Container board kev taw qhia

Raws li ib qho tseem ceeb ntawm cov hlau phaj, cov thawv ntawv ua lub luag haujlwm tseem ceeb hauv kev lag luam niaj hnub. Vim lawv cov tshwj xeeb muaj pes tsawg leeg thiab cov khoom, lawv tsuas yog siv los tsim cov hlab ntsha siab kom ua tau raws li cov kev cai nruj, kub thiab corrosion kuj nyob rau hauv ntau yam kev lag luam scenarios.

Tshwj xeeb muaj pes tsawg leeg thiab kev ua tau zoo

Cov tshuaj muaj pes tsawg leeg ntawm cov thawv ntawv yog ua tib zoo tsim los xyuas kom meej tias lawv muaj kev ua tau zoo heev. Ntxiv rau cov ntsiab lus tseem ceeb, cov ntsiab lus alloy xws li chromium, npib tsib xee, molybdenum, thiab vanadium raug ntxiv raws li qhov sib txawv siv ib puag ncig thiab kev ua tau zoo. Qhov sib ntxiv ntawm cov ntsiab lus no tuaj yeem txhim kho lub zog, toughness, corrosion kuj thiab kub tsis kam ntawm cov thawv ntawv, ua rau lawv haum rau ntau yam kev ua haujlwm nyuaj.

Nyob rau hauv cov nqe lus ntawm mechanical zog, thawv phaj muaj zoo heev zog thiab toughness. Lub zog siab ua rau lawv tiv taus siab loj yam tsis muaj deformation lossis tawg; zoo toughness tuaj yeem zam kev tawg tawg nyob rau sab nraud xws li kev cuam tshuam lossis kev co, ua kom muaj kev nyab xeeb ntawm cov khoom siv. Nyob rau tib lub sijhawm, nws qhov kev ua haujlwm vuam zoo thiab kev ua haujlwm ua tau yooj yim ua rau cov hlab ntsha siab ntawm ntau cov duab thiab cov lus qhia kom tau raws li kev xav tau ntawm engineering.

Kev nplua nuj thiab ntau yam kev faib tawm

Raws li cov qauv sib txawv, cov thawv ntim khoom tuaj yeem muab faib ua ntau txoj hauv kev. Raws li lub hom phiaj, nws tuaj yeem muab faib ua lub siab dav dav hlau, tsis tshua muaj siab siab nkoj steel, kub siab siab nkoj steel, stainless hlau puas steel phaj, thiab lwm yam. General siab nkoj steel yog haum rau nruab nrab thiab ib txwm kub, nruab nrab thiab tsis tshua muaj siab ib puag ncig, thiab yog cov feem ntau lug siv cov khoom siv yooj yim; Tsis tshua muaj kub siab lub nkoj steel muaj qhov kub thiab txias toughness thiab yog haum rau qhov kub thiab txias kev pab cuam ib puag ncig; kub siab siab nkoj steel tuaj yeem tswj kev ua haujlwm ruaj khov hauv qhov kub thiab txias thiab ua tau raws li qhov yuav tsum tau ua ntawm kev ua haujlwm kub kub; stainless hlau composite steel phaj sib txuas cov corrosion kuj ntawm stainless hlau thiab lub zog ntawm cov hlau zoo tib yam, thiab yog haum rau scenes nrog tshwj xeeb yuav tsum tau rau corrosion kuj.

Raws li cov tshuaj muaj pes tsawg leeg, cov thawv ntawv tuaj yeem muab faib ua cov pa roj carbon steel thawv daim hlau, cov hlau tsis muaj hlau tsis tshua muaj steel thawv phaj thiab stainless hlau thawv ntawv. Cov pa roj carbon steel thawv phaj muaj tus nqi qis thiab kev ua haujlwm zoo; Tsawg alloy steel thawv daim hlau tau txhim kho lub zog, toughness thiab corrosion kuj los ntawm kev ntxiv cov ntsiab lus alloy; stainless hlau thawv phaj feem ntau yog siv nyob rau hauv kev lag luam uas tsis tshua muaj siab corrosion kuj yuav tsum tau xws li tshuaj lom neeg kev lag luam thiab zaub mov vim lawv zoo heev corrosion kuj.

Dav daim ntawv thov teb

Cov thawv ntim khoom muaj ntau yam kev siv thiab ua lub luag haujlwm tseem ceeb hauv kev lag luam xws li roj av, tshuaj lom neeg kev lag luam, chaw nres tsheb fais fab, boilers, thiab lwm yam. Hauv kev lag luam petrochemical, nws yog siv los tsim cov khoom siv xws li reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, thiab liquefied gas tanks. Cov cuab yeej siv no yuav tsum tau ua haujlwm ntev nyob rau hauv cov xwm txheej hnyav xws li kub siab, siab siab, thiab muaj zog corrosion. Kev ua haujlwm siab ntawm cov thawv ntawv muab kev ntseeg tau zoo rau lawv txoj haujlwm nyab xeeb thiab ruaj khov.

Nyob rau hauv lub tshav pob ntawm cov chaw nres tsheb fais fab thiab boilers, cov thawv ntawv yog siv los tsim cov khoom tseem ceeb xws li cov nruas boiler thiab nuclear reactor siab hlab ntsha. Boiler nruas yuav tsum tiv taus qhov kub thiab txias siab, uas yuav tsum tau muaj zog heev thiab kub-kub tsis kam ntawm cov ntaub ntawv; nuclear reactor siab hlab ntsha muaj feem xyuam rau kev ua haujlwm nyab xeeb ntawm cov chaw tsim hluav taws xob nuclear, thiab yuav luag cov qauv nruj yog tsim los ntawm kev ua tau zoo thiab kev ua haujlwm ntawm cov thawv ntawv.

Tsis tas li ntawd, nyob rau hauv cov chaw muag tshuaj, khoom noj khoom haus, kev tiv thaiv ib puag ncig thiab lwm yam kev lag luam, lub thawv phaj kuj tseem siv los tsim ntau yam kev khaws cia thiab cov hlab ntsha kom tau raws li kev lag luam cov kev cai tshwj xeeb rau kev tu cev, kev tiv thaiv corrosion, thiab lwm yam.

Kev xa khoom sib txawv

Kev xa khoom ntawm cov thawv ntawv feem ntau suav nrog kev kub dov, tswj dov, normalizing, normalizing + tempering, tempering + quenching (tempering), lwm yam. Nyob rau hauv lub xeev kub-dov, tus nqi ntawm cov hlau phaj yog tsawg, tab sis cov uniformity ntawm kev ua tau zoo kuj tsis zoo; tswj dov tuaj yeem kho cov nplej thiab txhim kho lub zog thiab tawv ntawm cov phaj steel los ntawm kev tswj cov txheej txheem dov tsis zoo; normalizing tuaj yeem ua rau cov qauv ntawm cov phaj hlau tsis sib xws thiab txhim kho cov khoom siv kho tshuab; normalizing + tempering tuaj yeem tshem tawm kev ntxhov siab sab hauv, txhim kho toughness thiab seem stability; quenching thiab tempering tuaj yeem ua rau cov phaj hlau tau txais kev sib xyaw zoo tshaj plaws ntawm lub zog siab thiab zoo toughness.

Kev xaiv lub xeev tsim nyog yuav tsum tau xav txog ntau yam xws li kev siv, kev siv tshuab thiab tus nqi ntawm lub thawv. Piv txwv li, rau cov hlab ntsha siab uas raug rau siab dua thiab kev cuam tshuam, feem ntau siv lub xeev ntawm quenching thiab tempering kho; thaum rau qee lub thawv uas muaj kev nkag siab ntau dua rau tus nqi thiab muaj qhov yuav tsum tau ua haujlwm tsawg, cov thawv kub dov los yog cov thawv ntim ib txwm tuaj yeem tsim nyog dua.