Ne ehiã be adzɔnuwo wɔlawo nawɔe be pɔmpiwo ƒe nyonyome nanyo ɖe edzi la, ekema intergranular corrosion nye kuxi si dzi woaɖu le pɔmpiwo wɔwɔ ƒe ɖoɖoa me.
Míakpɔ nu gbegblẽ ƒomevi aɖe si womate ŋu akpɔ o si woyɔna be Intergranular Corrosion (IGC) nyuie be míase alesi intergranular corrosion dzɔnae kple alesi míade dzesi nusiwo gblẽ le wo ŋu ahaɖe wo dzi akpɔtɔ gɔme.
Nukae nye intergranular corrosion) .
Le Nuwo Ŋuti Nunya me la, intergranular corrosion (IGC), si woyɔna hã be intergranular attack (IGA), nye xɔxlɔ̃ ƒomevi aɖe si me nusiwo wotsɔ wɔa kristaloe ƒe liƒowo te ŋu xɔna bɔbɔe wu woƒe ememe. Intergranular corrosion (si woyɔna be weld decay) kpɔa ŋusẽ ɖe gakpo si mexɔ dzo o dzi le xɔtuɖoɖo ƒe ɖoɖo nu eye ɖewohĩ maɖe nugbegblẽ ƒe dzesi siwo woate ŋu akpɔ afia o vaseɖe esime xɔxlɔ̃ nayi edzi ŋutɔ.
Nukatae intergranular corrosion dzɔna .
Kpuie ko la, wotsɔa pɔmpiwo ƒe ƒoƒo, dzoxɔxɔ ƒe dɔwɔwɔ nyuie, kple wo ɖeɖe ɖe go si ade Celsius 425 va ɖo 870 me la dzea egɔme tsoa lãkusiwo dome ƒe xɔxlɔ̃ me.
Ne ga si le dzoxɔxɔ si le dometsotso sia me la, etrɔna le xɔtuɖoɖo ƒe ɖoɖo nu. chromium si le akɔbli la me wɔa dɔ kple carbon tsɔ wɔa chromium carbide le nuku ƒe liƒo gbɔ. Carbide ƒe wɔwɔme sia trɔa liƒoa wòzua anode lãmenugbagbeviwo koŋ. kristalo ƒe akpa aɖewo le cathode lãmenugbagbeviwo me, eye corrosion dzea egɔme.
Mɔnu siwo woatsɔ aɖe intergranular corrosion dzi akpɔtɔ)
Zi geɖe la, dzoxɔxɔ ƒe dɔwɔwɔ ate ŋu akpɔ kuxia gbɔ, si ana ga si wotsɔ wɔe la nagatrɔ ava afisi gogo nɔnɔme gbãtɔa.
Annealing alo quenching nye mɔnu nyui aɖe si dzi woato atrɔ nusiwo gblẽ le austenitic gakpo si mexɔ dzo o ŋu.
Dɔwɔwɔ sia na ga la do dzo ɖe 1060 ° C kple 1120 ° C. Ne wodo dzoe ko la, wodoa dzo na gakpo si mexɔ dzo o la, wofana kabakaba be wòana nukua kple eƒe wɔwɔme nasẽ. Zi geɖe la, wozãa annealing sia le mɔ̃ɖaŋudɔwɔƒe si wotsɔa ga ƒoa nui ƒe pɔmpiwo wɔwɔ deŋgɔ me.
Eyata aleke míewɔ va ɖo afima?
On-line fixing & fusing (anealing) dɔwɔnuwo ate ŋu ado dzo gakpo si mexɔ dzo o welded pipeto 1050°C emegbe fa ɖe dzoxɔxɔ si le anyime wu 100 °C le hydrogen ƒe takpɔkpɔ te.The dzoxɔxɔ ŋusẽ supply of the intermediate ferquency induction is the self functional.With the self difficitings. Energy-saving and low-waste features.The vevietɔ la, inducer si wowɔ le gakpo si mexɔ dzo o ƒe nɔnɔmewo nu la ate ŋu akpɔ ŋusẽ 15%-20% le vovototo me le nu bubu siwo le hatsotso ma ke me ŋu.Azã hydrongen abe gas ene le miniti ɖesiaɖe me.
Ne èdi be yeanya nu geɖe la, Pleasr te ɖe afisia ŋu: Elektrikŋusẽ-ŋusẽ-ga si mexɔ dzo o ƒe ʋuƒo si le keklẽm
