Extrusion refers to a processing process in which the plastic is heated and melted and extruded from the molding port by the screw, and the mold is cooled and solidified. Extrusion molding has high production efficiency and low cost, and is suitable for mass production. In addition, extrusion is achieved by adding pigments and additives to achieve the appearance diversity of the casing.
Vacuum casting, etc.
Vacuum casting is a processing process in which plastic powder is heated to a molten state, sprayed into a mold, and then removed by vacuum adsorption to remove bubbles, and finally cooled and solidified. Vacuum casting can make complex shape casings with better mechanical properties of materials. Vacuum casting is suitable for small batches, medium batches.
In addition to the above processing methods of commonly used plastic casing, there are also special processing methods such as hot press molding, rotary molding and three-dimensional hot press molding. The selection of appropriate processing methods should be comprehensively evaluated in combination with the design requirements of the casing, cost considerations and production cycle.
The selection of plastic casing processing methods not only affects the quality and appearance of the casing, but also has a direct relationship with production cost and production efficiency. Therefore, in the processing of plastic casings, it is necessary to select the appropriate processing method according to the specific situation to meet the needs and improve production efficiency.