Lub qhov cub hluav taws xob yog lub qhov cub hluav taws xob uas siv lub Joule cua sov uas tsim los ntawm cov hluav taws xob tam sim no los ntawm tus neeg xyuas pib ua nws qhov chaw kub.
Resistance furnaces siv hluav taws xob raws li lawv qhov chaw tshav kub, hloov hluav taws xob rau hauv hluav taws xob hluav taws xob los ntawm cov khoom cua sov kom sov cov hlau hauv qhov cub. Piv nrog rau cov nplaim taws, cov cua sov ua haujlwm muaj kev ua haujlwm siab dua, ncav cuag 50-80%, kev tswj hwm thermal yooj yim dua, kev ua haujlwm zoo dua, thiab lub cub tawg ntev dua. Lawv tsim nyog rau cua sov workpieces nrog cov kev xav tau nruj, tab sis lawv cov hluav taws xob siv tau siab.
Raws li txoj kev hloov tshav kub, cov hluav taws xob tiv thaiv tau muab faib ua cov hluav taws xob tiv thaiv hluav taws xob thiab cov hluav taws xob tiv thaiv hluav taws xob. Radiant resistance furnaces feem ntau siv hluav taws xob hloov hluav taws xob, nrog rau kev hloov hluav taws xob hloov pauv ua lub luag haujlwm tseem ceeb; convection kuj furnaces feem ntau siv convection hloov tshav kub thiab feem ntau hu ua huab cua - circulating resistance furnaces, cia siab rau cov cua kub rau cua sov, nrog rau qhov cub kub feem ntau qis dua 650℃.
Raws li txoj kev tsim hluav taws xob hluav taws xob, cov hluav taws xob tiv thaiv tau muab faib ua cov cua sov ncaj qha thiab cov cua kub tsis ncaj.
