1.料筒溫度:注射加工模塑過程需要控製的溫(wēn)度有料筒溫度,噴嘴溫度和模具溫(wēn)度等。前兩程溫度主要影響塑料(liào)的塑化和流動,而後一種溫度主要(yào)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,由於來源或牌號不同,其流動溫度及分解溫度是有差別的(de),這是由於平均分子量和分子量分布不同所致,塑(sù)料在不同類(lèi)型的注射機內的塑(sù)化過程(chéng)也是不同的,因(yīn)而選擇料筒溫度也(yě)不相(xiàng)同。
1. Barrel temperature: the temperature to be controlled in the injection molding process includes barrel temperature, nozzle temperature, mold temperature, etc. The first two temperatures mainly affect the plasticization and flow of plastics, and the latter 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.
濟南模(mó)具加(jiā)工
Jinan mould processing

2、噴嘴溫度:噴嘴溫度通常是(shì)略低於料筒高溫度的,這是為(wéi)了防止熔(róng)料在直通式噴嘴可(kě)能(néng)發生的“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(níng)而將噴嘴堵死,或者由於早凝料注入模腔而(ér)影響製品的性能(néng)
2. Nozzle temperature: the nozzle temperature is usually slightly lower than the high temperature of the barrel, which is to prevent the "salivation" of molten material in the straight through nozzle. The temperature of the nozzle shall not be too low, otherwise the nozzle will be blocked due to the early setting of the melt, or the performance of the product will be affected due to the injection of the early setting material into the mold cavity
3、模(mó)具溫度(dù):模具溫度對(duì)製(zhì)品的(de)內在性能和表觀質量影響很大。模具(jù)溫度的高低決定於(yú)塑料結晶性的有無(wú)、製品的尺(chǐ)寸與結構、性能要求,以及其(qí)它工藝條件(熔料溫度、注射速度及注(zhù)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.).