1. Dab tsi yog qhov sib txawv ntawm qhov sib txawv thiab siab -cov pa roj carbon steel seamless kav?
Teb: Cov yeeb nkab carbon steel feem ntau (10 #, 20 #) muaj Brinell hardness (HB) ntawm 137-170, uas yog mos thiab yooj yim rau txheej txheem; siab- cov kav dej tshwj xeeb xws li 45 # muaj HB ntawm 197-241, thiab 16Mn / Q345 muaj HB ntawm 159-197, uas nyuaj dua thiab hnav-tiv taus.
2. Cov pa roj carbon steel seamless yeeb nkab puas tuaj yeem siv rau hauv qhov chaw siab - qhov kub thiab txias?
Teb: Feem ntau, cov pa roj carbon steel seamless kav yuav siv tau nyob rau hauv ib puag ncig qis dua 350 degree. Thaum qhov kub siab tshaj 350 degree, lawv lub zog yuav txo qis, thiab siab - cov ntaub ntawv tshwj xeeb (xws li 20MnG) nrog kev ua haujlwm kub zoo dua tau pom zoo.
3. Lub siab - specification carbon steel seamless kav yuav tiv taus kub?
Teb: Yog. High-cov ntaub ntawv tshwj xeeb xws li 16Mn / Q345 muaj qhov tsis zoo- qhov kub thiab txias, thiab tuaj yeem siv rau hauv ib puag ncig qis li -40℃(tom qab kev kho cua sov tsim nyog), thaum cov kav dej carbon steel feem ntau ua rau tawg ntawm qhov kub qis dua -20℃.
4. Dab tsi yog qhov corrosion kuj ntawm carbon steel seamless kav?
Teb: Ob qho tib si thiab siab - specification carbon steel seamless kav dej tsis zoo corrosion kuj thiab yooj yim rau xeb nyob rau hauv cov huab cua ntub los yog corrosive media. Lawv feem ntau xav tau kev tiv thaiv- kev kho corrosion (xws li galvanizing, painting, anti-corrosion txheej) kom ntev lawv lub neej kev pab cuam.
5. Puas muaj qhov sib txawv ntawm kev tiv thaiv corrosion ntawm ntau thiab siab - specification carbon steel seamless kav?
Teb: Qhov kev tiv thaiv corrosion yog qhov zoo ib yam, vim tias ob qho tib si yog tsim los ntawm carbon thiab hlau. Qhov sib txawv yog nyob rau hauv lub zog thiab toughness; siab- cov kav dej tshwj xeeb tsis muaj kev tiv thaiv corrosion zoo dua tshwj tsis yog tias lawv tau kho tshwj xeeb (xws li ntxiv corrosion- cov khoom tiv thaiv corrosion).
