Development Trend of model and Mold Industry

at present, the development of the whole industrial production is characterized by many product varieties, fast update and fierce market competition. In order to meet the urgent needs of users for short delivery time, high precision and low cost of mold manufacturing, the mold will have the following development trends:

(1)The mold is becoming larger and larger.

This aspect is due to the increasing size of parts manufactured with molds, and on the other hand, it is also a multi-cavity developed due to high productivity requirements (Now some have reached hundreds of cavities in a mold)Caused.

(2)The precision of the mold will be higher and higher.

10 years ago, the precision of precision molds was generally 5UM, and now it has reached 2UM- 3UM, soon the mold of 1UM precision will be on the market. With the improvement of the miniature and precision requirements of parts, the machining accuracy of some molds is required to be within 1 um, which requires the development of ultra-fine processing technology.

(3)The multi-function composite mold will be further developed.

The new multi-function composite mold was developed on the basis of multi-station progressive die. In addition to stamping forming parts, a multi-function mold, it is also responsible for assembly tasks such as stacking, tapping, riveting and locking. This multi-functional mold is no longer produced by a single part, but a batch of components, such as components of contacts and supports, core components of various small machines, electrical appliances and meters, etc.

(4) With the popularization and application of hot runner technology, the proportion of hot runner molds in plastic molds will gradually increase.

since molds using hot runner technology can improve the productivity and quality of the parts and greatly save the raw materials of the parts, the application of hot runner technology has developed rapidly abroad, it is very common. More than half of the plastic molds produced by many plastic mold factories have adopted hot runner technology, and some factory utilization rates have even reached more than 80%, and the effect is very obvious.

(5) With the continuous improvement and development of plastic forming process, gas-assisted molds and molds adapted to high-pressure injection molding will develop accordingly.

The accuracy of plastic parts is divided into dimensional accuracy, geometric shape accuracy and appearance accuracy (That is, light translation, tone, etc). In order to ensure the accuracy requirements, the mold production enterprise will continue to study and develop the high pressure injection molding process and the injection compression molding process. In injection molding, the biggest factor affecting the precision of the molding parts is the molding shrinkage. High pressure injection molding can reduce the resin shrinkage and increase the stability of the size of the plastic parts. Gas-assisted injection molding technology has been relatively mature. It can improve the internal and external quality of plastic parts, and has the advantages of low injection pressure, small deformation of products, and easy to form products with large wall thickness differences, moreover, it can save raw materials and improve the productivity of the parts, thus greatly reducing the cost.

(6)The application of mold standard parts will be more and more widely.

mold normalization and application of mold standard parts can greatly affect the mold manufacturing cycle. The use of mold standard parts can not only shorten the mold manufacturing cycle, but also improve the quality of the mold and reduce the cost of mold manufacturing. Therefore, the application of mold standard parts will become more and more extensive.

(7)The prospect of rapid economic mold is very broad. Now is the era of multi-variety and small batch production. In the 21st century, this mode of production will account for more than 75% of industrial production. On the one hand, the product use cycle is short, on the other hand, the pattern changes frequently, the shorter the production cycle of the mold is required, and the development of rapid economic molds has attracted more and more attention. For example, to develop a variety of superplastic materials to make molds, epoxy (E)Polyester (P)Or filled with metal (M)Glass (G) The main features of these molds are that the manufacturing process is simple, the accuracy is easy to control, the shrinkage rate is small, the price is cheap, and the service life is high.

(8) With the development of products such as vehicles and motors to lightweight, the proportion of die casting molds will continue to increase, while the life and complexity of die casting molds will be put forward higher and higher requirements.

(9) With the further development of plastic replacement steel and plastic replacement wood, the proportion of plastic molds has been continuously improved. At the same time, due to the complexity and accuracy of mechanical parts, the requirements for plastic molds will also be higher and higher.

(10) The technical content of the mold will continue to improve, the proportion of medium and high-grade molds will continue to increase, which is also the market trend brought about by the adjustment of product structure.

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