SU884856A1 - Method of producing articles from tungstem-free hard alloys - Google Patents
Method of producing articles from tungstem-free hard alloys Download PDFInfo
- Publication number
- SU884856A1 SU884856A1 SU802864041A SU2864041A SU884856A1 SU 884856 A1 SU884856 A1 SU 884856A1 SU 802864041 A SU802864041 A SU 802864041A SU 2864041 A SU2864041 A SU 2864041A SU 884856 A1 SU884856 A1 SU 884856A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- coating
- marshalite
- hot
- pressure
- billet
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Description
(54) СПОСОБ ПОЛУЧЕНИЯ ИЗДЕЛИЙ ИЗ БЕЗВОЛЬФРМЮВЫХ ТВЕРдаК С1ШАВОВ(54) METHOD FOR OBTAINING PRODUCTS FROM UNLESS VOLUME SOLID SCREENS
II
Изобретение относитс к порошковой металлургии, в частности к способам получени изделий из металличесйих порошков, и может быть использовано при изготовлении инструментов из твердых сплавов дл высадки, вырубки, штамповки листовой и объемной, дл волочени и т.д. The invention relates to powder metallurgy, in particular, to methods for producing articles from metal powders, and can be used in the manufacture of tools from hard alloys for planting, cutting, sheet and bulk stamping, for drawing, etc.
Известен способ получени изделий из твердых сплавов путем формовани прессовки из твердого сплава, помещени прессовки в контейнер с порис той средой, нагрев и гор чее прессование til.A known method of producing products from hard alloys by molding a press out of a hard alloy, placing the press in a container with porous media, heating and hot pressing til.
Недостатком известного способа вл етс то, что в процессе гор чего прессовани происходит припекание Пористой среды к поверхности деформируемой заготовки, удаление которой представл ет трудоемкий процесс.The disadvantage of this method is that during the hot pressing process, porous medium is agglomerated to the surface of the deformable workpiece, the removal of which is a laborious process.
Наиболее близким к предлагаемому по технической сущности и достигаемому эффекту вл етс способ получени изделий из твердых сплавов, заключающийс в прессовании изделий и дальнейшем их формовании гор чим изостатическнм прессованием в засыпке Г 21.The closest to the proposed technical essence and the achieved effect is the method of obtaining products from hard alloys, which consists in pressing the products and further forming them by hot isostatic pressing in backfilling G 21.
Недостатком известного способа вл етс то, что при получении 11зделий из безвольфрамовых твердых сплавов происходит взаимодействие твердого сплава и засыпки, в результате чего на изделии образуетс припекшийс слой уплотненной засыпки, удаление которого вл етс трудоемкой операцией . Кроме того, вследствие разности коэффициентов термического расширени материала засыпки и сплава при механическом удалении припекшегос сло на поверхности издели образуютс трещины.A disadvantage of the known method is that when producing 11 products of tungsten-free hard alloys, there is interaction between the hard alloy and backfill, as a result of which a fused layer of compacted backfill is formed on the product, the removal of which is a labor-intensive operation. In addition, due to the difference in thermal expansion coefficients of the backfill material and the alloy during the mechanical removal of the surface layer, cracks are formed on the surface of the product.
Цель изобретени - устранение припекани материала засыпки и трещннообразо ани .The purpose of the invention is to eliminate the melting of the backfill material and the cracked ani.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802864041A SU884856A1 (en) | 1980-01-03 | 1980-01-03 | Method of producing articles from tungstem-free hard alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802864041A SU884856A1 (en) | 1980-01-03 | 1980-01-03 | Method of producing articles from tungstem-free hard alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
SU884856A1 true SU884856A1 (en) | 1981-11-30 |
Family
ID=20869825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU802864041A SU884856A1 (en) | 1980-01-03 | 1980-01-03 | Method of producing articles from tungstem-free hard alloys |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU884856A1 (en) |
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1980
- 1980-01-03 SU SU802864041A patent/SU884856A1/en active
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