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Centrifugal casting or rotocasting is a casting technique that is typically used to cast thin-walled cylinders. It is chiefly used to manufacture rotationally symmetric stock materials in standard sizes for further machining, rather than shaped parts tailored to a particular end-use.
Technical Parameters
Product Name : Bimetallic Barrel
Material: JYN3 + JYK Series Alloy
Suitable Machine: Injection / Extrusion / Blowing ...
Available Size: Φ < 500mm, L < 8,000mm
Process Method: Centrifugal Casting
Surface Hardness: 52-62 HRC
Surface Roughness: < Ra 0.8
Screw Straightness: < 0.02mm/m
Advantages
By casting and sintering high quality alloy powder on barrel inside surface with thickness1.5-2.0mm, screws can get higher performance in both wearing & corrosion resistant performance.
Application
General plastics & engineering plastics with below 70% glass fibre filling.
JYK Series Alloy
At this stage, we have JYK-1, JYK-2 and JYK-3 alloy types and treatments for wear fighting
TYPE |
COMPONENTS |
HARDNESS (HRC) |
Abrasive RESISTANCE |
Corrosion resistance |
applications |
JYK-1, C |
Fe, Cr, Ni |
56 – 60 |
x |
x |
Recycling & engineering plastics, reinforced additives less than 20%. |
JYK-2, B |
Ni, W, Cr |
58 – 62 |
xx |
xx |
Moderate corrosive, reinforced additives less than 35% |
JYK-3, D |
Ni, W, Cr |
60 – 64 |
xxx |
xx |
High abrasive and moderate corrosive plastics |
Suitability: (x good) to (xxx excellent).
TYPE |
INGREDIENTS (WEIGHT %) |
||||||||
Cr |
C |
Fe |
B |
Si |
W * |
Mn |
Ni |
Others |
|
JYK-1, C |
8 |
1.2 |
Bal |
4.3 |
4 |
/ |
0.65 |
10.8 |
< 1.0 |
JYK-2, B |
8 |
1.4 |
5 |
4 |
3.3 |
16.5 |
0.5 |
Bal |
< 1.0 |
JYK-3, D |
8 |
1.4 |
5 |
4 |
3.3 |
40 |
0.5 |
Bal |
< 1.0 |
*Highest composition of tungsten carbide can go up to 45%, which enables the barrels have 5 times wear-resistance capability than normal bimetallic barrels and up to 60% glass fibre filling in general & engineering plastics materials.
Bimetallic Barrels,Bimetallic Barrel Casting line,Extruder Bimetallic Parallel Twin Screw
Ningbo Jinyi Precision Machinery Co., Ltd. , https://www.jinyi-machinery.com