Composite Tungsten Rod Heater for Sapphire Crystal Growth

The utility model is crystal processing techniques, and, more specifically, a sapphire crystal is a crystal growth furnace used for the growth of the composite tungsten rod heater.

Currently, the prior art method of sapphire crystal growth is generally used Kyropoulos, Kyropoulos sapphire crystals grown using tungsten rod heater, the heater is made of tungsten rod diameter and a length of 4 ~ IOmm tungsten rods is formed by bending a circular heater assembly of the cage-like structure, the diameter and the number of cage-shaped heater according to the temperature required for the tungsten rods conditions Kyropoulos course be selected, however, the tungsten cage Stick heater has the following significant disadvantages:

1) Due to the bending processing of the tungsten rod bow 丨 into more stress is easily deformed such that the bottom heater is broken, short life;

2) High temperature stability is not good, easy to deformation caused by uneven temperature field, affecting the quality of products;

3) Repair and maintenance costs are higher.

In order to solve the above problems, the utility model provides a long life, stable temperature performance, temperature field uniformity, lower repair and maintenance costs of sapphire crystal growth composite tungsten rod heater, its specific programs: the sapphire crystal growth by the heater bar and the composite tungsten copper electrode rod tungsten, tungsten plate, fixing nut, fixed tungsten rings, characterized in that the fixed ring is set to a circular tungsten, tungsten rod fixed at uniform tungsten ring, tungsten the upper end of the rod is provided a copper electrode, the lower end of the tungsten bar tungsten plate is provided, by fixing the upper end of the tungsten rod and a nut fixed to the copper electrode connected to a lower end fixed by a tungsten rod with a tungsten plate fixedly connected to the nut.

1 conjunction with the accompanying description of the utility model in more detail, so that the public a better understanding of the practical implementation of the new method, the utility model specific embodiments are: sapphire crystal growth of the composite made of copper tungsten rod heater an electrode, tungsten rod 2, tungsten plate 3, the nut 4 is fixed, consisting of a fixed tungsten ring 5, characterized in that the tungsten ring 5 is set to a fixed circular, fixed ring 5 is disposed uniformly tungsten tungsten rod 2, the upper end of the tungsten rod 2 providing a copper electrode 1, 2 is provided with a lower end of the tungsten bar tungsten plate 3, the upper end of the tungsten rod 2 is fixed by the fixing nut is connected to the copper electrode 4 I, the lower end of the tungsten rod 2 is fixedly connected to the fixing nut 4 by tungsten plate 3.




Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

• < Prev
• Next >