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带磁性的物质,一般都认为是钢铁一类的固体物质。随着磁化学研究的发展,专家们认为磁性物体也可以是液体物质。这种磁性液体的一个显著特点,是它的性能可以用磁场来控制,就是通过磁化来控制。他们研究出铁、钴的各种胶状溶液,并把它们的氧化物溶解在水、汽油、煤油及其它液体中,磁性粒子很微小,只有千分之几微米大。这种磁性液体已经在有些国家的纺织印染部门大量推广,可以获得极大的经济效益。使用磁性液体作为润滑油,可以大量节约油脂,增强机器磨擦部位的可靠性,延长机器的寿命。使用磁性农药
Magnetic material, generally considered a class of solid steel. With the development of magneto-chemical research, experts believe that magnetic objects can also be liquid substances. A notable feature of this magnetic fluid is that its properties can be controlled by a magnetic field, which is controlled by magnetization. They studied various colloidal solutions of iron and cobalt and dissolved their oxides in water, gasoline, kerosene, and other liquids. Magnetic particles were tiny and only a few tenths of a millimeter. This kind of magnetic fluid has been widely promoted in some countries’ textile printing and dyeing departments, which can obtain great economic benefits. The use of magnetic fluid as a lubricating oil, can save a lot of oil, enhance the reliability of the machine friction parts, extend the life of the machine. Use magnetic pesticides