Si3n3 Ceramic Guide Pin for Spot Welding

• Customization: Available
• Standard: GB
• Surface Treatment: Powder Coated
• Energy Source: Ultrasonic
• Material: Stainless Steel
• Type: Braze Welding
• Name: Kcf Guide Pin
• Materials: Kcf Alloy
• Brand: Blm
• Application: Spot Welding
• Transport Package: Plastic Box
• Specification: 15x15x20
• Trademark: BLM
• Origin: China

Product Description

The silicon nitride positioning pins are used as projection welding (spot welding), insulative silicon nitride positioning pins can completely avoid the passage of unnecessary current, avoid sparks between the pins and the workpiece, and the high silicon nitride The wear-resistant feature allows the workpiece to be accurately positioned for a long time. The welded workpiece maintains a very high quality and high yield.

Silicon nitride is an insulating material. With respect to the conductive material, the screw cap does not need to be removed after the welding, which reduces the number of processes, improves the efficiency, and improves the welding quality. And because of the avoidance of sparks, the workpiece does not need to add extra holes.

The main disadvantage of other materials as projection welding pins is that the welded nut needs to be re-drilled after welding. In addition, welding pins of other materials have a short life and need to be replaced frequently, which increases labor costs and reduces production efficiency. The use of ceramic weld pins eliminates the need for slag removal for the nut after welding, which reduces the number of procedures, improves efficiency, and improves welding quality. The cost of ceramic silicon nitride welding pins is 10-30 times that of other materials, but the service life is 15-20 times that of other materials. Although the one-time investment will be large, but in a comprehensive comparison, due to the extended life, the subsequent process is omitted. A very good price/performance ratio can be obtained.
 

ITEM	UNIT	Silicon Nitride | GPSN	Zirconia | YSZ95
Main Content	-	Si3N4>95%	ZrO2>94.5%
Color	-	Black	White & Blue & Black
Density	g/cm^3	3.22	5.95
Vickers Hardness	Gpa	15	12
Flexural Strength	Mpa	580	800
Compressive Strength	Mpa	2,100	2,000
Electrical Resistivity	Ω·cm	>10^12	>1012
Dielectric Strength	KV/mm	19	9
Dielectric Constant	1 MHz	9.6	28
Thermal Conductivity	W/m.K	27	2.2
Max. Working Temperature	ºC / °F	1,200 / 2,200	600 / 1,110
Resistance to Thermal Shock	△T(ºC)	750	260
Thermal Expansion Coefficient (25 - 1,000 ºC)	10^-6/K	3 - 4	11 - 13