Laser repair method for abraded centrifugal fan bearing block
A centrifugal fan and laser repair technology, applied in laser welding equipment, coating, metal material coating technology, etc., can solve problems such as poor wear resistance, cracks, and easy peeling off of the repair layer
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Embodiment 1
[0027] The first step of preparation before repair: Disassemble and disassemble the centrifugal fan equipment numbered RZ-LF-011 to be repaired, mark it, clean the workpiece with a high-pressure water gun, and clean the dust, oil, rust, etc. on the bearing seat of the centrifugal fan , Detect the size of each part, determine the damaged part of the bearing seat and the amount of wear. Perform radial and end surface runout on the bearing housing of the centrifugal fan to detect whether there is any deformation. Carry out failure analysis and life evaluation of the workpiece, formulate the repair process according to the repair content; according to the damage situation, remove the fatigue layer of 1.5mm from the damaged part, and a new processing surface appears. Detect the material and hardness of the base material of the bearing seat, and confirm that the base material of the bearing seat is HT15-32 gray cast iron.
[0028] The second step is in the repair process: configure...
Embodiment 2
[0031] The first step is to prepare before the repair, disassemble and disassemble the centrifugal fan equipment numbered RZ-LF-017 to be repaired, mark it, clean the workpiece, clean the dust, oil, rust, etc. on the bearing seat of the centrifugal fan, and test the dimensions of each part , to determine the damaged part of the cylinder bearing seat and its wear amount. Perform radial and end surface runout on the bearing housing of the centrifugal fan to detect whether there is any deformation. Carry out failure analysis and life evaluation of the workpiece, formulate the repair process, working hours, etc. according to the repair content; remove the fatigue layer of 1.3mm from the damaged part, and clean it to show a new processed surface. Detect the material and hardness of the base material of the bearing seat, and confirm that the base material of the bearing seat is HT15-32 gray cast iron.
[0032] The second step is in the repair process: configure the metal alloy powd...
Embodiment 3
[0035] The first step is to prepare before the repair, disassemble and disassemble the bearing seat of the centrifugal fan numbered RZ-LFZ-016 to be repaired, mark it, clean the workpiece, clean the dust, oil, rust, etc. on the bearing seat of the centrifugal fan, and inspect all parts Size, determine the damaged part of the cylinder bearing seat and its wear amount. Perform radial and end surface runout on the bearing housing of the centrifugal fan to detect whether there is any deformation. Carry out failure analysis and life evaluation of the workpiece, formulate the repair process, working hours, etc. according to the repair content; remove the fatigue layer of 2 mm from the damaged part, and clean it to create a new processed surface. Detect the material and hardness of the base material of the bearing seat, and confirm that the base material of the bearing seat is HT15-32 gray cast iron.
[0036] The second step is in the repair process: configure the metal alloy powder...
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