Ukuqeda iphuzu - at wonke umuntu

Njengoba yaziwa, noma iyiphi impahla kungenzeka gaseous, okuqinile futhi woketshezi, ungakwazi ukwedlulisela esimweni esisodwa kuya kwesinye. Engingakusho nje kokukhumbula amanzi. Ngokuvamile okushisa esihle uketshezi at negative - okuqinile, futhi ngezinye izindawo ezinezinga lokushisa eliphakeme, sikhule size sibe umusi, isb esimweni gaseous. Ushintsho lokusuka okuqinile esimweni liquid ngokuthi ukuncibilika izinga lokushisa lapho le nqubo kwenzeka - ukuma.

Kanjani inqubo encibilika? Uma sicabanga metal, sithola ukuthi isimo sawo kuyinto ngehele crystal zama-athomu ukuthi ahlelwe ethile ukuze isihlobo komunye nomunye, okwenza iyehla iyenyuka encane. Ngezinye Ekwamukeleni amandla zangaphandle noma ukushisa amandla ukuzulazula kwama-athomu ukwanda umzimba, futhi beqala oscillate nge amplitude enkulu. Lapho izinga lokushisa komzimba nokugeleza izinga lokushisa ukuncibilika ketshezi phathelana lingana, inqubo nolokubhujiswa isakhiwo metal iqala, okusho ukuthi, inqubo ukuncibilika.

Nokho, lokho waqala inqubo ukuncibilika akusho ukuthi izoqhubeka kwayona. Ukuze silondoloze kubalulekile ngokuqhubekayo ukuphakela ukushisa ukuthi usuke udlale ngesikhathi ku ukubhujiswa izibopho eheleni crystal.

Njalo ababaluleke izici zabo. Futhi metal ngamunye has ukuncibilika lokushisa lalo. Okunqumayo eheleni crystal kanye nokwakheka ndaba. Ukuze izinto okumsulwa izinga lokushisa wedwa, Alloys, ehlanganisa metal eziningana - kwenye. Ngokwesibonelo, iphuzu yensimbi ukuncibilika 1100-1130 ° C. ibanga okunjalo yamanani kunqunywa yokuthi okuqukethwe amanyela kule metal washintsha, ngaphezu kwalokho, akhiwa amalahle oxides refractory. Banezinhliziyo ukuma kunakunoma yensimbi.

Ukuze zethusi lokushisa 1084 ° C, i-zinc - 419 ° C. Lokuncibilika zethusi kokuba ingxubevange zethusi zinc - mayelana 1000 ° C. i value okunjalo silinganisiwe lokushisa kunqunywa yokuthi incike okuqukethwe iphesenti izingxenye. Uma indlela yokwakheka ingxubevange liyithusi ngaphezulu, lokhu kuzoholela yokuthi ukuncibilika lokushisa ingxubevange kuyoba ephakeme uma ukhethe ngaphezulu - ngezansi.

Kufanele kuqashelwe ukuthi izinga lokushisa lapho izidakamizwa is bhotela, akuxhomekile nje kuphela esimweni ebumsulweni nasebunyeni, kodwa futhi phezu kwengcindezi. Nge ingcindezi enkulu, it kwandisa esinjengalesi lapho ingcindezi incipha.

Njengoba sekushiwo, igcwale amanzi njalo ukushisa okokufaka kuyadingeka. Ekusebenteni, kubonakala sengathi kukhona Ukushisa njalo indaba, kodwa izinga lokubanda alushintshi. Futhi kuphela emva ethile edliwe ukushisa, ngokuthi ngesikhathi sokushisa kwemini Fusion, kuzokwandisa ukwandisa izinga lokushisa, kodwa kungezona lezo ketshezi.

Kukhona esinye isici e ukuncibilika izinsimbi. Uma ukunqanda supply of ukushisa, ukusebenza ukuncibilika wayeka futhi inqubo reverse - kwensimbi ketshezi ingena isimo okuqinile. Le nqubo ibizwa ngokuthi crystallization. On lwaluyophola metal liquid niyenza okuqinile ikhishwe esilinganayo ukushisa okuyinto washisa ngesikhathi ukuncibilika yayo.

Indima Fusion ngokwemvelo, isayensi nobuchwepheshe kunzima overestimate. Ngokusebenzisa le nqubo, singaluthola insimbi noma Alloys nge izakhiwo oyifunayo. Cishe wonke impucuko womuntu kusekelwe insimbi Alloys yayo, futhi kungakho phezu constants ngokomzimba ezifana lokuncibilika. Phela, cishe akukho umkhakha eyodwa okuyinto asiqediwe metal.

Ngakho sabuka lokho lokushisa ukuncibilika, kunqunywa ukuthi kuncike, futhi wachaza inqubo ukuncibilika. Isihloko futhi inikeza incazelo crystallization izinsimbi.