Method of producing a deep-drawn formed plastic piece

Details Method of producing a deep-drawn formed plastic piece Method of producing a deep-drawn formed plastic piece

1989-12-01

1992-04-28

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156280, 264500, 264510, 264544, B32B 3114

Patent

active

051085305

ABSTRACT:
A method of manufacturing a deep-drawn formed plastic piece comprises providing a cold-stretchable sheet material with a coating selected from a group of an ink film, an ink imprint, a vacuum evaporated metallic thin film, and an electrically conductive varnish film. The coated sheet is heated with a fluid pressure medium which has a fluid medium pressure of more than 20 bars, and at an operating temperature lower than the softening temperature of the sheet material, in order to deform the sheet material isostatically to obtain the deep-drawn formed coated plastic piece.

REFERENCES:
patent: 1857034 (1968-12-01), Knox
patent: 4931325 (1990-06-01), Corradini et al.

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