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1. Technical parameter:
Product |
38CrMoAIA screw and barrel for extruder machine |
Material |
38 CrMoAlA(JIS SACM645); 42CrMo(JIS SCM440) |
Hardness of nitrogen treatment |
HV900°~1100° |
Tempering hardeness |
HV240 ° ~280° |
Depth of nitrogen layer: |
0.6~0.8mm |
Nitrided Brittleness |
above 1 stage |
Surface Roughness |
Ra0.4 um |
Screw straightness |
0.015mm |
Hardess of surface chromium-plating after Nitriding |
HV≥950HV |
Chromium plating Depth |
0.025-0.085mm |
Alloy Depth |
2.5mm-4mm |
Alloy hardness |
HRC62°~72° |
Heating-treatment |
nitrogen ,electroplated hard -chrome finish,high frequency quenching |
2. Workshop show:
3. Certificate:
4. Our advantage:
1.We have long history and experience working in the field.
2.We have the most advanced equipments and technique in our industry.
3.We have professional engineer, Cad drawer and staffs.
4.We have 100% quality ensure system and 24hours after-sale service system.
5.We have passed third-party assessment, such as CE, SGS and TUV and BV.
Our company:
Zhejiang pinbo plastic machinery co.,ltd is located in ruian wenzhou city with brand of PYM(Former Ruian yumin machine screw co.ltd since
1988). The company is specialized in making screw barrel, gearbox zlyj
series, t die, filter and extruder machine. It has become one of the
largest supplier of main parts in Ruian city which is the basement
of plastic machines.