n35 windows ndfeb magnet for building professional factory supply

The commonly used magnetic powder cores are iron powder cores, polymorphism gold powder cores and ferrosilicon aluminum powder cores. The effective magnetic conductivity of the magnetic core is. The calculation formula for the electron inductance and the effective magnetic conductivity of the core is as follows: rente = DL/4N2S * 109. Where, D is the average diameter of the magnetic core (cm), L is the inductance (enjoy), N is the number of winding turns, and S is the effective area of the magnetic core (cm2).

Magnetic powder core is a kind of soft magnetic material produced by mixing ferromagnetic powder particles and insulating media. Because the ferromagnetic particles are small (0.5 ~ 5 microns are used at high frequencies) and are separated by non-magnetic electro-insulating film materials, the eddy current can be isolated on one hand, and the materials are suitable for higher frequencies. On the other hand, due to the gap effect between particles, the material has low permeability and constant permeability. Due to the small size of the particles, there is basically no skin aggregation, and the magnetic permeability is stable with the change of frequency. Mainly used for high frequency inductors. The magneto-electric properties of magnetic powder cores mainly depend on the magnetic conductivity of powder materials, the size and shape of powder particles, their filling coefficient, the content of insulation media, the forming pressure and the heat treatment process.

The commonly used magnetic powder cores are iron powder cores, polymorphism gold powder cores and ferrosilicon aluminum powder cores. The effective magnetic conductivity of the magnetic core is. The calculation formula for the electron inductance and the effective magnetic conductivity of the core is as follows: rente = DL/4N2S * 109. Where, D is the average diameter of the magnetic core (cm), L is the inductance (enjoy), N is the number of winding turns, and S is the effective area of the magnetic core (cm2).

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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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