RU2007146285A - METHOD OF NITRATION OF STEEL PRODUCTS IN GAS-MEDIA - Google Patents
METHOD OF NITRATION OF STEEL PRODUCTS IN GAS-MEDIA Download PDFInfo
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- RU2007146285A RU2007146285A RU2007146285/02A RU2007146285A RU2007146285A RU 2007146285 A RU2007146285 A RU 2007146285A RU 2007146285/02 A RU2007146285/02 A RU 2007146285/02A RU 2007146285 A RU2007146285 A RU 2007146285A RU 2007146285 A RU2007146285 A RU 2007146285A
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Abstract
Способ азотирования стальных изделий в газообразных средах, заключающийся в нагреве изделий до заданной температуры насыщения в интервале 450…780°С в газообразной атмосфере с последующей раздельной выдержкой в насыщающих газообразных средах, в том числе в атмосфере воздуха, отличающийся тем, что последующую после нагрева выдержку осуществляют циклами, попеременно проводя в каждом цикле выдержку первоначально в атмосфере воздуха, а затем в атмосфере аммиака, с формированием в результате на поверхности изделий многослойной структуры, состоящей из чередующихся между собой слоев из нитридных и оксидных фаз металлов.The method of nitriding steel products in gaseous media, which consists in heating the products to a predetermined saturation temperature in the range of 450 ... 780 ° C in a gaseous atmosphere, followed by separate exposure to saturating gaseous media, including in an air atmosphere, characterized in that the subsequent exposure after heating they are carried out in cycles, alternating in each cycle, holding initially in an atmosphere of air, and then in an atmosphere of ammonia, with the formation of a multilayer structure on the surface of the products, with toyaschey of alternating layers of a nitride and metal oxide phases.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2007146285/02A RU2367716C1 (en) | 2007-12-17 | 2007-12-17 | Processing method of steel products in gaseous medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2007146285/02A RU2367716C1 (en) | 2007-12-17 | 2007-12-17 | Processing method of steel products in gaseous medium |
Publications (2)
Publication Number | Publication Date |
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RU2007146285A true RU2007146285A (en) | 2009-06-27 |
RU2367716C1 RU2367716C1 (en) | 2009-09-20 |
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RU2007146285/02A RU2367716C1 (en) | 2007-12-17 | 2007-12-17 | Processing method of steel products in gaseous medium |
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RU (1) | RU2367716C1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2519356C2 (en) * | 2012-05-24 | 2014-06-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Московский автомобильно-дорожный государственный технический университет (МАДИ)" | Method of cyclic gas nitration of steel dies for hot forming |
RU2522872C2 (en) * | 2012-06-13 | 2014-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Московский государственный технический университет имени Н.Э. Баумана" (МГТУ им. Н.Э. Баумана) | Nitration of machine parts with production of nanostructured surface ply and ply composition |
RU2614292C1 (en) * | 2015-12-24 | 2017-03-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский автомобильно-дорожный государственный технический университет (МАДИ)" | Method of cyclic gas nitration of structural alloy steel parts |
RU2756547C1 (en) * | 2020-09-24 | 2021-10-01 | Общество с ограниченной ответственностью "НПП "НИТРИД" (ООО "НПП "Нитрид") | Method for nitriding corrosion-resistant and high-alloy steels |
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- 2007-12-17 RU RU2007146285/02A patent/RU2367716C1/en not_active IP Right Cessation
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Publication number | Publication date |
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RU2367716C1 (en) | 2009-09-20 |
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Effective date: 20171218 |