The use of surface nanocomposite technology to prepare a new wear-resistant anti-friction composite coating sewing machine technology has been successfully developed. This technology can provide key oil-free lubrication materials for domestic high-speed sewing machines, and provide technical support for comprehensively improving the overall technical level of industrial sewing machines in China.
The research team of Shanghai Nanotechnology and Industrial Development Promotion Center obtained Ni-P-PTFE, Ni-P/Al2O3, Ni-P/SiC, Ni-P/PTFE-SiC and Ni-P/Gr through research on sewing machine technology. - Composite coating such as SiC. The properties and microstructure of the surface of the sewing machine before and after the heat treatment of the nanocomposite coating were studied. The results show that the hardness and wear resistance of the surface of the sewing machine are significantly improved compared with the Ni-P coating, especially after the heat treatment, the Ni-P/SiC composite coating. The hardness can reach HV1206, and the wear resistance is obviously improved. In addition, the introduction of nanoparticles such as Al2O3 causes the crystallization temperature of Ni-P/Al2O3 composite coating to decrease significantly. Experiments were carried out on the prototype rig, which proved that the composite coating prepared by the above method can improve the wear-resisting friction-reducing performance and service life of the sewing machine parts, and has the characteristics of low noise and low energy consumption. Some research results have shown that China's sewing machine technology has been upgraded to a higher level. After testing by user units, the performance of self-lubricating coating materials has reached the requirements of similar foreign products.
This project uses the synergistic composite technology of self-lubricating particles and ceramic particles to maximize the wear-resisting and anti-friction performance of sewing machinery parts. Compared with traditional physical metallurgy methods, this sewing machine technology has low preparation temperature and nanoparticles. The plating solution is easy to disperse, and the required equipment is simple, the operation is simple, and the production cost is greatly reduced. The implementation and commissioning of the project can solve the friction and wear problems of key components of sewing machine equipment, especially for the development of oil-free lubrication sewing machine equipment, providing key oil-free lubrication technology, achieving the leap of domestic sewing machine technology and equipment, and improving The overall technical level of sewing machine equipment in China has enhanced the ability of export competition. In addition, the promotion and application of this technology is expected to be applied in other industries such as machinery, aerospace, and mold.
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