Method for forming heat-resistant containers

Details Method for forming heat-resistant containers Method for forming heat-resistant containers

1995-03-14

1997-06-24

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Differential temperature conditioning

264530, 264906, 425526, B29C 4918, B29C 4964

Patent

active

056414510

ABSTRACT:
A heat-resistant container forming method includes a step of thermally shrinking a primary blow molded article in a heating furnace before secondary blow molding the primary blow molded article into a final product or container. Into the furnace, hot air which flows along the longitudinal direction of the first blow molded article and whose temperature enough to facilitate crystallization of the primary blow molded article. The primary blow molded article is thermally shrunk by exposing the entire circumferential surface of a barrel of the primary blow article to the hot air and by blowing the hot air longitudinally along the primary blow molded article to heat the barrel circumferentially uniformly. Since hot air touches the barrel as flowing longitudinally thereof, it is possible to increase the heat conductivity of boundary film of the primary blow molded article, without increasing the hot air temperature too high, so that temperature rise of the primary blow molded article is facilitated.

REFERENCES:
patent: 3752641 (1973-08-01), Moore
patent: 3882213 (1975-05-01), Uhlig
patent: 4063867 (1977-12-01), Janniere
patent: 4729732 (1988-03-01), Schad et al.
patent: 5232715 (1993-08-01), Fukai
patent: 5281387 (1994-01-01), Collette et al.
patent: 5322651 (1994-06-01), Emmer
patent: 5338181 (1994-08-01), Denis et al.
patent: 5352402 (1994-10-01), Orimoto et al.
patent: 5370834 (1994-12-01), Sorensen

Affiliated with

Also associated with

Rating

Method for forming heat-resistant containers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for forming heat-resistant containers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming heat-resistant containers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-147518