ivalve yensimbi engenasici luhlobo lwevalve eyenziwe ngezinto zetsimbi, ngenxa yokumelana nokugqwesa kwayo, amandla aphezulu obushushu kunye nokumelana ne-oxidation, esetyenziswa kakhulu kwi-petroleum, imichiza, isinyithi, ukwakhiwa kunye namanye amashishini. Eli phepha liza kuhlalutya ukukhethwa kwezinto eziphathekayo kunye neempawu zokusebenza kweevalve zensimbi ezingenasici.
Okokuqala, ukhetho lwezinto eziphathekayo
Izinto zeevalvu zensimbi ezingenasici ubukhulu becala ziyintsimbi ye-austenitic, intsimbi ye-ferritic kunye ne-austenitic ferritic duplex steel stainless.
1. I-Austenitic stainless steel: I-Austenitic stainless steel iqulethe i-chromium, i-nickel kunye nezinye izinto, ezinokumelana nokugqwesa okulungileyo kunye namandla aphezulu okushisa, afanelekele ukushisa okuphezulu, uxinzelelo oluphezulu kunye neemeko zeendaba ezinobungozi. Intsimbi eqhelekileyo ye-austenitic engenasici 304, 316 njalo njalo.
2. I-Ferritic steel stainless: i-ferritic insimbi engenasici iqulethe i-chromium, i-nickel, i-molybdenum kunye nezinye izinto, ezinamandla amakhulu, ukuxhathisa i-oxidation kunye nokumelana nokugqoka, okufanelekileyo kwiqondo lokushisa eliphezulu, uxinzelelo oluphezulu kunye neemeko eziphakathi kwe-oxidizing. Intsimbi eqhelekileyo ye-ferritic engenasici 410, 420 njalo njalo.
3. Austenitic ferritic duplex steel stainless: Austenitic ferritic duplex steel stainless inezigaba ezibini ze-austenitic kunye ne-ferritic, edibanisa ukuxhatshazwa kwe-corrosion ye-austenitic stainless steel kunye namandla aphezulu e-ferritic stainless steel, kwaye ifanelekile kwiimeko zokusebenza ezinzima. I-duplex eqhelekileyo insimbi engenasici 2205, 2507 njalo njalo.
Okwesibini, iimpawu zokusebenza
Iimpawu zokusebenza kweevalve zensimbi ezingenasici zibonakaliswa ikakhulu kule miba ilandelayo:
1. Ukumelana nokugqwesa okugqwesileyo: iivalve zensimbi ezingenasici zinokumelana ne-corrosion egqwesileyo kwaye zinokuxhathisa ukubola kweentlobo ezahlukeneyo zeendaba, ukunciphisa iindleko zokugcinwa kwezixhobo kunye nokutshintshwa.
2. Amandla okushisa aphezulu: i-valve yensimbi engenasici inamandla okushisa aphezulu, inokugcina iimpawu ezintle zomatshini kwindawo yokushisa ephezulu, ifanele ukushisa okuphezulu, iimeko zokusebenza zoxinzelelo oluphezulu.
3. Ukuxhatshazwa kwe-oxidation: i-valve yensimbi engenasici inokumelana ne-oxidation efanelekileyo, enokuthi ixhathise i-corrosion ye-oxidizing media kunye nokuphucula ubomi benkonzo yevalve.
4. Ukuxhatshazwa kokugqoka: I-valve yensimbi engenasici inokumelana nokunxiba kakuhle, okunokunciphisa ukunxiba kwevalve ngexesha lokusetyenziswa kunye nokunciphisa iindleko zokugcinwa kwezixhobo kunye nokutshintshwa.
5. Ukusebenza kakuhle kokutywinwa: i-valve yensimbi engenasici ithatha isakhiwo sokutywina esiphezulu, inomsebenzi wokutywina kakuhle, inciphisa umngcipheko wokuvuza, kwaye iqinisekisa ukhuseleko kunye nokuthembeka kwezixhobo zokusebenza.
Isishwankathelo, i-valve yensimbi engenasici ekukhethweni kwezinto eziphathekayo, ngokukodwa ngokuhambelana neemeko zokusebenza ukukhetha i-austenitic stainless steel efanelekileyo, i-ferritic stainless steel okanye i-austenitic ferritic duplex stainless steel. Ngokubhekiselele kwiimpawu zokusebenza zeevalvu zensimbi engenasici, zinokumelana nokugqwesa okugqwesileyo, amandla obushushu obuphezulu, ukuxhathisa kwe-oxidation, ukuxhathisa ukunxiba kunye nokusebenza kakuhle kokutywinwa, kwaye zisetyenziswa ngokubanzi kwiinkalo ezahlukeneyo zoshishino.
Ixesha lokuposa: Sep-08-2023
