various size of bimetallic screw

Price: 800.0~5000.0 USD
Trade Term: FOB
Payment Terms: T/T,L/C
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Basic Info.
  • Brand Name: Vanscrew 
  • Material: 38CrMoALA 
  • Heat-treatment: Nitriding treatment 
  • Nitrided depth: 0.45-0.7mm 
  • Nitriding hardness: Hv850-1000 
  • Alloy Depth: 0.8-2.0mm 
  • Model No.: ISC-45B 
  • Place of Origin: Zhejiang  
  • Min.Order: 1 Set/Sets
  • Means of Transport: Ocean
Supply Capacity
  • Production Capacity: 500sets/Month
  • Packing:wooden
  • Delivery Date: 35days

Technical Index (30g-25000g):

  • Depth of Nitrated Layer: 0.5-0.8mm

  • Hardness of nitration: 900-1020Hv

  • Fragility of nitration: Less than grade 1

  • Surface Hardness of Nitrated Cr coating layer: ≥950Hv


    The bimetallic barrel cylinder is a ind of cylinder with 2-3mmalloy of antibrasion.Erosion proof and high temperature cast on the inner wall on it.Contrast to common nitriding barrel. Its useful sfrvice life is grfatly improved.Bimetal has more obvious advantages when processing special plastic such as project plastic.Fluoride plastic,PPO etc.

     For our bimetallic screw,we have adopted a new technology of surface hardening process by the whole screw surface instead of only hard facing the screw flights by PTA treatment.

Material:

Alloy-Steel of High-quality

38CrMoALA(JIS SACM645)

Heat-treatment

Nitriding treatment

Electroplated hard-chrome finish

High-frequency quenching

Spray coating Bimetallic-alloy

Vacuum quenching

Technicaldata

Hardness After Hardening &Tempering:

HB240 -280

Nitrided Hardness:

Hv850-1000

Nitrided Depth:

0.45-0.7mm

Nitrided Brittleness:

≤Grade 2

Surface Roughness:

Ra0.4

Screw straightness:

0.015mm

Surface Chromate-plating's Hardness After Nitrided:

≥900Hv

Chromate-plating Depth:

0.05-0.10mm

Bimetallic-alloy Hardness:

HRC56 -65

Alloy Depth:

0.8-2.0mm

Bimetallic barrel:

Processing application:

Injection molding machines , extrusion machine    , bakelite machine

Processing range:

Φ18-Φ300

Maximum length:

5000mm

Alloy composition:

WC88Wc/12Co

Grade A:The content of 40%

Grade B:The content of 25%

Grade C:The content of 9.5%

Alloy thickness:

2-4mm

Application of the plastic range:

All kinds of glass fiber,the PPA ,PPS ,PA6T ,LCP,electric wood powder,magnetic powder,iron powder and other special engineering plastics  

Single screw barrel

Φ20mm~Φ300mm       

ratio of length to diameter L/D=15~55

Bimetallic injection screw


Send message to this supplier
Mr. Kevin Wu (Manager)
Tel: 86-580-8050095
Mobile: 13666583666
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Contact Method
Zhoushan Vanscrew Machinery Co.,Ltd.
Yangang North Road,Jintang Town,Dinghai District, Zhoushan, Zhejiang, China (Mainland) / 316032
Fax: 86-580-8050057
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