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alnico magnet for hall sensor
General Information
Excellent temperature stability, high residual induction, and relatively high energies characterize Alnico materials, composed primarily of alloys of Aluminum, Nickel, and Cobalt. They are manufactured through either a casting or sintering process. Cast magnets may be manufactured in complex shapes, such as horseshoes, not possible with other magnet materials. Sintered Alnicos offer slightly lower magnetic properties but better mechanical characteristics than cast Alnicos.
Cast Alnico 5 is the most commonly used of all the cast Alnicos. This material is used extensively in rotating machinery, meters, instruments, sensing devices, and holding applications, to name a few.
Alnico is hard and brittle. Machining or drilling cannot therefore be accomplished by ordinary methods. Holes are usually cored in at the foundry, and magnets are cast close to final size and then finish machined to closer tolerances.
Alnico has a low coercive force, and is easily demagnetized if not handled with care. For optimum performance of Alnico 5, the magnetic length should be approximately 5 times the pole diameter or equivalent diameter. For example, a 0.250" diameter magnet should be about 1.250" long.
Because of its higher coercivity, Alnico 8 may be used in shorter lengths and in disc shapes.
MAGNETIZATION DIRECTION
Related products:
1. By Sea-freight: Magnets would be covered by standard carton box,inside filled with iron shield.If GW is over 500KGS,pallet is required.Shipment schedule would be arranged as soon as possible.
2. By Air-freight: Magnets could be packed by carton box.In addition,magnetism would be shielded through air-freight.
*Payment:
For small amount, our usual way of payment is 100% T/T in advance, Western Union or Paypal.
For large amount, we also could accept 30% prepayment before production, 70% after fax of Bill of loading.
*Delivery time:
We can provide scheduled shipments to fit your production schedule.
Company name: Hangzhou YangYi magnetics Co., Ltd.
Year of establishment:2007
Location:Hangzhou City, Zhejiang Province, P.R. China.
Main products:Neodymium magnets, SmCo magnets, Alnico magnets, Mini magnets, Magnetic filters, pot magnets, magnetic assemblies, etc.
Quality certification:ISO9008:2008, SGS.
Market:America, Germany, Italy, UK, France, Japan, Korea, Iran, Israel, Domestic market, etc.
Quality control:
1. What is common dimension of your products?
Sizes,shapes,composition are all available to customized.
2. What information do I need to submit as I have a inquiry?
The following items are required:
a. Dimensions or blueprint with tolerances.
b. Composite grade or magnetism properties.
c. Magnetism direction.
d. Surface treatment (if necessary).
e. Quantity and delivery terms.
3.How long would feedback be?
As soon as we can,usualy reply you in 24 hours.
4. What is the common price of your rare earth magnet?
According to cost of raw materials and manufacturering process,we constantly offer quality magnets with reasonable price.
5.Could I get samples?
Samples are available.
6.How long would sample and bulk order arrive at?
If materials in our stock, we can release them within 3 days. If materials not available in stock, production time for sample would be 5-10 days, 15-25 days for bulk order indeed.
7. What is the usual payment method for your items?
T/T, Western Union, Secure payment, Paypal.
Please feel free to contact me !
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