Yuav ua li cas paub qhov txawv ntawm ASTM A53 Qib A thiab Qib B?
ASTM A53Qib A thiab Qib B steel kav tuaj yeem paub qhov txawv ntawm lawv cov tshuaj muaj pes tsawg leeg thiab cov khoom siv tshuab; hais txog cov khoom siv kho tshuab, Qib B steel kav muaj zog dua.
Dab tsi yog txoj kev tiv thaiv kev tiv thaiv corrosion rau ASTM A53 LSAW ncaj seam welded steel kav?
Kev tiv thaiv -txoj kev corrosion muaj feem xyuam rauASTM A53 LSAW kavsuav nrog cov txheej tiv thaiv xws li 3PE (peb- txheej polyethylene), FBE (ib zaug lossis ntau- txheej), thiab kub-dip galvanizing lossis epoxy primer + topcoat.
Dab tsi yuav tsum tau ceev faj thaum thauj ASTM A53 LSAW ncaj seam welded kav?
Kev ceev faj rau kev thauj mus losASTM A53 LSAW ncaj seam welded kavsuav nrog: ntim kom zoo los tiv thaiv corrosion thiab cuam tshuam; kev ruaj ntseg cov kav dej kom tsis txhob dov lossis deformation.
Dab tsi yog ASTM A53 LSAW ncaj seam welded kav kav?
Lub siab ntawdASTM A53 LSAW ncaj seam welded kavtuaj yeem tiv taus nyob ntawm lawv qib, qhov loj me, thiab daim ntawv thov tshwj xeeb. Txawm hais tias tus qauv tsis qhia txog qhov ntsuas siab tshaj plaws, nws yuav tsum tau ua kom cov yeeb nkab mus rau qhov ntsuas hydrostatic tsawg kawg 2.5 MPa.
Dab tsi yog qhov kev ua haujlwm kub rau ASTM A53 LSAW ncaj seam welded yeeb nkab?
ASTM A53 LSAW ncaj seam welded yeeb nkabfeem ntau haum rau nruab nrab- qhov kub thiab txias, nruab nrab- cov ntawv thov siab, nrog rau qhov siab tshaj plaws ua haujlwm kub ntawm kwv yees li 1200℃F (650 degree), tab sis cov qib tshwj xeeb thiab cov ntawv thov yuav txawv.
