Vim li cas npuas tshwm thaum lub sijhawm tsim khoom?

Nws ntseeg tau tias ntau tus neeg tau pom cov kav dej square, tab sis cov npuas tau yooj yim tshwm sim thaum lub sijhawm tsim khoom. Ces yog vim li cas? Hnub no cov tuam txhab lag luam yuav qhia rau koj tias muaj dab tsi tshwm sim?
GI cev
Ua ntej, - cov pa yaj yog nyob rau hauv lub xeev supersaturated; Hauv - thib ob, qhov sib npaug ntawm qhov sib cais ntawm qhov sib txawv ntawm cov pa roj ntau hauv cov npuas yog ntau dua li qhov siab sab nraud ua rau cov npuas; Hauv - thib peb, muaj cov tub ntxhais ua npuas ncauj uas tshaj tus nqi pib. Nyob rau hauv qhov tseeb casting tej yam kev mob, txij li thaum lub yaj ib txwm muaj ib tug loj tus naj npawb ntawm non-metallic impurities, ob peb ua ke thiab npuas uas tsis khiav los ntawm cov txheej txheem purification, ib tug spontaneous npuas core yog yooj yim tsim nyob rau hauv lub yaj. Tsis tas li ntawd, txawm hais tias cov ntsiab lus hydrogen hauv cov yaj ua kom zoo yog qis dua qhov sib npaug ntawm qhov sib npaug, qhov kev faib tawm ntawm cov roj concentration thaum lub sij hawm solidification ua rau lub supersaturation ntawm cov ntsiab lus hauv zos hydrogen hauv cov kua ntawm cov ntug ntawm crystallization, uas ua rau tsim cov kav dej galvanized. Cov ntaub ntawv ua npuas ncauj tsim cov kev mob zoo. Cov npuas tuaj yeem tsim tau thaum lub siab hydrogen hauv cov kua ntawm cov ntug ntawm crystallization nce siab tshaj qhov siab sab nraud. Txawm li cas los xij, yog tias qhov buoyancy ntawm qhov tshwm sim npuas yog tsawg dua qhov adhesion ntawm cov khoom nto rau cov npuas, los yog qhov buoyancy tus nqi ntawm cov npuas yog tsawg tshaj li crystallization tus nqi ntawm cov ingot, cov npuas tseem nyob rau hauv lub ingot thiab ua ntxeem tau.
Gi - tub
Txhua txheej ntawm cov yeeb nkab tuab-walled muaj ib qho me me hla ntu thiab yuav tsum muaj cua sov me me. Cov chaw tsim khoom ntawm cov kav dej tuab-walled GNEE STEEL kuj welds txhua txheej hauv ob peb ntu. Txhua feem feem ntau yog txias. Qhov ntsuas kub tau rov qab los ntawm cov phaj hlau, thiab txhua zaus ib cheeb tsam nqaim ntawm cov yas deformation tshwm. Yog li, qhov nruab nrab qhov dav ntawm cov yas deformation cheeb tsam (piv txwv li, qhov loj ntawm qhov transverse narrowing) yog tsawg dua qhov nruab nrab ntawm cov txheej txheem sib txuas, thiab qhov ntev ntawm qhov nqaim me dua. Piv nrog oscillating vuam, uas tau sau ib zaug ua ke, nws muaj tsawg deformation. Cov yeeb nkab square - yog lub npe ntawm cov yeeb nkab square, uas yog cov yeeb nkab steel ntawm qhov sib npaug. Nws yog ua los ntawm sawb hlau, dov los ntawm kev ua haujlwm thev naus laus zis. Feem ntau, sawb hlau yog stripped, flattened, curled thiab welded rau hauv cov hlab puag ncig, uas yog dov mus rau hauv cov square tubes thiab ces txiav mus rau qhov ntev yuav tsum tau. Feem ntau 50 daim ib pob.
Tom qab mloog cov yeeb nkab tsim cov lus qhia, Kuv ntseeg tias peb yuav tsum tau nkag siab tias vim li cas cov pa npuas tshwm hauv cov txheej txheem tsim cov yeeb nkab, txoj cai? Yog tias koj xav tau kev pab, koj tuaj yeem tiv tauj online - kev pabcuam ntawm peb lub vev xaib - thiab peb yuav pab koj!