Repair method of main bearing hole of body
A repair method and main bearing technology, which is applied in the field of bearing hole repair, can solve the problems of low welding repair success rate, large impact of cracks, long welding repair cycle, etc., achieve high welding success rate, good bonding strength, and improve welding repair efficiency Effect
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[0030] Aiming at the defects in the main bearing hole of the machine body, this method adopts surfacing welding of the main bearing seat hole, replacement of the semi-finished product cover and machining repair method to restore the size and shape accuracy of the main bearing hole and the position accuracy of each hole system of the machine body, so as to successfully repair the machine body For the purpose of repairing, the main repair process is divided into four parts: cladding surfacing → replacement of surfacing parts and machining → inspection of the repaired body → cleaning and derusting of the body. Among them, surfacing is the key to the entire repair, depending on the size of the defect and Depending on the severity, full surfacing and partial surfacing of the aperture can be used.
[0031] The laser cladding process is as follows: decontamination, oiling, rust removal treatment → pre-repair inspection → removal of surface failure fatigue layer treatment and protectio...
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