blow molding machine screw and barrel

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blow molding machine screw and barrel
Posting date : Oct 11, 2012
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39-
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blow molding machine screw and barrel Hardness of nitration: 950-1020HV Fragility of nitration: Less than grade 1 Roughness of the surface:Ra 0.4um Linearity of the screw:0.015mm Chromium-plating layer thickness:0.03-0.08mm Hardness of double alloys: HRC55-62 Depth of double alloys:>2 mm The surface hard chromium plating hardness after nitrogenation:>=950HV Guarantee: Common Nitrided: approx 2 years Bimetallic : much longer lifetime Technical standard: 1.Material: 38C rMoALA 2.Hardness of modulator: HB260-290 3.Hardness of nitrification:800-1050HV 4.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 + C 2.Depth of alloy layer: 1.2 mm-2.0 mm 3.Hardness of alloy: HRC>65° 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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