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Cr26型高铬铸铁水泥球磨机耐磨衬板的开发
Development of Wear-resistant Liner of Cr26 High Chromium Cast Iron Cement Ball Mill
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- DOI:
- 作者:
- 吕远 眭文杰 亓海全 秦翔智
LYU Yuan;SUI Wenjie;QI Haiquan;QIN Xiangzhi
- 作者单位:
- 桂林理工大学广西建筑新能源与节能重点实验室 鑫光热处理工业有限公司（昆山）
l.Guangxi Key Laboratory of New Energy and Building Energy Saving,Guiling university of technology,Guilin 541004,China;Xinguang Heat Treatment Industry Co.,Ltd.,(Kunshan),Kunshan 2153331,China
- 关键词:
- Cr26型高铬铸铁 正交试验 耐磨性
Cr26 type high chromium cast iron orthogonal test wear resistance
- 摘要:
- 开发了一种具有高耐磨性的Cr26型高铬铸铁水泥球磨机衬板材料,采用正交试验的方法获得试验铸铁最佳热处理工艺,并对其组织及性能进行分析。结果表明,试验材料最佳热处理工艺为1 050℃×3 h油冷+300℃×2 h空冷,显微组织为回火马氏体+(Fe,Cr)7C3共晶碳化物+二次碳化物+残余奥氏体,硬度HRC58,冲击韧度3 J/cm2。在最佳热处理状态下,该试验材料具有优异的耐磨性,为12.739 g-1,但其冲击韧度较低。经过最佳热处理工艺后该试验材料耐磨性能优异,可作为高耐磨性的水泥球磨机衬板材料。A Cr26 high chromium cast iron cement ball mill liner material with high wear resistance was developed. The optimum heat treatment technology of test cast iron was obtained by orthogonal test. The results show that the optimum heat treatment technology of the test materials is 1 050 ℃×3 h oil cooling +300 ℃×2 h air cooling, the microstructure is tempered Martensite+(Fe,Cr)7C3 eutectic carbide+secondary carbide +residual austenite, hardness HRC58, impact toughness3 J/cm2. In the best heat treatment state, the test material has excellent wear resistance of 12.739 g-1, but its impact toughness is low. After the best heat treatment process, the test material has excellent wear resistance and can be used as the lining material of cement ball mill with high wear resistance.