用能谱、X射线衍射、X射线荧光光谱和金相等分析手段，研究了九连墩楚墓出土的战国青铜文物的铅锡焊料的基体和锈蚀产物、发现产物致密、均匀，主要由PbCO3、Pb和SnO2组成，整个埋藏环境相对密闭，总体呈中性，HCO3-浓度较高。这些因素共同作用，减缓了铅锡焊料的腐蚀，使用大部分青铜器完好地保存了下来。
The alloys and corrosion products of the Pb - Sn alloy solders, existing in bronxes excavated from Jiuliandu site during Warring States Period, were analyzed by using techniques of energy spectrum, X- ray powder diffraction, X - ray fluorescence spectrometry and metallurgical analysis , etc. The analysis indicated that corrosive products that were composed of PbCO3, Pb and SnO2 were compact and firm, and the buried circumstance, with the neutral pH and the high content of HCO3-,was relatively isolated, which had cooperated to hinder the corrosion of Pb - Sn solders to keep bronzes in good figure.
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