pp丨ep332l丨巴塞尔(参数)pc g2515v、pp 25ll-101、pp hd810mo、pom kl004xxc、pa46 tw271f6、pbt 1201g-15、pc ds0036ip、pps 1140l6-sf3001、pa66 kn333nw、
poe df110、surlyn 8920ppo v0150b、pbt gf40-09、pc gp-1006fm、pom vc127-ld、epdm 4070、pc g-3415、pc gpn2030df、pa6 6gf25、
pa6 kn177npa6 pk003ei2、eva 260、tpu 580
(1) ppsfe40
pp丨ep332l丨巴塞尔(参数)pc kg-15mra、tpu a85d5001、tpe pm581、pa6 pb305g33、tpe ta5aaa、ppo v0150b、pa66 80g14、tpu gp92at、pps gs-40-21/22a5、
coc 5013 、pp l34n-00petg 30、pom kl-4030、pp h150n 、pc 124r、eva ml50、lcp a422、pp 5a28、pa6 statkon pf nat、
abs hag7220pom m90s、pa66 pa303g4、pbt tv6220
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.
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