Kwa-ZHHIMG®, singochwepheshe ekukhiqizeni izingxenye ze-granite ngokunemba kwe-nanometer. Kodwa ukunemba kwangempela kudlulela ngale kokubekezelela kokuqala kokukhiqiza; kuhlanganisa ubuqotho besakhiwo sesikhathi eside kanye nokuqina kwezinto ngokwazo. I-granite, kungakhathaliseki ukuthi isetshenziswa ezisekelweni zomshini wokunemba noma ukwakhiwa okukhulu, isengozini yokuphazamiseka kwangaphakathi njengemifantu emincane kanye nezikhala. Lokhu kungapheleli, kuhlanganiswe nokucindezeleka kokushisa kwemvelo, kulawula ngqo ubude besikhathi kanye nokuphepha kwengxenye.
Lokhu kudinga ukuhlolwa okuthuthukisiwe, okungangenisi uhlaselo. I-Thermal Infrared (IR) Imaging ivele njengendlela ebalulekile yokuhlolwa okungabhubhisi (NDT) ye-granite, enikeza indlela esheshayo, engathintani yokuhlola impilo yayo yangaphakathi. Uma kuhambisana nokuhlaziywa kokusabalalisa kwe-Thermo-Stress, singadlulela ngale kokuthola iphutha ekuqondeni ngempela umthelela walo ekuzinzeni kwesakhiwo.
Isayensi Yokubona Ukushisa: Izimiso Zokuthwebula Izithombe Ze-IR
Ukuthwebula nge-thermal IR kusebenza ngokuthwebula amandla e-infrared avela ebusweni be-granite bese kuhunyushwa kube imephu yokushisa. Lokhu kusatshalaliswa kokushisa kwembula ngokungaqondile izakhiwo ezingaphansi kwe-thermophysical.
Isimiso siqondile: amaphutha angaphakathi asebenza njengezinkinga zokushisa. Isibonelo, ukuqhekeka noma igebe livimbela ukugeleza kokushisa, okubangela umehluko obonakalayo ekushiseni okuvela ezintweni ezizungezile zomsindo. Ukuqhekeka kungase kubonakale njengomugqa opholile (ukuvimba ukugeleza kokushisa), kuyilapho indawo enezimbobo eziningi, ngenxa yokungafani kwamandla okushisa, ingabonisa indawo eshisayo yendawo.
Uma kuqhathaniswa namasu avamile e-NDT njengokuhlolwa kwe-ultrasound noma i-X-ray, i-IR imaging inikeza izinzuzo ezihlukile:
- Ukuskena Okusheshayo, Okukhulu: Isithombe esisodwa singamboza amamitha-skwele amaningana, okwenza kube kuhle kakhulu ekuhlolweni okusheshayo kwezingxenye ezinkulu ze-granite, njengemigoqo yamabhuloho noma imibhede yomshini.
- Akuthinteki futhi Akubhubhisi: Le ndlela ayidingi ukuhlanganiswa ngokomzimba noma indawo yokuxhumana, okuqinisekisa ukuthi akukho monakalo wesibili ebusweni obuhlanzekile bengxenye.
- Ukuqapha Okuguquguqukayo: Kuvumela ukuthwebula izinqubo zokushintsha kwezinga lokushisa ngesikhathi sangempela, okubalulekile ekuboneni amaphutha angaba khona abangelwa ukushisa njengoba ekhula.
Ukuvula Indlela Yokusebenza: Inkolelo-mbono Yokucindezeleka Kwe-Thermo
Izingxenye ze-granite zithuthukisa ngokungenakugwenywa ukucindezeleka kokushisa kwangaphakathi ngenxa yokushintshashintsha kwezinga lokushisa noma imithwalo yangaphandle. Lokhu kulawulwa yizimiso ze-thermoelasticity:
- Ukungalingani Kokukhula Kokushisa: I-Granite iyidwala elihlanganisiwe. Izigaba zangaphakathi zamaminerali (njenge-feldspar ne-quartz) zinezilinganiso zokukhula kokushisa ezihlukile. Lapho amazinga okushisa eshintsha, lokhu kungafani kuholela ekwandeni okungafani, okudala izindawo ezigxilile zokucindezeleka okucindezelekile noma okucindezelayo.
- Umphumela Wokuvinjelwa Kwamaphutha: Amaphutha afana nokuqhekeka noma ama-pores avimbela ngokwemvelo ukukhishwa kokucindezeleka kwendawo, okubangela ukugxila okuphezulu kokucindezeleka ezintweni eziseduze. Lokhu kusebenza njengesisheshisi sokusabalala kwama-crack.
Ukulingisa ngezinombolo, njenge-Finite Element Analysis (FEA), kubalulekile ekulinganiseni le ngozi. Isibonelo, ngaphansi kokushintshashintsha kwezinga lokushisa okungu-20°C (njengomjikelezo ojwayelekile wasemini/ebusuku), i-granite slab equkethe umfantu oqondile ingabhekana nokucindezeleka kokudonsa okuphezulu okufinyelela ku-15 MPa. Njengoba amandla okudonsa e-granite ngokuvamile angaphansi kuka-10 MPa, lokhu kugcwala kokucindezeleka kungabangela ukuba umfantu ukhule ngokuhamba kwesikhathi, okuholela ekuwohlokeni kwesakhiwo.
Ubunjiniyela Busebenza: Ucwaningo Lwesibonelo Ekulondolozweni
Kuphrojekthi yokuvuselela yakamuva ephathelene nekholomu ye-granite yasendulo, i-thermal IR imaging ithole ngempumelelo i-annular cold band engalindelekile engxenyeni ephakathi. Ukubhoboza okulandelayo kuqinisekisile ukuthi lokhu okungajwayelekile kwakuyi-internal horizontal crack.
Kwaqalwa ukumodelwa okwengeziwe kwe-thermo-stress. Ukulingisa kwembula ukuthi ukucindezeleka okuphezulu kokucindezela ngaphakathi kwe-fack ngesikhathi sokushisa kwehlobo kufinyelele ku-12 MPa, okungaphezu komkhawulo wezinto ezibonakalayo ngendlela eyingozi. Ukulungiswa okudingekayo kwakuwukufaka i-epoxy resin enembile ukuze kuqiniswe isakhiwo. Ukuhlolwa kwe-IR ngemuva kokulungiswa kuqinisekisile insimu yokushisa efanayo kakhulu, kanti ukulingisa ukucindezeleka kwaqinisekisa ukuthi ukucindezeleka kokushisa kuncishisiwe kwaba umkhawulo ophephile (ngaphansi kwe-5 MPa).
Umbono Wokuqapha Impilo Okuthuthukisiwe
Ukuthwebula izithombe ze-thermal IR, kuhlanganiswe nokuhlaziywa kokucindezeleka okuqinile, kunikeza indlela yobuchwepheshe ephumelelayo nethembekile ye-Structural Health Monitoring (SHM) yengqalasizinda ebalulekile ye-granite.
Ikusasa lale ndlela likhomba ekuthembekeni okuthuthukisiwe kanye nokwenza izinto ngokuzenzakalela:
- I-Multi-Modal Fusion: Ukuhlanganisa idatha ye-IR nokuhlolwa kwe-ultrasonic ukuthuthukisa ukunemba kwenani lokujula kwesici kanye nokuhlolwa kosayizi.
- Ukuxilongwa Okuhlakaniphile: Ukuthuthukisa ama-algorithms okufunda okujulile ukuze kuhlotshaniswe amasimu okushisa nezinkundla zokucindezeleka ezilingisiwe, okuvumela ukuhlukaniswa okuzenzakalelayo kwamaphutha kanye nokuhlolwa kwengozi okubikezelayo.
- Izinhlelo ze-Dynamic IoT: Ukuhlanganisa izinzwa ze-IR nobuchwepheshe be-IoT ukuze kuqashwe ngesikhathi sangempela izimo zokushisa nezomshini ezakhiweni ezinkulu ze-granite.
Ngokubona amaphutha angaphakathi ngaphandle kokuphazamisa kanye nokulinganisa izingozi zokucindezeleka kokushisa ezihambisanayo, le ndlela ethuthukisiwe yandisa kakhulu isikhathi sokuphila kwezingxenye, ihlinzeka ngesiqinisekiso sesayensi sokulondolozwa kwefa kanye nokuphepha kwengqalasizinda enkulu.
Isikhathi sokuthunyelwe: Novemba-05-2025