The heating environment of the extruded cartridge heaters is quite special, which may lead to the following reasons:
1. Use low-cost materials to produce aluminum profile extrusion machine cartridge heaters, such as stainless steel 304 and stainless steel 201.
Solution: Since the working environment of the aluminum extrusion cartridge heater is in a state of constant high temperature, different extruders may have different working temperatures, but according to the case of most customers, the general extruder cartridge heater works on the temperature is kept above 300-500 degrees, so the material selection can not choose low-cost materials and low price, should choose stainless steel 321 seamless tube according to the actual working temperature, even use stainless steel 310S, at the same time,tube wall thickness should not be too thin, ≤1.0mm or more.
2. In order to reduce the cost of the cartridge heater of the aluminum profile extrusion machine, the common iron chromium aluminum alloy wire is selected for the core heating wire part.
Solution: Because the working environment of the aluminum tube extrusion cartridge heater is in a state of vibration, we should not only resist high temperature but also resist vibration when selecting the heating wire. Therefore, we have to choose nickel-chromium wire, nickel-chromium wire is very flexible, generally normal, we use nickel-chromium Cr20Ni80 resistance wire for customers.
3. No high temperature treatment is performed.
Solution: When you want to purchase cartridge heater for the aluminum extrusion tube , must tell the cartridge heater to be used on the aluminum extrusion machine, so that the supplier will understand your application and provide high temperature resistance. Also, choose Professional suppliers are also important.
If you want to know more about the cartridge heater for the aluminum extrusion machine, please feel free to contact us :info@heatersmfg.com.
