FIELD: process engineering.
SUBSTANCE: proposed invention can be used in machine building for fabricating articles based on extremely-macromolecular polyethylene of varying purpose. Proposed method comprises preliminary cold forming from initial extremely-macromolecular polyethylene powder with subsequent moulding at 190°C and specific pressure of 10 to 15 MPa. Heated obtained article is placed into injection mold wherein laminating layer of polyoxymethylene is injected at 230°C. Now, the article is cooled.
EFFECT: reduced weight, higher hardness and wear resistance.
3 dwg, 1 tbl
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Authors
Dates
2009-12-27—Published
2008-06-26—Filed