Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Differential temperature conditioning
Patent
1976-08-20
1979-10-30
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Differential temperature conditioning
264571, 264102, 264327, 264328, 425546, 425589, B29F 100
Patent
active
041728726
ABSTRACT:
A method of molding large-sized plastics is disclosed, in which is used an apparatus comprising an extruding means and a die clamping device composed of a stationary die plate and a movable die plate, both being able to be connected to each other in order to clamp the die or separated to open the die with tie bars on the movable die plate inserted into or drawn out of the stationary die plate, and a die of thin plate make attached to the die clamping device and comprising a cavity and a core, each being partitioned into a plurality of small sections in order to control the temperature of each section separately. Thus, a molten material is extruded into the die after it is heated partially at different temperatures required, and, after it is cooled down partially at different rate required, the solidified article is taken out of the die, so that a large-sized article of good quality is obtained with low molding costs. The die is less expensive and easy to handle, and the replacement of it is also very easy.
REFERENCES:
patent: 2781547 (1957-02-01), Moxness
patent: 2926386 (1960-03-01), Hutchinson
patent: 3345442 (1967-10-01), Oxel
patent: 3357057 (1967-12-01), Bucy
patent: 3596325 (1971-08-01), Hehl
patent: 3671168 (1972-06-01), Nussbaum
patent: 3674386 (1972-07-01), Orth
patent: 3763293 (1973-10-01), Nussbaum
patent: 4020137 (1977-04-01), Lachner et al.
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Silbaugh Jan H.
LandOfFree
Method of molding large-sized plastics 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 of molding large-sized plastics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of molding large-sized plastics will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-20154