Alumino thermite yog txheej txheem ntawm kev rho tawm cov hlau los ntawm kev txo cov hlau oxide los ua hlau siv cov hmoov txhuas, cov txhuas ua raws li tus neeg sawv cev txo. Nws yog cov tshuaj tiv thaiv exothermic uas tso cov cua sov ntau.
txhais tau li cas los ntawm txheej txheem alumino thermite?
: txheej txheem ntawm kev tsim cov cua sov thiab muaj zog tshuaj txo qis los ntawm oxidizing finely faib txhuas nrog oxygen coj los ntawm lwm cov hlau, cov hlau no yog li txo los ntawm nws cov oxide (raws li molten hlau. yog tau los ntawm hlau oxide nyob rau hauv vuam los ntawm cov txheej txheem Thermit)
Puas yog cov txheej txheem Aluminothermic yog cov tshuaj tiv thaiv redox?
Ib lub thermite tiag tiag yog pyrotechnic uas yog kev sib xyaw ntawm cov hlau oxide thiab cov hmoov hlau. Thaum qhov sib xyaw thermite no tau muab cua sov, ces qhov sib xyaw thermite tau dhau los ua qhov exothermic oxidation -txo cov tshuaj tiv thaivpiv txwv li cov tshuaj tiv thaiv redox.
Vim li cas cov txheej txheem Aluminothermic hu ua thermite txheej txheem?
Aluminothermic cov tshuaj tiv thaiv yog exothermic tshuaj tiv thaiv siv txhuas ua tus txo tus neeg sawv cev ntawm qhov kub thiab txias . … Qhov piv txwv tseem ceeb tshaj plaws yog cov tshuaj tiv thaiv thermite ntawm cov hlau oxides thiab txhuas los tsim cov hlau nws tus kheej: Fe2O3 + 2 Al → 2 Fe + Al2O.
Puas yog txhuas siv hauv cov txheej txheem thermite?
In thermite welding, aluminium hmoov yog siv nrog rau ferric oxide. Aluminium muaj ntau affinity rau oxygen thiab nws txoferric oxide rau elemental hlau thaum lub sij hawm vuam thiab kuj ua rau kub heev. Lub molten elemental hlau yog li tsim yuav kaw qhov tawg kom muaj kev sib raug zoo.
