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一、制品表面如要求严格，注塑前必须干燥。一般为料斗式干燥70~80℃/2h或托盘干燥80~100℃/1h。对于托盘干燥，应注意料层厚度一般不超过50mm为佳。推荐采用托盘干燥。若注塑出的料条表面有起泡，或切开料条，发现里面有空洞，或发现制品表面又散射状银丝，就可确定TPE/TPR原料含水分过多。

1、 If the product surface is strict, it must be dry before injection. Generally hopper drying 70 ~ 80 ℃ / 2H or tray drying 80 ~ 100 ℃ / 1H. For tray drying, it should be noted that the thickness of material layer is generally not more than 50 mm. Tray drying is recommended. If there are blisters on the surface of the injection molding strip, or if the strip is cut open, and it is found that there are cavities in the strip, or if there are scattered silver wires on the surface of the product, it can be determined that the TPE / TPR raw material contains too much water.

二、尽量采用低温注塑。在保证塑化质量的前提下，尽量降低挤出温度，并且利用提高注射压力及螺杆转速来降低熔体粘度，达到提高流动性的目的。当从喷嘴注射出来的料条表面光滑，还捎带亮光，就可确定塑化质量不错。如果从喷嘴注射出来的料条非常亮，就可确定料筒温度还可降低。尽量的采用低温注塑，可减少冷却时间，从而提高客户生产效率。

2、 Try to use low temperature injection molding. On the premise of ensuring the plasticizing quality, the extrusion temperature should be reduced as much as possible, and the melt viscosity should be reduced by increasing the injection pressure and screw speed, so as to improve the fluidity. When the surface of the strip injected from the nozzle is smooth and bright, it can be determined that the plasticizing quality is good. If the strip injected from the nozzle is very bright, it can be determined that the barrel temperature can be reduced. Try to use low temperature injection molding, can reduce the cooling time, so as to improve customer production efficiency.

三、上抛物线温度设置。螺杆中间区温度高，加料段稍低，喷嘴稍低。典型的温度设置为150~170℃（喂料），170~180℃（中部），190~200℃（前部），180℃（喷嘴）。此温度设置只是作为参考数据，具体的温度可根据不同TPE,TPR材料的具体物性适当调整。如发现制品内容鼓起（气体包在里面），脱模时浇口易断裂，可参照诀窍二做调整。

3、 Upper parabola temperature setting. The temperature in the middle zone of screw is the highest, the feeding section is slightly lower, and the nozzle is slightly lower. Typical temperature settings are 150-170 ℃ (feed), 170-180 ℃ (middle), 190-200 ℃ (front), 180 ℃ (nozzle). This temperature setting is only used as reference data. The specific temperature can be adjusted according to the specific physical properties of different TPE and TPR materials. If it is found that the contents of the product bulge (gas package inside) and the gate is easy to break when demoulding, it can be adjusted according to the second trick.

四、保压压力尽可能小。一般保压压力要比注射压力要小，保压时间的确定可通过称量制品，以制品重量不再增加为准，或者以客户接受的收缩痕为准。如果发现脱模时浇口易断裂，用诀窍二无法奏效，那降低保压压力应该可行。

4、 Keep the pressure as low as possible. Generally, the holding pressure is smaller than the injection pressure, and the holding time can be determined by weighing the product, with the weight of the product no longer increasing, or with the shrinkage mark accepted by the customer. If it is found that the gate is easy to break during demoulding, and the second trick can not work, it should be feasible to reduce the packing pressure.

五、如果是几级注射，速度由慢到快。因为这样，模具内部气体容易排出。如果制品内部有气体包住（内部鼓起），或者有凹痕，用诀窍二无效，可采用此方法调整。

5、 If it's a few injections, the speed is from slow to fast. Because of this, the gas inside the mold is easily discharged. If there is gas in the product (internal bulge), or there is a dent, the second trick is invalid, this method can be used to adjust.