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Blocks Screw

process specification of screw and barrel:

    Ф60/2, Ф65/2, Ф70/2, Ф72/2, Ф75/2, Ф80/2, Ф85/2, Ф90/2, Ф93/2, Ф100/2, Ф105/2, Ф110/2,Ф115/2, Ф120/2, Ф125/2, Ф130/2, Ф140/2, Ф150/2, Ф160/2, Ф170/2, Ф180/2, Ф190/2, Ф200/2,Ф250/2

scope of application:

Usually used for lens.transparent shell.cosmetic packaging containers,transparent acrylic.Nylon,PVC,PC,PPA,PPO,PPS,PA6T,LCP,ABS fire prevention,bakelite,P+glass fiber,nylon +glass fiber,magnetic powder,ceramic powder,aluminum and magnesium powder,iron powder,electric injection machines,wood and plastic PVC,PE wood and plastic,ultra-high molecular plate,baking-free brick layer board,above 1to2 high calcium gusset plate,more than50-400%high calcium pipe material,50-300 high calcium profiles,soft PVC sheet,PVC foaming board common plastic,PP,PE,ABS,PVC,raw material pelleting,pipe,profile,sheet,engineering plastic modified granulation

screw elements--HRF10 Extremely superfine diamond tungsten steel;
screw elements--VRA201 Imported superfine diamond tungsten steel;
screw elements--ASP60C(Super high wear resistant);
screw elements--MR11(MR12)Extremely superfine diamond tungsten steel;
screw elements--SKH55A;
screw elements--PR40:



The normal material of Screw and Barrel:                            

Hardness after hardening and tempering:HB260°~320°
Nitrided Hardness:HV950°~1000°
Nitrided Depth:0.50~0.7mm
Nitrided Brittleness:above 2 stage
Surface Roughness:Ra0.4
Screw straightness:0.015mm
Hardess of surface chromium-plating after Nitriding:HV≥950HV
Chromium-plating Depth:0.05~0.10mm
ALLoy Depth:0.8~2.0mm
Alloy hardness:HRC56°~65°