Daim ntawv thov ntawm seamless steel yeeb nkab: dav dav-lub hom phiaj seamless steel yeeb nkab yog dov los ntawm cov pa roj carbon zoo tib yam steel, low-alloy structural steel lossis alloy structural steel.
Raws li kev siv sib txawv, nws tau muab faib ua peb pawg: muab raws li tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv kho tshuab; muab raws li txhua yam khoom.
Muab los ntawm kev kuaj hydrostatic. Cov kav hlau xa khoom raws li pawg a thiab b, yog tias lawv siv los tiv thaiv cov kua siab, yuav tsum raug kuaj xyuas hydrostatic. Lub hom phiaj tshwj xeeb seamless kav suav nrog seamless kav rau boilers, seamless kav rau tshuaj fais fab, seamless kav rau geological siv thiab seamless kav rau roj av.
Lub seamless steel yeeb nkab yuav tsum tau boiled nyob rau hauv boiling dej rau 30 vib nas this ua ntej kev kho mob txias, uas muaj peev xwm tshem tawm txog 15 feem pua ntawm cov kev ntxhov siab sab hauv thiab ruaj khov austenite.
Tom qab ntawd, kev kho mob khaub thuas tuaj yeem ua tau raws li cov lus pom zoo. Tau kawg, qhov kev tawm tswv yim thib ob yog xaiv kev kho mob tsis tu ncua ntawm rho tawm 60 degrees, thiab tom qab ntawd ua kom txias txias ntawm qhov rho tawm 120 degrees.
Qhov kev kho kub qis dua, qhov ceev ntawm cov austenite yuav hloov mus rau hauv martensite, tab sis tsis tag.
Tom qab kev sim, nws tuaj yeem pom tias yuav muaj li ntawm 2 feem pua ntawm austenite.
Nyob rau lub sijhawm no, nws yog ib qho tsim nyog yuav tsum khaws cov austenite kom ua tiav cov nyhuv buffering.
