Taw qhia txog qhov sib txawv ntawm Ordinary Steel thiab Special Steel

Taw qhia txog qhov sib txawv ntawm Ordinary Steel thiab Special Steel

Cov kav hluav taws xob cua sov ua los ntawm cov khoom siv hlau sib txawv, thiab tsis tuaj yeem ua qhov muag tsis pom kev rau tus nqi pheej yig, ua rau lub neej luv luv ntawm cov kav hluav taws xob cua sov. Qhov peb xav tau tshaj plaws yog kev siv nyiaj ntau dua, yog li peb yuav tsum ua kom peb cov kev paub dhau los thiab txhawb peb tus kheej. Ntawm no peb yuav qhia txog cov khoom siv feem ntau siv rau kev tsim hluav taws xob cua sov kav: acidic refractory steel, alkaline refractory steel, oxide khoom, nruab nrab refractory steel, refractory compound khoom, thiab high-temperature composite khoom. Feem ntau peb xa mus rau nws li cov hlau zoo tib yam thiab cov hlau tshwj xeeb.

Taw qhia rau cov hlau zoo tib yam:

Cov khoom siv raw siv xws li hluav taws xob cua sov raj ua los ntawm silica, khib nyiab silica cib, thiab lwm yam. Nws cov silicon cib muaj zog acid tsis kam thiab slag corrosion kuj, tab sis muaj kev cuam tshuam rau corrosion los ntawm alkaline slag. Lub load softening kub yog siab, ze rau nws refractory degree, thiab lub ntim tsis luv tom qab rov calcination. Silicon bricks thiab av nplaum cib yog siv ntau heev. Silicon bricks yog cov khoom tiav uas muaj ntau dua 93% SiO2 silica. Txawm tias me ntsis o, tab sis nrog tsis zoo thermal shock kuj. Silicon bricks feem ntau yog siv rau hauv cov khoom siv thermal xws li coke ncu, iav furnaces, thiab acid steelmaking furnaces. Av nplaum cib muaj 30% mus rau 46% aluminium oxide, nrog cov av nplaum refractory ua cov khoom siv raw, nrog rau qhov hluav taws kub ntawm 1580 txog 1770 degree thiab zoo thermal poob siab. Lawv yog cov tsis muaj zog acidic refractory cov ntaub ntawv thiab muaj corrosion kuj rau acidic slag, ua rau lawv dav siv. Tam sim no, lawv yog cov khoom loj tshaj plaws ntawm cov khoom siv refractory steel thiab koom rau hauv qeb ntawm cov khoom siv hlau.

Taw qhia rau Cov Hlau Tshwj Xeeb:

Cov ntsiab lus ntawm corundum nce nrog ntxiv ntawm alumina cov ntsiab lus, thiab lub ntsiab crystalline theem nyob rau hauv siab alumina tiav cov khoom yog mullite thiab corundum. Corundum cov khoom uas muaj tshaj 95% alumina yog cov khoom zoo tshwj xeeb refractory hlau nrog ntau yam kev siv. Lub ntsiab crystalline theem ntawm chromium cib ua los ntawm chromium ore yog chromite. Lub corrosion kuj ntawm steel slag yog zoo, tab sis lub thermal poob siab kuj tsis zoo, thiab lub high-temperature load deformation kub yog qis dua. Chromium magnesium bricks ua los ntawm chromium ore thiab magnesia nyob rau hauv sib txawv proportions muaj zoo thermal poob siab kuj thiab feem ntau yog siv raws li alkaline sab saum toj cib rau qhib hearth furnaces.

Ua hluav taws xob cua sov raj nrog magnesite ua lub ntsiab siv lead ua theem. Cov khoom siv tseem ceeb rau kev tsim cov pob zeb magnesium xws li magnesite, seawater magnesia, thiab magnesium hydroxide muab rho tawm los ntawm cov dej hiav txwv uas yog calcined ntawm qhov kub thiab txias. Nws muaj kev tiv thaiv zoo rau alkaline slag thiab hlau slag. Lub melting point ntawm ntshiab magnesium oxide yog siab li 2800 degree, sawv cev los ntawm magnesium raws li cov khoom tiav. Muaj ntau tshaj 80% mus rau 85% magnesium oxide. Yog li ntawd, qhov hluav taws kub tsis kam ntawm magnesium bricks yog siab dua li ntawm av nplaum cib thiab silica cib. Txij li thaum nruab nrab -1950s, kev tsim cov khoom siv alkaline refractory tau maj mam nce vim yog kev siv oxygen tshuab converter steelmaking thiab siv cov alkaline qhib hearth rauv saum, thaum cov av nplaum cib thiab silica cib tau raug txo. . Alkaline refractory cov ntaub ntawv yog tsuas yog siv nyob rau hauv oxygen tshuab converters, qhib hearth furnaces, hluav taws xob furnaces, non-ferrous hlau smelting, thiab ib co khoom siv kho cua sov, tag nrho cov uas siv tshwj xeeb steel cov ntaub ntawv.

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