锻造变形量及热处理温度对玻璃窑炉用钼电极的结构和性能的影响  

Effect of Forging Deformation and Heat Treatment Temperature on Microstructure and Properties of Molybdenum Electrode for Glass Furnace

作　　者：岳胜伟 YUE Shengwei(Luoyang Kewei Tungsten Molybdenum Co.,Ltd.,Luoyang 471003,China;Henan Molybdenum and Molybdenum Alloy Engineering Technology Research Center,Luoyang 471003,China)

机构地区：[1]洛阳科威钨钼有限公司,洛阳471003 [2]河南省钼及钼合金工程技术研究中心,洛阳471003

出　　处：《玻璃搪瓷与眼镜》2021年第12期14-18,6,共6页Glass Enamel & Ophthalmic Optics

摘　　要：纯钼具有优异的特性,是玻璃生产领域主要的电极材料。采用光学显微镜和万能材料试验机测试了玻璃熔炉用钼电极在锻造及热处理后的显微组织和力学性能。研究结果表明,钼电极径向(截面)显微组织的加工形态随着变形量的增加而趋于明显,当变形量为70%时最为明显,其后则出现组织粗化现象;随着热处理温度的升高抗拉强度逐渐降低,在温度低于1150℃时降幅较慢,随后降幅加快,而断后伸长率则呈现先升高再降低的趋势,在950℃时达到峰值。Pure molybdenum has become the main electrode material in the field of glass production.The microstructure and mechanical properties of forged and heat treated molybdenum electrode used for glass furnace were observed by optical microscope and measured by universal testing machine.The results show that with the increase of forging deformation,the processing morphology of the radial(cross-section)microstructure of molybdenum electrode for glass furnace tends to be obvious.The processing morphology is the best at 70%of the forging deformation,and the crystals will be getting causer and the processing morphology is getting worse when the forging deformation is further increasing due to the reheating during forging.After heat treatment,the tensile strength decreases gradually with the increase of heat treatment temperature,decrease is slow before 1150℃,and then the decrease is accelerated.Nevertheless,the elongation after fracture increases first and then decreases.It reaches the peak value at 950℃.

关 键 词：玻璃熔炉用钼电极 显微组织 力学性能 锻造变形量 热处理 

分 类 号：TQ171.776[化学工程—玻璃工业]