Emikhakheni yokwakha kanye nemboni, i-granite isetshenziswa kabanzi ngenxa yobunzima bayo, ukuminyana, ukumelana ne-asidi kanye ne-alkali, kanye nokumelana nesimo sezulu. Okulandelayo ukuhlaziywa okuningiliziwe kwakho kokuthi umbala we-granite uyawuthinta yini ukuminyana kwayo nokuthi ungayikhetha kanjani i-granite ezinzile kakhulu emkhakheni wemishini yokunemba kwezimboni.
Ubudlelwano phakathi kombala kanye nobuningi be-granite
I-granite yakhiwe kakhulu ngamaminerali afana ne-quartz, i-feldspar kanye ne-mica, futhi umbala wayo uncike ezinhlotsheni kanye nobuningi bezingxenye eziqukethe. Ngokombono wobuningi, kukhona ukuxhumana okuthile phakathi kombala kanye nobuningi, kodwa akuyona ubudlelwano obuqondile bembangela.
Umehluko wokwakheka kwamaminerali: Umbala okhanyayo gI-ranite, efana nomhlophe ompunga kanye nobomvu benyama, ivame ukucebile nge-quartz kanye ne-feldspar. Lawa maminerali amabili anobuningi obuphezulu nobuzinzile. Ubuningi be-quartz busukela ku-2.6 kuya ku-2.7g/cm³, kanti obe-feldspar buhluka kusuka ku-2.5 kuya ku-2.8g/cm³ kuye ngohlobo. Ubuningi bamaminerali anjalo buholela ekuthambekeleni okuphezulu kobuningi be-granite enombala okhanyayo. I-granite emnyama, njengomnyama noluhlaza, ivame ukuqukethe inani eliphakeme lamaminerali ensimbi kanye ne-magnesium kanye namaminerali amnyama njenge-amphibole kanye ne-biotite. Ubuningi be-amphibole bucishe bube ngu-3.0-3.4g /cm³, kanti obe-biotite bucishe bube ngu-2.7-3.1g /cm³. Kodwa-ke, lapho i-granite emnyama iqukethe izakhi zensimbi ezisindayo (njengensimbi kanye ne-manganese), ubuningi bayo buzokhula.
Izinga lokwakheka kwekristalu kanye nethonya lesakhiwo: Umbala ngezinye izikhathi ungabonisa umehluko ezingeni lokwakheka kwekristalu kanye nesakhiwo segranite. Igranite enezinga eliphezulu lokwakheka kwekristalu kanye nesakhiwo esiminyene inombala ofanayo futhi ozinzile, futhi ubuningi bayo buphakeme kakhulu. Lokhu kungenxa yokuthi izinhlayiya zamaminerali zihlelwe eduze futhi zinesisindo esikhulu ngeyunithi ngayinye. Igranite enekristalu embi kanye nesakhiwo esikhululekile ingaba nemibala enemibala egqamile nengalingani, izikhala eziningi zangaphakathi, kanye nobukhulu obuphansi kakhulu.
Ukukhetha i-granite emkhakheni wemishini yokunemba kwezimboni
Emkhakheni wemishini yokunemba kwezimboni, izidingo zokuzinza ze-granite ziphakeme kakhulu. Ngokuvamile, i-granite efanele ikhethwa ngokucabangela ngokuphelele izici eziningi:
Ukwakheka kwamaminerali kanye nesakhiwo: I-Granite enokuqukethwe okuphezulu kanye nokusatshalaliswa okufanayo kwe-quartz kanye ne-feldspar kuyathandwa. Lolu hlobo lwe-granite lunesakhiwo sangaphakathi esizinzile, esinganciphisa ngempumelelo ukuguquguquka okubangelwa izinguquko ekucindezelekeni kwangaphakathi futhi siqinisekise ukusebenza okuzinzile kwesikhathi eside kwemishini. Okwamanje, i-granite enezinga eliphezulu lokukristala, izinhlayiya ezincane nezifanayo, kanye nesakhiwo esiminyene kuyisinqumo esikhethwayo. Ngesikhathi sokusetshenziswa isikhathi eside kanye nokusetshenziswa kwamandla, ingagcina ukunemba kangcono futhi inciphise umthelela wezinguquko zayo zesakhiwo ekunembeni kwemishini.
Izinkomba zokusebenza ngokomzimba: I-granite iyadingeka ukuthi ibe nesilinganiso sokumuncwa kwamanzi esiphansi, ngokuvamile esingaphansi kuka-0.5%, ukuvimbela izinkinga ezifana nokwanda kwevolumu kanye nokwehla kwamandla okubangelwa ukumuncwa kwamanzi, okungathinta ukunemba kwemishini. I-coefficient yokwanda kokushisa kufanele ibe phansi. Okungcono kakhulu, kufanele ibe ngaphansi kuka-8×10⁻⁶/℃ ukunciphisa izinguquko zobukhulu ezibangelwa ukushintshashintsha kwezinga lokushisa. Ngaphezu kwalokho, amandla okucindezela kufanele abe phezulu, ngokuvamile abe ngaphezu kuka-150MPa, ukuqinisekisa ukuthi ingakwazi ukumelana namandla ahlukahlukene ngesikhathi sokusebenza kwemishini.
Izinhlobo ezivamile ezinconywayo: I-Jinan Green Granite, i-Indian Black, i-South African Black kanye nezinye i-granite emnyama, ezinombala omnyama kakhulu, eziqinile ngesakhiwo, zine-coefficient ephansi yokwanda kokushisa kanye nokumelana okuhle nokuguguleka, futhi zifanelekela izisekelo zemishini yokuhlola ye-optical enezidingo eziphakeme kakhulu zokunemba nokuzinza. I-granite emhlophe ye-sesame, enombala okhanyayo, izinhlayiya zamaminerali ezifanayo, kanye nobunzima obukhulu namandla, isetshenziswa kabanzi emishinini yokukhiqiza ama-chip kagesi futhi ingahlangabezana nezidingo zokubeka kahle kakhulu kanye nokusebenza okuzinzile kwesikhathi eside kwemishini.
Ekuphetheni, nakuba kukhona ukuhlobana okuthile phakathi kombala kanye nobuningi be-granite, lapho ukhetha i-granite emkhakheni wemishini yokunemba kwezimboni, kubalulekile ukucabangela ngokuphelele izici eziningi njengokwakheka kwamaminerali, isakhiwo, kanye nezakhiwo zomzimba ukuqinisekisa ukunemba okuphezulu kanye nokuzinza kwemishini.
Isikhathi sokuthunyelwe: Meyi-19-2025