General Magnetic Co., Ltd.
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Price: | 0.02~50.79 USD |
Payment Terms: | T/T,L/C,WU;Paypal |
Place of Origin: | Zhejiang, China (Mainland) |
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Cast AlNiCo 5 Magnets
Products Image
Description
1.Material:aluminum-nickel-cobalt,etc.
2.Grade: 2, 3, 5, 7, 8, 9
3.Shape: Common and special ,mostly shape is block and round
4.Size:D5x17mm,D4.95x16 or according your requests
5.Application:measuring instruments, flywheel generators and sensors, stepping motor and relays, flow and AVO meter, odometer of automobile and motorcycle, buzzer of mobile phone and so on.
AlNiCo Magnets Advantage:
Excellent temperature stability
Wide range work temp.
High residual induction
Good anti-corrosion
Transportation:
All available shipping ways could be applied, by courier, by air or by sea.
Appointed shipping company or our own forwarders all could be used in shipment.
Full-way tracking the cargos for you before the goods arrive.
Payment Options:
Payment methods available include: Paypal, T/T,Western Union. Please contact us for details.
Buyer Guide:
In order to quote you the best price quickly, please provide the following information:
1.Product size,grade,etc
2.Order quantity;
3.Attached the drawings if customized
4.Any special packing or other requirements
Our advantage:
1. Fast reply: all your enquiry will be replied within 24 hours;
2. Reasonable price: we are direct manufacturer and able to offer better price;
3. Good quality: we are experienced in quality control;
4. Fast delivery time:7-20 days
Residual Induction (Br):
Also called "Residual Flux Density". It is the magnetic induction remaining in a saturated magnetic material after the magnetizing field has been removed.This is the point at which the hysteresis loop crosses the B axis at zero magnetizing force, and represents the maximum flux output from the given magnet material. By definition, this point occurs at zero air gap, and therefore cannot be seen in practical use of magnet materials.
Coercive Force (Hc):
The demagnetizing force, measured in Oersteds, necessary to reduce observed induction, B, to zero after the magnet has previously been brought to saturation.This value indicates the ability of magnet to keep its magnetic force unchanged.
Maximum Energy Product (BHmax):
The magnetic field strength at the point of maximum energy product of a magnetic material. The field strength of fully saturated magnetic material measured in Mega Gauss Oersteds, MGOe.
How to Choose Permanent Magnet Materials
Each permanent magnet material discussed above has its own pros and cons. How to choose the right one for your particular application is a challenge to any user. A balance between cost and performance must be considered in selecting of permanent magnet material. Following is a Comparison Table to help you select a right permanent magnet material for your applications.
Permanent Magnet Material Comparison Table
Note: The data listed in the table are for reference only
Material | Maximum Energy Products | Coercivity | Maximum Working |
Nd-Fe-B (sintered) | Up to 49 | Up to 30 | 200 |
Nd-Fe-B (bonded) | Up to 10 | Up to 11 | 150 |
Sm-Co (sintered) | Up to 30 | Up to 25 | 350 |
Sm-Co (bonded) | Up to 12 | Up to 10 | 150 |
Alnico | Up to 9 | Up to 2 | 550 |
Up to 4 | Up to 3 | 300 |
Alnico magnets are made by casting or sintering a combination of aluminium, nickel and cobalt with iron and small amounts of other elements added to enhance the properties of the magnet. Sintering offers superior mechanical characteristics, whereas casting delivers higher magnetic fields and allows for the design of intricate shapes. Alnico magnets resist corrosion and have physical properties more forgiving than ferrite, but not quite as desirable as a metal.