1. Matakin mirgina sanyi:
Yanayin shimfidar tsiri akwai manyan abubuwa guda biyu na rashin ƙarfi da ragowar.

2. Taushin saman:
Tsari mai sarrafa tsiri mai sanyi wanda ya ƙunshi abubuwa da yawa, ta hanyar lalata tsiri, suna da ƙayyadaddun yanayin ƙasa don rage lahanin haɗin kai.

3. Tsarin pickling:
Babban manufar shi ne don cire pickling tsari na zafi-birgima tsiri surface baƙin ƙarfe oxide, baƙin ƙarfe oxide fata kau rabo da za a sarrafa yadda ya kamata, domin mafi alhẽri sarrafa baƙin ƙarfe oxide saura a kan zafi mirgina tsari ko da bukatar a gyara.

4. Ragowar saman tsiri mai sanyi:
Ka'idar tsaftacewa, don shiga ta hanyar datti mai tsabtatawa wakili wetting, soaked, nannade tsiri tsari da za a cire daga karfe surface. Ƙarfin rawar da ƙwayoyin polar ke shafar aikin tsaftacewa na sama kawai, yana haifar da raguwar tsaftacewa.

Ana amfani da fasahar galvanizing mai zafi mai zafi don samar da farantin galvanized mai zafi mai kyau, saman ainihin ingancin tsaftacewa na katako shine mabuɗin. Tare da abubuwan tsaftacewa, an cire saman tsiri maiko, ƙarfe da sauran datti. Bayan tsaftataccen tsiri mai kyau, wanke wankan zinc zai ƙara ƙarfin jika don samun ingantaccen saman saman tutiya.