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受材质、工艺影响,国内挖泥船绞刀齿使用寿命较进口绞刀齿短。根据国内外绞刀齿理化分析结果,确定ZG28和ZG30两种材料,由新研材料的金相分析和性能分析——验证了ZG28的各项性能均能达到国外绞刀齿的要求。实际工程应用中ZG28生产的绞刀齿使用寿命比原型绞刀齿的使用寿命提高了2.3～2.55倍,有利于提高绞吸挖泥船的工作效率。
Affected by the material, process, domestic cutter cutter teeth life is shorter than imported cutter cutter. According to the results of physicochemical analysis of cutter reamer at home and abroad, two kinds of materials, ZG28 and ZG30, were determined. The metallographic analysis and performance analysis of the newly developed material verified that all the properties of ZG28 can meet the requirements of foreign reamer teeth. In actual engineering application, the service life of cutter teeth produced by ZG28 is 2.3 ~ 2.55 times longer than that of prototype cutter teeth, which helps to improve the work efficiency of cutter suction dredger.