screw and barrel for plastic extruder machine
Screw and Barrel Parallel, Conical, Twin We are the manufacture professional in produce screw and barrel located in Zhoushan, Chinaall the screw and barrels are made according to the standard of JB/T8538-1997 and ISO9002 1.Material: 38CrMoALA 38CrMoALA(JIS SACM645)
42CMo(JIS SCM440)
SKD61
2.Specification and Techincal Data:
Screw Dia :Ø20-Ø300 L/D Ratio: 15-55 Clamping Force:100KN~35000KN
Injection Volum:30~30000g
Quenched and tempered hardness HB240°~280°
Nitriding Hardness:HV850°~1000°
Nitriding Depth:0.45~0.7mm
Nitriding Brittleness:≤2 grade Surface Roughness:Ra0.4
Linearity of the screw :0.015mm
Chrome Degree after Nitriding :HV≥900HV
Chroming Depth:0.05~0.10mm
Alloy Depth:0.8~2.0mm
The Hardness of the Dual Alloy :HRC56°~65° Technical standard :1.Material : 38CrMoALA2.Hardness of modulator . HB260-2903.Hardness of nitrification : 800-1050HV4.Depth of nitrification layer : 0.4-0.7mm Double-alloy technical standard:Double-alloy level :1.Level A - containing tungsten of 40%2.Level B - containing tungsten of 25%3.Level C - containing tungsten of 9.5%4.Hardness of alloy : HRC56-65o Applied scope of plastic :applied for PVC and WPC material, has a high output and stable performance .1.Components of alloy powder :Ni + Co + Cr + W + Si + Fe + B + C2.Depth of alloy layer : 1.2mm-2.0mm3.Hardness of alloy :HRC>65o Two stage type of barrel (material of powder outlet is Cr12MoMV, vacuum quenching) and screw (powder output is treated by alloy), the using lifespan is long as twice as common ones. The twin screws and barrel can be equipped in differents
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