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钕铁硼磁铁常见问题解答

钕铁硼- 人类已知的最强大的“稀土”的永久磁铁组成—-这个提法是比较现代的,并于1984年首次成为市售。钕铁硼磁铁有最高的B溴,碘和任何磁铁配方的BHmax,也有非常高的HC(定义见下文)。然而,他们是很脆,很难加工,敏感的腐蚀和高温。有用于家中,车间,皮卡,实验室,风力涡轮机,飞船等。我们进行新的和剩余库存,在许多大小和几乎所有磁铁应用钕铁硼是因为它令人难以置信的强度和矫顽力,是在一个合理的价格最好的选择!在发电的应用,可以预见钕铁硼磁体,给陶瓷磁铁的输出功率的4-5倍。   如果在户外使用磁铁会腐蚀吗? 钕铁硼磁铁很容易受到腐蚀。名称中的’铁’铁,和它生锈!我们的许多磁铁,镍,锌,黄金或环氧涂料,防潮保护它们。如果涂层被损坏(经常盈余磁铁的情况下),磁铁会生锈,如果接触到水或湿度。如果这是您的关心,你可以轻松地添加了另一个保护层,浸渍环氧树脂或塑料涂层的磁铁。   我已经知道了关于钕铁硼磁铁的专利问题,是否申请磁铁许可? 钕铁硼磁铁是一个相对较新的发明- 在1984年他们首次成为市售。通用汽车公司持有的专利,一些硬盘驱动器制造商确实比使用无牌钕铁硼磁体起诉。从那时起,该专利已出售给住友商事,谁是容易的许可证提供给世界各地的磁铁制造商。所有钕铁硼磁体目前正在根据国际专利保护。我们所有的磁铁,无论是新的,法律的,许可资料,或来自不同行业的盈余。   磁铁是如何制造的?我可以让他们在家里吗? 制造业:钕铁硼磁铁是复杂的制造。粉状的钕铁硼材料包装,模具,然后烧结。非磁化的“磁铁”,然后形成正确的尺寸和镀。磁化,它们被放置在一个非常昂贵的机器,产生瞬间的磁场极高的供电,使用高电压电容放电和线圈。成品磁铁的极性取决于它是如何在面向磁化机,以及如何在烧结混合颗粒面向。这样就使得国内制造不可能。然而,让您可以在家里简单的钢磁铁。采取钉子和中风与一个强大的钕铁硼磁体20或30倍,它总是在指甲上只有一个方向移动的磁铁。普雷斯托,指甲会被磁化,市占非常弱。   我可以切割,钻或机自己的大小和形状的磁铁? 是的,可以。铝镍钴磁铁机是很容易在你希望的任何方式。钕铁硼磁铁是非常硬而脆的性质。虽然他们可以切割,钻孔和加工,它应该只可以做陶瓷经历的人。如果磁体获得了约300华氏度,他们将永久失去磁性。他们都是易燃的,它

Magnetic materials

The term magnet is typically reserved for objects that produce their own persistent magnetic field even in the absence of an applied magnetic field. Only certain classes of materials can do this. Most materials, however, produce a magnetic field in response to an applied magnetic field – a phenomenon known as magnetism. There are...

Magnetization

The magnetization of a magnetized material is the local value of its magnetic moment per unit volume, usually denoted M, with units A/m. It is a vector field, rather than just a vector (like the magnetic moment), because different areas in a magnet can be magnetized with different directions and strengths (for example, because...

Magnetic moment

A magnet’s magnetic moment (also called magnetic dipole moment and usually denoted μ) is a vector that characterizes the magnet’s overall magnetic properties. For a bar magnet, the direction of the magnetic moment points from the magnet’s south pole to its north pole, and the magnitude relates to how strong and how far apart...

Magnetic field

The magnetic flux density (also called magnetic B field or just magnetic field, usually denoted B) is a vector field. The magnetic B field vector at a given point in space is specified by two properties: Its direction, which is along the orientation of a compass needle. Its magnitude (also called strength), which is...

learn about Magnet

A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets. A permanent magnet is an object made from a...