Igwe anaghị agba ncharaigwe ịgbado ọkụ ntupunwere ike mgbochi corrosion na mgbochi oxidation àgwà.Ejiri maka nchekwa igwe, ụlọ ọrụ, ọrụ ugbo, ihe owuwu, wdg. Igwe anaghị agba nchara waya ịgbado ọkụ ntupu nhọrọ nke elu mma igwe anaghị agba nchara waya, site na nkenke akpaka igwe ịgbado ọkụ, ngwaahịa net elu ire ụtọ, siri ike Ọdịdị, ike iguzosi ike n'ezi ihe, na ike corrosion eguzogide.
Nnwale ihe nitric acid nke igwe anaghị agba ncharaigwe ịgbado ọkụ ntupu.Otu ihe ama ama nke tubes igwe anaghị agba nchara bụ nguzogide corrosion ha na-enweta na nitric acid gbadoro anya na itughari.Ihe onwunwe a na-enye ohere ka ọ dị mfe iche na ọtụtụ ọla ma ọ bụ alloys ndị ọzọ.Otú ọ dị, nnukwu carbon 420 na 440 steels na-adị ntakịrị na-emebi emebi na ule nitric acid, na ọla ndị na-adịghị ferrous ga-emebi ozugbo mgbe ha zutere nitric acid.Ntughari nitric acid na-emebi emebi na nchara carbon.
Nnwale nke sulfuric acid immersion igwe anaghị agba nchara ntupu.A na-eji nnwale a mata ọdịiche dị n'etiti 302 na 304 na 316 na 317. Mbelata ọnụ nke ihe nlele ahụ bụ ala dị mma wee tinye ya na nitric acid na ntinye olu nke 20-30% na okpomọkụ nke 60-66.℃maka ịsacha na passivation maka ọkara otu awa.Ihe mgbaze ule sulfuric acid nwere oke olu nke 10% na-ekpo ọkụ ruo 71℃.Mgbe 302 na 304 bu ụzọ banye ngwọta a, a na-emebi ha ngwa ngwa ma mepụta ihe nlele nwere ihe ndị ama ama maka ntụnyere dị ka.N'ụzọ dị otú a, nnwale ahụ nwere ike ịbụ nke ziri ezi karị.
Ọla kọpa sulfate ntụpọ ule maka igwe anaghị agba ncharaigwe ịgbado ọkụ ntupu.Nnwale ntụpọ sulfate ọla kọpa bụ ụzọ kachasị mfe na nke dabara adaba ngwa ngwa iji mata ọdịiche nke nchara carbon nkịtị na ụdị igwe anaghị agba nchara.Ntinye nke ngwọta sulfate ọla kọpa ejiri mee ihe bụ 5 ~ 10%.Tupu ule nyocha ahụ, a ga-ehichapụ ebe ule ahụ nke ọma site na griiz ma ọ bụ adịghị ọcha dị iche iche, a ga-ejikwa obere ihe na-ehicha ya na akwa dị nro, mgbe ahụ, a ga-eji karama dobe tinye ihe ngwọta sulfate ọla kọpa n'ime ebe a kpochara.Carbon steel ma ọ bụ ígwè nkịtị na-etolite akwa ọla kọpa n'ime ihe dị ka sekọnd, ebe elu igwe anaghị edebe ọla kọpa ma ọ bụ gosi agba ọla kọpa.
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Oge nzipu: 27-05-21