Apsonic ultrasonics,Sonar Sensor ,Ultrasound Sensor ,Ultrasonic Generator Welding Equipment Co., Ltd. , http://www.nbultrasonicwelder.com
Product
single screw and barrel for extruder
Material
38 CrMoAlA(JIS SACM645);Â 42 CrMo(AISI 4140)
Cr12MoV(JIS SKD-11);4Cr5MoSiV1(JIS SKD-61)
Nitrided Hardness
HV900°~1000°
Hardness after hardening and tempering
HB260 °
Nitrided Depth
0.5~0.7mm
Nitrided Brittleness
above 2 stage
Surface Roughness
Ra0.4
Screw straightness
0.015mm
Hardess of surface chromium-plating after Nitriding
HV≥950HV
Chromium plating Depth
0.05~0.10mm
Alloy Depth
0.8~3.0mm
Alloy hardness
HRC56°~65°
Alloy(bimetallic)
iron,nickel,tungsten,molybdenum
Types of screw barrel
Gradual type,mutant type,wave type,barrier type,double screen type,shunt type,separation type,exhaust type,pin type,mixed type,double-head type,three-head type,multi head type etc.
 
Equipment DIsply
Processing
Packing&Delivery
Â
Product
single screw and barrel for extruder
Material
38 CrMoAlA(JIS SACM645);Â 42 CrMo(AISI 4140)
Cr12MoV(JIS SKD-11);4Cr5MoSiV1(JIS SKD-61)
Nitrided Hardness
HV900°~1000°
Hardness after hardening and tempering
HB260 °
Nitrided Depth
0.5~0.7mm
Nitrided Brittleness
above 2 stage
Surface Roughness
Ra0.4
Screw straightness
0.015mm
Hardess of surface chromium-plating after Nitriding
HV≥950HV
Chromium plating Depth
0.05~0.10mm
Alloy Depth
0.8~3.0mm
Alloy hardness
HRC56°~65°
Alloy(bimetallic)
iron,nickel,tungsten,molybdenum
Types of screw barrel
Gradual type,mutant type,wave type,barrier type,double screen type,shunt type,separation type,exhaust type,pin type,mixed type,double-head type,three-head type,multi head type etc.
Â
Equipment DIsply
Processing
Packing&Delivery
Â
115 Parallel Twin Screw Barrel