China high quality screw barrel

الوصف

Materil:    1)high-quallity *8CrMoALA

                 2)*2CrMo(JIS SCM**0)

                 3)9Cr8Mov

                 4)CW6M*5Cr4V2

                 5)SKD*1        
                
                 6)SKD*1

 Heat-treatment:

1,Nitriding treatment

2,Electroplated hard-chrome finish

3,High-frequency quenching

4,Spray coating Bimetallic-alloy

5,Vacuum quenching

 Technic date

Hardness After Hardening &Tempering: HB**0 ***0 Nitrided Hardness: Hv*******0 Nitrided Depth: 0.***0.7mm Nitrided Brittleness: ≤Grade 2 Surface  Roughness: Ra0.4 Screw straightness: 0.**5mm Surface Chromate-plating's Hardness After Nitrided: ≥**0Hv Chromate-plating Depth: 0.***0.*0mm Bimetallic-alloy Hardness: HRC*6 **5 Alloy Depth: 0.**2.0mmTyper of injection machine screw and barrel

1,Power of locknut :**0KN*****0KN

2,Capacity of injection:*0g*****0g

3,Diameter of screw:Φ*0mm-Φ**0mm

4,Screw can be mated with different heads of screw.
  
   Cylinders can be mated with different sprinkler heads.