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Pokello ea boiphihlelo bo sebetsang bo tsoang ho litsebi tsa welding ea argon arc

Molao-motheo oa argon arc welding

Argon arc welding ke mokhoa oa ho cheselletsa o sebelisang argon ea khase ea inert e le khase e sireletsang.

Litšobotsi tsa argon arc welding

1. Boleng ba weld bo phahame. Kaha argon ke khase ea inert 'me ha e sebetse ka lik'hemik'hale ka tšepe, lisebelisoa tsa alloy li ke ke tsa chesoa,' me argon ha e qhibilihe ka tšepe. Ts'ebetso ea ho tjheseletsa ha e le hantle ke ho qhibiliha le ho phatsima ha tšepe. Ka hona, phello ea tšireletso e molemo, 'me ho ka fumanoa weld e hloekileng le ea boleng bo phahameng.

2. The welding deformation khatello ea kelello e nyenyane. Hobane arc e hatelloa ebile e pholile ke phallo ea khase ea argon, mocheso oa arc o tsepamisitsoe, 'me mocheso oa argon arc o phahame haholo, kahoo sebaka se amehileng ke mocheso se nyane, kahoo khatello ea maikutlo le deformation nakong ea welding li nyane, haholo-holo bakeng sa lifilimi tse tšesaane. Welding ea likarolo le tjheseletsa tlase ea liphaephe.

3. E na le mefuta e mengata ea ho tjheseletsa 'me e ka kopanya hoo e batlang e le lisebelisoa tsohle tsa tšepe, haholo-holo tse loketseng litšepe le li-alloys tse nang le likarolo tse sebetsang tsa lik'hemik'hale.

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)

Classification ea argon arc welding

1. Ho ea ka lisebelisoa tse fapaneng tsa elektrode, argon arc welding e ka aroloa ka tungsten arc welding (non-melting electrode) le melting electrode argon arc welding.

2. Ho ea ka mokhoa oa eona oa ts'ebetso, e ka aroloa ka mokhoa oa matsoho, oa semi-automatic le othomathiki oa argon arc welding.

3. Ho ea ka mohloli oa matla, e ka aroloa ka DC argon arc welding, AC argon arc welding le pulse argon arc welding.

Ho itokisa pele ho tjheseletsa

1. Bala karete ea ts'ebetso ea tjheseletsa ho utloisisa lintho tse bonahalang tsa workpiece ea ho tjheseletsa, lisebelisoa tse hlokahalang, lisebelisoa le mekhoa e amanang le ts'ebetso e amanang le eona, ho kenyelletsa le ho khetha mochine o nepahetseng oa ho tjheseletsa (joalo ka ho tjheseletsa aluminium alloy, o hloka ho sebelisa mochine oa welding oa AC), le khetho e nepahetseng ea li-electrode tsa tungsten le phallo ea khase.

▶ Pele ho tsohle, re hloka ho tseba li-welding tsa hajoale le likarolo tse ling tsa ts'ebetso ho tsoa kareteng ea ts'ebetso ea welding. Ebe u khetha electrode ea tungsten (ka kakaretso, bophara ba 2.4mm bo sebelisoa hangata, 'me mefuta ea hona joale ea ho ikamahanya le maemo ke 150 ~ 250A, ntle le aluminium).

▶ Boholo ba molomo bo lokela ho khethoa ho latela bophara ba elektrode ea tungsten. 2.5 ~ 3.5 makhetlo a bophara ba electrode ea tungsten ke bophara bo ka hare ba molomo.

▶ Qetellong, khetha sekhahla sa phallo ea khase ho latela bophara bo ka hare ba molomo. 0.8-1.2 makhetlo a bophara ba ka hare ho molomo ke sekhahla sa phallo ea khase. Bolelele ba katoloso ea electrode ea tungsten ha ea lokela ho feta bophara bo ka hare ba nozzle, ho seng joalo li-pores li tla hlaha habonolo.

2. Lekola hore na mochini oa tjheseletsa, sistimi ea phepelo ea khase, sistimi ea phepelo ea metsi, le ho theoa fatše li ntse li le teng.

3. Hlahloba hore na workpiece e tšoaneleha:

▶ Ebang ho na le oli, mafome le litšila tse ling (chelete e ka har'a 20mm e tlameha ho hloeka le ho omella).

▶ Hore na angle ea bevel, lekhalo, le ntlha e bohlasoa li nepahetse. Haeba sekhutlo sa groove le lekhalo li le kholo, molumo oa welding o tla ba moholo 'me welding e ka etsahala habonolo. Haeba lehlakoreng la groove le le lenyenyane, lekhalo le le lenyenyane, 'me moeli o hlabang o teteaneng, ho bonolo ho baka fusion e sa fellang le welding e sa fellang. Ka kakaretso, angle ea bevel ke 30 ° ~ 32 °, lekhalo ke 0 ~ 4mm, 'me bohale bo bobebe ke 0 ~ 1mm.

▶ Moeli o fosahetseng o ke ke oa ba moholo haholo, hangata ka har'a 1mm.

▶ Hore na bolelele le palo ea lintlha tsa ho cheselletsa li-tack li kopana le litlhoko, le welding ka boeona ha ea tlameha ho ba le liphoso.

Mokhoa oa ho sebelisa argon arc welding

Argon arc ke ts'ebetso eo ho eona matsoho ka bobeli a tsamaeang ka nako e le 'ngoe. Hoa tšoana le ha letsoho le letšehali le hula selikalikoe 'me letsoho le letona le hula sekwere bophelong ba rona ba letsatsi le letsatsi. Ka hona, ho kgothaletswa hore ba sa tsoa qala ho ithuta argon arc welding ba lokela ho etsa koetliso e tšoanang, e leng ho tla thusa ho ithuta argon arc welding. .

1. Ho fepa ka terata: e arotsoe ka terata ea ho tlatsa ka hare le terata e tlatsang ka ntle.

▶ Khoele ea ho tlatsa ka ntle e ka sebelisoa bakeng sa ho koala le ho tlatsa. E sebelisa motlakase o moholoanyane. Hlooho ea terata e tjheseletsang e ka pele ho groove. Tšoara terata ea ho cheselletsa ka letsoho la hao le letšehali 'me u tsoele pele ho e kenya ka har'a letamo le qhibilihisitsoeng bakeng sa ho cheselletsa. Lekhalo la groove le hloka lekhalo le lenyane kapa le se nang letho.

Molemo oa eona ke hore hona joale e kholo 'me lekhalo le lenyenyane, kahoo katleho ea tlhahiso e phahame' me tsebo ea ho sebetsa e bonolo ho e tseba. Phoso ea eona ke hore haeba e sebelisoa bakeng sa priming, opareitara e ke ke ea bona ho qhibiliha ha bohale le bophahamo bo feteletseng ka lehlakoreng le ka morao, kahoo ho bonolo ho hlahisa sebopeho se sa tsitsang le se sa rateheng.

▶ Mohala oa ho tlatsa o ka sebelisoa feela bakeng sa welding e tlase. Sebelisa monoana oa letsoho le letšehali, monoana oa index kapa monoana o bohareng ho hokahanya motsamao oa ho fepa ka terata. Monoana o monyenyane le monoana oa lesale li tšoara terata ho laola tsela. Mohala o haufi le ntlha e lerootho ka hare ho groove, hammoho le ntlha e boreleli. Bakeng sa ho qhibiliha le ho cheselletsa, lekhalo la groove le hlokeha ho ba kholo ho feta bophara ba terata ea welding. Haeba e le poleiti, terata ea welding e ka kobeha hore e be arc.

Molemo ke hore terata ea welding e ka lehlakoreng le leng la groove, kahoo o ka bona ka ho hlaka ho qhibiliha ha bohale le terata ea welding, 'me u ka bona le matlafatso ka lehlakoreng le ka morao ka pono ea hau ea peripheral. weld e kopantsoe hantle, 'me matlafatso le khaello ea fusion ka lehlakoreng le ka morao li ka fumanoa. Taolo e ntle haholo. Bothata ke hore ts'ebetso e thata 'me e hloka hore motho ea chesehelang a be le tsebo e batlang e ipabola ea ho sebetsa. Hobane lekhalo le leholo, molumo oa welding o eketseha ho latela. Lekhalo le leholo, kahoo hona joale ho tlaase, 'me katleho ea mosebetsi e lieha ho feta ea terata ea ho tlatsa ka ntle.

2. Motsoako oa ho tjheseletsa o arotsoe ka molamu o sisinyehang le mopopo.

▶ Mofeng oa ho tsokotsa ke oa ho hatella tšubuhlellano hanyenyane holim'a seam, ebe o tsukutla letsoho haholo ho etsa welding. Monyetla oa eona ke hore nozzle ea welding e hatelloa holim'a seame sa weld 'me sephethephethe sa welding se tsitsitse haholo nakong ea ts'ebetso, kahoo seam sa weld se sirelelitsoe hantle, boleng bo botle, ponahalo e ntle haholo,' me tekanyo ea lihlahisoa tsa lihlahisoa e phahame. Haholo-holo, ho tjheseletsa ka holim'a hlooho ho bonolo haholo 'me ho ka sebelisoa ha ho tjheseletsa tšepe e sa hloekang. Fumana 'mala o motle haholo. Bothata ke hore ho thata ho ithuta. Hobane letsoho le sisinyeha haholo, ho ke ke ha khoneha ho cheselletsa litšitiso.

▶Mopo o bolela hore ntlha ea tjheseletsa e sekamela hanyane kapa e se ke ea its'etleha ka seam. Monoana o monyenyane kapa monoana oa lesale oa letsoho le letona o boetse o itšetlehile kapa o se khahlanong le workpiece. Letsoho le thekesela butle 'me le hula mofeng oa ho tjheseletsa. Melemo ea eona ke hore e bonolo ho ithuta ebile e khona ho ikamahanya le maemo. Phoso ea eona ke hore sebopeho le boleng ha li ntle joalo ka setshwano sa swing. Haholo-holo ho tjheseletsa ka holim'a hlooho ha ho na molamu oa ho sotha ho thusa ho cheselletsa. Ho thata ho fumana 'mala o loketseng le sebōpeho ha u tjheseletsa tšepe e sa hloekang.

3. Ho khantša arc

Arc starter (high-frequency oscillator kapa high-frequency pulse generator) hangata e sebelisoa ho qala arc. Electrode ea tungsten le weldment ha li kopane ho hotetsa arc. Haeba ho se na arc starter, ho qala ho sebelisoa arc (haholo-holo e sebelisetsoang ho kenya sebaka sa kaho, haholo-holo ho kenngoa sebakeng se phahameng), koporo kapa graphite e ka behoa holim'a groove ea weldment ho hotetsa arc, empa mokhoa ona o thata le ho feta. le ho sebelisoa ka seoelo. Ka kakaretso, terata ea ho tjheseletsa e sebelisoa ho hula terata ea tjheseletsa hanyenyane ho khutsufatsa weldment le eleketrode ea tungsten 'me e hakoe kapele ho hotetsa arc.

4. Welding

Ka mor'a hore arc e chesoe, weldment e lokela ho behoa pele ho metsotsoana e 3 ho isa ho e 5 qalong ea weldment. Ho fepa ka terata ho qala ka mor'a hore letamo le qhibilihisitsoeng le thehoe. Ha ho chesoa, lehlakoreng la sethunya sa terata e lokela ho ba se loketseng 'me terata ea welding e lokela ho feptjoa ka ho lekana. Sethunya se cheselletsang se lokela ho ea pele hantle 'me se tsubelle ka ho le letšehali le ka ho le letona, ka mahlakoreng a mabeli butle hanyenyane le bohareng ka potlako e nyenyane. Ela hloko ka hloko liphetoho tsa letamo le entsoeng ka ho qhibilihisoa. Ha letamo le qhibilihisitsoeng le e-ba kholoanyane, weld e ba e pharaletseng kapa e teteaneng, lebelo la ho tjheseletsa le lokela ho potlakisa kapa hona joale ho lokisoa ho khutlela fatše. Ha motsoako oa letamo o qhibilihisitsoeng o se motle 'me phepelo ea terata e ikutloa e sa sisinyehe, lebelo la ho cheselletsa le lokela ho fokotsoa kapa hona joale ho lokela ho eketsoa. Haeba e le tjheseletsa e tlase, tlhokomelo e lokela ho lebisoa mathōkong a lerootho mahlakoreng ka bobeli a groove le likhutlong tsa mahlo. Ka pono ea hau ea peripheral ka lehlakoreng le leng la seam, ela hloko liphetoho tse ling tse phahameng.

papatso

5. ho koala arc

Haeba arc e koetsoe ka ho toba, ho bonolo ho hlahisa masoba a shrinkage. Haeba sethunya sa tjheseletsa se e-na le arc starter, arc e tlameha ho koaloa nako le nako kapa e lokisoe ho ea hona joale ea arc e loketseng 'me arc e tlameha ho koaloa butle. Haeba mochini oa tjheseletsa o se na arc starter, arc e tlameha ho lebisoa butle-butle ho groove. U se ke ua hlahisa likoti tsa shrinkage ka lehlakoreng le le leng. Haeba masoba a honyela a hlaha, a tlameha ho belisoa hore a hloeke pele a chesoa.

Haeba ho koala arc ho le kopane, lenonyeletso le lokela ho siloa ka bevel pele. Ka mor'a hore lenonyeletso le qhibilihe ka ho feletseng, weld pele 10 ~ 20mm 'me butle-butle koala arc ho qoba ho honyela ha likoti. Ha ho etsoa tlhahiso, hangata ho bonoa hore manonyeletso ha a hloekisoe ka li-bevel, empa nako ea welding ea manonyeletso e lelefalitsoe ka ho toba. Ena ke tloaelo e mpe haholo. Ka tsela ena, manonyeletso a atisa ho ba le concave, manonyeletso a sa tsitsang le libaka tse ka morao tse arohaneng, tse amang ponahalo ea ho theha. Ka mohlala, haeba e le alloy e phahameng Thepa e boetse e na le tšekamelo ea ho mapetsong.

Ka mor'a ho cheselletsa, hlahloba hore na ponahalo e khotsofatsa. Tima motlakase le khase ha u tsamaea.


Nako ea poso: Dec-19-2023