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What is the PM-HIP technologic way？ |
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| PM-HIP, that is in order to process high-alloy in powder metallurgy(PM)
techniques way into high-density composite materials by hot isostatic pressing(HIP),
as below: |
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Till now there are only a few companies
in world could use this advanced PM-HIP
techniques in plastic machine parts process
field, specially to make HIP bushs inside segment barrels ID of Twin screw
extruders. |
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Selection of Alpha's PM-HIP aloys |
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Alloy |
Base |
Hardness |
Wear resistance |
Corrosion resistance |
Thermal expansion |
Alloy Elements
(Weight- %) |
Alpha 101A |
Fe |
58~64 |
★★★★ |
★ |
12.1 |
Cr:20 |
V:8 |
C:2.5 |
| Alpha 201A |
Co |
52~54 |
★★ |
★★★★ |
11.9 |
Cr:28 |
W:15 |
C:2.5 |
Alpha 301A |
Co |
58~60 |
★★★ |
★★★★ |
10.5 |
Cr:35 |
W:20 |
Mo:2.5 |
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Segment screw,kneading disk that is nitrided, or High-speed steel quenched |
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Bush form inside Segment barrel ID |
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| HPL Gearbox |
| HPL Gearbox for Co-rotating twin screw extruder could bear high torque and high
screw speed, it is the most advanced drive way all
over the world for twin extruder. The radial force on
output axes is zero so that its carrying capacity and
service life could be raised up maximum. The bearings
inside Gearbox is adopted SKF from Sweden and
INA from Germany, our Gearbox could be used in
high dependability, long service life, high screw
speed and high torque way. |
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