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24/04/15

Ferrite magnet main parameters and grade data sheet (comprehensive)

24/04/15

How much money a powerful magnet?

How much does a strong magnet cost? How much does a ton of strong magnets cost? Often you can see posts on web pages asking and answering such questions, but what about the answer? You will find that some promotional companies have not responded positively to this question. Why is it difficult to quote the price of magnets? Or something else? As the third-generation permanent magnet material, NdFeB has the advantages of small size, light weight, and strong magnetism, and is widely used in all walks of life. NdFeB magnet is by far the best performance to price ratio of the magnet. So what is the price of a strong magnet? Unlike other products, there is no clear price for high-strength magnets.

24/04/15

Is NdFeB magnet harmful to people?

The magnetic induction intensity of ordinary magnets is not high and will not cause harm to the human body. If you 've been working on a part for a long time and it's still being studied, it's as mysterious as acupuncture, as if it's more mysterious than acupuncture. However, because the CRT is generated by scanning the electron current under the deflection of the magnetic field, it interferes with the CRT. The applied magnetic field distorts the magnetic field in the imaging tube, causing the electron flow to deviate from the normal scanning trajectory. Causes image distortion (black and white and color display) and mottling (color display only). General multimedia speakers use magnetic shielding technology, placed next to the CRT will not cause any impact, but take out the horn magnetic

24/04/15

The harm of magnet toys to children

In fact, magnetic science and educational toys are a creative and novel toy gift that allows children to create a variety of models based on their own imagination. It can exercise hands, brain, thinking and creativity, stimulate curiosity and imagination, develop logical thinking ability and scientific thinking ability, and cultivate creativity, perception and concentration. A good parent toy. When buying magnetic toys, we should go to regular stores or websites and choose magnetic toys with regular packaging according to the age of the child. When children play with toys, parents should do a good job of safety education. Children under the age of 6 are advised to play with their parents. in 2

24/04/15

How to observe the magnetic field and identify the magnetic poles?

Generally speaking, the magnetic field of a strong magnet is invisible. This phenomenon also increases the mystery of the magnet and stimulates everyone's curiosity. If you want to visualize the abstract magnetic field and identify the magnetic poles, you can do so with a few simple aids. 1. The magnetic induction line demonstration board has vertical, horizontal and three-dimensional varieties. Bar magnets and hoof magnets can be used to demonstrate the formation of surrounding magnetic induction lines and the formation of magnetic induction lines under different conditions of magnetic pole attraction or repulsion. It is also possible to demonstrate the formation of individual spatial magnetic induction lines around the current magnetic field. Generally made of plexiglass, novel and beautiful, the effect is obvious, both intuitive and can be projected. Make

24/04/15

Strong magnet can suck stainless steel?

Stainless steel with its beautiful appearance, corrosion resistance characteristics, not easy to damage the advantages, more and more people's favorite. There are more and more places using stainless steel, such as pots and pans, urban sculpture, architecture, decoration of living rooms, etc., but people do not know much about the discrimination of stainless steel. Some customers try on stainless steel utensils with magnets when buying stainless steel kitchenware. It is believed that the magnet is attracted by stainless steel, and the magnet is not attracted by stainless steel. In fact, it is unscientific to judge good or bad by magnet attraction, which shows that people still have misunderstandings about stainless steel. Iron and steel are usually distinguished by the amount of carbon. Iron-carbon alloys with a carbon content of less than 2% are

24/04/15

Learn the basics and terminology of these magnets, so you know all about magnets

Fundamentals of Magnets Overview of Magnetic Materials: Magnetism is one of the basic properties of matter. Magnetic phenomena are associated with various forms of charge movement, due to the electron movement and spin inside the material will produce a certain size of the magnetic field, which produces magnetism. All substances are magnetic. According to the different magnetic nature can be divided into paramagnetic material, diamagnetic material, ferromagnetic material, antiferromagnetic material, and ferrimagnetic material, ferromagnetic material and ferrimagnetic material belonging to the strong magnetic material, usually these two types of material collectively referred to as magnetic materials. Classification, performance characteristics and uses of magnetic materials: 1 Ferrite magnetic materials: 1

24/04/15

The magnet manufacturer tells you what is the normal working temperature of the magnet?

The magnet has no effect on the temperature drop when working, and is more sensitive to the temperature rise. Each magnet has its own maximum temperature. For example, the maximum working temperature of ferrite magnets is 300 degrees, and the maximum working temperature of alloy magnets such as neodymium iron boron, samarium cobalt magnets, and alnico magnets can reach 500 degrees. AlNiCo magnet is an alloy of aluminum, nickel, cobalt, iron and other trace metals. After casting can be processed into a variety of different sizes and shapes, the processability is very good. AlNiCo permanent magnets have the lowest reversible temperature coefficient, and the maximum operating temperature can be as high as 600 degrees Celsius. alnico magnet

24/04/15

Basic parameter knowledge of magnet

Permanent magnet material: permanent magnet material is magnetized by an external magnetic field, the magnetism does not disappear, and can provide a stable magnetic field to the external space. There are four commonly used measurement indexes for NdFeB permanent magnets: remanence (Br) units are Tesla (T) and Gauss (Gs) 1Gs = 0.0001T. A magnet is magnetized by an external magnetic field in a closed-circuit environment until the external magnetic field is removed after technical saturation. At this time, the magnetic induction intensity of the magnet is called remanence. It represents the maximum magnetic flux value that the magnet can provide. It can be seen from the demagnetization curve that it corresponds to the case when the air gap is zero, so the magnetic induction intensity of the magnet in the actual magnetic circuit is less than the remanence. neodymium iron

24/04/15

What are the applications of magnets in everyday life?

Magnets sound familiar, we all know that magnets can suck iron, many people have used it, but when asked about the specific application of magnets in daily life, it is difficult to summarize. Today, we will specifically analyze the relationship between magnets and our lives. 1. electroacoustic devices: mobile phones, televisions, stereos, headphones and other sound-producing equipment are all realized by magnets as permanent external magnetic fields with coils and diaphragms to generate vibration. 2. electronic devices: hibernation holster for mobile phone, tablet, etc. 3., bags, holster and many other items use magnets to adsorb and fix them. 4. medical field: MRI is the most commonly used in medical examination. is to use people

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