1、料（liào）筒溫度：注（zhù）射（shè）模塑過程需要控製的溫度有料筒溫度，噴嘴溫度和模（mó）具（jù）溫度等。前兩種溫度主要影（yǐng）響塑料的塑化和流動，而後一種溫度主要是（shì）影響塑料的（de）流動和冷（lěng）卻。每一種塑料都具有不同（tóng）的流動溫度（dù），同一種（zhǒng）塑料，由於來源（yuán）或牌號不同，其（qí）流動溫度及分解溫度是有差別的，這是由於平均（jun1）分子量和分（fèn）子量（liàng）分布不同所致（zhì），塑（sù）料在不同類型的（de）注射機內（nèi）的塑化過程也是（shì）不同的，因而選（xuǎn）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（dù）：噴嘴溫度通常是略低（dī）於料筒至高溫度的，這是為了（le）防（fáng）止熔（róng）料在直通式（shì）噴嘴可能發生的"流（liú）涎現象"。噴嘴（zuǐ）溫度也不能過低，否則（zé）將會造成熔料的早凝（níng）而將噴嘴堵塞，或者由於早凝料注入模腔而影響（xiǎng）製品的性能。
2. Nozzle temperature: the nozzle temperature is usually slightly lower than the barrel to high temperature, which is to prevent the "salivation" of molten material in the straight through nozzle. The nozzle temperature should not be too low, otherwise it will cause the early setting of molten material and block the nozzle, or affect the performance of the product due to the injection of early setting material into the mold cavity.
3、模（mó）具溫度：模具溫度對製品的（de）內在性能和表觀質量影響很大。模具溫度的高低決（jué）定於塑料結晶性的有無、製品的尺寸與結構、性能要求，以及其它工藝條件（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.).
