Bộ Dụng Cụ Thí Nghiệm Hóa Học Nam Châm Hình Chữ U 11cm

Brand: jenyaush
Model: medium package
Production enterprises: xuzhou gold key science and education co. ltd.

This set of magnets consists of:

2pcs 110mm bar magnet 65mm high horse hoof shape magnetic iron one ring magnet (magnetic super) 2pcs

This product is the largest size of the magnet at the same price, the higher the cost of magnet.

It is a necessary tool for middle school students to learn science lessons and a good educational toy

Friend, why do you buy teaching magnets

Many buyers' friends would say: buy this magnet for kids,Play with scientific knowledge,But buy this magnet,What does it really do to teach magnets,As the name implies, it is a magnet for teaching,The main objective is to enable students to learn 2 points of knowledge:

First, what is the magnet's pole? Textbook defines: the most magnetic part of the magnet, for the bar magnet, the magnetic pole is almost non-magnetic in the middle of the two ends of the magnet, and the magnetic pole is divided between n and s poles

Second, understanding the interaction between magnetic bodies is that the magnetic poles of the same name are mutually exclusive and the magnetic poles of different names attract each other

Teaching magnets are designed for this purpose,China-wide teaching magnets are in great touch,So magnetic,But some friends,I don't know what the teaching magnet is,Often requires strong magneticity,Or use the middle part of the magnet to judge magnetic strength,It's a great mistake.If you want to buy magnetically strong, buy this store's black ferrite industrial magnet, or buy that rare earth magnet, and if you want to use the magnetic properties of rare earth magnets to require this color-based instructional magnet, you can't expect that there's no such product to satisfy you

Ultimately: the magnet magnet magnet magnet must be so specific at the moment why it is the function of the magnet in the teaching, more professional from materials, magnetization knowledge, not two sentences can be said thoroughly, and then briefly introduce

There are currently only two types of teaching magnet materials:

First, sintering with ferrite packages and then magnetic charging, which is relatively good, more important for maintaining magnetic properties for a long time, at low cost and with fragile defects (Most of the teaching magnets are now).

The second is the use of aluminum iron carbon (commonly known as magnetic steel), which is not magnetically strong, has a short magnetic time, and has high production costs

Reminds, in particular:

-this product is the teaching magnet commonly used in primary and secondary schools. it is an ferrite material.(Strong magnetics are generally rare earth materials, common small, if so large strong magnetic is expensive, the american patriot missile is used rare earth strong magnetic, hip hop.)

-due to the characteristics of magnet materials,Ring magnet magnetic strong,But the bar box in the common teachi