Litšepe tse sa hloekang tse khethang tsebiso ea ho etsa litšepe

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1. Lintho tsa 'mele tsa tšepe e sa hloekang ea austenitic

High resistivity - tlas'a motheo oa hona joale o tšoanang, mocheso o eketsehileng o hlahisoa ka nako ea nako
Coefficient e kholo ea ho atolosa linear - Tlas'a mocheso o tšoanang oa mocheso, deformation e kholo 'me khatello ea kelello e tla hlahisoa.
Ho se sebetse hantle ha mocheso - ho fokotsa mocheso butle.

2. Mefokolo e tloaelehileng ts'ebetsong ea welding ea tšepe e sa hloekang ea austenitic

1) Stomata: Li-pores tsa hydrogen tse bakoang ke mongobo kapa ho omella ho sa lekaneng li etsahala hangata
2) Mapetso: mapetsong a chesang le mapheo a sekoti a arc a bakoang ke ho arohana ha P le S ho etsahala hangata (ela hloko pokello ea arc e ka qojoa)
3) Intergranular corrosion: ho lula sebakeng se matla sa mocheso oa 450-850 ° C nako e telele, moeli oa lijo-thollo o etsa hore chromium carbides e thehe meeli ea lijo-thollo tse futsanehileng tsa chromium.

Tsebiso ea litšepe tse se nang tšepe-khetha-weling-fabrication02

Stomata

Tsebiso ea litšepe tse sa hloekang-choosing-weling-fabrication01

Mapetso

Tsebiso ea ho etsa litšepe tse sa hloekang-khetho-tsohle-tsebiso2

Intergranular corrosion

3 Ts'epe e sa hloekang e nang le lisebelisoa tsa tjheseletsa tsa elektrode ka letsoho

Boloka boemo
E tlameha ho bolokoa sebakeng se omeletseng, ho kgothaletswa hore mocheso o ka hare o ka holimo ho 5 ° C, mongobo o lekanyelitsoeng ke ≤ 60%, 'me o bolokiloe ka nako e ka tlaase ho lilemo tse 3.
Ha e bolokoa, e tlameha ho ba 300mm ka holim'a fatše le ho feta 300mm ka holim'a lebota.
U se ke ua e lahlela ka ho rata ha u jere, ho seng joalo ho bonolo ho etsa hore letlalo le oe.

Ho itokisa pele ho tjheseletsa
1) Molamu oa welding o hloka ho omisoa bakeng sa 300 · 350 ° C bakeng sa hora e le 'ngoe,' me mocheso o ka eketsoa ho 350 ° C kapa nako ea ho omisa e ka atolosoa ka nepo ha e kolobile haholo, 'me palo ea likarolo tse pakiloeng nakong ea ho omisa. ho omisa ha hoa lokela ho feta likarolo tse 3; Ho molemo ho e sebelisa ka ho omisa kapa ho e kenya ka nkhong e matla ea ho kenya letsoho nako e sa feteng matsatsi a 2 ho e boloka ho qoba ho omisa ho sa hlokahaleng ho thibela letlalo la molamu oa welding hore le se ke la oa.
2) Mafome a oli le metsi holim'a welding a hloka ho hloekisoa hantle

Taolo ea ts'ebetso ea welding
1) Khetho ea hajoale: Sheba I=(25-40)*DD ke bophara ba electrode
2) Leka ho fokotsa welding ea arc
3) Molamu oa welding ha oa lokela ho ba bophara haholo, hangata ka makhetlo a 3 bophara ba eleketrode.
4) Lebelo la tjheseletsa ha lea lokela ho lieha haholo ho thibela ho chesa le ho slagging; Leha ho le joalo, tabeng ea ho phunyeha ha bonolo, u ka khetha tjheseletsa e nyenyane ea hona joale e liehang
5) Ka lebaka la litšoaneleho tsa tšepe e sa hloekang ka welding e otlolohileng, tšepe e qhibilihisitsoeng e bonolo ho phalla, 'me khetho e ntle ka ho fetisisa ke ho sebelisa mokhoa oa ho senya arc.
6) Ha ho tjheseletsa ka mekhahlelo e mengata (channel), slag ea welding e tlameha ho hloekisoa
7) Sekoti sa arc se tlameha ho tlatsoa ha arc e koetsoe

Litaelo tse ling
1) Ha o sebelisa motlakase oa AC, splash e batla e le khōlō, letlalo le bonolo ho khubelu, botebo ba ho kenella ha bo teba, 'me ho bonolo ho khomarela boto, kahoo ho kgothaletswa ho sebelisa welding ea DC +.
2) Ha u sebelisa DC, terata ea fatše e molemo ka ho fetisisa e hokahane le bohareng ba seteishene mme e tsitsitse ho thibela ho kheloha ha arc kapa ho senyeha ha arc.

Sehlopha

Mofuta oa letlalo

Sehlahisoa

Mocheso

Nako

ts'epe e sa beng le mabali

Mofuta oa calcium ea titanium

E307-16, E308-16, E308L-16, E309-16, E309H-16、E309L-16、E309LMo-16、E310-16、E310Mo-10、E310Nb-16、E316-16、E316、E316、E316、E316、E316、E316,E316 16,E317L-16,E318-16,E320-16,E347-16,E385-16,E410-16,E410NiMo-16,E2209-16,E2307-16,E2553-16,E2553,E2592,E65,4-19 E2595-16

300-350 ℃

60 mets

ts'epe e sa beng le mabali

Mofuta o tlase oa hydrogen

308,309,310,316,347,385,507,2209,2553,2593,2594,2595

300-350 ℃

60 mets

Kakaretso-ea-khabone-tšepe-tšepe-ts'ebetso03

Nako ea poso: Oct-13-2022