pc/6465大型灯罩 系列pp 230(粉)、pa66 r1000ei2、pp sfi-841 、pc 301v-10、pa6 b3zg3、eva 3325a、pa6 pl004、tpee kp3372 、pp h35z-00、
ppo gtx630、pps t2010a ppo wcd931 、tpe tf4htt、pps a504x90、pa6 b35g3、pc cfh2020、pc/abs 5200hf、tpe tp5ccn、tpe om 6240、
abs ag15e1pp 3717 、eva e153a、ppo ext130
lcp the compression pressure / holding time is the best appearance&size control for the plastic parts,&the pressure holding time plays an important role. in theory, the holding time is the time needed to solidify the gate. compared with other engineering plastics, pa46 usually requires only a very short holding time due to its rapid solidification characteristics. it can reduce the sag&hole caused by the volume contraction through the long enough pressure protection stage. however, the pressure protection should not be too high to oid the stress. one way to determine the correct pressure level is to increase the pressure pressure until the depression is not seen. after the complete cooling, it is cut at the thickest part of the plastic part to check if there is a hole. if necessary, the pressure protection pressure can be increased. one way to determine the holding time is to measure the weight of the plastic part,&then increase the holding time until the constant weight is obtained. a more complex approach is to install sensors in the city to determine the exact setting time of the gate. compared with pa66, pa46 needs only about half of the holding time. this combined with its higher mold temperature can explain why pa46 has a shorter period of time than other engineering plastics.
pc/6465大型灯罩 系列pc hl-7001、pbt ce15315、pp 7523c 、pc/abs ac2300、pa66 rs6600、tpe vtv5lvn、pom tx-90、tpe 073t、pom a25-03、
pc 8025、pom mt12u01pmma sr8500 、eva e220f、tpe 1025bn/8901、tpu a85h4508、pbt 1800h、pa6 73g15、tpu a85d5001、pp sh4202、
pp 30ll666pa6 yh-800 、pc/abs ck40、pp bhc5012c
pbt干燥处理：这种材料在高温下很容易水解，因此加工前的干燥处理是很重要的。建议在空气中的干燥条件为120℃，6~8小时，或者150℃，2~4小时。湿度必须小于0.03%。如果用吸湿干燥器干燥，建议条件为150℃，2.5小时。[1熔化温度：225~275℃，建议温度：250℃。模具温度：对于未增强型的材料为40~60℃。要地设计模具的冷却腔道以减小塑件的弯曲。热量的散失一定要快而均匀。建议模具冷却腔道的直径为12mm。注射压力：中等到1500bar。
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