磁石の種類磁石と磁性を探る

マグネットとは？

A マグネット is something that pulls some metals. This pull is called 磁気. It’s like a magic trick, but it’s science! Magnets have a 磁場. You can’t see it. But it’s there! The 磁場 has lines. These are 磁力線.

Magnets have two ends. They are called ポール. One is the 北極. The other is the 南極. North and south like each other. They pull. North and north push away. So do south and south.

 磁石の種類

There are many kinds of magnets. These are the main ones.

• 永久磁石: These are always magnets.
• 臨時マグネット: These are magnets only sometimes.
• 電磁石: These use power to be magnets.
• フェライト磁石
• ネオジム磁石
• アルニコ・マグネット

2.1 Permanent Magnets

These magnets are always “on.” They don’t stop being magnets. There are a few main types.

Neodymium (NdFeB) Magnets

これらは 最強 magnets. We make these! They are used in many things.

• 自動車: 電気自動車 use them. They help the wheels go!
• 風力発電: 風力タービン use them. They make power from the wind. We make great magnets.
• データ保管. Hard disk drives (HDD) need magnets to work.
• ネオジム磁石 で使用されている。 磁気共鳴.
• 電話: They are in your phone.

ネオジム磁石 are the best! For very strong magnets, look at our カスタマイズされたNdFeBの磁石.

We like ネオジム a lot. We are good at making them. We even make マグネット・コーティング to make them last longer!

サマリウムコバルト（SmCo）磁石

これらは 強い. They can get very ホット.

• 飛行機: They are used in planes.

Ferrite/Ceramic Magnets

These are not as 強い. But they are cheap.

• スピーカー: They are in many スピーカー.
• These magnets use magnetic stripes (cards).
• Fridges: They stick to your fridge.
• MRI装置.
• おもちゃ: You probably have them.

アルニコ・マグネット

These are old. But they are good with 熱.

• ギター・ピックアップ
• センサー
• Music: They are used in some music things.

2.2 Temporary Magnets

これら マグネット are not always “on.” They only pull when something else is there. Like a metal that gets pulled.

2.3 Electromagnets

これら マグネット use power. You can turn them on and off.

• Big Cranes: They lift heavy things.
• MRI: They help doctors see inside you.

正しいマグネットの選び方

3.1. Magnetic resonance angiography

It helps to know about magnet therapy. Here are the simple facts you need.

• 保磁力 (Hc): How hard is it to stop being a magnet?
• 温度安定性: Can it work when hot or cold?

• Energy product (BHmax: どのように 強い is it?

  透磁率 is imporatn.

  3.2 What Do You Need?

• 自動車: 電気自動車 need strong magnets. ネオジム がいい。

• メディカル: MRI needs big magnets.
• おもちゃ: Small, フレキシブルマグネット は良い。
• Magnetic flux leakage should be low.

Need help? Ask us! We can help you pick. Contact our engineers . We love to help!

NdFeB磁石が最高である理由

ネオジム磁石 are great! Here’s why.

• スーパー・ストロング:彼らは 最強.
• 小さい: They can be very small. But still 強い.
• 磁気共鳴is used for many things.
• シェイプス: We can make them in many shapes. Like blocks. Or discs.
• Magnetic damping is important for a smooth operation.
• コーティング: We can coat them. This stops rust. Learn about マグネット・グレード to make them easy to use.
• They show magnetoresistance
• で使用されている。 magnetic switches.

We made some ネオジム磁石 that help, 風力タービン make more power!

Step-by-step instructions: How to buy ndfeb magnets

• Pick Specs.
• Ask for samples.
• Order lots.
• Magnetic circuit is a closed path.

5.1. Buying Magnets: A Guide

Step by step process to help you buy.

• Find right size.
• Find right grade. *Pick a good coatign. ###5.2 Why Pick Us?
• グッド: We make good magnets.
• ヘルプ: We can help you.
• 速い: We ship fast. *We sell good grade magnets.

取得 quote! Or see our ネオジム book!

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