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总结分析近年来进口二手挖掘机概况,并以进口二手挖掘机为研究对象,抽样测试部分20t级和12t级进口二手挖掘机的液压缸速度、油液质量、排放、噪声、液压性能等指标,通过这些指标对抽样进口二手挖掘机整机质量做出判断。建立针对进口二手挖掘机的质量评价体系,利用该评价体系,可以对进口二手挖掘机进行有效检验,保证进口二手挖掘机的整体质量。
Summarized and analyzed the general situation of imported second-hand excavators in recent years, taking the imported second-hand excavators as the research object, sampling and testing some indicators such as cylinder speed, oil quality, discharge, noise and hydraulic performance of 20t and 12t imported used excavators, Through these indicators to determine the quality of imported second-hand excavators to make judgments. The establishment of quality evaluation system for imported second-hand excavators, the use of the evaluation system, the imported second-hand excavators can be effectively tested to ensure the overall quality of imported second-hand excavators.