Khopolo le karohano ea khase tšepe arc welding
The arc tjheseletsa mokhoa o sebelisang eleketrode ho qhibilihisoa, khase kantle e le arc medium, le ho sireletsa marotholi a tšepe, letamo tjheseletsa le tšepe e phahameng-mocheso sebakeng tjheseletsa bitsoa ho qhibiliha electrode khase shielded arc tjheseletsa.
Ho latela karohano ea terata ea welding, e ka aroloa ka tjheseletsa ea terata e tiileng le flux cored wire welding. The khase inert (Ar kapa He) shielded arc tjheseletsa mokgwa wa ho sebelisa solid core terata e bitsoa Melting Inert Gas Arc Welding (MIG Welding); mokhoa oa ho tjheseletsa arc o sirelelitsoeng ka khase e ruileng argon o sebelisa terata e tiileng o bitsoa Metal Inert Gas Arc Welding (MIG welding). MAG tjheseletsa (Metal Active Gas Arc Welding). CO2 khase e sirelelitsoeng welding e sebelisa terata e tiileng, e bitsoang CO2 welding. Ha o sebelisa terata e nang le flux-cored, arc welding e ka sebelisang CO2 kapa CO2 + Ar e tsoakiloeng ka khase e sireletsang e bitsoa flux-cored wire gas shielded welding. Hape hoa khoneha ho etsa sena ntle le ho eketsa khase e sireletsang. Mokhoa ona o bitsoa "self-shielded arc welding".
Thepa ea welding ea Xinfa e na le litšobotsi tsa boleng bo holimo le theko e tlase. Ho fumana lintlha, ka kopo etela:Baetsi ba Welding & Cutting Manufacturers - China Welding & Cutting Factory & Suppliers (xinfatools.com)
Phapang pakeng tsa welding e tloaelehileng ea MIG/MAG le CO2 welding
Litšobotsi tsa CO2 welding ke: theko e tlase le katleho e phahameng ea tlhahiso. Leha ho le joalo, e na le bofokoli ba palo e kholo ea spatter le sebopeho se fosahetseng, kahoo mekhoa e meng ea ho tjheseletsa e sebelisa tjheseletso e tloaelehileng ea MIG/MAG. Tlhōlisano e tloaelehileng ea MIG/MAG ke mokhoa oa ho cheselletsa li-arc o sirelelitsoeng ke khase ea inert kapa khase e ruileng ea argon, empa CO2 welding e na le thepa e matla ea oxidizing, e khethollang phapang le litšobotsi tsa tse peli. Ha ho bapisoa le CO2 welding, melemo ea mantlha ea MIG/MAG welding ke e latelang:
1) Palo ea ho phatloha e fokotsehile ka ho feta 50%. The welding arc tlas'a tšireletso ea argon kapa argon-rich gase e tsitsitse. Hase feela hore arc e tsitsitse nakong ea phetoho ea marotholi le phetoho ea jet, empa hape le boemong bo khutšoanyane ba phetoho ea nako e khutšoanyane ea MAG welding, arc e na le phello e nyenyane ea ho lahla marotholi, kahoo e netefatsa MIG / Palo ea spatter e bakoang ke Phetoho ea potoloho e khuts'oane ea MAG e fokotsehile ka ho feta 50%.
2) Sefate sa welding se entsoe ka mokhoa o ts'oanang ebile se setle. Kaha ho fetisoa ha marotholi a MIG / MAG a ts'oanelang a tšoana, a poteletse ebile a tsitsitse, weld e thehoa ka mokhoa o ts'oanang le o motle.
3) E ka cheselletsa litšepe tse ngata tse sebetsang le li-alloys tsa tsona. Thepa ea oxidizing ea sepakapaka ea arc e fokola haholo kapa ha e na oxidizing. MIG/MAG welding ha e khone feela ho tjheseletsa tšepe ea carbon le tšepe e phahameng ea alloy, empa hape le litšepe tse ngata tse sebetsang le lisebelisoa tsa tsona, tse kang: aluminium le li-alloys tsa aluminium, tšepe e sa hloekang le lisebelisoa tsa eona, Magnesium le li-alloys tsa magnesium, joalo-joalo.
4) Ho ntlafatsa haholo ts'ebetso ea welding, boleng ba welding le katleho ea tlhahiso.
Phapang pakeng tsa tjheseletsa ea pulse MIG/MAG le welding e tloaelehileng ea MIG/MAG
Mefuta e ka sehloohong ea phetisetso ea marotholi ea welding e tloaelehileng ea MIG/MAG ke phetisetso ea jete ka phetiso e phahameng ea hajoale le e khuts'oane ka nako e tlase. Ka hona, hona joale ho ntse ho e-na le bofokoli ba palo e kholo ea spatter le sebopeho se fokolang, haholo-holo litšepe tse ling tse sebetsang ha li khone ho chesetsoa tlas'a hona joale. Welding tse kang aluminium le alloys, tšepe e sa hloekang, joalo-joalo, ho ile ha hlaha welding ea pulsed MIG/MAG. Tšobotsi ea eona ea phetisetso ea marotholi ke hore sekhahla se seng le se seng sa hona joale se fetisa lerotholi le le leng. Ha e le hantle, ke phetiso ea marotholi. Ha ho bapisoa le welding e tloaelehileng ea MIG/MAG, likarolo tsa eona tsa mantlha ke tse latelang:
1) Mokhoa o motle ka ho fetisisa oa ho fetisa marotholi bakeng sa pulse MIG/MAG welding ke ho fetisetsa lerotholi le le leng ka sekhahla. Ka tsela ena, ka ho fetola maqhubu a pulse, palo ea marotholi a fetisitsoeng ka nako ea yuniti e ka fetoloa, e leng lebelo la ho qhibiliha ha terata ea welding.
2) Ka lebaka la phetisetso ea marotholi a phallo e le 'ngoe le lerotholi le le leng, bophara ba lerotholi bo batla bo lekana le bophara ba terata ea welding, kahoo mocheso oa arc oa lerotholi o tlase, ke hore, mocheso oa lerotholi o tlase. (ha e bapisoa le ho fetisoa ha jet le ho fetisa marotholi a maholo). Ka hona, tekanyo ea ho qhibiliha ea terata ea welding ea eketseha, e bolelang hore ts'ebetso ea ho qhibiliha ha terata ea welding e ntlafatsoa.
3) Kaha mocheso oa marotholi o tlase, ho na le mosi o fokolang oa ho cheselletsa. Sena ka lehlakoreng le leng se fokotsa tahlehelo e tukang ea likarolo tsa alloy mme ka lehlakoreng le leng se ntlafatsa tikoloho ea kaho.
Ha ho bapisoa le welding e tloaelehileng ea MIG/MAG, melemo ea eona ea mantlha ke e latelang:
1) Spatter ea welding e nyane kapa ha e na spatter.
2) The arc e na le directivity e ntle 'me e loketse bakeng sa welding libakeng tsohle.
3) Weld e entsoe hantle, bophara ba ho qhibiliha bo boholo, litšobotsi tse kang menoana ea ho kenella li fokotsehile, 'me bophahamo bo setseng bo nyenyane.
4) Hona joale e nyenyane e ka cheselletsa litšepe tse sebetsang hantle (tse kang aluminium le li-alloys tsa eona, joalo-joalo).
E atolositse mefuta ea hajoale ea phetisetso ea jet welding ea MIG/MAG. Nakong ea pulse welding, hona joale welding e ka finyella ho fetisoa ha marotholi a tsitsitseng ho tloha haufi le motlakase o boima oa jet ho ea ho mefuta e mengata ea hona joale ea mashome a li-amps.
Ho tsoa ho tse ka holimo, re ka tseba litšobotsi le melemo ea pulse MIG / MAG, empa ha ho letho le ka phethahalang. Ha ho bapisoa le MIG/MAG e tloaelehileng, mefokolo ea eona e tjena:
1) Ts'ebetso ea tlhahiso ea welding hangata e utloahala e le tlase hanyane.
2) Litlhoko tsa boleng ba li-welders li batla li phahame.
3) Hona joale, theko ea thepa ea ho tjheseletsa e batla e phahame.
Liqeto tsa mantlha tsa ts'ebetso ea khetho ea pulse MIG/MAG welding
Ka lebaka la liphetho tsa papiso e ka holimo, le hoja ho cheseletsa ha pulse MIG/MAG ho na le melemo e mengata e ke keng ea finyelloa le ho bapisoa le mekhoa e meng ea ho cheselletsa, e boetse e na le mathata a theko e phahameng ea thepa, katleho e fokolang ea tlhahiso, le bothata ba hore li-welders li tsebe hantle. Ka hona, khetho ea pulse MIG/MAG welding e khethoa haholo ke litlhoko tsa ts'ebetso ea welding. Ho latela maemo a hajoale a ts'ebetso ea tjheseletsa ea lapeng, welding e latelang e tlameha ho sebelisa pulse MIG/MAG welding.
1) Tšepe ea carbon. Liketsahalo tse nang le litlhoko tse phahameng tsa boleng le chebahalo ea weld li haholo indastering ea likepe tsa khatello, joalo ka liboilers, li-exchanger tsa mocheso oa lik'hemik'hale, li-air-conditioning tse futhumatsang mocheso, le likhase tsa turbine indastering ea motlakase oa metsi.
2) Tšepe e sa hloekang. Sebelisa maqhubu a manyane (ka tlase ho 200A a bitsoa maqhubu a manyane mona, a tšoanang ka tlase) le liketsahalo tse nang le litlhoko tse phahameng ka boleng ba weld le ponahalo, joalo ka li-locomotives le likepe tsa khatello indastering ea lik'hemik'hale.
3) Aluminium le lisebelisoa tsa eona. Sebelisa hona joale e nyenyane (ka tlase ho 200A e bitsoa hona joale e nyenyane mona, e tšoanang ka tlase) le liketsahalo tse nang le litlhoko tse phahameng ka boleng ba weld le ponahalo, joalo ka literene tse lebelo le phahameng, li-switches tse matla haholo, karohano ea moea le liindasteri tse ling. Haholo-holo literene tse lebelo, ho kenyeletsoa CSR Group Sifang Rolling Stock Co., Ltd., Tangshan Rolling Stock Factory, Changchun Railway Vehicles, joalo-joalo, hammoho le bahlahisi ba banyenyane ba sebetsang ka ntle bakeng sa bona. Ho latela mehloli ea indasteri, ka 2015 litoropo tsohle tsa liprofinse le litoropo tse nang le baahi ba fetang 500,000 Chaena li tla ba le literene tsa likulo. Sena se bonts'a tlhokahalo e kholo ea literene tsa likulo, hammoho le tlhoko ea mosebetsi oa ho cheselletsa le lisebelisoa tsa ho cheselletsa.
4) Koporo le lisebelisoa tsa eona. Ho latela kutloisiso ea hajoale, koporo le lialloys tsa eona ha e le hantle li sebelisa pulse MIG/MAG welding (ka har'a sebaka sa ho qhibiliha ha arc arc welding).
Nako ea poso: Oct-23-2023
