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The Relevant Characteristics Of Vacuum Forming And The Application Of Production

   Vacuum forming is widely used to produce calcium-plastic ceiling decorative materials, washing machines and refrigerator shell, motor shell, art and daily necessities. The so-called vacuum forming, refers to rely on the vacuum pump mold and heated thermoformed sheet (plate) between the material into a vacuum state, resulting in sheet (plate) material from top to bottom pressure difference, so that the sheet tightly covered in the mold surface molding Methods. Vacuum forming can be divided into single-Yang model (punch) single female mold (die), no mold and other forms.Vacuum Forming

    1, single Yang mold vacuum forming

Single-Yang mold vacuum molding, also known as punch vacuum forming, covering vacuum forming or vacuum forming. The process is a plastic sheet with a folder clamped after heating, vacuum holes open on the convex model surface, the sheet softened after the folder down or punch on the shift, so that the sheet was stretched to the folder Box and punch around the contact and sealed, the punch vacuum, the pressure of the sheet to cover the surface of the punch shape. By cooling stereotypes, blown stripping, after finishing to get parts.Vacuum Forming

    2, single negative mold vacuum forming

Single vacuum mold vacuum molding, also known as die vacuum forming, direct or simple molding. The process is the sheet is held on the die, the lower mold cavity has a vacuum hole, the die is both a vacuum chamber and a molding cavity. After the sheet is heated and softened, the die is evacuated, and the pressure difference between the atmospheric pressure and the vacuum causes the sheet to be stretched and adhered to the concave mold cavity. After the molding is carried out, the mold is blown and blown and demolded.Vacuum Forming

    3, no mold forming

No mold of the vacuum molding, said mold-free molding, also known as free molding. This molding method is used to blow various hoods Vacuum Forming

    The main advantage of vacuum packaging is to save raw and auxiliary materials, light weight, easy transportation, good sealing performance, in line with the requirements of environmentally friendly green packaging; can be packaged any shaped products, packing without additional cushioning material; transparent transparent packaging products, shape Beautiful, easy to sell, and suitable for mechanization, automated packaging, easy to modern management, save manpower, improve efficiency.