Current location:Home > Product > Engineering materials for screw barrel > Bakelite Screw

bakelite screw barrel

Material with : screw components are optional: full alloy series, double alloy series

treatment process : Screw barrel can respectively adopt a whole hardening, nitriding, spraying alloy, cylinder bore double alloy casting

adhesion strength : 10000psi .

surface finish: screw surface is less than 0.04um.

Surface hardness: HRC59-69

bakelite screw barrel group ( has wear resistance, strong corrosion resistance )

Applicable to products: switch, lamp holder, instrument shell, shell

Detailed

Bakelite (thermosetting plastic) common phenolic plastic "phenolic resin that is commonly used wood powder wood" UF, TUP, EP, MPF, CF, polyurethane and so on. Characterized by hard texture, good heat resistance, dimensional stability. Jinyang screw company for electric materials screw barrel design requirements for components: ⑴ screw and processing heat compared to the regulation of plastic, aspect ratio is slightly smaller, about 14 ~ 18. ; To avoid the material stay in the barrel for a long time in the cylinder curing, barrel temperature outside the oil temperature set way, the screw drive is usually hydraulic motor, compression ratio is slightly smaller, about 0.8 ~ 1.2. ; Can be stepless speed regulation. To prevent the material in the cylinder when curing screw broken, the screw end does not set the reverse ring. The screw head is tapered to cooperate with barrel and nozzle contour to prevent melt backflow. ⑵ nozzle type straight-through, orifice diameter of about 2 ~ 3mm in the packing phase, the mold temperature is high. The nozzle must leave the mold to prevent solidification of the melt.