|
|
|
| HCWCI/Carbon Steel Bimetal Liner by Liquid-Liquid Compound Lost Foam Casting |
| XIAO Xiao-feng1,2,YE Sheng-ping2,YIN Wei-xin3,XUE Qiong4 |
1. School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan 430073, Hubei, China
2. State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
3. Wuhan Zhike Abrasive-Resistant Material Science and Technology Development Co Ltd, Wuhan 430073, Hubei, China
4. College of Science, Wuhan University of Technology,Wuhan 430079, Hubei, China |
|
|
|
|
Abstract Impact, friction and corrosion from the grinding balls and the grinding medium during the mineral processing result in liner breakage. Liner, made from Hadfield steel or alloyed steel, could not have served in wet grinding environment for more than ten months. Composite liner, made from HCWCI (high Cr white cast iron) and carbon steel, has been developed successfully with liquid-liquid composing process based on LFC (lost foam casting). The microstructure of composite was analyzed with optical microscope, SEM (scanning electron microscope)/EDX energy-dispersive X-ray and XRD (X-ray diffraction). According to micrograph, the combination region of two metals was staggered like dogtooth, no mixtures occurred between two liquid metals, and its interface presented excellent metallurgical bonding state. The results of mechanical property test show that, the hardness of HRC, the fracture toughness, and the bending strength are more than 61, 16.5 J/cm2 and 1600 MPa, respectively. Comparison between liners made from bimetal composite and alloyed steel has also been investigated in industrial hematite ball mill. The results of eight months test in wet grinding environment prove that the service life of bimetal composite liner is three times as long as that of one made from alloyed steel.
|
|
Received: 06 September 2011
Published: 30 October 2012
|
|
Corresponding Authors:
Xiao-Feng XIAO
E-mail: 18971600996@189.cn
|
|
|
|
| [1] |
LUO Zong-an��CHEN Xiao-feng��XIE Guang-ming��WANG Guo-dong��DANG Jun�� WANG Guang-lei. Microstructure and mechanical property of vacuum hot-rolled 825 alloy/X65 pipeline steel clad plate[J]. Chinese Journal of Iron and Steel, 2017, 52(3): 64-69. |
| [2] |
CHENG Zhen-bang��WANG Hong-xin��ZHANG Gang, ��LIN Hua. Forming mechanism of the brazed joint of double wall brazed tube[J]. Chinese Journal of Iron and Steel, 2016, 28(11): 51-55. |
| [3] |
LI Guang-long�� ZHAO Tan�� FAN Liu-qun�� YUAN Si-yu�� LI Wen-bin�� LI Li-ming. Microstructure and properties of clad rolling SM45 steel plate[J]. Chinese Journal of Iron and Steel, 2015, 50(3): 59-63. |
| [4] |
GUO Wan-gen1,LIU Yue2. Research on Oxidation Resistance of High Chromium Cast Iron With Different RE Adding at High-Temperature[J]. Chinese Journal of Iron and Steel, 2011, 29(5): 15-19. |
| [5] |
MA You-ping,SONG Shao-feng,LI Xiu-lan,DANG Xiao-ming. Effects of Multi-Alloying on Carbide of Eutectic High Chromium Cast Iron Containing 31%Cr[J]. Chinese Journal of Iron and Steel, 2011, 23(08): 40-43. |
| [6] |
FENG Ming��jie;WANG En��gang;WANG Jun��gang;LUO Chun��min;WANG Kai;HE Ji��cheng. Liquid��Solid Bonded Interface of W9Mo3Cr4V/45 Steel Composite Roll[J]. Chinese Journal of Iron and Steel, 2008, 20(9): 36-0. |
|
|
|
|
2012, Vol. 19 
