Ngaphansi kwezimo ezibandayo i-low-carbon steel welding, izinga lokupholisa lejoyinti elishiselwe, elenze ukuthambekela kokuqhekeka kwanda, ikakhulukazi ku-weld yokuqala Izakhiwo ezinzima ezithintekayo ekuqhekekeni, kuyadingeka ukuthatha izinyathelo zenqubo elandelayo:

I-1) Akwenzeki ngaphansi kwezimo zokugoba okuphansi kwezinga lokushisa, ukulungiswa kanye nokushisela komhlangano.

2) Ukushisa kuqala, inqubo yokushisela ipayipi lensimbi engenamthungo engu-16Mn egcinwe ngokuqinile izinga lokushisa le-interlayer akufanele lehlele ngaphansi kwezinga lokushisa langaphambi kokushisa.

3) I-Hydrogen noma i-ultra-low hydrogen welding.

I-4) I-seam yonke ye-welding eqhubekayo kufanele igcwaliswe ukugwema ukuphazamiseka.

5) Lapho ukubeka Welding ukuze kwandiswe wamanje Welding, isivinini Welding ijubane, ngenxa yokwanda tack welds cross-Sectional indawo nobude, preheated uma kunesidingo.

6) Akwenziwa endaweni eyisisekelo ye-arc groove ngaphandle kwesidingo sokugcwalisa i-crater uma ishabalala.