Welding ubhedu
Iindlela ze-welding copper (ebizwa ngokuba yi-industrial copper ecocekileyo) ibandakanya ukuwelda kwegesi, ukuwelda kwe-carbon arc manual, i-arc welding manual kunye ne-argon arc welding manual, kunye nezakhiwo ezinkulu ziyakwazi ukuwelda ngokuzenzekelayo.
I-1.Eyona nto isetyenziswa ngokuqhelekileyo i-welding yegesi yobhedu yi-joint ye-butt, kunye ne-overlap joint kunye ne-T edibeneyo kufuneka isetyenziswe njengento embalwa kunokwenzeka. Iintlobo ezimbini zeengcingo ze-welding zingasetyenziselwa ukutshisa igesi. Enye i-welding wire equkethe izinto ze-deoxygenation, ezifana neengcingo ze-201 kunye ne-202; enye intambo yobhedu ngokubanzi kunye nomtya wokusika wesiseko, kunye ne-agent yegesi 301 isetyenziswa njenge-flux. Idangatye elingathathi hlangothi kufuneka lisetyenziswe xa irhasi iwelding ubhedu.
2.I-copper copper rod copper 107 isetyenziselwa i-arc welding manual, kunye ne-welding core yobhedu (T2, T3). Imiphetho ye-welding kufuneka ihlambuluke ngaphambi kokuba idibanise. Xa ubukhulu be-weldment bungaphezulu kwe-4 mm, ukushisa kwangaphambili kufuneka kufudunyezwe ngaphambi kokuba kufakwe i-welding, kwaye ubushushu bokufudumala bujikeleze i-400 ~ 500 ℃. Xa i-welding nge-copper 107 intonga ye-welding, ukunikezelwa kwamandla kufuneka kuguqulwe yi-DC.
3.Ii-arcs ezimfutshane kufuneka zisetyenziswe ngexesha le-welding, kwaye intonga ye-welding akufanele iguquke ngokuthe tye. Intonga ye-welding yenza i-linear motion i-reciprocating, enokuphucula ukubunjwa kwe-weld. I-weld ende kufuneka idityaniswe ngokuthe ngcembe. Isantya se-welding kufuneka sikhawuleze kangangoko kunokwenzeka. Ngexesha le-welding ye-multi-layer, i-slag phakathi kwemigangatho kufuneka isuswe ngokupheleleyo. I-Welding kufuneka iqhutywe kwindawo enomoya kakuhle ukukhusela ityhefu yobhedu. Emva kwe-welding, sebenzisa isando esisicaba ukucofa i-weld ukuphelisa uxinzelelo kunye nokuphucula umgangatho we-weld.
4.Manual argon arc welding yobhedu. Xa i-argon ye-arc ye-manual ye-arc welding yobhedu, iingcingo ezisetyenzisiweyo ziyi-wire 201 (i-copper ekhethekileyo ye-welding wire) kunye ne-wire 202, kwaye isebenzisa ucingo lobhedu, njenge-T2.
Ngaphambi kwe-welding, ifilimu ye-oxide, ioli kunye nolunye ukungcola kwimida ye-welding ye-workpiece kunye nomphezulu wocingo kufuneka uhlambuluke ukuze ugweme iziphene ezifana ne-pores kunye ne-slag inclusions. Iindlela zokucoca ziquka ukucoca ngoomatshini kunye nokucoca iikhemikhali. Xa ubukhulu beplate edibeneyo ye-butt ingaphantsi kwe-3 mm, i-bevel ayivulwa; xa ubukhulu beplate bu-3 ukuya kwi-10 mm, i-bevel ene-V ivuliwe, kwaye i-angle ye-bevel yi-60 ukuya ku-70; xa ubukhulu beplate bungaphezulu kwe-10 mm, i-bevel efana ne-X ivuliwe, I-angle ye-bevel yi-60 ~ 70; ukunqanda imiphetho engadityaniswanga, imiphetho ebuthuntu iyashiywa ngokubanzi. Ngokutsho kobukhulu beplate kunye nobukhulu be-bevel, i-gap yendibano ye-butt joint ikhethwe phakathi koluhlu lwe-0.5 ukuya kwi-1.5 mm.
I-Manual copper arc welding idla ngokusetyenziswa kwi-DC positive connection, oko kukuthi, i-electrode ye-tungsten iqhagamshelwe kwi-electrode engeyiyo. Ukuze kupheliswe imingxuma yomoya kunye nokuqinisekisa ukudibanisa okuthembekileyo kunye nokungena kweengcambu ze-weld, kuyimfuneko ukunyusa isantya se-welding, ukunciphisa ukusetyenziswa kwe-argon, kunye nokutshisa i-weldment. Xa ubukhulu bepleyiti bungaphantsi kwe-3 mm, ubushushu bokufudumala yi-150 ~ 300 ℃; xa ubukhulu bepleyiti bungaphezu kwe-3 mm, ubushushu bokufudumala bungama-350 ~ 500℃. Ukushisa kwangaphambi kokushisa akufanele kube phezulu kakhulu, ngaphandle koko iipropathi ze-mechanical ze-welded joints ziya kuncitshiswa.
Kukho kwakhona i-copper carbon arc welding, kunye nee-electrodes ezisetyenziselwa i-carbon arc welding ziquka i-carbon essence electrode kunye ne-graphite electrode. I-wire welding esetyenziselwa i-copper carbon arc welding iyafana naxa i-gas iwelding. Izinto ezisisiseko zingasetyenziselwa ukusika imichilo, kunye ne-fluxes yobhedu efana ne-agent ye-gas 301 ingasetyenziswa.
Ukuwelda ngobhedu
I-1.Iindlela ze-welding yobhedu ziquka: i-gas welding, i-carbon arc welding, i-arc manual kunye ne-argon arc welding. 1. I-gesi ye-welding yobhedu Ngenxa yokuba ukushisa kwe-gas welding flame kuphantsi, i-zinc evaporation yobhedu ngexesha le-welding ingaphantsi xa usebenzisa i-welding yombane, ngoko ke i-gas welding yeyona ndlela isetyenziswa kakhulu kwi-welding yobhedu (enkosi ngokunika ingqalelo kwi-Dingding Automatic Welding).
Iingcingo ze-welding ezisetyenziselwa i-welding yegesi yobhedu zibandakanya: i-wire 221, i-wire 222 kunye ne-wire 224. Ezi ngcingo ze-welding ziqulethe izinto ezifana ne-silicon, i-tin, isinyithi, njl., ezinokuthintela kunye nokunciphisa ukukhupha kunye nokutshiswa kwe-zinc kwi-pool etyhidiweyo, kwaye ilungele ukuqinisekisa i-weld. Ukusebenza kunye nokuthintela imingxuma yomoya. Iifluxes ezidla ngokusetyenziswa kwirhasi yokuwelda ubhedu ziquka umgubo oqinileyo kunye nokuhamba kwegesi. I-gas flux iqukethe i-boric acid methyl fat kunye ne-methanol; ii-fluxes zinje nge-arhente yerhasi 301.
2.I-arc ye-arc ye-manual yobhedu Ukongeza kwi-227 yobhedu kunye ne-237 yobhedu, iintonga ze-welding zasekhaya zingasetyenziselwa ukuthunga ubhedu.
Xa i-arc yobhedu i-welding, i-DC power supply positive connection kufuneka isetyenziswe kwaye intonga ye-welding kufuneka idibaniswe kwi-electrode engafanelekanga. Umphezulu we-weldment kufuneka ucocwe ngononophelo ngaphambi kokuba udibanise. I-engile ye-bevel kufuneka ingabi ngaphantsi kwe-60 ~ 70o. Ukuze kuphuculwe ukubunjwa kwe-weld, iindawo ezidibeneyo kufuneka zifudunyezwe kwi-150 ~ 250 ℃. I-arc i-welding emfutshane kufuneka isetyenziswe ngexesha lokusebenza, ngaphandle kwe-horizontal okanye phambili kunye ne-backward swing, intshukumo yomgca kuphela, kunye nesantya se-welding kufuneka sibe phezulu. Iindawo ezidityanisiweyo zobhedu ezidibana nemithombo yeendaba ezonakalisayo ezifana namanzi olwandle kunye ne-ammonia kufuneka zifakwe emva kwe-welding ukuphelisa uxinzelelo lwe-welding.
3.Manual argon arc welding yobhedu. I-manual argon arc welding yobhedu ingasebenzisa iingcingo zobhedu eziqhelekileyo: i-wire 221, i-wire 222 kunye ne-wire 224, kunye nezixhobo ezinamacandelo afanayo kunye nesiseko sesiseko nazo zingasetyenziswa njengezinto zokuzalisa.
I-Welding inokwenziwa ngokungqalileyo ngoku okanye nge-AC. Xa usebenzisa i-AC welding, i-evaporation ye-zinc ilula kunokuba i-current ngqo ixhunyiwe. Ngokuqhelekileyo, ukushisa kwangaphambili akuyimfuneko phambi kwe-welding, kwaye ukufudumala kuphela xa ubukhulu beplate bukhulu. Isantya se-welding kufuneka sikhawuleze kangangoko kunokwenzeka. Emva kwe-welding, iindawo ezidibeneyo kufuneka zitshiswe kwi-300 ~ 400 ℃ ukwenzela ukucima ukuphelisa uxinzelelo lwe-welding ukuthintela iintanda kwiindawo ezidibeneyo ngexesha lokusetyenziswa.
4.I-Brass carbon arc welding Xa i-brass carbon arc welding, i-wire 221, i-wire 222, i-wire 224 kunye nezinye iingcingo ze-welding zikhethwa ngokuhambelana nokubunjwa kwezinto ezisisiseko. Unokusebenzisa iingcingo ezenziwe ekhaya zobhedu ukuwelda. I-agent yegesi ye-301 okanye efana nayo ingasetyenziswa njenge-flux kwi-welding. I-welding kufuneka iqhutywe i-arc emfutshane ukunciphisa ukukhuphuka kwe-zinc kunye nokutshisa umonakalo.
Ixesha lokuposa: Mar-10-2025