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7 Yrs
Ceramtec-Platz 1?9
Plochingen, South Carolina-73207, Germany+(49)-7153-6110
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Welding Pins

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Welding Pins Made of SL200B Silicon Nitride Ceramics
Ceramic welding pins made of gas-pressure sintered silicon nitride
for maximum service life and highest product quality for welding

Advanced ceramics,
which ensure a perfect fit for sheet metal and nuts and are subjected to
temperatures of up to 800 °C, have long replaced metal in the production of welding pins.
Metal cannot compete with ceramics with regard
to insulating properties, resistance to temperature change, and minimal wear
and tear due to the high degree of hardness and durability. Yet another
advantage of ceramics is their smooth polished surface, which prevents
welding spatter from adhering.

However, service life does face limitations when it comes to welding pins
made of commonly used zirconium oxide ceramics. Over time, this material
is likewise unable to stand up to the 30 to 40 kiloamperes that flow through
the copper and the required working temperature of 800 °C, and thus suffers
from wear.

This is why our CeramTec materials experts have developed the SL200B
ceramic material — especially for use in the field of welding technology.
SL200B is a 100 bar gas-pressure sintered silicon nitride (Si3N4) with
impressive properties. And it boasts decisive advantages compared to
zirconium oxide or even metal: Extreme hardness and flexural strength,
a high level of thermal shock resistance, electrical insulation,
temperature resistance, and high tensile and compressive strength make
SL200B silicon nitride ceramics a material that withstands the working
conditions of projection welding and ensures a significantly longer
service life. For comparison: while commonly used ceramic welding pins
exhibit service lives 40 times that of metal, the service life of our
SL200B silicon nitride ceramics is an additional
five times greater than that of centering pins made from zirconium oxide.


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