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.
|