Chrome Coating Conical Twin Screw Barrel for PVC Extruder Machine
Ss Spunbond Nonwoven Production Line
Non-woven fabric is a kind of non-woven fabric, which directly uses polymer chips, short fibers or filaments to form fibers through airflow or mechanical netting, and then undergo hydroentangling, needle punching, or hot rolling reinforcement, and finally finishing The resulting non-woven fabric. A new type of fiber product with soft, breathable and flat structure. The advantage is that it does not produce fiber debris, is strong, durable, silky soft, and has a cotton feel. Compared with cotton fabrics, non-woven bags are easy to shape, and It is cheap, durable, and disposable. Insulating and conductive. Softness and stiffness. Density and expansion. Isotropic, anisotropic. Filterability, breathable and impermeable. Elasticity and stiffness. Light, loose and warm. Thin as a cicada's wings, thick as felt. Waterproof and breathable. Ironing, stitching, and compression molding. Flame retardant and antistatic. Water-permeable, waterproof, abrasion-resistant, and flocking. Wrinkle resistant, good elasticity, high moisture absorption, water repellency. SS non-woven fabrics are mostly used in sanitary materials, so in the mechanical design, the SS machine tends to make the non-woven fabric softer, and the ss can also be processed to become more rigid and suitable for packaging materials.
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Technical Information for Conical Twin Screw Barrel
Main Base materials
1.38CrMoAlA (SACM645)
Main Alloy Materials
1. Ni-based alloy/Deloro alloy
2. SKD-61 (Special Tool Steel)
2. Tungsten carbide/Wolfram carbide
3. 42CrMo (Ultrahigh StrengthSteel)
3. NiCo-based alloy
4. DC53 (Cold WorkDie Steel)
4. Fe-based alloy
5. W6Mo5Cr4V2 (High-SpeedToolSteel)
5. Co-based alloy
Processing Technics
1. Heat treatment
Technical parameters
Nitriding layer depth:0.5-0.8mm
2. Quenching
Nitrided hardness:900-1000HV
3. Nitriding treatment
Bimetallic layer depth:3 mm
4. Bimetallic alloy welding for screw
Bimetallic hardness:57~69HRC
5. Bimetallic alloy centrifugal casting for barrel
Hard-chrome plating hardness after nitriding:≥950HV
6. Hard-chrome electroplating
Chrome-plating layer depth:0.03-0.09mm
Linearity of screw:0.015mm
Surface roughness:Ra 0.4
The most common types of conical twin screw barrel extruder
types of screw (d/D)
length of work(mm)
quantity ofextruder(kg/h)
speed of screw rotate(rpm)
Φ35/77
810
40-70
5~50
Φ45/99
990
50-80
5~45
Φ51/105
1070
100-150
4~45
Φ51/105
1220
100-150
4~45
Φ55/110
1220
120-180
4~40
Φ60/125
1320
150-200
4~40
Φ65/120
1440
200-250
4~40
Φ65/132
1440
200-250
4~40
Φ70/140
1460
220-300
4~40
Φ75/150
1480
250-320
4~35
Φ80/143
1660
300-360
4~35
Φ80/156
1800
300-360
4~35
Φ90/184
2000
400-500
3~35
The most common types of parallel twin screw barrel extruder
D35/5
D45/2
D50/2
D60/2
D65/2
D70/2Â Â
D72/2
D75/2
D80/2
D85/2
D90/2
D93/2
D100/2
D105/2
D110/2
D115/2
D120/2
D125/2
D130/2
D140/2
D150/2
D160/2
D170/2
D180/2
D190/2
D200/2
D200/2
D250/2
Screw types:
Gradual change, chop, barrier, distributary, separate, air exhausting, pin, mixing and etc.
For good plasticizing effect, we have different design of screw barrel to meet customer's demand.
Specification :
Dia 20mm-250mm; L/D=15-45
Scope of Application:
1. Generally plastic material
2. Pipe/ Profile/ Sheet/Pelletizing
3. WPC, ABS, TPR, TPU, PMMA, C-PVC, UPVC, RPVC, PET, EVA, PU,PE etc
Treatment:
Nitrized, Chrome coating, Quenching, Bimetallic
We are foucs on each process to make sure each screw barrel is qualified according to technical requirement. 
Packaging Details:
1. Be brushed anti-corrosive oil on extruder machine single screw.Â
2. Packed with film.Â
3. Packed in the AA wooden.
Please provide samples or requirements about dimensions and tolerances of , semi-finished and finished products, the equipment, the monthlly comsumption quantity, the current screw and barrel you are using, HRC and so on.
For more information, please kindly contact as below:
Mobile: 0086-13917356326
Technical Information for Conical Twin Screw Barrel
Main Base materials
1.38CrMoAlA (SACM645)
Main Alloy Materials
1. Ni-based alloy/Deloro alloy
2. SKD-61 (Special Tool Steel)
2. Tungsten carbide/Wolfram carbide
3. 42CrMo (Ultrahigh StrengthSteel)
3. NiCo-based alloy
4. DC53 (Cold WorkDie Steel)
4. Fe-based alloy
5. W6Mo5Cr4V2 (High-SpeedToolSteel)
5. Co-based alloy
Processing Technics
1. Heat treatment
Technical parameters
Nitriding layer depth:0.5-0.8mm
2. Quenching
Nitrided hardness:900-1000HV
3. Nitriding treatment
Bimetallic layer depth:3 mm
4. Bimetallic alloy welding for screw
Bimetallic hardness:57~69HRC
5. Bimetallic alloy centrifugal casting for barrel
Hard-chrome plating hardness after nitriding:≥950HV
6. Hard-chrome electroplating
Chrome-plating layer depth:0.03-0.09mm
Linearity of screw:0.015mm
Surface roughness:Ra 0.4
The most common types of conical twin screw barrel extruder
types of screw (d/D)
length of work(mm)
quantity ofextruder(kg/h)
speed of screw rotate(rpm)
Φ35/77
810
40-70
5~50
Φ45/99
990
50-80
5~45
Φ51/105
1070
100-150
4~45
Φ51/105
1220
100-150
4~45
Φ55/110
1220
120-180
4~40
Φ60/125
1320
150-200
4~40
Φ65/120
1440
200-250
4~40
Φ65/132
1440
200-250
4~40
Φ70/140
1460
220-300
4~40
Φ75/150
1480
250-320
4~35
Φ80/143
1660
300-360
4~35
Φ80/156
1800
300-360
4~35
Φ90/184
2000
400-500
3~35
The most common types of parallel twin screw barrel extruder
D35/5
D45/2
D50/2
D60/2
D65/2
D70/2Â Â
D72/2
D75/2
D80/2
D85/2
D90/2
D93/2
D100/2
D105/2
D110/2
D115/2
D120/2
D125/2
D130/2
D140/2
D150/2
D160/2
D170/2
D180/2
D190/2
D200/2
D200/2
D250/2
Screw types:
Gradual change, chop, barrier, distributary, separate, air exhausting, pin, mixing and etc.
For good plasticizing effect, we have different design of screw barrel to meet customer's demand.
Specification :
Dia 20mm-250mm; L/D=15-45
Scope of Application:
1. Generally plastic material
2. Pipe/ Profile/ Sheet/Pelletizing
3. WPC, ABS, TPR, TPU, PMMA, C-PVC, UPVC, RPVC, PET, EVA, PU,PE etc
Treatment:
Nitrized, Chrome coating, Quenching, Bimetallic
We are foucs on each process to make sure each screw barrel is qualified according to technical requirement.Â
Packaging Details:
1. Be brushed anti-corrosive oil on extruder machine single screw.Â
2. Packed with film.Â
3. Packed in the AA wooden.
Please provide samples or requirements about dimensions and tolerances of , semi-finished and finished products, the equipment, the monthlly comsumption quantity, the current screw and barrel you are using, HRC and so on.
For more information, please kindly contact as below:
Mobile: 0086-13917356326