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 heating ring 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.
The cast aluminum electric heating coil is a tubular electric heating element as the heating element, the element is bent into a mold, and the aluminum is cast into various products. It can be closely attached to the heated body, has the characteristics of uniform heating, good thermal conductivity, and long service life. This product is currently one of the ideal heaters at home and abroad. A thermal insulation layer can be added to the outside of the heater according to user needs, which has higher thermal efficiency and can save electricity by about 20%. Mainly used for heating and heating plastic machinery, ovens, boilers, pipes and non-corrosive liquids