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Adhesion / Weld deposits
When metallic materials are welded together, glowing matter known as weld spatter frequently flies around during the welding process. If this matter then lands and cools on equipment components or the production parts themselves, it generally adheres to them.
For equipment components, this can eventually mean that the components can no longer be accurately inserted and positioned. As a consequence, rejects are produced, or the plant must be stopped and cleaned or repaired.
As a general rule, this weld spatter is much less able to adhere to ceramic materials than on metallic materials. This leads to reduced adhesion.
Adhesive wear
If components in contact with one another are pressed firmly together under high surface pressure, the contact areas will adhere to one another due to adhesion (or adhering force). When the components slide, small particles of the surface layer are then sheared off.
This is a recurring problem particularly during the machining of aluminium components. If too much additional material has accumulated on the positioning pin, it is no longer possible to position the components.

Sample Solutions
Gas nozzles
Ceramic gas nozzles made from silicon nitride are characterised by exceptionally long service lives. In certain applications, the ceramic actually prevents the adhesion of weld spatter.
Positioning pin
Positioning pins are used for the controlled positioning to extremely fine tolerances of components and moulded sheet metal parts.
Punching stamps
Punching stamps must repeatedly punch a contour in a predetermined geometry into a sheet.
Cutting disks
All-ceramic cutting disks have carved out a well-earned reputation in series production facilities over many years.
Centring pin
Centring pins are manufactured entirely from ceramic and are used for centring nuts on metal sheets.
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