To taub tob txog cov txheej txheem tsim khoom ntawm cov hmoov av corundum xim av
Sawv ntawm peb meters ntawm lub cub tawg hluav taws xob arc, lub cua sov qhwv nrog cov ntxhiab ntawm cov hlau hlawv ntaus koj lub ntsej muag - cov bauxite slurry ntawm ntau dua 2200 degrees hauv lub cub tawg dov nrog cov npuas liab kub. Tus tswv qub Lao Li so nws cov hws thiab hais tias: "Koj puas pom? Yog tias cov khoom siv yog ib lub shovel tsawg dua thee, qhov kub ntawm lub cub tawg yuav poob qis 30 degrees, thiabxim av corundum uas tawm los yuav tawg yooj yim li ncuav qab zib. ” Lub lauj kaub no uas muaj cov hlau yaj npau yog thawj qhov xwm txheej ntawm kev yug los ntawm cov hmoov corundum xim av.
1. Yaj: Txoj haujlwm nyuaj ntawm kev coj "jade" tawm ntawm hluav taws
Lo lus "fierce" yog engraved rau hauv cov pob txha ntawm xim av corundum, thiab tus cwj pwm no yog refined nyob rau hauv lub hluav taws xob arc cub tawg:
Cov khoom xyaw zoo li tshuaj: bauxite puag (Al₂O₃>85%), tus neeg sawv cev txo cov anthracite, thiab cov ntaub ntawv hlau yuav tsum tau muab pov tseg ua "tus sib tw" - yog tsis muaj nws los pab yaj, cov impurity silicates tsis tuaj yeem ntxuav tau. Cov phau ntawv sib piv ntawm cov chaw tsim khoom qub hauv Henan Xeev tau hnav tag nrho: "Thee ntau dhau txhais tau tias muaj carbon ntau thiab dub, thaum hlau tsawg dhau txhais tau tias slag tuab thiab agglomeration"
Qhov zais cia ntawm lub cub tawg uas tig: Lub cev cub tawg tau tig ntawm lub kaum sab xis 15-degree kom cov yaj yaj mus rau hauv cov qauv ntuj, txheej hauv qab ntawm alumina ntshiab crystallizes rau hauv xim av corundum, thiab txheej sab saud ntawm ferrosilicon slag raug scooped tawm. Tus tswv qub siv lub cuab yeej ntev los poke lub qhov chaw kuaj, thiab cov dej ntws uas tau txau txias thiab qhov seem yog xim av tsaus: "Xim no yog lawm! Lub teeb xiav qhia tias titanium siab, thiab lub teeb grey txhais tau tias silicon tsis tau raug tshem tawm tag nrho"
Kev txias sai txiav txim siab qhov tshwm sim: cov yaj raug nchuav rau hauv qhov tob thiab nchuav nrog dej txias kom "tawg" ua tej daim, thiab cov pa dej ua rau muaj suab nrov zoo li pob kws. Kev txias sai kaw cov qhov tsis zoo ntawm lub lattice, thiab qhov tawv yog 30% siab dua li ntawm kev txias ntuj - ib yam li tua rab ntaj, qhov tseem ceeb yog "ceev"
2. Kev tsoo thiab kev ua kom zoo nkauj: kev kos duab ntawm kev ua kom "cov txiv neej tawv ncauj" zoo nkauj
Qhov nyuaj ntawm lub pob zeb corundum xim av uas tawm ntawm qhov cub yog ze rau ntawmpob zeb diamondNws siv sijhawm ntau los hloov nws mus rau hauv qib micron "tub rog zoo tshaj plaws":
Qhov qhib ntxhib ntawm lub puab tsaig crusher
Lub phaj hydraulic "crunches" thiab lub pob tawb loj li pob tawb raug rhuav ua txiv ntoo walnuts. Tus neeg teb xov tooj Xiao Zhang taw tes rau ntawm lub vijtsam thiab yws tias: "Lub sijhawm kawg tau sib xyaw ua ke, thiab lub phaj jaw tawg ib qho chaw sib txawv. Cov neeg saib xyuas tau caum kuv thiab cem kuv rau peb hnub"
Kev hloov pauv hauv lub tshuab ua pob
Lub tshuab zeb pob zeb uas muaj granite sib dhos ua ke, thiab cov pob hlau ntaus cov blocks zoo li cov neeg seev cev uas ua phem heev. Tom qab 24 teev ntawm kev sib tsoo tas li, cov hmoov av xim av tsaus nti tau tawm ntawm qhov chaw tso tawm. "Muaj ib qho kev dag ntxias ntawm no," tus kws kho tshuab tau kov lub vaj huam sib luag tswj hwm: "Yog tias qhov ceev tshaj 35 rpm, cov khoom me me yuav raug sib tsoo ua koob; yog tias nws tsawg dua 28 rpm, cov npoo yuav ntse dhau."
Kev Phais Kho Mob Barmac
Cov kab ntau lawm zoo tshaj plaws qhia txog nws daim ntawv pov thawj - Barmac lub tshuab tsoo ntsug. Cov khoom siv raug tsoo los ntawm kev sib tsoo tus kheej hauv qab lub rotor ceev ceev, thiab cov hmoov me me uas tsim tawm yog puag ncig li cov pob zeb dej. Lub Hoobkas sib tsoo log hauv Zhejiang xeev ntsuas: rau tib qho kev qhia ntawm cov hmoov me me, txoj kev ib txwm muaj qhov ceev ntawm 1.75g / cm³, thaum txoj kev Barmac muaj qhov ceev ntawm 1.92g / cm³! Mr. Li ntswj cov qauv thiab nqus pa: "Yav dhau los, lub Hoobkas sib tsoo log ib txwm yws txog qhov tsis zoo ntawm cov hmoov, tab sis tam sim no nws yws tias qhov ceev ntawm kev sau ceev dhau los ua kom tsis txhob ua raws li."
3. Kev ntsuas qib thiab kev ntxuav: kev yos hav zoov kom raug hauv ntiaj teb ntawm microns
Kev faib cov khoom me me uas muaj li ntawm 1/10 ntawm cov plaub hau tuab mus rau ntau qib yog kev sib ntaus sib tua ntawm tus ntsuj plig ntawm cov txheej txheem:
Qhov tsis paub meej ntawm kev faib tawm ntawm huab cua
Cov cua uas muaj 0.7MPa compressed cua maj mam nkag mus rau hauv chav faib cov hmoov, thiab qhov ceev ntawm lub impeller txiav txim siab "kab nkag": 8000 rpm tiv thaiv W40 (40μm), thiab 12000 rpm cuam tshuam W10 (10μm). "Kuv ntshai tshaj plaws ntawm cov av noo ntau dhau," tus thawj coj ntawm lub rooj cob qhia tau taw qhia rau lub pej thuam dehumidification: "Lub hli tas los, lub condenser tau xau fluorine, thiab cov hmoov me me tau sib sau ua ke thiab thaiv cov kav dej. Nws siv peb lub sijhawm los ntxuav nws."
Cov riam mos mos ntawm kev faib tawm hydraulic
Rau cov hmoov zoo heev uas qis dua W5, dej ntws los ua qhov chaw faib tawm. Cov dej huv hauv lub thoob faib tawm yuav tsa cov hmoov zoo ntawm tus nqi ntws ntawm 0.5m/s, thiab cov khoom me me poob ua ntej. Tus neeg teb xov tooj ntsia lub ntsuas turbidity: "Yog tias tus nqi ntws yog 0.1m/s sai dua, ib nrab ntawm cov hmoov W3 yuav tawm; yog tias nws qeeb dua 0.1m/s, W10 yuav sib xyaw thiab ua rau muaj teeb meem."
Kev sib ntaus sib tua zais cia ntawm kev sib cais sib nqus thiab kev tshem tawm hlau
Lub zog sib nqus muaj zog rub cov hlau tawm nrog lub zog nqus ntawm 12,000 gauss, tab sis nws tsis muaj zog tiv thaiv cov hlau oxide. Lub tswv yim ntawm lub Hoobkas Shandong yog: ua ntej-soak nrog oxalic acid ua ntej pickling, hloov cov Fe₂O₃ nyuaj rau hauv soluble ferrous oxalate, thiab cov ntsiab lus hlau impurity poob qis los ntawm 0.8% mus rau 0.15%
4. Pkev khaus thiab calcining: qhov "rov yug dua" ntawm cov khoom siv abrasives
Yog koj xav tauxim av corundum micropowderYuav kom tiv taus qhov kev sim hauv lub log sib tsoo kub siab, koj yuav tsum dhau ob qhov kev sim txoj sia thiab kev tuag:
Cov lus sib piv ntawm acid-base pickling
Cov npuas dej hauv lub tank hydrochloric acid nce mus rau yaj cov hlau tsis huv, thiab kev tswj hwm qhov concentration zoo li taug kev ntawm txoj hlua nruj: tsawg dua 15% tsis tuaj yeem ntxuav xeb, thiab ntau dua 22% corrodes lub cev alumina. Lao Li tau tsa daim ntawv xeem PH los qhia kev paub: "Thaum neutralizing nrog alkaline ntxuav, koj yuav tsum pinch kom raug PH = 7.5. Acid yuav ua rau burrs ntawm cov siv lead ua, thiab alkaline yuav ua rau qhov chaw ntawm cov khoom me me ua hmoov."
Qhov kub sib tw ntawm calcination
Tom qab calcination ntawm 1450 ℃ / 6 teev hauv lub qhov cub rotary, cov ilmenite impurities decompose rau hauv rutile theem, thiab qhov kub tsis kam ntawm micropowder nce mus txog 300 ℃. Txawm li cas los xij, vim yog kev laus ntawm lub thermocouple ntawm qee lub Hoobkas, qhov kub tiag tiag tshaj 1550 ℃, thiab tag nrho cov hmoov me me uas tawm hauv lub cub tawg tau sintered rau hauv "sesame ncuav mog qab zib" - 30 tons ntawm cov ntaub ntawv tau raug pov tseg ncaj qha, thiab tus thawj coj ntawm lub Hoobkas tau ntxhov siab heev uas nws tau ntaus nws txhais taw.
Xaus lus: Kev zoo nkauj ntawm kev lag luam ntawm millimeters
Hauv lub rooj sib tham thaum tsaus ntuj, cov tshuab tseem nrov nrov. Lao Li tau ntxuav cov hmoov av ntawm nws cov khaub ncaws ua haujlwm thiab hais tias: "Tom qab ua haujlwm hauv kev lag luam no tau 30 xyoo, thaum kawg kuv nkag siab tias cov hmoov me me zoo yog '70% kev ua kom huv thiab 30% lub neej' - cov khoom xyaw yog lub hauv paus, kev sib tsoo yog nyob ntawm kev nkag siab, thiab kev ntsuas qib yog nyob ntawm kev ceev faj." Txij li bauxite mus rau nano-scale micro hmoov, kev tshawb fawb txog thev naus laus zis ib txwm tig ib puag ncig peb lub hauv paus: kev huv (kev tshem tawm cov khoom tsis huv thiab kev ua qias tuaj), morphology (Barmac shaping), thiab qhov loj me ntawm cov khoom me me (kev ntsuas qib meej).