Ceramic And Alumina Ball ,Alumina Ball,Alumina Grinding Ball,Alumina Ceramic Ball Ningbo Cijie Chemical Equipment Co., Ltd. , https://www.zjchemicaltower.com
Screw Elements/Segment Screw Barrel plastic machinery screw barrel, plastic machinery components, twin co-rotating screw barrel, counter rotating screw barrel
Specification:
Parallel twin screw diameter: Φ 18-Φ 177mm
Material:
1)W6Mo5Cr4V2
2)38CrMoAlA(JIS SACM645)
3)42CrMo(AIS14140)
4)S45C
Technics:
1)Heat treatment
2)Nitriding treatment
3)Vacuum quenching
Technical parameter:
D/d ratio: 1.55
Nitrided layer depth: >=0.4mm
Nitrided hardness: 900-1000HV
Terms and Conditions:
Production time: 25 days
Packing: Export standard(as customers' requests)
Trade Terms: FOB, CNF, CIF or DHL, TNT
Payment Terms: T/T, L/C
Warranty and service: 1 year
Our advantages:
1)Excellent raw materials
2)Good customer services and technical services
3)Competitive pricing
4)Rigorous quality inspection
5)On time delivery
Experienced manufacturer, we will be the best choice.
Screw Alignment
0.015mm
Nitride Brittleness
≤Grade 1
Depth of Nitride Layer
0.5~0.8mm
Hardness of Nitride
HV1000~1100
Quenching and Tempering HardnessÂ
 HB240-280Â
Surface Roughness
 0.045mm