Sintex - Thermal Coatings - Produkt

 Hobro  -  Danmark
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Sintex - Thermal Coatings
  • Sintex - Thermal Coatings

Thermal spraying is a process whereby heated metal powder is applied by spraying within the desired applications. You could also call it metal spraying. It is used for pump and motor components, shafts, bearings, seals, machine and tool parts, measuring tools, measuring fixtures, valves, pistons, guideways, wearing bands, etc. There are countl

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Thermal spraying is a process whereby heated metal powder is applied by spraying within the desired applications. You could also call it metal spraying. It is used for pump and motor components, shafts, bearings, seals, machine and tool parts, measuring tools, measuring fixtures, valves, pistons, guideways, wearing bands, etc. There are countless possibilities.

The lifetime of the workpieces and applications is extended up to 8-9 times, due to the very high carbide content in the coatings. Tungsten carbide has a hardness of 2200 HV5. Typical particles that cause wear such as quartz or sand have a hardness of around 1200-1500 HV5. By comparison, the hardness achieved using various heat treatments (hardening) is typically 700-800 HV5. Thermal spraying thus offers much higher wear resistance.

At Sintex a/s we produce a range of thermal spray coatings for the wear resistant coating of components where there are very high requirements with respect to wear and corrosion resistance.
 
The process involves spraying heated metal powder onto the desired applications. These can be pump and motor parts, shafts, bearings, seals, machine parts, tool parts, measuring tools and fixtures, valves, pistons, guides, rollers, rails or other components. The possibilities are endless.
 
The lifetime of the components – and thus the applications – is extended due to the very high carbide content in the coatings – up to 90 %. Wolfram carbide has a hardness of approx. 2200 HV5 – typical wear particles such as quartz/sand have a hardness of approx. 1200-1500 HV5. In comparison, the hardness resulting from various heat treatments (hardening) typically lies in the range 700–800 HV5, which means that the wear resistant is considerably lower.
 
The advantages of the process are, however, not just the significantly longer lifetime, but also a very low coefficient of friction, good wear resistance and good corrosion properties. In the majority of cases, it is a much better solution to buy a cheaper material and apply a thin coating to it rather than purchasing more expensive tool steel, which subsequently has to be heat treated. The benefits lie not only in relation to cost-effectiveness, but also in terms of wear resistant.

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