Sintering ndi Casting AlNiCo Magnet

Sintering and Casting AlNiCo Magnet Featured Image

Kufotokozera Kwachidule:

Alnico maginito okhazikika ndi aloyi wopangidwa ndi aluminiyamu, faifi tambala, cobalt, chitsulo ndi kufufuza zinthu zitsulo.Ndiwo maginito oyambilira okhazikika omwe adapangidwa m'mbiri yakale, kuyambira m'ma 1930s.Panthawiyo, inali maginito amphamvu kwambiri okhala ndi kutentha pang'ono komanso kugwiritsidwa ntchito kwambiri pamakina okhazikika amagetsi.Pambuyo pa zaka za m'ma 1960, ndikubwera kwa maginito a ferrite ndi maginito osowa padziko lapansi, chiwerengero cha magalimoto a AlNiCo chinawonetsa kutsika, zomwe zikutanthauza kuti kugwiritsa ntchito maginito a AlNiCo okhazikika mu motors kwasinthidwa pang'onopang'ono.

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zida za maginito za Alnico sizingapangidwe ngati zida zamakina chifukwa cha mphamvu zochepa zamakina, kulimba kwakukulu, kulimba, komanso kusachita bwino.Kungopera pang'ono kapena EDM kungagwiritsidwe ntchito panthawi yokonza, njira zina monga zojambulajambula ndi makina ena sangathe kugwiritsidwa ntchito.

AlNiCo makamaka amapangidwa ndi kuponyera njira.Kuphatikiza apo, zitsulo za ufa zitha kugwiritsidwanso ntchito kupanga maginito a sintered, omwe ali ndi ntchito yotsika pang'ono.Cast AlNiCo imatha kusinthidwa kukhala makulidwe ndi mawonekedwe osiyanasiyana pomwe zinthu za AlNiCo zopangidwa sintered zimakhala zazing'ono.Ndipo ma workpieces a sintered AlNiCo ndi kulolerana bwino dimensional, katundu maginito ndi pang'ono m'munsi koma machinability ndi bwino.

Ubwino wa maginito AlNiCo ndi mkulu remanence (mpaka 1.35T), koma kusowa ndi kuti mphamvu yokakamiza ndi otsika kwambiri (nthawi zambiri zosakwana 160kA/m), ndipo demagnetization pamapindikira si liniya, kotero AlNiCo ndi maginito yosavuta. kukhala maginito komanso zosavuta kukhala demagnetized.Mukapanga maginito ndi kupanga zida, chidwi chapadera chiyenera kulipidwa ndipo maginito amayenera kukhazikika pasadakhale.Kuti mupewe kuwonongeka kosasinthika kosasinthika kapena kupotoza kwa kachulukidwe ka maginito, ndikoletsedwa kukhudzana ndi zinthu zilizonse za ferromagnetic mukamagwiritsa ntchito.

Cast AlNiCo maginito okhazikika ali otsika kwambiri chosinthika kutentha koyenera pakati okhazikika maginito zipangizo, kutentha ntchito akhoza kufika 525 ° C, ndi Curie kutentha kwa 860 ° C, amene ali okhazikika maginito chuma ndi apamwamba Curie mfundo.Chifukwa cha kukhazikika kwa kutentha komanso kukhazikika kwa ukalamba, maginito a AlNiCo amagwiritsidwa ntchito bwino pama motors, zida, zida zamagetsi, ndi makina amagetsi, ndi zina zambiri.

Mndandanda wa Gulu la AlNiCo Magnet

Giredi)	Amereka Standard	Br		Hcb		BH max		Kuchulukana	Chiyerekezo cha kutentha chosinthika	Chiyerekezo cha kutentha chosinthika	Curie kutentha kwa TC	Kutentha kwakukulu kwa ntchito TW	Ndemanga
Giredi)	Amereka Standard	mT	Gs	KA/m	Oe	KJ/m³	MGOe	6.9	％ /℃	％ /℃	℃	℃	Ndemanga
LN10	ALNICO3	600	6000	40	500	10	1.2	7.2	-0.03	-0.02	810	450	Isotropic
LNG13	ALNICO2	700	7000	48	600	12.8	1.6	7.3	-0.03	+ 0.02	810	450
LNGT18	ALNICO8	580	5800	100	1250	18	2.2	7.3	-0.025	+ 0.02	860	550
LNG37	ALNICO5	1200	12000	48	600	44	4.65	7.3	-0.02	+ 0.02	850	525	anisotropy
LNG40	ALNICO5	1250	12500	48	600	40	5	7.3	-0.02	+ 0.02	850	525
LNG44	ALNICO5	1250	12500	52	650	37	5.5	7.3	-0.02	+ 0.02	850	525
LNG52	Chithunzi cha ALNICO5DG	1300	13000	56	700	52	6.5	7.3	-0.02	+ 0.02	850	525
LNG60	ALNICO5-7	1350	13500	59	740	60	7.5	7.3	-0.02	+ 0.02	850	525
LNGT28	ALNICO6	1000	10000	57.6	720	28	3.5	7.3	-0.02	+ 0.03	850	525
Chithunzi cha LNGT36J	Chithunzi cha ALNICO8HC	700	7000	140	1750	36	4.5	7.3	-0.025	+ 0.02	860	550
LNGT38	ALNICO8	800	8000	110	1380	38	4.75	7.3	-0.025	+ 0.02	860	550
Chithunzi cha LNGT40	ALNICO8	820	8200	110	1380	40	5	7.3	-0.025	+ 0.02	860	550
Chithunzi cha LNGT60	ALNICO9	950	9500	110	1380	60	7.5	7.3	-0.025	+ 0.02	860	550
LNGT72	ALNICO9	1050	10500	112	1400	72	9	7.3	-0.025	+ 0.02	860	550

Mphamvu zakuthupi za AlNiCo
Parameter	AlNiCo
Kutentha kwa Curie (℃)	760-890
Kutentha kwakukulu kwa ntchito (℃)	450-600
Vickers hardness Hv(MPa)	520-630
Kachulukidwe (g/cm³)	6.9-7.3
Kukaniza (μΩ ·cm)	47-54
Kutentha Kokwanira kwa Br(%/℃)	0.025~-0.02
Kutentha kokwanira kwa iHc(%/℃)	0.01~0.03
Kulimba kwamphamvu (N/mm)	<100
Mphamvu yodutsa (N/mm)	300

Kugwiritsa ntchito

Maginito a AlNiCo ali ndi magwiridwe antchito komanso abwino kwambiri.Amagwiritsidwa ntchito kwambiri pamamita amadzi, masensa, machubu amagetsi, machubu oyendayenda, radar, ziwiya zoyamwa, zowongolera ndi zonyamula, ma motors, ma relay, zida zowongolera, majenereta, ma jigs, olandila, matelefoni, masiwichi a bango, okamba, zida zam'manja, sayansi. ndi zinthu zamaphunziro, etc.