The reporter saw at the production workshop of Zhejiang Sun Co., Ltd. that the crankshaft driven grinding machine manufactured by this technology and the international advanced similar grinding machine simultaneously processed the same type of crankshaft. The appraisal experts separately extract the processed parts and use the internationally recognized authoritative testing equipment for comparative testing. The results show that the key index of the machine tool parts - the roundness error of the connecting rod neck is only 0.0028 mm, which is not only significantly better than the error value of 0.0042 mm of the comparative processing parts, but also exceeds the international advanced grinding machine. 0.003 mm accuracy standard requirements.
Professor Lei Yuanzhong, an ultra-precision processing expert and honorary director of the China Mechanical Engineering Society, said that at present, only a few countries in the world control related core technologies. Through the breakthrough of originality, China has mastered the core technology of this ultra-precision processing equipment, which has great practical significance for promoting the development of the machine tool industry and improving the overall level of manufacturing. Wang Rongqing, chairman of Zhejiang Sun Co., Ltd., said that the machine has the characteristics of high precision, long life and low cost, and the price is less than half of that of similar imported machine tools. It is cost-effective and can be widely used in the upgrading of traditional grinding machines.
The reporter learned that the research was included in the National High-Tech Research and Development Program ("863" Program) by the Ministry of Science and Technology in 2008, and was successfully completed by Pan Xuhua, a special professor of Zhejiang Normal University, and his team. The technical results can be widely applied to the processing and manufacturing of various mechanical power and transmission systems.
Abrasive flap discs, commonly known as flat emery cloth wheels, flap discs, flower impellers or elastic discs, are a large variety of coated abrasive conversion products. It is a method of pressing the cut coated abrasive discs one by one. It is formed by sticking adhesive to the back cover plate along the circumference.
The Flap Disc is mainly installed on hand-held Power Tools for grinding and polishing the welds, burrs, chamfers, surface derusting, surface polishing, etc. of various metal and non-metal parts. Compared with the resin grinding wheel for fixed abrasives, it has Grinding and polishing can be completed at one time, shortening the operation time, saving the cost of grinding, and improving the grinding efficiency. The abrasive self-sharpness is strong and the utilization rate is high. The air cooling does not damage the surface. The surface quality is easy to control and cost-effective, reducing operator fatigue and increasing machine life. And so on, so it is widely used in various industries or fields of manufacturing.
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Abrasive flap disc can be divided into flap disc, Mini Flap Disc and Flexible Flap Disc according to their shape. There are subtle differences in usage. The flap disc are relatively hard and not easy to bend; the blades of flexible flap disc can be bent at will. Shape, suitable for grinding the edges and corners of the workpiece; mini flap disc is suitable for grinding smaller workpieces. The following is a detailed introduction of the flap disc.
According to the different abrasives, it can be divided into Zirconia Flap Disc,S/C Flap Disc, Ceramic Flap Disc.
1.Zirconia Flap Disc
Mainly used for high alloy, stainless steel and heat-treated steel; high-tensile, non ferrous metals.
2.S/C Flap Disc
Mainly used for marble, stone, glass, and non-ferrous metals.
3.Ceramic Flap Disc
Mainly used for grinding stainless steel, titanium, inconel, and other hard metals.
At present, flap discs are widely used in automobiles, stainless steel products, metal products, glass manufacturing and other industries, and have special effects on welds, solder joints, flash, rust removal and surface polishing. The reason why the flap disc is so widely used is because it has five advantages that cannot be ignored:
1. The flap disc blades have high hardness, high strength and strong grinding ability during use.
2. The flap disc has low noise, low vibration and long service life during use.
3. The flap disc has strong wear resistance and long service life.
4. It is not easy to generate heat and burn parts during use.
5. The use of flap disc can improve work efficiency.
The flap disc blades can be used instead of resin Grinding Wheels and steel wire wheels. They have a good effect on rust removal, grinding and polishing. It is a good way to polish and remove rust. It is worth choosing!
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Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jiadingabrasive.com