The cast aluminum electric heater is a tubular electric heating element as the heating element, which is reasonably bent and formed. After entering the mold, it is cast into various shapes with high-quality aluminum alloy materials, including disc type, flat plate, right angle type, external air cooling, and internal air cooling. , Water cooling and other special shapes, etc. After finishing processing, the cast aluminum electric heater has a smooth surface and no casting defects. It can be closely attached to the heated body. The surface load of the cast aluminum heater can reach 1-3W/cm². The working temperature is from room temperature to 350℃. A high-efficiency and uniform thermal division heater; aluminum alloy material with excellent thermal conductivity ensures uniform temperature of the hot surface and reduces the temperature difference on the surface of the equipment; has a long life, good insulation performance, strong mechanical performance, corrosion resistance, Anti-magnetic field, add heat preservation device to the heat dissipation surface, which can save about 30% of electricity.
It is widely used in extruders, injection molding machines, vulcanizers, hydraulic presses, ultrasonic cleaning machines, semiconductor manufacturing, medical equipment, cable machinery, petroleum and other equipment.
Precautions:
1) The working voltage shall not exceed 10% of the rated value;
2) The wiring part is placed outside the heating layer and insulation layer, and the shell should be effectively grounded;
3) The cast aluminum electric heater should be placed in a dry place. If the insulation resistance is lower than 1MΩ due to long-term storage, it can be baked in an oven at about 200 degrees Celsius for 5-6 hours to return to normal.
4) Positioning and fixing should be done, the effective heating area must be closely attached to the heated body, and empty burning is strictly prohibited. When dust or contaminants are found on the surface, they should be cleaned up in time to avoid heat dissipation and shorten the service life.
5) The magnesium oxide powder at the outlet end of the electric heating element should avoid the infiltration of pollutants and moisture in the place of use to prevent leakage accidents.
Technical Parameters:
1. Conditions of use: ambient temperature -20℃～+60℃; relative humidity <80%.
2. Electric strength: it can pass the voltage 1500V50HZ sinusoidal alternating current withstand voltage test, and there is no breakdown when the voltage is 1M1N.
3. Leakage current: <0.5MA.
4. Insulation resistance: >2MΩ.
5. Grounding resistance: <0.1Ω.
6. Power deviation value: +5%～-10%.
