Tlhokomeliso ea Mohlophisi: Pharmaceutical Online e thabetse ho hlahisa sehlooho sena sa likarolo tse 'nè mabapi le orbital welding of bioprocess piping ke setsebi sa indasteri Barbara Henon oa Arc Machines.Sengoliloeng sena se nkiloe ho tsoa puong ea Dr. Henon kopanong ea ASME bofelong ba selemo se fetileng.
Thibela tahlehelo ea ho hanyetsa kutu.Metsi a phahameng a hloekileng a kang DI kapa WFI ke etchant e mabifi haholo bakeng sa tšepe e sa hloekang.Ho phaella moo, WFI ea sehlopha sa meriana e tsamaisoa ka libaesekele ka mocheso o phahameng (80 ° C) ho boloka sterility.Ho na le phapang e poteletseng pakeng tsa ho theola mocheso o lekaneng ho tšehetsa lintho tse phelang tse phelang ho khothalletsa tlhahiso ea "rougery" e bakang "rouge" tlhahiso ea "rougery" ho phahamisa tlhahiso ea "vaugery" e bakang "rouge" ho hlahisa sehlahisoa se lekaneng. ka ho bola ha likaroloana tsa tsamaiso ea liphaephe tsa tšepe tse sa hloekang. Litšila le li-oxide tsa tšepe e ka 'na ea e-ba likarolo tse ka sehloohong, empa mefuta e sa tšoaneng ea tšepe, chromium le nickel e ka' na ea e-ba teng.
Ho tjheseletsa ho ka ama hampe kutu ho hanyetsa.Mobala o chesang ke phello ea lintho tse oxidizing tse behiloeng holim'a li-welds le HAZs nakong ea ho cheselletsa, li kotsi haholo-holo, 'me li amahanngoa le ho thehoa ha rouge tsamaisong ea metsi a meriana.Chromium oxide formation e ka etsa hore ho be le tint e chesang, e siea ka morao ho chromium-susrosioning layer, ho tlosoa ha chromium-susrosioning layer, ho tlosoa ha chromium le ho tlosoa ha 'mala. ho tlosa tšepe holim'a metsi, ho kenyelletsa le lera le ka tlaase la chromium, le ho tsosolosa ho hanyetsa ha kutu ho maemo a haufi le maemo a tšepe a motheo.Leha ho le joalo, pickling le ho sila li kotsi ho ea holimo finish.Passivation ea tsamaiso ea liphaephe ka nitric acid kapa chelating agent formulations e etsoa ho hlōla liphello tse mpe tsa tjheseletsa le lesela le entsoeng ka pele ho tsamaiso ea phala e ka boela ea kenngoa ka har'a tsamaiso ea phala ea electron e ne e ka boela ea kenngoa tsamaisong ea phala ea pitsa. ea oksijene, chromium, tšepe, nickel le manganese tse etsahetseng tjheseletsa le mocheso ameha sebaka ho ea pele ho weld state.Leha ho le joalo, passivation feela ama lera bokantle holim'a 'me ha e phunyeletse ka tlaase ho 50 angstroms, athe mogote coloration ka atolosa 1000 angstroms kapa ho feta ka tlas'a bokaholimo.
Ka hona, e le ho kenya lisebelisoa tsa liphaephe tse thibelang kutu haufi le li-substrates tse se nang welded, ke habohlokoa ho leka ho fokotsa ts'enyehelo e bakoang ke ho cheseletsa le ho etsoa ka masela ho maemo a ka fumanoang haholo ka passivation. thibela tahlehelo ea ho hanyetsa ho bola.Ho laola mokhoa oa ho etsa lihlahisoa ho finyella li-welds tse pheta-phetoang le tse tsitsitseng tsa boleng bo phahameng, hammoho le ho sebetsana ka hloko ha liphaephe tsa tšepe tse sa hloekang le likaroloana nakong ea tlhahiso ea ho thibela tšilafalo, ke litlhoko tsa bohlokoa bakeng sa tsamaiso ea liphaephe ea boleng bo phahameng e hanelang ho bola le ho fana ka tšebeletso ea nako e telele ea tlhahiso.
Lisebelisoa tse sebelisitsoeng litsing tsa liphaephe tsa tšepe tse sa hloekang tsa biopharmaceutical li bile le phetoho e lebisang ntlafatsong ea ho hanyetsa kutu lilemong tse leshome tse fetileng. Litšepe tse ngata tse sa hloekang tse sebelisitsoeng pele ho 1980 e ne e le tšepe e sa hloekang ea 304 hobane e ne e batla e le theko e tlase ebile e ntlafatsoa ho feta koporo e sebelisitsoeng pele. , 'me ha u hloke phekolo e khethehileng ea preheat le post heat.
Haufinyane tjena, tšebeliso ea tšepe e sa hloekang ea 316 lits'ebetsong tsa liphaephe tse phahameng tsa bohloeki e 'nile ea eketseha.Mofuta oa 316 o tšoana le ho hlophisoa ho Mofuta oa 304, empa ho phaella ho chromium le lisebelisoa tsa nickel alloying tse tloaelehileng ka bobeli, 316 e na le hoo e ka bang 2% molybdenum, e ntlafatsang haholo 313 316L ho hanyetsa, 6L, 6L, ho hanyetsa, 6L, ho 316L. limaraka, li na le lik'habone tse tlase ho feta limaraka tse tloaelehileng (0.035% vs. 0.08%). Phokotso ena ea carbon content e reretsoe ho fokotsa palo ea precipitation ea carbide e ka 'nang ea etsahala ka lebaka la ho cheselletsa.Ena ke ho thehoa ha chromium carbide, e fokotsang meeli ea lijo-thollo tsa chromium base metal, e etsang hore e be susceptible. E itšetlehile ka mocheso 'me ke bothata bo boholoanyane ha ho soasoa ka letsoho.Re bontšitse hore orbital welding ea super-austenitic stainless steel AL-6XN e fana ka li-welds tse hanyetsanang le kutu ho feta li-welds tse tšoanang tse entsoeng ka letsoho. e felisa pula ea carbide e le sesosa sa nts'etsopele ea ho senyeha ha tsamaiso ea liphaephe.
Mocheso-ho-mocheso o fapaneng oa tšepe e sa hloekang.Le hoja litekanyetso tsa tjheseletsa le lintlha tse ling li ka bolokoa ka har'a mamello e tiileng, ho ntse ho e-na le phapang pakeng tsa mocheso oa mocheso o hlokahalang bakeng sa ho cheselletsa tšepe e sa hloekang ho tloha mocheso ho ea mocheso.Nomoro ea mocheso ke nomoro ea lotho e abetsoeng ho qhibiliha ha tšepe e itseng fekthering.The exact chemical composition of each batch is recorded with the iron batch iTRM (Pudent) Tlaleho ea Mocheso oa Falt e ngotsoe ka palo ea tšepe ea FaltMTR. ka 1538 ° C (2800 ° F), ha litšepe tse kopantsoeng li qhibiliha ka har'a mefuta e fapaneng ea mocheso, ho itšetlehile ka mofuta le mahloriso a motsoako o mong le o mong oa motsoako kapa trace element e teng. Kaha ha ho licheso tse peli tsa tšepe e sa hloekang tse tla ba le mahloriso a tšoanang hantle a ntho e 'ngoe le e' ngoe, litšobotsi tsa ho tjheseletsa li tla fapana ho tloha sebōping ho ea ho sebōpi.
SEM ea 316L pipe orbital welds ka AOD pipe (top) le EBR material (tlase) e bontšitse phapang e kholo ho boreleli ba sefaha sa weld.
Le hoja mokhoa o le mong oa ho tjheseletsa o ka sebetsa bakeng sa mocheso o mongata o nang le OD le botenya ba marako a tšoanang, mocheso o mong o hloka amperage e fokolang 'me tse ling li hloka amperage e phahameng ho feta e tloaelehileng.Ka lebaka lena, ho futhumatsa ha lisebelisoa tse fapaneng sebakeng sa mosebetsi ho tlameha ho lateloa ka hloko ho qoba mathata a ka bang teng.
Sulfur problem.Sebabole sa Elemental ke litšila tse amanang le tšepe tse ntšoang haholo nakong ea ho etsoa ha tšepe.AISI Type 304 le 316 stainless steels li hlalositsoe ka tekanyo e phahameng ea sebabole ea 0.030%. Arc Remelting (VIM + VAR), ho se ho khoneha ho hlahisa litšepe tse khethehileng haholo ka litsela tse latelang.motsoako oa tsona oa lik'hemik'hale.Ho hlokometsoe hore thepa ea letamo la weld e fetoha ha sebabole sa tšepe se le ka tlase ho hoo e ka bang 0.008%.
Maemong a tlaase haholo a sebabole (0.001% - 0.003%), ho kenella ha puddle ea weld ho ba pharaletseng haholo ha ho bapisoa le li-welds tse tšoanang tse entsoeng ka thepa ea sebabole e bohareng. Sena se etsa hore lisebelisoa tse nang le sebabole tse tlase haholo li thatafalloe, haholo-holo ka marako a teteaneng. Qetellong e phahameng ea mahloriso a sebabole ka 304 kapa 316 tšepe e sa hloekang, sefaha sa weld se atisa ho ba mokelikeli o fokolang ka ponahalo le ho ba thata ho feta lisebelisoa tsa sebabole tse mahareng. ho ASTM A270 S2 bakeng sa li-tubing tsa boleng ba meriana.
Baetsi ba peipi ea tšepe e sa hloekang ea electropolished ba hlokometse hore esita le maemo a itekanetseng a sebabole ka 316 kapa 316L a etsa hore ho be thata ho khotsofatsa litlhoko tsa bareki ba bona ba semiconductor le biopharmaceutical bakeng sa libaka tse ka hare tse boreleli, tse se nang sekoti. se sulfide (MnS) "li-stringers" tse tlosoa nakong ea electropolishing 'me li siea li-voids ka har'a 0.25-1.0 micron range.
Baetsi le barekisi ba li-tubente tsa elektrone ba ile ba tsamaisa lisebelisoa tse thata ho fihlela likarolo tsa bona tsa motlakase, "C. Lisebelisoa tsa "aner".
Ho phaella tabeng ea ho ntlafatsa ho cheseha ha tšepe e sa hloekang, boteng ba sebabole bo bong bo boetse bo ntlafatsa machinability.Ka lebaka leo, bahlahisi le bahlahisi ba atisa ho khetha thepa qetellong ea mefuta e mengata ea sebabole e boletsoeng. Li-tubing tse nang le sebabole tse tlaase haholo ho li-fittings, li-valve kapa li-tubing tse nang le sebabole se phahameng se ka baka mathata a mangata a sebabole. ts'ebetso e etsahala, ho kenella ho fetoha ho teba ka lehlakoreng le tlaase la sebabole ho feta ka lehlakoreng le phahameng la sebabole, e leng se fapaneng le se etsahalang ha liphaephe tsa ho tjheseletsa tse nang le likhahla tse tšoanang tsa sebabole.Maemong a feteletseng, sefaha sa weld se ka phunyeletsa ka ho feletseng thepa e tlaase ea sebabole 'me ea siea hare-hare ea weld e sa phutholoha ka ho feletseng (Fihey le Simeneau, ho laela dikahare tsa phala ea sulfur ho sulfur ea 192). penter Steel Division of Car-penter Technology Corporation of Pennsylvania e hlahisitse sebabole se tlase (0.005% max) 316 bar stock (Type 316L-SCQ) (VIM+VAR) ) bakeng sa ho etsa li-fittings le likarolo tse ling tse reretsoeng ho chesetsoa liphaepheng tse tlaase tsa sebabole.Ho tjheseletsa lisebelisoa tse peli tse tlase haholo tsa sebabole ho feta lisebelisoa tsa sebabole tse tlase haholo ho tse ling ho bonolo haholo.
Phetoho ea tšebeliso ea li-tubes tse tlaase-sulfur e bakoa haholo ke tlhokahalo ea ho fumana libaka tse boreleli tsa electropolished tsa ka hare.Le hoja ho qeta holimo le electropolishing ke tsa bohlokoa ho indasteri ea semiconductor le indasteri ea biotech / pharmaceutical, SEMI, ha ho ngoloa tlhaloso ea indasteri ea semiconductor, e hlalositsoe hore 316L Survey for process gas 0. ka lehlakoreng le leng, e fetotse litlhaloso tsa bona tsa ASTM 270 ho kenyelletsa li-tubing tsa sehlopha sa meriana tse lekanyetsang lihlahisoa tsa sebabole ho tloha ho 0.005 ho ea ho 0.017. Sena se lokela ho baka mathata a fokolang a ho tjheseletsa ha ho bapisoa le li-sulfur tse tlaase. ho futhumala ha thepa le ho hlahloba pele ho ho etsoa Solder ho lumellana pakeng tsa ho futhumatsa.Ho hlahisa li-welds.
Lintho tse ling tsa ho latela lintlha tse kenyelletsang sebabole, oksijene, aluminium, silicon le manganese li fumanoe li ama ho kenella.Tsela ka bongata ba aluminium, silicon, calcium, titanium le chromium tse teng ka tšepe ea motheo kaha li-oxide inclusions li amahanngoa le ho thehoa ha slag nakong ea ho cheselletsa.
Liphello tsa likarolo tse fapa-fapaneng li bokellana, kahoo boteng ba oksijene bo ka fokotsa tse ling tsa liphello tse tlaase tsa sebabole.Maemo a phahameng a aluminium a ka thibela phello e ntle ea ho kenella ha sebabole.Manganese e fetoha mocheso oa ho cheselletsa mocheso le ho kenya sebakeng se amehileng ke mocheso.Li-deposit tsena tsa manganese li amahanngoa le tahlehelo ea corrosion resistance. esita le lisebelisoa tsa ultra-low manganese 316L ho thibela tahlehelo ena ea ho hanyetsa kutu.
Slag formation.Slag lihlekehlekeng ka linako tse ling hlaha ka sefaha tšepe e sa hloekang bakeng sa heats tse ling.Ena ke ka tlhaho taba ea lintho tse bonahalang, empa ka linako tse ling liphetoho ka tjheseletsa parameters ka fokotsa sena, kapa liphetoho argon/hydrogen motsoako ka ntlafatsa weld.Pollard fumane hore karo-karolelano ea aluminium ho silicon ka tšepe botlaaseng ama ho boloka slag formation. .010% le silicon dikahare ho 0.5%.Leha ho le joalo, ha karo-karolelano ea Al / Si e ka holimo ho boemo bona, spherical slag ka 'na theha ho e-na le mofuta oa letlapa.Mofuta ona oa slag o ka tloha likoting ka mor'a electropolishing, e leng e sa amoheleheng bakeng sa dikopo phahameng-hloekileng.Lihlekehleke tsa Slag tse theha ka OD ea tjheseletsa ho ka etsa hore ho ka etsa hore ho se lekane sephetho sa ID ea penepete ea ID. ld bead e kanna ea senyeha habonolo.
Single-run weld with pulsation.Standard automatic orbital tube welding is a single pass weld with pulsed current and continuous constant speed rotation.Mokhoa ona o loketse phala e nang le bophara ba ka ntle ho tloha 1/8 "ho ea ho hoo e ka bang 7" le marako a marako a 0.083" le ka tlase. e teng empa ha ho na ho potoloha.Ka mor'a ho lieha hona ho potoloha, eleketrode e potoloha ho pota-potile motsoako oa weld ho fihlela weld e kopana kapa e feta karolo ea pele ea weld nakong ea lera la ho qetela la welding.
Mokhoa oa mohato ("synchronized" welding) . Bakeng sa tjheseletsa ea fusion ea lisebelisoa tse teteaneng tse nang le marako, ka tloaelo ho feta 0.083 inch, mohloli oa matla oa fusion welding o ka sebelisoa ka mokhoa oa ho lumellana kapa oa mohato. ka tatellano ea 0.5 ho metsotsoana e 1.5, bapisoa le ea leshome kapa lekholo ea pulse nako ea bobeli bakeng sa tjheseletsa tloaelehileng. Mokhoa ona ka ka katleho weld 0.154 "kapa 6" teteaneng 40 gauge 40 tšesaane lerako phala le 0.154 "kapa 6" ″ lerako le botenya ho etsa lerako le botenya ba ho etsa likarolo tse joalo tsa welerreld ho etsa likarolo tse joalo tsa welerreld. lisebelisoa ho liphaephe moo ho ka 'nang ha e-ba le liphapang tsa ho mamellana ha mahlakore, ho se lumellane ho itseng kapa ho se lumellane ha mocheso oa Material. Mofuta ona oa ho cheselletsa o hloka hoo e ka bang habeli nako ea arc ea ho cheselletsa ho tloaelehileng 'me ha e tšoanelehe haholo bakeng sa lisebelisoa tsa ultra-high-purity (UHP) ka lebaka la seam se pharaletseng, se thata.
Mehloli ea morao-rao ea mehloli ea matla a tjheseletsa e thehiloe ho microprocessor-based le mananeo a polokelo a hlalosang litekanyetso tsa lipalo bakeng sa litekanyo tsa ho tjheseletsa bakeng sa bophara bo itseng (OD) le botenya ba lerako la phala e lokelang ho kenngoa, ho akarelletsa le nako ea ho hloekisa, hona joale, lebelo la maeto (RPM) ), palo ea lihlopha le nako ka lera, nako ea pulse, nako ea ho theoha, joalo-joalo. llation amplitude le ho lula nako, AVC (arc voltage control ho fana ka kamehla arc gap), le upslope.Ho etsa fusion welding, kenya tjheseletsa hlooho ka eleketrode e loketseng le phala clamp kenya ka phala le hopola tjheseletsa kemiso kapa lenaneo ho tloha mohloling oa matla memory.The tjheseletsa tatelano e qalisoa ka ho tobetsa konopo kapa lera la mokhanni konopo le ho kenella ho tsoela pele ntle le tjheseletsa.
Liphetoho tse sa hlophisehang.Ho fumana boleng bo botle ka mokhoa o tsitsitseng, litekanyetso tsa ho tjheseletsa li tlameha ho laoloa ka hloko.Sena se finyelloa ka ho nepahala ha mohloli oa matla a ho tjheseletsa le lenaneo la ho tjheseletsa, e leng sete ya litaelo tse kentsoeng mohloling oa matla, tse nang le litekanyetso tsa ho tjheseletsa, bakeng sa ho tjheseletsa boholo bo itseng ba phala kapa phala. lding e kopana le litekanyetso tseo ho lumellanoeng ka tsona.Leha ho le joalo, lintlha tse ling le mekhoa e meng ntle le li-welding parameters le tsona li tlameha ho laoloa ka hloko.Mabaka ana a kenyelletsa tšebeliso ea thepa e ntle ea ho lokisa qetellong, mekhoa e metle ea ho hloekisa le ho sebetsana le mekhoa e metle, mamello e ntle ea dimensional ea li-tubing kapa likarolo tse ling tse nang le welded, mofuta o tsitsitseng oa tungsten le boholo, likhase tse se nang metsi tse hloekisitsoeng haholo, le ho ela hloko lintho tse ngata tse fapaneng.
Litlhoko tsa ho itokisa bakeng sa ho tjheseletsa ha phala ke tse mahlonoko haholo bakeng sa tjheseletsa orbital ho feta pukwanana tjheseletsa.Manonyeletso bakeng sa orbital phala tjheseletsa hangata lisekoere butt manonyeletso.Ho finyella repeatability lakatswang ka tjheseletsa orbital, e nepahetseng, e tsitsitseng, ho lokisetsa ho qetela machined ho hlokahala.Kaha tjheseletsa hona joale itšetlehile ka botenya ba lebota, lipheletsong e lokela ho ba lisekoere ka ho se nang burrs kapa botenya ID ka botenya ID (ID kapa ID).
phala lipheletsong lokela ho lumellana hammoho hloohong tjheseletsa e le hore ho se na lekhalo le hlokomelehang pakeng tsa lipheletsong tsa lisekoere butt kopanelo.Le hoja manonyeletso tjheseletsa le likheo tse nyenyane ka finyelloang, boleng weld ka 'na a ameha hampe.The lekhalo le leholoanyane, ho ka etsahala hore ho na le bothata.Kopano e futsanehileng e ka fella ka ho hlōleha ka ho feletseng ha soldering.Pipe phala lisakha le ho khoneha ho felisa liphaephe tse tšoanang le lipeipi tsa phepelo ea Georges le ho felisa lipeipi tse tšoanang le lipeipi tse qetellang ka George Fi. tse kang tse entsoeng ke Protem, Wachs, le tse ling, tse atisang ho sebelisoa ho etsa li-welds tsa orbital tse boreleli tse loketseng bakeng sa machining.
Ho phaella ho tjheseletsa parameters hore input matla a ho tjheseletsa, ho na le lintho tse ling tse fapaneng tse ka ba le phello e tebileng ho tjheseletsa, empa ha se karolo ea mokhoa oa sebele oa ho tjheseletsa. Sena se kenyelletsa mofuta le boholo ba tungsten, mofuta le bohloeki ba khase e sebelisetsoang ho sireletsa arc le ho hloekisa ka hare ho motsoako oa weld, tekanyo ea phallo ea khase e sebelisetsoang ho hloekisa hlooho, mohloli o mong le o mong o sebelisoang ho hloekisa hlooho, mohloli o mong le o mong oa motlakase. mefuta e "sa keng ea lokisoa" 'me u e tlalehe ka kemiso ea ho cheselletsa.Ka mohlala, mofuta oa khase o nkoa e le ntho e fapaneng ea bohlokoa ho Tlhaloso ea Ts'ebetso ea Welding (WPS) bakeng sa mekhoa ea ho cheselletsa ho lumellana le ASME Section IX Boiler and Pressure Vessel Code.Liphetoho tsa mofuta oa khase kapa liphesente tsa motsoako oa khase, kapa ho felisoa ha ID ho hloekisa ho hloka hore revalid.
welding gas.Stainless steel ha e hanyetsane le oxidation ea oksijene ea sepakapaka mocheso oa kamore. dation-induced discoloration e hlahang ka hare kapa haufi le weld ka mor'a ho cheselletsa.Haeba khase ea purge e se ea boleng bo phahameng ka ho fetisisa kapa haeba tsamaiso ea purge e sa lutle ka ho feletseng hoo moea o fokolang o kenang tsamaisong ea ho hloekisa, oxidation e ka 'na ea e-ba teal e khanyang kapa bluish. 996-99.997% e hloekileng, ho itšetlehile ka mofani oa thepa, 'me e na le 5-7 ppm ea oksijene le litšila tse ling, ho kenyeletsoa H2O, O2, CO2, hydrocarbons, joalo-joalo, bakeng sa kakaretso ea 40 ppm ka holimo.Argon ea bohloeki bo phahameng ka cylinder kapa argon ea metsi ka Dewar9m9109 e hloekileng ea Dewar kapa 91092% e hloekileng. ppm oksijene. HLOKOMELA: Lisebelisoa tsa khase tse kang Nanochem kapa Mohlokomeli oa Liheke li ka sebelisoa nakong ea ho hloekisa ho fokotsa maemo a silafatso ho likarolo tsa limilione tse likete (ppb).
metsoako e tsoakiloeng.Metsoako ea khase e kang 75% helium/25% argon le 95% argon/5% hydrogen e ka sebelisoa e le likhase tse sireletsang bakeng sa lits'ebetso tse khethehileng.Metsoako e 'meli e ile ea hlahisa li-welds tse chesang ho feta tse entsoeng tlas'a litlhophiso tse tšoanang tsa lenaneo le argon.Metsoako ea Helium e loketse ka ho khetheha bakeng sa ho kenella ka ho fetisisa ka fusion welding holim'a carbons e entsoeng ka tšepe ea hydrogen e sebelisa sesebelisoa sa hydrogen. likhase tse elding bakeng sa lits'ebetso tsa UHP.Metsoako ea haedrojene e na le melemo e mengata, empa hape le mefokolo e meng e tebileng.Molemo ke hore e hlahisa puddle e metsi le sebaka se boreleli sa weld, se loketseng ho kenya tšebetsong litsamaiso tsa phepelo ea khase e phahameng haholo e boreleli ka hohle kamoo ho ka khonehang.Ho ba teng ha haedrojene ho fana ka moea o fokotsang moea, kahoo haeba mesaletsa ea oksijene e na le oksijene e fokolang, kahoo haeba mesaletsa ea oksijene e hloekile, ho na le motsoako o fokolang oa oksijene. argon e hloekileng.Phello ena e nepahetse ho hoo e ka bang 5% ea hydrogen content. Ba bang ba sebelisa motsoako oa 95/5% oa argon / hydrogen e le ho hloekisa ID ho ntlafatsa ponahalo ea sefaha se ka hare sa weld.
The weld bead sebelisa motsoako oa haedrojene ha khase e sireletsang e moqotetsane, ntle le hore tšepe e sa hloekang e na le sebabole se tlaase haholo 'me se hlahisa mocheso o mongata ka har'a weld ho feta boemo ba hona joale bo nang le argon e sa tsoakoang.Tlhaloso e kholo ea metsoako ea argon / hydrogen ke hore arc ha e tsitsitse ho feta fusion ea argon e hloekileng,' me ho na le tšitiso e matla ea ho kheloha ho ka 'na ha e-ba teng. Ka lebaka la hore mocheso o hlahisoang ke arc o fapana le motsoako oa hydrogen, ho bohlokoa hore ho be le mahloriso a sa khaotseng, 'me ho na le phapang pakeng tsa khase ea libotlolo e kopantsoeng pele. s ha e e-s'o ikemisetse, ho 'nile ha tlalehoa hore arc e thata haholoanyane' me tungsten e ka 'na ea hloka ho nkeloa sebaka ka mor'a hore ho be le welds e le' ngoe kapa tse peli.Metsoako ea Argon / hydrogen e ke ke ea sebelisoa ho cheselletsa carbon steel kapa titanium.
Tšobotsi e khethollang ea ts'ebetso ea TIG ke hore ha e je li-electrode.Tungsten e na le ntlha e phahameng ka ho fetisisa ea ho qhibiliha ea tšepe leha e le efe (6098 ° F; 3370 ° C) 'me ke elektronike e ntle ea elektronike, e etsang hore e tšoanelehe ka ho khetheha bakeng sa ho sebelisoa e le electrode e sa jeoang.Thepa ea eona e ntlafatsoa ka ho eketsa 2% ea li-oxide tse ling tse sa tloaelehang tsa lefatše tse kang lanum oxide kapa turc oxide e ntlafetseng. ngsten ha e sebelisoe hangata ho GTAW ka lebaka la thepa e phahameng ea cerium tungsten, haholo-holo bakeng sa lits'ebetso tsa orbital GTAW.Thorium tungsten e sebelisoa ka tlaase ho nako e fetileng hobane e batla e le mahlaseli a kotsi.
Li-electrode tse nang le qetello e bentšitsoeng li lekana ka boholo. Sebaka se boreleli se lula se le molemo ho sebaka se mahoashe kapa se sa tsitsang, kaha ho lumellana ha electrode geometry ho bohlokoa bakeng sa liphello tse tsitsitseng, tse ts'oanelang ho ts'oanela. ke habohlokoa ho mechine e sila ntlha ea electrode ho etsa bonnete ba ho pheta-pheta ha tungsten geometry le weld repeatability.Tlhaloso e sa hlakang e qobella arc ho tloha ho weld ho ea sebakeng se le seng holim'a tungsten.The bophara ba ntlha e laola sebopeho sa arc le palo ea ho kenella ka mokhoa o itseng oa hona joale.The angle taper e ama mokhoa oa hona joale / oa motlakase oa motlakase o lokelang ho ba le litšobotsi tsa bohlokoa tsa ho laola le tungsten ea tungsten. e sebelisetsoang ho beha lekhalo la arc.Lekhalo la arc bakeng sa boleng bo itseng ba hona joale le etsa qeto ea hore na motlakase o sebelisoa hokae 'me kahoo matla a sebelisoang ho cheselletsa.
The eleketrode boholo le ntlha bophara ba eona ba ntlha a khetha ho ea ka tjheseletsa hona joale intensity.Haeba hona joale e phahameng haholo bakeng sa eleketrode kapa ntlha ea eona, e ka lahleheloa ke tšepe ho tloha ntlheng, 'me ho sebelisa li-electrode tse nang le bophara ba ntlha e kholo haholo bakeng sa hona joale ho ka baka arc drift. E sebelisoa ka li-electrode tsa 0.040 "diameter bakeng sa ho tjheseletsa Likarolo tse nepahetseng tse nyane. Bakeng sa ho pheta-pheta ha ts'ebetso ea welding, mofuta oa tungsten le ho qeta, bolelele, taper angle, bophara, bophara ba ntlha le lekhalo la arc kaofela li tlameha ho hlalosoa le ho laoloa. Bakeng sa lits'ebetso tsa li-tube welding, cerium tungsten e khothalletsoa kamehla hobane mofuta ona o na le bophelo bo bolelele ba ts'ebeletso ho feta mefuta e meng hape e na le litšobotsi tse ntle haholo tsa li-non-ignition tse sebetsang.
Bakeng sa tlhahisoleseding e eketsehileng, ka kopo ikopanye le Barbara Henon, Mookameli oa Liphatlalatso tsa Theknoloji, Arc Machines, Inc., 10280 Glenoaks Blvd., Pacoima, CA 91331.Phone: 818-896-9556.Fax: 818-890-3724.