Repair and PVD (Physical Vapor Deposition) surface strengthening method for cutting edge of disc shear blade
A repair method and surface strengthening technology, applied in the field of iron and steel metallurgy, can solve problems such as increased production costs, loss of disc scissors blades, cracking of disc scissors blades, etc., to ensure production quality and efficiency, improve shear performance, reduce The effect of production costs
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Embodiment 1
[0045] S1. Disk scissor blade edge treatment: use cleaning liquid to clean the disc scissor blade edge, use a dryer for air intervention after cleaning, and grind, polish and sandblast the disc scissor blade edge after air drying. , after the treatment, use the cleaning solution to clean the cutting edge of the disc scissors again;
[0046]S2. Coating of the inner coating: the inner coating is coated with carbide, and a Ti target is used. The disc scissors treated in step S1 are placed in a vacuum furnace, and the vacuum is evacuated to less than 5Pa. Heating is performed so that the surface temperature of the disc scissors is controlled at 300 °C. At this time, argon and nitrogen can be passed into the vacuum furnace, the bias voltage and ion source can be turned on, and ion plating can be performed to obtain an inner coating. The thickness of the inner coating is 0.2μm, the bias voltage is 300V, the flow rate of argon gas is 20sccm, the flow rate of nitrogen gas is 10sccm, a...
Embodiment 2
[0051] S1. Disk scissor blade edge treatment: use cleaning liquid to clean the disc scissor blade edge, use a dryer for air intervention after cleaning, and grind, polish and sandblast the disc scissor blade edge after air drying. , after the treatment, use the cleaning solution to clean the cutting edge of the disc scissors again;
[0052] S2. Coating of inner coating: The inner coating is coated with carbide, and a Ti target is used. The disc scissors treated in step S1 are placed in a vacuum furnace, and the vacuum is evacuated to less than 8Pa. Heating is carried out so that the surface temperature of the disc scissors is controlled at 300-350 ° C. At this time, argon and nitrogen can be passed into the vacuum furnace, the bias voltage and ion source can be turned on, and ion plating can be carried out to obtain the inner coating and inner coating. The thickness is 0.3μm, the bias voltage is 400V, the flow rate of argon gas is 30sccm, the flow rate of nitrogen gas is 20scc...
Embodiment 3
[0057] S1. Disk scissor blade edge treatment: use cleaning liquid to clean the disc scissor blade edge, use a dryer for air intervention after cleaning, and grind, polish and sandblast the disc scissor blade edge after air drying. , after the treatment, use the cleaning solution to clean the cutting edge of the disc scissors again;
[0058] S2. Coating of the inner coating: the inner coating is coated with carbide, and a Ti target is used. The disc scissors treated in step S1 are placed in a vacuum furnace, and the vacuum is evacuated to less than 11Pa. Heating is carried out so that the surface temperature of the disc scissors is controlled at 300-350 ° C. At this time, argon and nitrogen can be passed into the vacuum furnace, the bias voltage and ion source can be turned on, and ion plating can be carried out to obtain an inner coating and an inner coating. The thickness is 0.4μm, the bias voltage is 500V, the flow rate of argon gas is 40sccm, the flow rate of nitrogen gas i...
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