Txhua pawg

MAGNETS INFORMATION

  • Keeb kwm yav dhau los thiab Keeb Kwm
  • tsim
  • Ntau Lawm Flow
  • Kev xaiv hlau nplaum
  • Kho deg
  • Hlau nplaum
  • Dimension Range, Loj thiab kam rau ua
  • Txoj cai kev nyab xeeb rau kev ua haujlwm ntawm tes

Keeb kwm yav dhau los thiab Keeb Kwm

Cov hlau nplaum tas mus li yog ib feem tseem ceeb ntawm lub neej niaj hnub no. Lawv pom nyob rau hauv lossis siv los tsim yuav luag txhua qhov kev yooj yim niaj hnub no. Thawj cov hlau nplaum ruaj khov tau tsim los ntawm cov pob zeb uas tshwm sim los ntawm cov pob zeb hu ua lodestones. Cov pob zeb no yog thawj zaug kawm dhau 2500 xyoo dhau los los ntawm Suav thiab tom qab ntawd los ntawm Greeks, uas tau txais lub pob zeb los ntawm lub xeev Magnetes, uas cov khoom tau txais nws lub npe. Txij thaum ntawd los, cov khoom ntawm cov khoom siv hlau nplaum tau raug kho kom zoo dua qub thiab niaj hnub nim no cov khoom siv hlau nplaum ruaj khov muaj ntau pua lub sij hawm muaj zog dua li cov hlau nplaum ntawm ancient sij hawm. Lub sij hawm mus tas li hlau nplaum los ntawm lub peev xwm ntawm cov hlau nplaum los tuav ib qho kev sib nqus sib nqus tom qab nws raug tshem tawm ntawm cov khoom siv hlau nplaum. Cov khoom siv zoo li no yuav yog lwm cov hlau nplaum ruaj khov, cov hlau nplaum electromagnetic lossis coils ntawm cov hlau uas luv luv them nrog hluav taws xob. Lawv lub peev xwm los tuav cov nqi sib nqus ua rau lawv muaj txiaj ntsig zoo rau kev tuav cov khoom hauv qhov chaw, hloov hluav taws xob mus rau lub zog ntawm lub zog thiab rov ua dua (lub cev muaj zog thiab lub tshuab hluav taws xob), lossis cuam tshuam rau lwm yam khoom coj los ze lawv.


« rov qab mus rau saum

tsim

Superior magnetic kev ua tau zoo yog kev ua haujlwm ntawm kev sib nqus zoo dua qub. Rau cov neeg muas zaub uas xav tau kev pab tsim los yog complex circuit designs, QM os pab neeg ntawm kev paub txog daim ntawv thov engineers thiab paub txog kev muag khoom engineers yog nyob ntawm koj qhov kev pabcuam. QM engineers ua hauj lwm nrog cov neeg muas zaub los txhim kho los yog validate uas twb muaj lawm designs nrog rau tsim tshiab designs uas tsim tshwj xeeb sib nqus teebmeem. QM tau tsim patented magnetic designs uas xa cov tsis tshua muaj zog, niaj hnub los yog tshwj xeeb zoo li cov magnetic teb uas feem ntau hloov bulky thiab inefficient electro-magnet thiab mus tas li hlau nplaum tsim. Cov neeg siv khoom ntseeg siab thaum nws coj lub tswv yim nyuaj lossis lub tswv yim tshiab uas QM yuav ua tau raws li qhov kev sib tw los ntawm kev kos duab los ntawm 10 xyoo ntawm kev tshaj lij magnetic pov thawj. QM muaj cov neeg, cov khoom thiab cov cuab yeej siv hlau nplaum ua haujlwm.


« rov qab mus rau saum

Ntau Lawm Flow

QM PRODUCTION FLOW CHART


« rov qab mus rau saum

Kev xaiv hlau nplaum

Kev xaiv hlau nplaum rau txhua daim ntawv thov yuav tsum xav txog tag nrho cov hlau nplaum hluav taws xob thiab ib puag ncig. Qhov twg Alnico yog qhov tsim nyog, cov hlau nplaum loj tuaj yeem raug txo kom tsawg yog tias nws tuaj yeem ua hlau nplaum tom qab sib dhos rau hauv cov khoom sib nqus. Yog tias siv ywj pheej ntawm lwm cov khoom siv hluav taws xob, xws li hauv kev siv kev ruaj ntseg, qhov ntev ntawm txoj kab uas hla ntawm qhov sib piv (xws li permeance coefficient) yuav tsum zoo txaus los ua kom cov hlau nplaum ua haujlwm saum lub hauv caug hauv nws qhov thib ob quadrant demagnetization nkhaus. Rau cov ntawv thov tseem ceeb, Alnico hlau nplaum yuav raug ntsuas raws li qhov tsim nyog siv flux ceev tus nqi.

Ib qho los ntawm cov khoom siv qis qis yog qhov nkag siab zoo rau cov teebmeem demagnetizing vim yog sab nraud magnetic teb, poob siab, thiab daim ntawv thov kub. Rau cov ntawv thov tseem ceeb, Alnico hlau nplaum tuaj yeem ua kom sov sov kom txo tau cov teebmeem no Muaj plaub chav kawm ntawm cov hlau nplaum niaj hnub ua lag luam, txhua tus raws li lawv cov khoom muaj pes tsawg leeg. Hauv txhua chav kawm yog ib tsev neeg ntawm cov qib nrog lawv tus kheej cov khoom sib nqus. Cov chav kawm dav dav no yog:

  • Neodymium Hlau Boron
  • Samarium Cobalt: koj puas xav tau ntau tus thwjtim?
  • tej hub
  • Alnico

NdFeB thiab SmCo yog cov npe hu ua Rare Earth hlau nplaum vim tias lawv yog ob qho tib si tsim los ntawm cov ntaub ntawv los ntawm pawg Rare Earth ntawm cov ntsiab lus. Neodymium Iron Boron (feem ntau muaj pes tsawg leeg Nd2Fe14B, feem ntau abbreviated rau NdFeB) yog qhov kev lag luam tsis ntev los no ntxiv rau tsev neeg ntawm cov khoom siv hlau nplaum niaj hnub no. Ntawm chav tsev kub, NdFeB hlau nplaum nthuav tawm cov khoom zoo tshaj plaws ntawm txhua yam khoom hlau nplaum. Samarium Cobalt yog tsim nyob rau hauv ob lub compositions: Sm1Co5 thiab Sm2Co17 - feem ntau hu ua SmCo 1:5 los yog SmCo 2:17 hom. 2: 17 hom, nrog cov txiaj ntsig Hci siab dua, muaj kev ruaj ntseg zoo dua li 1: 5 hom. Ceramic, tseem hu ua Ferrite, hlau nplaum (cov khoom siv dav dav BaFe2O3 lossis SrFe2O3) tau ua lag luam txij li xyoo 1950s thiab txuas ntxiv siv niaj hnub no vim lawv cov nqi qis. Ib daim ntawv tshwj xeeb ntawm Ceramic hlau nplaum yog "Flexible" cov khoom, ua los ntawm kev sib txuas Ceramic hmoov nyob rau hauv ib tug saj zawg zog binder. Alnico hlau nplaum (cov khoom siv dav dav Al-Ni-Co) tau ua lag luam hauv xyoo 1930s thiab tseem siv ntau niaj hnub no.

Cov ntaub ntawv no nthuav dav ntau yam khoom uas ua kom haum rau ntau yam kev thov. Cov hauv qab no yog npaj los muab cov lus dav dav tab sis qhov ua tau zoo ntawm cov ntsiab lus uas yuav tsum tau txiav txim siab hauv kev xaiv cov khoom tsim nyog, qib, cov duab, thiab qhov loj ntawm cov hlau nplaum rau ib daim ntawv thov tshwj xeeb. Daim duab hauv qab no qhia txog qhov tseem ceeb ntawm cov yam ntxwv tseem ceeb rau cov qib xaiv ntawm ntau yam ntaub ntawv rau kev sib piv. Cov txiaj ntsig no yuav raug tham kom ntxaws hauv ntu hauv qab no.

Sib piv cov khoom siv hlau nplaum

khoom
qib
Br
Hc
Hci
BH max
T max (Deg c) *
NdFeB
39H
12,800
12,300
21,000
40
150
SmCo
26
10,500
9,200
10,000
26
300
NdFeB
B10 N
6,800
5,780
10,300
10
150
Alnico
5
12,500
640
640
5.5
540
tej hub
8
3,900
3,200
3,250
3.5
300
Saj zawg zog
1
1,500
1,380
1,380
0.6
100

* T max (qhov siab tshaj plaws ua haujlwm kub) yog rau kev siv xwb. Qhov siab tshaj plaws kev ua haujlwm kub ntawm ib qho hlau nplaum yog nyob ntawm lub voj voog uas cov hlau nplaum ua haujlwm hauv.


« rov qab mus rau saum

Kho deg

Cov hlau nplaum yuav tsum tau coated nyob ntawm daim ntawv thov uas lawv xav tau. Txheej hlau nplaum txhim kho qhov zoo li, tiv thaiv corrosion, tiv thaiv kev hnav thiab tej zaum yuav tsim nyog rau kev siv hauv chav huv huv.
Samarium Cobalt, Alnico cov ntaub ntawv yog corrosion resistant, thiab tsis tas yuav tsum tau coated tiv thaiv corrosion. Alnico tau yooj yim plated rau cov khoom zoo nkauj.
NdFeB hlau nplaum tshwj xeeb yog raug rau corrosion thiab feem ntau tiv thaiv txoj kev no. Muaj ntau yam txheej txheej tsim nyog rau cov hlau nplaum ruaj khov, Tsis yog txhua hom txheej txheej yuav haum rau txhua yam khoom siv los yog hlau nplaum geometry, thiab qhov kev xaiv zaum kawg yuav nyob ntawm daim ntawv thov thiab ib puag ncig. Ib qho kev xaiv ntxiv yog los tsev cov hlau nplaum nyob rau hauv ib qho chaw sab nraud kom tiv thaiv corrosion thiab puas.

Muaj Coatings

Ua rface

Txheej

Thickness (Micros)

xim

Kuj

Hla


1

Nyiaj Tswb

Kev tiv thaiv ib ntus

npib tsib xee

Ni+Ni

10-20

Kaj Ntug Nyiaj

Zoo heev tiv thaiv Humidity

Ni+Cu+Ni

zinc

Zn

8-20

Kaj Ntug

Zoo tiv thaiv ntsev tsuag

C-Zn

Xim Xim

Zoo heev tiv thaiv ntsev tsuag

Yajthem

Ni+Cu+Sn

15-20

nyiaj

Superior tiv thaiv humidity

kub

Ni+Cu+Au

10-20

kub

Superior tiv thaiv humidity

Tooj

Ni+Cu

10-20

kub

Kev tiv thaiv ib ntus

Epoxy

Epoxy

15-25

Dub, Liab, Grey

Zoo heev tiv thaiv av
Ntsev Tsuag

Ni + Cu + Epoxy

Zn + Epoxy

tshuaj

Ni

10-20

Nyiaj Tswb

Zoo heev tiv thaiv av

Parylene

Parylene

5-20

Grey

Zoo heev tiv thaiv av, ntsev tsuag. Superior tiv thaiv Solvents, Gases, Fungi thiab Bacteria.
 FDA pom zoo.


« rov qab mus rau saum

Hlau nplaum

Cov hlau nplaum tas mus li muab nyob rau hauv ob qho xwm txheej, Magnetized lossis tsis muaj hlau nplaum, feem ntau tsis cim nws qhov polarity. Yog tias tus neeg siv xav tau, peb tuaj yeem kos lub polarity los ntawm kev pom zoo rau. Thaum pacing qhov kev txiav txim, tus neeg siv yuav tsum qhia txog cov khoom siv thiab yog tias qhov cim ntawm polarity tsim nyog.

Qhov chaw magnetization ntawm cov hlau nplaum tas mus li muaj feem xyuam nrog cov khoom siv sib nqus mus tas li thiab nws qhov kev quab yuam intrinsic. Yog tias cov hlau nplaum xav tau magnetization thiab demagnetization, thov hu rau peb thiab thov kev txhawb nqa txheej txheem.

Muaj ob txoj hauv kev los tsim cov hlau nplaum: DC teb thiab mem tes magnetic teb.

Muaj peb txoj hauv kev los demagnetize cov hlau nplaum: demagnetization los ntawm tshav kub yog txheej txheem tshwj xeeb. demagnetization hauv AC teb. Demagnetization hauv DC teb. Qhov no nug kom muaj zog magnetic teb thiab siab demagnetization txawj.

Geometry puab thiab magnetization kev taw qhia ntawm cov hlau nplaum tas mus li: nyob rau hauv txoj cai, peb tsim cov hlau nplaum ruaj khov nyob rau hauv ntau yam duab. Feem ntau, nws muaj xws li thaiv, disc, nplhaib, ntu thiab lwm yam. Cov lus piav qhia ntawm cov kev taw qhia magnetization yog hauv qab no:

Cov lus qhia ntawm Magnetization
(Daim duab qhia cov lus qhia ntawm Manetization)

taw qhia los ntawm thickness

axially taw qhia

axially oriented hauv ntu

oriented tom qab multipole ntawm ib lub ntsej muag

multipole taw qhia nyob rau hauv ntu ntawm sab nraud txoj kab uas hla *

multipole taw qhia nyob rau hauv ntu ntawm ib lub ntsej muag

radially taw qhia *

taw qhia los ntawm txoj kab uas hla *

multipole taw qhia nyob rau hauv ntu ntawm sab hauv kab *

tag nrho cov khoom muaj xws li isotropic lossis anisotropic khoom

* Tsuas yog muaj nyob hauv isotropic thiab qee yam khoom siv anisotropic nkaus xwb


radially taw qhia

diametrical taw qhia


« rov qab mus rau saum

Dimension Range, Loj thiab kam rau ua

Tsuas yog rau qhov loj me nyob rau hauv cov kev taw qhia ntawm magnetization, qhov siab tshaj plaws dimension ntawm cov hlau nplaum mus tas li tsis tshaj 50mm, uas yog txwv los ntawm kev taw qhia teb thiab sintering khoom. Qhov loj me nyob rau hauv cov kev taw qhia unmagnetization yog mus txog 100mm.

Qhov kam rau ua feem ntau yog +/- 0.05 -- +/- 0.10mm.

Lus Cim: Lwm cov duab tuaj yeem tsim tau raws li tus neeg siv khoom tus qauv lossis xim xiav

nplhaib
Tawm sab hauv
Sab Hauv
thickness
Maximum
100.00mm
95.00m
50.00mm
Yam tsawg kawg nkaus
3.80mm
1.20mm
0.50mm
Disc
inch
thickness
Maximum
100.00mm
50.00mm
Yam tsawg kawg nkaus
1.20mm
0.50mm
Thaiv
Length
dav
thickness
Maximum 100.00mm
95.00mm
50.00mm
Yam tsawg kawg nkaus 3.80mm
1.20mm
0.50mm
Arc-segment
Sab nraud Radius
Sab hauv Radius
thickness
Maximum 75mm
65mm
50mm
Yam tsawg kawg nkaus 1.9mm
0.6mm
0.5mm



« rov qab mus rau saum

Txoj cai kev nyab xeeb rau kev ua haujlwm ntawm tes

1. Cov hlau nplaum ruaj khov nrog cov hlau nplaum muaj zog nyiam cov hlau thiab lwm yam hlau nplaum nyob ib puag ncig lawv zoo heev. Raws li qhov tshwm sim, tus neeg siv phau ntawv yuav tsum tau ceev faj kom tsis txhob muaj kev puas tsuaj. Vim yog lub zog sib nqus, cov hlau nplaum loj nyob ze rau lawv yuav muaj kev pheej hmoo ntawm kev puas tsuaj. Tib neeg ib txwm ua cov hlau nplaum sib cais los yog los ntawm clamps. Hauv qhov no, peb yuav tsum tau ntim cov hnab looj tes tiv thaiv hauv kev ua haujlwm.

2. Nyob rau hauv qhov xwm txheej no ntawm cov hlau nplaum muaj zog, txhua yam khoom siv hluav taws xob zoo thiab ntsuas ntsuas yuav raug hloov lossis puas. Thov saib nws tias lub khoos phis tawj, tso saib thiab cov xov xwm sib nqus, piv txwv li cov hlau nplaum sib nqus, daim kab xev sib nqus thiab daim kab xev video thiab lwm yam, nyob deb ntawm cov khoom sib nqus, hais deb tshaj 2m.

3. Kev sib tsoo ntawm lub zog uas nyiam ntawm ob lub hlau nplaum ruaj khov yuav ua rau muaj qhov ci ntsa iab loj heev. Yog li ntawd, cov khoom tawg los yog tawg yuav tsum tsis txhob muab tso rau ntawm lawv.

4. Thaum cov hlau nplaum raug hydrogen, nws yog txwv tsis pub siv cov hlau nplaum ruaj khov yam tsis muaj kev tiv thaiv txheej. Yog vim li cas yog tias sorption ntawm hydrogen yuav rhuav tshem cov microstructure ntawm cov hlau nplaum thiab ua rau lub deconstruction ntawm cov hlau nplaum. Tib txoj kev los tiv thaiv cov hlau nplaum zoo yog muab cov hlau nplaum kaw rau hauv ib rooj plaub thiab kaw nws.


« rov qab mus rau saum