RU2012121436A - METHOD OF GAS NITROGEN FOR STAMPS FROM STEELS FOR HOT DEFORMATION - Google Patents
METHOD OF GAS NITROGEN FOR STAMPS FROM STEELS FOR HOT DEFORMATION Download PDFInfo
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- RU2012121436A RU2012121436A RU2012121436/02A RU2012121436A RU2012121436A RU 2012121436 A RU2012121436 A RU 2012121436A RU 2012121436/02 A RU2012121436/02 A RU 2012121436/02A RU 2012121436 A RU2012121436 A RU 2012121436A RU 2012121436 A RU2012121436 A RU 2012121436A
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- gas nitriding
- ammonia
- steels
- formation
- air
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Abstract
Способ газового азотирования штампов из сталей для горячего деформирования, заключающийся в процессе циклического газового азотирования с использованием воздуха и аммиака, включающего нагрев до заданной температуры, выдержку и последующее охлаждение вместе с печью, отличающийся тем, что процесс циклического газового азотирования ведут при нагреве в интервале температур Т=550÷590°С при попеременной подаче воздуха и аммиака в заданных временных соотношениях в цикле с образованием в течение каждого цикла паров воды, участвующих в создании на поверхности штампов электрически заряженных каталитических оксидных пленок, способствующих в результате формированию структуры, состоящей из слоя нанопорошка и монолита металлокерамик.The method of gas nitriding of dies from steels for hot deformation, which consists in a cyclic gas nitriding using air and ammonia, including heating to a predetermined temperature, holding and subsequent cooling together with the furnace, characterized in that the cyclic gas nitriding is carried out during heating in the temperature range Т = 550 ÷ 590 ° С at alternating supply of air and ammonia in predetermined time ratios in the cycle with the formation of water vapor during each cycle involved in the creation of on the surface of dies electrically charged catalytic oxide films as a result of promoting the formation of a structure consisting of a layer of nanopowder monolith and cermets.
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RU2012121436/02A RU2519356C2 (en) | 2012-05-24 | 2012-05-24 | Method of cyclic gas nitration of steel dies for hot forming |
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RU2012121436/02A RU2519356C2 (en) | 2012-05-24 | 2012-05-24 | Method of cyclic gas nitration of steel dies for hot forming |
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RU2012121436A true RU2012121436A (en) | 2013-11-27 |
RU2519356C2 RU2519356C2 (en) | 2014-06-10 |
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RU2012121436/02A RU2519356C2 (en) | 2012-05-24 | 2012-05-24 | Method of cyclic gas nitration of steel dies for hot forming |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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SU1765251A1 (en) * | 1991-01-30 | 1992-09-30 | Московский Автомобильно-Дорожный Институт | Method of chemical-thermal treatment of steel articles |
DE50001540D1 (en) * | 2000-02-04 | 2003-04-30 | Ipsen Int Gmbh | Process for nitriding and / or nitrocarburizing higher alloy steels |
RU2367715C2 (en) * | 2007-11-23 | 2009-09-20 | Государственное образовательное учреждение высшего профессионального образования Московский автомобильно-дорожный институт (Государственный технический университет) | Nitriding method of products made of allyed steel |
RU2367716C1 (en) * | 2007-12-17 | 2009-09-20 | Государственное образовательное учреждение высшего профессионального образования Московский автомобильно-дорожный институт (Государственный технический университет) | Processing method of steel products in gaseous medium |
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2012
- 2012-05-24 RU RU2012121436/02A patent/RU2519356C2/en not_active IP Right Cessation
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RU2519356C2 (en) | 2014-06-10 |
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Effective date: 20180525 |