коническая близнец 38CrMoAlA винт баррель стр листа

conical twin screw and barrel for pp sheet extruder key words: conical twin screw and barrel, conical twin screw for pp sheet, conical twin screw for sheet, plastic extrusion machinery screw, screw barrel, screw cylinder, plastic extruder screw barrel, screw barrel for plastic extrusion machinery,conical twin screw and barrel, twin screw barrel, plastic extruder screw and barrel, plastic extrusion screw barrel, conical screw, conical screw and barrel Ruian Yumin machine screw co.,ltd is a factory specialized in making screw barrel, filter, mould and gearbox. These products are main parts of plastic machines and package machines. Founded in 1987, Yumin machine screw factory has worked in this field for 22 years and has become the main supplier of some famous plastic machine and package machine factories in Wenzhou area and other parts of China. With the advanced technology and efficient management, we have the confidence and ability to give the best product with excellent quality for our customers. size: 35/75, 45/90, 45/100, 50/105, 55/110, 60/125, 80/143, 80/156, 92/188, 95/188 Material: 38CrMoAlA 40CrMo 42CrMo high quality alloy steelTechnology: nitriding treatment, alloy coating spraying, heating treatment, screw fully hardeningDiameter: Φ45-Φ200(according to the demands of customers) L/D ratio of screw: 16-35 Conical dual-hole barrel screw specificaiton: Φ25Φ45-Φ92Φ188(according to the demands of customers) The screw compressor can be designed according to different products and formulas Technology index: Depth of nitrition layer: 0.5-0.8mm Nitriding treatment, surface hardness: HV≥900-1000 Fragility of nitrition: less than grade 1 Surface roughness: Ra 0.4um Streightness of screw: 0.015mm Surface of hardness of nitrated Cr coating layer: ≥950HV Hardness of Cr coating layer: HRC55-62 Thickness of alloy plating: 0.03-0.08mm Depth of alloy layer:>2mm Used for granulation,PP, PE, PA, PC, ABS,AS etc We can manufacture various kinds of screw barrels according to the customer’s requirement