Umgomo we-argon arc welding
I-Argon arc welding iyindlela yokushisela esebenzisa i-inert gas argon njengegesi evikelayo.
Izici ze-argon arc welding
1. Izinga le-weld liphezulu. Njengoba i-argon igesi ye-inert futhi ayiphenduli ngamakhemikhali ngensimbi, izakhi ze-alloy ngeke zishiswe, futhi i-argon ayincibiliki ngensimbi. Inqubo yokushisela iwukuncibilika kanye nokucwebezela kwensimbi. Ngakho-ke, umphumela wokuvikela ungcono, futhi i-weld ehlanzekile nekhwalithi ephezulu ingatholakala.
2. Ukucindezeleka kwe-welding deformation kuncane. Ngenxa yokuthi i-arc icindezelekile futhi ipholiswe ukugeleza kwegesi ye-argon, ukushisa kwe-arc kugxilile, futhi izinga lokushisa le-argon arc liphezulu kakhulu, ngakho-ke indawo ethintekile yokushisa incane, ngakho-ke ukucindezeleka nokuguqulwa ngesikhathi sokushisela kuncane, ikakhulukazi amafilimu amancane. Ukushisela izingxenye kanye nokushisela phansi kwamapayipi.
3. Inobubanzi obubanzi bokushisela futhi ingashisela cishe zonke izinto zensimbi, ezifanele ikakhulukazi izinsimbi zokushisela nama-alloys anezingxenye zamakhemikhali ezisebenzayo.
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Ukuhlukaniswa kwe-argon arc welding
1. Ngokwezinto ezihlukahlukene ze-electrode, i-argon arc welding ingahlukaniswa ibe yi-tungsten arc welding (i-electrode engancibiliki) kanye ne-melting electrode argon arc welding.
2. Ngokwendlela yokusebenza kwayo, ingahlukaniswa ibe yi-manual, i-semi-automatic kanye ne-automatic argon welding.
3. Ngokusho komthombo wamandla, ingahlukaniswa ibe yi-DC argon arc welding, i-AC argon arc welding kanye ne-pulse argon arc welding.
Ukulungiselela ngaphambi kokushisela
1. Funda ikhadi lenqubo yokushisela ukuze uqonde izinto ze-welding workpiece, imishini edingekayo, amathuluzi kanye nemingcele yenqubo ehlobene, kuhlanganise nokukhetha umshini wokushisela olungile (njenge-welding aluminium alloy, udinga ukusebenzisa umshini wokushisela we-AC), futhi ukukhethwa okulungile kwama-electrode e-tungsten nokugeleza kwegesi.
▶Okokuqala, sidinga ukwazi amapharamitha we-welding wamanje kanye neminye inqubo evela ekhadini lenqubo yokushisela. Bese ukhetha i-electrode ye-tungsten (ngokuvamile, ububanzi obungu-2.4mm busetshenziswa kakhulu, futhi ububanzi bamanje bokuguquguquka bungu-150~250A, ngaphandle kwe-aluminium).
▶ Usayizi we-nozzle kufanele ukhethwe ngokusekelwe kububanzi be-electrode ye-tungsten. 2.5 ~ 3.5 izikhathi zobubanzi be-electrode ye-tungsten ububanzi obungaphakathi bombhobho.
▶Ekugcineni, khetha izinga lokugeleza kwegesi elisekelwe kububanzi bangaphakathi bombhobho. Izikhathi ezingu-0.8-1.2 ububanzi obungaphakathi bombhobho yizinga lokugeleza kwegesi. Ubude besandiso se-electrode ye-tungsten akumele budlule ububanzi bangaphakathi bombhobho, ngaphandle kwalokho ama-pores azokwenzeka kalula.
2. Hlola ukuthi umshini wokushisela, isistimu yokuphakela igesi, uhlelo lokuphakelwa kwamanzi, kanye nesisekelo somhlaba kusaqinile.
3. Hlola ukuthi i-workpiece ifanelekile yini:
▶Kungakhathaliseki ukuthi kunamafutha, ukugqwala nokunye ukungcola (i-weld engaphakathi kuka-20mm kufanele ihlanzeke futhi yome).
▶Ukuthi i-engeli ye-bevel, igebe, nomphetho ogqamile kufanelekile yini. Uma i-groove angle negebe kukhulu, umthamo wokushisela uzoba mkhulu futhi ukushisela kungase kwenzeke kalula. Uma i-angle ye-groove incane, igebe lincane, futhi umphetho ongenalutho unzima, kulula ukubangela ukuhlanganisa okungaphelele kanye nokushisela okungaphelele. Ngokuvamile, i-engeli ye-bevel ingu-30°~32°, igebe lingu-0~4mm, kanti unqenqema olubuthuntu ngu-0~1mm.
▶Unqenqema olungalungile alukwazi ukuba lukhulu kakhulu, ngokuvamile phakathi kuka-1mm.
▶ Ukuthi ubude nenombolo yamaphoyinti wokushisela ayahlangabezana yini nezidingo, kanye ne-tack welding ngokwayo akumele ibe namaphutha.
Indlela yokusebenzisa i-argon arc welding
I-Argon arc umsebenzi lapho izandla zombili zinyakaza ngesikhathi esisodwa. Kuyafana nokuthi isandla sobunxele sidweba indilinga futhi isandla sokudla sidweba isikwele empilweni yethu yansuku zonke. Ngakho-ke, kunconywa ukuthi labo abaqala ukufunda i-argon arc welding kufanele benze ukuqeqeshwa okufanayo, okuzosiza ukufunda i-argon arc welding. .
1. Ukuphakela ngocingo: kuhlukaniswe ngocingo lokugcwalisa lwangaphakathi nocingo lokugcwalisa lwangaphandle.
▶ Intambo yokugcwalisa yangaphandle ingasetshenziselwa ukubeka phansi nokugcwalisa. Isebenzisa umsinga omkhulu. Ikhanda locingo lokushisela lingaphambili kwe-groove. Bamba intambo yokushisela ngesandla sakho sobunxele futhi uqhubeke uyifake echibini elincibilikisiwe lokushisela. Igebe le-groove lidinga igebe elincane noma elingekho.
Inzuzo yayo ukuthi yamanje inkulu futhi igebe lincane, ngakho-ke ukusebenza kahle kokukhiqiza kuphezulu futhi amakhono okusebenza kulula ukuwaqonda. Ububi bayo ukuthi uma isetshenziselwa ukuqalisa, u-opharetha akakwazi ukubona ukuncibilika konqenqema olubuthuntu kanye nokuphakama okweqile ohlangothini olungemuva, ngakho kulula ukukhiqiza ukwakheka okuhlanekezela okungahlanganisiwe nokungathandeki.
▶ Intambo yokugcwalisa ingasetshenziswa kuphela ekushiseleni okungaphansi. Sebenzisa isithupha sangakwesokunxele, umunwe wenkomba noma umunwe ophakathi ukuze uqondise ukunyakaza kokuphakela ucingo. Umunwe omncane kanye nomunwe wendandatho ubambe ucingo ukuze ulawule isiqondiso. Intambo iseduze konqenqema olubuthuntu ngaphakathi komsele, kanye nonqenqema olubuthuntu. Ukuncibilika nokushisela, igebe le-groove liyadingeka ukuthi libe likhulu kunobubanzi bocingo lokushisela. Uma kuyipuleti, intambo yokushisela ingagotshwa ibe yi-arc.
Inzuzo ukuthi intambo yokushisela ingakolunye uhlangothi lwe-groove, ngakho-ke ungabona ngokucacile ukuncibilika konqenqema olubuthuntu kanye nentambo yokushisela, futhi ungabona nokuqiniswa ohlangothini olungemuva ngombono wakho we-peripheral, i-weld ihlanganiswe kahle, futhi ukuqiniswa nokuntuleka kokuhlanganiswa ohlangothini olungemuva kungatholakala. Ukulawula okuhle kakhulu. Okubi ukuthi ukusebenza kunzima futhi kudinga ukuthi umshiseli abe namakhono asezingeni eliphezulu okusebenza. Ngenxa yokuthi igebe likhulu, ivolumu yokushisela iyanda ngokufanele. Igebe likhulu, ngakho-ke lamanje liphansi, futhi ukusebenza kahle komsebenzi kuhamba kancane kunaleyo yocingo lokugcwalisa lwangaphandle.
2. Isibambo sokushisela sihlukaniswe sibe isibambo esinyakazayo kanye ne-mop.
▶ Isibambo esinyakazisayo siwukucindezela umbhobho wokushisela kancane kancane kumthungo wokushisela, bese unyakazisa ingalo kakhulu ukuze ushise. Inzuzo yayo ukuthi i-nozzle ye-welding icindezelwe ku-weld seam futhi isibambo se-welding sizinzile kakhulu ngesikhathi sokusebenza, ngakho-ke i-weld seam ivikelwe kahle, ikhwalithi yinhle, ukubukeka kuhle kakhulu, futhi izinga lokufaneleka komkhiqizo liphezulu. Ikakhulukazi, i-overhead welding ilula kakhulu futhi ingasetshenziswa uma i-welding insimbi engagqwali. Thola umbala obukeka kahle kakhulu. Ububi ukuthi kunzima ukufunda. Ngenxa yokuthi ingalo inyakaza kakhulu, akunakwenzeka ukushisela izithiyo.
▶I-mop isho ukuthi ithiphu yokushisela incike kancane noma inganciki kumthungo wokushisela. Umunwe omncane noma umunwe wendandatho wesandla sokudla nawo uncike noma unganciki kucezu lokusebenza. Ingalo inyakaza kancane bese ihudula isibambo sokushisela ukuze sishisele. Izinzuzo zayo ukuthi kulula ukuyifunda futhi inokuvumelana nezimo okuhle. Ububi bayo ukuthi ukwakheka nekhwalithi akukuhle njengesibambo sokushwiba. Ikakhulukazi i-overhead welding ayinaso isibambo sokujikijela ukuze kube lula ukushisela. Kunzima ukuthola umbala nokuma okuhle uma ushisela insimbi engagqwali.
3. Ukushisa kwe-arc
I-arc starter (i-high-frequency oscillator noma i-high-frequency pulse generator) ngokuvamile isetshenziselwa ukuqalisa i-arc. I-electrode ye-tungsten kanye ne-weldment ayixhumani ukuze kuthungele i-arc. Uma ingekho i-arc starter, i-contact arc iqala isetshenziswa (ikakhulukazi esetshenziselwa ukufakwa kwendawo yokwakha, ikakhulukazi ukufakwa kokuphakama okuphezulu), ithusi noma i-graphite ingafakwa emseleni we-weldment ukuvutha i-arc, kodwa le ndlela inzima kakhulu. futhi akuvamile ukusetshenziswa. Ngokuvamile, intambo yokushisela isetshenziselwa ukudweba kancane intambo yokushisela ukuze ifinyeze ngokuqondile i-weldment kanye ne-electrode ye-tungsten futhi inqamule ngokushesha ukuze ithungele i-arc.
4.Ukushisela
Ngemuva kokuthi i-arc ivutha, i-weldment kufanele ishiswe imizuzwana emi-3 kuya kwemi-5 ekuqaleni kokushisela. Ukondla ngocingo kuqala ngemva kokwakhiwa kwechibi elincibilikisiwe. Lapho i-welding, i-angle ye-welding wire gun kufanele ifanele futhi ucingo lwe-welding kufanele ludliwe ngokulinganayo. Isibhamu esishiselayo kufanele siye phambili ngokushelela futhi sijike kwesokunxele nakwesokudla, izinhlangothi ezimbili zihambe kancane futhi phakathi nendawo ngokushesha kancane. Qaphela kakhulu izinguquko echibini elincibilikisiwe. Lapho ichibi elincibilikisiwe liba likhulu, i-weld iba banzi noma i-concave, isivinini sokushisela kufanele sisheshiswe noma i-welding current kufanele ilungiswe ibuyele phansi. Lapho ukuhlangana kwechibi elincibilikisiwe kungalungile futhi ukuphakelwa kocingo kuzwakala kunganyakazi, ijubane lokushisela kufanele lincishiswe noma i-welding current kufanele inyuswe. Uma i-welding engezansi, ukunakwa kufanele kugxile emaphethelweni angenalutho ezinhlangothini zombili ze-groove nasemakhoneni amehlo. Ngombono wakho we-peripheral ngakolunye uhlangothi lomthungo, naka izinguquko kwezinye izindawo eziphakeme.
5. ukuvala i-arc
Uma i-arc ivaliwe ngokuqondile, kulula ukukhiqiza izimbobo zokuncipha. Uma isibhamu sokushisela sine-arc starter, i-arc kufanele ivalwe ngezikhathi ezithile noma ilungiswe ku-arc current efanelekile futhi i-arc kufanele ivalwe kancane. Uma umshini wokushisela ungenayo i-arc starter, i-arc kufanele iholwe kancane kancane emseleni. Ungakhiqizi izimbobo zokuncipha ohlangothini olulodwa. Uma kwenzeka izimbobo zokushwabana, kufanele zipholishwe zihlanzeke ngaphambi kokushiselwa.
Uma ukuvala kwe-arc kuhlangene, ilunga kufanele ligaywe libe yi-bevel kuqala. Ngemuva kokuthi ilunga selincibilike ngokuphelele, shisela phambili ngo-10~20mm bese uvala kancane i-arc ukuze ugweme ukushwabana kwemigodi. Ekukhiqizeni, kuvame ukubonakala ukuthi amalunga awagcotshwanga abe yi-bevels, kodwa isikhathi se-welding samalunga sinwetshwa ngokuqondile. Lona umkhuba omubi kakhulu. Ngale ndlela, amalunga ajwayele ukuhlangana, amalunga angahlanganisiwe kanye nezindawo ezingemuva ezihlangene, ezithinta ukubonakala kokubunjwa. Isibonelo, uma i-alloy ephezulu Impahla nayo ijwayele ukuqhekeka.
Ngemva kokushisela, hlola ukuthi ukubukeka kuyagculisa. Vala amandla negesi uma uhamba.
Isikhathi sokuthumela: Dec-19-2023
