Imifantu Iyacasha? Sebenzisa i-IR imaging yokuhlaziya i-Granite Thermo-Stress Analysis

Kwa-ZHHIMG®, sisebenza ngokukhethekile ekukhiqizeni izingxenye ze-granite ngokunemba kwe-nanometer. Kodwa ukunemba kweqiniso kudlulela ngale kokubekezelelana kokukhiqiza kokuqala; ihlanganisa ubuqotho besakhiwo sesikhathi eside nokuqina kwempahla ngokwayo. I-Granite, kungakhathaliseki ukuthi isetshenziswa ezisekelweni zomshini wokunemba noma ukwakhiwa kwesilinganiso esikhulu, isengozini yokulimala kwangaphakathi njengama-micro-cracks nama-voids. Lokhu kungapheleli, kuhlanganiswe nokucindezeleka okushisayo kwemvelo, kunquma ngokuqondile ukuphila nokuphepha kwengxenye.

Lokhu kudinga ukuhlolwa okuthuthukile, okungahlanyisi. I-Thermal Infrared (IR) Imaging ivele njengendlela ebalulekile yokuhlola i-Nondestructive Testing (NDT) yegwadle, ehlinzeka ngezindlela ezisheshayo, ezingathinteki zokuhlola impilo yayo yangaphakathi. Ngokuhambisana ne-Thermo-Stress Distribution Analysis, singadlulela ngale kokuthola iphutha ukuze siqonde ngempela umthelela wako ekuzinzeni kwesakhiwo.

Isayensi Yokubona Ukushisa: Izimiso Zokucabanga ze-IR

I-Thermal IR imaging isebenza ngokuthwebula amandla e-infrared aphuma endaweni yegwadle futhi iwahumushele kumephu yezinga lokushisa. Lokhu kusatshalaliswa kwezinga lokushisa kuveza ngokungaqondile izici ze-thermophysical ezingaphansi.

Umgomo uqondile: ukukhubazeka kwangaphakathi kusebenza njenge-anomalies yokushisa. Ukwenza isibonelo, umfantu noma igebe, kuthikameza ukuhamba kokushisa, okubangele umehluko obonakalayo wamazinga okushisa kumsindo ozungezile. Ukuqhekeka kungase kubonakale njengokupholile (okuvimbela ukugeleza kokushisa), kuyilapho indawo enezimbotshana eziningi, ngenxa yokuhluka komthamo wokushisa, ingase ibonise indawo eshisayo eyenziwe yasendaweni.

Uma kuqhathaniswa nezindlela ezijwayelekile ze-NDT ezifana nokuhlolwa kwe-ultrasonic noma i-X-ray, ukucabanga kwe-IR kunikeza izinzuzo ezihlukile:

• Ukuskena Okusheshayo, Kwendawo Enkulu: Isithombe esisodwa singamboza amamitha-skwele ambalwa, sisenze sifaneleke ekuhlolweni okusheshayo kwezingxenye ezinkulu zegwadle, njengemishayo yebhuloho noma imibhede yomshini.
• Ongakuthintwa futhi Ayikonakali: Indlela ayidingi ukuhlangana ngokomzimba noma indlela yokuxhumana, iqinisekisa ukuthi akukho monakalo wesibili endaweni ehlanzekile yengxenye.
• I-Dynamic Monitoring: Ivumela ukuthwebula ngesikhathi sangempela kwezinqubo zokushintsha kwezinga lokushisa, okubalulekile ekuhlonzeni okungaba khona ukukhubazeka okubangelwa ukushisa njengoba kuthuthuka.

Ukuvula iMechanism: Theory of Thermo-Stress

Izingxenye ze-Granite zithuthukisa ngokungenakugwenywa izingcindezi zokushisa zangaphakathi ngenxa yokuguquguquka kwezinga lokushisa noma imithwalo yangaphandle. Lokhu kulawulwa yizimiso ze-thermoelasticity:

• I-Thermal Expansion Mismatch: I-Granite iyidwala eliyinhlanganisela. Izigaba zamaminerali zangaphakathi (ezifana ne-feldspar ne-quartz) zinama-coefficients ahlukile wokunweba okushisayo. Uma amazinga okushisa eshintsha, lokhu kungafani kuholela ekwandeni okungajwayelekile, okudala izindawo ezigxilile zokudonsa kanzima noma ingcindezi ecindezelayo.
• Umphumela Wokubamba Okungalungile: Amaphutha afana nokuqhekeka noma izimbotshana ngokwemvelo zicindezela ukukhululwa kwengcindezi yendawo, okubangela ukugxila kwengcindezi ephezulu kokusebenza okuseduze. Lokhu kusebenza njenge-accelerator yokusabalalisa i-crack.

Ukulingiswa kwezinombolo, okufana ne-Finite Element Analysis (FEA), kubalulekile ekulinganiseni le ngozi. Isibonelo, ngaphansi kwezinga lokushisa elijikelezayo elingu-20°C (njengomjikelezo ovamile wosuku/ubusuku), i-granite slab equkethe ukuqhekeka okuma mpo ingathola ukucindezeleka okungaphezulu okufika ku-15 MPa. Uma kubhekwa ukuthi amandla e-granite aqinile ngokuvamile angaphansi kuka-10 MPa, lokhu kugxilisa ingqondo kungabangela ukuqhekeka kukhule ngokuhamba kwesikhathi, okuholela ekulimazeni kwesakhiwo.

Ubunjiniyela Obusebenzayo: Isifundo Sokulondolozwa

Kuphrojekthi yakamuva yokubuyisela ephathelene nekholomu yakudala yegwadle, ukuthwebula kwe-IR eshisayo kukhombe ngempumelelo ibhande elibandayo le-annular elingalindelekile engxenyeni emaphakathi. Ukubhola okwalandela kwaqinisekisa ukuthi lokhu okudidayo kwakuwumfantu ovundlile wangaphakathi.

Okunye ukumodela kwe-thermo-stress kwaqalwa. Ukulingisa kwembule ukuthi ukucindezelwa okuphezulu kokuqineka phakathi kokuqhekeka phakathi nokushisa kwasehlobo kufinyelele ku-12 MPa, okudlula ngokuyingozi umkhawulo wezinto ezibonakalayo. Ukulungiswa okudingekayo kwakuwumjovo onembile we-epoxy resin ukuze kuzinze isakhiwo. Ukuhlolwa kwe-IR kwangemva kokulungisa kuqinisekise inkambu yokushisa efanayo ngokuphawulekayo, futhi ukulingisa ukucindezeleka kwaqinisekisa ukuthi ukucindezeleka okushisayo kwehliselwe embundwini ophephile (ngaphansi kuka-5 MPa).

I-Horizon Yokuqapha Kwezempilo Okuthuthukisiwe

I-Thermal IR imaging, ehlanganiswe nokuhlaziywa kokucindezeleka okuqinile, inikeza indlela yobuchwepheshe ephumelelayo nethembekile ye-Structural Health Monitoring (SHM) yengqalasizinda yegwadle ebalulekile.

Ikusasa lale ndlela yokusebenza likhomba ekuthembekeni okuthuthukisiwe kanye nokuzishintshanisa:

1. I-Multi-Modal Fusion: Ukuhlanganisa idatha ye-IR nokuhlolwa kwe-ultrasonic ukuze kuthuthukiswe ukunemba kwenani lokujula kwesici nokuhlola usayizi.
2. I-Intelligent Diagnostics: Ukuthuthukisa ama-algorithms okufunda okujulile ukuze kuhlotshaniswe izinkambu zokushisa nezinkambu ezilingisayo zengcindezi, okuvumela ukuhlukaniswa okuzenzakalelayo kokukhubazeka nokuhlola ubungozi obuqagelayo.
3. I-Dynamic IoT Systems: Ukuhlanganisa izinzwa ze-IR nobuchwepheshe be-IoT ukuze kuqashwe ngesikhathi sangempela izimo ezishisayo nemishini ezakhiweni ezinkulu zegwadle.

Ngokukhomba ngokunganaki ukukhubazeka kwangaphakathi kanye nokubala ubungozi bengcindezi yokushisa ehambisanayo, le ndlela ethuthukisiwe inweba ngokuphawulekayo ubude besikhathi sokuphila, inikeza isiqinisekiso sesayensi sokulondolozwa kwamagugu kanye nokuphepha kwengqalasizinda enkulu.