CN101050517A - Technique method of treatment for modifying surface of ferrous material - Google Patents
Technique method of treatment for modifying surface of ferrous material Download PDFInfo
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- CN101050517A CN101050517A CN 200710040663 CN200710040663A CN101050517A CN 101050517 A CN101050517 A CN 101050517A CN 200710040663 CN200710040663 CN 200710040663 CN 200710040663 A CN200710040663 A CN 200710040663A CN 101050517 A CN101050517 A CN 101050517A
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Abstract
This invention relates to a method for surface modification of steel material or steel component by combined treatment of gaseous nitrocarburization and post oxidation. The method comprises: (1) performing vacuum washing of the steel material, and pre-oxidizing at 400 deg.C; (2) placing the steel material in a box-type nitrocarburization heat treatment furnace, introducing mixed gases of NH3, N2 and CO2, reacting at 550-570 deg.C, and cooling with oil; (3) polishing, placing in an oxidation furnace, performing post oxidation with high-temperature steam for 1 h, and polishing to obtain steel material with high wear resistance and high corrosion resistance.
Description
Technical field
The present invention relates to the processing method of a kind of ferrous materials or iron and steel parts surface Modification, belong to metal surface properties modification treatment process technical field.
Background technology
Ferrous materials or iron and steel parts surface Modification have several different methods, and purpose mainly is for wear resistance that improves steel material surface and solidity to corrosion.Treatment technology in the past has: plating hard chromium on surface method, salt bath Combined Processing method, triniding, cementing process, oxidation style etc.Salt bath Combined Processing method is to handle iron and steel parts in nitrogenize salt bath and two kinds of salt baths of oxidation salt bath, has realized the compound of nitriding operation and oxidation operation, and its diffusion layer organization is the compound of nitride and oxide compound.Salt bath Combined Processing method is subjected to the restriction with the salt specification of quality, if nitridation salt can't meet the quality requirement, can cause the defective of infiltration layer poor stability, and have problem of environmental pollution.As for the plating hard chromium on surface method, then more can cause environmental pollution, and country's explicit stipulation, banned use of Cr
6+
Existing abroad nitrogenize and rear oxidation technology have been made the combination plant that nitrogenize and oxidation operation are united two into one as German IVA company; But adopt nitrogen medium in the process of cooling, its cooling rate is slow, and cooling time is long, production efficiency is reduced, and cause that needle-like γ ' separates out mutually in the ferrite, reduces the material anti-fatigue performance.
In recent years, progressively carry out gas nitrocarburizing and rear oxidation, ionitrocarburizing and the development of rear oxidation Study on Technology both at home and abroad, this composite technology has become current focus.
Summary of the invention
The purpose of this invention is to provide a kind of raising ferrous materials or iron and steel parts surface abrasion resistance and corrosion proof modification process method.
A kind of technique method of treatment for modifying surface of ferrous material of the present invention is characterized in that adopting gas nitrocarburizing and rear oxidation composite treatment process, and has following technological process and step:
(1) at first steel material surface is carried out vacuum cleaned, be put in subsequently in the stove and under 400 ℃ of temperature, carry out preoxidation;
(2) then material is put in the box carbonitriding heat treatment furnace of existing love association woods; In stove, import NH
3, N
2And CO
2Mixed gas, heat temperature raising is to 550～570 ℃ of temperature of reaction, the reaction times reaches 4 hours;
Reaction finishes the back and adopts the oil cooling mode to cool off; The volume ratio of mixed gas flow is: NH
3: N
2: CO
2=50: 45: 5;
(3) with cooled material, polish earlier, put into oxidized still subsequently, carry out rear oxidation with 500～550 ℃ steam and handled 1 hour, and then polish; Finally make have high-wearing feature, the ferrous materials on high anti-corrosion surface.
Relevant mechanism explain in the inventive method technological process: gas nitrocarburizing and rear oxidation technology are to carry out gas nitrocarburizing at ferrous materials or iron and steel parts surface, make the metallic surface form one deck with ε-F
2-3N and γ-Fe
4N is main bright layer, and subsurface is a α phase diffusion layer; Polishing is a tectorium of getting rid of the bright layer surface; Material or component are put into oxidized still and fed high-temperature vapor, make after its oxidation and forming the thick fine and close Fe of one deck 2～5 μ m from bright layer top layer
3O
4Zone of oxidation; Bright layer has very high hardness, plays wear-resisting effect, and upper layer Fe
3O
4Its chemical property is very stable, and good solidity to corrosion is arranged.Therefore, have wear resistance, solidity to corrosion, fatigue resistance preferably through the material or the component surface of gas nitrocarburizing and rear oxidation art breading, and reduced frictional coefficient.
Description of drawings
The existing love that Fig. 1 adopts for the present invention is assisted the outside view of the box carbonitriding heat treatment furnace of woods.
Embodiment
After now specific embodiments of the invention being described in.
Embodiment 1
Adopt the piston element that uses in the brake system of car to make subjects in the present embodiment, this piston is made by the 10# steel.
The treatment process steps on piston steel surface is as follows:
(1) at first vacuum cleaned is carried out on piston steel surface, is put in subsequently in the stove to carry out preoxidation under 400 ℃ of temperature.Preoxidation can make workpiece surface form one deck Fe
3O
4, help nitridation process, can play pre-heat effect in addition, reduce workpiece deformation.
(2) piston is put into existing love and assisted the box carbonitriding heat treatment furnace of woods (referring to Fig. 1), in stove, import NH
3, N
2And CO
2Mixed gas; The volume flow ratio of mixed gas is: NH
3: N
2: CO
2=50: 45: 5; Heat temperature raising is to 560 ℃ of temperature of reaction, and the reaction times reaches 4 hours, and reaction finishes the back and cools off with the oil cooling mode.
(3) cooled piston element is polished earlier, remove the bulk material of the bright layer top layer existence on surface; Put into oxidized still subsequently and carry out rear oxidation with 550 ℃ water vapor and handled 1 hour, make the Fe that on bright layer, forms one deck lead or black
3O
4Zone of oxidation; And then carry out stock removal polishing; Finally obtain having high-wearing feature, the piston element on high anti-corrosion surface.
After tested, piston element after treatment, its technical feature is as follows:
The bright layer degree of depth: 10～11 μ m
The zone of oxidation degree of depth: 3 μ m
Surface hardness (the 0.3Kg load down) 〉=180HV
Centre hardness (the 10Kg load down) 〉=100HV
Salt spray corrosion test (48 hours)≤1%
Treated piston element in the present embodiment is expressed higher rotproofness, solidity to corrosion significantly, and has reduced harness and wiped coefficient, has improved sliding capability.
Claims (1)
1. a technique method of treatment for modifying surface of ferrous material is characterized in that adopting gas nitrocarburizing and rear oxidation composite treatment process, and has following technological process and step:
A. at first steel material surface is carried out vacuum cleaned, be put in subsequently in the stove and under 400 ℃ of temperature, carry out preoxidation;
B. then material is put in the box carbonitriding heat treatment furnace of existing love association woods; In stove, import NH
3, N
2And CO
2Mixed gas, heat temperature raising is to 550～570 ℃ of temperature of reaction, the reaction times reaches 4 hours;
Reaction finishes the back and adopts the oil cooling mode to cool off; The volume ratio of mixed gas flow is: NH
3: N
2: CO
2=50: 45: 5;
C. with cooled material, polish earlier, put into oxidized still subsequently, carry out rear oxidation with 500～550 ℃ steam and handled 1 hour, and then polish; Finally make have high-wearing feature, the ferrous materials on high anti-corrosion surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710040663 CN101050517A (en) | 2007-05-15 | 2007-05-15 | Technique method of treatment for modifying surface of ferrous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710040663 CN101050517A (en) | 2007-05-15 | 2007-05-15 | Technique method of treatment for modifying surface of ferrous material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101050517A true CN101050517A (en) | 2007-10-10 |
Family
ID=38782112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710040663 Pending CN101050517A (en) | 2007-05-15 | 2007-05-15 | Technique method of treatment for modifying surface of ferrous material |
Country Status (1)
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|---|---|
| CN (1) | CN101050517A (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198591A (en) * | 2010-03-26 | 2011-09-28 | 东亚大学校产学协力团 | Manufacturing method of head rest support with high strength and light weight |
| US8197199B2 (en) | 2008-06-09 | 2012-06-12 | GM Global Technology Operations LLC | Turbocharger housing with a conversion coating and methods of making the conversion coating |
| CN102732820A (en) * | 2011-04-10 | 2012-10-17 | 上海上大热处理有限公司 | Gas nitrocarburizing method for automobile brake disc |
| CN103805939A (en) * | 2014-01-26 | 2014-05-21 | 重庆迈崴机器有限公司 | Carbonitriding treatment process for transmission gear ring |
| CN103834911A (en) * | 2012-11-27 | 2014-06-04 | 大连经济技术开发区圣洁真空技术开发有限公司 | New workpiece surface low-temperature carbonitriding method |
| CN104603319A (en) * | 2012-06-26 | 2015-05-06 | 法布里佐·卡文娜弗尔维奥 | Process and plant for the anti-oxidising surface treatment of steel parts |
| CN105039900A (en) * | 2015-06-04 | 2015-11-11 | 上海大学 | Ion nitrocarburizing compound layer phase adjustment and control method for SDC 99 steel |
| CN105803466A (en) * | 2016-04-11 | 2016-07-27 | 陆川县南发厨具有限公司 | Cast iron inner container surface rustproof treatment process |
| CN103096172B (en) * | 2013-01-18 | 2016-08-10 | 深圳市同洲电子股份有限公司 | A kind of method and apparatus showing recommendation program |
| CN106011736A (en) * | 2016-06-17 | 2016-10-12 | 陈曦 | Automotive brake disc and surface modification method thereof |
| CN106498337A (en) * | 2016-10-26 | 2017-03-15 | 邢台三厦铸铁有限公司 | The method is surface-treated by cast iron cooker and cast iron cooker |
| CN107447187A (en) * | 2017-08-18 | 2017-12-08 | 无锡市奕珺金属改性技术有限公司 | Handle for dumbbell processing method |
| CN108220872A (en) * | 2018-01-26 | 2018-06-29 | 浙江百达精工股份有限公司 | Vehicle brake calliper piston surface treatment method |
| CN108359928A (en) * | 2018-02-07 | 2018-08-03 | 常州大学 | A kind of composite pretreatment technique improving wind power gear gas carburizing efficiency |
| CN108893706A (en) * | 2018-07-19 | 2018-11-27 | 上海上大热处理有限公司 | Gas nitrocarburizing and after aoxidize composite treatment process |
| CN108950469A (en) * | 2018-07-12 | 2018-12-07 | 通富热处理(昆山)有限公司 | The nitrocarburizing of piston lever of reducer for automobile-oxidation composite treatment process |
| CN109666885A (en) * | 2019-02-28 | 2019-04-23 | 浙江华业塑料机械有限公司 | A kind of ionic nitriding processing method of pull rod wearing layer |
| CN110257761A (en) * | 2019-06-14 | 2019-09-20 | 武汉汇九厨具科技有限公司 | A kind of not viscous iron pan of method of no-coating abrasion-proof antirust and its manufacturing process |
| WO2019205114A1 (en) * | 2018-04-28 | 2019-10-31 | 邢台三厦铸铁有限公司 | Cast iron cookware and method for treating surface thereof |
| CN110819936A (en) * | 2019-10-23 | 2020-02-21 | 广州市机电工业研究所 | Corrosion-resistant soft nitriding process method in ammonia-nitrogen-carbon dioxide atmosphere |
| CN112375895A (en) * | 2020-07-09 | 2021-02-19 | 无锡市海峰海林精密轴承有限公司 | GCr15 steel ball surface layer optimized modification heat treatment process |
| CN114059006A (en) * | 2021-11-03 | 2022-02-18 | 龙工（上海）精工液压有限公司 | Process for controlling tufftriding deformation of plunger pump cylinder body |
| CN115612972A (en) * | 2022-09-27 | 2023-01-17 | 南京丰东热处理工程有限公司 | Steel surface layer thickness controllable nitrogen-containing martensite composite modified layer and process method thereof |
-
2007
- 2007-05-15 CN CN 200710040663 patent/CN101050517A/en active Pending
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8197199B2 (en) | 2008-06-09 | 2012-06-12 | GM Global Technology Operations LLC | Turbocharger housing with a conversion coating and methods of making the conversion coating |
| CN101603456B (en) * | 2008-06-09 | 2012-09-12 | 通用汽车环球科技运作公司 | Turbocharger housing with a conversion coating and methods of making the conversion coating |
| US8556582B2 (en) | 2008-06-09 | 2013-10-15 | GM Global Technology Operations LLC | Turbocharger housing with a conversion coating and methods of making the conversion coating |
| CN102198591A (en) * | 2010-03-26 | 2011-09-28 | 东亚大学校产学协力团 | Manufacturing method of head rest support with high strength and light weight |
| CN102732820B (en) * | 2011-04-10 | 2015-01-21 | 上海上大热处理有限公司 | Gas nitrocarburizing method for automobile brake disc |
| CN102732820A (en) * | 2011-04-10 | 2012-10-17 | 上海上大热处理有限公司 | Gas nitrocarburizing method for automobile brake disc |
| CN104603319B (en) * | 2012-06-26 | 2017-10-10 | 弗尔维奥 法布里佐·卡文娜 | The method and apparatus of the surface oxidation-resistant processing of steel components |
| CN104603319A (en) * | 2012-06-26 | 2015-05-06 | 法布里佐·卡文娜弗尔维奥 | Process and plant for the anti-oxidising surface treatment of steel parts |
| CN103834911A (en) * | 2012-11-27 | 2014-06-04 | 大连经济技术开发区圣洁真空技术开发有限公司 | New workpiece surface low-temperature carbonitriding method |
| CN103096172B (en) * | 2013-01-18 | 2016-08-10 | 深圳市同洲电子股份有限公司 | A kind of method and apparatus showing recommendation program |
| CN103805939A (en) * | 2014-01-26 | 2014-05-21 | 重庆迈崴机器有限公司 | Carbonitriding treatment process for transmission gear ring |
| CN105039900A (en) * | 2015-06-04 | 2015-11-11 | 上海大学 | Ion nitrocarburizing compound layer phase adjustment and control method for SDC 99 steel |
| CN105803466A (en) * | 2016-04-11 | 2016-07-27 | 陆川县南发厨具有限公司 | Cast iron inner container surface rustproof treatment process |
| CN106011736A (en) * | 2016-06-17 | 2016-10-12 | 陈曦 | Automotive brake disc and surface modification method thereof |
| CN106498337A (en) * | 2016-10-26 | 2017-03-15 | 邢台三厦铸铁有限公司 | The method is surface-treated by cast iron cooker and cast iron cooker |
| CN107447187A (en) * | 2017-08-18 | 2017-12-08 | 无锡市奕珺金属改性技术有限公司 | Handle for dumbbell processing method |
| CN108220872A (en) * | 2018-01-26 | 2018-06-29 | 浙江百达精工股份有限公司 | Vehicle brake calliper piston surface treatment method |
| CN108359928A (en) * | 2018-02-07 | 2018-08-03 | 常州大学 | A kind of composite pretreatment technique improving wind power gear gas carburizing efficiency |
| WO2019205114A1 (en) * | 2018-04-28 | 2019-10-31 | 邢台三厦铸铁有限公司 | Cast iron cookware and method for treating surface thereof |
| CN108950469A (en) * | 2018-07-12 | 2018-12-07 | 通富热处理(昆山)有限公司 | The nitrocarburizing of piston lever of reducer for automobile-oxidation composite treatment process |
| CN108893706A (en) * | 2018-07-19 | 2018-11-27 | 上海上大热处理有限公司 | Gas nitrocarburizing and after aoxidize composite treatment process |
| CN109666885A (en) * | 2019-02-28 | 2019-04-23 | 浙江华业塑料机械有限公司 | A kind of ionic nitriding processing method of pull rod wearing layer |
| CN110257761A (en) * | 2019-06-14 | 2019-09-20 | 武汉汇九厨具科技有限公司 | A kind of not viscous iron pan of method of no-coating abrasion-proof antirust and its manufacturing process |
| CN110819936A (en) * | 2019-10-23 | 2020-02-21 | 广州市机电工业研究所 | Corrosion-resistant soft nitriding process method in ammonia-nitrogen-carbon dioxide atmosphere |
| CN110819936B (en) * | 2019-10-23 | 2022-04-15 | 广州市广智机电工业研究所有限公司 | Corrosion-resistant soft nitriding process method in ammonia-nitrogen-carbon dioxide atmosphere |
| CN112375895A (en) * | 2020-07-09 | 2021-02-19 | 无锡市海峰海林精密轴承有限公司 | GCr15 steel ball surface layer optimized modification heat treatment process |
| CN114059006A (en) * | 2021-11-03 | 2022-02-18 | 龙工（上海）精工液压有限公司 | Process for controlling tufftriding deformation of plunger pump cylinder body |
| CN115612972A (en) * | 2022-09-27 | 2023-01-17 | 南京丰东热处理工程有限公司 | Steel surface layer thickness controllable nitrogen-containing martensite composite modified layer and process method thereof |
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