1.Xa i-sand blasting okanye i-manual derusting isetyenzisiweyo, isikali sesinyithi phezu kwendawoumbhobho wentsimbi wobubanzi obukhulu ibonakaliswe ngokuthe ngqo emoyeni ngenxa yokuhluthwa kwesikali se-oxide ukusuka kumbhobho wensimbi omkhulu wobubanzi.Ukuba i-primer ayipeyintwanga ngexesha, umphezulu wombhobho wensimbi we-diameter enkulu unokuthi uphinde ugxume, ochaphazela ukunamathela kwefilimu yepeyinti.Kuba ipeyinti iyimathiriyeli ethatha ixesha, ukusilela kwi-inventri kudla ngokuphelelwa lixesha kwaye kungabi nakusebenza.Ngoko ke, izibonakaliso eziphambili zepeyinti ziphinda zihlolwe ngaphambi kokusetyenziswa, kwaye iziphumo zidibana nomgangatho.

I-2.Derusting: Le yinkqubo ebalulekileyo ngaphambi kokugquma kweemibhobho zetsimbi ezinobubanzi obukhulu kunye namacandelo, kwaye iyisitshixo kwimibhobho yensimbi emikhulu.Ukususwa kwe-rust kunokuphucula ukunamathela kwepeyinti echasene ne-rust, ngaloo ndlela ukwandisa ubomi benkonzo yeepayipi ezinkulu zetsimbi.

3.Ubuso bombhobho wentsimbi obubanzi obukhulu obucutshungulwa ngokuqhunyiswa kwesanti, ukudutyulwa kokudubula okanye inkqubo yokuchola icocekile, kwaye isikali se-oxide kunye nomhlwa zicocekile, nto leyo ephucula ukunamathela kokutyabeka.Xa indawo yofakelo iphathwa ngokungenamiqathango ngokuqhunyiswa kwesanti kunye nokuqhushumba kwembumbulu, oomatshini abazandla bangasetyenziselwa ukususwa komhlwa, kodwa inqanaba lokususa irusi liyafikelelwa.