Dab tsi yog qhov ua tau zoo xav tau ntawm refractory rauv tawg rauv taws? Raws li kev taw qhia, txheej txheej sab hauv yog hais txog txheej txheem ntawm chav sib tsoo ntawm cov hluav taws xob, nrog rau lub thawv cua sov, cua sov phab ntsa thiab cua sov hauv qab. Nws ua haujlwm ncaj qha cuam tshuam rau qhov zoo ntawm cov hlau thiab lwm yam kev lag luam thiab kev ntsuas. Xyoo tsis ntev los no, vim yog kev ntxiv dag zog thiab kev tsim kho tshiab ntawm EAF steelmaking, nws tseem yog qhov yuav tsum tau txhim kho cov ntaub hauv ob sab phlu thiab masonry
Muaj ob hom refractories siv nyob rau hauv chav txheej hluav taws xob: qhov yooj yim thiab kua qaub. Tam sim no, cov hluav taws xob hluav taws xob feem ntau siv cov hauv ob sab phlu, thaum cov kua qaub ua kab hluav taws xob yog tsuas yog siv los tsim cov hlau castings lossis grey cam khwb cia hlau.
Ua tau raws ntawm refractory rau hluav taws xob rauv hauv ob sab phlu:
1. Nws yuav tsum muaj hluav taws txaus ua haujlwm thiab thauj cov taw tes muag muag. Vim hais tias nyob rau hauv kev txiav txim ntawm arc, qhov kub nyob sab hauv tsev ntawm qhov sib txawv ntawm cov cua sov hauv ob sab phua tuaj yeem ncav cuag 1500-1800 ℃.
2. Nws yuav tsum muaj muaj zog slag tsis kam. Vim tias cov pa slag thiab cov pa luam yeeb nkag mus rau hauv txheej los ntawm lub qhov hws thaum kub, qhov refractories tau yaj, txheej thiab tev tawm.
3. Nws yuav tsum muaj zoo thermal poob siab ua hauj. Vim tias nyob hauv cov txheej txheem steelmaking, qhib lub qhov cub ua kom sov lub qhov rooj, nqa lub tshuab ua kom lub qhov cub npog thiab lwm yam yuav ua rau qhov kub ntawm qhov hluav taws xob refractory hloov pauv sai, uas yuav ua rau tev tawm thiab tawg thiab ua ntej puas tsuaj ntawm lub tshuab ua kom sov.
4. Nws yuav tsum muaj lub zog txaus, vim hais tias cov roj ntsha muaj kev cuam tshuam thiab tshee thaum lub sijhawm them nyiaj, thiab ntxuav los ntawm hlau, slag thiab cua ntws thaum lub sijhawm kub.
5. Lub thermal conductivity yuav tsum me me thiab qhov conductivity yuav tsawg.
Cov ntaub ntawv siv hluav taws xob feem ntau siv rau hauv cov hluav taws xob ua cua sov muaj xws li magnesia cib, dolomite cib, siab alumina cib, siliceous refractory cib thiab magnesia knotting cov khoom, thiab lwm yam Vim tias qhov chaw ua haujlwm sib txawv ntawm txhua qhov ntawm lub qhov cub hluav taws xob, cov khoom siv refractories siv yog txawv.
