** 1. Dab tsi kim dua, kub lossis txias rolled steel? **
Txias rolled steel yog kim dua kub rolled steel. Qhov no vim tias cov txheej txheem no txias uas cuam tshuam cov kauj ruam ntxiv tom qab pib kub. Cov hlau yog ua tiav nyob rau hauv chav tsev kub, uas yuav tsum muaj zog ntau dua, sijhawm, thiab khoom siv tshwj xeeb. Qhov kev ua lag luam ntxiv no tau ua rau cov khoom lag luam nrog kev tiv thaiv kom ntev, thiab muaj zog ntxiv, txhua yam uas ua rau cov nqi siab dua.
** 2. Puas yog 1020 steel kub dov los yog cold so? **
1020 steel yog feem ntau muab khoom rau hauv ** kub dov ob ** mob. Koj tuaj yeem, txawm li cas los xij, kuj tseem yuav nws li ** dov txias ** (lossis txias kos) hlau. Tus "1020" hais txog cov tshuaj lom neeg muaj pes tsawg leeg (cov pa roj carbon hlau nrog 0.20% carbon), thaum "kub dov" lossis "txias dov" piav qhia txog cov txheej txheem sib. Yog li, nws muaj nyob rau hauv ob daim ntawv, tab sis tus qauv, dav muaj Tshuag feem ntau yog kub kub.
** 3. Puas yog 1008 steel kub dov los yog cold so? **
Zoo ib yam li 1020, 1008 steel (qis- cov hlau hlau nrog 0.08% carbon) yog feem ntau pom li ** kub dov **. Nws tseem yog ntau cov txheej txheem ua ntej rau ** ntawv txias ** Cov ntaub ntawv thiab cov tawv nqaij thiab cov kab mob carbon qis thiab zoo heev} kev ua haujlwm. Yog li, nws tsim nyob rau hauv ob txoj kev, tab sis nws yog ib tug nquag kawm rau txias- rolled cov khoom.
** 4. Yog 1018 thiab 1020 hlau ib yam? **
Tsis yog, 1018 thiab 1020 hlau tsis zoo ib yam. Lawv yog ob qho tib si qis - Cov hlau carbon, tab sis lawv muaj qhov sib txawv ntawm lawv cov ntsiab lus carbon:
* ** 1018 ** muaj cov ntsiab lus carbon ntau ntawm 0.15-0.20%.
* ** 1020 ** muaj cov ntsiab lus carbon ntau ntawm 0.18-0.23%.
Thaum lawv cov pa roj carbon ntau sib tw sib tshooj me ntsis, 1020 feem ntau muaj cov ntsiab lus muaj roj carbon ntau dua. Qhov no me me ua rau 1018 me ntsis yooj yim rau tshuab thiab me ntsis ntau ductile, thaum 1020 tuaj yeem ua kom muaj zog me ntsis los ntawm kev kho cua sov. Rau ntau daim ntawv thov, lawv tuaj yeem siv sib hloov pauv, tab sis rau cov ntawv thov precision, cov qib tshwj xeeb yog xaiv raws li cov khoom uas xav tau.
** 5. Yog 1045 steel kub dov? **
Yog lawm, 1045 hlau (ib nrab -} cov roj carbon hlau nrog 0.45% carbon) yog feem ntau muab rau hauv ** kub dov rau ** Kub. Qhov no yog cov qauv tshaj plaws thiab kev lag luam rau qib no, feem ntau siv rau qhov uas yuav tau machined lossis cua sov- kho. Nws tseem muaj li ** CIA TXIAS TXIAS NKAUJ ZOO TSHAJ PLAWS TAU TXHUA YAM THIAB QHOV TSWJ TSEEM CEEB, tab sis nws cov qauv tseem ceeb thiab feem ntau yog kub.
