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Silicon nitride locating pin

Projection welding (spot welding) silicon nitride positioning pin is used to weld metal nuts to the precise position of the metal plate. Silicon nitride positioning pin mainly uses silicon nitride to have high strength, wear resistance, metal melt corrosion resistance (silicon nitride ceramic has a very large contact angle with metal and has almost no chemical reaction) and insulation. Silicon nitride positioning pin is very suitable for use as a projection welding (spot welding) joint, because if the use of insulated silicon nitride positioning pin during welding, there will be unnecessary current through, so that sparks between the pin and the workpiece, resulting in pin wear and tear can not be positioned, so that the quality of the workpiece and the pass rate are reduced. And because sparks are generated, the workpiece often needs to be

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Projection welding (spot welding) silicon nitride positioning pin is used to weld metal nuts to the precise position of the metal plate. Silicon nitride positioning pin mainly uses silicon nitride to have high strength, wear resistance, metal melt corrosion resistance (silicon nitride ceramic has a very large contact angle with metal and has almost no chemical reaction) and insulation. Silicon nitride positioning pin is very suitable for use as a projection welding (spot welding) joint, because if the use of insulated silicon nitride positioning pin during welding, there will be unnecessary current through, so that sparks between the pin and the workpiece, resulting in pin wear and tear can not be positioned, so that the quality of the workpiece and the pass rate are reduced. And because sparks are generated, the workpiece often requires additional through-hole processes. At present, the silicon nitride projection welding (spot welding) positioning pin has been applied in large domestic auto parts factory, and the comprehensive cost performance is 70 times that of steel positioning pin.

Other materials as positioning pins have the following disadvantages: 1) After welding, it is necessary to re-hole the welded nut. It takes a lot of labor. 2) The life span is short and requires frequent replacement, which increases labor costs and reduces production efficiency.

Other material positioning pins have the advantage of low cost.

Using silicon nitride as a positioning pin has the following advantages: 1) After welding, the nut does not need to be deslagging, which reduces the process, improves the efficiency, and improves the welding quality. Specifically: welding takes time: 20 seconds 2) The life is 5 to 10 times that of stainless steel positioning pins. Overall cost savings. Increased benefits. Disadvantages: 1) The unit price is 10 to 50 times higher than the stainless steel positioning pin, and the one-time investment needs to be increased.

After a comprehensive comparison, due to the extension of life and the elimination of a later process, the cost performance of silicon nitride positioning pins will be 1000 times that of stainless steel. Therefore, replacing the stainless steel positioning pin with a 50-price silicon nitride positioning pin is definitely worth the price. It is therefore recommended that you use silicon nitride locating pins. Our company specializes in producing silicon nitride ceramics, which can fully meet your requirements for positioning pins. If you have any intention, please contact us by telephone, mail, samples, drawings, etc.

 

Key words:

Silicon nitride products for polycrystalline silicon ceramic grinding ball ceramic parts zirconia knife cup ring ceramic bearing

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