Silicon Nitride Ceramic Guide Pin For Nut Welding
- MSJ/SN-004
- Silicon Nitride
- custom size
- 10 pcs per type
- projection welding
Silicon nitride (Si3N4) ceramic welding pins are used as location pins in projection welding to allow precise welding of nuts to sheet metals. They are solid ceramic pins made of ultra-hard material silicon nitride ceramic, machined with smooth surface and precise sizes. The excellent properties of high hardness, high strength and good wear resistance make silicon nitride ceramic the toughest material for ceramic welding pins.
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Product detail
Silicon nitride (Si3N4) ceramic welding pins are used as location pins in projection welding to allow precise welding of nuts to sheet metals. They are solid ceramic pins made of ultra-hard material silicon nitride ceramic, machined with smooth surface and precise sizes. The excellent properties of high hardness, high strength and good wear resistance make silicon nitride ceramic the toughest material for ceramic welding pins.
Because silicon nitride welding pins are electrically insulated, unnecessary current can be completely avoided, sparks are avoided between ceramic pin and the workpiece, and the slag removal work during the welding process is reduced; the high wear resistance and high fracture toughness of silicon nitride ceramic enables the workpiece to be accurately positioned for a long time. The welded workpiece maintains a very high quality and high yield, reducing the frequency of locating pin replacement and improving production efficiency.
Main properties of silicon nitride ceramic pins
Superior wear resistance
High flexural strength and toughness
Non-electrically conducting
Non-magnetic
No welding spatter adhesion
High temperature resistance
Excellent thermal shock resistance
Material Data Sheet
| Item | Unit | Technical parameters |
| Purity | % | 95 |
| Color | - | Black |
Density | g/cm³ | ≥3.2 |
| Hardness (HV) | Mpa | 1500 |
| Young's Modulus | Gpa | 300 |
Fracture Toughness | Mpa.m1/2 | 6.2 |
Flexural Strength@25℃ | Mpa | ＞720 |
Compressive Strength@25℃ | Mpa | 2200 |
Thermal Conductivity@25℃ | W/mk | 15-20 |
Coefficient of Thermal Expansion (25-1000℃) | 10-6/℃ | 3.0-3.2 |
| Poisson Ratio | - | 0.26 |
| Max. Working Temperature | ℃ | 1200 |
| Dielectric Strength | Kv/mm | 16 |
Electrical Resistivity@25℃ | Ω.cm | >1014 |
Dielectric Constant (@1MHz, 25℃) | - | 8.2 |
Dielectric Loss (Tan Delta) (@1GHz, 25℃) | - | 0.004 |
Packing & Shipment
| Package type | carton box with foam protection |
| Payment terms | TT / Western Union / Paypal 50% payment in advanced and 50% before shipment |
| Loading port | Xiamen, China |
| Shipping way | By sea / air / door-to-door express |
