A repairing process for a concave-convex shears
By using milling fixtures and laser cladding technology, combined with shot blasting and heat treatment, the wear resistance and machining accuracy problems of the concave-convex shear blades under high temperature and high impact environments have been solved, achieving efficient repair and life extension of the shear blades.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI LINGFENG METALLURGICAL MACHINERY
- Filing Date
- 2023-05-09
- Publication Date
- 2026-05-29
AI Technical Summary
Existing convex and concave shears are prone to blade dulling, oxidation, and microcracks under high temperature and high impact conditions, leading to chipping. Current repair methods cannot effectively guarantee the impact resistance, oxidation resistance, and corrosion resistance of the convex and concave shears.
The process employs milling and grinding fixtures combined with laser cladding technology. Pre-alloyed powder containing elements such as B, Cr, Mo, Nb, and Ti is used for laser cladding. Combined with shot blasting and heat treatment, the toughness, oxidation resistance, crack resistance, and wear resistance of the shear blade are ensured. The blade is fixed through milling/grinding processes to ensure machining accuracy.
It significantly improves the wear resistance, crack resistance, and processing accuracy of the concave-convex shear blade, extends the service life of the blade, and meets the shearing requirements under high temperature and high impact environments.
Smart Images
Figure CN116532937B_ABST