Shanghai Daoqin Plastics Co., Ltd.

        【 in in 线讯】 rotational molding molding and injection molding, blow molding and other is plastics molding process 之一.

         rotational molding molding process is will powder plastics mold, rear 旋转并 meanwhile add hot, inner powder material 逐渐熔 melt viscous mold cavity, cooling type made plastics product.

        旋转 molding concept 起源于 UK, 1855 year 第一项旋转 molding patent 问世. plastics also 未发明. 1934 year manufacturing 出 第一台 rotational molding molding machine, use polyvinyl chloride (PVC) rotational molding molding process production plastics 球, toys and other product.

        我国60 year 代开始, utilizing rotational molding molding production soft polyvinyl chloride (PVC) small 球; made 出容积200L and 1500L rotational molding polyethylene (PE) container and other. 90 year 代起开始 fast speed development.

         rotational molding molding features:

        1. manufacturing large type and large type product.

        2. equipment and mold selection property relatively more, property strong/high.

        3. product one-time molding, internal stress, easy deformation, 无接缝, strong/high degree high.

        4. more product types, small amount product.

        5. molding complex in product.

        6. Raw Materials, easy color color.

         rotational molding is non 常独特 processing methods, rotational molding raw materials, mold and molding technology 不断丰富 and 进步, rotational molding molding process will 不断完善, it day formed is types tool competition force plastics molding methods. its product development application tool has large force.