Lub luag haujlwm ntawm Borax hauv Hlau Smelting

Nyob rau hauv lub intricate thiab multifaceted ntiaj teb no ntawm Hlau Smelting, borax, tshuaj hu ua sodium tetraborate decahydrate, tawm los ua ib qho tseem ceeb thiab ntau yam khoom. Nws cov khoom siv tshuaj lom neeg tshwj xeeb thiab lub cev ua rau nws muaj ntau yam haujlwm tseem ceeb uas ua rau muaj txiaj ntsig zoo, zoo, thiab ua tiav ntawm cov txheej txheem hlau smelting.

Flux Action: Purifying thiab Facilitating Melting

Ib qho ntawm lub luag haujlwm tseem ceeb ntawm borax hauv hlau smelting yog ua raws li cov dej ntws. Nyob rau hauv cov txheej txheem smelting, ores thiab hlau scraps feem ntau muaj ntau yam impurities xws li silica, oxides, thiab lwm yam uas tsis yog hlau. Cov impurities no tuaj yeem ua rau cov ntsiab lus melting ntawm cov hlau sib tov, txo qhov fluidity ntawm cov yaj, thiab thaum kawg cuam tshuam rau qhov zoo ntawm cov khoom hlau kawg.

Borax, thaum ntxiv rau smelting nqi, reacts nrog cov impurities ntawm kub kub. Piv txwv li, nws reacts nrog silica, ib qho ntawm feem ntau impurities nyob rau hauv cov hlau ore. Cov tshuaj lom neeg cov tshuaj tiv thaiv ntawm borax thiab silica tsim ib tug borosilicate slag, uas muaj ib tug qis melting point tshaj cov hlau smelted thiab cov thawj impurities. Cov slag no ntab mus rau saum npoo ntawm cov hlau molten, ua kom yooj yim rau kev sib cais ntawm cov hlau los ntawm skimming. Los ntawm kev tshem tawm cov impurities no, borax pab ua kom huv huv cov hlau, txhim kho nws cov khoom siv, xws li lub zog, ductility, thiab conductivity.

Ntxiv mus, raws li ib tug flux, borax kuj txo qhov zuag qhia tag nrho melting point ntawm smelting sib tov. Qhov no tsis tsuas yog txuag lub zog los ntawm kev xav tau cov cua sov tsawg kom yaj cov hlau thiab lawv cov ntaub ntawv cuam tshuam tab sis kuj tso cai rau cov txheej txheem melting zoo dua. Cov kub melting qis kuj tseem tuaj yeem tiv thaiv kev tsim cov khoom sib txuas uas tsis xav tau lossis qhov degradation ntawm cov hlau cov khoom vim muaj cua sov ntau dhau.

Deoxidation: Tiv thaiv hlau kev ncaj ncees

Thaum lub sij hawm hlau smelting, hlau feem ntau raug rau cov pa oxygen nyob rau hauv lub cub tawg cua, uas ua rau tsim cov hlau oxides ntawm lawv qhov chaw. Cov oxides no tuaj yeem ua rau muaj qhov tsis xws ntawm cov khoom siv hlau kawg, xws li brittleness thiab txo corrosion kuj. Borax plays lub luag haujlwm tseem ceeb hauv deoxidation.

Borax tuaj yeem hnov ​​​​mob nrog hlau oxides nyob rau saum npoo ntawm cov hlau molten. Nws txo cov hlau oxides rov qab mus rau lawv lub xeev hlau, yog li tiv thaiv kev ncaj ncees ntawm cov hlau. Piv txwv li, hauv smelting ntawm tooj liab, borax tuaj yeem hnov ​​​​mob nrog tooj liab oxide tsim thaum lub sijhawm ua haujlwm. Los ntawm cov tshuaj tiv thaiv kab mob, nws hloov cov tooj liab oxide rov qab mus rau cov tooj liab ntshiab, tiv thaiv kev poob ntawm cov hlau muaj txiaj ntsig thiab ua kom cov khoom zoo dua qub.

Pwm Txheej thiab Tso Tawm Tus Neeg Saib Xyuas: Txhim kho Casting Zoo

Hauv cov txheej txheem hlau casting, uas yog ib feem tseem ceeb ntawm kev tsim hlau, borax tuaj yeem siv los ua pwm txheej thiab tso tawm tus neeg sawv cev. Thaum siv rau saum npoo ntawm pwm, borax tsim ib txheej nyias, tiv thaiv. Cov txheej no pab tiv thaiv cov hlau molten los ntawm adhering rau pwm nto, yooj yim tso tawm yooj yim ntawm cov cam khwb cia hlau ib feem thaum nws tau solidified.

Tsis tas li ntawd, borax txheej ntawm cov pwm tuaj yeem ua raws li thermal insulator rau qee qhov. Nws pab tswj cov cua txias ntawm cov hlau molten nyob rau hauv pwm, uas yog ib qho tseem ceeb heev rau kev ua tau zoo ib yam microstructure nyob rau hauv cov cam khwb cia hlau. Ib qho microstructure zoo dua ua rau cov khoom siv kho tshuab zoo dua qub ntawm cov khoom kawg, xws li kev txhim kho lub zog thiab qhov ruaj khov.

Alloying thiab Modifying Properties

Borax kuj tseem tuaj yeem ua rau cov txheej txheem alloying hauv cov hlau smelting. Txawm hais tias borax nws tus kheej tsis yog feem ntau suav tias yog ib qho kev sib xyaw ua ke hauv kev txiav txim siab nruj, nws tuaj yeem qhia boron rau hauv cov hlau matrix thaum smelting. Boron ntxiv rau cov hlau tuaj yeem muaj kev cuam tshuam loj rau lawv cov khoom.

Piv txwv li, nyob rau hauv zus tau tej cov steels, ntxiv ib me me ntawm boron, uas yog qhia los ntawm borax, yuav txhim khu lub hardenability ntawm cov hlau. Qhov no txhais tau hais tias cov hlau tuaj yeem ua kom sov tau zoo dua - kho kom ua tiav qib siab dua thiab lub zog. Boron tseem tuaj yeem txhim kho qhov hnav tsis kam thiab qaug zog ntawm cov hlau, ua rau lawv tsim nyog rau kev siv hauv qhov chaw muaj kev ntxhov siab, xws li hauv tsheb thiab aerospace kev lag luam.

Daim ntawv thov nyob rau hauv txawv hlau Smelting txheej txheem

Kev siv cov borax hauv cov hlau smelting tsis txwv rau ib hom hlau. Nws yog dav siv nyob rau hauv smelting ntawm ferrous hlau xws li hlau thiab hlau, nrog rau cov hlau uas tsis yog-ferrous xws li tooj liab, txhuas, thiab tooj dag.

Hauv kev tsim cov hlau thiab hlau, borax pab tshem tawm cov impurities ntawm hlau ore thiab cov khoom seem hlau, txhim kho cov purity thiab zoo ntawm cov khoom hlau kawg. Nyob rau hauv kev lag luam tooj liab smelting, nws plays lub luag hauj lwm tseem ceeb hauv deoxidation thiab impurity tshem tawm, kom ntseeg tau tias cov high- conductivity tooj liab xov hlau thiab lwm yam tooj liab-raws li cov khoom. Rau txhuas smelting, borax tuaj yeem pab ua kom huv ntawm cov txhuas txhuas los ntawm kev tshem tawm oxides thiab lwm yam kab mob, thiab nws kuj tuaj yeem siv rau hauv cov txheej txheem casting los txhim kho qhov chaw tiav ntawm txhuas castings.

Hauv kev xaus, borax yog ib yam khoom tseem ceeb hauv cov hlau smelting. Nws ua haujlwm raws li cov khoom siv hluav taws xob, deoxidizer, pwm txheej thiab tso tawm tus neeg sawv cev, thiab nws txoj kev koom tes rau alloying thiab hloov khoom vaj khoom tsev ua rau nws yog ib qho tseem ceeb hauv ntau yam hlau - smelting. Raws li cov hlau - kev lag luam kev lag luam txuas ntxiv hloov zuj zus thiab xav tau ntau dua - kev ua tau zoo, ntau txoj kev tsim khoom, lub luag haujlwm ntawm borax hauv hlau smelting yuav zoo li tseem ceeb heev, thiab kev tshawb fawb ntxiv yuav nthuav tawm ntau daim ntawv thov thiab cov txiaj ntsig ntawm qhov sib xyaw zoo kawg no.