1. Iasidi ye-Sulfuric Njengomnye wemithombo yeendaba eyomeleleyo, i-asidi ye-sulfuric yinto ebalulekileyo ye-industrial ekrwada enoluhlu olubanzi kakhulu lokusetyenziswa.Ukubola kwe-asidi ye-sulfuric kunye nemilinganiselo eyahlukeneyo kunye namaqondo obushushu ahluke kakhulu.I-asidi yesulfuric egxininisiweyo ene-concentration engaphezu kwe-80% kunye nobushushu obungaphantsi kwe-80 ℃, i-carbon steel kunye nentsimbi etyhidiweyo inokumelana ne-corrosion, kodwa ayifanelekanga kwi-asidi ye-sulfuric ehamba ngesantya esiphezulu.Ayifanelekanga ukuba isetyenziswe njengesixhobo seevalve zempompo;iintsimbi eziqhelekileyo ezingenasici ezifana ne-304 (0Cr18Ni9) kunye ne-316 (0Cr18Ni12Mo2Ti) zinokusetyenziswa okulinganiselweyo kwimidiya ye-sulfuric acid.Ngoko ke, iivalve zempompo zokuthutha i-asidi ye-sulfuric zihlala zenziwe nge-high-silicon cast iron (enzima ukuyiphosa kunye nenkqubo) kunye ne-alloy high-alloy steel stainless (alloy 20).I-Fluoroplastics inokuchasana okungcono kwi-asidi ye-sulfuric, kwaye i-valve ene-fluorine-lined valves zikhetho lwezoqoqosho.
2. I-acetic acid yenye yezona zinto zidla kakhulu kwi-organic acids.Intsimbi eqhelekileyo iya kuba ne-corrod kakhulu kwi-acetic acid kuzo zonke iindawo kunye namaqondo okushisa.Intsimbi engatyiwayo yeyona nto ibalaseleyo ekwaziyo ukumelana ne-acetic acid.I-316 insimbi engenasici equlethe i-molybdenum nayo ifanelekile kubushushu obuphezulu kunye nokunciphisa umphunga we-acetic acid.Ngeemfuno ezifunwayo ezifana nobushushu obuphezulu kunye noxinzelelo oluphezulu lwe-acetic acid okanye eziqulethe ezinye izinto ezidliwayo, iivalve zensimbi ezingenasici okanye i-fluoroplastic valves zingakhethwa.
3. I-Hydrochloric acid Uninzi lwezixhobo zetsimbi azichasananga ne-hydrochloric acid corrosion (kubandakanywa nezixhobo ezahlukeneyo zensimbi ezingenasici), kunye ne-silicon ephezulu ye-ferro-molybdenum ingasetyenziselwa kuphela kwi-hydrochloric acid ngaphantsi kwe-50 ° C kunye ne-30%.Ngokuchasene nezixhobo zetsimbi, izinto ezininzi ezingezizo zetsimbi zinokumelana ne-corrosion efanelekileyo kwi-hydrochloric acid, ngoko ke iivalve zerabha kunye neevalvu zeplastiki (ezifana ne-polypropylene, i-fluoroplastics, njl.) yeyona nto ingcono kakhulu yokuthutha i-hydrochloric acid.
4. Iasidi ye-nitric.Uninzi lwesinyithi ludla ngokukhawuleza kwi-nitric acid.Intsimbi engatyiwa yeyona nto isetyenziswa kakhulu kwinitric acid resistant.Inokumelana ne-corrosion elungileyo kuzo zonke izigxina ze-nitric acid kwiqondo lobushushu begumbi.Kuyafaneleka ukukhankanya ukuba insimbi engenasici equkethe i-molybdenum (efana ne-Corrosion resistance ye-316, i-316L) kwi-asidi ye-nitric ayikho nje ngaphantsi kwentsimbi eqhelekileyo (njenge-304, i-321), kwaye ngamanye amaxesha ingaphantsi.Kubushushu obuphezulu be-nitric acid, i-titanium kunye ne-titanium alloy materials zidla ngokusetyenziswa.
Ixesha lokuposa: Sep-26-2021