1. Kukho iindlela ezine zokupholisha ze-bi-phaseintsimbi yentsimbi: manual, mechanical, chemical and electrochemical. Ukumelana nomhlwa kunye nokuhonjiswa kweiflangeingaphuculwa ngokupolisha. Ulwelo olukhoyo lokupholisha lombane lwentsimbi engatyiwayo lusasebenzisa iasidi yephosphoric kunye nechromic anhydride. Kwinkqubo yokupholisa kunye nokucoca, enye i-chromium kunye ne-phosphorus iya kukhutshelwa emanzini amdaka, okubangela ukungcola kokusingqongileyo.

2. Ifilimu yokupasa iya kwenziwa kumphezulu we-duplexintsimbi yentsimbi, kwaye ifilimu ye-oxide iya kuqala ukuchithwa. Ngenxa yokuba i-microstructure yomphezulu we-duplexintsimbi yentsimbiayihambelani, inxenye encinci ye-convex yomhlaba ikhethwa ngokukhethiweyo, kwaye izinga lokuchithwa liya kuba phezulu kunelo nxalenye ye-concave. Ukuchithwa kunye nokwakheka kwe-membrane phantse ngexesha elifanayo, kodwa i-velocities yabo iyahluka. Ngenxa yoko, uburhabaxa bomphezulu be-bi-phase steel flange buncitshisiwe, okubangela ukuba kubekho indawo egudileyo, ekhanyayo.
3. Ezinye iziphene zomhlaba ezifana neepores kunye nemikrwelo zinokuzaliswa ngokupolisha, ukwenzela ukuba kuphuculwe ukumelana nokudinwa kunye nokuxhathisa okuhambelana nokubola. Iiflange zensimbi ye-Biphase zinamandla aphindwe kabini amandla emveliso ye-austenitic stainless steel, kwaye ineplastiki eyaneleyo kunye nokuqina okufunekayo kolu bumba, kunye noxinzelelo oluphezulu lokumelana nokuqhekeka kwe-corrosion, ngakumbi kwiindawo ze-chloride.