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Three-layer PVC Solid Wall Pipe Co-extrusion Production line
Description:
It developed by Jwell company uses the three extruders for 3 or 4 layers co-extrusion. This line adopts
the Jwell latest designed PP+CaCo3 vented screw and the PLC computer controlling device and automatically thickness detection device so that the machine can maximize the percentage of the CaCo3 in the sheet production to reduce the cost of the sheet and the sheet produced can gain the good physical properties and further processing abilities. It is the most advanced sheet machine in China.
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Bimetallic screw and barrel
For our bimetallic screw,we have adopted advanced technique (HP/HVOF) of surface harding process by the whole screw surface,WPT1 alloy with corrosion resistant suits for nylon,PVC ,PC,PMMA and so on.WPT2 alloy with corrosion resistant and high temperature resitant suits for magnetic powder,magnesium and alumium powder,bakelite injection and so on.WPT3 is compatible with WPT1 and WPT2.
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Screw and Barrel for Extruder
1) 38CrMoAlA(JIS SACM645)
2) 42CrMo(JIS SCM440)Heat-treatment
Nitriding treatment
Electroplated hard-chrome finish
High frequency quenching
Spray bimetallic coating
Vacuum quenching -
Parallel twin screw and barrel
High quality alloy-steel
1) 38CrMoAlA(JIS SACM645)
2) 42CrMo(JIS SCM440)
3) 9Cr18Mov
4) CW6Mo5Cr4V2Heat-treatment
Nitriding treatment
Electroplated hard-chrome finish
Spray bimetallic coating -
Conical Twin Screw and Barrel
1) 38CrMoAlA(JIS SACM645)
2) 9Cr18Mo
Heat-treatment
Nitriding treatment
Spray bimetallic coating -
Barrels and Screws for injection machine
1) 38CrMoAlA(JIS SACM645)
2) 42CrMo(JIS SCM440)Nitriding treatment
Electroplated hard-chrome finish
High frequency quenching
Spray bimetallic coating
Vacuum quenching
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