Plastic injection (plastic) mold
It is mainly a molding mold which is most commonly used in the production of thermoplastic parts. The processing equipment corresponding to the plastic injection molding mold is a plastic injection molding machine. The plastic is first heated and melted in the heating barrel of the injection machine, and then in the injection machine. Pushed by the screw or the plunger, the injection system of the nozzle of the injection machine and the mold enters the mold cavity, and the plastic is cooled and hardened to form a product. The structure is usually composed of a molded part, a pouring system, a guiding part, a pushing mechanism, a temperature regulating system, an exhaust system, a supporting part and the like. The manufacturing materials usually use plastic mold steel modules. The commonly used materials are mainly carbon structural steel, carbon tool steel, alloy tool steel, high speed steel and so on. The injection molding processing method is usually only applicable to the production of thermoplastic
Plastic Products. The plastic products produced by the injection molding process are very wide, from daily necessities to various complicated machinery, electrical appliances, vehicle parts, etc., which are molded by injection molding. It is the most widely used processing method in the production of plastic products.
Plastic compression mould
It includes two types of structural molds, compression molding and injection molding. They are a type of mold that is mainly used to form thermoset plastics, and the corresponding equipment is a pressure forming machine. The compression molding method is to heat the mold to the molding temperature (generally 103 ° C - 180 ° C) according to the characteristics of the plastic, and then put the metered plastic powder into the mold cavity and the feeding chamber, close the mold, and the plastic is in high heat and high pressure. The softening viscous flow underneath, after curing for a certain period of time, it becomes the shape of the desired product. Different from injection molding and compression molding, a separate feeding chamber is provided. Before molding, the mold is closed first, and the plastic is preheated in the feeding chamber to be in a viscous flow state, and is extruded into the mold cavity at a high speed under pressure to harden the molding. Compression molds are also used to mold certain special thermoplastics such as difficult-to-melt thermoplastic (such as Teflon) blanks (cold press molding), optical lenses with high optical properties, lightly foamed nitrocellulose car steering wheels, etc. . The compression molding die is mainly composed of a cavity, a feeding cavity, a guiding mechanism, a pushing part, a heating system and the like. Injection molds are widely used to package electrical components. The material used in the manufacture of compression molding is basically the same as that of the injection mold.
Plastic extrusion mould
It is a kind of mold used to form plastic products with continuous shape. It is also called extrusion molding machine head. It is widely used in the processing of pipes, bars, monofilaments, plates, films, wire and cable coatings, profiles and so on. The corresponding production equipment is a plastic extruder. The principle is that the solid plastic is melted and plasticized under the conditions of heating and extrusion screw rotation of the extruder, and the cross-section and the shape of the die are made through a specific shape of the die. Continuous plastic products. The manufacturing materials mainly include carbon structural steel, alloy tool steel, etc. Some extrusion dies are also embedded with wear-resistant materials such as diamond on the parts that need wear resistance. Extrusion processing is usually only applicable to the production of thermoplastic products, which are structurally distinct from injection molds and compression molds.
Plastic blow mould
It is a kind of mold used to mold hollow containers of
Plastic Containers (such as beverage bottles, daily chemical products, etc.). The form of blow molding mainly consists of extrusion blow molding, injection molding and blow molding. Injection stretch blow molding hollow molding (commonly known as "injection blow"), multi-layer blow molding hollow molding, sheet blow molding hollow molding, and the like. The equipment corresponding to blow molding of hollow products is usually called plastic blow molding machine, and blow molding is only suitable for the production of thermoplastic products. The blow mold structure is relatively simple, and the materials used are mostly made of carbon steel.
Plastic blister mould
It is a kind of mold which is formed by using plastic plates and sheets as raw materials to form some simple plastic products. The principle is to use a vacuum forming method or a compressed air forming method to fix the plastic plates and sheets fixed on the die or the punch. When heated and softened, it is deformed and attached to the cavity of the mold to obtain the desired molded product, which is mainly used for the production of some daily necessities, foods, and toys. Because the pressure of the plastic mold is low during molding, the mold material is mostly made of cast aluminum or non-metal material, and the structure is relatively simple.
High expansion polystyrene molding die
It is a mold for forming foamed packaging materials of various desired shapes by using expandable polystyrene (beads composed of polystyrene and foaming agent). The principle is that the polystyrene can be steamed into the mold, including simple manual operation molds and hydraulic machine straight-through foam plastic molds, mainly used for the production of packaging products for industrial products. The materials for manufacturing such molds are cast aluminum, stainless steel, bronze, and the like.
Such as plastic gift box , plastic Jewelry Box , Plastic Storage Box and so on ,all need mold to produce them .
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