Rubber screw and barrel is used for Rubber extruder.
And it have two types.
1)Rubber pined screw and barrel.Φ75-Φ300mm.
2)Rubber extruder with cold/hot-feed screw and barrel.Φ30-Φ300mm
Technical Parameter:
1.Quenching and Tempering Hardness:HB280-320
2.Nitriding Hardness:HV850-1000
3.Nitriding Depth :0.45~0.7mm
4.Nitridng Brittleness :2 Level
5.Surface Roughness:≤Ra0.4
6.Screw Straightness:0.015mm
7.Nitrided Chromium Coating Surface Hardness≥900HV
8.Chromium Coating Thickness :0.025~0.10mm
9.Duplex Alloy Hardness:HRC50-65
10.Duplex Alloy Depth:0.8~2.0mm
Materials
1.Quality 38CrMoAIA (41CrAIMo7)
2.Quality Duplex Stainless Steel
3.42CrMo
4.40Cr
5.Zinc 3# Steel
6.SKD61(H13)
7.Gr12MoV
8.Quality Powder Metallurgy Materials
Technologies
1.Anti-corrosion and Wear-resisting Duplex Metal Spraying Technology
2.Hard Metal Cold/Thermal Spraying Technology
3.Advanced Nitriding Technology