How are plastic molds classified?
Mould is an important technological equipment in modern industry and an indispensable part in the production of many industrial products.Since China's entry into the WTO, its ability to attract foreign investment has been increasing year by year, and it has become a world product manufacturing factory with more and more prominent status, and more and more imports of various industrial products and molds.
The type of mold is usually carried out in accordance with the process of processing object and different classification, from the industry point of view to see the distinction between the main plastic mold, rubber mold, metal cold punching mold, metal cold extrusion die and hot extrusion die, metal drawing dies, powder metallurgy mold, metal die-casting mold, metal precision casting die mold, glass, glass fiber reinforced plastic mould and so on.
The most common forming methods of plastics are melt forming and solid forming.Is melt molding plastic heated to melting point above, make the molten forming way, belong to the molding methods of molding process mainly include injection molding, molding (shrinkage) molding, extrusion molding, etc;Solid - phase forming is a kind of forming method for plastics to remain solid under the melting temperature, such as vacuum forming, compressed air forming and blow molding produced by some plastic packaging containers.In addition, there are liquid forming methods, such as casting molding, enameling and dip forming.
According to the different method of molding, can be divided into corresponding to different technical requirements of plastic processing mold type, mainly include injection molding, extrusion molding, compression molding mold, blow molding mold, high vacuum forming mould, expanded polystyrene molding, etc.