Qianhui Magnetic
We are a professional r & d, production, sales of high-performance ndfeb magnetic materials and products of high salary technology enterprises. Main specifications of ndfeb magent are exported to the United States, Germany, South Korea, Japan and other countries.

supply sensor sintered ndfeb magnetic material for sensor experienced factory

The magnet used for motor is a dynamic magnetic circuit in which the length and volume of air gap are changed during operation. The magnet is affected not only by temperature change, but also by armature electromotive force on its reverse demagnetization. Because the working point is changing in the return line, the magnetic body is in a cyclic degaussing state. This requires us to consider not only the influence of temperature change but also the additional influence of dynamic demagnetization when designing the magnetic circuit of motor. Generally, the lowest working point of a power dc motor is about -0.6 because of armature effect. At this point, the b-h curve of the magnet is required to remain straight at the continuous working temperature of the motor. If the b-h curve is bent, the magnet will have permanent demagnetization due to armature effect. In addition, the irreversible loss of the magnetic flux of the magnet at the limit temperature of the motor is required to be less than 5%.

The magnet used for motor is a dynamic magnetic circuit in which the length and volume of air gap are changed during operation. The magnet is affected not only by temperature change, but also by armature electromotive force on its reverse demagnetization. Because the working point is changing in the return line, the magnetic body is in a cyclic degaussing state. This requires us to consider not only the influence of temperature change but also the additional influence of dynamic demagnetization when designing the magnetic circuit of motor. Generally, the lowest working point of a power dc motor is about -0.6 because of armature effect. At this point, the b-h curve of the magnet is required to remain straight at the continuous working temperature of the motor. If the b-h curve is bent, the magnet will have permanent demagnetization due to armature effect. In addition, the irreversible loss of the magnetic flux of the magnet at the limit temperature of the motor is required to be less than 5%.

Ndfeb permanent magnet is mainly used in micro motor, permanent magnet meter, electronic industry, automobile industry, petrochemical industry, nuclear magnetic resonance device, audio equipment, magnetic suspension system, magnetic drive mechanism and magnetic therapy equipment, etc., it can also be used in oil path magnetization of motorcycle and automobile to save oil.

The third generation of rare earth permanent magnet NdFeB (NdFeB) is the strongest performance of permanent magnet in contemporary magnets, it not only has high remanence, high coercive force, high magnetic energy product and high performance price ratio features such as, and easily processed into a variety of sizes, is now widely used in aviation, aerospace, electronics, electro-acoustic, mechanical and electrical, instruments, meters, medical technology and other needs of permanent magnetic field of the equipment, especially suitable for the development of high performance, miniaturization, light-duty and upgrading of products.

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Shandong Qianhui Magnetic Materials Co., Ltd., founded in 2016, is a high-paying technology enterprise specializing in research, development, production and sales of high performance magnetic materials such as ndfeb and its products. The company has 50-100 employees, covering an area of 20,000 square meters. The company has years of production and sales history of ndfeb magnetic materials, with independent import and export rights, products exported to the United States, Germany, Korea, Japan and other countries.

Qianhui company rely on advanced production equipment and efficient enterprise management, passed the ISO9001 quality management system, 14000 environment system certification, SGS environmental protection certification and the European EN71 certification. Products are with high performance, high precision, small size. The company's magnetic materials products are widely used in electronics, electrical appliances, electric motors, electroacoustic, electric cars, VCM motors, voice coil motors, linear motors, computers and other fields. The product features low weight loss, high consistency and stability.

Development view: innovation, implementation, speed, service.

Customer view: excellent quality, reasonable price, high quality service.

Talent view: the best, the mediocre, the average.

Values: human value is higher than the value of things, common value is higher than personal value, social value is higher than profit value, and user value is higher than production value.

Enterprise spirit: qianhui people, the spirit of diligence, with a vast mind, achievement of qianhui cause.

Corporate culture: sincerity, respect; Caring and happy; Gratitude, harmony.

 

1.Could I get samples?

Yes, we have products in stock.

 

2.How about the quality of the magnets?

We have the certification of ISO.TS9001 .

 

3.What's your minimum order quantity?

A: Both small order and bulk order are available. But we can give more discount on big order,which means you can pay less on one piece.

 

4.What package do you use for the products?

A:We have standard carton for products. Besides it can be customized by clients, 

 

5.How about the payment term? 

A: we adopt T/T and L/C. About T/T, 30% T/T in advance as deposit,70% balance payment before shipment. If  you need other payment term, please contact us.

 

6. What information do I need to supply when I have a inquiry?
If you have any inquiry, please prepare the following items:

a. Dimensions or drawing with tolerances.
b. Material grade or magnetic properties.
c. Quantity and delivery terms.
d. Surface coating (If necessary).
e. Magnetic direction.

 

7.What about the price?

A: As we all know, the price of the products depends on the quality of the products. We can give you the best price of each products with high quality and good service.

 

8.How long will you deliver sample and bulk order?
A: We can send sample to our clients in 3 days if we have products  in the stock. If not, around 5 days for sample and 20 days for bulk order.

 

9.Could I visit your factory?

Yes, you are welcome. Besides, we can provide the accommodation for our clients.

 


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