group namehardware fitting
Min Order1 piece
brand nameHicoin
payment methodL/C, D/A, D/P, Western Union, Paypal
update timeFri, 02 Mar 2018 10:28:18 GMT
Place of Origin China (Mainland)
Model Number 86
Category screw arbor
surface hardness HV≥950
Straightness 0.015mm
Surface roughness Ra ≤0.4um
Material 38CrMoAl A,Bimetal as well as SKD and others
Port OR Air port Tianjin,Shanghai,New York,Etc
Package Wooden cases, iron cases or according to custom stransportation and customer needs
Production cycle Two weeks
Weight60.00kg / piece
Min Order1 piece
All kinds of screw barrel are made of high quality alloy steel 38CrMoALA. The products are characterized by high wear resistance, corrosion resistance and service life after negative ion nitriding. All technical indicators strictly implement the "JB/T8538-1997" and ISO9002 standards. Screw type: gradient type, mutation type, wave type, double screen type, cone type, shunt type, separate type, exhaust type, pin type, multi type, mixed type, double head, three head, multi type, granulation etc.. Barrel screw compression ratio designed according to different products and different formulations.
Product specifications and technical specifications: | |
Screw processing diameter range: | 25-, 300 |
Length diameter ratio: | L/D=8-40 |
Quenched and tempered hardness: | HB240 degrees -280 degrees |
Nitriding hardness: | HV850 degrees -1000 degrees |
Nitriding depth: | 0.45-0.7mm |
Brittle nitride: | Less than two |
Surface roughness: | Ra0.4 |
Screw straightness: | 0.015mm |
After nitriding surface hard chromium plating: | more than 900HV |
Chromium plating thickness: | 0.05-0.10mm |
Alloy depth: | 0.8-2.0mm |
Dual alloy hardness: | HRC56 degrees ~65 degrees (alloy using nickel based alloy) |
Material Science:High quality alloy steel | 38CrMoALA (JIS SACM645), 42CMo (JIS SCM440), 9Cr18MoV, CW6Mo5Cr4V2 |
Heat treatment: | Nitriding, Electroplated hard chromium coating, High frequency quenching, Spraying corrosion resistant, Wear resistant bimetal layer, Vacuum quenching. |
The main types of screw produced in our factory are: gradual type, abrupt type, PM separation type, split flow type, barrier type, vacuum exhaust type, combination type, flexible type, high speed type, etc.. Widely used in various rubber and plastic principles, such as: PE, PP, PVC, PS, ABS, POM, PC, PSV, PTFE, PVR, PR, UP, PEC, PF, VF,, MP, PMMA, PA, PET, PBT, MPPO, PPS, PI, LCP and so on.
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