Method of blow molding hollow articles from thermoplastic synthe

Details Method of blow molding hollow articles from thermoplastic synthe Method of blow molding hollow articles from thermoplastic synthe

1996-11-29

1998-11-24

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264541, 425140, 425141, 425532, B29C 4978

Patent

active

058402233

ABSTRACT:
A process for blow-molding hollow bodies from thermoplastic synthetic resin wherein, in addition to control to accurately position an extruder thermoplastic melt preform in the blow mold and to maintain a constant weight of the extruded preform, on the program curve which itself is a superimposition of the profile curve of the preform and a base gap determined in accordance with the nozzle gap width through which the preform is extruded, there is superimposed a correction strip which can be varied depending upon material distribution changes as a result, for example, of sag of the preform.

REFERENCES:
patent: 3795719 (1974-03-01), Morecroft et al.
patent: 4338071 (1982-07-01), Daubenbuchel et al.
patent: 4424178 (1984-01-01), Daubenbuchel et al.
patent: 4444702 (1984-04-01), Thomas et al.
patent: 5102588 (1992-04-01), Feuerherm
patent: 5256346 (1993-10-01), Feuerherm
patent: 5665399 (1997-09-01), Enderby

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