Uvavanyo lokungena (PT) luhlobo lovavanyo olungonakalisi. Umgaqo wayo osisiseko kukusebenzisa i-permeability elungileyo kunye nesenzo se-capillary ye-colored penetrants okanye i-fluorescent penetrants ukunciphisa izithuba. Emva kokungena, ukususwa, kunye nonyango lomfanekiso, iziphene zomhlaba zandiswa kwaye zibonakaliswe. , ukuze ugwebe uhlobo lwesiphene, indawo kunye nobukhulu. Uvavanyo lokungena kukusebenzisa uhlolo olubonakalayo okanye iglasi yokukhulisa ukufumanisa ukungaqhubeki kwimivulo engaphezuluiimveliso zokuphosa isinyithi. Nangona kunjalo, uvavanyo lokungena alukwazi ukubonisa ngokuchanekileyo uhlobo, imilo, ubungakanani kunye nobunzulu beziphene ezingapheliyo.
I-Penetrant iyona nto ibaluleke kakhulu ekuhloleni ukungena, kwaye umgangatho wayo uchaphazela ngokuthe ngqo uvakalelo lokuhlola. Abangeneyo kufuneka babe neempawu ezibalaseleyo zokumanzisa ukuqinisekisa iimpawu zokungena. Xa i-penetrant ixutywe ngemibala enemibala okanye i-fluorescent dyes, kunenzuzo ekuphuhliseni iziphene. Ukukhangela impazamo yombala kusebenzisa iidayi ezinemibala njenge-arhente yokubonisa umbala kwii-penters, ngelixa ukukhangela impazamo ye-fluorescent isebenzisa umgubo we-fluorescent njenge-agent ye-luminescent yokungena. Iindlela zokuthungatha zinokusebenza kwindawo zangaphakathi okanye zangaphandle. Ukuhlolwa kwe-Fluorescent penetrant isebenzisa i-fluorescence ekhutshwa phantsi kokukhanya kwe-ultraviolet okukhutshwa kukukhanya okumnyama ukuveza iziphene ezingaphezulu, ngoko ke kufuneka kwenziwe kwigumbi elimnyama.
Iicasts ezifuna ukuhlolwa okungaphakathi kufuneka zicocwe phambi kokuhlolwa, kwaye uburhabaxa bazo bomphezulu kufuneka buhlangabezane neemfuno zomgangatho ohambelanayo. Umhlwa, isikali kunye nepeyinti, igrisi, ukufuma, njl njl kumphezulu wokuphosa kufuneka kususwe. Emva kokuba ukuhlolwa kokungena kugqitywe, umphezulu wokuphosa kufuneka ususwe kwi-penetrant kunye nomphuhlisi, owomileyo kwaye, ukuba kuyimfuneko, ukhuselwe kwi-corrosion.
Iimpawu zoVavanyo oluNgenelanga kunye noMda walo wokusetyenziswa:
1. Indlela kunye nezixhobo zilula kwaye ziguquguquka.
2. Ubume be-casting alukhawulelwanga, kwaye ubunzima bomgangatho wendawo ehloliweyo buhambelana nomgangatho womgangatho wokuphosa.
3. Ukusebenza okulula, uvakalelo oluphezulu, kwaye alukhawulelwanga kwiipropati eziphathekayo.
4. Kuphela kuphosa iziphene phezu okanye kufuphi nomphezulu wokusabisa kunokubonwa.
Ixesha lokuposa: Sep-24-2022