注塑加工廠根據(jù)用戶的需求，將熱融化的材料由高壓射入模腔，經(jīng)冷卻固化后得到某些形狀復(fù)雜的部件，注塑加工是經(jīng)常用到的部件加工方法。下面，注塑加工廠為您介紹一下注塑加工過程中的溫度控制：
According to the needs of users, the injection molding plant injects the hot melt materials into the mold cavity from high pressure, and obtains some complex parts after cooling and curing. Injection molding is a frequently used part processing method. Next, the injection molding factory will introduce the temperature control during injection molding:
1、料筒溫度：注射模塑過程需要控制的溫度有料筒溫度，噴嘴溫度和模具溫度等。前兩種溫度主要影響塑料的塑化和流動，而后一種溫度主要是影響塑料的流動和冷卻。每一種塑料都具有不同的流動溫度，同一種塑料，由于來源或牌號不同，其流動溫度及分解溫度是有差別的，這是由于平均分子量和分子量分布不同所致，塑料在不同類型的注射機(jī)內(nèi)的塑化過程也是不同的，因而選擇料筒溫度也不相同。
1. Barrel temperature: the temperature to be controlled in the injection molding process includes barrel temperature, nozzle temperature and mold temperature. The first two temperatures mainly affect the plasticization and flow of plastics, and the second temperature mainly affects the flow and cooling of plastics. Each plastic has different flow temperature. For the same plastic, due to different sources or brands, its flow temperature and decomposition temperature are different, which is due to different average molecular weight and molecular weight distribution. The plasticization process of plastics in different types of injection machines is also different, so the barrel temperature is also different.
2、噴嘴溫度：噴嘴溫度通常是略低于料筒溫度的，這是為了防止熔料在直通式噴嘴可能發(fā)生的"流涎現(xiàn)象".噴嘴溫度也不能過低，否則將會造成熔料的早凝而將噴嘴堵塞，或者由于早凝料注入模腔而影響制品的性能。
2. Nozzle temperature: the nozzle temperature is usually slightly lower than the barrel temperature, which is to prevent the "salivation" of molten material in the straight through nozzle. The nozzle temperature should not be too low, otherwise the nozzle will be blocked due to the early solidification of molten material, or the performance of the product will be affected due to the injection of early solidification material into the mold cavity.
3、模具溫度：模具溫度對制品的內(nèi)在性能和表觀質(zhì)量影響很大。模具溫度的高低決定于塑料結(jié)晶性的有無、制品的尺寸與結(jié)構(gòu)、性能要求，以及其它工藝條件（熔料溫度、注射速度及注射壓力、模塑周期等）。
3. Mold temperature: mold temperature has a great impact on the internal performance and apparent quality of products. The mold temperature depends on the crystallinity of the plastic, the size and structure of the product, performance requirements, and other process conditions (melt temperature, injection speed, injection pressure, molding cycle, etc.).
通過本文希望解答您的疑問，本次內(nèi)容由濟(jì)南濟(jì)南注塑加工廠的小編整理發(fā)布的，希望可以幫助到您，更多精彩內(nèi)容可以直接關(guān)注http://www.91tuoguan.com或者搜索：山東模具制造廠家就可以找到我們！
Through this article, I hope to answer your questions. This content is compiled and released by the small editor of Jinan injection molding factory. I hope it can help you. More wonderful content can be directly concerned http://www.91tuoguan.com Or search: Shandong mold manufacturers can find us!
