Cast aluminum heating plate is made by casting aluminum around the elements, mainly used for plastic extruders, injection molding machines, and heating of various metal outer diameters. This product features easy installation, low heat loss, fast heat transfer, and power saving. It has been widely used in industries such as rubber/plastic machinery, chemical/food machinery, electronic/packaging machinery, etc.
Technical Characteristics
Metal cast heaters use tubular electric heating elements as the heating body, which are bent into shape and then cast with high-quality metal alloy materials as the shell using centrifugal casting to form various shapes, including round, flat, right-angle, air-cooled, water-cooled, and other special shapes. After precision machining, they can closely fit the heated body.
The surface load of cast aluminum electric heaters can reach 2.5-4.5 W/cm², with a maximum working temperature between 300-450°C;
Cast copper heaters have a surface load of 3.5-5.0 W/cm², with a maximum working temperature between 500-600°C;
Cast iron heaters have a surface load of 4.5-6.0 W/cm², with a maximum working temperature between 550-700°C.
Cast aluminum heating plate is a highly efficient heater with uniform heat distribution. The excellent thermal conductivity of the metal alloy ensures uniform surface temperature, eliminating hot and cold spots on the equipment. It has advantages such as long life, good thermal insulation, strong mechanical properties, corrosion resistance, and anti-magnetic field. Adding insulation devices to the outer heat dissipation surface and sintering infrared rays on the inner heat dissipation surface can save up to 35% electricity.
Precautions for Using Cast Aluminum Heating Plate
1. The working voltage must not exceed 10% of the rated value; relative air humidity should not exceed 95%, and there should be no explosive or corrosive gases.
2. The wiring part should be placed outside the heating layer and insulation layer, and the shell should be effectively grounded; avoid contact with corrosive, explosive media, and moisture; the lead wires should be able to withstand the temperature of the wiring part and the heating load for a long time, and avoid excessive force when tightening the wiring screws.
3. Metal cast heaters should be stored in a dry place. If the insulation resistance is lower than 1 MΩ due to long-term storage, it can be restored by baking in an oven at about 200°C for 5-6 hours, or by reducing voltage and energizing for heating until the insulation resistance is restored.
4. Metal cast heaters should be properly fixed and positioned, and the effective heating area must be in close contact with the heated body. Dry burning is strictly prohibited. If dust or contaminants are found on the surface, they should be cleaned promptly before reuse to avoid affecting heat dissipation and shortening the service life.
5. The magnesium oxide powder at the outlet end of the electric heating tube should be protected from contaminants and moisture at the use site to prevent electric leakage accidents.
If needed, please contact Mr. Li at 15252680129. We look forward to cooperating with you. Integrity first!
This product supports custom processing. Type: cast aluminum heating plate. Brand: Tianqi. Model: round. Power: 3000 (W). Surface dimensions: 400*25 (mm). Main application: mold bottom heating.
