casting heaters
2015-9-6 22:16:04
Introduction
Main purpose
Widely used in plastic machinery, mold, cable machinery, alloy die-casting machine, pipe, chemical, rubber, oil and other equipment.
Note
1, working voltage shall not exceed 10% of the rated value of the relative humidity of the air is less than 95%, no explosive and corrosive gases.
2, the wiring part of the heating layer, insulation layer, the shell should be effectively grounded; avoid and corrosive, explosive medium, water contact; lead to a long time to withstand the junction temperature and heating load, wiring screw fastening should avoid excessive force.
3, metal casting heater should be placed in a dry place, if the long-term placement, insulation resistance is lower than 1M, can be in the oven for about 200 degrees Celsius 5-6 hours, you can return to normal. Or reduce the voltage on the electric heating until the restoration of the insulation resistance.
Heater should be fixed 4, metal casting, effective heating zone must be heated body tightly, no air burning. It is found that the surface has dust or contaminants, should be cleaned and then, to avoid affecting heat and shorten the service life.
5, an electric heating tube outlet end of magnesium oxide powder, used in place to avoid contamination and the ingress of moisture, prevent the occurrence of leakage accident.
Specifications
1, cast aluminum, cast copper heater: the casting tubular electric heating element in aluminum, copper solution compressed into different shapes of the heater. Mainly used in plastic machinery, oven, water heater, pipeline and non corrosive liquid heating temperature.
2, cast iron heater: the electric heating tube is cast in the iron solution, widely used in the system of lock, zipper, hardware, toys and other manufacturers of die casting machine. Also called gooseneck nozzle heater heater. Divided into two kinds: a kind of electric heating tube in copper casting, a heating pipe cast in iron.
3, all kinds of special needs of electric heating castings: according to customer needs can be customized all kinds of electric heating castings.
In high temperature resistant stainless steel seamless steel tube is evenly distributed high temperature resistance wire, in the dense part of the space filled with thermal conductivity and insulation performance are good crystalline magnesium oxide powder, the structure is not only advanced, high thermal efficiency, and uniform heating. When current passes through the high temperature resistance wire, heat generated by crystallization of magnesium oxide to the metal tube surface diffusion, then transferred to heating or air, can reach the heating purpose.