SU120524A1 - Nitriding of high-speed tools with ammonia - Google Patents

Nitriding of high-speed tools with ammonia

Info

Publication number
SU120524A1
SU120524A1 SU360012A SU360012A SU120524A1 SU 120524 A1 SU120524 A1 SU 120524A1 SU 360012 A SU360012 A SU 360012A SU 360012 A SU360012 A SU 360012A SU 120524 A1 SU120524 A1 SU 120524A1
Authority
SU
USSR - Soviet Union
Prior art keywords
ammonia
nitriding
speed tools
tool
nitrogen
Prior art date
Application number
SU360012A
Other languages
Russian (ru)
Inventor
И.С. Кирин
Original Assignee
И.С. Кирин
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by И.С. Кирин filed Critical И.С. Кирин
Priority to SU360012A priority Critical patent/SU120524A1/en
Application granted granted Critical
Publication of SU120524A1 publication Critical patent/SU120524A1/en

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  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Articles (AREA)

Description

СПОСОБ АЗОТИРОВАНИЯ БЫСТРОРЕЖУЩЕГО ИНСТРУМЕНТА АММИАКОМMETHOD OF NITRATION OF QUICK-CUTTING TOOL AMMIAKOM

За влено 2 сент бр.  1947 г. ча Л 360(42/22 Опубликовано в «Б|о.1лотенс и:юбретений:;. № 12 за 1959 г.Submitted September 2, br. 1947, cha L 360 (42/22 Published in "B | o.1lotens and: celebrations:;. No. 12 for 1959

Известные способы обработки быстрорежущего инструмента, повышающие его эффективность, предусматривают одновременное насыщение его иоверхностей азотом и углеродом. От воздействи  углерода при этом образуетс  весьма хрунка  карбонитридна  корочка, ухудща оща  режущие свойства инструмента.Known methods of processing high-speed tool, increasing its efficiency, provide for the simultaneous saturation of its surfaces with nitrogen and carbon. From carbon exposure, a very carbonated nitrile crust is formed, worsening the cutting properties of the tool.

Описываемый способ азотировани  быстрорежущего 1 нструмента аммиаком увеличивает стойкость инструмента и устран ет выкрашивание режущих кромок.The described nitriding method of a high-speed 1 tool with ammonia increases tool life and eliminates chipping of the cutting edges.

Способ азотировани  заключаетс  в следующем.The method of nitriding is as follows.

Сначала инструмент примерно на 30 мин помещают в чистый аммиак , зате.м в течение часа выдерживают в аммиаке, разбавленном азото .м в соотношении 70% азота и 30% аммиака, при температуре 520540° с последующим охлаждением инструмента в чистом азоте. Глубина сло  регулируетс  выдержкой.First, the instrument is placed in pure ammonia for about 30 minutes, then it is kept in ammonia, diluted with nitrogen in a ratio of 70% nitrogen and 30% ammonia for an hour, at a temperature of 520540 ° C, followed by cooling the instrument in pure nitrogen. The depth of the layer is controlled by exposure.

Азотированный таким образом инстру.мент ириобретает увеличение стойкости на 500-800% при твердости 1100 - 1200 единиц по Виккерсу.Tools so nitrated and thus acquire an increase in resistance by 500-800% with a hardness of 1100 - 1200 Vickers units.

Азотирование может быть совмещено с отпуском.Nitriding can be combined with the release.

Предмет изобретени Subject invention

Способ азотировани  быстрорежущего инструмента аммиаком, отличающийс  тем, что после кратковременного, например получасового , азотировани  инструмента в чистом аммиаке, последний разбавл ют азотом, а охлаждение ведут в атмосфере азота.The nitriding method of a fast-cutting tool with ammonia, characterized in that after short-term, for example half an hour, nitriding the tool in pure ammonia, the latter is diluted with nitrogen, and cooling is carried out in a nitrogen atmosphere.

И. С. КиринI.S. Kirin

SU360012A 1947-09-12 1947-09-12 Nitriding of high-speed tools with ammonia SU120524A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU360012A SU120524A1 (en) 1947-09-12 1947-09-12 Nitriding of high-speed tools with ammonia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU360012A SU120524A1 (en) 1947-09-12 1947-09-12 Nitriding of high-speed tools with ammonia

Publications (1)

Publication Number Publication Date
SU120524A1 true SU120524A1 (en) 1958-11-30

Family

ID=48392385

Family Applications (1)

Application Number Title Priority Date Filing Date
SU360012A SU120524A1 (en) 1947-09-12 1947-09-12 Nitriding of high-speed tools with ammonia

Country Status (1)

Country Link
SU (1) SU120524A1 (en)

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