Place of Origin:
Jiangsu, China (Mainland)
Brand Name:
Chen's Liner
Certification:
ISO 9001:2008
Model Number:
DF121
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High Cr White Iron Grinding Mill Liners For Coal-fired Power Plants
Quick Details
a. Supply high Cr White Iron Combined Liners for coal-fired power plants.
b. Supply qualified custom-made coal mill liners.
Description:
Double-inlet & Double-outlet Mill Liners
With our special double-media quenching process,the liners can achieve the following features:
1.Ideal hardness: HRC≥58.
2. Ideal toughness value: More than AK5J.
3.Even hardness distribution: The hardness difference from surface to the core of each piece of liner casting is less than HRC3.
4. Better wear performance: The anti-wear properties are 2.5 times as much as those of high manganese steel in wet grinding condition.
5. Better surface quality with resin-sand molding process.
Our main product series are ball mill liners,wear parts for crushers and grinding media.Boltless Ball Mill Liners decrease maintenance of liners and save the cost of bolts.What’s more,our boltless-liner design can exert the maximum quenching hardness of metal material while the bolted-liner design has to scarify the quenching hardness to get better toughness because each bolt hole is a source of thousands of crackings.
Patented Anti-wear Product
We possess famous patented product------ Combined Self-fastened (Boltless) Ball Mill Liners, or called CHINA BEST LINER.
In 2012,we registered a new patent about Liner Technology.
In December of 2000,we successfully registered the international patent in Canada.
In 1988 and 1997,we claimed domestic patents for ball mill liners .
The outstanding advantage of our liners is boltless.
The general advantages in coal mills are as follows:
|
Output Increased |
About 5% |
|
Power Consumption Reduced |
5-20% |
|
Maintenance Decreased |
Above 98% |
|
Liner Consumption Reduced |
20-80% |
|
The liners are easily installed and existing mills need no modification. |
|
The additional advantages in coal mills are as follows:
|
No leakage of powder |
|
No repairs during service periods |
|
Better reliability and stability |
|
Production Improvement |
|
Noise reduction |
So far,we have supplied more than 400 sets of boltless coal mill liners for Chinese Coal-fired Power Plants.
<1> Martensite Cr-Mo Alloy Steel Coal Mill Liners
In the normal working condition,the lifetime of the liners is about 4 to 6 years.
<2> High Cr Coal Mill Liners
In the normal working condition,the service lifetime of the liners is more than 8 years.
In Huaibei Power Plant,our high Cr Coal Mill Liners are used for 14 years without Repairs.
<3> Cr26 Coal Mill Liners
In the normal working condition,the lifetime of the liners is more than 10 years.
In the recent 20 years,our liners have been widely used in large,medium and small ball mills in Chinese power generation,mining,cement,Chemical engineering and metallurgical industries and super fine pulverizing equipments.It is the only recommended liner product in the latest standard of the electric-power industry in China.
Technical Parameters
Wuxi Orient Anti-wear Engineering Co.,Ltd.
Chemical Composition & Mechanical Property of Wear-resistant Castings
|
Item |
Cr-Mo Alloy Steel I |
Cr-Mo Alloy Steel II |
Cr-Mo Alloy Steel III |
High Cr white iron |
High Cr Alloy Steel |
High Manganese Steel |
Ni-Hard cast iron |
|
C |
0.30~0.50 |
0.65~0.90 |
0.40~0.90 |
2.40~3.20 |
1.1~2.2 |
0.90~1.30 |
2.40~3.60 |
|
Si |
0.50~1.20 |
≤0.75 |
0.70~1.20 |
0.60~1.20 |
0.60~1.20 |
≤0.08 |
≤0.80 |
|
Mn |
0.40~1.20 |
0.50~1.20 |
0.60~1.00 |
0.50~1.00 |
0.50~1.00 |
11.00~18.00 |
≤2.0 |
|
Cr |
1.70~2.50 |
1.50~2.50 |
4.00~7.00 |
12.00~30.00 |
11.00~30.00 |
1.50~2.50 |
1.5~10 |
|
S |
≤0.04 |
≤0.06 |
≤0.04 |
≤0.04 |
≤0.04 |
≤0.04 |
≤0.15 |
|
P |
≤0.04 |
≤0.06 |
≤0.06 |
≤0.06 |
≤0.06 |
≤0.06 |
≤0.15 |
|
Mo |
≤0.5 |
≤0.5 |
≤0.5 |
0.10~3.0 |
0.10~3.0 |
≤1.0 |
≤0.10 |
|
Cu |
0.10~0.60 |
≤0.25 |
0.20~0.40 |
0.10~1.00 |
0.10~1.00 |
- |
- |
|
Ni |
≤0.50 |
≤0.30 |
0~0.30 |
0~0.30 |
0~0.30 |
- |
3.3~10 |
|
Re |
≤0.02 |
≤0.02 |
≤0.02 |
- |
- |
- |
- |
|
Equivalent Specifications |
DL/T 681-1999
GB/T26651-2011 |
AS 2074 L2B Mod |
DL/T 681-1999 |
GB/T 8263-1999 AS 2027 Cr27 AS 2027 CrMo 15/3 AS 2027 CrMo 20/2/1 ASTM A532 Class III type A 25% Cr ASTM A532Class II type B 15% Cr-Mo BS 4844 3E DIN1695 NFA32401. |
GB/T 5680-1998 DL/T 681-1999 JIS G 5153-1999 ASTM A 128 DIN GX120Mn12 AFNOR:Z120Mn12 |
GB/T 8263-1999 AS 2027/Ni-Cr1-550 AS 2027/Ni-Cr2-500 AS 2027/Ni-Cr4-500 AS 2027/Ni-Cr4-600 AS 2027/Ni-Cr4-630 ASTM A 532 1-A,B,C,D ASTM A 532 2-A,B,C,D,E ASTM A 532 3-A |
|
|
Material Type |
Martensite Steel |
Martensite or Pearlitic Cr Mo Steel |
Martensite Steel |
Martensite matrix |
Austenitic Mn Steel |
- |
|
|
Hardness |
HRc≥48 |
HB470 & HB 321~370 |
HRc≥50 |
HRc≥56 |
HB≤300 |
HRc≥56 |
|
|
Impact Value |
Ak≥40J |
- |
Ak≥10J |
Ak≥4J |
Ak≥80J |
- |
|
Our foundry has complete melting,heat treatment and test equipments,such as mid-frequency induction electrical furnaces,quenching and tempering furnaces,blast shot,spectrometer,Rockwell and Brinell Hardness tester,impactor,UT tester and metallographic microscope.We achieved the certificate of quality management system ISO 9001:2008.We have been exporting castings to oversea markets,such as Brazil, Australia and South Africa.
Product Details:
Application :Coal mill
Material :High Cr white iron
Dimensions :As per drawings
Hardness for High Cr White Iron :HRC≥58
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