Emkhakheni wokukhiqiza okunembayo kanye nokuhlolwa kwekhwalithi, umshini wokulinganisa onezinhlanganisela ezintathu uyisisetshenziswa esiyinhloko sokuqinisekisa ukunemba komkhiqizo. Ukunemba kwedatha yayo yokulinganisa kuthinta ngokuqondile ikhwalithi yomkhiqizo nokulungiselelwa kwezinqubo zokukhiqiza. Kodwa-ke, iphutha le-thermal deformation elibangelwa ukushintsha kwezinga lokushisa ngesikhathi sokusebenza kwemishini bekulokhu kuyinkinga enzima ehlupha imboni. Isisekelo se-granite, esinezici zayo ezibonakalayo ezivelele kanye nezinzuzo zesakhiwo, sesiyisihluthulelo sokuqeda iphutha lokuguquguquka kokushisa komshini wokulinganisa ohlanganisa ezintathu. .
Izimbangela nezingozi zamaphutha okushintsha ukushisa emishinini yokulinganisa emithathu
Lapho umshini wokulinganisa onezinhlaka ezintathu usebenza, ukugijima kwenjini, ukungqubuzana okukhiqiza ukushisa, kanye nokuguquguquka kwezinga lokushisa lendawo ezungezile konke kungabangela izinguquko kuzinga lokushisa lempahla. Isisekelo somshini wokulinganisa owenziwe ngezinto zensimbi zendabuko sine-coefficient ephakeme kakhulu yokwandisa okushisayo. Isibonelo, i-coefficient yokunwetshwa okushisayo kwensimbi evamile icishe ibe ngu-11×10⁻⁶/℃. Lapho izinga lokushisa likhuphuka ngo-10℃, isisekelo sensimbi esingamamitha angu-1 ubude sizonwebeka ngo-110μm. Lokhu kuguqulwa okuncane kuzodluliselwa ku-probe yokulinganisa ngesakhiwo somshini, okubangela ukuthi indawo yokulinganisa ishintshe futhi ekugcineni kubangele amaphutha kudatha yokulinganisa. Ekuhlolweni kwezingxenye ezinembayo, njengama-aero engine blade nezibunzi ezinembayo, iphutha elingu-0.01mm lingaholela ekungavumelani komkhiqizo. Amaphutha okushintsha i-thermal athinta kakhulu ukuthembeka kokulinganisa nokusebenza kahle kokukhiqiza. .
Izinzuzo zesici sezisekelo ze-granite
I-coefficient ephansi kakhulu yokunwetshwa kwe-thermal, ireferensi yokulinganisa ezinzile
I-Granite idwala lemvelo elivuthayo elakhiwe ngezinqubo ze-geological phakathi namakhulu ezigidi zeminyaka. I-coefficient yayo yokunweba okushisayo iphansi kakhulu, ngokuvamile isukela ku-(4-8) ×10⁻⁶/℃, okuyi-1/3 kuphela kuya ku-1/2 yaleyo yezinto zensimbi. Lokhu kusho ukuthi ngaphansi kokuhluka okufanayo kwezinga lokushisa, ukushintshwa kosayizi wesisekelo se-granite kuncane kakhulu. Lapho izinga lokushisa elizungezile liguquguquka, isisekelo segwadle singagcina isimo sejiyomethri esizinzile, sinikeze ireferensi eqinile yesistimu yokuxhumanisa yomshini wokulinganisa, ukugwema ukuchezuka kwendawo yokuhlola okubangelwa ukuwohloka kwesisekelo, futhi kunciphise umthelela wamaphutha okushintsha okushisayo emiphumeleni yokulinganisa evela empandeni. .
Ukuqina okuphezulu kanye nesakhiwo esifanayo sicindezela ukudluliswa kwe-deformation
I-Granite iqinile ekuthunjweni, inesakhiwo sekristalu yamaminerali aminyene futhi afanayo, futhi ubulukhuni bayo bungafinyelela ku-6-7 esikalini se-Mohs. Lokhu kuqina okuphezulu kwenza isisekelo se-granite sibe mancane amathuba okuba singene ku-elastic deformation lapho sithwala isisindo somshini wokulinganisa ngokwawo namandla angaphandle phakathi nenqubo yokulinganisa. Ngisho nalapho ukusebenza kwemishini kukhiqiza ukudlidliza okuncane noma amandla angalingani endawo, isisekelo segwadle singacindezela ngempumelelo ukudluliswa nokusabalala kwe-deformation ngezici zayo ezifanayo zesakhiwo, kuvimbele ukuguquguquka ukuthi kwenziwe kusukela kusisekelo kuya kumshini wokulinganisa, ukuqinisekisa ukuthi i-probe yokulinganisa ihlala isesimweni sokusebenza esizinzile, futhi iqinisekise ukunemba kwedatha yokulinganisa. .
Ukusebenza kokudambisa okungokwemvelo, ukudlidliza okumuncayo nokushisa
I-microstructure eyingqayizivele ye-granite iyinikeza ukusebenza okuhle kakhulu kokudambisa. Lapho ukudlidliza okukhiqizwa ukusebenza komshini wokulinganisa kudluliselwa kusisekelo segwadle, izinhlayiya zamaminerali zangaphakathi nezimbotshana ezincane zingaguqula amandla okudlidliza abe amandla okushisa futhi ziwadle, zinciphise ngokushesha i-amplitude yokudlidliza. Phakathi naleso sikhathi, lesi sici sokudambisa futhi sisiza ukumunca ukushisa okukhiqizwa ukusebenza kwemishini, kubambezele izinga lokushisa lokunqwabelana kanye nokusabalalisa kwezinga lokushisa esisekelweni, futhi kuncishiswe ubungozi bokonakala kwendawo okushisayo okubangelwa ukusatshalaliswa kwezinga lokushisa okungalingani. Emisebenzini yokulinganisa eqhubekayo yesikhathi eside, ukusebenza okudambisayo kwesisekelo segwadle kunganciphisa kakhulu ukwenzeka kwamaphutha okuguqulwa kwe-thermal futhi kuthuthukise ukuqina kokulinganisa. .
Umthelela osebenzayo wokusetshenziswa kwesisekelo se-granite
Ngemva kokuba amabhizinisi amaningi akhiqizayo ethathele indawo isisekelo sensimbi somshini wokulinganisa ohlanganisa ezintathu ngesisekelo segwadle, ukunemba kokulinganisa kwaba ngcono kakhulu. Ngemva kokuthi inkampani ethile ekhiqiza izingxenye zezimoto yethule umshini wokulinganisa onezixhumanisi ezintathu ofakwe isisekelo segwadle, iphutha lokulinganisa lebhulokhi lenjini lehliswa lisuka ku-±15μm langempela laya phakathi kuka-±5μm. Ukuphindaphinda nokuphindaphindeka kwedatha yokulinganisa kwathuthukiswa kakhulu, ukwethembeka kokuhlolwa kwekhwalithi yomkhiqizo kwathuthukiswa, futhi izinga lokungahlulelwa kahle komkhiqizo elibangelwa amaphutha okulinganisa lehliswa ngempumelelo. Ithuthukise ukusebenza kahle kokukhiqiza kanye nokuncintisana kwamabhizinisi. .
Sengiphetha, isisekelo se-granite, esine-coefficient ephansi kakhulu yokunwetshwa okushisayo, ukuqina okuphezulu, ukwakheka okufanayo kanye nokusebenza okuhle kakhulu kokumanzisa, siqeda iphutha lokushintsha okushisayo komshini wokulinganisa ohlanganisa izingxenye ezintathu ukusuka kubukhulu obuhlukahlukene, ukuhlinzeka ngosekelo oluyisisekelo oluzinzile nonokwethenjelwa lokulinganisa okunembile, futhi isibe ingxenye ebalulekile esemqoka yemishini yesimanje yokukala izinga eliphezulu. .
Isikhathi sokuthumela: May-19-2025