Gwajin da ba ta lalacewa ba ita ce amfani da kayan sauti, na gani, maganadisu da lantarki, ba tare da cutarwa ko yin tasiri ga amfani da abin da ke ƙarƙashin yanayin aikin abin da za a bincika ba, don gano akwai lahani ko rashin daidaituwa a cikin abun. a duba, a ba da girman nakasun, wurin da lahani yake, yanayin adadin bayanai da sauransu, sannan a tantance yanayin fasaha na abin da za a bincika (misali, cancanta ko rashin cancanta, saura rayuwa. da sauransu) duk hanyoyin fasaha na gaba ɗaya.
Hanyoyin gwajin da ba su lalacewa da aka fi amfani da su: Gwajin Ultrasonic (UT), Gwajin Barar Magnetic (MT), Gwajin shigar da Ruwa (PT) da Gwajin X-ray (RT).
Gwajin Ultrasonic
UT (Gwajin Ultrasonic) yana ɗaya daga cikin hanyoyin gwaji marasa lalacewa a cikin masana'antu. Ultrasonic tãguwar ruwa a cikin abin da ya ci karo da lahani, wani ɓangare na sautin kalaman za a nuna, mai watsawa da mai karɓa na iya yin nazari na nuni da igiyar ruwa, zai iya zama na kwarai ma'auni na lahani. Kuma zai iya nuna wuri da girman lahani na ciki, ƙayyade kauri daga cikin kayan.
Amfanin gwajin Ultrasonic:
1, ikon shigar azzakari yana da girma, alal misali, a cikin ƙarfe a cikin zurfin ganowa mai inganci har zuwa mita 1 ko fiye;.
2, don nau'in nau'in nau'in jirgin sama irin su fasa, interlayers, da dai sauransu, gano babban hankali, kuma zai iya ƙayyade zurfin da girman girman lahani;
3, kayan aiki mara nauyi, aiki mai aminci, mai sauƙin gane dubawa ta atomatik.
Rashin hasara:
Ba sauki don duba hadaddun siffar aikin ba, yana buƙatar wani nau'i na santsi na farfajiyar da aka bincika, kuma ana buƙatar wakili mai haɗawa don cika rata tsakanin binciken da farfajiyar da aka bincika don tabbatar da isasshen haɗin haɗin sauti.
Binciken Barbashi Magnetic
Da farko, bari mu fahimci ka'idar duban ƙwayoyin maganadisu. Bayan magnetization na ferromagnetic kayan da workpieces, saboda kasancewar discontinuities, da Magnetic Lines na karfi a kan surface na workpiece da kuma kusa da surface na gida murdiya, da kuma haifar da yayyo filin, adsorption na Magnetic foda shafi surface. na workpiece, forming wani gani gani Magnetic alama a dace haske, don haka nuna wuri, siffar da girman da katsewa.
Dogaro da iyakoki na duba barbashi na maganadisu sune:
1, Ganewar ɓarna na magnetic ya dace don gano katsewa a saman kayan ferromagnetic kuma kusa da saman tare da ƙaramin girman girman da kunkuntar gibin da ke da wahala a gani.
2, Binciken ƙwayar maganadisu na iya zama lokuta daban-daban na gano sassa, amma kuma nau'ikan nau'ikan sassa da za a gano.
3, na iya samun fasa, hadawa, layin gashi, farar tabo, nadawa, rarrabuwar sanyi da sako-sako da sauran lahani.
4, Magnetic barbashi dubawa ba zai iya gane austenitic bakin karfe kayan da welds welded tare da austenitic bakin karfe waldi lantarki, kuma ba zai iya gane jan karfe, aluminum, magnesium, titanium da sauran wadanda ba Magnetic kayan. Domin saman m scratches, binne zurfafa ramuka da tare da workpiece surface kwana kasa da 20 ° delamination da nadawa da wuya a samu.
Gano shigar ruwa
Asalin ka'idar gano shigar ruwa ruwa, saman ɓangaren an lulluɓe shi da dyes masu kyalli ko dyes masu canza launin, a cikin ɗan lokaci a ƙarƙashin aikin capillary, ruwa mai shiga zai iya shiga cikin lahani na buɗe ido; bayan cire wuce haddi mai ratsa jiki a saman sashin, sannan kuma an lullube shi da mai haɓakawa a saman sashin.
Hakazalika, a ƙarƙashin aikin capillary, mai haɓakawa zai jawo lahani a cikin riƙewar ruwa, komawa zuwa ga mai haɓakawa, a cikin wani haske mai haske (hasken ultraviolet ko farin haske), an nuna lahani a cikin alamun da ke cikin ruwa, ( rawaya-kore mai kyalli ko ja mai haske), don gano lahani na ilimin halittar jiki da rarraba jihar.
Fa'idodin gano shiga sune:
1, na iya gano abubuwa iri-iri;
2, yana da babban hankali;
3, nuni yana da ilhama, mai sauƙin aiki, ƙananan farashin ganowa.
Kuma illolin gwajin shiga ciki sune:
1, ba dace da dubawa na porous sako-sako da abu Ya sanya daga workpieces da m surface workpieces;
2, gwajin shigar azzakari cikin farji na iya gano rarrabuwar lahani kawai, yana da wahala a tantance ainihin zurfin lahani, sabili da haka yana da wahala a yi ƙima na lahani. Hakanan ma'aikaci yana shafar sakamakon ganowa.
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Binciken X-ray
Na ƙarshe, gano hasken, saboda X-ray ta hanyar abin da aka lalatar zai sami asara, kauri daban-daban na abubuwa daban-daban akan yawan shan su ya bambanta, kuma mummunan yana sanya shi a daya gefen abin da ya haskaka, saboda tsananin hasken. sun bambanta kuma suna samar da hoton da ya dace, masu kimanta fim za su iya dogara da hoton don sanin ko akwai lahani a cikin abin da kuma yanayin lahani.
Amfani da iyakoki na gano hasken:
1, ƙarin kulawa don gano lahani na volumetric, mai sauƙin siffanta lahani.
2, ray korau yana da sauƙin riƙewa, akwai ganowa.
3, ganin siffa da nau'in lahani.
4, rashin amfani ba zai iya gano zurfin da aka binne na lahani ba, yayin da aka gano iyakacin kauri, ana buƙatar aika mara kyau na musamman don wankewa, kuma jikin mutum yana da wani lahani, farashin ya fi girma.
A takaice, ultrasonic, gano kuskuren X-ray ya dace don gano lahani na ciki; inda ultrasonic fiye da 5mm, da kuma siffar na yau da kullum sassa, X-ray ba zai iya gano wuri da binne zurfin lahani, radiation. Magnetic barbashi da shigar azzakari cikin farji gano lahani ya dace da gano lahani a saman sassa; A cikin su, gano ɓarna na maganadisu yana iyakance ga gano kayan maganadisu, kuma gano aibi na shiga yana iyakance ga gano lahani buɗe a saman.
Lokacin aikawa: Agusta-24-2023