The result indicates that the influence of spalling is unremarkable on collapse resistance of the whole structure when fire area is small. 结果表明,当受火区域面积不大时,混凝土剥落对整体结构体系的抗连续倒塌能力影响有限。
Tempering treatment resulted in formation of tempered martensite and the spalling resistance under repeated strong impact abrasion working conditions was largely improved. 在反复强力冲击工况条件下,回火得到回火马氏体,抗冲击剥落能力大为增加。
The research of improving the spalling resistance of the high strength concrete in the condition of high temperature; 本文研究了含湿量和纤维对高性能混凝土高温爆裂和高温后残余力学性能的影响。
Research and analysis on spalling mechanism of concrete heat resistance in a limekiln 某石灰窑耐热混凝土胀裂机理研究分析
Performance of cold mill work rolls is dependent to a great extent on spalling resistance, so that both of roll manufacturers and users show great interest in this failure mode. 冷轧工作辊的性能取决于辊子抗剥落的范围,所以制造商和用户都非常关注这种失效方式。
Chemistry Design of Spalling-Resistant Wheel Steels and the Effect of Si Addition on Spalling Resistance 抗剥离车轮钢的合金设计及Si元素对抗剥离性能的影响
It showed that the most important problems existing in low carbon magnesia-carbon bricks were the improving of spalling resistance, restraining the oxidation of carbon and enhancing the corrosion resistance by slags. 指出了低碳镁炭砖亟待解决的问题是提高其抗热剥落性,抑制碳的氧化,提高材料的抗渣侵蚀性。
Hybrid fiber has significant improvement on spalling resistance of concrete, and the active mechanism of hybrid fiber improv ement on high performance concrete is also analyzed. 另外,复合纤维对改善混凝土的抗爆裂性能特别有效,同时分析了复合纤维改善高性能混凝土高温性能的作用机理。
Besides, the gradient coating has good spalling resistance, erosion resistance to high temperature liquid iron and the effect of thermal barrier properties is remarkable. 同时,该梯度涂层具有良好的抗热震、抗热冲蚀及抗高温铁水烧蚀等性能,热障作用显著。
This paper studies the influence of Peme-ability and pore size on explosive spalling resistance and slag penetration resistance of magnesia based coatings for tundish. 研究了透气度、气孔孔径对镁质中间包涂料抗爆裂性及抗渣渗透性的影响。
Effect of Diffusion on Cyclic Oxidation and Spalling Resistance of Aluminized Steel 扩散工艺对渗铝钢循环氧化和剥落性能的影响机理研究
Measures for improving spalling resistance of high strength concrete exposed to fire 抑制高强混凝土受火爆裂的措施
Therefore, the long-term oxidation speed of aluminized steel is controlled both by the internal and external oxidation of diffusion layer and the formation of voids ( voids zone) seriously influences cyclic spalling resistance. 因此,渗铝钢的长期氧化速度同时受扩散层内氧化和外氧化的控制。空洞(空洞带)的形成对循环剥落性能也产生严重影响。
The thermal spalling resistance of the cordierite glass ceramic is governed by various factors such as cordierite content, visual porosity rate, sintering schedule and etc. 堇青石微晶玻璃抗热震性能受堇青石相含量、视孔隙率、烧成制度等多方面因素的影响,该陶瓷热震次数最多达到26次。
Effect of Voids in Diffusion Layers on Cyclic Oxidation and Spalling Resistance of Aluminized Steel 渗铝钢扩散层空洞对循环氧化和剥落性能的影响
The results showed that the forging process increased the impact toughness of the RE-WC-steel composite, decreased the bridge connection of the hard particles, diminished spalling of hard particles on the wear surface and enhanced the wear resistance of tested alloy obviously. 结果表明:锻造使RE-WC-钢基合金冲击韧性明显提高,硬质相桥接减少,摩擦表面硬质相剥落减小,合金的耐磨性明显提高;
After quenching, the boride layers are not cracking and spalling, they possess a good resistance to high stress abrasive wear. 工件淬火后渗硼层不开裂、不脱落,有优良的抗高应力磨粒磨损性能。
Study on spalling resistance performance of steel fiber shotcrete induced by conventional explosions 钢纤维喷射混凝土支护抗常规爆炸震塌能力研究
The cyclic oxidation, spalling resistance and mechanisms of hot dip aluminizing steel were studied by different diffusion treatment. 通过不同扩散工艺实验,研究了热浸渗铝钢的抗氧化和剥落性能及其机理。
The main causes for the increase of spalling resistance with cerium addition are: ( 1) the grains of scale are refined by addition of cerium, thereby improving the ability of such scales to plastic deformation and to accommodation to thermal stress; 提高耐剥落抗力主要原因是:(1)添加Ce使氧化膜晶粒变细,从而改善了塑性变形和适应热应力的能力;
The rib spalling of up-dip mining with great height is related to the up-dip angle, mining height, depth, and working resistance of support, end distance, factors such as coal friction. 通过分析得出大采高仰斜工作面片帮与仰采角度、采高、采深、支架工作阻力、端面距、煤体弱结构面等因素均有关系。
Many researches have shown that the addition of polypropylene fiber is one of the main measures to improve the spalling resistance property in HSC. 掺加聚丙烯纤维是改善高强混凝土抗爆裂性能的主要手段之一,因此,研究聚丙烯纤维对高强混凝土高温后抗压性能的影响及其抗爆裂的机理具有重要的现实意义。