Over 29 years experience in screw and barrel , more info pls find kaylee(at)tizatech.com Specification: Diameter: Ã?15-Ã?500 L/D ratio:15-55 Base Materials: 1)38CrMoAlA(SACM 645) 2)42CrMo(AISI 4140) 3)Cr12MoV(SKD11) 4)4Cr5MoSiV1(SKD61) 5)9Cr18MoV 6)40Cr Bimetallic Alloy Materials: 1)Fe-based alloy 2)Ni-based alloy 3)Co-based alloy 4)Tungsten carbide Processing Technology: Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding Technical Parameter: Nitrided layer depth:0.50-0.80mm Nitrided hardness: 900-1100HV Nitrided brittleness: Less than 2 level Surface roughness: Ra 0.4 Linearity of screw: 0.015mm Hard-chrome plating hardness: â?¥950HV Chrome-plating layer depth: 0.025~0.10mm Bimetallic layer depth: 2 mm Bimetallic hardness: HRC50-65 Material to be extruded: PP, PE, PVC, ABS, AS, PS etc. We can manufacture all types of screws and barrels according to clientsâ?? requirement
Screw diameter: 35mm-200mm Length: less than 10000mm Barrel diameter: 35mm-200mm Material: 38crmoala; skd61; skd11; 40cr; 42crmo; high quality alloy steel Technology for tin coated screw barrel/: nitriding treatment, alloy coating spraying, heat-treatment, quenching Appliance for tin coated screw barrel/: pa, evoh, eaa, pc etc
Specification: Screw diameter: d15- d 300 L/d ratio: 15-46 Product classification: Aiming at different plastic products the screw can be chosen from: general type, pin type, barrier type, separation type, and gas-exhausting type, etc. Base materials: (1)38crmoala(jis sacm645) (2)42crmo(aisi 4140) (3)4cr5mosi v1 (jis skd-61) (4)9cr18mov (5)hpt 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 Technics: Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding Bimetallic alloy centrifugal casting Technical parameter: Nitrided layer depth: 0.5-0.8mm Nitrided hardness: 900-1000hv Nitrided brittleness: less than grade 1 Surface roughness: ra0.4 Linearity of screw: 0.015mm Hard-chrome plating hardness after nitriding: >950hv Chrome-plating layer depth: 0.025-0.085mm Bimetallic layer depth: 3mm Slushing oil coated& film wrapped in wooden case
Specification: Screw Diameter: D15- D 300 L/D ratio: 15-46 Product classification: Aiming at different plastic products the screw can be chosen from: General type, pin type, barrier type, separation type, and gas-exhausting type, etc. Base Materials: (1)38CrMoAlA(JIS SACM645) (2)42CrMo(AISI 4140) (3)4Cr5MoSi V1 (JIS SKD-61) (4)9Cr18MOV (5)HPT 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 Technics: Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding Bimetallic alloy centrifugal casting Technical parameter: Nitrided layer depth: 0.5-0.8mm Nitrided hardness: 900-1000HV Nitrided brittleness: less than grade 1 Surface roughness: Ra0.4 Linearity of screw: 0.015mm Hard-chrome plating hardness after nitriding: >950HV Chrome-plating layer depth: 0.025-0.085mm Bimetallic layer depth: 3mm Slushing Oil Coated& Film Wrapped in Wooden Case
Hardness after hardending & tempering : hb240~280 Nitrided hardness : hv950~1000 Nitrided case depth : 0.55~0.7mm.
Product:screw and barrel Material:sacm645(38crmoal) Hardness:hrc55-60 Treatment:azotizing Wooden case
Supplier: Screws, barrels, extruder type gear boxes
Supplier: Screw barrels, bimetallic screw barrels, extruder screw barrels and twin conical screw barrels for injection molding machinery and extruder
Technical index Depth of nitrated layer: 0.5-0.8mm Hardness of nitration: 900-1020hv Fragility of nitration: less than grade 1 Surface roughness: ra 0.4um Hardness of cr-coating layer: >=950hv Hardness of bimetallic layer: hrc55-72 Thickness of cr-coated layer: 0.03-0.08mm Depth of bimetallic layer: >2mm. 1set/wooden box.
