38crmoala bimetallic screw nitrided barrel for PMMA material
We are in the China's Screw Town-Jingtang Town in Zhoushan City, and we are one of the biggest factory here with more than 15 years experience.
All our screws&barrels are in high quality,woderful design and competive price.
The picture you click is our extruder screw&barrel, (but we also produce injection screw barrel,blowing machine screw barrel, rubber machine screw barrel, conical twin screw barrel, parallel twin screw barrel and ext.) About the extruder screw barrel,the specifications and technical dates are list at following:
Specifications:
Single screw and barrel for extruders
Screw Diameter:20-500mm
Maximun screw length: 10000mm
Barrel inner bore dia500mm
Technical dates:
| Hardness after Hardning&tempering: | HB280-320 |
| Nitrided Hardness: | HV850-1000 |
| Nitrided Case Depth: | 0.5-0.8mm |
| Nitrided Brittleness: | Less than Grade 1 |
| Surface Roughness: | Ra 0.4 um |
| Screw Straightness: | 0.015mm |
| Surface Chromium-plating's Hardness after Nitriding: | ≥900HV |
| Chromium-plating Depth: | ~0.20mm |
| Alloy Hardness: | HRC56-68 |
| Alloy Depth: | 0.8~2.0mm |
| Bimetallic Hardness: | HV950-1100 |
| Bimetallic Depth: | 1.5mm~4mm |
Processing:
REMARK:
· We are able to take mapping, design for clients and make products as per customer's drawing or sample excellently , also can help customer to repair the old screw and barrel by useing bimetallic-alloy process.
· Screw structure, compression ratio and material can be changed according to different products and output.
· Technological Process can be chosed acoodring to your requirments.
· Commonly used materials: 38crMoAIA, nitrogen treatment . Various high quality alloy steels , according to different usage, the choose for alloy is different, some require for abrasion-resistant while some require for corrsion resistant.
For standard, we have Fe-based, Ni-based, W2C alloy,Tunsten alloy etc for choice.
About QunYing:
Our Strength: We have an experience of more than many year of manufacturing and designing Plastic machines, varied Screws and Barrels and spares. We concentrate on improving quality, updating design and enhancing service.
Our products: Screws Barrels for Injection, Extrusion, and Blow Molding applications; relevant accessories(such as die head, gearbox, filter screen changer and so on); plastic processing machinery.
Location advantage: located in China's Screw Town - Jintang Town in Zhoushan City, near to Ningbo Port and Shanghai Port.
Market areas: global sales network reaching South America, Eastern Europe, Southeast Asia, Africa, Oceania and the Middle East.
We promise: We assure the customer benefits, We provide competitive price, We Emphasis On Cooperation.
