Die casting method of manufacturing the cage
The cage of the raw material for die-casting aluminum alloy, brass, and the melting of raw materials poured into the die casting machine die-casting mold, once the cage die casting forming. Casting gate to go in the car bed car. This side of the process is characterized by:
(1) cage directly die-casting molding, can get a good geometry and dimensional accuracy, without machining, high production efficiency.
(2) die casting, metal crystal solidification, the organization of precision, good surface quality and wear.
(3) high material utilization and reduce costs.
Die-casting aluminum alloy cage required tonnage of equipment, mold design and manufacturing complex, easy to keep the die-casting frame pocket hole strain. In the bearing to withstand shock, vibration and speed of changing conditions, the need to further improve the quality of die-casting cage.
2 plastic casting manufacturing cage
Place the vacuum drying granular engineering plastics in the barrel, after a resistance wire heating to melt into a semi-liquid state, with the plunger or the mobile screw pressure, and semi-liquid material injected from the nozzle forming mold injection molding machine, after insulation, cooling the cage. Process is characterized by:
(1) cage a plastic injection molding, to get the precise geometry and dimensional accuracy and low surface roughness values??, without machining, high production efficiency.
(2) mold and plastic cast shaped bearing assembly is convenient, easy to implement automation and control.
(3) plastic cage with the good performance of wear-resistant, anti-magnetic and low friction.
However, due to thermal deformation of the plastic itself existing, aging and embrittlement shortcomings, and to maintain some of the issues on the frame and plastic injection process to make plastic casting cage of application is limited.
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