Customize Rubber Screw Barrel Rubber Screws

Product Description

Rubber Screw barrel, rubber extrusion screw barrel, plastic machinery screw barrel, pins cylinder for rubber machinery
Specification:
Diameter of pin screw and barrel: Φ 75mm-Φ 200mm
Diameter of cold feed or hot feed screw and barrel: Φ 30mm-Φ 300 mm
L/D ratio: 12-18
Technical Information
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
Our advantages:
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly
Experienced manufacture, we will be the best choice.

Type	Model	Hardness (HRC)	Wear resistant	Corrosion resistant	Thickness	Application Glass Fiber
PTA weld	ZB1 38CrMoAlA Ni-base alloy	45-58	Excellent	Special excellent	1.5~3mm	Under 10%
	ZB2 SKD61 Ni-base alloy	45-58	Special excellent	Excellent	1.5~3mm	Under 15%
Nitriding	Nitrided	HV more than 800	Good	Good	0.25mm	/

Types of Bimetallic Screw

For barrels, there are 4 kinds of bimetallic alloys against all types of wear:

Alloy Type		EJS01 Alloy	EJS02 Alloy	EJS03 Alloy	EJS04 Alloy
Wear resistance		Very good	Good	Very good	Excellent
Corrosion resistance		Good	Very good	Very good	Very good
Alloy components		Fe+Ni+Cr+B	Ni+Cr+Co+B	Ni+Cr+Co+V+B	Ni+Cr+Wc+Co+B
Hardness (HRC)		58~64	50~58	55~60	56~62
Temperature area (°C)		less than 400	less 450	less than 450	less than 600
Coefficient thermal	RT-250°C	11.0 x 10 -6	11.0 x 10 -6	11.5 x 10 -6	11 x 10 -6
Expansion (/°C)	RT-400°C	11.4 x 10 -6	11.4 x 10 -6	12.4 x 10 -6	12 x 10 -6

---

>> Hot Sale Dye Fabric Spun Polyester Yarn Sewing Thread Customized Packing
>> High quality customer orientation disposable blood transfusion set
>> Yl-708 Bird Sound Door Bell
>> Ck6136A High Precision CNC Lathe Turning Machine with Bar Feeder
>> Pure Water Treatment Reverse Osmosis System 5000gpd
>> Canned Fruits Canned Sweet Lychee in Light/Heavy Syrup with Lithographed in Easy Open Green Tins -Best Product in Fujian
>> 100% Polyester Filament Sewing Thread
>> ASTM A36 A283 SAE1006 St37 S235jr S355jr Ss400 Black Mild Cold Rolled Ms CRC Low Carbon Steel Plate Coil for Construction Projects
>> SUNLIGHT 152A IMPEDANCE METER
>> Aluminum Splash Shield protect plate for engine gearbox for Cadillac ATS 2.0T 2014-2017
>> Hallmark Best Selling Popular High Technology Production Line for Laminate Flooring
>> Sweet Corn Cream in Can with Milk for Breakfast
>> Portable watch wireless charger outdoor travel emergency power supply can charge watches and mobile phones at the same time
>> New Business Opportunities Pellet Machine Chicken Feed Pellet
>> Coal Slime Rotary Dryer Equipment
>> Factory All in One Self Service Touch Screen Ticketing/Parking Payment Kiosk with Cash Payment Card Dispenser Card Acceptor
>> Convenient Plastic Manual Water Pump for Water Bottles
>> OPT IPL Light Painless hair removal beauty salon equipment Dpl E-Light Photon Acne Treatment Skin Rejuvenation Machine
>> 54.6V 3A LIthium ion Battery Charger for electric boat electric motorcycle
>> Byloo 7m high modulus radial carbon fishing rod