CN103834904A - Anti-corrosion nitriding method for surface of workpiece - Google Patents
Anti-corrosion nitriding method for surface of workpiece Download PDFInfo
- Publication number
- CN103834904A CN103834904A CN201210491545.8A CN201210491545A CN103834904A CN 103834904 A CN103834904 A CN 103834904A CN 201210491545 A CN201210491545 A CN 201210491545A CN 103834904 A CN103834904 A CN 103834904A
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- China
- Prior art keywords
- workpiece
- nitriding
- corrosion
- furnace
- nitriding method
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- 238000005121 nitriding Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005260 corrosion Methods 0.000 title abstract description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 230000002421 anti-septic effect Effects 0.000 description 1
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- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses an anti-corrosion nitriding method for the surface of a workpiece and relates to a nitriding method for the surface of the workpiece. The anti-corrosion nitriding method comprises the following steps of: (a) cleaning: cleaning the workpiece and adopting a method for removing oil stain by using gas to clean; (b) installing the workpiece: installing the workpiece in a nitriding furnace; (c) warming: warning and preheating the nitriding furnace to 550 DEG C; (d) nitriding: introducing ammonia gas into the furnace, wherein the decomposition rate of ammonia gas is 30-80%, the temperature in the furnace is maintained to 550-800 DEG C, and the insulating time is 1-4 hours; and (e) cooling: reducing the temperature, and carrying out low-temperature cooling. The anti-corrosion nitriding method disclosed by the invention has the characteristics that the process is novel, the method is simple, the anti-corrosion function of the surface of the workpiece is improved and the like. Therefore, the anti-corrosion nitriding method belongs to a novel anti-corrosion nitriding method for the surface of the workpiece, which integrates economy and practicability.
Description
Technical field
Workpiece surface for anticorrosion nitriding method of the present invention, relates to a kind of workpiece surface nitriding method.
Background technology
Workpiece surface nitriding is at present all the surface strength in order to increase workpiece, seldom has anti-corrosion function.For existing problem in above-mentioned prior art, a kind of novel workpiece surface for anticorrosion nitriding method of research and design, is very necessary thereby overcome existing problem in prior art.
Summary of the invention
In view of existing problem in above-mentioned prior art, the object of the invention is a kind of novel workpiece surface for anticorrosion nitriding method of research and design.In order to improve the antiseptic property of workpiece.
Technical solution of the present invention is achieved in that
Workpiece surface for anticorrosion nitriding method of the present invention, its processing method is:
A, a, cleaning: workpiece is cleaned, adopt the method that gas deoils dirty to clean;
B, piece installing: workpiece is loaded in nitriding furnace;
C, heat: to nitriding furnace, the preheating 550 of heating is spent;
D, nitriding: in stove, be filled with ammonia, the rate of decomposition of ammonia is 30-80%, in stove, temperature remains on 550-800 degree, and soaking time is 1-4 hour;
E, cooling: cooling, subcooling.
Advantage of the present invention is apparent, is mainly manifested in:
Nitriding method of the present invention has improved the anti-corrosion function of workpiece surface.
The present invention has the advantages such as new technology, method are simple, the anti-corrosion function that improves workpiece surface, and it puts goods on the market in enormous quantities and will produce positive social benefit and significant economic benefit.
Embodiment
Specific embodiment of the invention, its processing method is:
A, a, cleaning: workpiece is cleaned, adopt the method that gas deoils dirty to clean;
B, piece installing: workpiece is loaded in nitriding furnace;
C, heat: to nitriding furnace, the preheating 550 of heating is spent;
D, nitriding: in stove, be filled with ammonia, the rate of decomposition of ammonia is 30-80%, in stove, temperature remains on 550-800 degree, and soaking time is 1-4 hour;
E, cooling: cooling, subcooling.The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; allly be familiar with those skilled in the art in technical scope disclosed by the invention, within being equal to and replacing or change protection scope of the present invention all should be encompassed according to technical scheme of the present invention and design of the present invention thereof.
Claims (1)
1. a workpiece surface for anticorrosion nitriding method, its processing method is:
A, cleaning: workpiece is cleaned, adopt the method that gas deoils dirty to clean;
B, piece installing: workpiece is loaded in nitriding furnace;
C, heat: to nitriding furnace, the preheating 550 of heating is spent;
D, nitriding: in stove, be filled with ammonia, the rate of decomposition of ammonia is 30-80%, in stove, temperature remains on 550-800 degree, and soaking time is 1-4 hour;
E, cooling: cooling, subcooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491545.8A CN103834904A (en) | 2012-11-27 | 2012-11-27 | Anti-corrosion nitriding method for surface of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491545.8A CN103834904A (en) | 2012-11-27 | 2012-11-27 | Anti-corrosion nitriding method for surface of workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103834904A true CN103834904A (en) | 2014-06-04 |
Family
ID=50798792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210491545.8A Pending CN103834904A (en) | 2012-11-27 | 2012-11-27 | Anti-corrosion nitriding method for surface of workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103834904A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737150A (en) * | 2022-04-14 | 2022-07-12 | 成都航利航空科技有限责任公司 | Nitriding process method of 16Cr3NiWMoVNbE |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772943A (en) * | 2005-09-29 | 2006-05-17 | 上海汽轮机有限公司 | Nitriding heat treatment process of high temperature alloy material |
| CN101497980A (en) * | 2008-02-01 | 2009-08-05 | 远立贤 | Cyclic heating rapid nitridation catalytic cementation process |
| CN101649441A (en) * | 2008-08-12 | 2010-02-17 | 贵州红林机械有限公司 | Process method for nitriding austenitic stainless steel material |
| CN102230150A (en) * | 2011-06-23 | 2011-11-02 | 河南中原吉凯恩气缸套有限公司 | Surface treatment process of cast iron cylinder jacket |
| CN102392261A (en) * | 2011-10-24 | 2012-03-28 | 上海涌真机械有限公司 | Double-vacuum annealing device and process for improving magnetic property of soft magnetic material |
-
2012
- 2012-11-27 CN CN201210491545.8A patent/CN103834904A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772943A (en) * | 2005-09-29 | 2006-05-17 | 上海汽轮机有限公司 | Nitriding heat treatment process of high temperature alloy material |
| CN101497980A (en) * | 2008-02-01 | 2009-08-05 | 远立贤 | Cyclic heating rapid nitridation catalytic cementation process |
| CN101649441A (en) * | 2008-08-12 | 2010-02-17 | 贵州红林机械有限公司 | Process method for nitriding austenitic stainless steel material |
| CN102230150A (en) * | 2011-06-23 | 2011-11-02 | 河南中原吉凯恩气缸套有限公司 | Surface treatment process of cast iron cylinder jacket |
| CN102392261A (en) * | 2011-10-24 | 2012-03-28 | 上海涌真机械有限公司 | Double-vacuum annealing device and process for improving magnetic property of soft magnetic material |
Non-Patent Citations (1)
| Title |
|---|
| 鞠慧: ""H13钢回火处理及气体渗氮工艺优化的研究"", 《中国优秀硕士学位论文全文数据库 工程科技1辑 》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737150A (en) * | 2022-04-14 | 2022-07-12 | 成都航利航空科技有限责任公司 | Nitriding process method of 16Cr3NiWMoVNbE |
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| 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: 20140604 |