YUYAO RUIFENG HYDRAULIC CO., LTD. / 2022-07-04
=== Base Info ===
=== Description ===
Product Features
Brand
JINYI
Product Name
Bimetallic Screw
Base Material
38CrMoAlA High-quality Alloy Structural Steel
Quenching and Tempering
Hardness
HB260-280
Nitriding Hardness
HV950±50
Nitride Layer Depth & Hardness
0.4-0.6mm , 56-60HRC
Brittleness
≤2
Surface Finish
Ra0.04
Scope of Application
Suitable Recycling & Engineering Plastics &
<
20% reinfored additives & corrosive plastic
Bimetallic
Screw
PTA (Plasma Transferred Arc) automatic alloy spaying is a newly applied technology, especially for precise requirement of screws. Comparing to traditional manual alloy spraying, PTA has better performance with the stability and outlook of screws.
Technical Parameters
Product Name : Bimetallic Screw
Material : JYN1 + JYS Series Alloy
Suitable Machine: Injection/Extrusion/Blowing...
Available Size:Φ14-400mm, Length <8,000mm
Process Method: PTA Spray
Surface Hardness:46-58 HRC
Surface Roughness: < Ra 0.8
Screw Straightness: < 0.02mm/m
Advantages
By spraying high quality alloy powder on screw flight with layer thickness 1.5-2.0mm, screws can get higher performance in both wearing & corrosion resistant performance.
Application
General plastics & engineering plastics with below 15% glass fibre filling.
JYS Series Alloy
At this stage, we have JYS-1, JYS-2 and JYS-3 alloy types and treatments for wear fighting.
TYPE | ALLOY COMPONENTS |
HARDNESS
(HRC) |
ABRASION
RESISTANCE |
CORROSION
RESISTANCE |
APPLICATIONS |
JYS-1, B | Ni. Cr, Si | 52- 56 | x | x | Recycling & engineering plastics. |
JYS-2, A | Ni, Cr, W | 54- 58 | xx | x | Engineering plastics, reinforced additives less than 20%. |
JYS-3, D | Co, Cr, W | 44 - 48 | x | xx | Reinforced additives and corrosive plastics less than 15%. |
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