National Standard for Tungsten Heater——Dimensional Requirements

Because different applications, tungsten heater can be stranded into single or multi wires according to the samples or the specific requirements of drawings of customers.  Pure wire and doped wire are both available. But not all styles wolfram heater can eventually qualified to be used. The National Standard GB SJT 11063-1996 in China makes clear rules about the dimension of the tungsten heater.

At first, the technical requirements of two legs of tungsten heater should be flush with each other, they also need to maintain parallel. Secondly, operators can test the products with eyes, a ruler or vernier caliper.

For tungsten heater type A, the National Standard GB SJT 11063-1996 have made the following provisions about its total width, length of the coil, the total height, diameter, the number of circle, specifications and direction of rotation, which is shown in Table 1.

It can be seen from Figure 1 that legs of type A tungsten heater have orthogonal bent, and the direction is downward. What’s more, distance of two legs is long.

Dimensional requirements of type B can be seen in Table 2. As it can be seen from Figure 2, the distance between two legs of type B is shorter than type A.

From Table 3, people can clearly know that dimensions and specifications of type C wolfram heater, which only have two specifications. It is made of single tungsten wire, its two legs extending from side to side, the total width is much wider than the type A and B. C type appearance can be seen from Figure 3.

These three types are more common shapes and sizes, in fact, in order to facilitate the subsequent use of the wolfram heater, it is often made into a variety of shapes and sizes. So tungsten heater can be made in accordance with the special requirements of customers.

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