Hot runner heater

The working principle of a hot runner heater is that when a thick metal is in an alternating magnetic field, it will generate current due to electromagnetic induction. Thicker metals generate current, which forms a spiral flow path inside the metal. As a result, the heat generated by the current flow is absorbed by the metal itself, causing it to quickly heat up. This device is an energy-saving device for preheating or reheating fuel oil and a plastic melting channel constant temperature heating. It is installed before the combustion equipment to heat the fuel oil before combustion, reducing its viscosity and promoting full atomization combustion at high temperatures (105 ℃ -150 ℃), ultimately achieving the goal of energy conservation. It is widely used in the pre heating or secondary heating of fuel oils such as heavy oil, asphalt, and clean oil, as well as in the rubber and plastic manufacturing industry.

Precautions for use

1. The component is allowed to operate under the following conditions:

A. The relative humidity of the air is not greater than 95%, and there are no explosive or corrosive gases. (Excluding explosion-proof heaters)

B. The working voltage should not exceed 1.1 times the rated value, and the casing should be effectively grounded.

C. Insulation resistance ≥ 1M Ω, dielectric strength: 2KV/1min

2. Electric heating tubes should be properly positioned and fixed, and the effective heating area must be completely immersed in liquid or metal solids. Empty burning is strictly prohibited. When scale or carbon deposits are found on the surface of the pipe body, they should be removed and reused in a timely manner to avoid affecting heat dissipation and shortening the service life.

3. When heating molten metals or solid nitrate, alkali, asphalt, paraffin, etc., the operating voltage should be reduced first, and only after the medium melts can it be raised to the rated voltage.

4. When heating air, the components should be arranged in a cross and even manner to provide good heat dissipation conditions, so that the air flowing through can be fully heated.

5. When heating nitrate, safety measures should be considered to prevent explosion accidents.

6. The wiring part should be placed outside the insulation layer to avoid contact with corrosive, explosive media, and moisture; The lead wire should be able to withstand the temperature and heating load of the wiring part for a long time, and excessive force should be avoided when tightening the wiring screws.

7. The components should be stored in a dry place. If the insulation resistance is lower than 1M Ω due to long-term storage, they can be dried in an oven at around 200 ℃ or heated with reduced voltage until the insulation resistance is restored.

8. The magnesium oxide powder at the outlet of the electric heating tube should be protected from pollutants and moisture infiltration in the usage area to prevent the occurrence of electric leakage accidents

Component: This heating element is an important part of the hot runner system, and its heating accuracy and service life have a significant impact on the control of the injection molding process and the stability of the system. After shrinking, the steel pipe of the electric heating tube becomes hard and needs to undergo good deformation. Electric heating tubes must undergo high-temperature heat treatment to eliminate the mechanical tension of steel in order to be easily bent. After processing and forming, the heating strip can be manually bent into the channel groove. There are various shapes: heating rod, heating coil, tube heater, hot runner heating tube, spiral heater (heating coil), 6 * 6, 8 * 8 square heating tube specifications, etc. Widely used for splitter plate heating, hot runner heating, etc. The company's product specifications and sizes can be customized.

The heating rod is made of special production technology and high-quality materials, which are durable and ensure efficient operation in a tight space. Even when the temperature of the heating jacket reaches 700 degrees Celsius, it can operate normally. Manufactured according to metric and international standards, all models are based on VDE0721 quality inspection requirements, which can meet the needs of most machines, factories, etc. that use heating elements