Yintoni i-coefficient yokwandiswa kwe-granite? Izinzile kangakanani iqondo lobushushu?

I-coefficient yokwandisa i-linear ye-granite idla ngokujikeleza i-5.5-7.5x10 - ⁶/℃. Nangona kunjalo, iintlobo ezahlukeneyo zegranite, i-coefficient yokwandisa inokuba yahluke kancinane.
Igranite inozinzo olulungileyo lobushushu, ibonakaliswa ikakhulu kwezi nkalo zilandelayo:
I-deformation encinci ye-thermal: ngenxa ye-coefficient yayo ephantsi yokwandisa, i-thermal deformation ye-granite incinci xa ubushushu buguquka. Oku kuvumela amacandelo e-granite ukuba agcine ubungakanani obuzinzile kunye nokumila kwiindawo ezahlukeneyo zokushisa, ezihambelana nokuqinisekisa ukuchaneka kwezixhobo ezichanekileyo. Ngokomzekelo, kwizixhobo zokulinganisa ezichanekileyo, ukusetyenziswa kwe-granite njengesiseko okanye i-workbench, nangona iqondo lokushisa eliphantsi linokuguquguquka okuthile, ukuguqulwa kwe-thermal kunokulawulwa kuluhlu oluncinci, ukwenzela ukuba kuqinisekiswe ukuchaneka kweziphumo zokulinganisa.
Ukuxhathisa ukothuka kwe-thermal: Igranite inokumelana nenqanaba elithile lokutshintsha kobushushu obukhawulezayo ngaphandle kokuqhekeka okucacileyo okanye umonakalo. Oku kungenxa yokuba ine-conductivity efanelekileyo ye-thermal kunye nomthamo wokushisa, onokudlulisela ubushushu ngokukhawuleza kwaye ngokulinganayo xa ubushushu butshintsha, ukunciphisa uxinzelelo lwangaphakathi lwe-thermal. Ngokomzekelo, kwezinye iindawo zemveliso yemizi-mveliso, xa isixhobo siqala ngokukhawuleza okanye siyeke ukusebenza, ubushushu buya kutshintsha ngokukhawuleza, kwaye amacandelo e-granite anokuziqhelanisa kangcono nale ntlupheko ye-thermal kunye nokugcina ukuzinza komsebenzi wabo.
Uzinzo oluhle lwexesha elide: Emva kwexesha elide lokuguga kwendalo kunye nesenzo se-geological, uxinzelelo lwangaphakathi lwe-granite luye lwakhululwa ngokusisiseko, kwaye isakhiwo sizinzile. Kwinkqubo yokusetyenziswa kwexesha elide, nangona emva kokutshintsha komjikelezo weqondo lokushisa amaninzi, isakhiwo sayo sangaphakathi akulula ukutshintsha, sinokuqhubeka nokugcina ukuzinza kweqondo lokushisa, ukubonelela ngenkxaso ethembekileyo yezixhobo ezichanekileyo.
Xa kuthelekiswa nezinye izinto eziqhelekileyo, ukuzinza kwe-thermal ye-granite kwinqanaba eliphezulu, oku kulandelayo kukuthelekisa phakathi kwe-granite kunye nezixhobo zetsimbi, izinto ze-ceramic, izinto ezidibeneyo ngokwemiqathango yokuqina kwe-thermal:
   Xa kuthelekiswa nezinto zentsimbi:

I-coefficient yokwandiswa kwe-thermal yezinto eziqhelekileyo zetsimbi zinkulu. Ngokomzekelo, i-coefficient yokwandisa i-linear ye-carbon steel eqhelekileyo imalunga ne-10-12x10 - ⁶/℃, kunye ne-coefficient yokwandisa i-alloy ye-aluminium malunga ne-20-25x10 - ⁶/℃, ephezulu kakhulu kune-granite. Oku kuthetha ukuba xa ubushushu butshintsha, ubukhulu bezinto zetsimbi buguquka kakhulu, kwaye kulula ukuvelisa uxinzelelo olukhulu lwangaphakathi ngenxa yokwandiswa kwe-thermal kunye nokunciphisa okubandayo, ngaloo ndlela kuchaphazela ukuchaneka nokuzinza kwayo. Ubungakanani begranite buguquka buncinci xa ubushushu buguquka, obunokugcina ngcono ubume bangaphambili kunye nokuchaneka. I-thermal conductivity yezixhobo zetsimbi ngokuqhelekileyo iphezulu, kwaye kwinkqubo yokufudumeza ngokukhawuleza okanye ukupholisa, ukushisa kuya kuqhutywa ngokukhawuleza, okubangelwa ukuhluka okukhulu kweqondo lokushisa phakathi kwangaphakathi kunye nomgangatho wezinto eziphathekayo, okubangelwa uxinzelelo lwe-thermal. Ngokwahlukileyo, i-thermal conductivity ye-granite iphantsi, kwaye ukuqhutyelwa kokushisa kuncinci, okunokunciphisa isizukulwana soxinzelelo lwe-thermal ukuya kwinqanaba elithile kwaye lubonise ukuzinza okungcono kwe-thermal.

Xa kuthelekiswa nezinto zeceramic:

I-coefficient yokwandisa i-thermal yezinye izinto eziphezulu ze-ceramics zinokuba ziphantsi kakhulu, njenge-silicon nitride ceramics, i-coefficient yayo yokwandisa i-linear malunga ne-2.5-3.5x10 - ⁶/℃, ephantsi kune-granite, kwaye ineenzuzo ezithile ekuzinzeni kwe-thermal. Nangona kunjalo, izinto ze-ceramic zidla ngokuba brittle, ukuxhathisa ukothuka kwe-thermal kubi kakhulu, kwaye iintanda okanye ukuqhekeka kulula ukwenzeka xa ubushushu buguquka kabukhali. Nangona i-coefficient yokwandisa i-thermal ye-granite iphezulu kancinane kunezinye iikeramics ezikhethekileyo, inokuqina okulungileyo kunye nokumelana nokutshatyalaliswa kwe-thermal, inokumelana neqondo elithile lokuguquka kweqondo lokushisa, kwizicelo ezisebenzayo, kwiindawo ezininzi zokutshintsha ubushushu obugqithisileyo, ukuzinza kwe-thermal yegranite kunokuhlangabezana neemfuno, kunye nokusebenza kwayo okubanzi kunokulinganisela, ixabiso liphantsi.

Xa kuthelekiswa nemathiriyeli edibeneyo:

Ezinye izinto ezidityanisiweyo eziphambili zinokufikelela kwi-coefficient ephantsi yokwandiswa kwe-thermal kunye nokuzinza okulungileyo kwe-thermal ngoyilo olufanelekileyo lokudityaniswa kwefayibha kunye ne-matrix. Ngokomzekelo, i-coefficient yokwandiswa kwe-thermal ye-carbon fiber reinforced composites inokulungelelaniswa ngokwesikhokelo kunye nomxholo wefiber, kwaye inokufikelela kumaxabiso aphantsi kakhulu kwezinye iindlela. Nangona kunjalo, inkqubo yokulungiselela izinto ezidibeneyo inzima kwaye ixabiso liphezulu. Njengezinto zendalo, i-granite ayifuni inkqubo yokulungiselela eyinkimbinkimbi, kwaye ixabiso liphantsi. Nangona kungenakuba kuhle njengezinye izinto ezihlanganisiweyo eziphezulu kwezinye izibonakaliso zokuzinza kwe-thermal, ineenzuzo ngokubhekiselele ekusebenzeni kweendleko, ngoko isetyenziswa ngokubanzi kwizicelo ezininzi eziqhelekileyo ezineemfuno ezithile zokuzinza kwe-thermal. Ngawaphi amashishini asetyenziselwa amacandelo e-granite, ukuzinza kobushushu kuyingqwalasela ephambili? Ukubonelela ngedatha ethile yovavanyo okanye iimeko zegranite uzinzo lwe-thermal. Yintoni umahluko phakathi kweentlobo ezahlukeneyo zokuzinza kwe-granite thermal?