Magnet,Magnet produce,Fridge Magnet

The company, established in 1992, after more than 10 years of efforts, has grown into sets of research and development, production for one medium private enterprises. Companies are now implementing the ISO9000 quality mana

gement system and has made ISO9001:2000 quality management system certification. The strict, orderly production management company, operating flexibility, strong product magnet design and development capability. The companies in industries with high visibility and influence, the company leaders were appointed as Chinese scholar Mr. magnetic learn more members.

The company has set up three branch :
One category of permanent magnetism Nianjie production plant professional materials, magnet iron and various magnetic plastic products, plastic bucket with an annual 3,000 tons of plastic and iron, 60 tons of molded plastic bucket;
Production professional production Nu:tiepeng rare earth permanent magnetism materials stronger heteromorphosis processing capacity to meet the 72-hour electroplating products Yanwu testing requirements, production 240 tons;
Three professional production ferrites permanent magnetism plant materials, product performance mature stability, widely used for the electrical, toys, metal industries, production 5,000 tons.
The years of experience and experiments on the production of various magnetic material understanding, the company has invested considerable human, material for the development of magnetic products. Batch input has been produced products : magnetic security increases target, the compass, magnetic intellectual puzzles, magnetic letters (figure). These products widely used for sports entertainment, teaching, intellectual development of children, toys gifts, and other fields. The Company has significant production magnetic products exported to Europe and the United States, Southeast Asia, and other countries and regions, and therefore called on the export of products with rich knowledge to meet different client needs.

Guangdong Dawa Electric Technology Co. , Ltd. Specializes in producing permanent
Magnet (consisting of ferrite permanent magnet, rubber magnet, adhesive/sinter Mb, Fe and boron), which is widely applied in the electroacoustics, toys, health & and magnetic door handle etc. . The company also provides compass, Another dart magnetic and magnetic puzzle looked exactly etc. magnetic products.
The company has set up the Plastic Magnet and Nd. Fe and Boron Permanent Magnet Producing Factory in Guangzhou and produces various kinds of plastic injection magnet. calendared sheet/rolling materials plastic magnet, iron powder adhesive etc. magnetic materials as well as various alter of Nd. Fe. and Boron permanent magnet which can satisfy the 72-hour or more salt fog test.
Our company boasts of consultative technical strength and is capable of manufacturing multi-polar magnetic charging mode (including parallel straight line. wave, and Bagua shaped petal shaped) permanent magnet, such as VCD core magnet, water pump and health & magnet magnet etc. .
Our company has established large warehouses in Guangzhou and Shenzhen. The products feature complete varieties, storing adequate, timely delivery and reasonable price. Our products have also been exported to Hong Kong and Macao etc.

How can an iron magnet produce such changes? Edmond Halley (of comet fame) ingeniously proposed that the Earth contained a number of spherical shells, one inside the other, each magnetized differently, each slowly rotating in relation to the others.

The Board of Directors of Magnet Schools of America established January 2006 as National ... Magnet Schools of America invites all magnet schools to plan

Hans Christian Oersted was a professor of science at Copenhagen University. In 1820 he arranged in his home a science demonstration to friends and students. He planned to demonstrate the heating of a wire by an electric current, and also to carry out demonstrations picasa of magnetism, for which he provided a compass needle mounted on a wooden stand.

While performing his electric demonstration, Oersted noted to his surprise that every time the electric current lyrics was switched on, the compass needle moved. He kept quiet and finished the demonstrations, but in the months that followed worked hard trying to make sense out of the new phenomenon.

But he couldn&quott! The needle was neither attracted to the wire nor repelled from it. Instead, it tended to stand firefox at right angles (see drawing below). In the end he published his findings (in Latin!) without any explanation.

Andr��-Marie Amp��re in France felt that if a current in a wire exerted a magnetic force on a compass needle, two such wires also should interact magnetically. In a series of ingenious experiments he showed that this pplive interaction was simple and fundamental--parallel (straight) currents attract, anti-parallel currents repel. The force between two long straight parallel currents was inversely proportional to the distance between them and proportional to the intensity of the current flowing in each.

Only for those pursuing the math: this is not the basic force formula. Given two short parallel currents I1 and I2, flowing in wire segements of length L1 and L1 and separated Last Supper by a distance R, the basic formula gives the force between them as proportional to it gets further complicated if the currents flow in directions inclined to each other by some angle). To find then the force between wires of complicated shape that carry electrical currents, all these little bitty contributions to the qq2007 force must be added up. For two straight wires, the final result is as above--a force inversely proportional to R, not to R2

There thus existed two kinds of forces associated with electricity--electric and magnetic. In 1864 James Clerk Maxwell demonstrated a subtle connection between the two types of force, unexpectedly involving the velocity of light. From this xunlei connection sprang the idea that light was an electric phenomenon, the discovery of radio waves, the theory of relativity and a great deal of present-day physics.