A series of welding process testing showed that using recessed tube-tube sheet, high Cr-Ni welding materials and automatic TIG welding technology could improve the welding quality of tube-tube...
并通过一系列焊接工艺试验，确定采用管子内缩管板和高铬镍焊材及自动脉冲钨极氩弧焊方法，提高了管子管板的焊接质量和可靠性。
A series of high-Cr cast irons (15Cr-2Mo type) samples of 5 different carbon contents range from 2-4%, and consequently the volume contents of the M_7C_3 carbides range from 9 to 42% are prepared.
通过改变高铬铸铁中的碳含量，而保持其它组分基本不变，得到M_7C_3型碳化物含量在9～42%之间的一系列合金。
SINO-MR has developed a series of analysis models with industrial characteristics with the combination of RA and CR technologies. Meanwhile we have accumulated industry data for more than 15 years.
赛诺结合零研与专项两大调研系统，开发了众多具有行业特色的研究模型，并积累了长达15年的历史数据。
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