Saniyalan (Dumuni suguya) min bɛ kɛ ni nɛgɛ ye, o bɛ kɛ ka caya baara caman na ani baarakɛyɔrɔ caman na i n’a fɔ furaw, wideyow, biyɛri, ji min, biologiki, kemikɛli, fiɲɛ saniya, awiyɔn nukiliya izini ani jamana sɔrɔko jɔli wɛrɛw. A ka ca a la, fɛnw bɛ don jamana kɔnɔ san o san.
1. Inox surface sɛgɛsɛgɛli .
AES fɛɛrɛ ni SPS fɛɛrɛ fila bɛɛ bɛ se ka kɛ ka nɛgɛ intansi sanfɛla sɛgɛsɛgɛ walasa ka nɛgɛ kɔnɔna ni kɛnɛma yɔrɔw nɔgɔli seko dɔn. AES ye sɛgɛsɛgɛli cɛmancɛ min Bɔ, o ka dɔgɔ kosɛbɛ, o bɛ Se ka Kɛ 20nm ye. A baara fɔlɔ ye ka fɛnw dɔn. XPS fɛɛrɛ nafa jateminɛlen bɛ 10μm ɲɔgɔn Bɔ, o min bɛ Kɛ kosɛbɛ ka fɛnw ka kemikaliya cogoya Sɔrɔ a sanfɛla kɛrɛfɛ.
Scanning the mechanically poliged surface of 316 inox min kɛra fiɲɛ na ni AES ni XPS detectors ye, o b’a jira ko sɛgɛsɛgɛli jugumanba min bɛ kɛ ni nɛgɛ ye min tɛ sɔgɔ, o ye 15Nm ye, wa a bɛ kunnafoni di passivation layer cogoya n’a janya kan. A ka resistance resistance ani a ɲɔgɔnnaw.
Ka kɛɲɛ ni ɲɛfɔli ye, austenitic inox chromium ni nickel bɛ sɔrɔ, wa dɔw bɛ sɔrɔ molibdɛni, titanium, a ɲɔgɔnnaw na, a ka ca a la, 10,5% walima ka tɛmɛ o kan, a bɛ se ka kɛ ko a bɛ se ka sɔgɔsɔgɔ ka ɲɛ. Nɔgɔ bɛ se ka kɛ sababu ye ka chromium-rich passivation layer ka lakanani jogo sɔrɔ. A ka c’a la, passivation (passivation) bɛ kɛ 3-5nm ye, walima a bɛ bɛn 15 atomu ma. Passivation layer (passivation layer) bɛ Sɔrɔ oxydation-reduction (oxydation-reduction) kɛcogo la min na chrome (kɔrɔmu) ni nɛgɛ bɛ oksidan Kɛ. Ni passivation layer tiɲɛna, passivation layer kura bɛna kɛ joona ani elektrɔniki sɔgɔli bɛna kɛ o yɔrɔnin bɛɛ, ani seep spots of stainless steel bɛna bɔ kɛnɛ kan. Nɔgɔ ni ɲɔgɔn cɛ sɔgɔli. Passivation corrosion resistance bɛ tali kɛ kemikɛlifɛnw kɔnɔfɛnw na minnu bɛ sɔrɔ nɛgɛ intanw na, i n’a fɔ chromium caman, nikɛri ani molibdɛni, a ɲɔgɔnnaw bɛ se ka dɔ fara passivation layer ka sirili fanga kan, ani ka passivation layer ka sɔgɔli fanga bonya ani ka baara kɛ n’a ye ni inox pipe kɔnɔna ye. Fluide medium bɛ tali kɛ ɲɔgɔn na.
2. Pipe inox surface surface surface .
(1) Passivation (passivation) layɛrɛ min bɛ nɛgɛ inox sanfɛ, o bɛ tiɲɛ nɔgɔya la CI-container (ci-yɔrɔ) kɔnɔ, bawo CI-Oxydation (Oksidan) seko ka bon kosɛbɛ. Ni passivation layer bɛ nɛgɛ dɔrɔn de kan, sɛbɛn min sɛbɛnnen bɛ, o bɛna to ka sɔgɔ. A ka c’a la, passivation (passivation) layɛrɛ bɛ tiɲɛ dɔrɔn nɛgɛ sanfɛla yɔrɔ dɔ la. Nɔgɔya nɔ ye ka dingɛ misɛnninw walima dingɛw dilan. Kɔlɔn misɛnnin minnu bɛ tila-tila k’u kɛ fɛn ye, olu bɛ wele ko pitting corrosion. Pitting corrosion rate bɛ bonya ni funteni bɛ ka caya ani ka bonya ni a hakɛ bɛ caya. O fura ye ka baara kɛ ni ultra-low walima low-carbone inox ye (i n’a fɔ 316L walima 304L) .
(2) Wari min bɛ kɛ ni fɛn ye min tɛ kɛ ni nɛgɛ ye, o bɛ tiɲɛ nɔgɔya la a dilanni ni a sɔgɔli waati la. Ni funteni hakɛ ni funteni teliya bɛ kɛ fɛn dilanni ni a sɔgɔli waati la, o bɛ kɛ nɛgɛ ye min tɛ sɔgɔ (425-815°C ɲɔgɔn), karɔbɔli min bɛ kɛ ni fɛn ye min bɛ kɛ ka caya, o bɛna fɔlɔ ka jigin suman dancɛ la, ka fara ɲɔgɔn kan ni chromium karɔti ye ani ka chromium sɔrɔ. O de kosɔn, suman dancɛ kɔrɔma hakɛ bɛ dɔgɔya ka taa a fɛ ni chromium carbide (karɔti) sanjibɔli ye min bɛ to sen na, o bɛ kɛ yɔrɔ ye min bɛ wele ko chromium-depleted zone (yɔrɔ min bɛ dɔgɔya ni chromium) ye, o min bɛ fanga fanga dɔgɔya ani ka passivation layer (passivation layini) ka sɔgɔli fanga dɔgɔya. Ni a bɛ maga fɛnw na minnu bɛ kɛ ka fɛnw sɔgɔ i n’a fɔ ci- medium kɔnɔ, o bɛna kɛ sababu ye ka micro-current corrosion sɔrɔ. Hali ni nɔgɔ bɛ sumanw sanfɛ dɔrɔn, a bɛ don teliya la kɔnɔna na ka kɛ nɔgɔ ye min bɛ kɛ ɲɔgɔn fɛ. Kɛrɛnkɛrɛnnenya la, nɛgɛ min tɛ sɔgɔ, o bɛ ye ka ɲɛ welding furakɛli yɔrɔ la.
(3) Stress Corrosion Cracking: O ye degun jɔlenw ni nɔgɔw faralen ye ɲɔgɔn kan, o de bɛ kɛ sababu ye ka kariw ni nɛgɛw tiɲɛ. Lamini min bɛ kɛ ka degunw tiɲɛ, a ka c’a la, o ka gɛlɛn kosɛbɛ. A tɛ kɛ dɔrɔn tensile degun na, nka o degun ni degun tolen faralen ɲɔgɔn kan nɛgɛ la ka da a dilanni kan, a sɔgɔli, walima a funteni furakɛli.
3. Saniyako min bɛ kɛ ni nɛgɛ ye, o dilanni taabolo .
Uncoiling-deburring-forming-welding-welding (gazi lakanani kɛsu)-inner leveling-welding seam grinding-pipe saniya-bright annealing-fine sizing-cutting
A ka ɲi ka baara kɛ ni precision inox saniyatariji pipe bɔli sira ye min ye . Hangao Tech (Seko masinw) . Ikomi nɛgɛbere bɛ kɛ ka ɲɛsin welding ma a dilanni kɔfɛ, pibiliki muɲuni ni a sɔgɔli bɛ se ka kunbɛn ka ɲɛ, wa ja nɛnɛman kɛcogo bɛ se ka bɔ yen.
Minɛnba damadɔ bɛ sɔrɔ a dilanni na:
(1) Kɔnɔna nivoya minɛnw : A bɛ se ka digi siɲɛ caman ka taa ɲɛfɛ ka tɛmɛ rollo ni mandɛrɛ min bɛ a kɔnɔ walasa ka welding seam janya tɔ kɛ flakɛ, walasa welding seam ni basigifɛn ka ɲɔgɔn sɔrɔ ka ɲɛ ani ka wuli ka bɔ ɲɔgɔn na, o bɛ kɛ sababu ye ka kɔnɔbara kɔnɔna kogo nɔgɔya ani ka pipeline tolenw dɔgɔya a kɔnɔ. Kɔnɔna polisi ni kɛnɛma polisi waati la, a bɛ se ka dɔ bɔ fana polisi hakɛ ni a fanga la ani ka dɔ bɔ bɔnɛ na.
(2) Gazi min bɛ mɔgɔ tanga, o bɛ kɛ ni fɛn ye min bɛ mɔgɔ tanga: A bɛ kɛ yɔrɔ fila ye, annealing foro farikolo jɛlen ani ji jakite nɛnɛman.
Bright Annealing Furnace Body: A kunba ye yɔrɔ ye min bɛ lamini . Induction heating furnace , min bɛ sumaya fɛɛrɛ ta ka ɲɛsin induction chauffage coils ma, walasa pipe dakun bɛɛ ka se ka sumaya fan bɛɛ fɛ. Gazi min bɛ mɔgɔ tanga, o tɛ kɛ fiɲɛ dɔrɔn ye dɔrɔn, nka a bɛ kɛ fana fiɲɛ ye min bɛ lamini. Compact structure, baarakɛcogo lakananen, control dannamɔgɔ ani ladonni nɔgɔman. Funteni danfara min bɛ foro in na, o bɛ Kɔrɔsi ±1-2°C kɔnɔ.
Dilanbagaw bɛ se k’a sugandi ka baara kɛ ni amoniyɔmu tiɲɛni minɛnw ye walasa ka gazi lakana walima ka gazi bidon kɛ ka kɛɲɛ n’u cogoya yɛrɛ ye.
Aw ni ce ka ɲininkali kɛ an na!
Iris Liang .
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