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鎧裝熱電阻的特點以及結構與分類

更新時間:2023-06-17   點擊次數:977次

1.鎧裝熱電阻的特點
鎧裝熱電阻是在裝(zhuang)(zhuang)配熱(re)(re)(re)(re)(re)電(dian)(dian)阻的(de)(de)基礎上(shang)借鑒鎧(kai)(kai)(kai)裝(zhuang)(zhuang)熱(re)(re)(re)(re)(re)電(dian)(dian)偶的(de)(de)制造技(ji)術發展(zhan)起來(lai)的(de)(de)熱(re)(re)(re)(re)(re)電(dian)(dian)阻新品種,相對于(yu)裝(zhuang)(zhuang)配熱(re)(re)(re)(re)(re)電(dian)(dian)阻具(ju)有(you)直徑小、能彎曲、熱(re)(re)(re)(re)(re)響應時(shi)間快(kuai),安(an)裝(zhuang)(zhuang)使(shi)用(yong)方(fang)便等特點。由(you)于(yu)熱(re)(re)(re)(re)(re)電(dian)(dian)阻沒有(you)耐高溫腐蝕的(de)(de)要求,用(yong)不銹鋼作(zuo)(zuo)保護管(guan)的(de)(de)鎧(kai)(kai)(kai)裝(zhuang)(zhuang)熱(re)(re)(re)(re)(re)電(dian)(dian)阻可以代替原裝(zhuang)(zhuang)配熱(re)(re)(re)(re)(re)電(dian)(dian)阻,適合批量生產,成(cheng)本低,而(er)且(qie)更耐震(zhen)動、密(mi)封性好、使(shi)用(yong)壽命(ming)長。近年(nian)來(lai)越來(lai)越多(duo)的(de)(de)廠家(jia)采用(yong)鎧(kai)(kai)(kai)裝(zhuang)(zhuang)熱(re)(re)(re)(re)(re)電(dian)(dian)阻作(zuo)(zuo)為裝(zhuang)(zhuang)配熱(re)(re)(re)(re)(re)電(dian)(dian)阻的(de)(de)芯子(zi)來(lai)改造傳(chuan)統(tong)的(de)(de)裝(zhuang)(zhuang)配熱(re)(re)(re)(re)(re)電(dian)(dian)阻。隨著技(ji)術的(de)(de)發展(zhan)和人們使(shi)用(yong)觀念(nian)的(de)(de)進步,裝(zhuang)(zhuang)配熱(re)(re)(re)(re)(re)電(dian)(dian)阻最終將(jiang)被鎧(kai)(kai)(kai)裝(zhuang)(zhuang)熱(re)(re)(re)(re)(re)電(dian)(dian)阻取代。
鎧裝熱電阻的制(zhi)造,首先是(shi)將(jiang)(jiang)熱(re)電阻引線(一(yi)般(ban)(ban)為(wei)純鎳絲)穿(chuan)入氧化(hua)鎂絕緣材料中(zhong),再一(yi)同穿(chuan)入不銹鋼(gang)保(bao)護管中(zhong),經(jing)過(guo)多次拉拔縮徑(jing)退(tui)火(huo)而形成鎧(kai)(kai)裝(zhuang)熱(re)電阻引線(相當于鎧(kai)(kai)裝(zhuang)熱(re)電偶材料);然后將(jiang)(jiang)熱(re)電阻感溫元(yuan)件與已(yi)經(jing)下料成需(xu)要(yao)長度并剝出(chu)引線頭(tou)的鎧(kai)(kai)裝(zhuang)熱(re)電阻引線對(dui)接(jie)焊接(jie);最后與制(zhi)作鎧(kai)(kai)裝(zhuang)熱(re)電偶的方(fang)法類似完(wan)成測(ce)量端、接(jie)線端和安裝(zhuang)裝(zhuang)置的制(zhi)作。由于鎧(kai)(kai)裝(zhuang)熱(re)電阻引線電阻率較(jiao)大,所(suo)以沒(mei)有(you)兩(liang)線制(zhi)引線,一(yi)般(ban)(ban)為(wei)三線制(zhi)引線,四線制(zhi)需(xu)要(yao)特別注(zhu)明。鎧(kai)(kai)裝(zhuang)銅電阻由于測(ce)溫較(jiao)低,可(ke)用有(you)機(ji)材料絕緣代替無機(ji)氧化(hua)鎂絕緣,制(zhi)作工(gong)藝(yi)與鎧(kai)(kai)裝(zhuang)鉑電阻可(ke)以不同。
2. 鎧裝熱電阻的(de)結構與分類
與熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)偶分(fen)(fen)類一(yi)樣,熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)按(an)照結構分(fen)(fen)為裝(zhuang)配熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、鎧裝(zhuang)熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)兩類;按(an)測溫元件鉑(bo)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、銅電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu),以及非標準化(hua)的鐵電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、鎳電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、銦電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、錳電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、碳(tan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)等;按(an)分(fen)(fen)度號分(fen)(fen)為Pt100、Pt10、Cu50、Cu100,以及Pt1000、Pt800、Pt500等標稱電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)很大分(fen)(fen)辨率很高的鉑(bo)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu);根據用(yong)途分(fen)(fen)為標準鉑(bo)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、耐(nai)腐(fu)蝕熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、耐(nai)磨熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、端面熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)、電(dian)(dian)(dian)(dian)(dian)(dian)機專(zhuan)用(yong)熱(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)等等。

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