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The development of ndfeb magnet _ ndfeb strong magnet manufacturers

by:Newland     2020-04-02
1, product development: the development of ndfeb magnet ndfeb since its invention in 1983 the first ten years of development, after nearly a decade development soon, China in 96, 360 tons, the output 2000 tons, the output 1000 tons, but by 2006 China's production of 60000 tons, the output 2000 tons, few other countries, the world's production of ndfeb sintered and glued together with 100000 tons ( Which bond 20000 tons) 。 2, the enterprise: 1998 years ago in the western world is faster than China's development, China's development is slow. But so far, the only four companies with only a also, the only carrier in the United States, Europe, and China has more than one hundred, so China is the world's ndfeb production country, but not power. 60% of China's summary of the output in zhejiang, the other in shanxi and Beijing and tianjin area, summary of sales base in shenzhen, ningbo and Beijing. 3, the development of performance: the development of ndfeb performance is dependent on the technology of the perfect and the use of advanced equipment developed rapidly. The best performance in China 96 years ago as N38, the world's best N48, by 2006 China best for N52 world is best for N52 ( Mass production) , performance improvement soon, China's performance ndfeb improve faster, China has gradually transferred from producers to produce power. 4, process of development: the earliest ndfeb process is wet, using toluene or gasoline as protectant, ball mill production, performance is low, later developed into the dry process production ( Jet mill) To improve the performance, but the best performance is N45, are but since the invention of the sling with ( SC) Process performance has been greatly improved, the mass can achieve N52 do. 5, equipment development: the ball mill to jet mill, broken ingot casting slice to hydrogen, unitary sintering furnace of continuous sintering furnace, simply press the automatic press, equipment development technology breakthrough is the key to improve the performance of ndfeb cost reduction. Early June, after the development of processing technology: summary of subsequent processing is monotonous and waste is big, the main processing craft slice, line cutting, punching, centerless grinding, vertical mill, etc. , with the rapid development of ndfeb using field expands unceasingly, the processing technology and equipment also changed a lot, sets of holes ( Improve the comprehensive utilization of the material) , set of tile, ground tile, new processing technology is widely used, such as the double side grinding for ndfeb to reduce costs, improve the accuracy.
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