MaterialHigh quality alloy-steel

1) 38CrMoAlA(JIS SACM645)

2) 42CrMo(JIS SCM440)

3) 9 Cr18MoV

4) SKD11

5) C276

6) GH113

Heat-treatment

Nitriding treatment

Electroplated hard-chrome finish 

Medium-high frequency quenchingSpray bimetallic coatingVacuum quenchingApplications

1) For plastic product extrusion:Blow film, sheet, plate, pipe extrusion

2) For chemical fiber extrusion:PET , PA6 , film, non-woven fabric,rope fiber

3) For plastic recycling and pelletizing

4) For cable extrusion: PVC, PE, PBT and rubber fluoride

Advantages:

The high-efficiency screw and barrel designed by JWELL company adopts optimized screw structure，it can separate the material into solid and liquid part quickly, and increase the temperature uniformity of melted material, reduce the internal stress of raw material, achieve high capacity with low speed.

MaterialHigh quality alloy-steel

1) 38CrMoAlA(JIS SACM645)

2) 42CrMo(JIS SCM440)

3) 9 Cr18MoV

4) SKD11

5) C276

Heat-treatment

Nitriding treatment

Electroplated hard-chrome finish

Medium-high frequency quenching

Spray bimetallic coating

Vacuum quenching

Application: for injection molding and extruder

Range of product : inner diameter12~300mm

Effective length: 12000mm

Thickness of nitrided layer: 0.05~0.08mm

Hardness of nitrided layer: more than 900hv

Linearity: 0.015mm/m

Chrome coated layer: 0.02~0.085mm

Application range of plastic material: 

PP,PE,ABS,AS,PS and other common plastics

Material: SACM645,SCM440,38CrMoAlA

Material

High quality alloy-steel

1) 38CrMoAlA(JIS SACM645)

Heat-treatment

Nitriding treatment 

Spray bimetallic coating

Electroplating hard chrome 

Quideline of technique

Depth of nitration layer: 0.05~0.08mm

Hardness of nitration: 900~1000hv

Fragility of nitration: less than grand one

Roughness of the surface: Ra0.4

Linearity of the screw: 0.015mm/m

The surface hardness of chrom plating 

after nitrogention:more than 950hv

Chrome-plating layer 

thickness:0.025~0.085mm