所谓产品(或零部件)清洁度,即以整台产品(或零件部)上清理下来的脏物重量多少,来衡量该台产品(或零部件)清洁的程度。例如从一台工业锅炉的所有重要零部件上(如汽包、集箱、链条炉排、加煤机轴与轴承、胀接管接头、受压元件焊接坡口等),清理出来的脏物(焊条头、电焊飞溅、熔渣、气割残渣、铁屑、棉纱、铁块、油污、砂子、尘土等)总重量的多少,来衡量该台锅炉清洁的程度。如果从锅炉的某个零部件上,如管板(主 The so-called product (or component) cleanliness, which measures the level of cleanliness of a product (or part) by how much of the dirt is being removed from the entire product (or part). For example, from all the important components of an industrial boiler (such as drums, header, chain grate, stoker and bearings, expansion joints, pressure components welding groove, etc.), clean up the dirt The head of the welding rod, welding spatter, slag, gas cutting residue, iron filings, cotton yarn, iron, oil, sand, dust, etc.) to measure the extent of the boiler cleanliness. If the boiler from a certain component, such as the tube plate (master