盾构机的刀具产品多长时间需要更换一次？宏润建设回应

Core Viewpoint - The company Hongrun Construction (002062) provided insights on the replacement frequency of tungsten carbide tools used in shield tunneling, indicating that these tools are generally not replaced during the construction process but are assessed for wear after project completion [1] Group 1: Tool Usage and Replacement - Tungsten carbide tools are primarily used for soft soil shield tunneling or as scraping tools in hard rock shield tunneling [1] - During construction, the term "changing tools" typically refers to the replacement of rolling cutters, which have a higher replacement frequency in harder rock conditions [1] - Rolling cutters are generally not made of tungsten carbide, with only a small number of toothed rolling cutters possibly incorporating a limited amount of tungsten carbide [1]