Welding e bolela ho tjheseletsa thepa tlas'a maemo a hlalosoang bakeng sa kaho ea setho ho ea ka litlhoko tsa moralo, le bokhoni ba ho finyella litlhoko tsa tšebeletso e reriloeng esale pele.Ka thepa ea ho tjheseletsa, welding, mofuta oa karolo le litlhoko tsa tšebeliso tse amang lintlha tse 'ne.

Welding e tlaase ea carbon steel
Ka lebaka la litaba tsa khabone ea tšepe e tlase ea khabone (mohlala: peipi ea tšepe ea khabone), manganese, likahare tsa silicon li tlase, ka hona, hangata ha li na ho tima lithane tse thata kapa lisele tse thata.Low carbon tšepe tjheseletsa manonyeletso polasetiki le tshusumetso toughness e ntle, tjheseletsa, ka kakaretso ntle preheating, ho laola mocheso le mocheso pakeng tsa le dikarolo, ho sebelisa post-weld mocheso kalafo u se ke ua ntlafatsa mokhatlo o hlophisitsoeng, tshebetso eohle ha ho hlokahale hore nka mehato e khethehileng tjheseletsa tshebetso, weldability.

Ho cheselletsa tšepe ea khabone e mahareng
Karolo ea boima ba carbon ea 0.25% ~ 0.60% bakeng sa tšepe ea carbon e mahareng.Ha karoloana e boima ea khabone le manganese e ka bang 0.25% e se holimo, e sebetsa hantle.Ka keketseho ea khabone, ho cheseha ho ile ha mpefala butle-butle.Haeba carbon content e ka bang 0.45%, ha e ntse e thehiloe holim'a ts'ebetso ea ho tjheseletsa ha tšepe e bonolo e sebelisoang ha e le sebakeng se amehileng sa mocheso e ka hlahisa brittle martensite, e bonolo ho petsoha, hore ho thehoe ho phatloha ho batang.Ha tjheseletsa, palo ea lintho tse bonahalang motheo e qhibiliha ka tjheseletsa, weld e le hore dikahare k'habone eketseha, ho kgothaletsa mogote cracking ka tjheseletsa, haholo-holo ha taolo e thata ea litšila tsa sebabole, ho ka etsahala hore ebe.Crack ena e utloa bohloko haholo ka har'a crater ha ho ajoa mocheso ho petsoha ha cheselle le makhopho a maqhubu a pota-potileng ho chesele.

Ho chesehela tšepe e phahameng ea carbon
Ha phahameng-khabone tšepe dikahare k'habone e moholo ho feta 0,60%, thatafatsa, tjheseletsa crack kutlo ka mor'a hore tšekamelo e kholoanyane 'me kahoo futsanehileng weldability, e ke ke ea sebelisoa ha ho etsoa mehaho welded.Ho hlokahala ho sebelisoa ho feta ho sebelisoa ha ho thatafala kapa abrasion ea likarolo le likaroloana, mosebetsi oa tjheseletsa o haholo-holo tokiso ea tjheseletsa.Ka lebaka la matla a phahameng a matla a carbon steel haholo-holo ka 675MPa kapa ho feta, kahoo mohlala o tloaelehileng oa electrode E7015, E6015, o ka khetha E5016, E5015 electrode structure ha litho li kopa ho hongata.Ho feta moo, re ka sebelisa li-electrode tsa tšepe tsa chrome-nickel austenitic bakeng sa welding.Ka lebaka la likarolo tse phahameng tsa tšepe ea carbon e le ho fumana boima bo phahameng le ho roala ho hanyetsa, thepa ka boeona e tlas'a phekolo ea mocheso, welding e lokela ho etelloa pele ke ho e anneal hore e be welded.E lokela ho etsoa pele ho tjheseletsa preheat, mocheso oa preheat hangata o ka holimo ho 250 ~ 350 ℃, ts'ebetso ea ho tjheseletsa ha ea lokela ho ba ka tlaase ho mocheso oa mocheso oa ho tšoara pakeng tsa mocheso oa preheating.Licheso ka mor'a ho cheselletsa li ne li hloka mocheso o pholileng o liehang 'me hang-hang li kene ka sebōping ka 650 ℃ bakeng sa phekolo ea mocheso oa khatello ea kelello.