abs丨750sw丨锦湖系列pom s27063、tpu ca-2300 、pps xp-2150im 、pp 1304e4、tpv 3445d、epdm 697、pa66 ld260、pa6 c38fkam、pa66 fg172-371、
pbt sg5200、pc dp9-9371pei bf g20bk、pp t03-gd、pc lz2510v、pp qf460e 、pc/abs tn-3713b、tpu us106b、tpu dp9864du、tpu dp9648du、
pc/abs t85mnpc oq4820、pc/pbt hx6600hp、lcp 2140gm
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.
abs丨750sw丨锦湖系列tpu 1164d、pom n2640e4、pp pd8020、pom 100p、pp 3240 、pc en-8515n、pp fl9413g、pa6 st145nat、pp c711-70rna、
pc/abs rmmb40300、pa66 ltp1146spc gpn2040df、pc hf1140r、pc ml-4110zlp、pom kf002a、pom kx97390、tpe htr8136bk、tpe ata4aon、pom r6、
pp rp348pc 2207、pp 5030、pp 1404-cd
for the separation paws, spel heat-resistant bearings, chains, gears&so on, the peek resin instead of metal as their material can make components lightweight&fatigue resistant&can be oil-free.
|
登录后台
