Cast aluminium heating ring can be divided into die casting and casting casting casting. Casting technology is generally used in the occasion of more specifications and sizes. High purity aluminium block is used in casting production, which is converted from solid to liquid by high temperature furnace, and then injected into the mold which has already installed heating pipe. After cooling and forming, it is made by finishing machining.
The normal thickness of the cast aluminium heating ring is 20mm and 25mm. The inner wall of the 25 mm wall thickness electric heating ring is designed with concave and convex wind groove structure. The purpose is to prevent the inner heating pipe from overheating when used. For example, when the temperature is high, the inner wall can be cooled by wind or water, so that it can quickly reach the standard temperature. At the same time, the heating ring is basically divided into two semi-circular circles, and then fixed by the use of fixed bolts to install it.
Temperature measuring air is mainly used to collect the temperature signal occasion, usually in the cast aluminum heating ring arc surface according to its design size hole, used for the installation of thermocouples.