Abstract: This paper discusses misconceptions that arise during the maintenance of card clothing for high-yield carding machines. Owing to a lack of in-depth research on material changes in high-yield carding machines and the design principles of card clothing, the maintenance process tends to overlook critical factors such as the thermal expansion coefficient of materials, the technological advancement principles of basic components, and the stress compensation of fundamental parts. The reliance on traditional repair methods, such as straightening, leveling, and wire grinding, leads to improper maintenance outcomes, which in turn result in problems such as card clothing failure and premature scrapping. To address these misconceptions, this study adopts new equipment and technologies guided by the principles of machine mechanics and the fundamental patterns of material thermal deformation and implements targeted complementary measures. These efforts eliminate the misconceptions and ensure the efficiency and precision of card clothing maintenance .

Key words: carding machine; card clothing; maintenance; straightening; flatness; roundness