何(he)為(wei)電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)元(yuan)件(jian)?簡單的(de)(de)(de)借助其功能(neng)來說就(jiu)是將電(dian)(dian)(dian)(dian)能(neng)轉(zhuan)化成熱(re)(re)(re)(re)(re)能(neng)電(dian)(dian)(dian)(dian)能(neng)元(yuan)器(qi)件(jian)，是電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)器(qi)的(de)(de)(de)心臟。電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)元(yuan)件(jian)是實現電(dian)(dian)(dian)(dian)能(neng)向熱(re)(re)(re)(re)(re)能(neng)轉(zhuan)化的(de)(de)(de)一類元(yuan)件(jian)。電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)元(yuan)件(jian)從問世的(de)(de)(de)那天起(qi)，就(jiu)在人們(men)的(de)(de)(de)生產生活中擔(dan)任(ren)重要的(de)(de)(de)角色電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)元(yuan)件(jian)產品類別繁多(duo)(duo)，常(chang)規(gui)品種(zhong)，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)合(he)金(jin)，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)材料，微波(bo)加(jia)熱(re)(re)(re)(re)(re)裝(zhuang)置，電(dian)(dian)(dian)(dian)磁(ci)感應熱(re)(re)(re)(re)(re)裝(zhuang)置，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)線，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)板，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)帶，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)纜，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)盤，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)偶，電(dian)(dian)(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)圈，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)棒，電(dian)(dian)(dian)(dian)伴熱(re)(re)(re)(re)(re)帶，電(dian)(dian)(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)芯，云母(mu)發熱(re)(re)(re)(re)(re)片(pian)，陶瓷發熱(re)(re)(re)(re)(re)片(pian)，鎢鉬(mu)(mu)制品，硅碳(tan)棒，鉬(mu)(mu)粉(fen)，鎢條，電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)絲(si)，網帶，還有許多(duo)(duo)電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)元(yuan)件(jian)品種(zhong)。
電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)絲(si)(si)(si)(si)是早出(chu)現(xian)的(de)(de)電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)元(yuan)件，它(ta)是以電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)為基本工作原理(li)來(lai)實現(xian)能(neng)量轉化的(de)(de)。電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)絲(si)(si)(si)(si)是最傳統電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)元(yuan)件，但(dan)至今(jin)尚未被替代，現(xian)在(zai)(zai)電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)絲(si)(si)(si)(si)依(yi)然在(zai)(zai)各個領域，特別是工業生(sheng)產及實驗室被廣泛使用。電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)絲(si)(si)(si)(si)多被采用鐵(tie)鉻(ge)(ge)鋁(lv)合(he)(he)金和鉻(ge)(ge)合(he)(he)金，貼(tie)個鋁(lv)合(he)(he)金最高溫度已經達到1400攝氏度。電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)絲(si)(si)(si)(si)的(de)(de)基礎上(shang)，發展出(chu)來(lai)電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)棒、電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re) 盤、電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)片等(deng)電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)元(yuan)件，但(dan)它(ta)們(men)的(de)(de)本質依(yi)然是電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)絲(si)(si)(si)(si)，其原理(li)也脫(tuo)離(li)不了電(dian)(dian)(dian)熱(re)(re)(re)(re)(re)(re)。
電(dian)(dian)熱(re)絲優點是(shi)加熱(re)溫度和耐熱(re)溫度高，技術成熟、易于(yu)制造(zao)且方(fang)便配套應用(yong)于(yu)各種電(dian)(dian)熱(re)設備。電(dian)(dian)熱(re)絲缺點是(shi)它的能量(liang)轉(zhuan)換(huan)率(lv)較低，發熱(re)過程中伴隨著發光過程，因(yin)此電(dian)(dian)能轉(zhuan)換(huan)率(lv)只能達(da)到60%到70%
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