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以马钢检测中心X-荧光自动化系统为研究对象,介绍了钢铁及原料分析检验实现自动化的发展趋势,陈述了含铁原料、铁样、高炉渣及钢渣等试样的分析流程,阐述了分析检验实现自动化的基本内容,探讨了分析检验技术的发展应用方向。 相似文献
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针对进口全自动材料试验机部分备件更换周期短,且海外直购时间长的问题,结合日常工作中对试验机的故障维修案例,重点探讨了各型号、各阶段购入的进口全自动材料试验机备件国产化的可行性,找到替代进口备件的合理方案。该工作可为提高实验室设备的管理效率提供保障。 相似文献
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分别在不同牌号H型钢的腹板和翼缘取样,按照标准制备成1A及1B试样进行拉伸试验,研究了H型钢不同部位、不同尺寸试样对拉伸试验结果的影响。结果表明:H型钢腹板试样的强度比翼缘试样的高,拉伸试样应尽量在翼缘部位取样。 相似文献
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以马钢检测中心X-荧光自动化系统为研究对象,陈述了含铁原料、铁样、高炉渣及钢渣等试样,从铁前原料到钢渣检验的分析流程。结合生产现状分析了各类自动化系统布局及流程的合理性及拓展性,阐述荧光自动化系统在检验中的功能改造和发展方向,为自动化检验科学布局指明了方向、提供了指导。 相似文献
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Mesoporous Ce0.5Zr0.5O2 mixed oxide with high specific surface area was synthesized under basic condition in the presence of non-ionic surfactant PEG-4000. The effect of synthesis conditions, such as synthesis temperature and the molar ratio of PEG-4000/([ Ce] + [ Zr] ), on specific surface area were investigated. The products were characterized by transmission electron microscopy, powder X-ray diffraction, and nitrogen adsorption-desorption measurements, respectively. The results showed that synthesis temperature and the molar ratio of PEG-4000/([ Ce] + [ Zr] ) had great influence on specific surface area. Under the optimum synthesis conditions, the prepared Ce0.5Zr0.5O2 mixed oxide presented cubic fluorite-type structure and possessed high surface area of 148.6 m2·g^-1 with wormlike pores. 相似文献
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碳素钢和中低合金钢日常生产中需要检测多达10余种元素,往往不同牌号钢种中各元素含量范围相差较大,目前各大钢铁公司在线检测主要采用火花放电原子发射光谱法,利用人工对检测设备进行校正,一方面受生产计划及人员技能水平制约,另一方面校正耗时较长,不能满足高效、准确的现代化冶炼技术要求。实验通过优化标准化样品,采用原始校准曲线法替代类型标准化,利用自动校正程序校正火花放电原子发射光谱仪标准曲线。经过生产检验验证,校准曲线按照预先设定周期自动校正后判定结果,不受检验人员技能影响,且各钢种均采用持久曲线法,不需要对不同钢种进行区分,不受生产计划制约。6台火花放电原子发射光谱仪校正时间由原来的6 h减少到1.5 h。经过生产检验验证方法满足GB/T 4336—2016精密度及正确度验证要求,能够应用在钢铁行业在线自动检测过程中。 相似文献
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Synthesis of mesoporous cerium-zirconium mixed oxides by hydrothermal templating method 总被引:1,自引:0,他引:1
Mesoporous cerium-zirconium mixed oxides were prepared by hydrothermal method using cetyl trimethyl ammonium bromide (CTAB) as template. The effects of amount of template, pH value of solution and hydrothermal temperature on mesostructure of samples were systematically investigated. The final products were characterized by XRD, TEM, FT-IR, and BET. The results indicate that all the cerium-zirconium mixed oxides present a meso-structure. At molar ratio of n(CTAB)/n((Ce)+(Zr))= 0.15, pH value of 9, and hydrothermal temperature of 120 ℃, the samples obtained possess a specific surface area of 207.9 m^2/g with pore diameter of 3.70 nm and pore volume of 0.19 cm^3/g. 相似文献