Fuses yog ib qho tseem ceeb ntawm ntau yam khoom siv hluav taws xob thiab tshuab. Lawv tiv thaiv lub circuitry los ntawm overloading thiab luv luv-circuiting los ntawm melting thiab rhuav cov hluav taws xob kev twb kev txuas. Lub melting point ntawm lub fuse yog qhov tseem ceeb rau nws cov kev ua tau zoo. Yog li, dab tsi yog qhov tseem ceeb uas txiav txim siab qhov melting point ntawm fuses?
Ua ntej, muaj pes tsawg leeg ntawm cov khoom siv fuse ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab nws cov ntsiab lus melting. Feem ntau, fuses yog ua los ntawm cov hlau xws li txhuas, tin, tooj liab, lossis txhuas. Lub melting point ntawm cov hlau no txawv, nrog cov txhuas muaj qhov qis tshaj plaws melting point thiab tooj liab muaj qhov siab tshaj plaws melting point. Yog li ntawd, fuses ua los ntawm tooj liab muaj qhov sib txawv siab dua li cov hlau lead.
Qhov thib ob, qhov loj thiab cov duab ntawm lub fuse kuj muaj kev cuam tshuam rau lub melting point. Qhov loj dua lub fuse, cov khoom siv ntau dua, thiab nws yuav siv sij hawm ntev dua kom sov thiab yaj. Ib yam li ntawd, ib lub fuse nrog cov hlau tuab muaj qhov ua haujlwm ntau dua thiab siv sijhawm ntev dua kom sov, ua rau lub ntsiab lus melting ntau dua.
Thib peb, qhov kub thiab txias nyob rau hauv uas lub fuse ua haujlwm cuam tshuam rau nws qhov melting point. Nyob rau hauv qhov kub thiab txias, cov khoom siv fuse softens thiab tsis muaj zog, txo nws cov ntsiab lus melting. Ib yam li ntawd, nyob rau hauv qhov kub tsis tshua muaj kub, cov khoom siv fuse yuav nyuaj thiab nkig, ua rau nws cov ntsiab lus melting.
Thaum kawg, qhov tam sim no dhau los ntawm lub fuse kuj tseem ceeb heev rau nws qhov melting point. Qhov siab dua qhov tam sim no, qhov kub ntau yog generated, ua rau qis melting point. Yog li ntawd, fuses raug ntsuas raws li lawv lub peev xwm nqa tam sim no.
Nyob rau hauv xaus, lub melting point ntawm ib tug fuse yog txiav txim los ntawm ntau yam xws li muaj pes tsawg leeg ntawm cov khoom fuse, qhov loj thiab cov duab, ambient kub, thiab tam sim no. Kev nkag siab txog cov xwm txheej no yog qhov tseem ceeb rau kev xaiv lub fuse zoo rau daim ntawv thov hluav taws xob kom ntseeg tau tias kev ua haujlwm zoo thiab kev nyab xeeb.