電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)的(de)(de)(de)耗(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)情況是(shi)怎樣的(de)(de)(de)？工(gong)作(zuo)(zuo)(zuo)原理是(shi)把220V或(huo)者380V交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，整(zheng)(zheng)流(liu)(liu)后(hou)轉(zhuan)換成直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，再(zai)(zai)將直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)進行(xing)濾(lv)波，利用IGBT或(huo)者可控硅再(zai)(zai)將直(zhi)流(liu)(liu)變(bian)成交流(liu)(liu)，在(zai)感(gan)應(ying)線(xian)圈內(nei)產生高頻磁(ci)(ci)(ci)(ci)力線(xian)，是(shi)感(gan)應(ying)線(xian)圈內(nei)導體(ti)工(gong)件表面產生渦流(liu)(liu)依靠自生內(nei)阻(zu)發熱(re)(re)(re)(re)(re)(re)(re)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)工(gong)作(zuo)(zuo)(zuo)中(zhong)當(dang)溫(wen)度(du)(du)(du)沒達(da)(da)到設(she)置(zhi)的(de)(de)(de)溫(wen)度(du)(du)(du)時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)就會直(zhi)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)，當(dang)達(da)(da)到了(le)(le)預設(she)的(de)(de)(de)溫(wen)度(du)(du)(du)以后(hou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)就停止加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)了(le)(le)，也(ye)就不(bu)再(zai)(zai)耗(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)了(le)(le)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)每個(ge)小(xiao)時(shi)的(de)(de)(de)耗(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)多少與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)的(de)(de)(de)時(shi)間(jian)長短有(you)(you)關。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)剛工(gong)作(zuo)(zuo)(zuo)是(shi)滿(man)功(gong)率，加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)溫(wen)度(du)(du)(du)了(le)(le)，就是(shi)工(gong)作(zuo)(zuo)(zuo)會，停會。總體(ti)上(shang)來(lai)說(shuo)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)耗(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)是(shi)很小(xiao)的(de)(de)(de)，因為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)不(bu)是(shi)直(zhi)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)工(gong)作(zuo)(zuo)(zuo)的(de)(de)(de)，而是(shi)有(you)(you)間(jian)隙的(de)(de)(de)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)的(de)(de)(de)，先是(shi)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)，然后(hou)達(da)(da)到溫(wen)度(du)(du)(du)后(hou)就停止加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)，之(zhi)后(hou)就開(kai)始保溫(wen)工(gong)作(zuo)(zuo)(zuo)，直(zhi)到溫(wen)度(du)(du)(du)沒達(da)(da)到預設(she)的(de)(de)(de)溫(wen)度(du)(du)(du)后(hou)再(zai)(zai)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)下，整(zheng)(zheng)體(ti)上(shang)來(lai)講，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)并不(bu)是(shi)直(zhi)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)耗(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)，所以也(ye)是(shi)比較省電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)個(ge)原因。同時(shi)因為料筒上(shang)還包有(you)(you)層保溫(wen)棉，能(neng)起到保溫(wen)和隔熱(re)(re)(re)(re)(re)(re)(re)的(de)(de)(de)效果，那么(me)(me)熱(re)(re)(re)(re)(re)(re)(re)量(liang)就不(bu)會損失掉(diao)了(le)(le)，那么(me)(me)能(neng)夠持(chi)續恒(heng)溫(wen)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)的(de)(de)(de)時(shi)間(jian)就越長了(le)(le)。耗(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)也(ye)就越小(xiao)了(le)(le)。通過上(shang)述對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)感(gan)應(ying)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)改造時(shi)所配功(gong)率的(de)(de)(de)介(jie)紹，我們可以了(le)(le)解電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)的(de)(de)(de)時(shi)間(jian)越短那么(me)(me)耗(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)就越小(xiao)，反之(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)器(qi)(qi)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)(re)(re)(re)的(de)(de)(de)時(shi)間(jian)越長，耗(hao)(hao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)就越大。

如何選擇電(dian)磁加熱器(qi)保溫材料？

1、根(gen)據(ju)材料(liao)的(de)耐溫(wen)等(deng)，選擇耐溫(wen)比(bi)發熱體表面的(de)加熱溫(wen)度高至少300度的(de)保溫(wen)材料(liao)。

2、根據(ju)電(dian)磁加熱(re)控制器線圈布置(zhi)的(de)面積以及線圈與發熱(re)體(ti)的(de)距離，選擇(ze)合(he)適(shi)導熱(re)系數的(de)保(bao)溫(wen)材料。

3、根據線圈成型要(yao)求(qiu)，選擇不同(tong)致密性和硬(ying)度的保溫材(cai)料。

4、根據現(xian)場的(de)施工條件，選(xuan)擇適合的(de)保溫(wen)材料。

5、重要(yao)的(de)條原則，就是要(yao)保證經過(guo)上述選擇后，保溫(wen)棉表面的(de)溫(wen)度在(zai)工作過(guo)程中，盡可能低。高溫(wen)場合至少要(yao)保持在(zai)100度以下。

電磁加熱器裝置(zhi)后發現(xian)溫(wen)(wen)度(du)(du)超(chao)溫(wen)(wen)怎樣處理，這種(zhong)現(xian)象大(da)多為注塑(su)(su)機(ji)， 注塑(su)(su)機(ji)裝置(zhi)的電磁加熱器數(shu)量比(bi)較多，攪(jiao)擾也比(bi)較嚴重，有時候發現(xian)溫(wen)(wen)度(du)(du)顯(xian)現(xian)亂(luan)跳(tiao)，溫(wen)(wen)度(du)(du)不穩守時，能夠選用(yong)幾種(zhong)辦法測(ce)驗：

第，熱電(dian)偶接頭兩(liang)頭能夠并(bing)個102P瓷片電(dian)容以消除高頻(pin)攪擾(rao)。

第二，檢查下炮筒接(jie)地是不是杰出？測(ce)驗炮筒強行接(jie)地處理。

第三，能(neng)夠把線(xian)圈遠離下熱電偶，減小攪擾。

第四，測(ce)(ce)驗(yan)下(xia)用高溫布(bu)把(ba)熱電偶包(bao)住(zhu)，讓它不要(yao)與炮筒觸摸(mo)。第五，測(ce)(ce)驗(yan)換條新的熱電偶。第六，測(ce)(ce)驗(yan)下(xia)注塑(su)機(ji)操控電腦中心加個Pai型慮波器，減小電源攪(jiao)擾。

電(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)(re)能省(sheng)電(dian)(dian)的(de)(de)原因及效果：電(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)(re)器的(de)(de)原理是(shi)電(dian)(dian)磁(ci)(ci)感(gan)應(ying)加(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)原理，它采用(yong)內(nei)部加(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)方法，即(ji)讓(rang)材料(liao)自身發(fa)熱(re)(re)(re)(re)，而不是(shi)傳遞熱(re)(re)(re)(re)量，它是(shi)通過電(dian)(dian)、磁(ci)(ci)和(he)熱(re)(re)(re)(re)之間的(de)(de)能量轉(zhuan)換來達到加(jia)(jia)(jia)熱(re)(re)(re)(re)材料(liao)的(de)(de)目的(de)(de)。此外，還有包(bao)裝20Mm厚(hou)的(de)(de)保溫棉(mian)外容(rong)器的(de)(de)材料(liao)。可以說，電(dian)(dian)磁(ci)(ci)感(gan)應(ying)加(jia)(jia)(jia)熱(re)(re)(re)(re)過程中(zhong)存在的(de)(de)熱(re)(re)(re)(re)量損失很低，熱(re)(re)(re)(re)能利用(yong)率(lv)高(gao)達98%。相反，電(dian)(dian)磁(ci)(ci)感(gan)應(ying)加(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)節電(dian)(dian)效果是(shi)相當(dang)可觀的(de)(de)，用(yong)電(dian)(dian)磁(ci)(ci)輻射熱(re)(re)(re)(re)利用(yong)率(lv)的(de)(de)高(gao)值(zhi)和(he)低值(zhi)減去電(dian)(dian)阻(zu)加(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)小值(zhi)和(he)大值(zhi)，就可以從(cong)電(dian)(dian)磁(ci)(ci)加(jia)(jia)(jia)熱(re)(re)(re)(re)中(zhong)獲(huo)得種節約電(dian)(dian)量。

電磁感應加熱器控制溫度場的(de)分(fen)布的(de)原理及方法如下(xia)：

1、原理：導體(ti)(ti)處于(yu)交(jiao)變(bian)(bian)電流(liu)中(zhong)時，交(jiao)變(bian)(bian)電流(liu)使導體(ti)(ti)周圍產(chan)生交(jiao)變(bian)(bian)磁(ci)場，從而引起集膚(fu)效(xiao)應使導體(ti)(ti)在短時間內迅(xun)速被加熱，交(jiao)變(bian)(bian)電流(liu)的頻率越高，集膚(fu)效(xiao)應越嚴重。

2、電流(liu)(liu)透入(ru)深度對(dui)感(gan)應加熱(re)的(de)影響：把金屬(shu)(shu)圓(yuan)(yuan)(yuan)柱(zhu)體放在(zai)通有交流(liu)(liu)電的(de)線(xian)圈中(zhong)，盡管金屬(shu)(shu)圓(yuan)(yuan)(yuan)柱(zhu)不與線(xian)圈接觸，線(xian)圈本身的(de)溫度也(ye)很低，但是圓(yuan)(yuan)(yuan)柱(zhu)表面卻會(hui)被加熱(re)到發紅，甚至(zhi)熔(rong)化，這是由于電磁(ci)感(gan)應作(zuo)用，在(zai)金屬(shu)(shu)柱(zhu)中(zhong)感(gan)生(sheng)與線(xian)圈電流(liu)(liu)方向(xiang)相反的(de)渦流(liu)(liu),在(zai)渦流(liu)(liu)的(de)焦耳熱(re)作(zuo)用下(xia)，金屬(shu)(shu)自(zi)身發熱(re)升溫所引(yin)起(qi)的(de)。金屬(shu)(shu)圓(yuan)(yuan)(yuan)柱(zhu)中(zhong)的(de)感(gan)生(sheng)電流(liu)(liu)的(de)分布(bu)在(zai)表面強，在(zai)徑向(xiang)從(cong)外到里按指數函數方式(shi)減小。這種電流(liu)(liu)不均(jun)勻(yun)分布(bu)的(de)現象，隨電流(liu)(liu)頻率升高而趨顯著。

電磁(ci)加(jia)熱器(qi)的安裝及調試(shi)(shi)：電磁(ci)加(jia)熱器(qi)的安裝及調試(shi)(shi)比較簡單：

1、改(gai)造之前，先(xian)把(ba)設(she)備接線(xian)情況理下，拍照，做記號（以備恢復原狀）。

2、確定控制(zhi)板(ban)或(huo)電柜安裝位置，以(yi)便于確定高溫線(xian)引線(xian)長(chang)度。定要跟工廠電工或(huo)班交流，確認。

3、拆線圈測量功率， 數據要準(zhun)。 來確定安裝功率。可以(yi)結合工(gong)廠電工(gong)，這也要拍照，留原始記錄。

4、量炮筒周(zhou)長， 確定保溫棉(mian)尺寸，黃蠟板尺寸，黃蠟板預留(liu)探(tan)頭孔(kong)，孔(kong)尺寸要(yao)準，確定每個溫區長度，固定。

5、確(que)定高(gao)溫線長度(du)，繞(rao)(rao)制。 要求美觀。整齊。包括間(jian)距大小(xiao)控(kong)制， 松緊(jin)控(kong)制。 繞(rao)(rao)完后測量電感量大小(xiao)。 注(zhu)意(yi)儀表量程。

6、接線。確認以前斷路器電流(liu)表量程，過小要換掉。先分別(bie)測(ce)(ce)試，測(ce)(ce)電壓，電流(liu)是否正常。有問題解決， 沒問題后(hou)在整機(ji)測(ce)(ce)試。

7、 整理，清理現場。要求利索整潔。

電磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)高能(neng)加(jia)(jia)(jia)熱(re)(re)到(dao)(dao)(dao)(dao)多少度？這(zhe)(zhe)(zhe)(zhe)個(ge)問題(ti)很多朋友都問過我，那么用電磁(ci)(ci)(ci)(ci)感應(ying)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)能(neng)達到(dao)(dao)(dao)(dao)多少度呢(ni)？”這(zhe)(zhe)(zhe)(zhe)取(qu)決于受熱(re)(re)物體的(de)(de)(de)(de)材料。對于鐵的(de)(de)(de)(de)加(jia)(jia)(jia)熱(re)(re)體，電磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)可以(yi)(yi)加(jia)(jia)(jia)熱(re)(re)到(dao)(dao)(dao)(dao)500到(dao)(dao)(dao)(dao)600度以(yi)(yi)上。如(ru)果(guo)(guo)(guo)功(gong)(gong)(gong)率(lv)不(bu)(bu)明顯，功(gong)(gong)(gong)率(lv)小可以(yi)(yi)加(jia)(jia)(jia)熱(re)(re)到(dao)(dao)(dao)(dao)500度以(yi)(yi)上，但功(gong)(gong)(gong)率(lv)大時加(jia)(jia)(jia)熱(re)(re)速度快(kuai)(kuai)，小功(gong)(gong)(gong)率(lv)時加(jia)(jia)(jia)熱(re)(re)速度慢。如(ru)果(guo)(guo)(guo)它(ta)是(shi)(shi)臺大機(ji)器(qi)(qi)(qi)，它(ta)配(pei)備了大功(gong)(gong)(gong)率(lv)的(de)(de)(de)(de)電磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)，如(ru)果(guo)(guo)(guo)它(ta)是(shi)(shi)臺小型(xing)的(de)(de)(de)(de)機(ji)器(qi)(qi)(qi)，它(ta)就配(pei)備了低功(gong)(gong)(gong)率(lv)的(de)(de)(de)(de)電磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)。因(yin)為加(jia)(jia)(jia)熱(re)(re)的(de)(de)(de)(de)速度直接(jie)影響到(dao)(dao)(dao)(dao)生產的(de)(de)(de)(de)過程和(he)速度，所以(yi)(yi)般情況下(xia)好有更高的(de)(de)(de)(de)功(gong)(gong)(gong)率(lv)，這(zhe)(zhe)(zhe)(zhe)樣加(jia)(jia)(jia)熱(re)(re)的(de)(de)(de)(de)速度就會更快(kuai)(kuai)。為什么鐵不(bu)(bu)能(neng)加(jia)(jia)(jia)熱(re)(re)到(dao)(dao)(dao)(dao)600度呢(ni)？這(zhe)(zhe)(zhe)(zhe)是(shi)(shi)因(yin)為鐵達到(dao)(dao)(dao)(dao)600度時達到(dao)(dao)(dao)(dao)居里點，這(zhe)(zhe)(zhe)(zhe)是(shi)(shi)退磁(ci)(ci)(ci)(ci)，當鐵丟失時，如(ru)果(guo)(guo)(guo)主機(ji)沒有保護電路，那是(shi)(shi)危(wei)險的(de)(de)(de)(de)。如(ru)果(guo)(guo)(guo)加(jia)(jia)(jia)熱(re)(re)的(de)(de)(de)(de)物體是(shi)(shi)石墨鋼(gang)罐，高溫度可以(yi)(yi)加(jia)(jia)(jia)熱(re)(re)到(dao)(dao)(dao)(dao)1000度以(yi)(yi)上。在同功(gong)(gong)(gong)率(lv)下(xia)，哪(na)種電磁(ci)(ci)(ci)(ci)式(shi)(shi)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)和(he)傳(chuan)(chuan)統(tong)的(de)(de)(de)(de)電阻(zu)式(shi)(shi)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)更快(kuai)(kuai)？這(zhe)(zhe)(zhe)(zhe)對電磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)來(lai)說更快(kuai)(kuai)，因(yin)為傳(chuan)(chuan)統(tong)的(de)(de)(de)(de)電阻(zu)式(shi)(shi)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)通常只有大約(yue)60%的(de)(de)(de)(de)熱(re)(re)效率(lv)，而電磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)的(de)(de)(de)(de)熱(re)(re)效率(lv)利用率(lv)超過90%。加(jia)(jia)(jia)熱(re)(re)速度自然是(shi)(shi)電磁(ci)(ci)(ci)(ci)加(jia)(jia)(jia)熱(re)(re)器(qi)(qi)(qi)的(de)(de)(de)(de)速度更快(kuai)(kuai)。

普及下(xia)電(dian)磁加(jia)熱(re)器的應用原理，電(dian)磁加(jia)熱(re)是將380V50Hz交(jiao)流(liu)電(dian)變(bian)(bian)成(cheng)530VDC-560VDC50HZ直流(liu)電(dian)，再經過變(bian)(bian)頻(pin)控(kong)制(zhi)技術逆變(bian)(bian)成(cheng)5KHZ-30Hz的高頻(pin)交(jiao)流(liu)電(dian)流(liu)，通過電(dian)磁加(jia)熱(re)感應器與電(dian)磁線圈(quan)組(zu)合轉(zhuan)換為高頻(pin)交(jiao)變(bian)(bian)磁場，交(jiao)變(bian)(bian)磁場的磁力線作用到金(jin)屬管道(dao)上產生鍋流(liu)，從(cong)而快速加(jia)熱(re)金(jin)屬管道(dao)。