SU576160A1 - Method of manufacturing sintered articles from alloys - Google Patents
Method of manufacturing sintered articles from alloysInfo
- Publication number
- SU576160A1 SU576160A1 SU7402079514A SU2079514A SU576160A1 SU 576160 A1 SU576160 A1 SU 576160A1 SU 7402079514 A SU7402079514 A SU 7402079514A SU 2079514 A SU2079514 A SU 2079514A SU 576160 A1 SU576160 A1 SU 576160A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- deformation
- alloys
- manufacturing sintered
- sintering
- carried out
- Prior art date
Links
Description
1one
Изобретение относитс к области порошковой металлургии.This invention relates to the field of powder metallurgy.
Известен способ изготовлени снеченных изделий из легированных сплавов, заключающийс в приготовлении порошка сплава, прессовании заготовок, гор чем деформировании и термической обработке 1.A known method of manufacturing alloyed products from doped alloys is the preparation of alloy powder, pressing blanks, hot deformation and heat treatment 1.
Недостатком известного способа вл етс низка деформируемость материала, поскольку в качестве исходного норошка используетс сложнолегироваиный снлав, обладаюш,ий низкой пластичностью.The disadvantage of this method is the low deformability of the material, since the alloyed alloy, which has a low ductility, is used as the initial mold.
Наиболее близким к иредлагаемому по технической суш,ности и достигаемому эффекту вл етс способ изготовлени спеченных изделий из легированных сплавов, включаюш,ий смешивание порошков компонентов сплава, прессованно, снеканне нри температуре гомогенизации силава и деформацию сиеченной заготовки 2. Недостатком этого способа вл етс низка пластичность материала на стадии деформации, что снижает качество изделий и ограничивает возможности нримеиеп1Ш способа. Указапные недостатки св заны с образованием твердого раствора компонентов или интерметаллидпых фаз на стадии сиекани , осупдествл емой при температуре гомогенизации , что снижает пластичность материала и его деформируемость.The closest to the technical sushi limit, which is achieved and the effect achieved is a method of manufacturing sintered products from doped alloys, including mixing the powders of the alloy components, pressing, snacking the silav homogenization temperature and deformation of the sintered workpiece 2. The disadvantage of this method is low ductility material at the stage of deformation, which reduces the quality of products and limits the possibilities of the process. These defects are associated with the formation of a solid solution of the components or intermetallic phases at the siekan stage, which is precipitated at the homogenization temperature, which reduces the ductility of the material and its deformability.
В цел х повышени пластичности материа .па при деформировании по предлагаемому способу после деформации провод т гомогенизирующий отжиг, а спекание и деформац Ю осуществл ют при температуре ниже температуры гомогенизирующего отжига.In order to increase the plasticity of the material, during the deformation of the proposed method, after deformation, homogenizing annealing is carried out, and sintering and deformation of the oxide is carried out at a temperature below the temperature of the homogenizing annealing.
Операции спекани и деформации при температуре ниже температуры гомогенизации сплава позвол ют повысить пластичность материала на Стаднн деформации и нолучить дефор.мнрованные издели из сплавов, в обычных услови х не поддающихс деформированию .The sintering and deformation operations at temperatures below the homogenization temperature of the alloy increase the plasticity of the material by herd deformation and obtain the deformed products made of alloys that cannot be deformed under normal conditions.
Пример. Никелевый порошок, полученный химическим осаждением с последующим восстановлением и содержании 1,6 вес. % окиси иттри , смеишвают с порошком молибдена и хрома в расчете па сплав состава, вес. %: Сг 15; Мо 8; аОд 1,2; Ni остальпое. Смесь порошков прессуют D заготовки при удлтьном давлепнн 6 т/см- и С11екают в атмосфере водорода при . После спекани заготовки зачехл ют в оболочки из малоуглеродисто стали, экструдируют нри 1000°С и прокатывают при со степепью деформаци. 90%. После химического стравливапи оболочек провод т гомогенизирующий отжиг при .Example. Nickel powder obtained by chemical precipitation, followed by recovery and the content of 1.6 weight. % yttria, mixed with molybdenum powder and chromium in the calculation of PA alloy composition, weight. %: Cr 15; Mo 8; about 1.2; Ni rest. The mixture of powders is pressed into D blanks at an elongation pressure of 6 t / cm and C11 is heated in an atmosphere of hydrogen at. After sintering, the blanks are covered with sheaths of mild steel, extruded at 1000 ° C and deformed with rolling. 90%. After chemical etching of the shells, homogenizing annealing is carried out at.
Механические свойства изделий в виде листов толщиной 1 мм, иолученных из легированного сплава, приведены в таблпце.The mechanical properties of products in the form of 1 mm thick sheets, obtained from a doped alloy, are listed in the table.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7402079514A SU576160A1 (en) | 1974-12-02 | 1974-12-02 | Method of manufacturing sintered articles from alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7402079514A SU576160A1 (en) | 1974-12-02 | 1974-12-02 | Method of manufacturing sintered articles from alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU576160A1 true SU576160A1 (en) | 1977-10-15 |
Family
ID=20602069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU7402079514A SU576160A1 (en) | 1974-12-02 | 1974-12-02 | Method of manufacturing sintered articles from alloys |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU576160A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4336066A (en) * | 1979-05-25 | 1982-06-22 | Nippon Gakki Seizo Kabushiki Kaisha | Method for manufacturing components for magnetic heads of increased abrasion resistance |
-
1974
- 1974-12-02 SU SU7402079514A patent/SU576160A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4336066A (en) * | 1979-05-25 | 1982-06-22 | Nippon Gakki Seizo Kabushiki Kaisha | Method for manufacturing components for magnetic heads of increased abrasion resistance |
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