various size of bimetallic screw
| Min. Order: | 1 Set/Sets |
|---|---|
| Trade Term: | FOB |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 500sets/Month |
| Place of Origin: | Zhejiang |
Company Profile
| Location: | Zhoushan, Zhejiang, China (Mainland) |
|---|---|
| Business Type: | Manufacturer, Trading Company |
| Main Products: | Screw Barrel, Extrude Single Screw, Parallel Twin Barrel |
Product Detail
| Model No.: | ISC-45B |
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| Means of Transport: | Ocean |
| 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 |
| Production Capacity: | 500sets/Month |
| Packing: | wooden |
| Delivery Date: | 35days |
Product Description
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