Heating Form of The Manifold Plate
- Details
- Category: Molybdenum knowledge
- Published on 31 March 2015
- Written by limei
- Hits: 186
Heating form of the manifold plate is divided into internal heating and external heating. Compared with the external heating, Internal heating has high thermal efficiency, but prone to localized overheating, and the flow resistance of the melt increases, the need to use high-pressure molding, plastic parts may cause greater stress. While in the heating mode with a small heat loss, easy to leakage of material, etc., But because of other aspects of the manufacturing process is not yet mature, the current common runner boards with external heating. External heating is heated from the outside flow channel the flow channel, usually set up on a road parallel to the direction of heat flow hole, interpolation heating rods or install heating coil, this indirect heating plus hot runner plastic, does not produce local overheating, the flow path of the melt flow resistance is small, easy to process the flow channel, the heating device is easy to buy, easy maintenance and replacement after a failure. External heating with an electric heater and electric heating rods, tubular heating pipe can be bent into various shapes embedded in the manifold groove, easy to use, easy temperature balance.
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