screw & barrel for injection molding machine

The compression ratio of the screw can be designed according to different products and mixtures.

Technical Date:

 Material nature: 38CrMoALA

 Hardness of accent nature: HB280-290

 Depth of nitration: 0.60-0.70mm

 Hardness of the surface:HV900-1050

 Roughness of the surface:Ra0.4um

 Linearity of the screw:0.015mm/m

 Depth on bimetallic layer:>2mm

 Hardness of the dual alloy:HRC55°--62°

 Hardness of Chrome-plating:>HV900°

 Depth of Chrome-plating:0.03--0.08mm

 Temperature of quenching:930°-950°

 Temperature of brittleness:620°-650°

The  company can provide corresponding support accessories bases on users' demand such as over-rubbers heads, over-rubber rings, nuzzle nut, flange,ect,design special screws along with mapping imported fittings for users.

screw & barrel for injection molding machine