Da farko, da fatattaka na bakin karfekarfe flangenazarin abubuwan da ke tattare da sinadaran, sakamakon bincike ya nuna cewa sinadarin sinadaran bakin karfeflange da waldibayanai sun dace da ƙayyadaddun bayanai masu dacewa. A brinell taurin na flange wuyansa surface da sealing surface an tsaya bi da bi, da kuma Brinell taurin darajar gana da bukatun. A kan yanayin cewa abubuwan da ke tattare da sinadarai na bayanan sun cancanta, na'urar bututu ta cika ka'idodin fasaha, gwajin gwagwarmaya ya cancanta, da ma'auni na aiki na gwajin matsa lamba, flange bututu yana fashe a cikin aikin gwajin matsa lamba. An bayyana cewa lahani yana da alaƙa da tsarin ciki na flange ko wasu abubuwan da ba a sani ba.

Yayyoflangean yanke shi daga bututun, flannel, don dakatar da binciken macro, ya gano cewa flange a cikin bayyanar fashe, tsayin 3mm, faɗin 0.5mm, fashe da gefen hagu ya haifar da tsatsa; An sami fashe-fashe da yawa a cikin ramukan ƙusoshin flange.

Yawancin abubuwan da ba na ƙarfe ba an samo su a saman rufin bakin karfe da sauran wurare. Wasu abubuwan da ba na ƙarfe ba sun kafa ƙananan ramuka saboda warwatse a saman saman murfin flange. Girman ramukan sun kai mm 2.0mm da girman 0.8mm, kuma gefen ramukan suna da ƴan tsage-tsafe waɗanda ido tsirara. Irin wannan tsari na ƙarin austenitic bakin karfe flanges ana tura don duba macro filin.

Yawancin flanges an gano suna da lahani a matakai daban-daban, kuma wasu flanges suna da fagagen fashe a bayyane ga ido tsirara. Sakamakon binciken macroscopic ya kara nuna cewa flange walda, yayyan flange da flange kanta yana da alaƙa. Domin a kara gano ainihin abin da ke haifar da zubewar flange, an zaɓi wani yanki na masana'anta iri ɗaya da tsari iri ɗaya ba da gangan ba.