
Company Information
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Contact SupplierGood day to you , this is kaylee from ningbo tizatech . Over 29 years in screw and barrel line , we have drawings for haitian injection molding machines and most of drawings for chen hsong .
our main products is :
injection machine screw & barrel .
12~450mm diameter
25~80000g shot weight
250~32000kn mould clamping force
extrusion screw & barrel .
9~450mm diameter
12~55 ld
base materials:
38crmoala ( jis sacm645)
42crmo (jis scm440)
40cr
gh113
skd11
skd61(h13)
gr12mov
duplex stainless steels
technical details
hardness after hardening & tempering
hb280-320
heat treatment of screw
nitriding 120 hours
hardness of nitration layer
hrc 56-58
hardness of bimetallic layer
hrc 62-64
nitride hardness
hv850-1000
nitride brittleness
>=grade two
nitrated layer of screw
0.5-0.8mm
fragility of nitration
less than grade 1
bimetallic layer thickness
2-4 mm
screw straightness
0.015mm
surface roughness
ra 0.4um
hard chrome plating (hcp)
>= 900hv
hcp layer depth
0.025-0.10mm
means of transport
by sea or by air
delivery date
25-30 days
packaging
ply wood case