Ndizodziwika bwino kuti kuwonongeka kwachitsulo kumakhudza kwambiri moyo wa valve, kudalirika komanso moyo wautumiki.Zochita zamakina ndi zowonongeka pazitsulo zimawonjezera kwambiri kuvala konse kwa malo okhudzana.Chiwerengero chonse cha kuvala pa frictional pamwamba pa valavu pa ntchito.Panthawi yogwira ntchito ya valve, malo osakanikirana amavala ndikuwonongeka chifukwa cha kuyanjana kwa makina ndi mankhwala kapena electrochemical pakati pa zitsulo ndi chilengedwe.Kwa mavavu, nyengo ya ntchito yawo ya payipi ndizovuta, ndipo kukhalapo kwa hydrogen sulfide, carbon dioxide ndi ma organic acids muzofalitsa monga mafuta, gasi ndi madzi osungira madzi kumawonjezera mphamvu zowononga zachitsulo ndikutaya msanga luso logwira ntchito.

Kuwonongeka kwachitsulo kwazitsulo kumadalira kutentha, kuchuluka kwa mawotchi azitsulo, ma sulfide omwe ali muzinthu zopangira mafuta, kukhazikika kwa kukana kwa asidi, nthawi yolumikizana ndi sing'anga, catalysis ya zitsulo mpaka ndondomeko ya nitriding, liwiro la kutembenuka kwa molekyulu-ku-zitsulo zazinthu zowonongeka, ndi zina zotero.Chifukwa chake, njira zazitsulo zotsutsana ndi dzimbiri (kapena miyeso) ndikugwiritsa ntchito mavavu opangira zinthu zopangira, zidzakhala imodzi mwamitu yofufuza zamakampani amakono.

1. Anti-kudzimbirira wa Zitsulo Vavu

Mavavu azitsulo amatetezedwa ku dzimbiri powaphimba ndi chophimba chotetezera (penti, pigment, mafuta odzola, etc.) omwe amateteza valavu kuti isawonongeke panthawi yopanga, kusungirako, kuyendetsa, ndi kugwiritsa ntchito.

Njira ya anticorrosion ya Metal Valve imadalira nthawi yotetezedwa yofunikira, zoyendera ndi kusungirako, mawonekedwe omanga ma valve ndi zipangizo, ndithudi, kulingalira momwe chuma chikuyendera pakukweza anticorrosion.

Pali njira zinayi zazikulu zotetezera dzimbiri za Metal Valves ndi zigawo zake:

1.1 Tulutsani volatile corrosion inhibitor mu mpweya wa nthunzi (wokutidwa ndi pepala lopukutira, lopukutidwa kudzera muchipinda chogulitsira, ndi zina).

1.2 Gwiritsani ntchito madzi otsekedwa ndi mowa.

1.3 Ikani chophimba chopyapyala cha anticorrosive pamwamba pa valavu ndi mbali zake.

1.4 Ikani filimu yotsekedwa kapena filimu ya polima pamwamba pa valve ndi mbali zake.

2. Kugwiritsa Ntchito Vavu Yazinthu

Ma valve opangidwa ndi apamwamba kuposa ma valve achitsulo muzinthu zambiri zowonongeka, choyamba pakukana kwa dzimbiri, chachiwiri pa kulemera kwa ukonde, ndipo mphamvu zawo zimadalira mawonekedwe, makonzedwe, ndi chiwerengero cha ulusi wolimbitsa.(kawirikawiri, kuchuluka kwa fiber kumakhala kokulirapo, mphamvu yamaguluwo imakhala yayikulu.)

Mu ntchito mavavu, zoyambira kulemera zili CHIKWANGWANI ali mu osiyanasiyana 30% -40%, ndipo kukhazikika kwake mankhwala zimatsimikiziridwa ndi utomoni noumenon makhalidwe a utomoni encapsulated CHIKWANGWANI mu mankhwala omaliza.M'mavavu opangira, thupi lolimba la polima likhoza kukhala Thermoplastic (monga PVC-polyvinylidene fluoride, PPS-poly (p-phenylene sulfide), etc.) kapena thermosetting resin (monga polyester, ethylene ndi epoxy, etc.) .

Thermosetting resin imasunga mphamvu yake pa kutentha kwakukulu kuposa Thermoplastic resin (mwachitsanzo, thermosetting resin imakhala ndi kutentha kwakukulu kwa kutentha).