The extrusion molding method of a single-screw plastic extruder
Time：
2017-06-03
Extrusion is one of the earliest forming processes in the plastics processing industry and remains a primary method for shaping plastics. It can be used to process most thermoplastics as well as a limited number of thermosets. The resulting plastic products include pipes, rods, sheets, plates, profiles, films, monofilaments, flat tapes, wires and cables, and meshes; with appropriate auxiliary equipment, it can also produce various hollow containers and woven bags, enabling the continuous production of plastic articles. Extrusion involves forcing heated or unheated plastic through a die to form continuous products. The molten material must be shaped into the desired configuration and then cooled to a solid state.
Extrusion is one of the earliest forming processes in the plastics processing industry and remains a primary method for shaping plastics. It can be used to process most thermoplastics as well as a limited number of thermosets. The plastic products manufactured by extrusion include pipes, rods, sheets, plates, profiles, films, monofilaments, flat tapes, wires and cables, and meshes. When equipped with appropriate auxiliary machinery, it can also produce various hollow containers, woven bags, and other items, enabling the continuous production of plastic goods.
Extrusion molding is a process in which heated or unheated plastic is forced through a die to produce continuous extruded products.
The molten material must be shaped into the desired form and then cooled to a solid state, thereby becoming the finished product. These products include customer‑specified profiles (such as automotive trim strips, window sills, various molded parts, and edge trims), sheets (including window glass edging strips and vacuum‑formed items like cups, plates, and refrigerator liners), pipes, fibers, films (for bags, packaging, laminates, and more), coatings (for wire insulation and pipe linings), blow‑molded products (such as bottles and automotive fuel tanks), and pellets (thermoplastic compounds containing various additives, which are granulated for subsequent extrusion). The polymers used to manufacture these products are predominantly thermoplastic materials.
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