Dab tsi yog qhov sib txawv ntawm gb 5310 25 mng steel yeeb nkab thiab 20g steel yeeb nkab
Ob qho tib si 25mng steel yeeb nkab thiab 20g steel steel hauv GB5310 yog Seamless Steel Kave, tab sis lawv muaj qee qhov sib txawv hauv cov khoom siv tshuaj lom neeg, cov khoom siv mechanical thiab cov chaw thov:
Tshuaj lom neeg cov tshuaj:
25MNG: muaj cov ntsiab lus manganese siab dua (li 1.2% {3}}. 6% manganese), uas pab txhim kho lub zog thiab tawv ntawm cov hlau.
20G: Lub ntsiab lus tseem ceeb yog cov pa roj carbon thiab manganese, nrog cov ntsiab lus roj carbon ntau, zoo nkauj thiab vuam cov khoom.
Cov Khoom Siv Neeg Kho Tshuab:
25MNG: Cov npe tau lees paub lub zog yog ntau dua lossis muaj nqi tshaj plaws rau 31Tsmpa, tus muaj txiaj ntsig zoo dua lossis muaj txiaj ntsig yog 13 xyoos, thiab kev sib tw hla dhau yog 21%.
20G: Feem ntau muaj kev ua tau zoo vuas zoo nkauj, tab sis cov lus tshaj tawm lub zog thiab lub zog qis dua li 25mng.
Kev Kho Cua Sov:
25mng: Kev kho cua sov muaj li ib txwm muaj, annealing, quenching thiab tempering cov txheej txheem los txhim kho cov neeg kho tshuab thiab ua kom ntev ntawm cov khoom siv.
20G: Feem ntau kub dov los yog normalized, haum rau qhov kub thiab kub ib puag ncig.
Chaw Thov:
25MNG: Vim nws lub zog siab thiab tawv tawv, nws yog feem ntau siv los tsim cov cua sov ua khoom noj cua sov, supereaters thiab reseaters ntawm siab-siab boilers.
20G: Siv dav los tsim cov thawv raj thiab cov qauv txheej txheem ntawm ntau hom ntawm cov boilers, tshwj xeeb tshaj yog hauv nruab nrab thiab qis siab boilers.
Hauv cov ntsiab lus, 25mng steel kav muaj lub zog zoo dua thiab kev kho nruj dua 20g steel hlau vim tias ib puag ncig kev siv cua sov, thiab tsim nyog rau ib puag ncig uas tau yuam kev thiab kub. 20G cov kav hlau tau siv dav hauv kev tsim cov khoom nruab nrab thiab qis dua lub siab boilers vim lawv cov khoom siv zoo thiab muaj cov khoom siv kho mob hnyav.