The surface and cross-section of the pock flaws which appeared on the hot-dip galvanized coating were observed and analyzed by using SEM and energy spectroscopy.
通过扫描电子显微镜对热镀锌钢板镀层表面麻点缺陷的表面和断面形貌进行了观察，并对其进行了能谱分析。
Therefore, selecting the water temperature properly the hot water processing of big cross section machine parts of 45 steel can replace modified treatment.
这样，适当选择水温，45钢制较大截面工件的热水处理可代调质处理。
The hot pot die casting technology of large cross section aluminum bar are introduced.
简要介绍大截面铝母线的热顶铸造技术。
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