Min. Order: | 1 Set/Sets |
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Trade Term: | FOB |
Payment Terms: | L/C, T/T |
Supply Ability: | 300sets/month |
Place of Origin: | Zhejiang |
Location: | Zhoushan, Zhejiang, China (Mainland) |
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Business Type: | Manufacturer, Trading Company |
Main Products: | Screw Barrel, Extrude Single Screw, Parallel Twin Barrel |
Means of Transport: | Ocean |
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Brand Name: | Vanscrew |
Steel Material: | 38CrMoALA,SKD61.,D2 etc. |
Hardness after Hardening&Termpering: | HB240-280 |
Nitriding Treatment: | ≥ 96 hours |
Surface Hardness: | 58-64 HRC |
Production Capacity: | 300sets/month |
Packing: | woodern case |
Delivery Date: | 25days |
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
Technical data
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 |
Standards of single screw and cylinder of extruder machine:
Φ20mm~Φ300mm
ratio of length to diameter L/D=15~55
single screw