Q
What's the best material for PP hollow corrugated sheet machine screw and barrel?
A
The material for PP hollow corrugated sheet machine screw and barrel
Type for screw and barrel |
Bimetal |
Base raw material for screw and barrel |
38CrMoALA |
Alloy powder |
Ni+Co+Cr+W+Si+Fe+B+C |
Surfacre treatment |
plating Cr |
Main specifications for PP hollow corrugated sheet machine screw and barrel
|
Extruder screw and barrel diameter
|
15mm-300mm
|
|
L:/D
|
15-45
|
|
Modulation hardness
|
HB260-290
|
|
Nitriding hardness
|
900-1000HV
|
Nitriding layer deepth | 0.5-0.75mm |
Plating Cr layer deepth | 0.5-1mm |
Plating Cr hardnedd | HV>85 |
Bimetal alloy layer deepth | 1.2mm-2.0mm |
Bimetal alloy layer hardness | HRC50-65 |
Nitrided brittleness | 《 one grade |
Surface roughness | Ra 0.4 U |
Straightness | 0.015mm |
Tongsan provide good quality PP hollow corrugated sheet making machine for you
The specially designed screw and the advanced controlling system ensure excellent plasticization,high output and stable extruding.
The bimetal alloy screw and barrel can service longer than the common type.
We have the co-extrusion type to use the recycled plastic to reduce the cost with high quality products.
