1. I-Sulfuric acid Njengomunye wemithombo yezindaba edlayo enamandla, i-sulfuric acid iyimpahla ebalulekile yezimboni enokusetshenziswa okubanzi kakhulu. Ukugqwala kwe-sulfuric acid enezingxube namazinga okushisa ahlukene kuhluke kakhulu. Ku-asidi ye-sulfuric egxilile ene-concentration engaphezu kuka-80% kanye nezinga lokushisa elingaphansi kuka-80℃, i-carbon steel ne-cast iron inokumelana nokugqwala okuhle, kodwa ayilungele i-sulfuric acid egeleza ngesivinini esiphezulu. Ayifanele ukusetshenziswa njengempahla yama-valve epompo; izinsimbi ezingenasici ezijwayelekile ezifana ne-304 (0Cr18Ni9) kanye ne-316 (0Cr18Ni12Mo2Ti) zinokusetshenziswa okulinganiselwe kwemidiya ye-sulfuric acid. Ngakho-ke, ama-valve epompo okuthutha i-sulfuric acid ngokuvamile ayenziwe nge-high-silicon cast iron (okunzima ukuphonsa nokucubungula) kanye nensimbi engagqwali ephezulu (i-alloy 20). I-Fluoroplastics inokumelana kangcono ne-sulfuric acid, futhi ama-valve ane-fluorine-lined ayisinqumo esinomnotho.
2. I-acetic acid ingenye yezinto ezonakalisa kakhulu kuma-organic acid. Insimbi evamile izogqwala kakhulu ku-acetic acid kukho konke ukugxila namazinga okushisa. Insimbi engagqwali iyinto enhle kakhulu yokumelana ne-acetic acid. I-316 insimbi engagqwali equkethe i-molybdenum nayo ifanele izinga lokushisa eliphezulu kanye ne-Dilute acetic acid vapor. Ngezidingo ezinzima ezifana nezinga lokushisa eliphezulu kanye nokugcwala okuphezulu kwe-acetic acid noma okuqukethe enye imidiya egqwalayo, amavalvu ensimbi engagqwali ephezulu noma amavalvu e-fluoroplastic angakhethwa.
3. I-Hydrochloric acid Izinto eziningi zensimbi azimelani ne-hydrochloric acid corrosion (kuhlanganise nezinto ezihlukahlukene zensimbi engagqwali), futhi i-silicon ephezulu ye-ferro-molybdenum ingasetshenziswa kuphela ku-hydrochloric acid engaphansi kuka-50 ° C no-30%. Ngokuphambene nezinto zensimbi, izinto eziningi ezingezona ezensimbi zinokumelana nokugqwala okuhle kwe-hydrochloric acid, ngakho-ke ama-valve enjoloba nama-valve epulasitiki (njenge-polypropylene, i-fluoroplastics, njll.) yiyona ndlela engcono kakhulu yokuthutha i-hydrochloric acid.
4. I-nitric acid. Izinsimbi eziningi zigqwala ngokushesha ku-nitric acid. Insimbi engagqwali yiyona nto esetshenziswa kakhulu ukumelana ne-nitric acid. Inokumelana nokugqwala okuhle kukho konke ukugxila kwe-nitric acid ekamelweni lokushisa. Kuhle ukusho ukuthi insimbi engagqwali equkethe i-molybdenum (efana ne-The corrosion resistance of 316, 316L) kuya ku-nitric acid ayikho nje kuphela engaphansi kwensimbi engagqwali evamile (efana no-304, 321), futhi ngezinye izikhathi ngisho naphansi. Ukushisa okuphezulu kwe-nitric acid, i-titanium ne-titanium alloy materials ngokuvamile isetshenziswa.
Isikhathi sokuthumela: Sep-26-2021