Dry rubber compression molding apparatus

Details Dry rubber compression molding apparatus Dry rubber compression molding apparatus

1976-01-14

1977-09-06

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Means to create a vacuum or apply fluid pressure within a...

425437, 425DIG19, 425DIG44, B30B 502, B30B 1102, B28B 712, B28B 706

Patent

active

040464997

ABSTRACT:
A method for avoiding cracking of the molded body during the decompression step in an isostatic pressing method of molding. The powders to be molded are housed in a shaping rubber mold, are molded under pressure, and the improvement is characterized by supplying forcibly gas between the outer peripheral surface of a molded body or a shaping thin rubber bag where the molded body is housed and the inner peripheral surface of the shaping rubber mold, the gas having a pressure higher than the isostatic pressure applied to the shaping rubber mold at the time when the shaping rubber mold begins to restore to its original state during the decompression step of the method. An apparatus for the said compression molding which is equipped with a specially designed pressure gas inletting device.

REFERENCES:
patent: 3034191 (1962-05-01), Schaefer et al.
patent: 3220103 (1965-11-01), Simons
patent: 3698843 (1972-10-01), Bowles et al.
patent: 3730666 (1973-05-01), Bowles
patent: 3734670 (1973-05-01), Stickler
patent: 3830607 (1974-08-01), Baxendale et al.
patent: 3832100 (1974-08-01), Baxendale

Affiliated with

Also associated with

Rating

Dry rubber compression molding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dry rubber compression molding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dry rubber compression molding apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2160331