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Nanomaterials successfully used in sewing machines
The development of a new wear-resistant and anti-friction composite coating using surface nanocomposite technology has successfully been achieved. This innovative sewing machine technology provides essential oil-free lubrication materials for high-speed domestic sewing machines, offering crucial technical support to elevate the overall performance of industrial sewing equipment in China.
Researchers from the Shanghai Nanotechnology and Industrial Development Promotion Center conducted extensive studies on sewing machine technology, resulting in the creation of several nanocomposite coatings, including Ni-P-PTFE, Ni-P/Al₂O₃, Ni-P/SiC, Ni-P/PTFE-SiC, and Ni-P/Gr SiC. They analyzed the properties and microstructure of the sewing machine surfaces before and after heat treatment. The findings revealed that the hardness and wear resistance of the coated surfaces were significantly improved compared to conventional Ni-P coatings. Notably, after heat treatment, the Ni-P/SiC composite coating achieved a hardness of HV1206, with a marked improvement in wear resistance.
Moreover, the incorporation of nanoparticles like Al₂O₃ lowered the crystallization temperature of the Ni-P/Al₂O₃ composite coating. Prototype testing confirmed that these composite coatings enhance the friction-reducing and wear-resistant properties of sewing machine parts, leading to longer service life, reduced noise, and lower energy consumption. Some results have demonstrated that China’s sewing machine technology has advanced to a higher level. After user testing, the self-lubricating coating materials met the standards of similar foreign products.
This project leverages the synergistic effect of self-lubricating and ceramic particles to maximize the wear and friction resistance of sewing machine components. Compared to traditional methods, this technology operates at lower temperatures, uses easily dispersible nanoparticle plating solutions, requires simpler equipment, and is easier to operate, significantly reducing production costs. Implementing this technology can address friction and wear issues in critical sewing machine components, especially in the development of oil-free lubrication systems. It marks a significant leap forward for domestic sewing machine technology, enhancing the overall technical level and boosting export competitiveness.
Additionally, the potential application of this technology extends beyond sewing machines, with promising prospects in industries such as machinery, aerospace, and mold manufacturing.