Kabra Extrusion PVC Parallel Double Screw and Barrel
Specification:
Diameter: Φ 45mm-Φ 200mm
L/D ratio: 16-35
High quality 38CrMoAla material
Nitration surface treating
The compression ratio of screws can be designed according to different products and ingredients
Base Materials:
(1)38CrMoAlA(JIS SACM645)
(2)42CrMo(AISI 4140)
(3)4Cr5MoSi V1 (JIS SKD-61)
(4)9Cr18MOV
(5)HPT
Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide
Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: ≥ 950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm
Warranty and service: 1 year.
Focus on quality and service.
Experienced manufacturer, we will be the best choice.
Workshop Display:
Products Application:
1)General Plastics, PVC
2)Material compounds CACO3, glass fiber, recycle materials, stabilizer
3)ABS,TPR,TPU,PMMA,C-PVC,UPVC,RPVC,PET,EVA,PU etc
4)Scrap and waste plastic and PVC recycling
5)Modified engineering plastics
Terms and Conditions:
Means of transport: Ocean,Air,Express
Production time: About 20-30 days after we receive the advanced payment
Production Process:
Receiving orders - Designing & Drawing confirmation - Blanking Thermal refining - Heat treatment - Rough Turning - Polishing - Drilling for barrel - Semi Finishing Machining - Bimetallic welding - Centrifugal casting for barrel - Polishing - Nitriding treatment(120 hours) or High frequency quenching - Hard-chrome plating - O.D. Grinding - Honing for barrel - Alignment - Polishing - Inspecting - Packing & Shipping
ZY SCREW's advantage:
First-class designing and researching team;
High quality and durable products of screw barrel;
Most professional sales who can serve for you timely;
Best customer service especially after-sale service;
Powerful company's strength support long-term cooperation.
Welcome to contact us, Camille will reply you timely!
Type |
Model |
Hardness
(HRC) |
Wear resistant |
Corrosion resistant |
Thickness |
Application
Glass Fiber |
| PTA weld |
J1 38CrMoAlA
Ni-base alloy |
45-58 |
Excellent |
Special excellent |
1.5~3mm |
Under 10% |
J2 SKD61
Ni-base alloy |
45-58 |
Special excellent |
Excellent |
1.5~3mm |
Under 15% |
| Nitriding |
J3 Nitrided |
HV more than 800 |
Good |
Good |
0.25mm |
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