Imbonakalo ye-Q235 kunye ne-Q345 ngokuqhelekileyo ayibonakali.Ukwahlukana kombala akunanto yakwenza nezinto zentsimbi, kodwa umahluko kwindlela yokupholisa emva kokuba intsimbi ikhutshwe.Indawo eqhelekileyo, epholile ngokwendalo ibomvu.Ukuba indlela yokucima isetyenziswe, umphezulu wenza i-dense oxide layer, eya kubonakala imnyama.

Uyilo lwamandla ngokubanzi kunye ne-Q345, kuba i-Q345 iphezulu kune-Q235 amandla ensimbi, iphondo lensimbi, kunephondo le-235 15% - 20%.Kulungile ukusebenzisa i-Q235 xa uyila ulawulo lozinzo.Kukho umahluko we-3% ukuya kwi-8% kwixabiso.

Ngokuphathelele ukuchongwa, kukho iithiyori ezininzi:

A:1.Kumzi-mveliso, ukuwelda kwesilingo kunokusetyenziselwa ukwahlula ezi zinto zimbini.Umzekelo, sebenzisa i-electrode ye-E43 ukuwelda intsimbi engqukuva encinci kwipleyiti nganye yentsimbi, kwaye emva koko usebenzise amandla okucheba ukwahlula ngokucacileyo izixhobo zeepleyiti zentsimbi ezimbini ngokwemeko ngexesha lokusilela.

2. Kumzi-mveliso, ivili lokugaya lingasetyenziselwa ukwahlula izinto ezimbini.Xa intsimbi ye-Q235 ikhazimliswe ngevili lokusila, iintlantsi ezibhabhayo ziphuma ngamasuntswana angqukuva anombala omnyama.Intlantsi ye-Q345 iphindwe kabini kwaye iqaqambile.

3, kukho kwakhona ngokomahluko wombala wokucheba umphezulu weentlobo ezimbini zentsimbi ezinokwahlulwa ngokuqikelelwa phakathi kweentlobo ezimbini zentsimbi.Ngokubanzi, izibuko lokusika le-Q345 limhlophe ngombala.

B:1.Ngokombala wepleyiti yensimbi, izinto ze-Q235 kunye ne-Q345 ziyakwazi ukwahlula: umbala we-Q235 unombala oluhlaza okwesibhakabhaka, kwaye umbala we-Q345 ubomvu (oku kuphela kwentsimbi efika nje entsimini, kwaye iyakwazi. ayibonakali emva kwexesha elide).

I-2, eyona nto ikwazi ukuhlukanisa izinto zovavanyo kuhlalutyo lweekhemikhali, i-Q235 kunye ne-Q345 i-carbon content ayifani, ngexesha elifanayo umxholo wekhemikhali awufani.(Le yindlela eqinisekileyo yokuyenza.)

I-3, i-Q235 kunye ne-Q345 ukuhlukana kwezinto eziphathekayo, kunye nemodi ye-welding: izinto ezimbini ezingaziwayo ze-steel plate butt, kunye nentonga ye-welding eqhelekileyo kwi-weld, ukuba i-crack side ye-plate yensimbi ibonakaliswe ukuba yi-Q345 impahla.(La ngamava asebenzayo)