1.Product Introduction
Linner is usually used inside of the barrrel , near to the screw
elements, So its inner wall is easily worn and corroded by
materials.
2.New Materials Introduction
Based on long years of experience for the manufacturing, in order
to long last the service life of the liner or barrel liner, we
developed our special new materials OS02H , a kind of
Nickel-Chromium- Tungsten alloy.
Nickel-Chromium- Tungsten alloy has excellent abrasion resistance
and corrosion resistance. The increase of Cr content in the
nickel-chromium alloy matrix contributes to the oxidation
resistance, high temperature resistance and corrosion resistance of
the alloy. At the same time, the addition of CrB is better than WC.
The microhardness of CrB is as high as 4000-4200DPH, which is close
to diamond. It is more conducive to improving the overall strength
of the alloy. Due to the high density of WC, it is about 15.7g/cm3,
while the matrix of nickel-chromium alloy is only about 8g/cm3. The
melting is caused by the uneven surface and depth of the alloy due
to the easy segregation of WC, so the content and particle size of
WC must be controlled.
Nickel-Chromium-Tungsten alloy( we call OS 02H) hard phase
increased to about 50%, OS02 is only ten to thirty,Moreover, the
fusion is not sufficient, and the microscopic pores are relatively
obvious, which is reflected by the Rockwell hardness HRC of only
52-55.While the Rockwell hardness of nickel chromium tungsten alloy
(OS02H) is HRC56-64, the conventional control is HRC58-60. The
service life is 3-5 times longer then WR5 or CPM10V.
Nickel-Chromium-Tungsten alloy( OS02H )on the basis of Ni60 in
accordance with foreign twin screw working conditions of the
formula, greatly improved Hard phase carbides (containing tungsten
carbide chromium carbide and other carbides), and the nickel pool
fullDissolve. Our Ni-Cr -W alloy layer can reach HRC64 is the best
proof.
3.Liner Types
Single metal liner,
Bimetallic compound liner,
Sintered process composite liner
spray welding process composite liner.
4.Bimetallic Compound Liner Features
Material Parameters Temperature Resistance:
Temperature limit 600℃
Alloy Layer Thickness: ≧1.8mm
Alloy Layer Hardness: 57-64HRC
The Main Process Is Different (from the original sintering process
to the current spray welding process) The product has better
densification, the hardness can reach more than 57 degrees, and the
service life of the product is 3-5 times that of the sintering
process.
5.Main Brands Extruder for using the Liner
| Twin screw elements available for the following brands |
| Clextral | KraussMaffei | Leistritz | JSW | Buhler |
| Toshiba | Coperion | Berstorff | Maris | KOBE |
| Wenger | CPM |
6.Production Equipments
At present, the company’s factory area exceeds 3000 square meters,
and an additional 3000 square meters are under planning and design,
covering the complete production process of material research and
development, main component production, and testing. The company
has 6 technical person,over 40 workers, and multiple imported
production and testing equipment from Taiwan and Germany.
7. Why Choose Us
1) Independent research and development of materials and processes
can ensure the performance and process of materials to the maximum
extent, and greatly prolong the service life compared with ordinary
products, while the main supplier in the market only buy raw
materials for machining.
2) Independently develop the process of key products, and
constantly improve and enhance the old process to achieve the best
product performance.
For example, we changed the production process for barrel liner and
liner from sintering to spray welding. Which increased the product
service life 3-5 times then normal products.
3) Continuously improving and optimizing product appearance of the
composite layer ,which greatly improved the service life of
products.for the separately linner and Barrel Liner, we changed the
Composite layer from thin 8 shape to ellipse flat angle shape,
which increased the product service life greatly.
