Multilayered mold structure for hot surface molding in a short c

Details Multilayered mold structure for hot surface molding in a short c Multilayered mold structure for hot surface molding in a short c

1991-03-28

1993-01-05

Woo, Jay H.

Static molds

Including electric heating means

249111, 2491141, 249116, 249134, 249135, 249112, 4251748R, 425547, B28B 742

Patent

active

051768399

ABSTRACT:
A multilayered insulated mold structure is provided. An insulation layer provided on each of the mold cores retains heat at the molding surface, thereby increasing surface quality of the finished part. The insulating layer has a varying density across its thickness so as to have a low density center region and high density surface regions. By having a relatively low denisty, the center region of the insulating layer has a low thermal conductivity. Thus, the insulating layer may be made from the same material as the core and still have an acceptable insulating value. The use of the same material for adjacent layers reduces the potential of delamination of the layers. The multilayered mold is compatible with passive or active heating of the molding surface.

REFERENCES:
patent: 2979773 (1961-04-01), Bolstad
patent: 3185432 (1965-05-01), Hager, Jr.
patent: 3734449 (1973-05-01), Itou et al.
patent: 3804362 (1974-04-01), Stromblad et al.
patent: 3827667 (1974-08-01), Lemelson
patent: 4018552 (1977-04-01), Prast et al.
patent: 4134942 (1979-01-01), Mirr et al.
patent: 4225109 (1980-09-01), Yotsutsuji et al.
patent: 4285744 (1981-08-01), Rudolph et al.
patent: 4496131 (1985-01-01), Yang
patent: 4563145 (1986-01-01), de Meij
patent: 4744849 (1988-05-01), Michaud-Soret
patent: 5041247 (1991-08-01), Kim

Affiliated with

Also associated with

Rating

Multilayered mold structure for hot surface molding in a short c does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multilayered mold structure for hot surface molding in a short c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayered mold structure for hot surface molding in a short c will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2389618