Kusankhidwa kwa zinthu za ma valves a mankhwala a ma valves a mpira

Kuwonongeka ndi chimodzi mwa zoopsa za mutu wa zida za mankhwala. Kusasamala pang'ono kumatha kuwononga zida, kapena kuyambitsa ngozi kapenanso tsoka. Malinga ndi ziwerengero zoyenera, pafupifupi 60% ya kuwonongeka kwa zida zama mankhwala kumachitika chifukwa cha dzimbiri. Choncho, chikhalidwe cha sayansi cha kusankha zinthu chiyenera kuganiziridwa posankha valavu ya mankhwala.

Mfundo zazikuluzikulu pakusankha zinthu:

1. Sulphuric acid ndi yofunika mafakitale zopangira ndi osiyanasiyana kwambiri ntchito. Sulphuric acid yamitundu yosiyanasiyana komanso kutentha imakhala ndi kusiyana kwakukulu pakuwonongeka kwazinthu. Chitsulo cha carbon ndi chitsulo chosungunula chimakhala ndi kukana kwa dzimbiri bwino, koma sikoyenera kuthamanga kwambiri kwa sulfuric acid ndipo sikuyenera kugwiritsidwa ntchito. Zinthu zapampu valavu. Choncho, mavavu apampu a sulfuric acid nthawi zambiri amapangidwa ndi chitsulo chapamwamba cha silicon ndi chitsulo chosapanga dzimbiri chapamwamba.

2. Zida zambiri zazitsulo sizigonjetsedwa ndi hydrochloric acid corrosion. Mosiyana ndi zida zachitsulo, zinthu zambiri zopanda chitsulo zimakhala ndi kukana kwa dzimbiri kwa hydrochloric acid. Choncho, mavavu a rabara ndi mavavu apulasitiki okhala ndi hydrochloric acid ndi zosankha zabwino kwambiri zonyamulira hydrochloric acid.

3. Nitric acid, zitsulo zambiri zimawonongeka mofulumira ndikuwonongeka mu asidi wa nitric. Chitsulo chosapanga dzimbiri ndizomwe zimagwiritsidwa ntchito kwambiri ndi nitric acid kugonjetsedwa ndi zinthu. Ili ndi kukana bwino kwa dzimbiri kumagulu onse a nitric acid kutentha kwapakati. Pa kutentha kwa nitric acid, titaniyamu ndi titaniyamu zimagwiritsidwa ntchito. Aloyi zipangizo.

4. Acetic acid ndi imodzi mwazinthu zowononga kwambiri mu ma organic acid. Chitsulo wamba chidzaipitsidwa kwambiri mu asidi acetic nthawi zonse ndi kutentha. Chitsulo chosapanga dzimbiri ndi chinthu chabwino kwambiri cholimbana ndi acetic acid, chomwe chimakhala chovuta kutentha kwambiri komanso kuchuluka kwa asidi kapena zinthu zina zowononga. Pakafunika, mavavu achitsulo chosapanga dzimbiri kapena ma valve a fluoroplastic amatha kusankhidwa.