SU105665A1 - Protective atmosphere for heat treatment of products from nickel-based superalloys - Google Patents
Protective atmosphere for heat treatment of products from nickel-based superalloysInfo
- Publication number
- SU105665A1 SU105665A1 SU454422A SU454422A SU105665A1 SU 105665 A1 SU105665 A1 SU 105665A1 SU 454422 A SU454422 A SU 454422A SU 454422 A SU454422 A SU 454422A SU 105665 A1 SU105665 A1 SU 105665A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- products
- protective atmosphere
- heat treatment
- nickel
- based superalloys
- Prior art date
Links
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- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Furnace Details (AREA)
Description
Предметом изобретени вл етс защитна атмосфера дл термической обработки изделий из сплавов типа сплава ЭЙ 437, состо ща из продуктов почти полного сгорани природных газов.The subject of the invention is a protective atmosphere for the heat treatment of products made of alloys of the alloy AY 437, consisting of products of almost complete combustion of natural gases.
Известно применение контролируемой атмосферы в печах с использованием диссоциации аммиака. Известно также применение защитного газа из аммиака с частичны: 1 дожиганием водорода и осушкой газа.It is known to use controlled atmosphere in furnaces using ammonia dissociation. It is also known the use of protective gas from ammonia with partial: 1 afterburning of hydrogen and drying of gas.
Описываема защитна атмосфера отличаетс от нзвестны.х тем, что ее состав подобран таким образом, что его использование обеспечивает уменьшение толщины измененного сло на издели х при их охлаждении и старении.The described protective atmosphere differs from the known ones in that its composition is selected in such a way that its use reduces the thickness of the modified layer on the products during their cooling and aging.
Защитна атмосфера состоит из продуктов почти полного сгорани высококалорийного природного газа (метана, пропанобутановой смеси и др.), имеющего следующий состав: CO2.0,l-io №.3,5% (отношение окиси углерода к азоту 1,15), остальное - азот. Точка росыThe protective atmosphere consists of products of almost complete combustion of high-calorific natural gas (methane, propane-butane mixture, etc.), having the following composition: CO2.0, l-io No.3.5% (carbon monoxide to nitrogen ratio 1.15), the rest - nitrogen. Dew point
защитной атмосферы должна быть не менее минус 50.protective atmosphere must be at least minus 50.
Нейтральна защитна атлюсфера , полученна от дочхи полного сгорани высококалорийных газов, вводитс в рабочую камеру и камеру охлаждени печи при остыванни изделнй после нагрева их под закалку и во врем старени . В результате уменьшаетс толщгига измененного сло , удал емого шлифование или другими видами обработки.A neutral protective atlusphere, obtained from the daughter of complete combustion of high-calorific gases, is introduced into the working chamber and the cooling chamber of the furnace during the cooling of the parts after heating them during quenching and during aging. As a result, the thickness of the modified layer, removable grinding or other types of processing is reduced.
Предмет изо б р е т с и и Subject from and to and
Защитна атмосфера дл тердн ческой обработки изделий из жаропрочных сплавов на никелевой основе , отличающа с тем. что с целью уменьшени величины измененного сло на нздели х прн их старении и охлаждении, защитна атмосфера состоит из продуктов почти полного сгорани природных газов: углекислого газа не более 0,10%, окиси углерода не более 4%, водорода не более 3,5% и азот- остальное, при точке росы защитной атмосферы не менее 50.A protective atmosphere for thermally treating products made from heat-resistant nickel-based alloys, characterized in that. that in order to reduce the size of the modified layer on the air of aging and cooling, the protective atmosphere consists of products of almost complete combustion of natural gases: carbon dioxide not more than 0.10%, carbon monoxide not more than 4%, hydrogen not more than 3.5% and nitrogen - the rest, with a dew point of the protective atmosphere of at least 50.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU454422A SU105665A1 (en) | 1956-02-01 | 1956-02-01 | Protective atmosphere for heat treatment of products from nickel-based superalloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU454422A SU105665A1 (en) | 1956-02-01 | 1956-02-01 | Protective atmosphere for heat treatment of products from nickel-based superalloys |
Publications (1)
Publication Number | Publication Date |
---|---|
SU105665A1 true SU105665A1 (en) | 1956-11-30 |
Family
ID=48379046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU454422A SU105665A1 (en) | 1956-02-01 | 1956-02-01 | Protective atmosphere for heat treatment of products from nickel-based superalloys |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU105665A1 (en) |
-
1956
- 1956-02-01 SU SU454422A patent/SU105665A1/en active
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