized in that: the scrubbing of ABS gear ring workpiece process, oil removing, process nitrogen and steam treatment sealing of hole, cooling and the completion of Zinc-Chromium film coating procedure in handling stove;
Concrete steps:
1), scrubbing: workpiece is cleaned dirt with wash oil;
2), oil removing: under 540 ℃ of temperature conditions, carried out oil removing 2 hours with handling stove;
3), ventilation sealing of hole: in handling stove, feed N
2Gas; Fed water vapour again 2 hours, water vapor pressure 0.3mPa, flow 10m
3Oxidation reaction at high temperature takes place with iron in/h, generates Fe
3O
4, make the sealing of powder metallurgy workpiece inner pore;
4), cooling: handle heater exhaust, after 15 minutes, workpiece is taken out from handle stove, cooling under natural temperature with the stove cooling;
5), Zinc-Chromium film applies: will pass through the workpiece of handling the stove processing and carry out surperficial Zinc-Chromium film coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100796248A CN102615285A (en) | 2012-03-23 | 2012-03-23 | Automotive powder metallurgic ABS (acrylonitrile-butadiene-styrene) gear ring treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100796248A CN102615285A (en) | 2012-03-23 | 2012-03-23 | Automotive powder metallurgic ABS (acrylonitrile-butadiene-styrene) gear ring treating method |
Publications (1)
| Publication Number | Publication Date |
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| CN102615285A true CN102615285A (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100796248A Pending CN102615285A (en) | 2012-03-23 | 2012-03-23 | Automotive powder metallurgic ABS (acrylonitrile-butadiene-styrene) gear ring treating method |
Country Status (1)
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| CN (1) | CN102615285A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828142A (en) * | 2012-08-28 | 2012-12-19 | 东睦(江门)粉末冶金有限公司 | Steam treatment method for piston products |
| CN105562698A (en) * | 2014-10-17 | 2016-05-11 | 东睦新材料集团股份有限公司 | Hole sealing method for powder metallurgy chromium alloy fuel battery connecting part |
| CN110216053A (en) * | 2019-06-25 | 2019-09-10 | 宁波利之源金属涂复有限公司 | A kind of Pretreatment Technology Before Finishing of powder metallurgy workpieces |
| CN110919009A (en) * | 2019-12-25 | 2020-03-27 | 广东东睦新材料有限公司 | Machining method of oil pump rotor |
| CN114346244A (en) * | 2021-12-27 | 2022-04-15 | 广东东睦新材料有限公司 | Surface treatment method of iron-based powder metallurgy workpiece and application thereof |
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| CN1431337A (en) * | 2003-01-24 | 2003-07-23 | 刘长乐 | Metals surface heat treatment method |
| JP2004190106A (en) * | 2002-12-12 | 2004-07-08 | Mitsubishi Materials Corp | Sintered article and manufacturing method therefor |
| CN1727515A (en) * | 2004-07-29 | 2006-02-01 | 卡特彼勒公司 | Steam oxidation of powder metal parts |
| CN1907603A (en) * | 2006-08-08 | 2007-02-07 | 海门市常乐粉末冶金厂 | Manufacture method and die for powder metallurgy inside spin ratchet wheel |
| CN1974835A (en) * | 2006-12-11 | 2007-06-06 | 江苏大学 | Surface treatment process for iron-base sintered metal piece |
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2012
- 2012-03-23 CN CN2012100796248A patent/CN102615285A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| JP2004190106A (en) * | 2002-12-12 | 2004-07-08 | Mitsubishi Materials Corp | Sintered article and manufacturing method therefor |
| CN1431337A (en) * | 2003-01-24 | 2003-07-23 | 刘长乐 | Metals surface heat treatment method |
| CN1727515A (en) * | 2004-07-29 | 2006-02-01 | 卡特彼勒公司 | Steam oxidation of powder metal parts |
| CN1907603A (en) * | 2006-08-08 | 2007-02-07 | 海门市常乐粉末冶金厂 | Manufacture method and die for powder metallurgy inside spin ratchet wheel |
| CN1974835A (en) * | 2006-12-11 | 2007-06-06 | 江苏大学 | Surface treatment process for iron-base sintered metal piece |
Non-Patent Citations (2)
| Title |
|---|
| 肖合森等: "《锌铬涂层技术》", 31 January 2008, article "锌铬涂层技术概论" * |
| 韩凤麟: "《粉末冶金零件实用手册——汽车、摩托车零件》", 31 January 1996, article "含油处理与清洗" * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828142A (en) * | 2012-08-28 | 2012-12-19 | 东睦(江门)粉末冶金有限公司 | Steam treatment method for piston products |
| CN102828142B (en) * | 2012-08-28 | 2014-05-21 | 东睦(江门)粉末冶金有限公司 | Steam treatment method for piston products |
| CN105562698A (en) * | 2014-10-17 | 2016-05-11 | 东睦新材料集团股份有限公司 | Hole sealing method for powder metallurgy chromium alloy fuel battery connecting part |
| CN110216053A (en) * | 2019-06-25 | 2019-09-10 | 宁波利之源金属涂复有限公司 | A kind of Pretreatment Technology Before Finishing of powder metallurgy workpieces |
| CN110919009A (en) * | 2019-12-25 | 2020-03-27 | 广东东睦新材料有限公司 | Machining method of oil pump rotor |
| CN114346244A (en) * | 2021-12-27 | 2022-04-15 | 广东东睦新材料有限公司 | Surface treatment method of iron-based powder metallurgy workpiece and application thereof |
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Application publication date: 20120801 |