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1. Izinto ezibonakalayo zensimbi engagqwali ye-austenitic
Ukumelana okuphezulu - ngaphansi kwesisekelo samanje esifanayo, ukushisa okwengeziwe kukhiqizwa ngeyunithi ngayinye yesikhathi
I-coefficient enkulu yokunwetshwa komugqa - Ngaphansi kokufaka okufanayo kwezinga lokushisa, ukuwohloka kukhulu futhi kuzokwenziwa ingcindezi.
Ukungahambi kahle kwe-thermal - ukuchithwa kokushisa okuhamba kancane.
2. Ukushiyeka okuvamile kwinqubo yokushisela yensimbi engagqwali ye-austenitic
I-1) I-Stomata: Izimbotshana ze-hydrogen ezibangelwa umswakama noma ukomisa okwanele kwenzeka kaningi
2) Imifantu: imifantu eshisayo kanye nokuqhekeka kwemigodi ye-arc okubangelwa ukuhlukaniswa kwe-P no-S kwenzeka kaningi (naka ukuqoqwa kwe-arc kungagwenywa)
3) I-Intergranular corrosion: ukuhlala endaweni ezwelayo yokushisa engu-450-850 °C isikhathi eside, umngcele wokusanhlamvu ubiza i-chromium carbides ukuze yakhe imingcele yokusanhlamvu empofu nge-chromium.
Stomata
Imifantu
Ukugqwala kwe-Intergranular
3 Insimbi engagqwali ene-electrode yezandla izinto ezibalulekile zokushisela
Londoloza isimo
Kufanele igcinwe endaweni eyomile, kunconywa ukuthi izinga lokushisa langaphakathi libe ngaphezu kuka-5 ° C, umswakama ohlobene ≤ 60%, futhi ugcinwe isikhathi esingaphansi kweminyaka emi-3.
Lapho uyigcina, kufanele ibe ngu-300mm ngaphezu komhlabathi futhi ibe ngaphezu kuka-300mm ngaphezu kodonga.
Ungayilahli ngokuthanda kwakho lapho uthwala, ngaphandle kwalokho kulula ukubangela ukuba isikhumba siwe.
Ukulungiselela ngaphambi kokushisela
I-1) Induku yokushisela idinga ukumiswa 300 · 350 ° C ihora elingu-1, futhi izinga lokushisa lingakhuphuka libe ngu-350 ° C noma isikhathi sokumisa singanwetshwa ngokufanelekile lapho simanzi kakhulu, kanye nenani lezingqimba ezihlanganisiwe ngesikhathi. ukomisa akufanele kudlule izingqimba ezi-3; Kungcono ukuyisebenzisela ukomisa noma ukuyibeka ebhakedeni elinamandla lokufaka i-insulation isikhathi esingekho ngaphezu kwezinsuku ezi-2 ukuze uyilondoloze ukuze ugweme ukomiswa kwesibili okungadingekile ukuvimbela ukuwa kwenduku yokushisela.
2) Ukugqwala kwamafutha namanzi endaweni yokushisela kudingeka kuhlanzwe kahle
Ukulawulwa kwenqubo yokushisela
1) Ukukhetha kwamanje: Bheka ku-I=(25-40)*DD ububanzi be-electrode
2) Zama ukunciphisa ukushisela kwe-arc
3) Ukushwibeka kwenduku yokushisela akufanele kube banzi kakhulu, ngokuvamile kungakapheli izikhathi ezi-3 ububanzi be-electrode.
4) Ijubane lokushisela akufanele liphuze kakhulu ukuvimbela ukushisa ngokweqile kanye ne-slagging; Kodwa-ke, esimweni sokuqhekeka okulula, ungakhetha i-welding encane yamanje ehamba kancane
5) Ngenxa yezici zensimbi engagqwali ekushiseleni okuqondile, insimbi encibilikisiwe kulula ukugeleza, futhi ukukhetha okungcono kakhulu ukusebenzisa indlela ye-arc breaking welding.
I-6) Lapho i-welding ye-multi-layer (channel) i-welding, i-slag yokushisela kufanele ihlanzwe
I-7) Umgodi we-arc kufanele ugcwaliswe lapho i-arc ivaliwe
Imiyalo eyengeziwe
1) Uma usebenzisa ugesi we-AC, i-splash inkulu kakhulu, isikhumba kulula ukubomvu, ukujula kokungena akujulile, futhi kulula ukunamathela ebhodini, ngakho-ke kunconywa ukusebenzisa i-DC + welding.
I-2) Uma usebenzisa i-DC, ucingo oluphansi luxhunywe kangcono phakathi kwesiteshi futhi lulungiswe ukuvimbela ukuphambuka kwe-arc noma ukuphuka kwe-arc.
| Isigaba | Uhlobo lwesikhumba | Umkhiqizo | Izinga lokushisa | Isikhathi |
| insimbi engagqwali | Uhlobo lwe-Titanium calcium | 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 16, E317L-16, E318-16, E320-16, E347-16, E385-16, E410-16, E410NiMo-16, E2209-16, E2307-16, E2553-16, E2516, E2592,6-4 E2595-16 | 300-350 ℃ | 60 imiz |
| insimbi engagqwali | Uhlobo lwe-hydrogen oluphansi | 308,309,310,316,347,385,507,2209,2553,2593,2594,2595 | 300-350 ℃ | 60 imiz |
Isikhathi sokuthumela: Oct-13-2022