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[Chemical Knowledge]：Understand the working principle of heating sleeve and improve production efficiency

Read： 355 Time：20months ago Source：Transform the World with Simplicity

The heating jacket is a commonly used heater in industrial production and is widely used in all walks of life. Different from regular heating equipment such as stoves, the heating jacket is characterized by large heating surface, fast heat transfer and controllable temperature. Let's take a look at the working principle of the heating jacket.

1. heating materials and power transmission

heating elements inside the heating jacket are generally divided into two types: ferrite and alloy materials. Ferrite heating elements have the characteristics of fast temperature rise and high power density, and are suitable for heating in high temperature, medium and low temperature environments; alloy heating elements have the advantages of oxidation resistance and long life, and are suitable for high temperature and long-term use.

When electrical energy is transferred into the heating element, the heating element will generate heat due to the electrical resistance. Under the covering of the heating jacket, the heat generation of the heating element will be directly transferred to the heated object, so as to realize the heating of the object.

2. temperature control principle

In order to make the heating effect of the heating jacket better and more stable, the temperature must be precisely controlled.

Usually, the temperature control of the heating jacket uses PID adjustment technology, that is, proportional, integral, differential three factors are controlled at the same time. The control electric signal generated by the PID is output to the heating jacket via an SSR (semiconductor relay). Then, the temperature of the heated object is collected by the thermocouple, thermistor and other sensors inside the heating sleeve, and fed back to the PID to realize the closed-loop control of the temperature.

3. Application Scenarios

heating sleeves are widely used in various industrial production fields. At present, the main application scenarios on the market are the following:

1. Casting mold heating: heating sleeve through the heating of the mold, improve the fluidity of casting, shorten the molding time.

2. plastic mold heating: heating sleeve can realize the plastic mold heating, heat preservation, cooling, thereby improving the service life of plastic mold.

3. vulcanized rubber heating: vulcanized rubber needs to be heated at high temperature, and the heating sleeve is the ideal tool to meet this requirement.

heating sleeve plays an irreplaceable role in industrial production. Mastering the working principle of the heating sleeve can be better applied to actual production, improve work efficiency and reduce costs. If you have relevant requirements for heating sets, please choose a regular manufacturer to purchase to ensure product quality and after-sales service.