Kev ntxuav ntawm petri phaj feem ntau mus txog plaub kauj ruam ntawm soaking, txhuam hniav, acid soaking, thiab ntxuav.
1. Soaking: Tshiab los yog siv khob iav yuav tsum tau soaked nyob rau hauv dej ua ntej kom soften thiab yaj cov attachments. Ua ntej siv cov iav tshiab, tsuas yog txhuam nws nrog cov kais dej, thiab tom qab ntawd tsau nws hauv 5 feem pua ntawm hydrochloric acid thaum hmo ntuj; siv khob iav feem ntau muaj cov protein ntau thiab cov roj txuas nrog, uas tsis yooj yim rau ntxuav tom qab ziab, yog li nws yuav tsum tau muab tso rau hauv dej huv tam sim ntawd tom qab siv txhuam hniav. .
2. Kev txhuam hniav: Muab cov khob iav uas ntub dej rau hauv cov tshuaj ntxuav tes, thiab txhuam nrog txhuam txhuam. Tsis txhob tawm ntawm cov ces kaum tuag thiab tiv thaiv kev puas tsuaj rau qhov kawg ntawm cov tais diav. Ntxuav thiab qhuav cov iav ntxuav kom qhuav.
3. Pickling: Pickling yog kom ntub cov tais diav saum toj no hauv cov tshuaj ntxuav, tseem hu ua kua qaub, kom tshem tawm cov khoom seem seem ntawm cov tais diav los ntawm qhov muaj zog oxidation ntawm cov kua qaub. Pickling yuav tsum tsis pub tsawg tshaj li rau teev, feem ntau thaum hmo ntuj lossis ntev dua. Ceev faj thaum tuav cov tais diav.
4. Yaug: Cov tais diav tom qab txhuam thiab pickling yuav tsum tau muab yaug nrog dej. Txawm hais tias cov tais diav tau muab yaug kom huv si tom qab pickling ncaj qha cuam tshuam rau kev vam meej lossis tsis ua tiav ntawm kab lis kev cai ntawm tes. Thaum ntxuav cov tais diav los ntawm tes, txhua lub tais yuav tsum "sau nrog dej-kho" ntau zaus tsawg kawg 15 zaug, muab tso rau hauv cov dej rov ua dua li 2-3 zaug, qhuav lossis qhuav thiab muab ntim rau tom qab siv.