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1.ordinary nitriding screw and barrel·2.bimetallic screw and barrel·3.high speed screw and barrel
| Place of Origin | Zhejiang China (Mainland) | Model Number | Single screw |
|---|---|---|---|
| Condition | New | Screw Type | blowing single screw |
| Screw Diameter | 20-300mm | Length Diameter Ratio | L/D:20-36 |
| Identification | ISO9001-2008 | Application | Film blowing,box,bottle |
| Hardness of Nitriding | HV850-1000 | Hardness of Bimetallic | HRC50-65 |
| Nitrided Case Depth | 0.5-0.8mm | Alloy Depth | 0.8-2.0mm |
| Details | 1.ordinary nitriding screw and barrel · 2.bimetallic screw and barrel · 3.high speed screw and barrel |
| Packaging Detail | oil film wooden case |
|---|---|
| Delivery Detail | about 30 days |
We can produce screw and barrel according to your design,
Also we can design screw and barrel according to your requirements.
Screw and Barrel Disply
Technical specifications
Technical Index
| Hardness after hardening and tempering: | HB280-320 |
| Nitrided Hardness: | HV850-1000 |
| Nitrided case depth: | 0.50-0.80mm |
| Nitrided brittleness: | less than grade 2 |
| Surface roughness: | Ra 0.4 |
| Screw straightness: | 0.015 mm |
| Surface chromium-plating's hardness after nitriding: | ≥900HV |
| Chromium-plating depth: | 0.025~0.10 mm |
| Alloy Hardness: | HRC50-65 |
| Alloy depth: | 0.8~2.0 mm |
Materials & Processes
1.Quality 38CrMoAlA (JIS SACM645)
2.Quality Duplex Stainless Steels
3.42 CrMo (JIS SCM440)
4.40Cr
5.GH113
6.SKD11
7.SKD61 (H13)
8.Gr12MoV
9.Quality Powder Metallurgy Raw Materials
10.Cold/Thermal Spray Hard Metal Process
11.Advanced nitriding Process
12.Corrosion & Abrasion Resistance Bimetal Spraying Process
Our advantages:
The excellent complete equipments
Professional team of engineers
The experienced workers
Wearable and durable screw and barrel
Over 20 years experience on making screw and barrel
Located in the biggest screw town of China, which has convenient traffic.
General Process
confirm the design--arrange the order--Laying-off the material--drilling--
rough turning--rough grinding--hardening & tempering--finish turning outer
diameter--rough milling threand--alignment (removal of material deformation)--
finished milling thread--polishing--rough grinding outer diameter--milling the end
spline--nitriding treatment--fine grinding--polishing--packaging--shipping
products application
Complete Equipments
CNC Milling Machine
7.2 meters pit tempering furnace and7 meters pit nitriding furnace
Quality Inspect
1.Management System:ISO9001:2008
2.Advanced quality inspection center
3.Digital vickers hardness tester
4.Portable’s hardness machine
5.Metal ultrasonic flaw detector
packages
workshop
company introduce
In strict accordance with the ISO9001-2008 international quality system,to ensure the quality of product reach theinternational advanced level.
our other products,different kinds of screw and barrel
Swing beam cutting press/shoe cutting machinery
TST; TaiSuo Coils coil heater
380V SUS304 integrated pipeline electric hot oil system for quadriplex extrusion production lines with brand electric appliances
yaskawa SJDE-02ANA plastic & rubber machinery parts
Large CNC Machinery Turned Excavators Steel Parts
conical twin screw and barrel
