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          Mobile phone shell processing after what?

          Time:2014-12-08 17:24:06Source:stationBrowse the number:1522

          Mobile phone shell processing after spraying, spraying, usually with chromatic printing, printing, electroplating, sandwich vacuum evaporation, nut, annealing, ultrasonic welding, spraying, electroplating through after processing method can improve the appearance effect of plastic mobile phone shell.

          At the same time can improve the abrasion resistance performance of the plastic surface treatment method of ultrasonic welding, then can increase the number of insert for easy assembly, mobile phone shell annealing can eliminate internal stress of products, improve product performance.

          From design, open mold, mobile phone shell, after debugging production, processing the entire process is linked together, only the integrated the following factors: reasonable structure and appearance design, precise mould, reasonable process debugging, stable production and excellent after treatment to produce a set of exquisite and durable mobile phone shell.

          There is a great relationship between firing rate and the gate design, the use of direct gate or edge gate, to prevent the Rihui phenomena and flow marks phenomenon, rate of fire, the application of a slower also, such as the finished thickness above 5MM, slow injection helps to avoid bubbles or depression.
          Generally speaking, the principle of firing rate for thin fast, thick slowly, from injection switch to holding pressure, holding pressure should be as low as possible, so as to avoid forming product residual stress, and residual stress can be used to remove or reduce the annealing, the condition is 120 to 130 DEG C for about thirty minutes to an hour.
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