I-anti-corrosion yeIvalve yeBhola yobheduumzimba usekelwe ikakhulu kukhetho oluchanekileyo lwemathiriyeli.Nangona kukho izinto ezininzi ezichasene ne-corrosion, akulula ukukhetha okulungileyo, kuba ingxaki ye-corrosion inzima kakhulu.Ngokomzekelo, i-asidi ye-sulfuric iyingozi kakhulu kwintsimbi xa i-concentration iphantsi, kwaye xa i-concentration iphezulu, insimbi iveliswa.Ifilimu yePassivation inokuthintela ukubola;I-hydrogen ibonisa kuphela ukudleka okuqinileyo kwintsimbi phantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu.Ukusebenza kwe-corrosion ye-chlorine ayinkulu xa ikwimeko eyomileyo, kodwa iyingozi kakhulu xa kukho umswakama othile, kwaye izinto ezininzi azikwazi ukusetyenziswa..Ubunzima ekukhetheni izixhobo zomzimba we-valve abukho kuphela ekuqwalaseleni imiba ye-corrosion, kodwa kunye nezinto ezinjengokumelana noxinzelelo kunye nokumelana nokushisa, nokuba kuqikelele ngokwezoqoqosho, nokuba kulula ukuyithenga.Ngoko kufuneka inikele ingqalelo.

Okwesibini kukuthabatha amanyathelo ombane, anjengelothe yelayini, ialuminiyam yokwaleka, iiplastiki zobunjineli belayini, irabha yendalo eyakhiweyo, neerabha ezahlukahlukeneyo zokwenziwa.Ukuba iimeko zemidiya ziyakuvumela, le yindlela yoqoqosho.

Kwakhona, kwimeko yoxinzelelo oluphantsi kunye nobushushu, ukusebenzisa i-non-metal njengesixhobo somzimba wevalve kunokusebenza kakhulu ekuthinteleni ukubola.

Ukongeza, umphezulu wangaphandle womzimba we-valve ubuye ugqweswe yi-atmosphere, kwaye ngokubanzi izinto zentsimbi zikhuselwe ngokupenda.

I-corrosion yevalve ngokuqhelekileyo iqondwa njengomonakalo kwizinto zetsimbi zevalve phantsi kwesenzo sekhemikhali okanye i-electrochemical environment.Ekubeni i-"corrosion" isenzeko senzeke kwintsebenziswano ezenzekelayo phakathi kwesinyithi kunye nendalo engqongileyo, indlela yokuhlukanisa isinyithi kwindawo ejikelezileyo okanye ukusebenzisa izinto ezingezona zentsimbi zokwenziwa kugxininiso lokuthintela ukubola.

Umzimba wevalve (kubandakanywa nebhonethi) yevalve ithatha uninzi lobunzima bevalvu kwaye isoloko idibana nesiphakathi.Ngoko ke, ukhetho lwevalve luhlala lusekelwe kwizinto eziphathekayo zevalve.

Umhlwa womzimba wevalvu awuyonto ingaphezulu kweendlela ezimbini, ezizezi, ukubola kweekhemikhali kunye ne-electrochemical corrosion.Izinga lokubola kwayo lixhomekeke kwiqondo lobushushu, uxinzelelo, iipropathi zekhemikhali zaphakathi kunye nokunganyangeki kwe-corrosion ye-valve yomzimba.Izinga lokutya lingohlulwa libe ngamanqanaba amathandathu:

1. Ukumelana nokugqwesa okupheleleyo: izinga lokubola lingaphantsi kwe-0.001 mm / ngonyaka;

2. Ukumelana kakhulu nokubola: izinga lokubola li-0.001 ukuya kwi-0.01 mm / ngonyaka;

3. Ukuxhatshazwa kwe-Corrosion: izinga lokubola li-0.01 ukuya kwi-0.1 mm / ngonyaka;

4. Ikwazi ukumelana nomhlwa: izinga lokutya li-0.1 ukuya kwi-1.0 mm/ngonyaka;

5. Ukunganyangeki kwe-corrosion: izinga lokubola li-1.0 ukuya kwi-10 mm / ngonyaka;

6. Ayixhathisi kwi-corrosion: izinga lokubola lingaphezulu kwe-10 mm / ngonyaka.