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Bimetallic injection barrel and screw manufacturer China for PVC

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http://www.bjmachinery1.com

The bimetallic barrel has a 2-5mm thick alloy coating moulded on the inner wall of the barrel, which gives excellent corrosion and abrasion resistance to the barrel and increases its endurance against high working temperature. Therefore, its useful service life is greatly improved in contrast to the ordinary nitrided ones. Bimetal has more obvious advantages when processing PVC formula with a high portion of calcium powder, engineering plastics, fluorine plastics, polysulfone and PPO specialized plastics, etc. 

Technical Index

●Technical specification

Hardness after hardening& tempering: HB260-290

Nitrided hardness: HV850-1050

Nitrided case depth:0.5-0.8mm

Nitrided brittleness: less than grade 2

Surface straightness: 0.015mm

Surface roughness: Ra 0.4

Surface chromiun-plating’s hardness after nitriding: ≥900HB

Chromiun-plating depth:0.03-0.10mm

Alloy hardness: HRC55-65

Alloy depth: 1.5-3mm 

●Material &processes

Quality 38CrMoAIA SACM645 (1.8509)

GH113 HC-276, 42CrMo

CW6Mo5Cr4V2, 9Cr18MoV

SKD61, DC53, SUS440

Quality powder alloy steel HPQ1#、HPQ2#、HPQ3#

Advanced nitriding process

Vacuum ionic hardening

Corrosion&abrasion resistance bimetal spraying process

Types and characteristics

(HRC) Hardness

Alloy powder Place of origin

Abrasion resistance

Corrosion resistance

(。C)

Temperature range

Alloy composition

Resin type

C grade nickle-based alloy

55-62

China

Good

Excellent

≤400

Fe+Ni+Cr+Co+B

Universal general resins and engineering resins. Containing 30% glass fiber PE,PP,ABS,AS, PS, TPE,PA,PC,PEI,PEEK,PPS,PAR,LCP

Grade B tungsten carbide nickle-based alloy

55-62

U.S.A.

Excellent

Excellent

≤450

Ni+Cr+W+B

niversal general resins and engineering resins. Containing 40% glass fiber PE,PP,ABS,AS, PS, TPE,PA,PC,PEI,PEEK,PPS,PAR,LCP

A grade tungsten carbide cobalt-based alloy

55-65

German

Particularly good

Excellent

≤600

Co+Cr+W+Ni+B

Special engineering resins. Iron powder, ceramic powder,powder,copper powder, glass fiber and other engineering plastics and halogen-free+sticky little plastic

  • Product Details
  • Brand :
  • Place of Origin : Not Given
  • FOB Price : On Request
  • Minimum Order Quantity : Not Given
  • Supply Ability :
  • Packaging & Delivery
  • Packaging Detail : Not Given
  • Delivery Detail : Not Given
  • Alloy depth : 1.5-3MM
  • Alloy hardness : HRC55-65
  • applications : For PVC products
  • Brand : BAIJIU
  • Material : 38CrMoAIA, SKD61,DC53
  • Nitrided case depth : 0.5-0.8mm
  • Nitrided hardness : HV850-1050
  • screw straightness : 0.015mm
  • Surface roughness : Ra 0.4