Could& Hot Feeding Screw and Barrel for Rubber

Product Description

Detail Information For Rubber Screw and Barrel:
Application: for different kinds of rubber.
Customer's Requirement: extrude rubber continuously, stably and uniformly.
Screw's quality: bimetallic quality or nitriding quality.
Barrel's quality: bimetallic quality or nitriding quality.
Detail Information For All Rubber Screw and Barrel:
Brief introduction:
cold& hot feeding screw and barrel, such as pin type, conical type, venting type, injection type and etc, has good torque force& abrasion resistance, rubber will be extruded out uniformly and stably.
Specification:
1:For cold feeding screw and barrel
Diameter range: Ф40-Ф300MM
L/D ratio: 8-20
2: For hot feeding screw and barrel
Diameter range: Ф30-Ф250MM
L/D ratio: 4-8
3: for Pin type screw and barrel:
Diameter range: Ф60-Ф250MM
L/D ratio: 12-18
Base material :
38CrMoAlA(JIS SACM645) from BAOSTEEL company.
Alloy Layer: Fe, Wc, Si, Cr, Ni, Co, C, Mo, B and etc ( different quality has different formula).
Quality grade for screw and barrel:
Nitriding quality--------common quality type.
Bimetallic quality-------better abrasive& corrosive resistance, has different quality grade.
Heat treatment:
Advance hardening and tempering
Nitriding treatment
Technical Parameters:
Nitriding depth: 0.50mm-0.80mm
Nitriding hardness: HRC56-58
Surface roughness: Ra 0.4
Screw straightness: 0.015mm
Alloy layer depth: 2mm-3mm
Alloy layer hardness: HRC56-64
OULIN SCREW: YOUR LOYAL PARTNER FOR SCREW AND BARREL
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