This 2 sets of Demag screw and barrel are both bimetallic,because of our excellent quality,this customer place this order 3 monthes later.
Screw size: ø45*1275mm, Barrel size: ø120*1275mm
Compare with the first order, this two sets customer changed the hopper hole.
The follwing picture is barrel of the first order.
Now: the barrel is:
Products details:
Advandages of bimetallic
1. Corrosion resisting,
Some plastic materials such as Fluorine,PVC,ABS or add additiveGF,etc,when temperature rise higher,will send out corrosive gas, which will damage your screw and barrel.Common nitrided screw barrel can not service long time,But bimetallic screw barrel is different,the bimetallic layer could resist the corrosion,make the screw barrel working life longer.We guarantee you the working life is one year,butour customers always use several years.
2.Wear resisting
Some times,we also need to add some materials easy to wear,such asCaco3,or recycled materials,these materials are called badmaterials.Common nitrided screw barrel also could not serve you longer.Maybe half year, you need to change one set. In this situation,if youuse our bimetallic screw barrel,we can guarantee one year. But ourcustomers always use several years.
We-HUACHEN bimetalilc standard:
1. Standard grade: 38CrMoAlA + nitriding 96 hours
2. Bimetallic grade: 38CrMoAlA + bimetallic alloy
3. HC-A grade: Tungsten carbide 40%
4. HC-B grade: Tungsten carbide 25%
5. HC-C grade: Tungsten carbide 15%
We-HUACHEN Bimtallilc Product Show:
Second hand extruder machine bimetallic screw barrel
Two types of bimetallic screw:
The bimetallic also could divide two types, like the above picture show:
Type 1:Sparying the bimetallic on the screw flight,this is very common in the market. If your plastic material is not very very bad,we suggest you choose this type, because of its economy.
Type 2:Coating the bimetallic on the whole screw,this is new technicalthese years. The advantage:Working life more longer than type 1,the disadvantage: Price is also very higher than type 1.
Injection molding screw we process as the following technical parameter:
Injection screw barrel ---Technical Parameter: | |
Nitride Case Depth | 0.6mm-0.9mm |
Nitride Hardness | 960-1160HV |
Nitride Brittleness | ≤Grade One |
Surface Roughness | Ra0.4um |
Screw Straightness | 0.015mm |
Duplex Alloy Depth | 1.5mm-3.5mm |
Duplex Alloy Hardness | HRC60-75 |
Chromium Coating Thickness | 0.025~0.10mm |
Injection screw barrel ---Technical Process: | |
Laser Coating Tungsten Carbide | Vacuum Quenching |
PTA Melt-Welding Alloy | Titanizing |
Centrifugal Mould Bimetallic Alloy | Nickel Plating |
Advanced nitrogen oozes handicraft | Chorme Plating |
Single injection screw barrel for Injection molding machine: | |||
Diameter | Φ15~Φ500mm | Min. Order | 1 piece |
Materials | 38CrMoAlA (JIS SACM645) 42CrMo (JIS SCM440) SKD61 GH113 | Discount | Available |
Application | PVC PE PP ABS PET... | Payment Term | T/T L/C WEST UNION |
Heat-Treatment | Bimetallic OR Nitrided Hardness:>980HV | Delivery Term | 10-25 working days |
Packing | Wapped up by film in wooden case | Port Departure | Ningbo/Shanghai Port |
Guarantee | Common Nitrided:1-3 years Bimetallic: much longer lifetime | ||
Various kinds of screw tips,non-return valve,check rings. We also accept small order like several screw tips or others.
About Huachen
Factory Show:
Machines&processing show:
Nitrogen oven & Bimetallic Oven show:
Our advantages:
- Screw and barrel for various models
- Professional engineers design for you
- Thousands of drafts can supply for you
- Professional Tech. and R&D team
- Insist on developing screws and barrels for more injection molding machine and extruder machine models
-Our screw barrel can ensure the well performance and low energy
consumption of extruder and Injection molding machine. We insist on the principle of quality first, honest to customers
And besides the injection molding machine screw and barrel, we also process extruder screw and barrel, conical twin screw and barrel, parallel twin screw and barrel,rubber machine screw and barrel,planet screw and barrel.
We can provide thousands of drawings
We can design for you according to your requirements
We can process according to your drawings.
Please contact us,if you have any questions. Mail,phone,skype all are OK.
My skype:lillianyao0421
