1, hot sleeve technology of motor resistance furnace
The hot sleeve technology of motor resistance furnace has the characteristics of low cost, simple process and high power consumption. Resistance heating furnace was widely used in the early mechanical manufacturing industry in China.
In the heating jacket device of resistance furnace, the heater generally adopts resistance wire. Resistance wire is a kind of high energy consumption element, which generates heat by consuming electric energy and raises the temperature of the surrounding environment by self-heating. In this environment, the container expands and cools by using the principle of thermal expansion and contraction, and when the hole of the container contracts, it hugs the contained part.
On the one hand, the traditional heating method of resistance furnace needs a long period of empty furnace heating, and the temperature control of resistance wire has some problems such as lag, high energy consumption and low efficiency. How to use some modern control technologies to shorten the heating time of resistance furnace, improve the temperature control accuracy of resistance wire and reduce some unnecessary energy consumption is the key to the development of resistance furnace hot sleeve technology.
On the other hand, the resistance wire, the core device used in the hot sleeve technology of resistance furnace, is always in a high temperature state, which is easy to be burned out due to high temperature oxidation, resulting in high maintenance cost, short service life and high rejection rate of hot sleeve workpieces. In view of this phenomenon, it is the key to find an excellent substitute for resistance wire heating device for the development of hot sleeve technology.
2. Thermal sleeve technology of infrared halogen lamp with high motor efficiency.
The heat sleeve technology of infrared halogen lamp tube with high motor efficiency is another stage of motor manufacturing technology development. Infrared radiation heating is a comprehensive new technology. Since 1970s, high-efficiency infrared halogen lamps have been widely used in the hot sleeve technology of motor stator and rotor assembly.