National Standard for Tungsten Heater——E, M Type

Tungsten heater made of tungsten wire, features high melting point and high corrosion resistance, mainly applied for vacuum metalizing, such as aluminizing scope, chrome scope, mirrors, plastics and heater elements for decoration articles. According to the national standard for tungsten heater, except A, B, C, V, D1 and D2 six types, the types of the wolfram heater also including E type and M type.

It can be seen from Figure 1 and Table 1, E-type tungsten heater’s legs are longer, and splay outward.

From Figure 2 and Table 2, profile of M type tungsten heater is in the shape of the capital letter "M", and rotation is right.

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