Flux-cored Xaim: Tiv Thaiv Tus Kheej Nrog Flux Rau Cov Cuab Yeej Siv Hluav Taws Xob Ib Nrab Thiab Nws Hom, Yuav Ua Li Cas Ua Noj Nws Yam Tsis Muaj Roj, Qhov Taub Thiab Teeb Tsa, Ho

2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-09 13:23

Cov txheej txheem rau vuam cov qauv hlau siv cov electrodes tsis yooj yim. Cov teeb meem hauv kev ua cov txheej txheem no tau pom nyob hauv thaj chaw qhib, ntawm qhov siab.

Txhawm rau zam kom tsis txhob tsim cov nqaws tsis zoo, qee cov kws ua haujlwm siv cov cored hlau.

Nws yog dab tsi?

Vuam hlau yog suav tias yog ib feem tseem ceeb ntawm cov thev naus laus zis niaj hnub no. Tus cwj pwm hmoov muaj daim ntawv ntawm lub raj hlau hollow, sab hauv uas cov dej ntws los lossis nws kuj tseem ua ke nrog cov hmoov hlau. Cov xaim no yog siv los tsim cov hlau txuas hauv ib nrab tsis siv roj tsis siv vuam. Ua tsaug rau qhov pom niaj hnub no ntawm tus cwj pwm no, qhov yooj yim taws ntawm lub arc tau ua tiav, nrog rau cov txheej txheem ruaj khov.

Kev tsim cov hlua hluav taws xob tau ua raws qhov nruj ua raws li GOST, yog li ntawd, nws txoj kev siv muab cov txiaj ntsig zoo. Lub xub ntiag ntawm qhov zoo ntawm cov hlau, phosphorus, chromium hauv lub raj lav cov ntsiab lus hauv qab no:

• kev ruaj ntseg ntawm qhov kub nyob hauv thaj chaw ntawm chav da dej, nrog rau ib puag ncig ntawm lub arc, kom txog thaum nws haum rau cov khoom siv;
• txhawb kev sib xyaw ntawm cov hlau fused rau ntawm qhov chaw, nrog rau cov electrode;
• kev kaw tsis sib xws ntawm cov nqaws hla tag nrho qhov dav los ntawm kev sib cuag nrog roj;
• kom ntseeg tau tias qhov tsis sib xws ntawm cov dej npau thiab tsis muaj kev sib tsoo;
• nce qhov nrawm ntawm vuam qhov.

Nrog kev pab los ntawm cov kab hluav taws xob sib txuas, cov nthwv dej ntawm ntu tau ua tiav, nrog rau cov txheej txheem vuam nyob hauv txhua qhov chaw, raws li muaj cov khoom siv tshwj xeeb . Muab nws lub hom phiaj siv, lub raj yuav muaj magnesite lossis fluorspar. Yog tias nws yog qhov yuav tsum tau ua cov khoom siv rov ua dua tshiab, nws tsim nyog siv xaim, qhov twg muaj graphite thiab txhuas, vim tias lawv ua kom sov dua.

Qhov tsis zoo ntawm hom khoom siv vuam siv no yog tus nqi siab, qhov tshwj xeeb nqaim, qhov nyuaj ntawm kev vuam cov ntawv tuab dua ib thiab ib nrab hli.

Thawj qhov yuav tsum tau muaj

Flux cored (flux) vuam hlau yog siv rau kev siv tshuab ib nrab tsis siv roj, thiab nws muaj lub ntsej muag tubular. Cov kab noj hniav sab hauv ntawm tus cwj pwm tau ntim nrog paj ntoos ntawm qhov tshwj xeeb muaj pes tsawg leeg. Lub hauv paus yog ib daim hlau polarized. Cov theem kawg ntawm kev tsim cov xaim no yog maj mam rub nws mus rau qhov xav tau qhov ntev.

Txhua hom flux cored hlau yuav tsum ua tau raws li cov hauv qab no:

• yaj tusyees thiab zam kev txaws ntau dhau;
• yuav tsum yog tus yam ntxwv ruaj khov thiab yooj yim hauv qhov tshwm sim ntawm hluav taws xob arc;
• slag tshwm sim thaum lub vuam txheej txheem yuav tsum tau muab faib ua tusyees thiab tsis nkag mus rau hauv cov nqaws;
• muaj qhov sib khi txawm tias tsis muaj qhov tawg, qhov hws.

Sib piv nrog cov xaim xaim

Vuam hlau tau muab faib ua ob peb hom, feem ntau ntawm cov uas tuaj yeem hu ua hmoov thiab khov. Txawm hais tias qee qhov sib txawv, ob tus cwj pwm tau siv ntau zaus . Hom hlau xaim muaj txheej txheej tooj liab, thiab nws kuj tseem tuaj yeem siv nrog cov pa roj inert, uas tsis tuaj yeem hais txog hom thib ob ntawm cov khoom siv vuam.

Ib qho ntxiv, kev tsim hluav taws xob-cored hlau yog dov ntawm ib txoj hlua hlau, dov nws nrog txoj hlua nrog ntxiv cov flux.

Cov xov hlau muaj tus nqi qis dua, tab sis nws tsis muaj qee qhov zoo ntawm flux cored, xws li:

• siv rau kev vuam ntsug nce toj ntsug;
• ua haujlwm nrog cov hlau galvanized thiab lwm yam nyuaj-rau-weld ntau yam;
• qhov tsis muaj peev xwm ntxiv ntau yam tshuaj hauv cov hlau.

Hom kev txheeb xyuas

Txhua tus kws tshaj lij yuav tsum paub tias niaj hnub no muaj ntau qib ntawm cov xaim hluav taws xob uas tuaj yeem siv rau kev txau cua sov, hluav taws xob arc hlau, hlau hlau thiab ntau yam ntxiv. Txiav txim los ntawm tus yam ntxwv ntawm ntau yam ntawm cov khoom siv vuam no, txhua qhov khoom muaj qhov tshwj xeeb txoj kab uas hla, cim, cov khoom siv rau lub plhaub, ntxiv rau txhuas, hlau lossis lwm yam txhaws.

Cov raj hlau tau muab faib ua cov duab ua ib puag ncig, uas cov ntug tau txuas nrog lub taub hau, nrog cov khoov tseem ceeb, thiab tseem muaj ntau yam.

Raws li qhov tshwj xeeb ntawm kev siv, cov cwj pwm hmoov tau muab faib ua ntau yam

Kev tiv thaiv roj

Hom xaim no yuav tsum tau kaw hla lub pas dej txuas. Rau lub hom phiaj no, argon lossis lwm yam roj inert tau siv. Cov pa roj av tiv thaiv tus yam ntxwv rau vuam feem ntau yog siv rau vuam carbon, cov hlau tsis tshua muaj hlau. Cov xaim no muaj qhov zoo hauv qab no:

• arc ruaj khov;
• yooj yim ntawm slag tawm los rau saum npoo;
• tsis muaj porosity;
• qib qis ntawm txau;
• simplicity ntawm slag liquidation.

Kev nkag mus tob yog qhov muaj nyob hauv cov kav dej no. Lawv siv yog xav tau thaum tsim cov pob qij txha ntawm cov pob qij txha thiab cov ces kaum, ntxiv rau kev sib tshooj thaum tsim cov qauv thiab cov kav dej los ntawm cov hlau.

Kev tiv thaiv tus kheej

Lub raj tiv thaiv tus kheej yog qhov kev xaiv zoo rau kev ua haujlwm semiautomatic hauv txhua qhov chaw, txawm tias nyob hauv qhov chaw. Cov khoom siv vuam no tsis xav tau kom muaj cov hom khoom siv ntxiv . Thaum ua haujlwm ntawm chav dej, pom huab los ntawm cov nqi roj tau pom. Raws li qhov txiaj ntsig ntawm kev siv tus kheej tiv thaiv xaim, ib qho txawm tias siv tau rau cov nqaws, thaum nws zais cov pob qij txha kub nrog lub dav dav. Hom xaim hluav taws xob xaim no tau pom nws daim ntawv thov thaum siv cov khoom siv hauv cov xwm txheej tsis tau hloov pauv. Nrog nws txoj kev pab, cov khoom siv txhuas tau muab pov tseg, nrog rau lawv cov hlau phom.

Cov hmoov uas muaj nyob hauv cov xaim hluav taws xob tuaj yeem ua cov haujlwm hauv qab no:

• alloying;
• deoxidation;
• stabilization ntawm hluav taws xob arc;
• ua kom yooj yim ntawm kev tsim cov khoom sib xws ntawm cov nqaws.

Nyob ntawm qhov muaj pes tsawg leeg ntawm cov hmoov, cov hlau thaiv tus kheej tuaj yeem yog:

• fluorite;
• fluorite-carbonate;
• rutile;
• rutile fluorite;
• organic chiv.

Nta ntawm kev siv

Kev siv cov cuab yeej semiautomatic thaum siv vuam ua rau muaj kev thov nrawm ntawm cov nqaws, vim tias cov hmoov hom khoom tau pub yam tsis cuam tshuam. Txij li cov pa roj av yuav tsis tuaj yeem ua haujlwm tas li, txoj hauv kev no tso cai rau koj txuas cov hlau hauv qhov chaw tiv thaiv roj . Xyaum txhua tus yuav tuaj yeem ua noj kom raug yam tsis muaj roj, thaum tshwj xeeb yuav tsum tau them nyiaj tshwj xeeb rau qhov chaw thiab teeb tsa. Hauv kev siv tshuab ua hlau, nws yog qhov yuav tsum tau coj mus rau hauv tus account qhov ntsuas tam sim no, qhov sib txawv, nrog rau cov txheej txheem ua kom raug.

Muaj qee qhov nuances hauv kev ua haujlwm nrog cov cuab yeej hlau no, uas tus tswv yuav tsum tsis txhob hnov qab . Txhawm rau ua tiav cov hlau thiab tsim cov nqaws, nws tsim nyog npaj cov tiaj tiaj. Thaum ua haujlwm nrog cov khoom siv semiautomatic, qhov no tuaj yeem ua tiav los ntawm kev hloov kev sib cuag hauv sab hauv ntawm chav tsev.

Cov xaim uas mus rau lub qhov hluav taws kub yuav tsum tau txuas nrog rau hauv av cable, thiab cov xov hlau sib txawv yuav tsum tau hloov mus rau lub davhlau ya nyob twg.

Lub ntsiab lus tseem ceeb hauv kev ua haujlwm yog kev teeb tsa cov menyuam uas sib haum nrog txoj kab uas hla ntawm cov hlau siv. Ntawm sab ntawm cov menyuam muaj cov ntaub ntawv hais txog qhov dav ntau . Cov menyuam uas muaj hom txav tau yuav tsum tsis txhob nruj nruj, vim tias cov hlau muaj tus yam ntxwv zoo ib yam, thiab qhov xwm txheej no tuaj yeem ua rau nws qhov kev hloov pauv lossis tshwm sim ntawm qhov txhaws hauv cov kab hluav taws xob.

Rau qhov ntawd yog li ntawd cov xov hlau tsis muaj kev cuam tshuam, koj yuav tsum tau tshem tawm cov lus qhia nyob ntawm lub qhov hluav taws xob ntawm qhov ntsuas siab . Nws cov cua tau ua tiav tom qab cov khoom siv tau tshwm sim los ntawm qhov kawg ntawm cov channel no. Txoj kab uas hla ntawm qhov taub yuav tsum tau sib phim rau qhov loj ntawm cov hlau, raws li lub qhov loj tuaj yeem ua rau nws nyuaj rau tswj lub arc. Tsis muaj roj siv thaum lub sijhawm txheej txheem no, yog li tsis siv lub taub hau yog xaiv tau. Txhawm rau kom cov tshuaj tsuag tsis lo rau qhov taub, nws yuav tsum tau txau nrog cov khoom tsim tshwj xeeb.

Thaum vuam nrog cov khoom siv xaim-cored hlau, txoj hlua yuav ib txwm nyob hauv kev tshuaj xyuas, yog li cov thev naus laus zis yuav zoo ib yam li cov qauv siv hluav taws xob.

Txij li cov hmoov tus cwj pwm ntawm kev siv vuam tsis muaj lub zog ua haujlwm thiab nruj, cov kws tshaj lij pom zoo siv lub tshuab tshwj xeeb, uas ua kom txuas ntxiv ntawm kev pub mis tsis siv neeg ntawm lub hauv paus.

Hauv cov txheej txheem ntawm vuam, muaj kev sib zog tsim ntawm slag, nws yuav tsum tau muab tshem tawm sai sai nrog txhuam hlau . Txwv tsis pub, slag tuaj yeem nkag mus rau thaj chaw ua haujlwm, uas yuav ua rau kev tsim cov khoom tsis xws luag thiab txo qis hauv cov khoom siv dag zog.

Flux-cored hlau tuaj yeem ua los ntawm cov hlau lossis ua kom puv puv, yog li ua tiav cov haujlwm ntawm cov roj. Kev siv cov yeeb yam no yuav ua rau cov khoom lag luam qis dua li ib txwm, tab sis qee qhov nws tsis tuaj yeem ua yam tsis muaj hmoov ntxiv.

Kev thauj cov thooj voos kheej kheej tsis yog ib txwm tsim nyog, yog li tus kws tshaj lij tuaj yeem siv cov xaim hluav taws xob xaim, piv txwv li, ntawm qhov siab lossis hauv qhov chaw tsis yooj yim . Raws li kev coj ua qhia, rau kev siv hauv tsev nrog kev ua haujlwm me me, qhov kev xaiv vuam no hloov pauv kom kim. Tab sis hauv kev tsim khoom, thaum siv cov raj hmoov, kev vuam nrawm thiab ua tau zoo tuaj yeem nqa tawm txawm tias cov kws tshaj lij tsis muaj kev paub dhau los. Nws kuj tseem pom tias qhov vuam siv tau tuaj yeem them nyiaj thaum thov cov nqaws ntev, txwv tsis pub muaj pov tseg ntau.