Tooj liab ntawv ci yog cov khoom siv tooj liab heev. Nws tuaj yeem faib los ntawm cov txheej txheem ua ob hom: rolled (ra) Tooj liab ntawv ci thiab electrolytic (ED) Tooj Ntawv Ntawv Nyiaj. Tooj liab ntawv muaj hluav taws xob ntawv muaj hluav taws xob zoo thiab thermal ua haujlwm, thiab muaj cov cuab yeej ntawm kev thaiv hluav taws xob thiab cov paib hlau. Tooj liab ntawv ci yog siv hauv cov khoom loj hauv kev ua cov khoom siv hluav taws xob ua haujlwm. Nrog kev nce qib ntawm kev tsim khoom niaj hnub, qhov thov rau thinner, me dua thiab ntau cov khoom siv hluav taws xob hluav taws xob tau ua rau cov ntawv siv dav dav rau tooj liab.
Rolled Tooj Liab Ntawv Nyiaj yog xa mus rau raws li ra tooj liab ntawv ci. Nws yog cov khoom lag luam tooj liab uas yog tsim los ntawm lub cev dov. Vim nws cov txheej txheem tsim qauv, ra tooj liab ntawv ci muaj cov qauv sib txawv sab hauv. Thiab nws tuaj yeem hloov kho kom mos thiab nyuaj siab los ntawm kev siv cov txheej txheem anealing. Ra tooj liab ntawv yog siv rau hauv kev tsim cov khoom lag luam ntawm cov khoom hluav taws xob siab, tshwj xeeb tshaj yog cov uas xav tau qib ntawm cov khoom siv.
Electrolytic tooj liab ntawv tau raug xa mus ua ed tooj liab ntawv ci. Nws yog tooj liab cov khoom siv uas yog tsim los ntawm cov tshuaj lom neeg tshuaj lom neeg tshuaj lom neeg. Vim yog cov xwm txheej ntawm cov txheej txheem ntau lawm, electrolytic tooj liab ntawv nyiaj muaj ib tug qauv sau sab hauv. Cov txheej txheem ntau lawm ntawm electrolytic tooj liab ntawv yog qhov yooj yim thiab yog siv hauv cov txheej txheem yooj yim, xws li Circuit Coffic thiab Lithium Roj teeb cov hluav taws xob tsis zoo.
Yog tias siv cov ntawv ci thiab electrolytic tooj liab ntawv muab lawv cov kev zoo thiab qhov tsis zoo nyob hauv qab no:
Ra tooj liab ntawv ci yog purer ua cov ntsiab lus tooj liab;
Ra tooj liab ntawv muaj qhov ua tau zoo dua cov khoom lag luam electrolytic tooj liab ntawm cov khoom siv lub cev;
Muaj tsawg qhov sib txawv ntawm ob hom tooj liab ntawv ci hauv cov nqe lus ntawm cov tshuaj lom neeg;
Nyob rau hauv cov nqe lus ntawm tus nqi, ed tooj liab ntawv ci yog yooj yim rau cov tsim muaj ntau vim yog nws qhov yooj yim kev tsim khoom lag luam thiab tsis tshua muaj nqi ntau dua li calendered tooj liab ntawv.
Feem ntau, ra tooj liab ntawv ci yog siv nyob rau thaum ntxov cov khoom lag luam, tab sis raws li kev tsim khoom lag luam ua kom muaj txiaj ntsig ntau dua, ed tooj liab cov nqi yuav ua kom txo tus nqi.
Tooj liab ntawv ntim muaj cov hluav taws xob zoo thiab thermal ua haujlwm, thiab nws kuj muaj cov kev tiv thaiv hluav taws xob zoo rau hluav taws xob thiab cov paib hlau. Yog li ntawd, nws feem ntau yog siv los ua nruab nrab rau hluav taws xob lossis cov khoom siv hluav taws xob hauv cov hluav taws xob thiab cov khoom siv hluav taws xob rau qee cov hluav taws xob. Vim yog cov khoom siv thiab lub cev ntawm tooj liab thiab tooj liab alloys, lawv kuj tau siv nyob rau hauv cov kws kho kom zoo nkauj thiab lwm yam kev lag luam.
Cov khoom siv raw rau tooj liab ntawv ci yog tus tooj ntshiab, tab sis cov ntaub ntawv nyoos muaj nyob rau hauv cov xeev sib txawv vim muaj cov txheej txheem sib txawv. Kov tooj liab ntawv ci yog feem ntau yog tsim los ntawm cov ntawv qhia hauv electrolytic tooj liab cov ntawv uas tau melted thiab mam li dov; Electrolytic Tooj Liab yuav tsum tso cov ntaub ntawv nyoos rau hauv sulfuric acid tov rau cov tooj liab lossis tooj liab kom zoo dua li cov sulfuric acid.
Tooj liab ions muaj cov huab cua heev nyob rau hauv huab cua thiab tuaj yeem yooj yim hnov mob nrog oxygen ions hauv huab cua los ua tooj liab oxide. Peb kho cov npoo ntawm tooj liab ntawv ci nrog chav ntsuas kub los tiv thaiv cov txheej txheem ntau lawm, tab sis qhov no tsuas qeeb lub sijhawm thaum lub tooj liab ntawv yog oxidized. Yog li, nws pom zoo kom siv cov ntawv ci me sai li sai tau tom qab tsis paub. Thiab khaws cov ntawv ntim tsis siv nyob rau hauv qhuav, lub teeb pov thawj qhov chaw kom deb ntawm cov roj cua. Cov pom zoo cia kub rau tooj liab yog txog 25 degrees Celsius thiab cov av noo yuav tsum tsis pub tshaj 70%.
Tooj liab ntawv nyiaj tsis yog tsuas yog cov khoom siv ua haujlwm, tab sis kuj yog cov khoom siv muaj txiaj ntsig zoo tshaj plaws. Tooj liab ntawv muaj zog muaj hluav taws xob zoo dua thiab thermal ua haujlwm tshaj li cov ntaub ntawv metallic zoo tib yam.
Tooj liab ntawv ci feem ntau yog cov khoom siv tooj liab, thiab cov nplaum nplaum kuj tseem tuaj yeem ua tau los ntawm kev muab hmoov ua ke ntawm cov nplaum. Yog li ntawd, koj yuav tsum paub meej tias koj xav tau ib leeg swm rau tooj liab ntawv nyiaj los yog ob tog ntawv cender ntawm lub sij hawm yuav khoom.
Tooj liab ntawv ci nrog me deg oxidation tuaj yeem tshem tawm nrog cawv cawv. Yog tias nws yog lub sijhawm ntev oxidation lossis cov cheeb tsam loj oxidation, nws yuav tsum tau muab tshem tawm los ntawm kev ntxuav nrog sulfuric acid acr Yaus.
Kev sib txuas hlau muaj tooj liab cov kab ntawv ci tshwj xeeb rau cov iav tsuas yog siv yooj yim heev.
Hauv txoj kev xav, yog; Txawm li cas los xij, txij li cov ntaub ntawv melting tsis tau ua nyob rau hauv ib puag ncig lub tshuab nqus tsev thiab tsim tau rau cov kab sib txawv thiab cov txheej txheem sib txawv hauv cov khoom siv thaum lub sijhawm sib sau ua ke. Raws li qhov tshwm sim, txawm tias cov ntaub ntawv muaj pes tsawg leeg yog tib yam, muaj yuav muaj xim sib txawv hauv cov khoom ntawm cov chaw tsim khoom sib txawv.
Qee zaum, txawm tias rau high-purity tooj liab ntawv ci, cov npoo xim ntawm tooj liab cov khoom lag luam uas tsim los ntawm cov chaw tsim khoom sib txawv tuaj yeem sib txawv hauv qhov tsaus ntuj. Qee tus neeg ntseeg tias cov ntawv dub liab tooj liab muaj ntau dua kev coj dawb huv. Txawm li cas los xij, qhov no tsis yog qhov tseeb vim hais tias, ntxiv rau cov ntsiab lus tooj liab, cov saum npoo smept ntawm lub tooj liab cov khoom pom los ntawm tib neeg lub qhov muag. Piv txwv li, tooj liab ntawv ci nrog lub siab du yuav muaj kev cuam tshuam zoo dua, ua rau cov xim zoo sib xws, thiab qee zaum txawm tias whitish. Nyob rau hauv kev muaj tiag, qhov no yog ib qho tshwm sim ib txwm rau tooj liab ntawv ci nrog qhov zoo smoothness, qhia tau tias qhov saum npoo yog du thiab muaj tsawg heev thiab muaj tsawg ntxhib.
Electrolytic ntawv nyiaj yog tsim kev siv cov qauv tshuaj, yog li cov khoom tiav khoom yog cov roj dawb. Hauv kev sib piv, dov tooj liab ntawv ci yog tsim cov txheej txheem dov, thiab lubricating roj, thiab tuaj yeem nyob ntawm qhov chaw thiab sab hauv cov khoom tiav. Yog li no, tom qab nto tu thiab degreing cov txheej txheem yog qhov tsim nyog yuav tsum tshem cov roj seem. Yog tias cov seem no tsis raug tshem tawm, lawv tuaj yeem cuam tshuam cov tev tiv thaiv ntawm cov khoom tiav tau cov khoom tiav. Tshwj xeeb thaum lub sijhawm muaj kev nyob ntawm cov roj hauv cov roj hauv cov roj hauv cov roj.
Qhov siab dua rau saum npoo du ntawm tooj liab ntawv ci, ntau dua qhov kev xav, uas yuav tshwm sim whitish rau lub qhov muag liab qab. Siab dua nto smanness kuj me ntsis txhim kho cov khoom hluav taws xob thiab thermal conductivity. Yog tias txheej txheem txheej txheej yuav tsum tau tom qab, nws raug nquahu kom xaiv cov txheej txheej dej kom ntau li ntau tau. Cov roj txheej txheej, vim lawv cov qauv loj dua molecular, feem ntau yuav tev tawm.
Tom qab anealing txheej txheem, qhov hloov tag nrho thiab cov yas ntawm tooj liab ntawv ci tau txhim kho, thaum nws tiv thaiv tau, txhim kho nws qhov hluav taws xob conduction. Txawm li cas los xij, cov khoom siv annealed yog cov ntau tau rau cov khawb thiab dents thaum nws los rau hauv kev sib cuag nrog cov khoom nyuaj. Tsis tas li ntawd, kev cheev me ntsis thaum lub sijhawm tsim khoom thiab kev xa khoom tuaj yeem ua rau cov khoom siv los deform thiab tsim cov embossing. Yog li, xav tau kev saib xyuas ntxiv thaum lub sijhawm ua haujlwm tom ntej thiab kev ua tiav.
Vim tias cov qauv kev kawm thoob ntiaj teb tam sim no tsis muaj kev sim ua kom raug thiab cov qauv kev sib txuam, nws yog qhov nyuaj rau txhais cov khoom muag muag lossis tawv tawv ntawm tooj liab ntawv ci. Vim tias cov xwm txheej tooj liab ua lag luam siv cov tuam txhab muag khoom thiab elongation kom pom cov khoom muag lossis lub xeev nyuaj, ntau dua li cov khoom siv nyuaj.
Annealed Tooj Liab Ntawv Nyiaj (Lub Xeev Mos):
- Qis dua hardness thiab siab dua ductility: Cov txheej txheem yooj yim thiab daim ntawv.
- Zoo hluav taws xob conductivity: Tus txheej txheem anealing txo cov ciaj ciam av thiab qhov tsis xws luag.
- Zoo nto zoo: Haum raws li substrate rau luam tawm cov laug cam cov laug cam (PCBs).
Semi-tawv tooj liab ntawv nyiaj:
- Intermediat Hardness: Muaj qee lub peev xwm tuav pov hwm.
- Haum rau cov ntawv thov yuav tsum tau ua qee lub zog thiab qhov dav: Siv hauv qee hom hluav taws xob hauv hluav taws xob.
Tawv tooj liab ntawv nyiaj:
- Siab dua: Tsis yog yooj yim deformed, haum rau cov ntawv thov tau xav ntsoov kho qhov ntev.
- Qis dua ductility: Yuav tsum tau saib xyuas ntau dua thaum ua tiav.
Lub zog tensile thiab elongation ntawm tooj liab ntawv ci yog ob qho tseem ceeb ntawm lub cev kev ua tau zoo uas muaj qee qhov kev sib raug zoo thiab kev ntseeg siab ntawm tus tooj liab ntawv ci. Tensile lub zog yog hais txog kev muaj peev xwm ntawm tooj liab ntawv los tiv thaiv tawg hauv qab lub zog, feem ntau yog qhia hauv MegapStascals (MPA). Elongation yog hais txog lub peev xwm ntawm cov khoom siv kom yauv yooj yim rau cov khoom siv tau yooj yim thaum lub sijhawm ncab, qhia raws li feem pua.
Lub zog tensile thiab elongation ntawm tooj liab ntawv ci yog pawg yog pawg los ntawm ob lub thickness thiab lis loj loj. Txhawm rau piav qhia qhov loj me no, qhov seem tuab tuab-rau-grain loj piv (T / D) yuav tsum tau qhia ua kev sib piv parameter. Lub zog tensile sib txawv sib txawv nyob rau txawv thickness-rau-grongation loj ratio ranges, thaum thickness txo thaum thickness txo thaum thickness-rau-grain loj piv yog tas li.