Strictly demand the quality of the blank
The raw materials used to manufacture silicon carbon rods of equal diameter are industrial products except quartz sand and natural graphite powder. Generally, they are not self-processed. Generally, the requirements for the carbon rod blanks during processing are as follows:
1. Equivalent diameter The components in the silicon carbide billet should be fully mixed and uniform, and the particle gradation should be as large as possible.
2. The billet should not contain water, and try to reduce bubbles. If there is water, the surface of the rod will bubble during molding, and it may not even be molded.
3. The amount of binder in the bad material should be appropriate. Large amount will cause the rod body to be easily deformed, and the rod body will have a large porosity, which will affect the product life; small amount will be difficult to press, or cause biscuit delamination or breakage.
The forming method determines the formula of the forming blank and the preparation method of the blank. Therefore, the quality of the material and process must be controlled when the equal diameter silicon carbide rod is processed to reduce the output of bad products!
