Izincedisi zomenzi wempompo ezinodaka : Ukukhetha impompo kufuneka kuthathelwe ingqalelo kwintoni ? Ukuxhathisa kwi-corrosion ye-Crrosion ngamahlwempu ukuya kwindlela efanelekileyo : I-12% ye-Cr steels <17% ye-Cr steel I-Stress corrosion I-corrosion ye-stress ibhekisela kwi-corrosion yendawo kunye ne-corrosion phantsi koxinzelelo olubangelwa ukusebenzisana kokusingqongileyo. Iintsimbi ze-Austenitic CrNi zithandwa kakhulu kuxinzelelo lwe-corrosion kwi-Cl medium. Ngomxholo we-Cl, ubushushu kunye noxinzelelo luthandeka ngakumbi kuxinzelelo lwe-corrosion. Ngokubanzi Oku kulandelayo 70 ~ 80 ℃ ngaphandle koxinzelelo lwe-corrosion umenzi wempompo eludaka. Amanyathelo okuthintela umhlwa woxinzelelo uphezulu isiqulatho se-Ni (Ni> 25% ~ 30%) Cr ˉ Ni intsimbi yomlomo we-austenitic Insimbi engenastainless umenzi wempompo eludaka.
Umhlwa nokunxiba Kubhekiselele kulwelo olunesantya esiphezulu kukhukuliseko lwesinyithi kumphezulu. Ngokungafaniyo nokhukuliseko lwe-abrasive fluid kunye nokuguga okubangelwa yi-medium iqulethe. Izixhobo ezahlukeneyo zine-corrosion eyahlukileyo kwaye ziyakwazi ukuguga. Ukuchaswa kwe-abrasion kwi-corrosion ngumahluko phakathi kokujika okulungileyo: i-ferritic austenitic - i-ferritic steel < i-austenitic steels .
I-Cavitation corrosion I-Cavitation yenzeke xa ipompo ibizwa ngokuba yi-cavitation erosion ebangelwa yi-corrosion. Ukuthintela ukubola kwe-cavitation yeyona ndlela isebenzayo kunye nelula yi-cavitation. Ukwenzeka rhoqo xa usebenzisa i-cavitation yempompo, ukuze ugweme ukubola kwe-cavitation, izixhobo ezixhathisa i-cavitation zingasetyenziswa,umenzi wempompo enodakaigolide, i-phosphor ubhedu, insimbi engenasici, i-12% yentsimbi ye-chromium. Enyanisweni, umonakalo we-corrosion udla ngokuba ngumphumo odibeneyo weentlobo ezahlukeneyo ze-corrosion , ukudibanisa ukhetho lokudibanisa. Okwesibini, izinto zetsimbi zempompo kunye neendlela zokukhetha 1 Izinto .`
Zininzi impompo yemathiriyeli. Izinto eziqhelekileyo zetsimbi ziyintsimbi, intsimbi ephosiweyo, i-12% ye-chromium steels, i-austenitic stainless steel 316L i-aluminium engenasici njalo njalo. Ukongeza kukho imathiriyeli yentsimbi ephoswe ngesilicon ephezulu kumajelo eendaba ezonakalisayo, № Re ⒍ st, Monel , B, Hastelloy C, 904, CD4MCu, titanium, titanium alloy.
Ukubunjwa kweekhemikhali eziqhelekileyo zezinto ze-alloy yimpompo eqhelekileyo kunye nezinto ezincedisayo ezingezizo zetsimbi: I-Teflon, i-rubber ye-nitrile, i-rubber ye-chloroprene, i-rubber ye-fluorine, i-rubber yokwenziwa, ukongeza i-FFKM, i-graphite, i-fiber yeglasi egcwele i-PTFE kunye nokunye okunjalo.
Ixesha lokuposa: Jul-13-2021