Process and apparatus for the production of plastic objects

Details Process and apparatus for the production of plastic objects Process and apparatus for the production of plastic objects

1990-06-26

1991-09-17

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Applying explosive force to make article

264 37, 264 401, 264 403, 264 405, 264 41, 264115, 264126, 425 1, B29C 6700

Patent

active

050493302

ABSTRACT:
A process and apparatus is provided for explosively forming plastic objects from shredded plastic such as recycled plastic having different compositions. The shredded plastic and an explosive gas mixture is introduced into a mold cavity having the shape of the object to be formed, and the gas mixture is ignited, generating sufficient heat and pressure to force the plastic to conform to the shape of the mold cavity. The temperature and pressure in the mold cavity is controlled during the explosion by releasing combustion gases from the mold cavity.

REFERENCES:
patent: 3175025 (1965-03-01), Geen et al.
patent: 3456047 (1969-07-01), Vinton et al.
patent: 3645521 (1972-02-01), Geen et al.
patent: 3708362 (1973-01-01), Winchcombe et al.
patent: 4106970 (1978-08-01), Torbet et al.
patent: 4155795 (1979-05-01), Torbet et al.

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