resurfacing of rail
... 我不知道铁路工程施工隧道内线路 line in tunnel 钢轨焊补 rail repairing welding 沙漠路基 desert subgrade ...
基于40个网页-相关网页
... 钢轨滚轨机 railroad roller 钢轨焊补 resurfacing of rail 钢轨焊接用铝热剂 rail thermit ...
基于22个网页-相关网页
·2,447,543篇论文数据,部分数据来源于NoteExpress
研究结果表明:在不预热条件下,用KD286焊补钢轨,焊缝组织为柱状奥氏体组织,熔合区和过热区不可避免地产生脆硬的马氏体组织。
The results show that:under the no preheating condition, the microstructure of weld metal is columnar austenitic, and brittle martensite exists in the fusion zone and over-heated zone unavoidably.
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