Phapang lipakeng tsa TIG, MIG le MAG welding
1. TIG welding ka kakaretso ke toche ea tjheseletsa e tšoaroang ka letsoho le le leng 'me terata ea welding e tšoaroa ka lehlakoreng le leng, e loketseng bakeng sa ho tjheseletsa ka letsoho ha mesebetsi e nyenyane le ho lokisoa.
2. Bakeng sa MIG le MAG, terata ea welding e romelloa ho tloha leboneng la welding ka mochine o itekanetseng oa ho fepa terata, o loketseng ho otloloha ka mokhoa o itekanetseng, 'me ha e le hantle o ka boela oa sebelisoa ka letsoho.
3. Phapang pakeng tsa MIG le MAG ke haholo-holo ka khase e sireletsang. Thepa e tšoana, empa ea pele e sirelelitsoe ka kakaretso ke argon, e loketseng ho cheselletsa litšepe tse se nang ferrous; ea morao-rao ka kakaretso e tsoakane le khase ea carbon dioxide e sebetsang ka har'a argon, 'me e loketse ho cheselletsa tšepe e matla le tšepe e phahameng ea alloy.
4. TIG le MIG ke welding e sirelelitsoeng ka khase e inert, e tsejoang ka hore ke argon arc welding. Khase ea inert e ka ba argon kapa helium, empa argon e theko e tlaase, kahoo e atisa ho sebelisoa, kahoo khase ea inert arc welding hangata e bitsoa argon arc welding.
Papiso ea tjheseletsa ea MIG le TIG
Papiso ea MIG welding le TIG welding MIG welding (melting inert gas shielded welding) ka Senyesemane: tšepe inert-gas welding e sebelisa electrode e qhibilihang.
The arc tjheseletsa mokhoa o sebelisang khase e ekelitsoeng e le arc medium le ho sireletsa marotholi a tšepe, letamo tjheseletsa le tšepe e phahameng-thempereichara sebakeng tjheseletsa bitsoa khase tšepe shielded arc welding.
Mokhoa oa ho cheselletsa arc o sirelelitsoeng ka khase (Ar or He) o nang le terata e tiileng o bitsoa welding e sirelelitsoeng ka khase e qhibilihisitsoeng, kapa welding ea MIG ka bokhutšoanyane.
MIG tjheseletsa e tšoana le TIG tjheseletsa ntle le hore terata e sebelisoa ho e-na le eleketrode tungsten ka tocheng. Ka hona, terata ea welding e qhibilihisoa ke arc ebe e kenngoa sebakeng sa welding. Lirolara tse tsamaisoang ka motlakase li fepa terata ho tloha spool ho ea tocheng joalo ka ha ho hlokahala bakeng sa ho cheselletsa, 'me mohloli oa mocheso le oona ke DC arc.
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Empa polarity e fapane le e sebelisoang ho TIG welding. Khase e sireletsang e sebelisoang e boetse e fapane, 'me 1% ea oksijene e kenngoa ho argon ho ntlafatsa botsitso ba arc.
Joalo ka tjheseletso ea TIG, e ka cheseletsa hoo e ka bang litšepe tsohle, haholo-holo tse loketseng lisebelisoa tsa ho cheselletsa tse kang aluminium le lialloi tsa aluminium, lialloe tsa koporo le tsa koporo, le tšepe e sa hloekang. Hoo e ka bang ha ho na tahlehelo e tukang ea oxidation ts'ebetsong ea welding, ke tahlehelo e nyane feela ea mouoane, mme ts'ebetso ea metallurgic e batla e le bonolo.
TIG welding (Tungsten Inert Gas Welding), e tsejoang hape e le "non-melting inert gas tungsten shielded welding". Ebang ke tjheseletso ka letsoho kapa tjheseletso e iketsang ya 0.5-4.0mm tshepe e tenya e sa jeleng, TIG ke mokgwa o sebediswang ka ho fetisisa.
Mokhoa oa ho eketsa terata ea ho tlatsa ka TIG welding hangata e sebelisoa bakeng sa ho ts'ehetsa tjheseletsa ea likepe tsa khatello, hobane ho tiea ha moea oa TIG welding ho molemo mme ho ka fokotsa porosity ea seam ea weld nakong ea welding ea likepe tsa khatello.
Mohloli oa mocheso oa TIG welding ke DC arc, motlakase o sebetsang ke 10-95 volts, empa hona joale o ka fihla ho 600 amps.
Tsela e nepahetseng ea ho hokahanya mochine oa ho tjheseletsa ke ho hokahanya workpiece ho palo e ntle ea phepelo ea motlakase, le palo ea tungsten ka lebone la welding e le palo e mpe.
Khase ea inert, hangata argon, e fepeloa ka toche ho etsa thebe ho potoloha arc le holim'a letamo la weld.
Ho eketsa tlhahiso ea mocheso, hangata 5% hydrogen e kenngoa ho argon. Leha ho le joalo, ha ho chesetsoa tšepe e sa hloekang ea ferritic, hydrogen e ke ke ea eketsoa ka argon.
Tšebeliso ea khase e ka ba lilithara tse 3-8 ka motsotso.
Ts'ebetsong ea ho tjheseletsa, ntle le ho foka khase ea inert e tsoang ho toche ea welding, ho molemo ho letsa khase e sebelisetsoang ho sireletsa mokokotlo oa weld ho tloha tlas'a weld.
Haeba o lakatsa, sekoti sa weld se ka tlatsoa ka terata ea sebopeho se ts'oanang le thepa ea austenitic e cheselitsoeng. Mofuta oa 316 filler o sebelisoa hangata ha ho chesetsoa litšepe tse se nang tšepe tsa ferritic.
Ka lebaka la tšireletso ea khase ea argon, e ka arola phello e kotsi ea moea holim'a tšepe e qhibilihisitsoeng, kahoo TIG welding e sebelisoa haholo ho cheselletsa.
Habonolo oxidized non-ferrous metale tse kang aluminium, magnesium le metsoako ea tsona, tšepe e sa jeleng paate, li-alloys tse phahameng tsa mocheso, titanium le li-alloys tsa titanium, hammoho le litšepe tse sebetsang tse refractory (joalo ka molybdenum, niobium, zirconium, joalo-joalo), ha k'habone e tloaelehileng, joalo-joalo. tšepe, tšepe e tlase ea alloy, joalo-joalo, TIG welding ha e sebelisoe ka kakaretso ntle le liketsahalo tse hlokang boleng bo phahameng ba welding.
Nako ea poso: Aug-24-2023
