Extruder Bimetallic Screw and Barrel PVC Pipe Extrusion Screw Barrel

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Model NO.	extruder bimetallic screw barrel	Nitrided Hardness	HRC56-58
Material	Nitriding Steel	Size	Customize
Transport Package	Slushing Oil Coated& Film Wrapped in Wooden Case	Specification	ISO 9001: 2008
Trademark	ZHONGYANG	Origin	China(Mainland)
HS Code	84779000	Production Capacity	100 Sets/ Month

Product Details

Product Description

Twin screw barrel, conical twin screw barrel, PVC pipe extruder screw barrel, Plastic Extruder Bimetallic Screw and Barrel

Specification&colon;
Screw diameter&colon; 15mm-300mm
Maximal length&colon; 8000mm
Barrel inner diameter&colon; 15-300mm
Maximal length&colon; 4000mm

Different bimetallic alloys are available for different raw materials&period;

Base Materials&colon;
(1)38CrMoAlA(JIS SACM645)
(2)42CrMo(AISI 4140)
(3)9Cr18MOV

Bimetallic alloy materials&colon;
(1)Fe-based alloy
(2)Ni-based alloy/Deloro alloy
(3)Co-based alloy
(4)NiCo-based alloy
(5)Tungsten carbide/Wolfram carbide

Technics&colon;
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting

Technical parameter&colon;
Nitrided layer depth&colon; 0&period;5-0&period;8mm
Nitrided hardness&colon; 900-1000HV
Nitrided brittleness&colon; Less than grade 1
Surface roughness&colon; Ra0&period;4
Linearity of screw&colon; 0&period;015mm
Hard-chrome plating hardness after nitriding&colon; &geq; 950HV
Chrome-plating layer depth&colon; 0&period;025-0&period;085mm
Bimetallic layer depth&colon; 3mm

Warranty and service&colon; 1 year
Experienced manufacturer, focus on quality and service&period;

Technical Parameter For Extruder Machine
Base Material	1)38CrMoAlA(JIS SACM645)&semi;2)Cr12MOV(JIS SKD-11) &semi; 3)4Cr5MoSiV1(JIS SKD-61) &semi;4)42CrMo(AISI 4140)
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
Double-alloy level	Level A - containing Tungsten of 40&percnt; Level B - containing tungsten of 25&percnt; Level C - containing tungsten of 9&period;5&percnt;
Surface Treatment	Heat Treatment High Frequency Treatment Nitriding treatment(120 Hours)&colon; Depth of Nitrided Layer&colon; 0&period;5-0&period;8 mm Hardness of Nitrided Layer&colon; 900-1020Hv (HRC56°-65°) Hard Chrome Plating treatment&colon; Thickness of Hard Chrome Plating Layer&colon; 0&period;05-0&period;10mm Hardness of Hard Chrome Plating Layer&colon; &geq; 950HV Nickel alloy plating&period;treatment&colon; Bimetallic Barrel/Cylinder&colon; Centrifugal Casting (Inlay Alloy) Bimetallic Screw&colon; Plasma Alloy Coating Spraying Depth of Bimetallic Layer&colon; >2mm Hardness of Bimetallic Layer&colon; HRC55°-72° Spraying corrosion wear-resisting dual metal layers
Basic information	Roughness of the surface&colon;Ra0&period;4um Linearity of the screw&colon; ≤ 0&period;015mm Linear axis limit&colon; ≤ 0&period;02mm Hardness after Hardening & Tempering&colon; HB240-280 Fragility of Nitration&colon; ≤ Two class
Material Application	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), PVC + 30&percnt; CaCo3, etc