Centrifugal pressure casting process of copper lining bearing

Abstract

The invention discloses a centrifugal pressure casting process of a copper lining bearing. The centrifugal pressure casting process of the copper lining bearing comprises the following steps: firstly an outer circle of a shaft sleeve manufactured according to design is chamfered and cast bronze is added to an inner hole, and meanwhile borax and charcoal dust in a volume ratio of 2:1 are added; then steel plates with venting holes are welded at two ends of the shaft sleeve for sealing; the sealed shaft sleeve is placed in an electric furnace for heating, heat preservation and reheating, after the process of heat preservation, the shaft sleeve is taken out from the electric furnace in a state of maintaining a horizontal axis; then the shaft sleeve is sleeved and clamped on a taper clamp head of a casting machine, a copper liner is evenly solidified in the process of rotating, a cooling system is opened for cooling, the shaft sleeve is demounted after rotating back for 3 minutes in a cooling state, the steel plates at the two ends of the shaft sleeved are cut out by a cutting knife in a lathe, and centrifugal pressure casting of the copper lining bearing is completed. The centrifugal pressure casting process of a copper lining bearing has the advantages of being simple in process, reliable in quality, saving in copper materials, and high in efficiency.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a centrifugal casting process for copper-lined bearings. Background technique [0002] All transmission shafts running at high speed or under heavy load require their sliding bearings to have a certain bearing capacity, wear resistance and stability. In order to save the bushing material and reduce the bearing volume, the bushing is usually cast directly On the inner hole of the bearing, but using the traditional molding casting method, the thickness of the bushing needs to be increased, and it will also cause various defects such as air holes and uneven thickness. , it is difficult to meet the quality requirements. Contents of the invention [0003] The object of the present invention is to provide a centrifugal casting process for copper-lined bearings, and the quality of the bearings produced by the process is reliable. [0004] The technical solution of the ...

AI Technical Summary

Problems solved by technology

[0002] All transmission shafts running at high speed or under heavy load require their sliding bearings to have a certain bearing capacity, wear resistance and stability. In order to save the bushing material and reduce the bearing volume, the bushing is usually cast directly On the inner hole of the bearing, but using the traditional molding casting method, the thickness of the bushing needs to be increased, and it will also cause various defects such as air holes and uneven thickness. , it is difficult to meet the quality requirements

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