Conical Twin Screw Barrel

 Conical  twin  screw barrel Specifications      Standard spcifications of conical twin screw barrel(d/D)24/5225/5535/7645/9045/10050/10550/11051/10555/10055/11055/12058/12458/12560/12565/12065/13268/14368/14770/13570/14075/15080/14380/15692/18895/19195/193105/191105/203105/213100/200The above are standard spcifications,for  good plasticizing effect, we have different design of screw barrel to meet  customer’s requirments.Technical ParameterTechnical parameter of conical twin screw and barrelMain base materials1.38CrMoAlA  (Nitrided Steel)  2.SKD-61 (Special Tool Steel)  3.42CrMo (Ultrahigh Strength Steel)  4.DC53 (Cold Work Die Steel)   5.W6Mo5Cr4V2   6.HPTMainalloy  materials1.Ni-based alloy 2.Tungsten carbide 3.NiCo-based alloy 4.Fe-based alloy 5.Co-based alloyProcessing  technics1.Heat treatment 2.Quenching 3.Nitriding treatment 4.Bimetallic alloy welding 5.Bimetallic alloy centrifugal casting 6.Hard-chrome electroplatingTechnical   parameter1.Nitrided layer depth: 0.5-0.8mm 2.Nitrided hardness: HRC56-58 3.Nitrided brittleness: ≤Grade 1 4.Surface roughness: Ra0.4 5.Linearity of screw:0.015mm 6.Hard-chrome plating      hardness:≥HRC57 7.Chrome-plating layer depth: 0.03-   0.09mm 8.Bimetallic layer depth: 3mm 9.Bimetallic layer hardness: HRC58-62Above are main technical information,a suitable screw and barrel will be made according to    your requirementConical twin screw features:Conical twin screw cores water internal  circulation series and screw cores oil cold out and cycle.Scope of application:Ordinary plastic,WPC,PVC,WPC,PE, Super high molecular  sheet,1/2 high Calcium buckle,50-400 high Calcium pipe,50-300 high Calcium  Profile, soft PVC sheet,XPS-PVC etc. PP, PE, ABS, granulation of raw  materials,production pipe,pelletzing and other extrusion machinery. 3 )Screw barrel also can be made: CINCINNATI, BATTENFELD,KRUSSMAFFEI,BAUSANO  and AMUT model spares. According to different material and plastic  product to choose different compress rate and L/D rate.