微發(fā)泡注塑是當下高速發(fā)展的新型注塑技術，該技術從微觀上解決了塑料材料的內應力收縮，改善了塑料產(chǎn)品的翹曲變形，大幅度提高了功能型塑料制品的性能，同時還節(jié)省了大量塑料原料。

Microfoamed injection molding is a new injection molding technology with rapid development in this year. This technology  solves the internal stress shrinkage of plastic materials from the micro level,  improves the warping deformation of plastic products, greatly improves the performance of functional plastic products,  and saves a lot of plastic raw materials.

微發(fā)泡注塑成型是通過向熔融狀態(tài)樹脂中擴散混入超臨界N2或CO2形成均相，之后在低壓填充過程中，由于壓力變化導致超臨界流體成核發(fā)泡形成微細氣泡孔，最終冷卻形成穩(wěn)定的物理發(fā)泡結構制品的高新技術。

Microfoam injection molding is a high-tech product that diffuses supercritical N2 or CO2 into the molten resin to form a homogeneous phase, and then in the process of filling at low pressure, the change of pressure leads to the nucleation of supercritical fluid bubbles to form micro bubble holes, and finally cools to form stable physical foam structure products.

微發(fā)泡注塑成型原理

Principles of microfoaming injection molding

微發(fā)泡注塑是近年內高速發(fā)展的新型注塑技術，該技術從微觀上解決了塑料材料的內應力收縮，改善了塑料產(chǎn)品的翹曲變形，大幅度提高了功能型塑料制品的性能，同時還節(jié)省了大量塑料原料。

Microfoam injection molding is a new injection molding technology that has developed rapidly in recent years. This technology solves the internal stress shrinkage of plastic materials from the micro level, improves the warping deformation of plastic products, greatly improves the performance of functional plastic products, and saves a lot of plastic raw materials.

微發(fā)泡注塑成型是將氣體(N2或CO2) 加壓至超臨界狀態(tài)后注入料管熔膠中，透過螺桿將兩者混練成單相流體。超臨界流體在注塑過程中因瞬間壓降造成熱力學不平衡，使得流體進入模穴后氣體得以從熔膠當中擴散成核，并長成均勻微細氣泡。含有微細氣泡的熔膠經(jīng)模具冷卻固化得到如蜂巢般的內部構造成品。

Microfoam injection molding is to pressurize the gas (N2 or CO2) to a supercritical state and inject it into the material tube melt, and mix the two into a single-phase fluid through a screw. In the process of injection molding, the thermodynamic imbalance is caused by the instantaneous pressure drop of the supercritical fluid, so that the gas can be diffused and nucleated from the molten glue after the fluid enters the mold hole, and grow into uniform fine bubbles. The molten glue containing fine bubbles is cooled and solidified by the mold to obtain a finished product with an internal structure like honeycomb.

微發(fā)泡注塑成型技術憑借其完美的尺寸精度控制，蜂窩微孔的內部結構，正逐步應用于汽車、電子、生活消費品等塑料制品的生產(chǎn)，是未來最具有市場價值的前沿技術。

Micro-foam injection molding technology with its perfect dimensional precision control, the internal structure of honeycomb micropores, is gradually applied to the production of automobiles, electronics, consumer goods and other plastic products, is the most valuable market frontier technology in the future.