Cov Hmoov Silicon Carbide Ntsuab: Ib qho Benchmark Tshiab rau Cov Khoom Siv Ua Haujlwm Zoo, Txuag Hluav Taws Xob
I. Nws Yog Dab Tsi Tiag? Vim Li Cas Nws Thiaj Hu Ua "Hardcore"?
Ua ntej, cia peb nkag siab txog dab tsihmoov silicon carbide ntsuabyog. Xav txog nws zoo li ib hom "pob zeb diamond cuav." Txawm hais tias nws tsis tawv npaum li pob zeb diamond tiag tiag, nws yog ib qho khoom siv abrasive zoo tshaj plaws. Nws tau raug ua kom huv hauv lub cub tawg uas tiv taus kub siab tshaj 2,000 degrees Celsius siv cov xuab zeb quartz, roj av coke, thiab lwm yam khoom siv raw, ua rau nws muaj xim ntsuab tshwj xeeb.
Nws qhov "hardcore" xwm txheej feem ntau yog pom tseeb hauv peb yam:
Kev Nyuaj Siab thiab Ntug Ntsug: Nws qhov kev nyuaj ntawm Mohs ncav cuag 9.2, thib ob tsuas yog pob zeb diamond. Qhov no txhais tau tias thaum txiav thiab sib tsoo, nws ua haujlwm zoo li ib tug hniav me me, ntse, yooj yim "sib tsoo" los ntawm cov ntaub ntawv tawv thiab brittle xws li photovoltaic silicon wafers, sapphire iav, thiab piezoelectric crystals.
Kev Ruaj Khoov Siab, Nyiam Rhuav Dua Li Khoov: Kev tawv ib leeg tsis txaus; nws kuj xav tau kev ruaj khov. Qee cov ntaub ntawv tawg yooj yim thiab tawg ua hmoov me me thaum nias, ua rau lawv tsis muaj txiaj ntsig. Cov hmoov silicon carbide ntsuab muaj kev ruaj khov siab thaum tseem tswj tau qhov ruaj khov zoo heev. Nws tswj tau nws cov duab thaum muaj kev nyuaj siab loj heev, siv zog rau cov khoom ua haujlwm yam tsis tawg.
Tshuaj ruaj khov thiab ua haujlwm tau zoo: Thaum sov li chav tsev, nws tsis tshua muaj tshuaj lom neeg nrog cov kua qaub lossis cov hauv paus, ua rau nws yog cov khoom siv ua haujlwm tau zoo. Qhov no txhais tau tias thaum lub sijhawm txiav, nws zam kev tsis xav tau cov tshuaj lom neeg nrog cov khoom siv uas tab tom ua, ua kom cov khoom huv. Qhov no yog qhov tseem ceeb rau kev lag luam photovoltaic thiab semiconductor, qhov twg kev huv yog qhov tseem ceeb.
II. Kev ua haujlwm zoo thiab txuag hluav taws xob - nws tsis yog tsuas yog cov lus hais khoob xwb
Mus rau lub ntsiab lus: Vim li cas nws thiaj hu ua "tus qauv tshiab"? Cov kev ua haujlwm zoo thiab kev txuag hluav taws xob no tau ua pov thawj li cas? Cia peb txiav txim siab thiab piav qhia qee qhov xwm txheej uas siv tau.
Xwm Txheej 1: Cov "Precision Cutters" ntawm Photovoltaic Silicon Wafers
Lao Zhang, koj paub qhov no zoo tshaj plaws.Cov khoom siv siliconNiaj hnub nim no kim heev. Kev txiav nws nyias dua yuav ua rau muaj ntau daim wafers, txo cov nqi. Txawm li cas los xij, cov wafers silicon nyias dua yuav yooj yim tawg, xav tau cov qauv siab dua rau kev siv tshuab txiav thiab cov khoom siv abrasives. Hmoov silicon carbide ntsuab, nrog nws cov duab zoo sib xws thiab cov npoo ntse, tsim cov zog txiav ruaj khov thiab sib xws thaum lub sijhawm txiav. Qhov tshwm sim:
Kev txiav zoo heev: Ntau cov wafers tuaj yeem txiav tau tib lub sijhawm, lossis qhov ceev txiav tuaj yeem nce ntxiv.
Qhov zoo ntawm qhov chaw: Cov txheej txheem puas tsuaj ntawm qhov chaw ntawm cov silicon wafers txiav yog tsawg heev, thiab TTV (kev hloov pauv tag nrho cov tuab) yog qis, ua rau muaj kev nce ntxiv sai hauv cov txiaj ntsig.
Kev poob khoom tsawg: Kev txiav kom raug ua rau muaj kev poob kerf tsawg kawg nkaus, txo qhov kev pov tseg ntawm cov khoom siv silicon kim. Rau kev nqis peev feem ntau tshaj pua lab yuan, qhov kev txuag no yog qhov tseem ceeb.
Xwm txheej 2: Tus "neeg ncaws pob uas ua siab ntev" ntawm kev ua cov pob zeb sapphire
Ntau lub koob yees duab ntawm koj lub xov tooj thiab cov iav saib zoo nkauj yog ua los ntawm sapphire. Sapphire nyuaj dua li iav thiab nyuaj rau ua. Kev siv cov khoom siv abrasives ib txwm tuaj yeem ua rau nws tsis ci tom qab lub sijhawm luv luv, ua rau kev ua haujlwm tsis zoo. Txawm li cas los xij, cov hmoov silicon carbide ntsuab, ua tsaug rau nws txoj kev tiv thaiv kev hnav zoo heev, tswj tau qhov txiav ntse ntev dua, ua rau nws lub neej ntev dua. Qhov no txhais tau tias:
Qhov zaus ntawm kev hloov pauv abrasive raug txo qis, lub sijhawm tsis ua haujlwm raug luv dua, thiab kev ua haujlwm zoo dua.
Tag nrho cov nqi ua tiav raug txo qis. Txawm hais tias tus nqi ib tuj yuav siab dua, qhov kev ua haujlwm zoo dua thiab cov khoom siv tsawg dua yeej txo tus nqi tag nrho. Qhov no yog qhov tseeb "txuag hluav taws xob."
Xwm Txheej 3: Nthuav Dav Mus Rau Lub Ntiaj Teb Dav Dua
Nws lub peev xwm nthuav dav tshaj qhov no. Ntxiv nws rau cov khoom siv refractory siab heev tuaj yeem ua rau lub neej ntawm cov qhov cub thiab txhim kho kev rwb thaiv tsev, txuag tau lub zog hauv cov cub tawg uas siv zog ntau. Hauv cov ntaub ntawv sib xyaw, ua ib qho kev txhawb nqa, nws ua rau cov khoom siv tiv taus kev hnav thiab muaj zog dua, txuas ntxiv cov voj voog kev saib xyuas cov khoom siv - kuj yog ib daim ntawv zais ntawm kev txuag hluav taws xob. Txawm tias nyob rau hauv kev lag luam aerospace, nws yog qhov tseem ceeb rau kev sib tsoo precision ntawm qee cov khoom siv ceramic tshwj xeeb.
III. Txoj Kev Ua Ntej: Zoo Dua, Sib Xws Dua, Ntse Dua
Tau kawg, cov hmoov silicon carbide ntsuab tsis zoo tag nrho. Yuav kom tau txais "qhov kev ntsuas tshiab no," peb cov chaw tsim khoom yuav tsum ua haujlwm hnyav hauv ntau qhov chaw:
Kev txhim kho tas mus li ntawm qhov loj ntawm cov khoom me me: Cov lag luam hauv qab no xav tau kev ua kom raug dua. Peb yuav tsum tsim cov hmoov me me uas muaj qhov faib tawm ntawm cov khoom me me ntau dua thiab cov duab ntawm cov khoom me me sib xws (isomorphism zoo dua). Qhov no zoo li ib pawg tub rog taug kev ua ke thiab txav mus rau hauv ib qho kev taw qhia kom muaj txiaj ntsig zoo tshaj plaws rau kev sib ntaus sib tua. Cov ntsiab lus ntawm cov khoom loj thiab me me (qhov hu ua "coarse" thiab "fine") yuav tsum tau tswj hwm nruj; txwv tsis pub, kev txiav yuav ua rau khawb ntawm qhov workpiece thiab txo qis kev ua haujlwm.
Kev kos duab ntawm kev hloov kho qhov chaw: Kev hloov kho qhov chaw ntawmcov hmoov me meyog ib txoj haujlwm siv tshuab heev. Piv txwv li, kev txhim kho lawv qhov sib xws nrog cov kua txiav thiab cov resin binders tuaj yeem txhim kho kev txiav zoo thiab kev ua haujlwm ntawm cov khoom. Nws zoo li roj rau rab ntaj - nws tsis yog tsuas yog ua kom nws cov ntug ntse xwb tab sis kuj ua rau nws ruaj khov dua.
Kev Ua Kom Cov Txheej Txheem Tsim Khoom Ntsuab: Txawm hais tias nws yog cov khoom siv txuag hluav taws xob, nws cov txheej txheem tsim khoom puas tuaj yeem siv hluav taws xob ntau dua thiab zoo rau ib puag ncig? Piv txwv li, kev siv hluav taws xob hauv cov cub tawg smelting, kev sau cov hmoov av thaum lub sijhawm tsoo thiab tshuaj ntsuam, thiab kev siv dej rov ua dua - txhua qhov chaw uas xav tau kev txhim kho tas mus li thiab rov ua dua hauv peb txoj kev lag luam. Peb siv zog los tsim cov khoom siv ntsuab thoob plaws lawv lub neej tag nrho.
Rau cov neeg ua haujlwm hauv kev lag luam khoom siv, zaj dab neeg ntawm cov hmoov silicon carbide ntsuab nyuam qhuav pib. Kev ua kom nws zoo dua, ntxaws ntxaws, thiab ntse dua yog peb qhov kev koom tes tseem ceeb tshaj plaws rau kev tsav tsheb Tuam Tshoj txoj kev tsim khoom siab mus rau kev ua haujlwm zoo thiab kev txuag hluav taws xob.