1. Sulfuric acid Dị ka otu n'ime mgbasa ozi na-emebi emebi siri ike, sulfuric acid bụ akụrụngwa akụrụngwa dị mkpa nke nwere ọtụtụ ihe eji eme ihe.Nrụrụ nke sulfuric acid nwere ọkwa dị iche iche na ọnọdụ okpomọkụ dị nnọọ iche.Maka sulfuric acid gbadoro anya nke nwere ntinye n'elu 80% na okpomọkụ na-erughị 80 ℃, carbon steel na ígwè nkedo nwere ezigbo nguzogide corrosion, mana ọ naghị adabara sulfuric acid na-agba ọsọ ọsọ.Ọ dịghị mma maka iji dị ka ihe maka mgbapụta valve;igwe anaghị agba nchara nkịtị dịka 304 (0Cr18Ni9) na 316 (0Cr18Ni12Mo2Ti) nwere obere ojiji maka mgbasa ozi sulfuric acid.Ya mere, valvụ mgbapụta maka ibufe sulfuric acid na-ejikarị nkedo nke silicon dị elu (ọ siri ike nkedo na nhazi) na akwa igwe anaghị agba nchara (alloy 20).Fluoroplastics nwere nguzogide dị mma na sulfuric acid, na valvụ ndị nwere fluorine bụ nhọrọ bara uru karị.
2. Acetic acid bụ otu n'ime ihe na-emebi emebi na organic acid.Nchara nkịtị ga-emebi nke ukwuu na acetic acid na mkpokọta na okpomọkụ niile.Igwe anaghị agba nchara bụ ihe kacha mma na-eguzogide acetic acid.316 igwe anaghị agba nchara nwere molybdenum dịkwa mma maka oke okpomọkụ na Dilute acetic acid vapor.Maka ihe ndị a na-achọsi ike dị ka okpomọkụ dị elu na nnukwu ntinye nke acetic acid ma ọ bụ nwere mgbasa ozi ndị ọzọ na-emebi emebi, enwere ike ịhọrọ valvụ igwe anaghị agba nchara ma ọ bụ valves fluoroplastic.
3. Hydrochloric acid Ọtụtụ ihe ígwè anaghị eguzogide hydrochloric acid corrosion (gụnyere ihe dị iche iche igwe anaghị agba nchara), na elu-silicon ferro-molybdenum nwere ike iji na hydrochloric acid n'okpuru 50 ° C na 30%.N'adịghị ka ihe ndị dị na ígwè, ihe ka ọtụtụ n'ime ihe ndị na-abụghị ígwè nwere ezigbo ihe mgbochi corrosion na hydrochloric acid, ya mere, roba valves na plastic valves (dị ka polypropylene, fluoroplastics, wdg) bụ nhọrọ kasị mma maka ibufe hydrochloric acid.
4. Nitric acid.Ọtụtụ ọla na-emebi ngwa ngwa na nitric acid.Igwe anaghị agba nchara bụ ihe a na-ejikarị nitric acid eme ihe.Ọ nwere ezigbo nguzogide corrosion na mkpokọta nitric acid na ụlọ okpomọkụ.Ọ bara uru ịkọwa na igwe anaghị agba nchara nwere molybdenum (dị ka Nguzogide corrosion nke 316, 316L) na nitric acid abụghị naanị ihe dị ala karịa igwe anaghị agba nchara (dị ka 304, 321), na mgbe ụfọdụ ọ dị ala.Maka nitric acid dị elu, a na-ejikarị ihe titanium na titanium alloy eme ihe.
Oge nzipu: Sep-26-2021