Bimetallic screw nitrided barrel for used
extruder machines
Advandages of bimetallic
1. Corrosion resisting,
Some plastic materials such as Fluorine,PVC,ABS or add additive GF,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,but our customers always use several years.
2.Wear resisting
Some times,we also need to add some materials easy to wear,such as Caco3,or recycled materials,these materials are called bad materials.Common nitrided screw barrel also could not serve you longer. Maybe half year, you need to change one set. In this situation,if you use our bimetallic screw barrel,we can guarantee one year. But our customers 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:
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 technical these years. The advantage:Working life more longer than type 1,the disadvantage: Price is also very higher than type 1.
Our BM screw show:
Special design for your special material.
All our products are like a mirror.
Bimetallic screw and Nitrided barrel
This set also contains flange.
Material:
Alloy-steel of high-quality
1)38 CrMoAIA(JIS SACM645)
2)42CrMo(JIS SCM440)
Heat-treatment
Nitriding treatment
Electroplate hard-chrome
High-frequency quenching
Spraying corrosion wear-resisting dual metal layers
Vacuum quenching
Application:
Pipe profile sheet film componding W.P.C
Material: PP PC PE ABS AS PS PVC PMMA PU PET TPU PA
Screw Barrel processing:
CNC Miller machine processing screw
Machine is processing barrel
Machines are milling the inner hole of barrel
Nitrogen Oven work shop
Bimetallic Oven
Our single screw barrel workshop
About HuaChen Screw:
All HUACHEN Brand
screw barrels include bimetallic, nitrided, WC coating, bimetallic-WC coating and etc.
HUACHEN SCREW CO.,LTD. SHOW:
Quality Assurance
Quality is our main forte and we follow varied industry policies for achieving it. Furthermore, our quality consciousness has ensured that we manufacture premium quality Screw & Barrel and machines for the clients. We conduct various quality tests on our range that start from the time of procuring raw material till the final supply of products. Apart from this, our quality controllers continuously check the entire range on different parameters so as to ensure its defect-free nature. Our quality testing laboratory is well-equipped with modern machines and technology that are necessary for bulk production.
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