国内外表面钝化止血钳质量对比分析

Comparing Analysis on the Quality of Surface Passivated Hemostatic Forceps at Home and Abroad

对国内外同一类表面钝化止血钳进行了化学成分、硬度、金相组织和钝化膜点蚀电位等分析。结果表明,虽然两者材料的化学成分基本一致,但其冶金质量、锻造及热处理工艺有明显的差距,最终造成了两者产品性能间的差异,并提出了提高国内无光钝化止血钳产品质量的一些建议。

Some comparing analysis on the surface passivated hemostatic forceps domestic and foreign made were carried out through chemical composition analysis, hardness test, microstructure observation and pitting corrosion potential test. The results show that the chemical composition of them are almost in the same, but the metallurgy quality, forging process and heat treatment process have some distinction which result in the properties difference between both products. Some suggestions for improving the domestic finished products were put forward.