SU548897A1 - Composition for the preparation of press powders - Google Patents
Composition for the preparation of press powdersInfo
- Publication number
- SU548897A1 SU548897A1 SU2107398A SU2107398A SU548897A1 SU 548897 A1 SU548897 A1 SU 548897A1 SU 2107398 A SU2107398 A SU 2107398A SU 2107398 A SU2107398 A SU 2107398A SU 548897 A1 SU548897 A1 SU 548897A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- composition
- preparation
- highly dispersed
- powder
- polyvinyl alcohol
- Prior art date
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Description
ilil
Изобретение относитс к порошковой металлургии и предназначено, в частности, дл приготовлени пресс-порошков ферритов, которые могут быть применены дл изготовлени деталей методом прессовани и спекани . Известна суспензи дл приготовлени пресс-порошков, содержаш,а ферритовый порошок , поливиниловый спирт и воду 1.The invention relates to powder metallurgy and is intended, in particular, for the preparation of press powders of ferrites, which can be applied to the manufacture of parts by the method of pressing and sintering. The known suspension for the preparation of press powders contains, and ferrite powder, polyvinyl alcohol and water 1.
Наиболее близкой к предлагаемой по технической суш,ности и достигаемому результату вл етс композици дл получени гранулированных пресс-порошков протиркой пресс-массы через сито, содержаш,а , вес. %: Ферритовый порошок90Closest to the proposed technical sushi, nosti and the achieved result is the composition for the preparation of granulated press powder by wiping the press mixture through a sieve containing, and, weight. %: Ferrite powder90
Поливиниловый спирт1Polyvinyl alcohol1
Вода9 2Water9 2
Целью изобретени вл етс повышение пластичности пресс-порошка и прочности прессованных изделий.The aim of the invention is to increase the plasticity of the press powder and the strength of the pressed products.
Дл этого предложена композици дл приготовлени пресс-порошков, отличаюш,а с тем, что она дополнительно содержит высокодисперсное веш;ество с удельной поверхностью 40-300 при следующем соотношении компонентов, вес. %: ВысокодисперсноеFor this, a composition is proposed for the preparation of press powders, which is different, and in that it additionally contains highly dispersed powder; with a specific surface area of 40-300 in the following ratio of components, weight. %: Highly dispersed
0,01-9,99 0.01-9.99
веш,ество 1,0-0,5 weight, 1.0-0.5
Поливиниловый спирт 9,0-9,5 Вода Остальное Ферритовый порошокPolyvinyl alcohol 9.0-9.5 Water Rest Ferrite powder
В качестве высокодисперсного вещества используют порошок окиси железа, окиси кремни и окиси алюмини .Powder of iron oxide, silicon oxide and aluminum oxide is used as a highly dispersed substance.
Предлол енную композицию дл приготовлени пресс-порошков получают путем смешивани исходных компонентов.A pre-molded composition for the preparation of press powders is obtained by mixing the starting components.
Пример. 89,7 г ферритового порошка смешивают с 0,3 г порошка окиси железа с удельной поверхностью 50 в баночном смесителе в течение 1 ч. В полученную смесь добавл ют 10 г 10%-ного раствора поливинилового спирта и перемешивают до образовани пасты. Пасту прот1фают через сито, подсушивают до влажности 1-2% и прессуют. Предложенна композици имеет пластичность Кг1л 0,95-0,96, а нагрузка разрушени прессованных изделий достигает 3,5- 4,1 кг.Example. 89.7 g of ferrite powder is mixed with 0.3 g of iron oxide powder with a specific surface 50 in a can mixer for 1 hour. 10 g of a 10% polyvinyl alcohol solution is added to the mixture and stirred until a paste is formed. Pasta is passed through a sieve, dried to a moisture content of 1-2% and pressed. The proposed composition has a plasticity of Cg1l of 0.95-0.96, and the fracture load of the pressed products reaches 3.5-4.1 kg.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2107398A SU548897A1 (en) | 1975-02-13 | 1975-02-13 | Composition for the preparation of press powders |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2107398A SU548897A1 (en) | 1975-02-13 | 1975-02-13 | Composition for the preparation of press powders |
Publications (1)
Publication Number | Publication Date |
---|---|
SU548897A1 true SU548897A1 (en) | 1977-02-28 |
Family
ID=20610808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2107398A SU548897A1 (en) | 1975-02-13 | 1975-02-13 | Composition for the preparation of press powders |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU548897A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4238341A (en) * | 1978-10-18 | 1980-12-09 | Hitachi, Ltd. | Composition of magnetic recording media |
US4444670A (en) * | 1977-09-30 | 1984-04-24 | U.S. Philips Corporation | Method of manufacturing magnetic, plastic-bonded molded bodies |
-
1975
- 1975-02-13 SU SU2107398A patent/SU548897A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4444670A (en) * | 1977-09-30 | 1984-04-24 | U.S. Philips Corporation | Method of manufacturing magnetic, plastic-bonded molded bodies |
US4238341A (en) * | 1978-10-18 | 1980-12-09 | Hitachi, Ltd. | Composition of magnetic recording media |
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