METHOD OF PRODUCING PARTS FROM THERMOSETTING THERMOPLASTIC MATERIALS WITH COLD FLOW PROPERTY Russian patent published in 2011 - IPC B29C43/10 B29C67/04 

Abstract RU 2414349 C2

FIELD: process engineering.

SUBSTANCE: invention relates to production of parts from polymer materials. Proposed method comprises moulding the part from powder material with preset geometrical sizes, sintering produced billet, curing and cooling it, placing sintered billet in the mould. Then, said billet is compressed in injection mould. Note here that mould working elements act on the material with force exceeding, at least, the threshold of regular of flow of material. Then, mould is opened to remove sintered billet by mould extractors. This allows notable decrease in mould costs and reduced geometrical sizes. Low friction factor or fluoroplastic allows pressing articles out of the mould without using, so-called, pattern tapers.

EFFECT: reduced consumption of costly material and costs.

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RU 2 414 349 C2

Authors

Zotin Viktor Germanovich

Dates

2011-03-20Published

2008-01-29Filed