共查询到20条相似文献,搜索用时 93 毫秒
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本文针对化验钢水惰性气体瓶在实验室使用过程中容易发生倾倒的问题,设计并应用了一种固定式直读光谱仪化验钢水惰性气体瓶防倾倒支架。该支架采用固定式设计,能够牢固地将钢水惰性气体瓶固定在实验台上,有效防止其发生倾倒,从而提高实验室操作的安全性和稳定性,同时该支架可有效防止钢水惰性气体瓶因外力或操作失误而倾倒,大大减少了实验室事故的发生概率,保障了实验人员的安全。在实际应用中,该支架还能够提高实验的准确性和可重复性,为化验钢水惰性气体瓶的分析提供了有力的支持。 相似文献
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阐述了向熔渣内鼓入惰性气体形成泡沫渣层降低渣含铅铜的依据,并进行了对炉渣鼓入惰性气体的贫化试验。结果表明,只要适当选择惰性气体的流速的控制吹气持续时间,就可大幅度降低渣的含铜量。 相似文献
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1.前言利用喷吹惰性气体搅拌钢液进行精炼的原理,早在四十年代就已被人们所认识,但由于需要喷吹大量惰性气体才能达到精炼的目的,所以直到五十年代,随着制氧技术的 相似文献
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《有色金属(冶炼部分)》1988,(4)
<正> 加拿大滑铁卢大学研究成功用硅热法回收金属镁的新工艺。将氧化镁、氧化钙和硅置于特殊装置中,在1000℃以上的温度下和预热的惰性气体中进行反应。预热的惰性气体一面提供反应所需热量, 相似文献
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介绍了还原性气体阳极相对于炭阳极和惰性阳极的优势,系统梳理了气体阳极用于金属电解的发展过程。结合近年该技术的研究进展,介绍了气体阳极能用于铝电解需要解决的三个关键技术问题,即多孔电极的制备及性能、氟化氢等有害副产物的抑制和气体阳极反应持续性及效率问题,并提出了可能的解决方案。 相似文献
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针对焦炉煤气压缩机在运行过程中存在的问题,分析查找原因并对其采取改进措施,提高了焦炉煤气压缩机排放量,减少了焦炉煤气外漏安全隐患。 相似文献
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完善和优化煤气系统的配套设施,加大系统的调节功能,建立能源管理目标和信息沟通平台,提高煤气综合利用率,实现煤气零放散是可行的。 相似文献
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Her-Yueh Huang 《Metallurgical and Materials Transactions A》2010,41(11):2829-2835
Using activating flux for gas tungsten arc welding (GTAW) to improve penetration capability is a well-established technique.
Argon is an inert gas and the one most widely used as a shielding gas for GTAW. For the most austenitic stainless steels,
pure argon does not provide adequate weld penetration. Argon–hydrogen mixtures give a more even heat input to the workpiece,
increasing the arc voltage, which tends to increase the volume of molten material in the weld pool as well as the weld depth-to-width
ratio. Great interest has been shown in the interaction between activating flux and the hydrogen concentration in an argon-based
shielding gas. In this study, the weld morphology, the arc profile, the retained delta ferrite content, the angular distortion,
and the microstructures were examined. The application of an activating flux combining argon and hydrogen for GTAW is important
in the industry. The results of this study are presented here. 相似文献
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The paper presents the application of an improved procedure for oxide speciation in steels by temperature ramped inert gas fusion technique on commercially available instruments. Main steps of analysis, data processing and interpretation of the results are described. The effects of instrumentation and auxiliary materials on the evolution kinetics of oxygen during an analysis are emphasised. The procedure is applied to determine the content of alumina and spinel species in high‐carbon steels, attested as reference materials. The results of the gas fusion technique are correlated to those of the chemical analysis and scanning electron microscopy equipped with energy dispersive X‐ray detector. 相似文献
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工业上用理想气体方程对气体进行定量分析,通过调节气体的温度压力来控制物料的配比.本文介绍了该方法在多晶硅生产中,SiHCl\-3液体与H2的配比上应用. 相似文献