External heating hot runner nozzle
- Details
- Category: Molybdenum knowledge
- Published on 25 March 2015
- Written by limei
- Hits: 351
In the injection molding hot runner mold, hot runner nozzle is the most basic element. Heat transfer heat at the nozzle is an important part of the hot runner mold. The heating of hot runner nozzles can be divided into internal and external heating heating.
Heat hot runner nozzle complex internal structure, but high efficiency. Externally heated by external heating nozzle is a way to make the melt channel is kept molten state. Electric coil wrapped around the system by varying degrees of density to make the nozzle melt heat evenly. Simple structure, the outer periphery of the nozzle assembly and disassembly easy heating coil, as shown in FIG. Generally use a special heating coil or heating pipes can also be self-winding. Together with the thermocouple temperature control device, can melt within the nozzle to maintain the necessary temperature in a continuous injections. Simple external heating nozzle structure, according to the heating curve heating coil design layout, uniform heating throughout the nozzle. This nozzle for a wider scope, and more for less demanding parts of the gate mark.
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