Yanayin saman bututun ƙarfe an san shi azaman yanayin cewa wannan shine ta hanyar rufin bututun ƙarfe tare da rufin ƙasa da ke kewaye, yanayin saman bututu ya bambanta da makonni huɗu na ƙasa.Don haka Layer anti-corrosion Layer shine muhimmin shinge don hana zaizayar ƙasa.Wani sanannen masanin kasashen waje ya gabatar da "3PE na kare kariya ta Faransa", ya zuwa yanzu, ana amfani da hanyoyin hana lalata.

Ainihin ayyuka na erw bututu shafi:

1, yin samanERW karfe bututu free daga electrochemical lalata na ƙasa matsakaici, ainihin kimiyyar lissafi na kwayan cuta kariya.

2, tsayayya da motsi na ƙasa matsakaitan damuwa mai rarrafe, matsananciyar damuwa da abrasion ƙarfi hanya da tsari na asali kayan kariya.

Ainihin ka'idodin zaɓin bututun iskar gas na birni:

a, mai kyau insulating da inji Properties;

b, kyakkyawan juriya ga aikin rushewar cathodic;

c, mai kyau juriya ga ruwa, gas permeability;

d, kyakkyawan aikin juriya na sinadarai da kayan rigakafin tsufa;

e, juriya ga ƙananan zafin jiki da yawan zafin jiki;

f, sauƙin gyarawa da gyarawa;

g, a farashi masu ma'ana.