Nqus Hluav Taws Xob Rauv

Cov txheej txheem ntws ntawm Nqus Hluav Taws Xob Rauvyog cov txheej txheem smelting precision ua nyob rau hauv ib puag ncig lub tshuab nqus tsev, ua raws cov kauj ruam ntawm kev npaj cov khoom, melting, refining, alloying, thiab pouring.

(1) Kev npaj cov khoom siv thiab them nyiaj ntawmNqus Hluav Taws Xob Rauv

Tag nrho cov khoom siv raw, suav nrog cov hlau tseem ceeb thiab cov khoom siv alloying, yuav tsum raug tshem tawm xeb thiab degreasing kev kho mob, thiab yuav tsum qhuav kiag li. Txhua qhov dej noo nkag mus rau hauv lub tshuab nqus tsev yuav ua rau tawg thaum lub sij hawm melting, cuam tshuam rau kev nyab xeeb thiab zoo. Cov txheej txheem ntawm kev thauj khoom yuav tsum nruj me ntsis ua raws.

(2) Lub tshuab nqus tsev vacuum thiab melting

Tom qab them nyiaj tiav,Nqus Hluav Taws Xob Rauv raug kaw thiab lub tshuab nqus tsev twj tso kua mis pib pib khiav tawm. Lub kaw lus feem ntau muaj peb lub- theem twj tso kua mis teeb muaj xws li lub tshuab twj tso kua mis, lub hauv paus twj tso kua mis, thiab lub twj tso kua mis diffusion, uas evacuates lub cub tawg mus rau lub siab nqus tsev vacuum. Raws li cov txheej txheem kev khiav hauj lwm, lub zog cua sov tsuas yog siv tau thaum lub tshuab nqus tsev mus txog qhov muaj nqis. Nyob rau theem pib ntawm melting, kom tsis txhob txaws los ntawm kev tso tawm sai ntawm cov roj seem ntawm cov nqi, lub zog siab tshaj plaws feem ntau tsis siv tam sim; Hloov chaw, lub zog cua sov yog maj mam nce raws li qhov tshwm sim ntawm cov nqi hluav taws xob. Raws li qhov kub nce, cov nqi hlau melts nyob rau hauv cov nyhuv ntawm induced eddy tam sim no. Cov txheej txheem ntawmNqus Hluav Taws Xob Rauv yog nrog los ntawm electromagnetic nplawm, uas pab txhawb rau thawj homogenization ntawm lub pas dej molten kub thiab muaj pes tsawg leeg. Thaum qhov chaw ntawm lub pas dej molten ua kom sov thiab tsis muaj qhov pom tseeb ntawm cov pa npuas khiav, nws qhia tias qhov kawg ntawm lub melting theem thiab cov txheej txheem tuaj yeem txav mus rau theem tom ntej.

(3) Refining: Ua kom huv si sib sib zog nqus

Lub sij hawm refining ntawmNqus Hluav Taws Xob Rauv yog lub sijhawm tseem ceeb uas lub tshuab nqus tsev melting exerts nws tshwj xeeb zoo thiab txhim khu cov khoom purity. Thaum lub sijhawm no, lub cub tawg yog khaws cia ntawm qhov kub thiab txias siab, feem ntau ua tiav ob txoj haujlwm: Degassing - siv lub tshuab nqus tsev kom tshem tawm ntau npaum li qhov ua tau yaj cov pa phem xws li hydrogen, oxygen, thiab nitrogen los ntawm cov hlau molten. Kev tshem tawm impurity - ua rau muaj teeb meem kab mob nrog lub siab vapor siab, xws li txhuas, tin, bismuth, thiab antimony, cais tawm ntawm cov hlau molten los ntawm volatilization. Lub caij no, cov neeg ua haujlwm ua qhov ntsuas kub thiab ntsuas ntsuas thaum lub sijhawm no, thiab tuaj yeem pib hluav taws xob nplawm hluav taws xob kom muaj zog ua kom lub pas dej molten, txhawb homogenization ntawm qhov sib xyaw thiab qhov kub thiab txias, thiab ua kom nrawm nrawm ntawm kev sib sau ua ke thiab flotation ntawm kev suav.

(4) Alloying

Thaum refining yuav tsum tau ntsib, tus txheej txheem ntawmNqus Hluav Taws Xob Rauv nkag mus rau theem alloying, nyob rau hauv uas cov ntsiab lus reactive uas yog yooj yim oxidized los yog volatile (xws li Al, Ti, B, Mg, thiab lwm yam) yog ntxiv rau lub pas dej ua ke molten kom precisely kho qhov kawg alloy muaj pes tsawg leeg. Yog tias cov ntsiab lus no tau ntxiv thaum lub sij hawm melting thaum ntxov, lawv yuav yooj yim ploj vim oxidation. Yog li ntawd, txoj kev khiav hauj lwm yog raws li nram no: ua ntej, ib tug inert roj (xws li argon) yog qhia rau ib tug tej yam siab rau kev tiv thaiv, ces lub molten hlau kub yog tsim nyog, thiab lub pre- npaj alloying ntsiab yog ntxiv rau lub pas dej ua ke molten los ntawm lub tshuab nqus tsev feeder. Tom qab ntxiv, luv luv - lub sijhawm ua kom muaj zog nplawm yog ua kom ntseeg tau tias cov khoom tshiab tau muab faib ua tib yam hauv cov hlau molten.

(5) Pouring thiab Unloading ntawmNqus Hluav Taws Xob Rauv

Tom qab alloying tiav thiab ob qho tib si muaj pes tsawg leeg thiab qhov kub thiab txias tau dhau los ntawm kev tshuaj xyuas, cov txheej txheem nkag mus rau theem kawg pouring. Raws li qhov yuav tsum tau ua ntawm lub cub tawg thiab casting, cov hlau molten tuaj yeem nchuav rau hauv cov pwm pwm, dej -cov pwm txias, lossis cov pwm xuab zeb los ntawm tilting lub crucible los yog lub cub tawg. Cov txheej txheem pouring kuj feem ntau yog nqa tawm hauv lub tshuab nqus tsev lossis chaw tiv thaiv. Tom qab nchuav tiav lawm, lub tshuab cua sov yog muab tua, thiab tom qab lub casting tau raug tsim kom txias rau hauv lub cub tawg los yog nyob rau hauv qhov chaw tiv thaiv, lub tshuab nqus tsev tuaj yeem tso tawm thiabNqus Hluav Taws Xob Rauvqhib kom tshem tawm cov khoom tiav.

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