Menenegwaji mara lalacewa?

Gwajin mara lalacewa, wanda ake kira NDT, fasaha ce ta bincike ta zamani wacce ke gano siffa, matsayi, girma da ci gaban lahani na ciki ko na waje ba tare da lalata abin da za a bincika ba. An yi amfani da shi sosai wajen samar da bututun ƙarfe a cikin 'yan shekarun nan. Hanyoyin gwaji marasa lalacewa da aka yi amfani da su wajen samar dabututu & bututu marasa sumulgalibi sun haɗa da gwajin ƙwayar maganadisu, gwajin ultrasonic, gwajin eddy na yanzu, gwajin rediyo, gwajin shiga, da sauransu, kuma hanyoyin gwaji daban-daban suna da takamaiman kewayon aikace-aikace.

1. Gwajin Kwayoyin Magnetic
Aiwatar da hodar maganadisu a saman bututun da ba shi da sumul don a gwada shi, a yi amfani da filin maganadisu ko halin yanzu don sanya shi shiga cikin lahani, samar da rarraba cajin maganadisu, sannan kuma duba wurin da aka sanya hodar maganadisu don gano lahani.

2. Gwajin Ultrasonic
Yin amfani da halaye na yaduwa na ultrasonic a cikin kayan, ta hanyar watsawa da karɓar siginar ultrasonic, yana gano lahani ko canje-canje a cikin bututu marasa ƙarfi.

3. Gwajin Eddy na yanzu
Madadin filin lantarki yana aiki a saman bututun da aka bincika don samar da igiyoyin ruwa da gano lahani a cikin kayan.

4. Binciken rediyo
Bututun da aka bincika yana haskakawa da hasken X-ray ko γ-rays, kuma ana gano lahani a cikin kayan ta hanyar gano watsawa da watsawar haskoki.

5. Gwajin shigar ciki
Ana amfani da rini mai ruwa a saman bututun gwajin da ba su da kyau, kuma ya kasance a saman jiki don ƙayyadadden lokacin da aka saita. Rini na iya zama ruwa mai launi wanda za'a iya gane shi a ƙarƙashin haske na al'ada, ko ruwan rawaya/kore mai kyalli wanda ke buƙatar haske na musamman ya bayyana. Rini na ruwa ya "wicks" a cikin buɗaɗɗen fashe a saman kayan. Ayyukan capillary yana ci gaba da kasancewa a cikin gidan rini har sai an wanke rini gaba ɗaya. A wannan lokacin, ana amfani da wani nau'in hoto a saman kayan da za a bincika, ya shiga cikin tsagewa kuma ya sanya shi launi, sannan ya bayyana.

Abubuwan da ke sama su ne ainihin ƙa'idodin gwaji marasa lalacewa guda biyar na al'ada, kuma takamaiman tsarin aiki zai bambanta bisa ga hanyoyin gwaji da kayan aiki daban-daban.