Specifications

It makes the molten mass evener with good softening and is usually used to extrude charging and secondary materials.

Technical Parameter
Base Material	1)38CrMoAlA(JIS SACM645);2)Cr12MOV(JISSKD-11) ; 3)4Cr5MoSiV1(JIS SKD-61) ;4)42CrMo(AISI4140)
Bimetallic Alloy Materials	1)Fe-based alloy2)Ni-based alloy/Deloroalloy 3)Co-based alloy4)NiCo-based alloy 5)Tungsten carbide/Wolframcarbide
Double-alloylevel	Level A - containing Tungsten of40% Level B - containing tungsten of 25% Level C - containing tungsten of15%
Surface Treatment	Heat Treatment High FrequencyTreatment Nitriding treatment(120Hours): Depth of Nitrided Layer: 0.5-0.8mm Hardness of Nitrided Layer: 900-1020Hv(HRC56°-65°) HardChrome Plating treatment: Thickness of Hard Chrome Plating Layer:0.05-0.10mm Hardness ofHard Chrome Plating Layer: ≥950HV Nickel alloyplating.treatment: Bimetallic Barrel/Cylinder: Centrifugal Casting(Inlay Alloy) BimetallicScrew: Plasma Alloy Coating Spraying Depth of Bimetallic Layer: >2mm Hardness of Bimetallic Layer: HRC55°-72° Spraying corrosion wear-resisting dual metallayers
Basic information	Roughness of thesurface:Ra0.4um Linearity of the screw: ≤0.015mm Linear axis limit:≤0.02mm Hardness afterHardening & Tempering: HB240-280 Fragility ofNitration:≤Twoclass
Material Application	1)GeneralPlastics 2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc 3)PA + GF(GlassFiber) 4)Flame-resistant Reinforced Plastics 5)Modified EngineeringPlastics 6)All kinds of Mixed Recycled Material(in Scrap or Granule), PVC +30% CaCo3, etc

 

QunYing Screw is the leading supplier of SCREW and BARREL in china,including designing,manufacturing and sales for these products,we can make any specification of screw barrel for our customer according to buyer's requirments.

 

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