Rubber Machine Nitrided 38crmoala Screw Barrel

• Customization: Available
• Certification: ISO
• Color: Fixed
• Model NO.: rubber screw barrel
• Standard: International
• Type: Connection
• Material: Alloy
• Screw Barrel: 38crmoala Nitrided Screw and Barrel for Rubber Mac
• Transport Package: Slushing Oil Coated& Film Wrapped in Wooden Case
• Specification: ISO9001: 2008 approved
• Trademark: Zhongyang
• Origin: Zhejiang of China
• HS Code: 84779000
• Production Capacity: 1500sets/Month

Product Description

Screw barrel, rubber screw barrel, extrusion screw barrel, 38CrMoAlA Nitrided Screw and Barrel for Rubber Machinery

Specification:
Diameter of pin screw and barrel: Φ 75mm-Φ 200mm
Diameter of cold feed or hot feed screw and barrel: Φ 30mm-Φ 300 mm
L/D ratio: 12-18

Technical Information

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

Warranty and service: 1 year

Our advantages:
1). Excellent raw materials
2). Good customer service
3). Rapid delivery
4). Reasonable price
5). Production quickly

Experienced manufacture, we will be the best choice.


 

Technical Parameter For Extruder Machine
Base Material	1)38CrMoAlA(JIS SACM645);2)Cr12MOV(JIS SKD-11) ; 3)4Cr5MoSiV1(JIS SKD-61) ;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% Level B - containing tungsten of 25% Level C - containing tungsten of 9.5%
Surface  Treatment	Heat Treatment High Frequency Treatment Nitriding treatment(120 Hours): Depth of Nitrided Layer: 0.5-0.8 mm Hardness of Nitrided Layer: 900-1020Hv (HRC56°-65°) Hard Chrome Plating treatment: Thickness of Hard Chrome Plating Layer: 0.05-0.10mm Hardness of Hard Chrome Plating Layer:  ≥ 950HV Nickel alloy plating.treatment: Bimetallic Barrel/Cylinder: Centrifugal Casting (Inlay Alloy) Bimetallic Screw: Plasma Alloy Coating Spraying Depth of Bimetallic Layer: >2mm Hardness of Bimetallic Layer: HRC55°-72° Spraying corrosion wear-resisting dual metal layers
Basic information	Roughness of the surface:Ra0.4um Linearity of the screw:  ≤ 0.015mm Linear axis limit:  ≤ 0.02mm Hardness after Hardening & Tempering: HB240-280 Fragility of Nitration: ≤ 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% CaCo3, etc