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Mould surface self-smooth super wear-resistant treatment skills (middle)

Source: China Bearing Network Time: 2018-05-31

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two. Improve the wear resistance of the mold, punching, stretching and other molds in the production of repeated rubbing conditions; it is necessary to improve their wear resistance to extend the life of the life. Such as the selection of new materials, surface treatment of new processes, etc.; High, process clutter, long production cycle and other defects. 823 anti-wear agent and Cr12, CrMoV, T10A and other ferrous metal atoms constitute a covalent bond; its contact force is 30 ~ 150 kcal / mol; Van der Mana) 11 to 300 times larger; despite the strong process force in the stamping process; it will not drop the coating.
The metal surface coated with the 823 anti-wear agent can constitute a multi-molecular structure of oriented placement; usually 3 to 4 layers; the thickness is about 20 nm. The 823 anti-wear coating of the multi-molecular structure constitutes a conflict between the film and the film. Used in cold stamping dies such as punching, drawing, zigzag, die casting, etc.; can greatly improve their wear resistance; the effect is remarkable.
a. Reduce the number of times the mold is sharpened, save labor and time; reduce labor intensity.
b. Make the workpiece scale stable; greatly improve the yield of the product.
c. Extend the die life by 3~10 times; reduce the mold information cost and production cost.
three. Ensuring outstanding smoothness in the stamping process; because of the strong conflicting forces; the need to increase the high-strength special smooth oil to reduce the conflict coefficient and then reduce the conflicting force to improve the workpiece quality and extend the die life. There are many ways to improve the mold surface. Hardness; such as surface quenching, hard chrome plating, nitriding treatment, etc.; but these methods have a common defect; that is, can only improve the hardness of the mold surface; but can not reduce the surface conflict coefficient and reduce the conflicting force.
When the surface of the mold is coated with 823 anti-wear agent; a good film is formed on the surface of the mold; this film is formed by the polar molecules of numerous anti-wear agents. Two of the 823 anti-wear agents are coated. The movement of the metals is actually a collision between the tail and the tail of the polar molecule of the 823-protected rivet on the metal surface; it has outstanding self-smooth properties; it resists seizure (bonding); it can reduce the gap between the workpiece and the mold. The conflict coefficient is 5~10 times and the conflicting power is reduced by 1/3 or more.
a. Improve the quality of the workpiece section; reduce burrs.
b. Decrease the surface roughness; make the surface of the product bright; do not pull flowers; do not crack.
c. Can make the blanking smooth; prevent the appearance of blockage.
d. It has a significant effect on the molds used for batch production.
four. Corrosion and rust proof
823 anti-wear agent has excellent protection function; strong hydrophobicity, anti-humidity, salt spray and SO2, H2S, CO2 and other metal corrosion corrosion. The film is resistant to single solvent wiping. The mold coated with 823 anti-wear agent is No rust prevention is required in the application or in stock; it will remain oxidized and rust for a long time.
V. Scale of use
1. auto industry
a. Cylinder piston camshaft shifting cam away from cam valve tappet piston pin
b. Crankshaft copper sleeve bearing bearing gear connecting rod high pressure oil pump injector various chains
2. aviation industry
a. Various valve body spool connector instrument surface shell
b. Dial pointer gyro nut screw fairing
3. Machine processing industry
a. Mold: punching die drawing die dialing die kneading die casting die
b. Measuring tool: caliper square micrometer dial gauge thread plug gauge thread stop gauge height gauge
c. Tool: turning tool, knife, boring, tapping, milling cutter, broach, tooth cutter, tooth cutter

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