IZICELO:
Ilungele ukushiselwa kwezingcezu ezincanyana ze-cast iron welding kanye nezindawo zomshini, njengamakhanda angama-cylinder, amabhlogo enjini ensimbi ampunga abalulekile, amabhokisi egiya, kanye Nethuluzi Lomshini futhi maduze.
IZIMPAWU:
THZ308iwumgogodla we-nickel wokushisela, ukuncipha okuqinile kwenduku yensimbi yohlobo lwe-graphite.Ingasetshenziswa ngezinhloso ezimbili ze-AC ne-DC futhi kulula ukuyisebenzisa.Uma welding, akudingekile ukuthi i-weldment iqale ukushisa.Inokumelana nokuqhekeka okuhle kanye nokusebenza kahle.
IZIXWAYISO:
1. Ngaphambi kokushisela, ama-electrode adinga ukubhakwa ihora elingu-1 ngezinga lokushisa elingu-150±10℃ ngaphambi kokuwasebenzisa.
2 Ingaqeda ingcindezi yokushisela futhi igweme ukuqhekeka ngokushaya i-welding seam.
3. Ukuze kuncishiswe izakhi ezingcolile ku-weld yesisekelo sokungena kwensimbi, ububanzi obuncane be-white band, ukuthuthukisa ukumelana nokuqhekeka nokucubungula izakhiwo, kufanele kusebenzise ukushisela okuncane kwamanje ku-cast iron welding ebandayo.
Ukwakheka Kwekhemikhali kwensimbi ediphozithiwe(ingxenye enkulu):%
| Izinto | C | Si | Mn | S | Fe | Ni | Ubuningi bezinye izakhi |
| Inani elijwayelekile | ≤2.0 | ≤2.5 | ≤1.0 | ≤0.03 | ≤8.0 | ≥90 | ≤1.0 |
Ireferensi ye-Welding yamanje: (AC, DC+)
| Ububanzi be-Electrode(mm) | 2.5 | 3.2 | 4.0 |
| I-Welding current(A) | 60-90 | 90-110 | 120-150 |
Ukulungiswa kokuhlanekezela ukushisela:
Ukulungiswa kokushintshashintsha esimweni esishisayo, ukulungiswa komshini kanye nokubethelwa kwesando kunqatshelwe ngokuqinile ebangeni lokushisa eliluhlaza okwesibhakabhaka (300℃~500℃) ukugwema ukuqhekeka okuphukayo.
Naka lezi zidingo ezilandelayo uma ilangabi lishiswa endaweni
Akufanelekile ukuphinda ukushisa engxenyeni efanayo ukuze ugweme izinguquko esakhiweni se-metallographic kanye nezakhiwo zemishini yensimbi.
Ungabangeli ukulungiswa okuphindaphindiwe kwengcindezi nokucindezelwa engxenyeni efanayo.
Ezingxenyeni eziqinile ezishiselwe, ukuchelela nokupholisa ngokushesha akuvunyelwe ngokuphelele.
Izingxenye zokushisela ezidinga ukuhushulwa kufanele zilungiswe ngaphambi kokuhushulwa ukuze kuqedwe ingcindezi yangaphakathi ngesikhathi sokuhushula.Ngesikhathi se-annealing, izingxenye ezishiselwe kufanele zibekwe kancane ukuze zingaphinde ziguge.
Izinga lokushisa lokuqondisa ilangabi lingaba ngu-700℃~850℃ (fuchsia), futhi akufanele lidlule u-900℃ (elibomvu ngokukhanyayo) ngensimbi yesakhiwo sengxubevange ephansi.
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Okwedlule: I-Stainless Steel Welding Electrode AWS E316L-16(A022) Olandelayo: I-Z408 I-Nickel Pure Cast Iron Electrode AWS ENiFe-CI
