First, the principle of electromagnetic heating power saving:
At present, the heating method used in plastic machinery on the market is generally electric heating coil heating, through contact conduction to transfer heat to the barrel, only the heat close to the inside of the surface of the barrel is transferred to the barrel, most of the heat on the outside is lost to the air, there is a heat conduction loss, and lead to an increase in ambient temperature, in addition, resistance wire heating has another disadvantage is low power density, in some occasions that require higher temperature can not be adapted. Electromagnetic heating technology is to make the metal barrel itself heat, and can be wrapped in a certain amount of thermal insulation material outside the barrel according to the specific situation, which greatly reduces the heat loss and improves the thermal efficiency, so the power saving effect is very significant, up to 30% ~ 80%.
The electromagnetic heating system consists of two parts: the electromagnetic heating controller and the induction coil. The original unit is controlled by temperature (heating output contactor or solid-state relay output) through the electromagnetic heating controller to rectify and filter 50HZ alternating current into direct current, and then through the PWM control circuit to reduce direct current into a frequency of 18-24KHZ high-frequency current, high-frequency alternating current through the insulation material on the barrel, through electromagnetic induction to heat the barrel itself. In addition, the power supply can also be directly input to the electromagnetic heating controller, and the original temperature controller is directly used to control the electromagnetic heating controller.

Shenzhen China Resources Technology Co., Ltd. has been engaged in the research and development and manufacturing of electromagnetic heating technology for many years, professional, attentive and specialized in the application of electromagnetic heating industry, and is the earliest enterprise in China to enter this field of research, accumulating countless valuable experience. After more than 10 product upgrades, it has gradually developed into the most stable supplier of electromagnetic heating control panels today. The electronic components of the electromagnetic heating control board produced by the company now adopt industrial-grade devices, and the products fully meet the industrial-grade standards. At present, more than 800 enterprises and individuals have used our products, which are widely used in plastic wire drawing, film blowing, granulation, injection molding machines and other energy-saving transformation; As well as oil pipeline heating, cable production extruders, extruders, extruders, thermoplastic pipes, profile production and other heating.

Second, the advantages of the application of electromagnetic heating control board in the heating system of plastic machine:
The following is a column of injection molding machines to illustrate the application advantages of electromagnetic control panels. The use of electromagnetic heating method can not only completely replace the existing traditional resistance wire heating method, but also has many obvious advantages over the traditional heating method, such as: 1. Save electric energy and reduce ambient temperature; 2. Rapid heating, real-time and accurate temperature control; 3 Long service life, simple maintenance and high power; 6. Safe and reliable.
1, save electric energy and reduce the ambient temperature, the heating method used in the barrel of plastic machinery on the market is generally the traditional electric heating ring heating, through the contact conduction method to transfer the heat to the barrel, only close to the barrel surface of the heating wire heat transfer to the barrel, most of the heat outside the heating ring is lost to the air, there is heat conduction loss, and at the same time cause the ambient temperature to rise. When using electromagnetic induction heating, because there is no direct contact between the heating coil and the barrel, the metal barrel itself is heated by magnetic field magnetic field lines, and a layer of thermal insulation material is wrapped outside the barrel to reduce heat conduction loss, so the ambient temperature is greatly reduced. After experimentation, testing and modification, the power-saving effect is 30%-80%, especially for high-power injection molding machines.
2. Rapid heating, real-time and accurate temperature control, electromagnetic heating method is through magnetic field magnetic field lines to make the metal barrel itself quickly heat, heat energy is generated by the barrel metal as a whole, temperature control real-time accurate, the temperature inside and outside the barrel is consistent, obviously improve the quality of the product and improve production efficiency.
3. Long service life and simple maintenance The traditional heating ring heating method is to use resistance wire to heat up, and the resistance wire will oxidize in a high temperature and harsh environment for a long time, resulting in a reduction in its service life. The electromagnetic heating coil itself does not generate heat, and is made of insulation material and high-temperature wire, so it has a long service life and no maintenance.
4. High power, electromagnetic heating method with the development and maturity of technology, component production technology and technology improvement, reliable protection of software, etc., the current power can be 1.5-35KW.
5. Safe and reliable, using electromagnetic induction heating, the surface temperature of the machine can be reduced, and the human body can be safely touched; Avoid burns and scalding accidents caused by traditional heating methods; The production safety of employees is protected. The electromagnetic radiation is only 1% of the intensity of the mobile phone, and there is no harm to the human body.

Third, the application scope of electromagnetic heating control board products: 1. Plastic and rubber industry: plastic film blowing machine, wire drawing machine, injection molding machine, rubber extruder, vulcanizing machine, cable production extruder, etc.

2. Pharmaceutical and chemical industry: pharmaceutical infusion bags, plastic equipment production lines, chemical industry liquid heating pipelines, etc.
3. Energy and food industry: heating of crude oil transmission pipelines; Food machinery, dryers and other equipment that requires electric heating.
4. High-power commercial induction cooker movement, high-power electric water heater.
5. Building materials industry: gas pipe production line, plastic pipe production line, PE plastic rigid flat mesh, geomesh unit, automatic hollow molding machine, PE honeycomb panel production line, single and double wall corrugated pipe extrusion production line, composite air cushion film unit, PVC hard pipe, core foam pipe production line, PP extruded transparent sheet production line, extruded polystyrene foam pipe, PE winding film unit.
6. Drying and heating in printing equipment.
7. Heating in other similar industries.