Medium Chromium Alloy
- Model：Medium chromium alloy grinding ball
Weight：0.11~8.74kg
Surface hardness：≥48 HRC
Application range：It is widely used in powder preparation and superfine deep processing of industries, such as building materials, mine, chemical engineering, ceramic material, paper-making, magnetic materials.
Medium Chromium Alloy Grinding Ball
Introduction
High chromium alloy grinding ball is widely used in powder preparation and superfine deep processing of industries, such as building materials, mine, chemical engineering, ceramic material, paper-making, magnetic materials. Its surface hardness can up to 65HRC, hardness gradient is evenly distributed. Low wear friction, good toughness, product quality is not lower than the standard GB/T17445-2009, there is no deformation. It increases recovery rate of concentrate and production capacity of mill, prolongs the service life of liner plate of the mill, and reduces the cost of production.
Production Technology
Medium frequency furnace smelts high quality steel scrap, chromium alloy and other alloy materials first, after micro alloying proce ssing is cast molding with steel model. Constant temperature pouring ensures there is no sand inclusion, stoma, collapse and other quality defects. Heat treatment oil quenching process, quenching and tempering will change internal structure of the ball, reduce the internal stress of sphere, ensure breaking rate to further improve the performance after quenching. Semi-finished product and finished product adopt advanced spectrum detection to ensure the stability of chemical compositionand performance.
Chemical composition
|
Name |
chemical composition（%） |
|||||||
|
C |
Si |
Mn |
Cr |
Mo |
Cu |
P |
S |
|
|
Medium chromium alloy grinding ball |
2.2-3.3 |
≤1.2 |
0.5-1 |
3-6 |
0.6-1 |
≤1 |
≤0.05 |
≤0.05 |
Mechanical properties and metallographic structure
Name
Surface hardness
（HRC）
Impact value
（J/cm2）
metallographic structure
Falling ball impact fatigue service life
Medium chromium alloy grinding ball
≥48
≥3
P+C
≤Φ80
≥15000
≥Φ80
≥10000
P- pearlite C- carbide
Specification
specification（mm）
unit weight
（kg）
quantity（pc/t）
specification（mm）
Unit weight（kg）
quantity（pc/t）
Φ30
0.11
9091
Φ90
2.90
345
Φ40
0.25
3891
Φ100
4.00
250
Φ50
0.50
2000
Φ110
5.30
188
Φ60
0.86
1153
Φ120
6.80
147
Φ70
1.37
729
Φ130
7.70
129
Φ80
2.05
487
Φ140
8.74
114
Contact us:
|
|
Serena Fu |
Kira Zhang |
Teresa Zheng |
|
|
serena.fu@hot-mining.com |
kira.zhang@hot-mining.com |
teresa.zheng@hot-mining.com |
|
Skype |
Serena20140924 |
kira.zhangjing |
teresa.zheng123 |
|
+86 151 0833 3341 |
+86 152 8105 1932 |
+86 152 8162 6323 |
