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[CN 202110514570.2] A Repair Method for Pda630 Press Gear
[CN 202110514570.2] Title of a Repair Method for Pda630 Press Gear: Application Number of a Repair Method for Pda630 Press Gear: CN 202110514570.2 Applicant: Luoyang LYC Bearing Co., Ltd.; Luoyang Luoxi Precision Forging Heavy Industry Co., Ltd. Application Date: 2021-5-12 Patent Type: Invention Application for a Repair Method for Pda630 Press Gear Involving in the Technical Field of Gear Repair, Including the Following Steps: s1, structural mapping and material determination of the old gear; S2, cut off the damaged old shaft sleeve and old plate, and retain the original gear ring; S3, eliminate the ellipse of the old gear and carry out a low-temperature tempering; S4, re-make the new shaft sleeve, the new web plate and the new support cylinder, and combine and spot weld connection; S5, preheating the spot welded new gear, after preheating the parts of the new gear to be welded to 130~170 degrees, welding and welding in protective atmosphere shall be adopted. S6, the new gear after welding is tempered at a low temperature, the tempering temperature is 180±5 degrees, the temperature is kept at 6±1 hours, and then air cooled to room temperature; S7, finish machining the new shaft sleeve and process the keyway; This repair method can not only ensure the service performance of the repaired gear, moreover, it can reduce the repair cost and save the maintenance time of the press.
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