1. Cov tshuaj rau lub discoloration ntawmdaim kab xev
(1) Tswj cov concentration ntawm cov kua qaub thaum lub sij hawm pickling.Nyob rau hauv cov ntaub ntawv ntawm ntxuav tawm cov oxide txheej ntawm qhov chaw ntawm lub annealed tooj liab sawb, ib tug siab acid concentration tsis muaj kev nkag siab.Ntawm qhov tsis sib xws, yog tias cov concentration siab dhau lawm, cov kua qaub seem uas txuas rau saum npoo ntawm cov tooj liab tsis yooj yim los ntxuav, thiab cov pa phem ntawm cov dej ntxuav tau nrawm dua, ua rau muaj cov kua qaub ntau dhau ntawm cov kua qaub nyob hauv cov dej ntxuav, uas ua rau cov tooj liab sawb tom qab ntxuav ntau dua tuaj yeem hloov xim.Yog li ntawd, thaum txiav txim siab qhov concentration ntawm cov tshuaj pickling, cov hauv qab no yuav tsum tau ua raws li cov hauv paus ntsiab lus: nyob rau hauv lub hauv paus ntsiab lus uas oxide txheej nyob rau saum npoo ntawm tooj liab sawb yuav tsum tau ntxuav, lub concentration yuav tsum tau txo kom ntau li ntau tau.
(2) Tswj cov conductivity ntawm cov dej ntshiab.Tswj cov dej ntshiab, uas yog, tswj cov ntsiab lus ntawm cov khoom tsis zoo xws li chloride ions hauv dej ntshiab.Feem ntau, nws muaj kev ruaj ntseg los tswj cov conductivity qis dua 50uS / cm.
(3) Tswj cov conductivity ntawm cov dej kub ntxuav thiab passivating tus neeg sawv cev.Qhov nce ntawm conductivity ntawm kub ntxuav dej thiab passivator tsuas yog los ntawm cov residual acid coj los ntawm txoj siv tooj liab khiav.Yog li ntawd, nyob rau hauv cov xwm txheej ntawm kev ua kom zoo ntawm cov dej ntshiab uas siv los ntxuav, cov conductivity yog tswj, uas yog, cov kua qaub seem yog tswj.Raws li ntau qhov kev sim, nws muaj kev nyab xeeb los tswj cov dej kub ntxuav thiab passivator kom qis dua 200uS / cm, feem.
(4) xyuas kom meej tias cov sawb tooj liab yog qhuav.Kev sib khi ib nrab yog ua los ntawm lub qhov hluav taws xob coiling ntawm lub tshuab cua cushion rauv, thiab lub tshuab dehumidifier thiab lub tshuab cua txias yog siv rau hauv lub zos sealing ntaus ntawv los tswj cov av noo thiab kub thaum lub sij hawm coiling ntawm tooj liab sawb nyob rau hauv ib tug tej yam kev mob.
(5) Passivation siv tus neeg sawv cev passivating.Tus neeg sawv cev passivating siv hauv peb lub Hoobkas yog: benzotriazole, uas yog BTA (molecular formula: C6H5N3) ua tus neeg sawv cev passivating.Kev xyaum tau ua pov thawj tias nws yog ib qho yooj yim, kev lag luam thiab kev ua haujlwm passivator.Thaum cov kab xev tooj liab dhau los ntawm BTA cov tshuaj, cov oxide zaj duab xis ntawm qhov chaw reacts nrog BTA los ua ib qho nyuaj, uas tiv thaiv cov tooj liab substrate.
2. Kev daws ntawm tooj liab sawb shear indentation
Txhawm rau tiv thaiv qhov tsis sib xws ntawm cov npoo shearing, nws yog ib qho tsim nyog yuav tsum xaiv qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm cov riam ncig thiab cov roj hmab tev nplhaib raws li cov thickness thiab hardness ntawm cov sawb;lub hardness ntawm cov roj hmab tev nplhaib ua tau raws li qhov yuav tsum tau ntawm cov sawb txiav;Thaum qhov dav ntawm lub sawb me me, lub thickness ntawm cov riam ncig yuav tsum raug xaiv kom tsim nyog thiab qhov dav ntawm cov roj hmab rub lub nplhaib yuav tsum tau nce ntxiv.
Post lub sij hawm: Lub Xya hli ntuj-21-2022