Product Description 38CrMoALA professional Single Screw barrel for plastic extrusion machine Bimetallic Screw and Barrel FeatureThe bimetallic barrel is with 2-3mm alloy layer of anti-abrasion and corrosion and high temperature cast on the inner wall, it will be prolong use life for product than nitriding, bimetallic have more abvious advantages when processing special plastic for project plastic,fluoride plastic,PPO etc. Base Material 1)38CrMoAlA(JIS SACM645) 2)Cr12MOV(JIS SKD-11) 3)4Cr5MoSiV1(JIS SKD-61) 4)42CrMo(AISI 4140) 5)9Cr18MoV Bimetallic Alloy Materials 1)Fe-based alloy 2)Ni-based alloy/Deloro alloy 3)Co-based alloy 4)NiCo-based alloy 5)Tungsten carbide/Wolfram carbide Bimetallic Alloy level Level A - containing Tungsten of 40% Level B - containing tungsten of 25% Level C - containing tungsten of 9.5% Designing Screw structure and compression ratio can be designed according to different products & different clamping force requirement. Technology parameter Depth of Nitrided Layer: 0.5-0.8 mm Hardness of Nitrided Layer: 950-1020HvThickness of Hard Chrome Plating Layer: 0.03-0.08mm Hardness of Hard Chrome Plating Layer: ≥950HV Depth of Bimetallic Layer: 2-3mm Hardness of Bimetallic Layer: HRC58°-62° Hardness After Hardening & Tempering:HB260-290 Nitrided Brittleness:Less Than Grade 1 Surface Roughness:Ra 0.4um Screw Straightness:0.015mm Advantage 1.Long lifetime,low energy consumption 2.Wonderful plasticizing 3. High wear resistance, anti- corrosion Working shopFor each product we will inspect and confirmed with buyer before shipment,Jinsheng assured all the goods can be competitive to our customer. Packing1) strong and solid export wooden case with foam inside2) plastic film case package3) suitable to transportation4) as buyer request Application material 1)General Plastics 2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc 3)PA + GF(Glass Fiber) 4)Flame-resistant Reinforced Plastics 5)Modified Engineering Plastics 6)All kinds of Mixed Recycled Material(in Scrap or Granule),etc Jinsheng Services and Advantage:1) Jinsheng have more than 1 year quarantee2) Jinsheng have over 10 years history3) Jinsheng have a strong work-hard team4) Jinsheng is the first factory to make the bimetallic screw and barrel5) Jinsheng will handle all difficult for products 6) Jinsheng will meet customer request7) Jinsheng will be keeping improving We are looking forward to your valuable comments and suggestions!!!
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