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The effects of sintering temperature on the magnet magnetic

by:Maghard      2020-10-07
The influence of sintering temperature on the magnet magnetic experiment Y30H 1 pre under-burnt clinker was investigated respectively in the coarse powder to join optimization additives of nanometer and micron CaCO three cases, the SiO and not join additive remanence ferrite and coercive force with the change of sintering temperature with the increase of sintering temperature, three cases of remanence ferrite are showing a downward trend after rising first. For magnet does not add any additives, sintering temperature rise every 5 CLC, remanence increases by about 5 mT, when the sintering temperature of the sample of 1 255 oC, magnet remanence appeared maximum value, which is 405 mT. Since then, with the increase of temperature, residual magnetism began to decline. After optimization with micron grade CaCO and the SiO: magnets at 1 240 ℃ maximum residual magnetism, sintering appear when is 405 mT. 7 mT. 3 kA/m, with the increase of temperature, coercive force increases after the first drop, this is due to the low temperature ( 1185℃) Sintering, the magnet inside haven't achieve full reaction, magnet internal density is low, magnetocrystalline anisotropy can be smaller; When the temperature reached 1200 ℃, the coercive force downward trend obviously increases, temperature rise every 5 ℃, coercive force will reduce 5 kA/m or so. After optimization in micron grade CaCO and the SiO, magnet coercive force did not produce obvious change; 3 kA/m. As early as 200 years ago, people have realized that the magnet, the potential of magnetic liquid, and attempt to produce a stable ferromagnetic suspension, but it was not until the early 1960 s by NASA ( NSNA) Solve, NSNA will be a kind of liquid and the stability of surfactant ball grinding method for making a kind of colloid, with this kind of magnetic colloidal mix with fuel, controlled through permanent magnet, overcome the weightlessness fuel does not work. In 1960 the United States and they made the sealing material of the suit of magnetic liquid to be successful. In terms of magnetic liquid, it is a completely in order to meet the actual needs, in particular the needs of the aerospace industry and development of products, and gradually extended to the military and civilian fields. Is not only the United States, the Soviet union, Britain, Japan, France, Germany and other developed countries attach great importance to, and many famous big companies also invest a lot of manpower material resources for research. Development and production of magnetic fluid, and apply it to the aerospace, electronics, remote sensing, remote control, machinery, energy, chemical industry, metallurgy, instrumentation, environmental protection, printing, medical, health, and many other aspects, and become the reliable material to solve the problem of complex process. Currently abroad has the powerful magnet magnetic fluid is widely used in vacuum devices and magnetic fluid, plasma chemical processing equipment, laser system, damping system, mineral processing equipment, etc. It is estimated that Japan 2000 output value of the magnetic liquid has nearly 20 billion yen. Magnet company is the specialized production ( Ndfeb) Powerful magnet company, has factories in dongguan city based wangniudun pier town. Magnet products used in toys, jewelry, crafts gifts, handmade gift box, leather handbags invisible magnetic button, plastic hardware products, audio equipment and other industries. Our company is located in dongguan city based wangniudun block cao beijiao town five chung village industrial zone, the company can provide customers 24 hours delivery, 36 hours to the customers specifications template. Magnet experts will find magnet products co. , LTD. , dongguan city, pack your satisfaction, more information you can view our company website/magnet. This article rigorous reproduced, if there are any violation, the consequence is proud! Magnet products co. , LTD. , dongguan city site does not arrange the position, everything is equal to zero technical support: all network company address: China guangdong dongguan dongguan city based wangniudun town pier five chung industrial zone telephone: 0769 - 81313183 guangdong ICP for 16113157 magnets, magnet, profiled magnets, magnet factory, dongguan magnet products co. , LTD
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