Strong Magnetic Pickup Tools 20150216
Neodymium Permanent Magnet Manufacturer China Rare Earth Magnet Limited
Product Name: Strong Magnetic Pickup Tool
Special Type: Various types of magnetic pickup tools can be customized.
Permanent Magnet Materials: Sintered Neodymium Magnet
Surface Treatment: It is coated with NiCuNi which is rust-proof and corrosion-resistant.
Magnetized Direction: Through Thickness
Max. Working Temperature: 80 Celsius degree
Manufacturer: China Rare Earth Magnet Limited
Theories and Little Knowledge about Magnet Magnets,
often made of metal alloy with strong magnetism, refer to objects or materials that can produce magnetic field. Traditionally, magnets can be classified into “permanent magnets” and “non-permanent magnets”. Some permanent magnets are natural products, also called “natural magnets”, but some are man-made magnets (the strongest magnets are neodymium magnets ). Non-permanent magnets may probably loss their magnetism.
Greeks and Chinese discovered that there were some naturally magnetized stones in nature, calling them “magnets”. These stones can magically attract small pieces of iron sheets and always point at the same direction after swinging. Early navigators told direction with these magnets as the earliest compasses on the sea. Through thousands of years of development, magnets have become strong materials in today’s life. Alloys made of different materials can reach the same effect as magnets, which can improve magnetism as well. In the 18th century, man-made magnets came into being, but it was a slow process of producing stronger magnetic materials. People could not manufacture alnico magnets until 1920s. In 1950s, people invented ferrite magnets in 1970s and rare earth magnets including NdFeB magnets and SmCo magnets. Currently, with rapid development of magnetic technology, strong permanent magnetic materials make components smaller.
Q: What is the industrial definition of standard N and S poles? How to distinguish N pole of a magnet without any mark?
A: The definition of N pole is that it points at North Pole of the earth after spinning and S pole points at South Pole. Obviously, you can not distinguish N or S poles only relying on eyes.
Q: How to manage and keep magnets?
A: You should be very careful for magnets will attract each other automatically, which may injure hands. Sometimes due to collision during the attraction, magnets may be damaged as well.
Things that are easy to be magnetized should place far away from magnets, such as soft disks, credit cards, computer display cards, watches, mobile phones and medical devices, especially cardiac pacemakers.
Magnets in big sizes should be separated by plastic and stiff paper. Also, they should be kept in dry and constant-temperature environment.
Q: How to separate magnets?
A: Only materials that can be attracted on magnets can block magnetic field. The thicker the materials are, the better the barrier effect is.
Machining Process of Neodymium Rare Earth Permanent Magnet
Technological process:
Materials preparation→ Smelting→ Powder making→ Molding→ Sintering and tempering→ Magnetism inspection→ Grinding→ Cutting→ Electroplating→ Finished products
In these processes, materials preparation is basic and the key is sintering and tempering.
Means of production: smelting furnace, jaw breaker, ball mill, jet milling, molding machine, vacuum sealing machine, isotropic pressing machine, sintering furnace, vacuum heat treating furnace, gauss meter
Product Name: Strong Magnetic Pickup Tool
Special Type: Various types of magnetic pickup tools can be customized.
Permanent Magnet Materials: Sintered Neodymium Magnet
Surface Treatment: It is coated with NiCuNi which is rust-proof and corrosion-resistant.
Magnetized Direction: Through Thickness
Max. Working Temperature: 80 Celsius degree
Manufacturer: China Rare Earth Magnet Limited
Theories and Little Knowledge about Magnet Magnets,
often made of metal alloy with strong magnetism, refer to objects or materials that can produce magnetic field. Traditionally, magnets can be classified into “permanent magnets” and “non-permanent magnets”. Some permanent magnets are natural products, also called “natural magnets”, but some are man-made magnets (the strongest magnets are neodymium magnets ). Non-permanent magnets may probably loss their magnetism.
Greeks and Chinese discovered that there were some naturally magnetized stones in nature, calling them “magnets”. These stones can magically attract small pieces of iron sheets and always point at the same direction after swinging. Early navigators told direction with these magnets as the earliest compasses on the sea. Through thousands of years of development, magnets have become strong materials in today’s life. Alloys made of different materials can reach the same effect as magnets, which can improve magnetism as well. In the 18th century, man-made magnets came into being, but it was a slow process of producing stronger magnetic materials. People could not manufacture alnico magnets until 1920s. In 1950s, people invented ferrite magnets in 1970s and rare earth magnets including NdFeB magnets and SmCo magnets. Currently, with rapid development of magnetic technology, strong permanent magnetic materials make components smaller.
Q: What is the industrial definition of standard N and S poles? How to distinguish N pole of a magnet without any mark?
A: The definition of N pole is that it points at North Pole of the earth after spinning and S pole points at South Pole. Obviously, you can not distinguish N or S poles only relying on eyes.
Q: How to manage and keep magnets?
A: You should be very careful for magnets will attract each other automatically, which may injure hands. Sometimes due to collision during the attraction, magnets may be damaged as well.
Things that are easy to be magnetized should place far away from magnets, such as soft disks, credit cards, computer display cards, watches, mobile phones and medical devices, especially cardiac pacemakers.
Magnets in big sizes should be separated by plastic and stiff paper. Also, they should be kept in dry and constant-temperature environment.
Q: How to separate magnets?
A: Only materials that can be attracted on magnets can block magnetic field. The thicker the materials are, the better the barrier effect is.
Machining Process of Neodymium Rare Earth Permanent Magnet
Technological process:
Materials preparation→ Smelting→ Powder making→ Molding→ Sintering and tempering→ Magnetism inspection→ Grinding→ Cutting→ Electroplating→ Finished products
In these processes, materials preparation is basic and the key is sintering and tempering.
Means of production: smelting furnace, jaw breaker, ball mill, jet milling, molding machine, vacuum sealing machine, isotropic pressing machine, sintering furnace, vacuum heat treating furnace, gauss meter
