Plastic casting method for manufacturing holder

Hits：10682016-08-24 15:20:25　source: Liaocheng Dongchangfu tianshun bearing retainer factory

Will vacuum drying granular engineering is arranged in a plastic bucket, after resistance wire heating and melting into a semi liquid state, through the plunger or screw compression, to semi liquid raw materials from the spray nozzle injection molding machine mold. After heat preservation, after cooling to obtain the holder. His craft is characterized by:
(1) to maintain a plastic injection molding, can obtain accurate geometry and dimensional accuracy and low surface roughness value, no need of mechanical processing, high production efficiency.
(2) the mold and the plastic casting form is simple, the bearing assembly is convenient, easy to realize the automation control.
(3) the plastic holder is wear resistant, antimagnetic and low friction and good performance.
However, due to the plastic itself, such as thermal deformation, aging and brittle crack and other defects, as well as some of the problems in the frame structure and plastic injection process, so that the application of plastic casting cage is limited.