Kev Siv Tshuab Siab Tshaj Plaws hauv Kev Ua Cov Hlau Tooj Liab rau Cov Xov Tooj Hluav Taws Xob
Tooj liab yog ib qho ntawm cov hlau tseem ceeb tshaj plaws hauv kev lag luam hluav taws xob. Yuav luag txhua lub tshuab faib hluav taws xob - los ntawm cov kab sib txuas hauv tsev thiab cov tsev siab mus rau cov chaw khaws ntaub ntawv thiab cov tsheb fais fab - vam khom cov xov tooj liab vim lawv cov hluav taws xob conductivity siab, malleability, thiab corrosion tsis kam. Txawm li cas los xij, kev tsim cov xov hluav taws xob zoo xav tau ntau dua li "muaj tooj liab." Ib qho ntawm cov thev naus laus zis siab heev hauv kev ua, kev ua kom zoo nkauj, kev tsim, thiab kev tswj xyuas zoo yog qhov yuav tsum tau ua kom tooj liab ua tau raws li cov qauv rau conductivity, lub zog kho tshuab, thiab kev ntseeg siab mus sij hawm ntev. Tsab xov xwm no tham txog ntau yam thev naus laus zis niaj hnub siv hauv kev ua cov hlau tooj liab rau cov xov hluav taws xob, los ntawm cov khoom siv raw mus rau cov conductors tiav.
1. Vim li cas tooj liab thiaj zoo tagnrho rau kev txuas hluav taws xob?
Qhov zoo tshaj plaws ntawm tooj liab yog nws cov hluav taws xob conductivity siab. Tooj liab qhov tsis tshua muaj hluav taws xob tiv taus txo qhov kev poob zog hauv daim ntawv ntawm cua sov. Ntxiv mus, tooj liab muaj qhov zoo ductility thiab toughness, tso cai rau nws raug rub mus rau hauv cov xov hlau me me yam tsis yooj yim tawg. Hais txog kev ruaj khov, tooj liab kuj muaj kev tiv thaiv corrosion zoo hauv ntau qhov chaw, tshwj xeeb tshaj yog thaum piv rau qee lwm yam hlau.
Txawm li cas los xij, qhov kev ua tau zoo no raug cuam tshuam los ntawm qhov huv thiab microstructure ntawm cov hlau. Txawm tias qhov tsis huv me me - xws li oxygen, sulfur, lossis lwm yam khoom - tuaj yeem txo qhov conductivity lossis ua rau cov hlau tawg yooj yim dua. Yog li ntawd, cov tuam txhab tsim cable niaj hnub no tab tom siv cov txheej txheem ua tooj liab kom meej dua, suav nrog kev tswj hwm cov khoom sib xyaw, kub, thiab cov pa oxygen.
2. Kev xaiv cov khoom siv raw: concentrate, cathode, thiab scrap
Feem ntau, cov khoom siv tooj liab rau kev lag luam cable yog los ntawm peb qhov chaw: tooj liab uas tau khawb los ntawm av (concentrate), tooj liab cathode (electrolytic refining), thiab tooj liab rov ua dua tshiab (cov khoom seem). Cov thev naus laus zis siab heev tam sim no siv dav hauv kev cais cov khoom seem kom ntseeg tau tias nws tuaj yeem siv dua yam tsis muaj kev cuam tshuam rau qhov zoo ntawm cable. Cov txheej txheem cais niaj hnub no siv XRF (X-ray fluorescence) sensors los txheeb xyuas cov ntsiab lus ntawm cov khoom, nrog rau cov txheej txheem cais kho qhov muag los cais cov khoom siv raws li hom thiab qib ntawm kev ua qias tuaj.
Rau kev tsim cov xov hlau zoo, cathode tooj liab nrog qhov huv ntawm kwv yees li 99,99% feem ntau yog qhov nyiam vim nws qhov sib xws ntau dua. Txawm li cas los xij, cov chaw tsim khoom niaj hnub no kuj tseem tuaj yeem ua cov khoom sib xyaw ua ke hauv qab kev tswj hwm nruj kom ntseeg tau tias cov khoom kawg ua tau raws li cov qauv.
3. Kev ua kom tooj liab zoo: los ntawm kev smelting mus rau electrorefining
Theem kev ua kom zoo yog qhov tseem ceeb. Rau cov tooj liab thawj zaug los ntawm cov khoom siv concentrate, cov txheej txheem feem ntau yuav tsum tau smelting thiab hloov mus rau kev sib cais hlau thiab sulfur, tsim "blister tooj liab" nrog qhov huv ntawm kwv yees li 98-99%. Tom qab ntawd kev ua kom zoo ntxiv yog ua los ntawm electrorefining (electrolytic refining). Hauv electrorefining, tooj liab tsis huv ua haujlwm ua anode, thaum cov ntawv ci tooj liab ntshiab ua haujlwm ua cathode. Ib qho hluav taws xob tso cov tooj liab ntshiab rau ntawm cathode, thaum qee yam impurities precipitate tawm mus rau hauv "anode slime," uas tuaj yeem muaj cov hlau muaj nqis.
Cov thev naus laus zis niaj hnub no suav nrog:
- Kev tswj hwm tsis siv neeg ntawm cov electrolyte tam sim no thiab qhov kub kom tswj tau qhov ruaj khov.
- Kev saib xyuas cov tshuaj electrolyte tiag tiag kom tiv thaiv cov khoom tsis huv kom tsis txhob nqa mus.
- Kev siv hluav taws xob zoo dua vim tias kev siv hluav taws xob ntau yog ib qho txheej txheem siv hluav taws xob ntau.
Qhov tshwm sim yog cov tooj liab cathode zoo uas yog cov khoom siv tseem ceeb rau kev ua cov pas nrig (tooj liab tuav) ua ntej raug rub mus rau hauv hlau.
4. Kev Siv Tshuab Nruam Nruam thiab Dov (CCR)
Ib qho ntawm cov kev hloov tshiab uas muaj feem cuam tshuam tshaj plaws hauv kev lag luam cable yog kev sib txuas ntxiv casting thiab dov (CCR). Es tsis txhob nchuav cov tooj liab uas yaj rau hauv cov ingots loj thiab tom qab ntawd ua tiav lawv ua ntu zus, CCR tso cai rau cov tooj liab uas yaj kom raug pov rau hauv cov pas nrig thiab dov ncaj qha rau ntawm ib txoj kab ntau lawm.
Cov txiaj ntsig ntawm CCR:
- Kev tsim khoom siab thiab kev tsim khoom luv dua.
- Zoo ib yam li qub, vim tias qhov kub thiab qhov ceev ntawm cov txheej txheem raug tswj tau yam tsis tas siv neeg.
- Kev txuag hluav taws xob piv rau cov txheej txheem ib txwm muaj.
- Kev tswj hwm cov pa oxygen zoo dua, ua rau muaj tooj liab nrog cov yam ntxwv tsim nyog rau cov cables.
Thaum lub sijhawm ua cov txheej txheem casting, kev tswj qhov kub thiab txias yog qhov tseem ceeb rau cov qauv microstructure ntawm tooj liab. Kev txias sai dhau lossis tsis sib npaug tuaj yeem ua rau muaj qhov tsis zoo sab hauv. Yog li ntawd, cov chaw tsim khoom niaj hnub no siv cov cuab yeej ntsuas kub, kev tswj cua txias hauv computer, thiab cov txheej txheem tshuaj xyuas kom pom qhov tsis zoo.
5. Kev tswj cov pa oxygen: ETP, OFHC, thiab lub luag haujlwm ntawm kev tshem cov pa roj tawm
Hauv cov ntsiab lus ntawm cov xov hluav taws xob, ntau hom tooj liab feem ntau raug lees paub raws li cov pa oxygen:
– ETP (Electrolytic Tough Pitch): feem ntau siv, muaj cov pa oxygen tsawg, conductivity siab, pheej yig.
– OF (Tsis Muaj Pa oxygen) thiab OFHC (Tsis Muaj Pa oxygen High Conductivity): cov pa oxygen tsawg heev, tsim rau cov ntawv thov tshwj xeeb uas xav tau kev ruaj khov siab dua.
Kev siv tshuab degassing, lossis kev txo cov pa roj uas yaj, yog qhov tseem ceeb thaum ib lub nroj tsuag tsom mus rau cov tooj liab uas muaj oxygen tsawg. Kev tswj cov huab cua yaj, siv cov pa roj tiv thaiv, thiab xaiv cov fluxes tshwj xeeb tuaj yeem pab tiv thaiv kev tsim oxide. Lub hom phiaj yog los tiv thaiv cov teeb meem xws li hydrogen embrittlement nyob rau hauv qee qhov xwm txheej thiab tswj kev ua tau zoo ntawm conductivity.
6. Kev siv tshuab kos duab ntau txoj kev hla thiab kev siv lubrication siab heev
Tom qab cov tooj liab raug tsim ua ib tug pas nrig, theem tom ntej yog kev kos duab hlau. Cov txheej txheem no yog ua tiav ntau zaus los ntawm ntau qhov kev tuag kom maj mam txo qhov loj me. Cov thev naus laus zis kos duab hlau niaj hnub no vam khom rau:
- Tshuab kos duab ceev ceev nrog kev tswj qhov nro tsis siv neeg kom tiv thaiv kev tawg ntawm cov hlau.
- Cov tuag ua los ntawm carbide lossis pob zeb diamond rau lub neej ntev dua thiab cov txiaj ntsig ntawm qhov chaw du.
- Lub tshuab ua kom lubrication zoo heev (lubricant thiab coolant) los txo qhov kev sib txhuam, cua sov thiab qhov tsis zoo ntawm qhov chaw.
- Kev tswj hwm txoj kab uas hla hauv kab siv lub tshuab ntsuas laser kom kho qhov sib txawv ntawm qhov loj me tam sim ntawd.
Qhov sib xws ntawm lub cheeb thiab qhov zoo ntawm qhov chaw yog qhov tseem ceeb heev vim nws cuam tshuam rau kev tiv thaiv hluav taws xob, yooj yim ntawm kev ua tiav tom qab, thiab qhov zoo ntawm cov rwb thaiv tsev uas yuav tsum tau coated.
7. Kev ua kom sov niaj hnub: sib npaug zog thiab kev ywj pheej
Kev rub cov hlau ua rau lub zog tawv dua (ua haujlwm tawv), ua rau cov hlau muaj zog dua tab sis tsis yooj ywm. Cov xov hluav taws xob xav tau kev sib xyaw ua ke: muaj zog txaus los tiv taus kev tawg, tab sis yooj ywm txaus rau kev teeb tsa. Qhov no yog qhov uas annealing los rau hauv, ib qho txheej txheem tswj cua sov uas rov qab ua kom yooj ywm.
Cov txheej txheem niaj hnub annealing feem ntau siv:
- Kev sib txuas ua ke hauv kab annealing nrog lub tshuab kos duab.
- Kev tswj qhov kub thiab txias thiab lub sijhawm cua sov xam raws li kab ceev.
- Tswj huab cua kom txo qhov oxidation ntawm qhov chaw.
Cov txiaj ntsig annealing ruaj khov ua rau cov hlau tooj liab yooj yim dua rau kev ntswj (stranding) thiab tiv taus kev tawg thaum khoov.
8. Kev khi thiab kev sib zog: kev tsim qauv zoo dua
Hauv ntau hom cables, tus conductor tsis yog ib txoj hlau xwb, tab sis yog ib pawg ntawm cov hlau me me uas sib ntswg ua ke (stranding). Cov thev naus laus zis niaj hnub no siv cov tshuab uas muaj kev tswj qhov siab thiab kev nruj kom raug. Qee cov cables kuj siv cov conductors compacted, uas yog cov conductors uas raug nias kom txo qhov sib txawv ntawm cov hlau. Qhov no tso cai rau txoj kab uas hla cable me dua thiab tuaj yeem txhim kho qhov chaw siv tau zoo, tshwj xeeb tshaj yog nyob rau hauv cov chaw teeb tsa tuab.
Tsis tas li ntawd xwb, muaj ib txoj kev siv segmental conductor rau cov xov hluav taws xob loj, uas pab txo qhov poob vim yog qhov cuam tshuam ntawm daim tawv nqaij hauv cov hluav taws xob AC siab lossis cov khoom thauj loj.
9. Kev tswj xyuas zoo raws li sensor thiab cov ntaub ntawv
Kev lag luam cable niaj hnub no tab tom txav mus rau lub tswv yim ntawm kev tsim khoom ntse. Kev ua tooj liab thiab kev tsim cov xov hlau tam sim no muaj cov hauv qab no:
- Kev kuaj tam sim no eddy los nrhiav qhov tsis zoo ntawm qhov chaw thiab cov kab nrib pleb me me hauv cov hlau.
- Kev kuaj xyuas kev coj ua sai sai kom ntseeg tau tias ua raws li cov qauv (piv txwv li feem pua IACS).
- Kev ntsuas ntawm kev tiv taus, elongation, thiab tensile lub zog ua cov cim qhia ntawm cov yam ntxwv kho tshuab.
– Kev siv Barcode/QR los nrhiav thiab sau cov txheej txheem, yog li ntawd yog tias muaj teeb meem tshwm sim hauv daim teb, cov khoom tsim tawm tuaj yeem taug qab rov qab.
Nrog kev tshuaj xyuas cov ntaub ntawv thiab kev txij nkawm ua ntej, cov chaw ua haujlwm tuaj yeem txo lub sijhawm tsis ua haujlwm thiab tswj tau qhov zoo sib xws ntawm ib lub yob hlau mus rau lwm lub yob.
10. Cov kev taw qhia yav tom ntej: kev siv hluav taws xob zoo thiab kev siv rov qab zoo
Mus tom ntej, cov thev naus laus zis ua tooj liab rau cov cables yuav tsom mus rau kev siv hluav taws xob zoo, txo cov pa phem, thiab nce kev siv rov qab yam tsis muaj kev txo qis qhov zoo. Cov chaw tsim khoom yuav tsim cov txheej txheem refining pov tseg kom meej dua, siv AI-raws li kev tswj hwm cov txheej txheem, thiab ua kom zoo dua kev siv hluav taws xob hauv cov theem electrorefining thiab CCR. Lub caij no, qhov kev thov ntawm cov ntawv thov tshiab - xws li tsheb fais fab, lub zog rov ua dua tshiab, thiab cov chaw khaws ntaub ntawv - yuav tsav cov lus qhia cable nruj dua, xav tau kev nce qib hauv kev tswj hwm zoo thiab thev naus laus zis tsim khoom.
Xaus
Cov thev naus laus zis siab heev hauv kev ua cov hlau tooj liab rau cov xov hluav taws xob suav nrog tag nrho cov txheej txheem txheej txheem: kev xaiv cov khoom siv raw, kev ua kom huv electrolytic, kev sib txuas thiab dov tas mus li, kev tswj cov pa oxygen, kev kos duab ntau txoj hlua, kev ua kom raug, thiab kev tshuaj xyuas zoo los ntawm sensor thiab cov ntaub ntawv. Tag nrho cov theem no tsom mus rau kev tsim cov hlau tooj liab nrog kev ua tau zoo, qhov loj me meej, lub zog tswj thiab kev ywj pheej, thiab kev ntseeg siab mus sij hawm ntev. Nrog rau kev txhim kho ntawm kev tsim khoom ntse thiab kev thov hluav taws xob ntau ntxiv thoob plaws ntau qhov chaw, kev tsim kho tshiab hauv kev ua cov hlau tooj liab yuav tseem yog lub hauv paus tseem ceeb rau cov khoom siv hluav taws xob niaj hnub.
Yog tias koj xav tau, kuv tuaj yeem hloov kho tsab xov xwm no kom muaj kev txawj ntse ntau dua (piv txwv li ntxiv cov txheej txheem txheej txheem, ASTM/IEC cov qauv, lossis CCR cov ntaub ntawv tshawb fawb) lossis nrov dua rau cov neeg nyeem dav dav.
