Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Kusvikira pakupera kwezana remakore rechi19, nzira bedzi yokuroverera yaiva yokuroverera nesimbi, iyo vapfuri vakanga vashandisa kwezviuru zvemakore kubatanidza simbi nesimbi nokupisa nokurova. Arc welding uye oxy-fuel welding ndidzo dzaiva dzimwe nzira dzokutanga dzokuvaka mukupera kwezana remakore, uye kurwisa kwemagetsi kwakatevera nokukurumidza pashure pacho. Unyanzvi hwokuwelda hwakafambira mberi nokukurumidza mukuvamba kwezana ramakore rechi 20 sezvo hondo dzenyika dzakatungamirira kudikanwa kwenzira dzokujoina dzakavimbika uye dzisingadhuri. Mushure mehondo, matekinoroji mazhinji emazuva ano ekuwelding akagadzirwa, kusanganisira nzira dzemaoko senge yakadzivirirwa simbi arc welding, ikozvino imwe yenzira dzakakurumbira dzekuwelding, pamwe ne semi-otomatiki uye otomatiki maitiro akadai segasi simbi arc welding, yakanyudzwa arc welding, flux-cored arc welding uye electroslag welding. Zviitiko zvakapfuurira nekugadzirwa kwelaser beam welding, electron beam welding, magnetic pulse welding, uye friction stir welding muhafu yekupedzisira yezana remakore. Nhasi, sayenzi inoramba ichifambira mberi. Maindasitiri anowanzoshandisa marobhoti pakutsvaira, uye vanotsvakurudza vari kuramba vachitsvaka nzira itsva dzokutsvaira nadzo uye vari kuwedzera kunzwisisa kunaka kwezvinhu zvinotsvaira.  Mubvunzo: Chii chiri kuedza kunzwisiswa nevatsvakurudzi zviri nani mumashandisirwo anoitwa zvidhinha nemarobhoti?
unhu weld