Vim li cas cov ntaub ntawv aluminium cov khoom uas nyiam rau busebars piv rau tooj liab?
Txhuas muaj cov txiaj ntsig nqi, kwv yees li 50% pheej yig dua li tooj liab thaum muab 61% ntawm nws (35.5}}}}}} × 10⁶ s / m). Nws qhov qis qis dua (2.7 g / cmà vs {{8} g / cm³-teev hnyav nyob rau hauv loj faib hluav taws xob faib. Aluminium ib txwm ua ib txheej oxide txheej, txhim kho corrosion tsis kam nyob rau hauv ib puag ncig hnyav. Niaj hnub nimno plating Techniques (piv txwv li, tin lossis nyiaj txheej) mare ntawm kev sib chwv ntawm cov ntsiab lus sib txuas ntawm cov ntsiab lus sib txuas. Cov kev ntsuas kev ua neej tseem ceeb kuj nyiam txhuas vim muaj kev rov tsim kho dua tshiab (95% txuag hluav taws xob vs. thawj ntau lawm).
Yuav ua li cas qhov kev kub siab (piv txwv li, H14, T6) cuam tshuam rau kev ua yeeb yam ntawm Aluminium Busbar daim hlau?
Kev Sim Ntshav H14 (ib nrab-nyuaj) muaj peev xwm thiab lub zog rau lub pob tawb busbar duab, thaum T6 (daws cov tshuab ua kom muaj zog rau cov ntawv thov thauj khoom siab. Kev ua hluav taws xob txo qis me ntsis nrog cov cim hluav taws xob vim muaj kev sib txuam nrog ntau dua (piv txwv li, 603% I6 11} {o's 62%). Qoob nkees tsis kam txhim kho hauv T6 Tempers rau kev sib xyaw ua ke zoo li kev teeb tsa ev hluav taws xob. Cov neeg tsim khoom siv feem ntau siv O-Tem (Annealed) rau kev ua haujlwm hauv kev ua haujlwm hnyav ua ntej ua kom kawg. ASTM B247 qhia meej txog kev xaiv siab siab ua kom sov siab raws li cov tuab thiab ua haujlwm.
Dab tsi kev kho cov kev kho yog qhov tseem ceeb rau kev tswj kom muaj kev sib cuag tsis tshua muaj kev sib cuag nyob rau hauv txhuas busbars?
Chromate Confersion txheej (alodine) tiv thaiv oxide tsim thaum tswj hwm kev ua haujlwm. Electroless npib tag nrho (5-10μm) txo cov galvanic corrosion thaum sib txuas rau tooj liab lub chaw tso tseg. Kev txhuam plating nrog nyiaj nanoparticles (0.5-2μm) ua kom pom kev sib cuag nyob hauv qab 15 μωCω μω. Laser tu cov kev kho mob las kom tshem tawm cov kab mob organic zoo dua li siv tshuaj tsuag etching. Periebe STD . 635.
Yuav ua li cas Busbar cov neeg tsim qauv mitignate cov teeb meem nthuav dav hauv txhuas phaj teeb tsa?
Cov pob qij txha nthuav dav yog spaced txhua 3-4 meters (δl {2} {}}}}}}} /℃rau txhuas). Slotted mounting qhov pub 1.5-2mm tom qab txav ib 100℃kub kub nce. Tooj liab-Aluminium Bimetallic Transited Washer them nyiaj rau cov expansial expansion ntawm kev sib xyaw-hlau junctions. Finite elite tsom xam (fea) ua kom zoo dua clwmsplay tso kom tsis txhob muaj kev ntxhov siab. IEC 61439-1 Mandates Kev Kuaj Hluav Taws Xob Thermal (-40 Qib rau+105 degree) rau cov ntawv pov thawj.
Dab tsi yog qhov sib txawv tseem ceeb ntawm 1xxx, 6xxx, thiab 8xxx series alloys rau cov ntawv thov busizar?
1xxx series (e.g., 1060) provides the highest conductivity (>62% IACS) but lower tensile strength (70–110 MPa). 6xxx series (e.g., 6061) offers better mechanical properties (310 MPa yield) with moderate conductivity (43% IACS), suitable for structural busbars. 8xxx series (e.g., 8176) incorporates iron/silicon for improved creep resistance in high-temperature environments (>150 degree). Kev xaiv alloy muaj kev lag luam tawm ntawm kev ua haujlwm, lub zog, thiab tus nqi hluav taws xob-teev cov haujlwm thiab 6xxx nyiam hauv compact hloov mus. ASTM B317 / B317M Cov Lus Qhia Cov Lus Siv Tshuaj lom neeg txwv rau Busbar-qib alloys.
