Why the cost for extruder heating tube is high?

- Mar 29, 2019-

  1. We know that the extruder heating tube has been in a high temperature working environment, and the temperature will generally reach 300-500 degrees. Therefore, the material of the heating tube should be made of materials that can withstand high temperature. It is generally recommended to use stainless steel 321 Seamless tubes or stainless steel 310s seamless tubes. Of course, there are some manufacturers that sell at low prices. The material is made of stainless steel 201. Although the extruder heating tube is cheap, it is bound to burn out.


2. When the heating tube is working, due to the high temperature and vibration environment, we generally recommend the use of nickel-chromium wire in the selection of heating wire, because the flexibility of nickel-chromium wire is much better than that of iron-chromium-aluminum. . Nickel-chromium 2080 resistance wire is generally used. But the cost of nickel-chromium wire is also much higher than that of iron-chromium-aluminum.


3. Heating tube For the extruder heating tube used in the aluminum extrusion press equipment, we generally carry out high temperature treatment.