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Topic: Alnico

	Alnico - Wikipedia, the free encyclopedia
		Alnico alloys are composed primarily of cobalt, nickel, and aluminium with the addition of iron, copper, and sometimes titanium.
		Alnico magnets produce magnetic field strength at their poles as high as 1500 gauss, or about 3000 times the strength of the earth's magnetic field.
		Alnico magnets are used in electric motors, sensors, loudspeakers, and cow magnets.
	en.wikipedia.org /wiki/Alnico (251 words)

	Alnico - Dura Magnetics (Site not responding. Last check: 2007-10-08)
		Alnico is largely comprised of Iron, Cobalt, Aluminum, and Nickel with trace amounts of other elements used to tailor the alloy’s magnetic and mechanical properties.
		Alnico magnet alloy is a mature technology and is manufactured by casting or sintering.
		Alnico also has a low Energy Product (BHmax) when compared to the Rare Earth magnet alloys, even though their Residual Inductions (Br) are comparable.
	www.duramag.com /magnetic_materials/Alnico (1678 words)

	Alnico Magnets - Magna Works Technology
		Alnico magnets are excellent choices for applications involving vibration and shock as they have good resistance to demagnetization.
		To obtain optimum performance of Alnico 5 the magnetic length should be approximately 5 times the diameter for rods, or for rectangular magnets length should be 5 times diameter of an equivalent circle.
		Alnico magnets are derived from Aluminum, Nickel and Cobalt used in their manufacture.
	www.magnaworkstechnology.com /alnico.htm (257 words)

	Arnold - Alnico Magnets
		Alnico also boasts the lowest temperature coefficient of any commercial magnet material (.02% per degree centigrade) allowing for excellent stability over a wide temperature range.
		Alnico has experienced renewed interest in recent years in such temperature-sensitive applications as hall-effect and MR-based automotive and electronic sensors, in addition to the traditional magnetron, TWT amplifiers, actuators, motors and instruments applications that have long relied upon Alnico.
		The most efficient use of Alnico requires that it be magnetized after the magnet has been assembled with its pole pieces into the final magnetic circuit.
	www.arnoldmagnetics.com /products/alnico (491 words)

	AMP - Alnico Magnetic Products, Rods, Square Bars, Rotor, Holding, Cow Magnets, Channel, Button, Horseshoes, Pot Magnets (Site not responding. Last check: 2007-10-08)
		Alnico is hard and brittle (45-55 Rockwell C), and is not suitable for drilling, tapping or conventional machining operations.
		Typical alnico 5 applications require a long magnetic length to pole surface ratio (usually 4:1 or greater) to insure good magnetic performance.
		Alnico 5 is the grade most widely used but we also stock alnico 2, 5-7, 8 and 9.
	www.adamsmagnetic.com /m_alnico.htm (289 words)

	Powerfull Alnico magnets--Alnico bar magnets,Alnico Plug Magnets,Alnico Rod magnets,Alnico Holding magnets
		Alnico permanent magnets are made primarily from aluminum, nickel, cobalt, copper, iron and sometimes titanium.
		Sintered alnico is made from a powdered mixture of ingredients that are pressed into a die under tons of pressure, sintered in a hydrogen atmosphere and then cooled either within a magnetic field or without (anisotropic vs. isotropic).
		Alnico is a very hard and brittle material and does not lend itself to conventional machining.
	www.allmagnetics.com /alnico.htm (445 words)

	Alnico Magnet China Rare Earth Magnet Co. (Site not responding. Last check: 2007-10-08)
		Cast alnico magnets may be manufactured in complex shapes, such as horseshoes, not possible with other alnico magnet materials.
		Alnico has a low coercive force, and is easily demagnetized if not handled with care.
		Because of its higher coercively, Alnico 8 may be used in shorter lengths and in disc shapes.
	www.permanentmagnet.com /alnicomagnets.htm (737 words)

	Alnico (Site not responding. Last check: 2007-10-08)
		The Alnico horseshoe shape, used long ago, has become an icon for magnets, even though this shape is increasingly replaced.
		Alnico horseshoes can often be replaced by ceramic assemblies to save money.
		Cast alnico is melted and poured into a mold.
	www.unclespot.com /alnico.html (201 words)

	Echelon Magnetics LLC ALNICO Magnets
		ALNICO remains the workhorse of the permanent magnet industry and can be relied upon to deliver impressive flux density at an economical price.
		Cast ALNICO magnets may be manufactured in complex shapes, such as horseshoes, not possible with other magnet materials.
		Alnico magnets are manufactured through either casting or sintering processes.
	www.echelonmagnetics.com /ALNICO.html (464 words)

	Scotty Moore Alnico V
		Use of an alnico V magnet isn't particularly unique (Gibson has used the same magnet on several pickups) but that name has always stuck with that pickup.
		Rather than have a long rectangular magnet at the core of the pickup on which metal polepieces (typically screws) are attached and consequently magnetized, Lover designed this pickup with long alnico V magnets operating as the polepieces.
		That's why you see so few guitars equipped with original Alnico V pickups - - it was only available on a few high end models (which are always produced in lower quantity) from 1954 through early 1957.
	www.scottymoore.net /alnicov.html (601 words)

	Magnetic Materials - Dura Magnetics - Alnico Tech Information (Site not responding. Last check: 2007-10-08)
		Final shaping of the Alnico materials is achieved by abrasive grinding and cutting where close tolerances are required, otherwise it is desirable to use the part with as cast features.
		Caution: Alnico magnets can be adversely effected by exposure to the repulsive forces generated by another magnetized magnet or by stray AC fields.
		Alnico materials are hard and brittle and are not suited to common drilling, tapping, or machining operations.
	www.duramag.com /magnetic_materials/Alnico/techinfo.asp (539 words)

	Alnico Magnets - Dexter Magnetic Technologies (Site not responding. Last check: 2007-10-08)
		Alnico is produced in many grades to fit the requirements of these applications, from Alnico 1 to Alnico 12, but the most popular grades are 2, 5 and 8.
		Alnico magnet material is made by alloying aluminum, nickel and cobalt with iron.
		In either case, a magnetizing force of 3.0 kOe must be applied to Alnico 5 magnets and 7.0 kOe for Alnico 8.
	www.dextermag.com /Page81.aspx (578 words)

	Allstar Magnetics, Inc - Magnets - AlNiCo (Site not responding. Last check: 2007-10-08)
		Alnico describes a family of materials that possess excellent temperature stability, high residual induction, and relatively high energies.
		The high nickel content of alnico results in good resistance to corrosion and oxidation, and this material is also a good electrical conductor.
		Alnico is hard, brittle and unsuited to common drilling, tapping or machining operations.
	www.allstarmagnetics.com /magnets/alnico.asp (194 words)

	Fender Vintage Noiseless pickups
		Alnico give the sound an entrancing captivating character, a depth and dimension and the projection to be easily 'heard' in the mix.
		Alnico is rich in midrange complexity and upper midrange bite and grit that makes playing an interesting, stimulating exciting and deeply satisfying experience.
		Alnico is an alloy of 4+ different metals (iron, nickel, aluminum, and one or more of the elements cobalt, copper, and titanium), is hard and brittle with a crystalline structure.
	www.kinman.com /html/toneWorkshop/perfectGuitar.htm (10496 words)

	Alnico Magnets (Site not responding. Last check: 2007-10-08)
		Alnico magnets exhibit high residual inductions, are extremely resistant to elevated temperatures, and have relatively high energy products.
		Sintered Alnico magnets are manufactured using a powder metallurgy process which uses controlled atmosphere, high temperature sintering to produce near net shape parts.
		Alnico material can be easily demagnetized due to its low coercive force and must therefore be handled properly.
	www.eamagnetics.com /alnico/alnico.htm (379 words)

	Lansing Heritage Forums - The Great Alnico / Ferrite Debate
		The only change was that the 136A driver had its Alnico motor replaced with a ferrite motor to become the 136H.
		Alnico became available in limited quantities after a year or so, but at a much higher cost.
		This is not because ferrite is inherently superior to Alnico.
	www.audioheritage.org /vbulletin/showthread.php?t=4031 (838 words)

	Alnico Rod Magnets
		We stock Alnico Rod magnets in both Grade 5 and Grade 8.
		Alnico 8 magnets have a lower remanence, but a higher coercivity than Alnico 5 magnets.
		Alnico 5 rod magnets should have a length to diameter ratio of about 4 to 1 in order to avoid self-demagnetization.
	www.magnetsales.com /Alnico/Alrods.htm (96 words)

	Alnico Pot Magnets
		Alnico magnet material is an alloy made up of aluminum, nickel, cobalt and copper, with a rough cast surface which can be ground to close dimensions and to a bright metallic finish.
		Alnico is electrically conducted, can be E.D.M.'d to form holes and shapes, and can be plated.
		Alnico is available in a wide variety of shapes and sizes and is typically oriented magnetically through its length.
	www.magnetics.com /magmate2/alnicomagmat.htm (123 words)

	Guitar Player Speaker Shootout
		Alnico speakers are admired by vintage enthusiasts for their organic tonal properties.
		Alnico speakers (the word alnico is derived from the magnet's composition of aluminum, nickel, and cobalt) were standard issue in most amps up to the mid '60s.
		As alnico speakers are typically found in combo amps, we auditioned all of the speakers in the same 2x12 open-back pine cabinet.
	www.webervst.com /bt9908.htm (1572 words)

	diyAudio Forums - Alnico
		Alnico cost up to ten times as much as ceramic per unit.
		For all the discussion of alnico vs ferrite, I am just wondering what the cost really is, and how much more expensive it would make the speaker.
		However, I do remember that AlNiCo can be demagnetized far more easily than ferrite, which is why much taller magnets are required for the same purpose, even though they're stronger per unit of cross-sectional area.
	www.diyaudio.com /forums/showthread.php?postid=234872 (649 words)

	AlNiCo magnets,Cast Alnico5,Cast Alnico8,Aluminum Nickel Cobalt, permanent Magnet assembly, (Site not responding. Last check: 2007-10-08)
		Alnico magnet is very hard and brittle.Machining or drilling can not therefore be accomplished by ordinary methods.Holes are usually cored in at the foundry.Magnets are cast or sintered as closely as possible to required sized so that abrasive grinding to finish dimensions and tolerances is minimized
		Alnico 5 and Alnico 8 are anisotropic and exhibit a preferred direction of orientation,Magnetic orientation should be specified on your drawing when you send an order to us.
		Cast Alnico 5 is the most commonly used of all the cast Alnico's.It combines high indications with a high energy product of 5 MGOe or more and is used extensively in rotation machinery, communications, meters and instruments, sensing devices and holding applications.
	www.magnets.com.cn /in2f.htm (383 words)

	Alnico (Site not responding. Last check: 2007-10-08)
		Alnico is made by either casting or sintering a mixture of aluminum, nickel, cobalt, copper and titanium plus
		Common shapes of alnico magnets include rods and rectangular sticks.
		Tolerances are held to.005 inches and surface quality to 63 micro-inches.
	www.magneticarts.net /alnico.html (75 words)

	Alnico Button Magnets
		Powerful alnico magnets have convenient mounting holes and are available in three strengths.
		Alnico button magnet - lifts up to 1 1/2 lbs.
		Alnico button magnet - lifts up to 4 lbs.
	www.allmagnetics.com /hardware/alnicobutton.htm (98 words)

	A supplier of Alnico Permanent Magnets (Site not responding. Last check: 2007-10-08)
		Alnico magnetic material is an alloy of aluminum-nickel-cobalt which possesses an excellent temperature stability and high residual induction.
		Alnico magnets with complex shapes may be manufactured by casting.
		However, once the Alnico magnets are formed, it will be difficult to machine or drill them due to the hard and brittle mechanical properties of Alnico magnet.
	www.stanfordmaterials.com /al-magnt.html (126 words)

	Guitar Pickups and Custom Guitars—Lollar Custom Guitars & Pickups (206)463-9838
		Alnico 5 magnets provide wide dynamic range, increase amp tone response to picking pressure.
		Alnico 5 magnets give it more high-end overtones.
		Scatter wound wax potted coils with graded Alnico 5 magnets.
	www.lollarguitars.com /replacement_pickups.htm (854 words)

	AlNiCo,AlNiCo alloy,bonded AlNiCo manufacturer and AlNiCos,AlNiCo alloys,bonded AlNiCos supplier-- China Ningbo Ketian ...
		As a professional AlNiCos, AlNiCo alloys, bonded AlNiCos manufacturer, exporter, supplier and factory in China.--Ningbo Ketian Magnet Co,.Ltd. is shared by Ningbo Jintian Copper Group Co,.Ltd, and Ningbo Jintian Copper Group Co,.Ltd is one of the 500 top town enterprises in China, and the largest non-ferrous metallugy group in Zhejiang.
		It is mainly engaged in the research, development, produce and sales of NdFeB materials, AlNiCo, AlNiCo alloy, bonded AlNiCo.
		alnico, alnico magnet, alnico alloy, bonded alnico, alnico bar magnet, alnico horseshoe magnets, AlNiCo Magnets, Isotropy AINiCo alloy, Anisotropy AINiCo alloy, Isotropy AINiCo bonded magnet
	www.kt-magnet.com /n_AlNiCo.htm (259 words)

	Alnico - China Alnico Manufacturer, China Alnico Supplier
		Alnico describes a family of materials, which is derived from a common base composition comprising of aluminum, nickel, cobalt and iron with varying additions of other elements.
		Alnico alloys, which possess the lowest reversible temperature coefficient magnetism in permanent magnet materials, have excellent working temperature up to 600.
		High Nickel content of Alnico alloy result in good stability against corrosion and oxidation, this metallic composition is also a good electrical conductor.
	www.made-in-china.com /products/show/freemember/prod/DM5NjIN/mic/_Alnico.html (362 words)

	Lansing Heritage Forums - LE5-2 AlNiCo vs LE5-5 Ferrite
		Considering that most of the remaining cobalt producers were either behind the iron curtain, or tied up by the defence industry due to the strategic value of the metal, the net result was that cobalt was pretty much eliminated from the commercial market.
		Regarding JBL (and I assume the other speaker manufacturers), they were told by their magnet suppliers that Alnico magnets would not be available once the current stock was depleted.
		JBL continued the manufacture of Alnico compression drivers until 1981, when it was decided that the economies of switching to ferrite could no longer be ignored.
	www.audioheritage.org /vbulletin/showthread.php?t=2186 (1246 words)

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