Kev sib piv cov khoom siv: 304 vs 321 vs 310S vs Incoloy800 rau cov roj cua sov
Cov khoom siv sib txawv ntawm cov roj cua kub cua sov ua rau tsis meej pem hauv kev xaiv kev lag luam. Cov khoom sib txawv ntawm cov hlau tsis muaj steel thiab cov hlau alloy muaj qhov sib txawv ntawm qhov kub thiab txias, kev tiv thaiv corrosion thiab cov nqi sib txawv. Kev xaiv qhov muag tsis pom kev ntawm qib siab tshaj - cov ntaub ntawv qib ua rau cov nqi pov tseg, thaum qis - cov khoom siv qib qis ua rau tsis ua haujlwm ntau zaus. Kev sib piv kev ua tau zoo ntawm cov ntaub ntawv tseem ceeb tuaj yeem tsim qhov kev xaiv pom tseeb rau cov roj cua kub cua sov, thiab kev sib tw thermocouple kub tswj tuaj yeem tso tawm qhov kev ua tau zoo ntawm txhua yam khoom.
304 stainless hlau yog cov khoom siv yooj yim tshaj plaws, tsim nyog rau qis - kub thermal roj ua haujlwm hauv qab 400℃. Cov khoom muaj qhov zoo tib yam oxidation tsis kam thiab tsis muaj intergranular corrosion kuj. Nyob rau hauv nruab nrab thiab siab - kub thermal roj ib puag ncig, carbide nag lossis daus thiab grain ciam corrosion yuav tshwm sim sai, nrog rau coking loj thiab oxidation tev tawm. Nws tsuas yog qhov zoo dua yog cov khoom siv qis, tab sis lub neej ua haujlwm luv luv thiab cov nqi hloov pauv tsis tu ncua ua rau nws tsis yooj yim rau kev ua haujlwm ntev -. Nws tsuas yog pom zoo rau qis-kub, tsis sib xws thiab qis- thauj khoom siv roj cua sov.
321 stainless hlau yog tus nqi universal - cov khoom siv tau zoo rau cov roj cua kub cua sov, npog qhov kub thiab txias hauv qab 550 degree. Cov titanium ntxiv cov ntsiab lus daws qhov mob tseem ceeb ntawm kev cuam tshuam ntawm cov hlau tsis muaj steel hauv thermal roj ib puag ncig. Piv nrog rau 304 cov khoom, kev tiv thaiv- xeb thiab tiv thaiv- kev ua haujlwm qaug zog tau zoo tuaj, thiab kev pabcuam lub neej tau nce los ntawm ob mus rau peb zaug. Tus nqi ntawm cov khoom siv nruab nrab thiab kev ua haujlwm ruaj khov ua rau nws yog qhov kev xaiv tseem ceeb rau feem ntau cov pa roj thermal roj tshuab, ntsuas qhov pib peev thiab tom qab cov nqi kho kom zoo.
310S stainless hlau yog siab -kub resistant cov khoom hloov kho dua tshiab, yoog rau kev ua haujlwm kub txog 650 degree. Sib txawv ntawm 321 cov khoom siv tsom rau kev tiv thaiv -intergranular corrosion, 310S cov khoom siv siab - kub oxidation kuj yog qhov tseem ceeb kom zoo dua. The high chromium-nickel alloy structure can form a dense high-temperature protective film, resisting ultra-high temperature oxidation and oil corrosion. Nws yog haum rau siab -kub tas li cua sov thermal roj tshuab, tab sis tsis muaj qhov ua tau zoo kom zoo dua thiab tus nqi siab dua hauv nruab nrab thiab qis- qhov kub thiab txias.
Incoloy 800 npib tsib xee-raws li alloy yog qhov siab -kawg kub resistant khoom, nrog rau qhov kub siab tshaj ntawm 750 degree. Cov khoom siv no muaj qhov zoo heev -kub creep tsis kam thiab cov qauv kev ruaj ntseg, uas tuaj yeem tswj xyuas cov khoom ua kom tiav nyob rau hauv ntev - lub sij hawm ultra- kub thiab siab - load ua haujlwm. Nws tuaj yeem tiv thaiv kev puas tsuaj ntawm siab -kub oxidation, roj corrosion thiab thermal stress, nrog rau lub neej ntev tshaj plaws ntawm tag nrho cov ntaub ntawv. Nws feem ntau yog siv rau siab -precision, siab- kub thiab ntev- voj voog cov khoom siv tsis cuam tshuam nrog kev ua haujlwm siab ruaj khov.
Cov ntaub ntawv raug txuam yuav tsum tau ua raws li qhov tseeb ntawm kev ua haujlwm kub thiab kev ua haujlwm ntawm cov roj thermal. Tsawg-xwm txheej kub siv 304 rau kev txuag nqi, qhov nruab nrab nruab nrab- qhov kub thiab txias qhov tseem ceeb yog 321, siab - qhov kub thiab txias hloov mus rau 310S, thiab siab heev- qhov kub thiab txias qhov xwm txheej tau txais Incoloy 800. Kev koom tes nrog cov khoom siv ua ntej qhov kub thiab txias tuaj yeem ua tau raws li qhov ntsuas kub zoo tshaj plaws. kev ua haujlwm zoo. Ib tus kws tshaj lij-rau-ib txoj kev xaiv cov khoom siv kom tsis txhob raug nqi pov tseg thiab kev pheej hmoo ua haujlwm.
