What is injection mold?What are the features?
As is known to all, the molds used in plastic injection molding are called injection molding molds, or injection moulds for short.
With the rapid development of the plastics industry, the demand for plastic products is increasing, and plastic products with newer styles, better quality, better performance and more complex structure are also emerging.
Injection products are produced by molding.Forming method are many, and injection molding is one of the most important kind of forming method, its production of products with high precision and complicated shape, good consistency, high productivity and low consumption etc, have great market demand and broad prospects for development.
As the main tool of injection molding processing, one of the injection mold, the quality, accuracy, manufacturing cycle and injection molding production efficiency in the process of the level of high and low, directly affect the quality of injection molding products, production, costs, and upgrading of products.Therefore, injection mold plays a vital role in the production of plastic products.Generally speaking, injection mold features the following aspects:
(1) design is difficult plastic polymer materials, its melt are sticky projectile, melt flow process change with shear stress, shear rate, and the flow process in the macromolecular orientation along the flow direction.It is part of the compression after full of cavity, and in the process of cooling solidification of plastic shrinkage is very complex, each part of the mold cavity and the shrinkage rate of different directions are different, and different kinds, grades of resin shrinkage also have very big difference, should be in the design of injection mold
Pay attention.
(2) manufacturing high cost of the mould is aimed at a specific design of the shape of the plastic products, specifications, all kinds of mold structure vary widely, therefore, it cannot buy at random in the market, it is impossible to batch production.
Because of the difficulty of design and manufacture, the life of the mould is long, and the possibility of making the mould repeatedly is small. Therefore, the manufacturing cost of the mould is high.
(3) the production cycle is short of the current product competition is fierce, therefore, each manufacturer are in a race against time, for the product to market as soon as possible and do our best, which requires the injection mold from design, manufacturing to the production of all try to shorten the time.
High technical content of injection molding products shape is complex, is also high to the requirement of size, accuracy, and is the main component, the injection mold design and manufacturing to bring very great difficulty, in order to be on time and qualified to mould manufacturing, must be a good soldier who will, must focus on advanced technology of mechanical manufacturing