Shanghai Daoqin Plastics Co., Ltd.

        AS resin acrylonitrile and styrene copolymer formed polymer/macromolecule combined material. generally styrene 15%-50%. transparent belt/tape color 至琥珀针 color solid 体. density 1.06. has thermoplastic property. easy color. dilute acid, dilute alkali, dilute alcohol and effect/influence. solvent ketone, acid ester, chlorine ethylene and other in. can used as engineering plastics. tool has excellent heat resistant property and resistant solvent agent property. used for made oil resistant machine parts, table/sheet housing/shell, table/sheet 盘, battery box/case, machine 油箱, battery outer housing/shell, packaging container, day use product and other. can formed Monofilament.

        AS resin tool has very strong/high 承受载荷 can force, resistant chemical reaction can force, resistant hot deformation features and stability property. AS resin in add glass fiber additives can increase strong/high degree and resistant hot deformation can force, decrease small thermal expansion coefficient. AS resin Vicat softening temperature is 110℃. lower deformation temperature degree is 100℃. AS resin shrinkage rate is 0.3-0.7%. AS resin is types hard, transparent material. styrene formed make AS resin hard, transparent easy processing; acrylonitrile formed make SAN(AS) tool has chemical stability property and heat stabilized property.

         injection molding process

        AS resin processing temperature degree generally in 200-250℃ is 宜. material easy wet, processing front drying small above, its flow property ratio PS稍差一点, injection pressure high 一. drying if 储存不适当, AS resin has 一 吸 wet features. drying conditions is 80℃, 2-4 small 时.

        熔化 temperature degree 200-270℃. if processing thick products, can use low lower 限 熔化 temperature degree.

         mold temperature degree 40-80℃. for/regarding reinforcement type material, mold temperature degree need ultra- 60℃. cooling system must very good design, is mold temperature degree will effect/influence products appearance, shrinkage rate and bending.

         injection pressure 350-1300bar injection speed degree use high speed injection

         runner and gate has gate can use. gate dimensions must very 恰当, 以避免 generate strip/profile 纹, and 空隙.