WR90Z 泰科纳 pom 塑胶原料的主要应用

wr90z 泰科纳 pom 塑胶原料的主要应用

celcon®wr90z cd32403 black

celcon®wr90z cd32403 jet black

celconwr90z | pom | uv resistant

description

celcon®wr90z is a standard nominal 9 melt flow rate based acetal copolymerstabilized to provide maximum ultraviolet radiation resistance inoutdoor applications while retaining a good balance of properties.available in black only.

otherprocessing

injectionmolding

standardreciprocating screw injection molding machines with a highcompression screw (minimum 3:1 and preferably 4:1) and low backpressure (0.35 mpa/50 psi) are favored. using a low compressionscrew (i.e. general purpose 2:1 compression ratio) can result inunmelted particles and poor melt homogeneity. using a high backpressure to make up for a low compression ratio may lead toexcessive shear heating and deterioration of thematerial.

melttemperature: preferred range 182-199℃ (360-390℉).melt temperature should never exceed 230℃ (450℉).

moldsurface temperature: preferred range 82-93℃ (180-200℉)especially with wall thickness less than 1.5 mm (0.060 in.). mayrequire mold temperature as high as 120℃(250℉)to reproduce mold surface or to assure minimal molded in stress.wall thickness greater than 3mm (1/8 in.) may use a cooler(65℃/150℉)mold surface temperature and wall thickness over 6mm (1/4 in.) mayuse a cold mold surface down to 25℃ (80℉).in general, mold surface temperatures lower than82℃ (180℉)may hinder weld line formation and produce a hazy surface or asurface with flow lines, pits and other included defects that canhinder part performance.

本公司主营系列：
热塑性弹性体：cpe;poe;tpe;tpu;tpv; ppo 等。
通用塑料：hdpe;ldpe;lldpe;abs;gpps;eva hips abs pom等。
工程塑料：coc;lcp;pa/abs;pa6;pa612,pa12,pa66,pa9t,pa6t,pes,psu,pc/abs,pps等。
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