At present, the development characteristics of the entire industrial mold production are more varieties of products, quick updates and fierce market competition. In order to meet the urgent needs of short delivery, high-precision, low-cost from users, the mold will have the following development trends:
(1) Increasing the size of the mold.
Partly because the ever-increasing size of parts made from injection molds, and partly because the multi-cavity mold that have developed as a result of the high productivity requirements. and, on the other hand, the multiplicity of cavities that have developed as a result of the high productivity requirements (now some molds already reached a few hundred cavities).
(2) The higher and higher accuracy of the mold.
10 years ago, the accuracy of precision mold is generally 5μm, now has reached 2μm-3μm, and1μm precision mold will coming soon. With the miniaturization of components and the improvement of the precision requirements, the machining precision of some molds needs to be less than 1μm, which requires the development of super finishing process.
(3) Multi-functional composite mold will be further developed.
The new multi-functional composite mold is developed from the multi-position progressive mold.
In addition to stamping parts, a multi-functional mold can be used for assembly tasks such as overloading, tapping, riveting and locking. This kind of multi-functional molds is no longer producing a single part, but also a batch of components, such as a touch head and a support component, all kinds of tiny machines, electrical and instrumentation core components, etc.
(4) With the increasingly application of hot runner technology, the proportion of hot runner mold in plastic mold will gradually increase.
Due to the mold that use of hot runner technology can improve the parts production and quality, and can greatly reduce the raw materials, therefore, the application of hot runner technology developed rapidly in foreign countries. Many Plastic Mold Factory already made more than half of the plastic molds used in hot runner technology, some plants even more than 805 ultilization and the effect is obvious.
(5) With the continuous improvement and development of plastic forming process, gas assisted injection mold and molds adapt to high pressure injection will develop accordingly.
The accuracy of plastic parts is divided into dimensional accuracy, geometric accuracy and appearance accuracy(ie, glossy, color, etc.). In order to ensure the precision requirement, mold manufacturers will continue to study the development of high-pressure injection molding process and injection compression molding prcess. In the injection molding, the most important factor affecting the accuracy of molded parts is shrinkage, and the High Pressure Injection Molding can reduce the shrinkage rate of the resin and increase the stability of the plastic parts. Gas-assisted injection molding technology has been more mature, it can improve the quality of the inner and the appearance of plastic parts. With advantages of low injection pressure, small product deformation, easy to shape and greater differences of the wall thickness, etc., and can save raw materials and improvde productivity as well, so as to greatly reduce the cost.
save raw materials and improve workpiece productivity , Thus significantly reducing costs.
(6) The increasingly widespread of the application of mold standard parts.
Mold standardization and mold standard parts can greatly affect the mold manufacturing cycle. The use of mold standard parts not only can shorten the mold manufacturing cycle, but also improve mold quality and reduce the cost, so the application of mold standard parts will be increasingly widespread.
(7) The development of rapid economic mold has broad prospects.
Now it is the era of small-batch production, which accounts for more than 75% of industrial production in the 21st century. On the one hand is the short product life cycle, on the other hand, the frequently change of product requires to shorten the production cycle, so people pay more and more attention to the development of rapid economic mold. For example, develop a variety of superplastic materials to make molds or with Epoxy(E), Polyester(P) or filled with metal(M), Glass(G) and others to enhance manufacturing simple molds. The main features of these molds are simple process, easy control accuracy, small shrinkage, cheap price and high service life.
(8) With the development of lightweight products such as vehicles and electric motors, the proportion of Die-Casting Molds will continue to increase while the life and complexity of die-casting molds will be subject to increasing demands.
(9) With the further development of plastic substitution of steel and wood substitution of plastic, the plastic mold ratio continues to increase, at the same time, due to the complexity of the mechanical parts and increasingly precisione, the plastic mold requirements will also be higher and higher .
(10)The mold technology will continue to increase, the proportion of middle and high-grade mold will continue to increase, which is also the product structure adjustment brought about by the market trend.
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