...盖;蠕化率;检测技术 [gap=494]Keywords: ultrasonic velocity method; diesel engine; cylinder head; vermicular graphite rate; technology of check and measure ..
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结果表明，喂丝法生产蠕墨铸铁，蠕化情况良好，蠕化率稳定。
The result showed that excellent and stable vermicularizing effect could be obtained by using cored-wire injectio…
本文应用微分热分析液淬法研究了不同蠕化率蠕铁的一次结晶过程。
Using differentiated thermal analysis quenching method, the solidification process of CG cast iron with various percentage of compacted graphite particles is investigated.
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