Friday 10 August 2018

Few Facts to Know about Ferrite Magnets

Do you know what a ferrite magnet is and what are its benefits? Well, ferrite magnets are found in their simplest form as they consist of iron oxide mixed with barium carbonate or strontium carbonate. These components are heated above 1000 degree Celsius temperature in the absence of air. After that, they are cooled and milled to a fine powder which is further compacted into a die and sintered at high temperature. And the resultant magnet is extremely hard and strong. However, magnets made from ferrite have a maximum flux density of 4,000 gauss approximately. There are many companies which manufacture ferrite magnet block and can be easily affordable.
Ferrite Magnet Block
Points to Consider When Buying Ferrite Magnet Block

Due to its low cost, ferrite magnets have huge applications. However, some facts are there which is to be considered when you are going to buy ferrite magnets. They are stated below:

1. Whether the ferrite magnet is soft or hard, it does not affect the hardness of the material.

2. A soft magnet has a low coercivity that’s why it is useful for alternating current applications such as high-frequency transformers and switched power supplies.

3. Hard ferrite magnets possess high magnetic permeability and a strong residual magnetic field, hence it is used in loudspeakers, DC motors, and so forth.

4. Ferrites are sintered so they can be molded into different shapes like blocks, discs, and rings.

5. They are not suitable at temperatures below zero, they may permanently lose their magnetism.

6. They do not require corrosion protection for outdoor use because they have corrosion- resistant property.

7. They are easy to handle because of their lower magnetic flux density.

Thus, these are the reasons why many companies buy ferrite magnets instead of expensive ones.









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Thursday 9 August 2018

Neodymium Magnets – The Strongest Rare Earth Magnet

Neodymium magnets are one of the most popular and the strongest rare-earth magnets in the world. They are made up of a combination of alloys of iron, boron, and neodymium. However, these magnets are used in many companies for various purposes. Some of their uses are stated below.
China Strong Magnet

Uses of Neodymium Magnets

1. Medical industry uses – The neodymium magnets are widely used for magno-therapy and physiotherapists to reduce pain. Moreover, they are also used in stabilizing the iron and hemoglobin content in blood. 

2. Iron industry uses – These magnets are used in iron industries for lifting huge iron materials from iron dust. Along with this, they are used in even heavy manufacturing industry in order to lift large ferrous items

3. Domestic uses – In homes these magnets are used in various ways such as in creating door and drawer closers, fixing furniture, and hanging pictures. They are also very helpful in cleaning processes.

4. Ornamental uses – They are generally used in Jewelry in order to keep the jewelry in its place.

5. Motor industry uses - In motor industries they are used in magnetically coupled pumps, electric motors and generators.

6. Entertainment industry uses – These magnets are used in loudspeakers, microphones, headphones, and so forth.

Thus, strong magnets are used in various useful products of daily life. So, if you want to buy the products of China strong magnet, all you have to do is type the keyword in a search engine and the top companies are on your screen.


Thursday 2 August 2018

All About Ceramic Magnets

The ceramic magnet is the most popular material for making magnets. It is made by using powdered magnetic materials such as iron oxide and strontium carbonate. However, ferrites having a high magnetic absorption capacity are called ceramic magnet. It is also known as ferrite magnets. It has a stronger mass magnetic field as compared to iron. It usually appears in the shape of cubes, cylinders, motor arcs, etc. Hence, Due to its hard and brittle nature, they are commonly used for fridge magnets, loudspeakers, musical instruments, brakes, ornamental purposes, and so forth.
Ceramic Magnet
The Manufacturing Process of the Ceramic Magnets

1. The ceramic magnet is manufactured by using powder technology process.

2. Iron oxide and strontium carbonate are mixed together and then heated at temperature 1800 to 2000 degrees Fahrenheit. Due to this chemical process ferrite is produced.

3. And then the ferrite is reduced to the very small sized particle by using the wet milling method.

4. Then the milled powder is dried or injected into a die under large hydraulic pressure.

5. The wet powder is compacted in the presence of a magnetic field to remove the water after that sintering takes place at the temperature of 2000 degrees Fahrenheit approximately.

6. After sintering the material is fully dense and ready for grinding.

7. In the last, the grinding of ceramic magnets is done.

In the conclusion, the importance of ceramic magnets is increasing day by day in the industries. And with the increase in the number of technologies and researches the applications of it increases gradually under high temperature.