Hot nozzle is an important part of hot runner system. And there are 2 types nozzle for hot runners: open type and needle valve type. Among them, the open nozzle is divided into point gate tip nozzle and large nozzle, while the tip of needle valve nozzle is large nozzle. Hot runner system is widely used in electronic and electrical appliances, automobile, electronics, radio communication, medical treatment, packaging, daily necessities and other industries.
Hot Runner System
Hot Tip Hot Runner System
Hot tip hot runner system is one of the most widely used hot runner systems. Each hot runner supplier provides this system. Although the shapes and sizes of nozzles and nozzle inserts on systems from different manufacturers are different, the working principle is very consistent. The tungsten steel nozzle used as a supporting device for precision equipment is especially suitable for the use of high-end precision equipment because of its good physical stability and long service life. The superhard metal material tungsten steel prepared by powder metallurgy technology has the advantages of high strength, high hardness, wear resistance, corrosion resistance, high temperature resistance and low coefficient of thermal expansion. It is widely used in many hot runner systems and is one of the best tool materials.
Tungsten Cemented Carbide Hot Runner Tip
Needle valve hot runner is divided into cylinder needle valve hot runner, cylinder needle valve hot runner and spring needle valve hot runner. The hot runner of cylinder type needle valve adopts air pressure to push the valve needle to open or close the gate to complete the glue injection mode. This method is convenient to use because there is ready-made compressed air in the injection workshop and the air connecting pipe is directly input into the hot runner cylinder, but the air pressure is limited and is also used by a large number of users. Because the hot runner of oil cylinder needle valve adopts hydraulic pressure to push the valve needle to open or close the gate to complete the glue injection mode, it needs to be connected with the oil pressure pipe to input into the hot runner cylinder.
Due to the high hydraulic pressure, this method is often used for injection molding of plastic parts with large surface area and wall thickness. The hot runner of spring needle valve adopts the mode of locking spring compression to push the valve needle to open or close the gate to complete glue injection. The pressure adjustment is relatively small, but it is convenient to use and few users.
Tungsten Cemented Carbide Hot Runner Tips
The use of high-precision equipment requires its supporting nozzle to be based on good and stable physical properties, especially the long-life operation with high temperature resistance and corrosion resistance. Therefore, tungsten cemented carbide is undoubtedly the first choice for hot runner tips. From the use and selection of raw materials to the completion of tungsten cemented carbide proportioning production and subsequent finishing, CTIA has many years of experiences and technical accumulation in the design and production of various tungsten cemented carbide nozzles. We also have many years of successful experience in the customization of cemented carbide nozzles for customers. Any details, please visit our site or contact us directly.
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