PLASTICIZING AGENT REMOVING METHOD Russian patent published in 2006 - IPC B22F3/02 C04B35/638 

Abstract RU 2273547 C1

FIELD: powder metallurgy, namely processes for removing plasticizing agent.

SUBSTANCE: method for capillary type removing of binder comprises steps of preparing mixture, mixing it with plasticizing agent, pressing prepared mixture and heating it for removing plasticizing agent. Before pressing, highly volatile liquid is added to mixture in quantity consisting 0.4 - 0.6 of pore volume of pressed material for dissolving plasticizing agent. Heating is realized before sintering until volatile liquid separation is ended and plasticizing agent appears on surface of pressed material.

EFFECT: shortened time period for removing plasticizing agent, improved quality of articles.

3 cl, 1 dwg, 2 ex

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RU 2 273 547 C1

Authors

Zvonetskij Vladimir Ivanovich

Lopatin Vladimir Jur'Evich

Morokov Valerij Ivanovich

Shumenko Vladimir Vladimirovich

Shumenko Vladimir Nikolaevich

Dates

2006-04-10Published

2004-11-18Filed