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Processing characteristics of plastic shell of power supply

Release time:2023-08-23

In practice,Power supply plastic shellThe common processing of the die mainly includes a die with a variable cavity composed of a die combination base plate, a die assembly and a die combination, a die with a variable core composed of a chuck of a power supply plastic shell mold, and a punch with a variable core composed of a punch combination base plate, a punch assembly, a punch combination chuck, a cavity cutting assembly and a side combination plate. Coordinated change of die punch, die and auxiliary molding system.

1. The mechanical strength is widely distributed and the strength is high: some of the processing products of the plastic shell of the power supply are hard products such as stone and steel, and some are soft products such as paper and leather; From the mechanical properties of plastics, such as hardness, tensile strength, elongation, impact strength, etc., it has a wide range of distribution and many uses.

2. Excellent chemical stability: most plastics have good corrosion resistance to acid, alkali and other chemicals. In particular, the chemical stability of polytetrafluoroethylene (F4), commonly known as the king of plastics, is even better than that of gold. It will not deteriorate after boiling in "aqua regia" for more than 10 hours.

3. Excellent electrical insulation performance: the products processed by the plastic shell of the power supply are all poor conductors, with large external resistance and volume resistance. The digital display can reach 109-1018 ohms. Therefore, plastics are widely used in electronic industry and machinery industry. At present, many plastic shell processing enterprises in Dongguan are also gradually listed. The materials used include PC, PETG, PVC, pet, high resistance PS and other materials with good toughness.


The process flow of the plastic shell of the power supply is as follows:

1. Printing: almost all flat plastic shells can be printed. It can be processed according to its requirements. However, it is generally carried out in the dust-free workshop, and the printing effect of the plastic shell of the power supply will be better.

2. Bonding: the processing technology of the plastic shell of the power supply is to use imported special adhesive to bond PC, acrylic and other plastic shell materials to ensure the strength of bonding, the position of bonding is not misplaced, the accuracy is high, no deformation, no cracking, and the appearance is good.

3. Polishing: the polishing of the plastic shell of the power supply is mainly used for the subsequent processing of the cutting or engraving parts of the plastic shell.

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