Appearance and Size Requirements of Tungsten Points in Interrupter

Appearance and size requirements of tungsten points in interrupter:

The appearance requirements of tungsten points:
Smooth appearance. There are no rust, burr, discoloration, cold solder joint and other defects in their surface; Furthermore, its electrodeposition is without peeling, de-plating, leak plating layer and other problems.

Uniform welds. The thickness of the weld ≤¼ the thickness of tungsten sheet.
Point surface of tungsten points do not exist depressions or remaining machining marks, its roughness Ra is less than 0.4μm.

The size requirements of tungsten points:
According to drawings or specifications supplied by customer, or on the basis of the negotiation agreed by customer and supplier.


 

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