Ndezvipi zvakanakira corrosion-resistant alloy zvigadzirwa
Corrosion-resistant alloys kazhinji haagone kushandiswa munzvimbo dzino corrosion ane simba rekudzikisira kana kuvharika kwepamusoro (anoxic nharaunda), uye kuita kwezvigadzirwa kunogara kuchivandudzwa, uye kuri kushandiswa zvakanyanya, uye kune vazhinji vanogadzira zvigadzirwa, maitiro ekuita. sarudza Mugadziri anoenderana newe isainzi.Kune rimwe divi, ruzivo runofanirwa kutariswa maererano nemutengo, uye zvimwe zvinhu zvinofanirwa kutariswa zvizere, sekuti mugadziri anodzorwa uye kana mushure mekutengesa sevhisi yakavimbiswa.
Corrosion Resistant Alloy
Ndeapi marudzi e-corrosion resistant alloys?
1. Kuora kwesimbi isina tsvina
Zvinonyanya kureva 300 yakajairwa simbi isina tsvina 304, 316L, 317L, etc. inopesana nekuora kwemhepo kana yegungwa;austenitic Stainless simbi 904L, 254SMO ine yakasimba corrosion resistance;duplex simbi 2205, 2507, nezvimwewo;corrosion-resistant alloys ane CU 20 alloy, nezvimwe.
2. Base corrosion-resistant alloy
Kunyanya Hastelloy alloy uye NI-CU alloy, etc. Sezvo simbi NI pachayo iine face-centered cubic structure, kugadzikana kwayo kwecrystallographic kunoita kuti ikwanise kugarisa mamwe maalloying elements pane FE, akadai seCR, MO, nezvimwewo, kuitira kuti iwane resistance Kugona kwenzvimbo dzakasiyana siyana;panguva imwecheteyo, nickel pachayo ine humwe hutano hwekudzivisa corrosion, kunyanya kukwanisa kurwisa kushungurudzika kwekuora kunokonzerwa ne chloride ions.Munzvimbo dzakasimba dzinodzikisira ngura, nharaunda dzakasanganiswa asidhi dzakasanganiswa, uye zvigadziriso zvine halogen ions, nickel-based corrosion-resistant alloys anomiririrwa neHastelloy ane mabhenefiti akakwana pamusoro pesimbi-based stainless steels.
3.Hastelloy ndeye nickel-molybdenum-chromium-iron-tungsten nickel-based alloy.Ndiyo imwe yemhando dzesimbi dzemazuva ano dzisingaite corrosion.Inonyanya kushingirira kune wet chlorine, akasiyana oxidizing chlorides, chloride munyu mhinduro, sulfuric acid uye oxidizing munyu, uye ine yakanaka corrosion kuramba mukupisa kwakadzika uye yepakati tembiricha hydrochloric acid.Naizvozvo, mumakumi matatu emakore adarika, yakashandiswa zvakanyanya munzvimbo dzinotyisa, senge indasitiri yemakemikari, petrochemical indasitiri, flue gasi desulfurization, pulp uye bepa, kuchengetedza kwezvakatipoteredza uye mamwe maindasitiri minda.Iwo akasiyana corrosion data yeHastelloy alloys akajairwa, asi haagone kushandiswa sekutsanangurwa, kunyanya munzvimbo dzisingazivikanwe, uye zvinhu zvinofanirwa kusarudzwa mushure mekuyedzwa.Iko hakuna kukwana Cr muHastelloy yekudzivisa corrosion munzvimbo dzakasimba oxidizing, senge inopisa concentrated nitric acid.Kugadzirwa kweiyi alloy kunonyanya kuitirwa makemikari process nharaunda, kunyanya pamberi peakasanganiswa asidhi, senge pombi yekuburitsa yeflue gas desulfurization system.
Nguva yekutumira: May-15-2023
