Sisan, fɛɛrɛba fila bɛ yen minnu bɛ se ka pikiri kɛ lakanani yɔrɔ la: kelen ye ka lakana fiɲɛ fiyɛ kɛrɛfɛla la, tɔ kelen ye lakana lafiya lafiya ye.
Fiɲɛbɔ fɛɛrɛ fila ninnu sugandicogo ka kan ka jateminɛ cogo caman na. A ka ca a la, a ka ɲi ka baara kɛ ni kɛrɛfɛ fiyɛli ye.
Sariyasen min ye ka fiɲɛ bilali fɛɛrɛ sugandi .
Fɛn fɔlɔ min ka kan ka jɛya, o ye ko welda min bɛ Weele ko 'oxydée' o ye daɲɛ ye min faamuyali ka nɔgɔn dɔrɔn. Teori la, fɛn dɔw bɛ welda kɔnɔ ani fiɲɛ kɔnɔfɛn minnu bɛ kɛ ni kemikɛli ye walasa ka welda cogoya tiɲɛ. A ka ca a la, o ye ko welda ka nɛgɛmafɛn minnu bɛ baara kɛ kosɛbɛ, olu bɛ baara kɛ ni oksizɛni, azote ani idɔrɔzi ye fiɲɛ na funteni dɔ la.
Walasa ka welda bali ka 'oxydée' ye ka o ɲɔgɔnna baarakɛtaw dɔgɔya walima ka u bali ka ɲɔgɔn sɔrɔ nɛgɛ yɔrɔw la welda la funteni caman na. I n’a fɔ an bɛɛ b’a dɔn cogo min na, funteni caman bɛ se ka kɛ sababu ye ka molekiyɔmuw ka baara kɛ ka ɲɛ. O funteni-yɔrɔ-ko in tɛ dɔrɔn pooli nɛgɛ mɔlen ye, nka a bɛ waati bɛɛ fana Dòn a la k’a Tà waati min na nɛgɛ welda bɛ wuli ka Taa waati min na nɛgɛ mɔlen nɛgɛ bɛ Sɔ̀rɔ k’a funteni Dɔgɔya fo ka Se funteni hakɛ dɔ ma.
Misali la, ni titaniyɔmu (titanium) sɔgɔlan bɛ welding (titaniyɔmu) la, ni funteni sera 300°C ma walima ka tɛmɛ o kan, titanium alloy (titaniyɔmu) bɛ se ka hidrɔzɛni minɛ joona fiɲɛ na; Ni a bɛ 450°C sanfɛ, a bɛna oksizɛni minɛ joona fiɲɛ na; Ni a sera 600°C ma walima ka tɛmɛ o kan, a bɛ se ka fiɲɛ sama joona azote kɔnɔ. O la, titanium alloy welds solidifié kɔfɛ ani funteni bɛ dɔgɔya ka se 300 °C ma a dɔgɔyalenba la, u ka kan ka lakana kosɛbɛ walasa ka fiɲɛ gɛlɛn bɔ ɲɔgɔn na ka bɔ weldaw la, n'o tɛ weldaw bɛna 'oxydize.' a bɛ se ka nɔ bila hali hakɛ la molten pool ni base metal cɛ.
Walasa ka welda cogoya sabati ka ɲɛ waati min na welda bɛ nɛnɛ fo ka se funteni kɛrɛnkɛrɛnnen dɔ ma , Hangao Tech (Seko Machinery) ye fɛn kura dɔ fara a kan min bɛ lakana yɔrɔ dɔ fara a kan . 1000 , minnu bɛ se ka kɛ ka fɛnw dilan minnu bɛ se ka kɛ ka fɛnw sɔgɔ . Ni welding fitinɛ bɛ baara la, lakana yɔrɔ dɔ bɛ pikiri kɛ a yɛrɛma ka don kɛsu kɔnɔ walasa ka a hakɛ dɔ mara jibɔ hakɛ dɔ la walasa ka se ka fiɲɛ bɔli kun sɔrɔ. A bɛ se ka kɛ ko a janya bɛ se santimɛtiri 30 ɲɔgɔn ma, o fana bɛ fara a kan walasa ka funteni tolen bali ka welda kɛ oksidan ye.
Ka bɔ ɲɛfɔli la min fɔra sanfɛ, an bɛ se k’a dɔn ko lakanani yɔrɔ pikiri tɛ kɛ dɔrɔn ka welda ka jidaga lakana, nka a bɛ yɔrɔ lakana fana min ma sabati welding bannen kɔfɛ, o la u fanba bɛna baara kɛ ni kɛrɛfɛ-fiɲɛ ye min bɛ kɛ kɛrɛfɛ. Komin ni i ye a suma ni coaxial protection method ye, nin fɛɛrɛ in bɛ ni lakanani hakɛ ye min ka bon, kɛrɛnkɛrɛnnenya la, welda ye solidifié yɔrɔ min na sisan.
Nka, ka ɲɛsin ɛntɛrinɛti baarakɛcogo ma, fɛn bɛɛ tɛ se ka welda ni kɛrɛfɛ-fiɲɛ ye min bɛ fiɲɛ bila. Fɛn kɛrɛnkɛrɛnnen dɔw la, gazi lakanani fiɲɛbɔli fɛɛrɛ dɔrɔn de bɛ se ka kɛ, wa fɛn dilannenw jɔcogo jɛlen ka kan ka sugandi cogo laɲininen na.
Sugandili kɛ kɛrɛnkɛrɛnnenya la lakana fiɲɛ fiyɛcogo .
1) welda tilennen .
Ni fura in ka welda cogoya tilennen don, a bɛ se ka kɛ butt joint ye, lap joint, interne corner joint walima overlap weld joint. Nin fura suguya in bɛnnen don kosɛbɛ ka baara kɛ ni kɛrɛfɛ-fiɲɛbɔlan ye.
2) Avion dagalen graphique weld .
Ni fura in welda cogoya bɛ cogoya dagalen jira i n’a fɔ sɛrɛkili fla, poligoni fla, ani polilini fla, ani a ye joli suguya ye i n’a fɔ butt joint, lap joint, ani welda joli min bɛ ɲɔgɔn kan. Nin fura suguya in bɛ gazi shielding fɛɛrɛ ta, wa welding effect bɛna fisaya.
Lakanali yɔrɔ suguya ani fɛnw dili fɛɛrɛ sugandili bɛ nɔ bila tigitigi welding bɔli ɲuman na, a kɛcogo ɲuman na ani a musaka la. Nka, ka jateminɛ kɛ welding fɛnw suguya caman na, baarakɛcogo yɛrɛ la, welding gazi suguyaw ni u lasecogo sugandili fana ka gɛlɛn, wa fɛn suguya caman ka kan ka jateminɛ ka ɲɛ, i n’a fɔ: fɛn dilannenw, sɔgɔli kɛcogo, sɔgɔli jɔyɔrɔ, ani sɔgɔli nɔ. A ka ɲi ka welding sɛgɛsɛgɛli kɛ fɔlɔ ani ka jiginni fɛɛrɛ bɛnnen sugandi ani ka gazi welding kɛ walasa ka welding sɔrɔta ɲuman sɔrɔ.
