Fusion Welding: The Main Force of Industrial Welding
Fusion Welding: The Main Force of Industrial Welding
Fusion welding ke mokhahlelo o sebelisoang haholo oa ho cheselletsa. Ka melemo ea ho khona ho kopanya lipoleiti tse teteaneng le ho ba le matla a phahameng a weld, e fetohile theknoloji ea mantlha masimong a kang meaho ea tšepe, likepe tsa khatello le kaho ea likepe. E kenyelletsa mekhoa e fapaneng e kang shielded metal arc welding (SMAW), gas metal arc welding (GMAW), le laser welding, tseo tse peli tsa pele e leng "mefuta e sebelisoang hangata" tlhahisong le tlhokomelong ea indasteri.
(I) Shielded Metal Arc Welding (SMAW): The Flexible and Convenient "All-Rounder"
Sielded metal arc welding (SMAW) ke mokhoa oa mantlha le o tenyetsehang oa welding. E qhibilihisa tšepe ka mocheso oa arc pakeng tsa electrode le workpiece. Ka lisebelisoa tse bonolo le menyako e tlaase ea ts'ebetso, e loketse ka ho khetheha bakeng sa tlhokomelo ea setša, tlhahiso e le 'ngoe / e nyenyane-batch, le welding ea mehaho e rarahaneng.
1. Molao-motheo oa Motheo le Sebopeho sa Thepa
Molao-motheo: Ho roala ka lehlakoreng le ka pele la electrode ho chesa ho etsa khase e sireletsang, moea o arolang. Mocheso oa arc o qhibilihisa motsoako oa electrode le workpiece ho etsa letamo le qhibilihisitsoeng. Ka mor'a ho pholile, masala a ho roala a etsa slag ho sireletsa tšepe ea weld.
Lisebelisoa: AC kapa DC arc welding machine, welding electrode holder, welding electrode (tse khethiloeng ho ea ka tšepe ea motheo; mohlala, li-electrode tsa E4303 li atisa ho sebelisoa bakeng sa tšepe e tlaase ea carbon), le lisebelisoa tsa tšireletso (helmete ea ho tjheseletsa, li-gloves tse insulated, liaparo tsa ho tjheseletsa).
2. Lintlha tsa Bohlokoa tsa Ts'ebetso
Tokisetso ea Pele ho Welding: Li-electrode li hloka ho omisoa ho latela litlhoko (150-200 ° C bakeng sa li-electrode tse nang le asiti, 350-400 ° C bakeng sa li-electrode tsa motheo). Tlosa oli, mafome le sekala sa oxide sebakeng sa mosebetsi ho qoba porosity; lokisa hona joale ho ea ka botenya ba poleiti, ka kakaretso ho latela molao-motheo oa "10-15A ka limilimithara tsa botenya ba poleiti" (mohlala, 60-90A bakeng sa lipoleiti tsa tšepe tse 6mm).
Ts'ebetso ea Welding: Hotetsa arc ho sebelisa "mokhoa oa ho phunya" (o ts'oanang le ho otla papali) kapa "mokhoa oa ho ama" (tšusumetso e tobileng ea eleketrode holim'a sesebelisoa sa mosebetsi). Laola bolelele ba arc ho 10-15mm (hoo e ka bang 0.8-1.2 makhetlo a bophara ba electrode); boloka angle ea 60-80 ° pakeng tsa electrode le workpiece, 'me u tsamaee ka lebelo le ts'oanang le tataiso ea ho tjheseletsa. Laola boholo ba letamo le entsoeng ka ho qhibilihisoa ho makhetlo a 1.5-2 bophara ba electrode ho qoba matlafatso ea weld e bakoang ke letamo le leholo haholo le qhibilihisitsoeng kapa khaello ea motsoako ka lebaka la letamo le lenyenyane le qhibilihileng.
Kalafo ea Post-Welding: Ka mor'a ho pholile, sebelisa hamore ea slag ho hloekisa slag. Lekola sebaka sa weld bakeng sa liphoso tse kang porosity, undercut, le slag kenyelello. Etsa tlhahlobo e sa senyeheng ha ho hlokahala.
3. Likopo tse Tloaelehileng le Meeli
Maemo a Kopo: Meaho ea tšepe ea kaho, tlhokomelo ea liphaephe, tjheseletsa ea karolo ea mochini, kaho ea borokho, joalo-joalo, e loketseng haholo maemo a kantle kapa a se nang phepelo ea motlakase e tsitsitseng.
Meeli: Ts'ebetso e tlase ea welding (ts'ebetso ea letsoho), boleng ba weld bo angoa haholo ke litsebo tsa opereishene, 'me ha bo tšoanelehe bakeng sa lisebelisoa tse nang le oxidized habonolo tse kang li-alloys tsa aluminium le litšepe tse sa hloekang.
