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zhushiyue

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[求助] 求大神帮忙翻译下,谢谢,(材料化学类)……(附图)

Model calculation shows that the
compressive stresses developed in the
damage zone (60-80 N/mm2) are comparable
with the brick material uni-axial
compressive strength (70-100 N/mm2).
Therefore, the snorkel lining performance in
the early stage of the campaign could be
sensitive to the variation in construction (e.g.
joint tightness in the snorkel ring, variation
of material properties) and preheating. In
fact, post mortem examination confirmed
that the used snorkel bricks often contained
thermal cracks parallel to hot face.
A high preheat temperature (i.e.
>500°C) would reduce the contact stresses
of the snorkel internal bricks. However, a
higher preheat temperature would increase
the outward expansion of the inner brick
lining and resulting in increased tensile
stresses on the outer castable and subsequent
cracking, allowing metal and slag
infiltration. Calculation indicates that the
tensile stresses generated on the outer
castable are generally higher than the tensile
strength of the castable materials, resulting
in thermal cracks in the outer castable during
preheating (see Fig.7).
求大神帮忙翻译下,谢谢,(材料化学类)……(附图)
3.jpg
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zhushiyue: 金币+13, 翻译EPI+1, ★★★★★最佳答案, 非常感谢 2014-09-22 10:50:21
模型计算表明,在损伤区产生的压缩应力(60-80牛顿/平方毫米)和砖材料单轴压缩强度(70-100牛顿/平方毫米)相当。因此,连通管内衬的性能在活动初期可能与构造的变化(例如连通管环接合处的松紧带、材料特性的变化)和预热敏感。事实上,事后检测结果证实,连通管所使用的砖常包含平行于热面的热裂缝。高预热温度(即>500℃)会降低通气管内部砖的接触应力。然而,较高的预热温度会增加内部衬砖向外膨胀并导致外浇注料拉伸应力增加和随后的裂缝,从而使金属和炉渣渗透。计算表明,在外侧浇注料所产生的拉伸应力通常比浇注料的拉伸强度更高,从而导致在预热时出现所述外浇注料的热裂纹(见图7)。
2楼2014-09-22 10:42:01
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