Conical Twin Screw Barrel for PVC, extrusion screw barrel, double screws barrel, plastic machinery screw barrel
Specification:
35/76, 45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188, 95/191, 105/191, 100/200
The above are standard specifications, we can customize according to customers' requirements.
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
Bimetalic 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
We could manufacture various kinds of screws and barrels according to the customer's requirement.
About ZY:
1. Rich strength----We have our own professional teams in the sales, design, production, inspection and customer service areas. We concentrate to bring customers the most perfect customer experiences.
2. High-quality products----We adopt a series of advanced production and processing equipments such as CNC machines, Stellite PTA welding machines to ensure the quality of our products.
3. Large international market----We do foreign trade more than 5 years, we have a set of mature foreign trade system, our customers are all over the world. We will continue to expand our international market.
4. Location advantage----We are located in China's screw town----Jintang town, Zhoushan city, near to Ningbo Port and Shanghai Port.
5. Serious and responsible attitude----Over the years, we always maintain a serious, professional and responsible attitude, make our best efforts to meet customers' demands.
Welcome to contact us~!
Main Base materials
|
1.38CrMoAlA (Nitriding Steel) |
| 2. SKD-61 (Special Tool Steel) |
| 3. 42CrMo (Ultrahigh Strength Steel) |
| 4. DC53 ( Cold Work Die Steel) |
| 5. W6Mo5Cr4V2 ( High-Speed Tool Steel ) |
| 6. HPT |
| |
Main Alloy Materials |
1. Ni-based alloy/Deloro alloy |
| 2. Tungsten carbide/Wolfram carbide |
| 3. NiCo-based alloy |
| 4. Fe-based alloy |
| 5. Co-based alloy |
| |
Processing Technics |
1. Heat treatment |
| 2. Quenching |
| 3. Nitriding treatment |
| 4. Bimetallic alloy welding |
| 5. Bimetallic alloy centrifugal casting |
| 6. Hard-chrome electroplating |
| |
Technical parameters |
Nitriding layer depth |
0.5-0.8mm |
| Nitrided hardness |
HRC56-58 |
| Nitrided brittleness |
Less than grade 1 |
| Surface roughness |
Ra 0.4 |
| Linearity of screw |
0.015mm |
| Hard-chrome plating hardness |
≥HRC57 |
| Chrome-plating layer depth |
0.03-0.09mm |
| Bimetallic layer depth |
3 mm |
| Bimetallic layer hardness |
HRC58-62 |
| Above are main technical information, a suitable screw and barrel will be made according to your requirement. |
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