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      1. Hello, Welcome  BST ART International Corporation Limited!

         

         BST ART International Corporation
         Limited

        Tel:  +86 0769-83062999

        Fax: +86 0769-85969488

        Address: Dongguan City Houjie town of Bao Tong industrial area

        Introduce the production process of plastic packaging materials

        1: making packaging mold suction and processing: according to the requirement of specifications or samples, first make good packaging plastic materials, mold, under general conditions, are made of plastic packaging mold using gypsum, but also useful to wood and metal engraving products mold, plaster mould ready, let it dry naturally completely or drying then, according to the product surface and specific situation, drilling drill many holes in does not affect the product packaging appearance of the valley with 1 - 2 mm, if such products packing box, also drilled some holes in the four on the periphery, in order to plastic production, air can be drawn, mold drill hole, also the plaster mold hardening, hardening treatment with concentrated alum saturated solution after soaking.

        2: plastic packaging mold processing dry completely, will die in the vacuum chamber on the upper plate, and then according to the size of the mold, plastic chip carrier into suitable size, then this sheet is placed in a heating wood cabinet, so that it is completely fixed, then the wooden cabinet together with the plastic sheet set constant temperature furnace in softening process.

        3: the plastic softening treatment good together with the wooden cabinet, placed in the vacuum chamber, start the suction switch, vacuum suction clean indoor air, the plastic sheet is obtained after cooling, concave packaging or process dies and molds of the same.

        4: Blister packaging materials, finishing; the product produced trimming finishing is finished product, and then packaged to sell.

        Hits:  UpdateTime:2013-06-22  【Printing】  【Close
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        被黑人肉体暴力强奷在线播放,人妻互换免费中文字幕,日本被黑人强伦姧人妻完整版