title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð·Ð°Ð³Ð¾ÑÐ¾Ð²Ð¾Ðº Ð¸Ð· Ð¼ÐµÐ´Ð½ÑÑ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² Ð´Ð»Ñ ÑÐ°Ð²Ð½Ð¾ÐºÐ°Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÐ³Ð»Ð¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Study of the processes of forming billets of copper powders for equal channel angular pressing
Creators: name: ÐÐ¾Ð»ÐµÑÐ°ÐµÐ², ÐÐ½ÑÐ¾Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð¿opoÑÐºoÐ²aÑ Ð¼eÑaÐ»Ð»pÑÐ³Ð¸Ñ
Ð¼eÐ´Ñ
ÑexÐ½oÐ»oÐ³Ð¸ÑeÐºÐ¸Ð¹ peÐ¶Ð¸Ð¼
ÑopÐ¼oÐ²aÐ½Ð¸e
Ð¿peccoÐ²aÐ½Ð¸e
ÑÐ¿Ð»oÑÐ½eÐ½Ð¸e
cÐ¿eÐºaÐ½Ð¸e
paÐ²Ð½oÐºaÐ½aÐ»ÑÐ½oe ÑÐ³Ð»oÐ²oe Ð¿peccoÐ²aÐ½Ð¸e
powder metallurgy
copper
technological mode
forming
pressing
sealing
sintering
equal channel angular pressing

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description: This work is devoted to the study of the processes of forming copper billets for equal channel angular pressing. Tasks that were solved during the study:
1. Study of compaction of copper powders.
2. Development of sintering modes for copper billets
3. Analysis of the process of sintering billets, carried out in different modes.
4. Statistical processing of the results obtained.
5. Selection of heat treatment mode for manufacturing samples for RCU.
The work was carried out on the basis of Peter The great Polytechnic Uni-versity and JSC "plant " CompositeÂ», where the forming and sintering of blanks made of PMS-1 copper powder at temperatures of 850 and 950 Â°C. Cooling was carried out in air, in the oven and in water. Calculations of shrinkage, density, porosity, and mass loss after sintering were performed, and the dependences of density, porosity, and shrinkage on the parameters of pressing and sintering were con-structed based on the obtained data.
As a result, a rational sintering mode was selected, which determines the properties and parameters of copper billets for equalchannel angular pressing.