Cov Kev Cai Huv Si rau Dawb Corundum hauv Cov Khoom Siv Ua Khoom Noj
Thaum tsib teev sawv ntxov, Tus Thawj Coj Li ntawm lub chaw ua zaub mov canning tau hais lus thaum nws thawb lub qhov rooj ua haujlwm, muaj ntxhiab tsw ntawm cov tshuaj tua kab mob ozone ntaus nws. Ib yam li niaj zaus, nws taug kev mus rau lub tshuab juicer tshiab, nws cov ntiv tes txhuam cov hlau stainless sab hauv, uas zoo li du zoo li daim iav. "Old Wang, cov khoom siv abrasive tshiab no zoo heev! Zoo dua li cov khoom kawg. Tsis muaj ib qho burr rau kov!" Tus Neeg Ua Haujlwm Old Wang luag ntxhi. "Qhov tseeb, cov grooves tsim los ntawm 'hmoov sapphire dawb' no ua rau cov txiv hmab txiv ntoo seem du zoo li loach. Muaj tsawg dua cov ces kaum tsis huv!" Qhov "hmoov sapphire dawb" uas lawv hais txog yog cov khoom siv tseem ceeb uas tswj hwm txoj sia huv ntawm cov khoom siv ua zaub mov: qib zaub movdawb corundum.
Hauv ntiaj teb kev ua zaub mov, "kev huv" yog qhov tseem ceeb tshaj plaws. Txawm tias qhov khawb me me lossis qhov nkhaus ntawm qhov chaw ntawm cov khoom siv tuaj yeem ua rau muaj cov kab mob thiab txawm tias muaj cov hlau khib nyiab, ua rau cov khoom puas tsuaj. Cov hmoov av dawb corundum micropowder yog "riam phom nyuaj" los kov yeej qhov kev sib tw no. Nws yog ua los ntawm alumina purity siab (Al₂O₃ ≥ 99.5%), smelted hauv lub cub hluav taws xob arc, txias thiab crystallized, thiab tom qab ntawd crushed thiab graded. Nws muaj Mohs hardness txog li 9. Txawm li cas los xij, cov kev cai ntawm cov zaub mov mus dhau qhov "hardness" xwb; lawv kuj hais txog "purity" thiab "huv si."
Kev huv si yog txoj sia ntawm kev nyab xeeb zaub mov. Cov corundum dawb hauv kev lag luam ib txwm muaj peev xwm khaws cov khoom tsis huv xws li hlau thiab chromium. Hauv kev lag luam ua zaub mov, txawm tias ib feem ntawm ib feem ntawm ib lab tuaj yeem ua rau muaj kev puas tsuaj loj heev. Kuv nco qab tias lub Hoobkas kua txiv hauv zos peb xyoos dhau los tau ntsib qhov xwm txheej uas pom cov hlau hnyav ntau dhau hauv nws cov khoom. Qhov chaw yog kev siv cov khoom siv abrasives uas muaj hlau thaum lub sijhawm polishing. Cov hlau me me no tau nkag mus rau hauv cov seams weld thiab tom qab ntawd tau yaj los ntawm cov kua qaub dhau sijhawm. Cov khoom noj khoom haus dawb corundum tshem tawm cov kev pheej hmoo no los ntawm qhov chaw: cov khoom siv raw xaiv zoo, qhov chaw smelting tsis muaj kuab paug, thiab cov khoom tiav lawm dhau los ntawm ICP-MS (Inductively Coupled Plasma Mass Spectrometry) kev sim kom ntseeg tau tias cov hlau hnyav tseem nyob hauv qab cov kev txwv nruj uas tau teev tseg los ntawm tus qauv hauv tebchaws GB 4806.9-2016, "Cov Khoom Siv Hlau thiab Cov Khoom Siv Rau Kev Sib Txuas Lus Zaub Mov." Raws li Lao Zhang los ntawm Lub Chaw Saib Xyuas Kev Zoo hais, "Cov hmoov no huv heev, nws zoo li siv nws ua lub tshuab ntsuas kev ruaj ntseg rau cov khoom siv. Koj yuav tsum 'huv' koj tus kheej ua ntej!"
Cov duab ntawm cov khoom me me txiav txim siab qhov muaj sia nyob ntawm cov chaw tsis pom kev huv. Kev txhuam cov khoom siv zaub mov tsis yog hais txog "ci ntsa iab" kom zoo dua; qhov tseem ceeb yog tsim kom muaj qhov chaw uas tsis muaj av qias neeg. Xav txog lub tank sib tov hlau tsis xeb. Txhuam nrog cov khoom siv txhuam ib txwm muaj nrog cov npoo ntse, nws zoo li ci ntsa iab, tab sis nyob rau hauv lub tshuab microscope, nws muaj ntau qhov "grooves" me me - qhov chaw ntuj rau cov kab mob thiab cov khib nyiab. Cov hmoov av dawb corundum siv cov txheej txheem tsim tshwj xeeb los tsim cov khoom me me uas yuav luag zoo li lub voos xwmfab. Raws li Lao Wang piav qhia, "Kuv tau siv cov hmoov tsis zoo, thiab cov khoom siv tom qab txhuam zoo li iav khov - du rau qhov kov, tab sis puv nrog cov qhov me me thaum saib ze dua. Tam sim no, nrog cov hmoov puag ncig no, nws zoo li daim iav tiag tiag! Yaug nws nrog kua txiv, thiab tsis muaj dab tsi lo rau ntawm qhov chaw." Cov khoom me me yog dov sib npaug thaum txhuam, es tsis txhob txiav, txo cov kab nrib pleb thiab qhov, ua rau qhov chaw ntawm cov khoom siv "yooj yim ntxuav thiab tsis muaj cov khib nyiab."
Kev kho kom zoo nkauj ntawm qhov chaw ua rau muaj kev tiv thaiv kab mob me me. Qhov kub thiab txias siab ntawm cov chaw tsim khoom noj ua rau muaj kev loj hlob ntawm cov kab mob me me. Txawm hais tias cov hmoov corundum dawb ib txwm ruaj khov, nws tuaj yeem ua rau muaj kev ua qias tuaj yog tias nws nqus cov dej noo lossis cov khoom tsis huv. Cov khoom noj khoom haus yuav tsum tau ua kom muaj kev kho mob tshwj xeeb thiab kev kho qhov hws: kev kub siab tshem tawm cov chaw ua haujlwm ntawm qhov chaw, thiab cov khoom me me tom qab ntawd raug coated nrog cov txheej txheem silane zaub mov. Cov "txheej txheem tiv thaiv" no tsis yog tsuas yog tiv thaiv cov abrasive los ntawm kev nqus cov pa phem ib puag ncig, tab sis kuj ua kom muaj kev sib xyaw thiab ruaj khov hauv cov slurry polishing. Ib tug engineer ntawm lub Hoobkas mis nyuj ib zaug tau qhia, "Tom qab hloov mus rau kev kho mobhmoov corundum dawb, tus nqi dhau rau kev tshuaj xyuas cov kab mob me me tom qab ntxuav cov khoom siv nce 30%. Nws zoo li siv ib txheej 'wax' rau ntawm qhov chaw ntawm cov khoom siv, tiv thaiv cov av kom tsis txhob nyob ntev!
Kev siv tshuab ua khoom siv thiab cov txheej txheem huv si kaw. Kev siv cov corundum dawb hauv cov khoom siv ua zaub mov tsis yog tsuas yog siv cov hmoov av thiab cov txheej txheem polishing yooj yim xwb. Txij li kev polishing welds hauv cov thoob sib tov mus rau cov pwm chocolate uas ua tiav daim iav, yuav tsum ua raws li cov qauv kev huv huv "tsis muaj plua plav, tsis muaj roj, thiab taug qab tau". Kev polishing yuav tsum tau ua nyob rau hauv ib qho chaw huv si, cais tawm siv cov roj txias rau zaub mov (feem ntau yog dej deionized lossis cov roj zaub refined) kom tiv thaiv kev ua qias tuaj ntawm cov roj av. Tom qab polishing, cov khoom siv yuav tsum tau ua ntau theem kev ntxuav: alkaline degreasing, acid passivation, thiab thaum kawg ntxuav dej huv kom txog thaum cov conductivity mus txog qib teev tseg. Tag nrho cov txheej txheem zoo li kev phais mob, nrog txhua kauj ruam sau tseg. Ib lub chaw tsim khoom noj khov xa tawm mus rau EU txawm tias yuam kom muaj qib huv si ntawm huab cua Class 100,000 hauv lub chaw ua haujlwm polishing - cov hmoov corundum dawb no yog "seev cev hauv chav huv si."
Saib mus tom ntej, cov kev cai huv thiab kev nyab xeeb ntawm kev lag luam zaub mov yuav tsuas yog nruj zuj zus. Kev saib xyuas ntse, online yuav dhau los ua ib qho kev hloov pauv. Piv txwv li, cov tshuaj dawb corundum polishing slurries nrog cov sensors built-in tuaj yeem saib xyuas pH, qhov concentration ntawm cov khoom me me, thiab cov ntsiab lus tsis huv hauv lub sijhawm tiag tiag; thiab cov tshuaj dawb corundum hloov kho nrog cov tshuaj tiv thaiv kab mob tuaj yeem tsim los muab cov khoom tiv thaiv kab mob rau cov khoom siv thaum lub sijhawm polishing. Tus kws tshaj lij khoom siv Dr. Wu ib zaug tau hais tias, "Kev hloov pauv ntawm cov khoom noj khoom haus dawb corundum yog kev sib ntaus sib tua me me tiv thaiv kev ua qias tuaj ntawm cov kab mob thiab kev tsiv teb tsaws chaw. Nws yog ntau tshaj li qhov abrasive xwb; nws yog thawj qhov kev thaiv lub cev rau kev nyab xeeb zaub mov."
Thaum lub tais hlau tsis xeb ci ntsa iab hauv qab lub teeb, thaum cov chocolate tawm hauv nws cov pwm nrog lub iav zoo meej, thaum cov kab ntim kua txiv raug ntxuav siab thiab tsis pom muaj cov kab mob me me - tom qab nws tag nrho yog cov hmoov av dawb corundum qib zaub mov, ntsiag to ua raws li nws cov lus cog tseg ntawm "kev tawv, kev dawb huv, thiab kev huv si." Nws tsis muaj lub zog ci ntsa iab, tab sis nrog nws lub zog tsis hloov pauv thiab tus cwj pwm dawb huv, nws tsim ib phab ntsa tiv thaiv tsis pom ntawm qhov tseem ceeb uas tshuab ntsib zaub mov, tiv thaiv kev nyab xeeb ntawm peb tus nplaig.
Hauv ntiaj teb kev ua zaub mov, cov qauv kev tu cev huv tshaj plaws feem ntau pib nrog qib kev du uas tsis pom.