電磁感應加熱器線圈發熱的問題：

1、如果將金屬物體(ti)置于磁(ci)場中，或把它(ta)在(zai)磁(ci)場中切(qie)割磁(ci)力線(xian)時(shi)，其內部會產生(sheng)感應(ying)電(dian)流(liu)。這種感應(ying)電(dian)流(liu)會使金屬塊會很快的(de)發熱。電(dian)磁(ci)感應(ying)加熱器的(de)線(xian)圈(quan)發熱要看溫度達到多少度，在(zai)般的(de)情況(kuang)下，電(dian)磁(ci)線(xian)圈(quan)的(de)正常溫度在(zai)70度左右，80度以下才(cai)是正常的(de)，如果超(chao)過了(le)(le)90度，肯定就是有問題了(le)(le)。

2、電磁(ci)感應加(jia)熱(re)(re)(re)器(qi)線(xian)圈(quan)本身的(de)問題(ti)(ti)：線(xian)圈(quan)的(de)問題(ti)(ti)就(jiu)涉及的(de)質量(liang)和選配上了(le)(le)(le)。（質量(liang)上的(de)問題(ti)(ti)就(jiu)不(bu)(bu)講解了(le)(le)(le)），如果(guo)是(shi)(shi)使用(yong)高頻(pin)線(xian)，那線(xian)般(ban)問題(ti)(ti)不(bu)(bu)大。這(zhe)種情況其(qi)實還是(shi)(shi)主板的(de)問題(ti)(ti)，我(wo)們的(de)以前(qian)的(de)主板也會有這(zhe)個(ge)問題(ti)(ti)，因為主板缺陷，而25平(ping)方的(de)線(xian)也比(bi)較(jiao)粗(cu)了(le)(le)(le)，集膚效應導致(zhi)線(xian)材(cai)發(fa)(fa)熱(re)(re)(re)也是(shi)(shi)必然的(de)，以前(qian)我(wo)們都(dou)是(shi)(shi)用(yong)多(duo)股漆包高頻(pin)線(xian)來解決(jue)密封電氣箱(xiang)內，每個(ge)器(qi)件(jian)的(de)發(fa)(fa)熱(re)(re)(re)量(liang)的(de)，其(qi)實使用(yong)上沒(mei)什么(me)區(qu)別，就(jiu)是(shi)(shi)安裝變得繁(fan)瑣(suo)了(le)(le)(le)些，不(bu)(bu)過現(xian)在公司的(de)電蔗(zhe)感應加(jia)熱(re)(re)(re)器(qi)已經(jing)改(gai)善(shan)，調整(zheng)了(le)(le)(le)機(ji)器(qi)的(de)Q值，并對整(zheng)個(ge)機(ji)芯(xin)做(zuo)了(le)(le)(le)隔熱(re)(re)(re)、散(san)熱(re)(re)(re)處理(li)，斷不(bu)(bu)會出(chu)現(xian)單(dan)根(gen)25平(ping)方線(xian)高溫現(xian)象，所以如果(guo)大家買了(le)(le)(le)機(ji)器(qi)發(fa)(fa)熱(re)(re)(re)量(liang)過大，又(you)不(bu)(bu)好(hao)(hao)退換(huan)的(de)話，可以考慮下(xia)用(yong)多(duo)股線(xian)來代替(ti)單(dan)的(de)25平(ping)方線(xian)，當然好(hao)(hao)還是(shi)(shi)找有實力的(de)公司購(gou)買，畢竟多(duo)少是(shi)(shi)因為設計問題(ti)(ti)而導致(zhi)的(de)發(fa)(fa)熱(re)(re)(re)現(xian)象。

電磁(ci)加(jia)熱器的全橋和半橋的穩定性的異同：

、相同：在技術(shu)設計(ji)處理(li)完善的情況(kuang)下，均可達到(dao)較理(li)想的運(yun)作穩定(ding)性。

二(er)、元件損耗上不同：

1、全橋：各元件(jian)負(fu)擔較合理(li)，損耗比較小，壽命較長。

2、半(ban)橋：各元件負擔較重(zhong)，損耗比相(xiang)對較大，壽(shou)命相(xiang)對合(he)理。

三、故障率上：

1、全橋：保護電(dian)路(lu)設計(ji)較(jiao)復雜(za)，周(zhou)全，維修率較(jiao)低。

2、半橋：保護電路設計較(jiao)簡(jian)化，維修率(小元件)相對較(jiao)高(gao)。

電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)的(de)(de)(de)耗(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)情況是(shi)(shi)(shi)怎樣的(de)(de)(de)？工(gong)(gong)作(zuo)原理是(shi)(shi)(shi)把(ba)220V或(huo)者(zhe)380V交流電(dian)(dian)(dian)(dian)(dian)，整(zheng)流后(hou)(hou)轉換成直(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)，再(zai)將直(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)進行濾波，利用IGBT或(huo)者(zhe)可控硅再(zai)將直(zhi)(zhi)(zhi)流變成交流，在感應線圈(quan)內(nei)產生高頻(pin)磁(ci)(ci)(ci)力線，是(shi)(shi)(shi)感應線圈(quan)內(nei)導體(ti)(ti)工(gong)(gong)件表面產生渦流依靠自生內(nei)阻發熱(re)(re)。電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)工(gong)(gong)作(zuo)中當溫(wen)(wen)度(du)沒達到(dao)設置的(de)(de)(de)溫(wen)(wen)度(du)時，電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)會(hui)直(zhi)(zhi)(zhi)加(jia)(jia)熱(re)(re)，當達到(dao)了預設的(de)(de)(de)溫(wen)(wen)度(du)以(yi)(yi)后(hou)(hou)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)停止加(jia)(jia)熱(re)(re)了，也(ye)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)不(bu)(bu)再(zai)耗(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)了。電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)每個(ge)小(xiao)時的(de)(de)(de)耗(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)多少與電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)加(jia)(jia)熱(re)(re)的(de)(de)(de)時間(jian)長短(duan)有(you)關。電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)剛工(gong)(gong)作(zuo)是(shi)(shi)(shi)滿功率，加(jia)(jia)熱(re)(re)溫(wen)(wen)度(du)了，就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)是(shi)(shi)(shi)工(gong)(gong)作(zuo)會(hui)，停會(hui)。總(zong)體(ti)(ti)上來說，電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)耗(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)是(shi)(shi)(shi)很小(xiao)的(de)(de)(de)，因(yin)為(wei)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)不(bu)(bu)是(shi)(shi)(shi)直(zhi)(zhi)(zhi)加(jia)(jia)熱(re)(re)工(gong)(gong)作(zuo)的(de)(de)(de)，而是(shi)(shi)(shi)有(you)間(jian)隙的(de)(de)(de)加(jia)(jia)熱(re)(re)的(de)(de)(de)，先(xian)是(shi)(shi)(shi)加(jia)(jia)熱(re)(re)，然后(hou)(hou)達到(dao)溫(wen)(wen)度(du)后(hou)(hou)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)停止加(jia)(jia)熱(re)(re)，之后(hou)(hou)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)開始(shi)保(bao)溫(wen)(wen)工(gong)(gong)作(zuo)，直(zhi)(zhi)(zhi)到(dao)溫(wen)(wen)度(du)沒達到(dao)預設的(de)(de)(de)溫(wen)(wen)度(du)后(hou)(hou)再(zai)加(jia)(jia)熱(re)(re)下，整(zheng)體(ti)(ti)上來講，電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)并不(bu)(bu)是(shi)(shi)(shi)直(zhi)(zhi)(zhi)加(jia)(jia)熱(re)(re)耗(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)，所以(yi)(yi)也(ye)是(shi)(shi)(shi)比較省(sheng)電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)個(ge)原因(yin)。同(tong)時因(yin)為(wei)料筒(tong)上還(huan)包有(you)層(ceng)保(bao)溫(wen)(wen)棉，能起到(dao)保(bao)溫(wen)(wen)和(he)隔熱(re)(re)的(de)(de)(de)效(xiao)果，那么熱(re)(re)量(liang)(liang)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)不(bu)(bu)會(hui)損失掉了，那么能夠持續恒溫(wen)(wen)加(jia)(jia)熱(re)(re)的(de)(de)(de)時間(jian)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)越(yue)(yue)長了。耗(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)也(ye)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)越(yue)(yue)小(xiao)了。通(tong)過上述對電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)感應加(jia)(jia)熱(re)(re)器(qi)改造時所配功率的(de)(de)(de)介紹，我們可以(yi)(yi)了解電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)加(jia)(jia)熱(re)(re)的(de)(de)(de)時間(jian)越(yue)(yue)短(duan)那么耗(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)越(yue)(yue)小(xiao)，反之電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)加(jia)(jia)熱(re)(re)器(qi)加(jia)(jia)熱(re)(re)的(de)(de)(de)時間(jian)越(yue)(yue)長，耗(hao)(hao)(hao)電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)就(jiu)(jiu)(jiu)(jiu)(jiu)(jiu)越(yue)(yue)大。

在使用電磁加熱器時要注意(yi)什么？

1、使(shi)用程要輕易(yi)拆除電(dian)磁加熱控制板接(jie)導線接(jie)措施(shi)防止觸電(dian)道保護措施(shi)。

2、要定期(qi)清理散熱器保證(zheng)電磷感應(ying)加熱器通(tong)風。

3、使用電磁加熱器應先按說明書(shu)繞線圈并(bing)檢查誤再接通電源。

4、保養清洗(xi)電(dian)(dian)磁加熱(re)器(qi)前切斷電(dian)(dian)磁加熱(re)器(qi)電(dian)(dian)源清潔(jie)電(dian)(dian)磁加熱(re)器(qi)外(wai)殼應(ying)用(yong)干凈抹布進行擦拭嚴禁用(yong)噴(pen)射(she)水流沖(chong)洗(xi)外(wai)殼及電(dian)(dian)器(qi)箱(xiang)部。

5、要電(dian)磁加熱器安裝潮濕環境(jing)防止水蒸(zheng)汽進入(ru)電(dian)箱易緣介質表面凝結(jie)降低其(qi)緣性能(neng)造漏(lou)電(dian)事故(gu)。

6、要經檢查電磁加熱器(qi)進風(feng)口及散(san)熱風(feng)扇(shan)防止進風(feng)口處堵塞或散(san)熱風(feng)扇(shan)卡死避免(mian)熱停機保護(hu)。

電磁(ci)加(jia)(jia)熱(re)器(qi)(qi)的(de)溫度(du)(du)(du)升不(bu)上(shang)去該怎(zen)么辦？第二種(zhong)解決(jue)方法：當造粒(li)機類似于大功(gong)率(lv)時(shi)，安(an)裝電磁(ci)加(jia)(jia)熱(re)器(qi)(qi)后，溫度(du)(du)(du)總達(da)不(bu)到。而(er)且(qie)電磁(ci)加(jia)(jia)熱(re)器(qi)(qi)也(ye)直在工(gong)作，電流(liu)也(ye)正常，但是(shi)(shi)溫度(du)(du)(du)總上(shang)不(bu)去，般這(zhe)種(zhong)情(qing)況(kuang)是(shi)(shi)功(gong)率(lv)不(bu)夠(gou)大。目前是(shi)(shi)市面上(shang)的(de)些中間(jian)商用40kw貼(tie)個子就說是(shi)(shi)60kw電磁(ci)加(jia)(jia)熱(re)器(qi)(qi)的(de)事件見過許多，我們可(ke)以通(tong)過電流(liu)確定下功(gong)率(lv)到底是(shi)(shi)多少，如果(guo)(guo)確定是(shi)(shi)實際功(gong)率(lv)太小了(le)，可(ke)以加(jia)(jia)大實際功(gong)率(lv)來實現。要是(shi)(shi)確定實際功(gong)率(lv)不(bu)小了(le)，這(zhe)是(shi)(shi)由炮(pao)(pao)(pao)筒(tong)的(de)材料引起來的(de)，不(bu)同(tong)材質在不(bu)同(tong)的(de)工(gong)作頻率(lv)時(shi)吸收熱(re)量(liang)也(ye)不(bu)同(tong)。應該是(shi)(shi)嘗試(shi)增加(jia)(jia)諧振電容容量(liang)，讓(rang)Q值增加(jia)(jia)，提高(gao)(gao)線(xian)圈高(gao)(gao)頻電流(liu)。可(ke)以使炮(pao)(pao)(pao)筒(tong)內外溫度(du)(du)(du)均勻的(de)來達(da)到提高(gao)(gao)炮(pao)(pao)(pao)筒(tong)的(de)溫度(du)(du)(du)。如果(guo)(guo)各個方面的(de)條件可(ke)以的(de)話(hua)，可(ke)以試(shi)著去換(huan)掉炮(pao)(pao)(pao)筒(tong)試(shi)試(shi)。

電磁加熱器(qi)IGBT溫度傳感器(qi)異(yi)常解決方法：

1、出現傳(chuan)感(gan)器(qi)異常后(hou)請先將傳(chuan)感(gan)器(qi)引(yin)線主板上拔下，再用萬(wan)用表測量其阻值，常溫25℃時阻值應(ying)約為(wei)10K，否則傳(chuan)感(gan)器(qi)已損壞。

2、如傳感器(qi)正常，再檢(jian)測傳感器(qi)引線是否與CN3連接正常。C36、R16是否開(kai)、短(duan)路(lu)。

3、檢測U5第(di)16腳(jiao)是否連(lian)接正常。

電(dian)(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)器(qi)(qi)的(de)(de)溫(wen)(wen)(wen)度(du)(du)調節不(bu)準是(shi)怎么回事？ 電(dian)(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)器(qi)(qi)系統包括電(dian)(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)控(kong)(kong)制(zhi)器(qi)(qi)和電(dian)(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)圈這兩(liang)部(bu)分(fen)，每個(ge)行業(ye)中對于(yu)溫(wen)(wen)(wen)控(kong)(kong)的(de)(de)要求(qiu)都不(bu)樣，下面就來(lai)介(jie)紹電(dian)(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)器(qi)(qi)如何達(da)到(dao)精(jing)確(que)(que)是(shi)溫(wen)(wen)(wen)控(kong)(kong)效(xiao)果?塑(su)料(liao)行業(ye)中加(jia)(jia)(jia)熱(re)器(qi)(qi)，重要指標就是(shi)保證機器(qi)(qi)各溫(wen)(wen)(wen)區的(de)(de)溫(wen)(wen)(wen)度(du)(du)精(jing)確(que)(que)性，各種塑(su)料(liao)原料(liao)對于(yu)溫(wen)(wen)(wen)度(du)(du)的(de)(de)敏感性雖然不(bu)樣，但在(zai)生產(chan)過(guo)程中對于(yu)溫(wen)(wen)(wen)度(du)(du)精(jing)確(que)(que)性的(de)(de)要求(qiu)都比較高，很多塑(su)料(liao)產(chan)品(pin)要求(qiu)溫(wen)(wen)(wen)度(du)(du)不(bu)能超(chao)過(guo)±5℃，因此(ci)，很多種類的(de)(de)塑(su)料(liao)機有采用風(feng)冷(leng)或水冷(leng)進(jin)行降溫(wen)(wen)(wen)控(kong)(kong)制(zhi)，否則(ze)，加(jia)(jia)(jia)工出來(lai)的(de)(de)東(dong)西可(ke)(ke)能不(bu)是(shi)廢品(pin)就是(shi)次品(pin)。電(dian)(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)器(qi)(qi)利用電(dian)(dian)(dian)磁(ci)加(jia)(jia)(jia)熱(re)控(kong)(kong)制(zhi)板，再配(pei)以(yi)必要的(de)(de)風(feng)冷(leng)、水冷(leng)裝置，溫(wen)(wen)(wen)度(du)(du)控(kong)(kong)制(zhi)可(ke)(ke)以(yi)精(jing)確(que)(que)到(dao)±1℃。當然同(tong)時也要對塑(su)料(liao)機性能及塑(su)料(liao)原料(liao)有全(quan)面了(le)解及進(jin)行必要合理配(pei)置。這樣可(ke)(ke)以(yi)降低企(qi)業(ye)損耗、提高企(qi)業(ye)效(xiao)益(yi)。產(chan)品(pin)性能穩(wen)定、節能、環(huan)保，產(chan)出的(de)(de)顆粒(li)品(pin)質好。

電磁加熱器多溫區(qu)控制就是有兩種(zhong)：

第種(zhong)：是臺電磁加熱控(kong)制器控(kong)制多組(zu)線圈。

第(di)二種:是臺(tai)設(she)備(bei)使用多個電(dian)磁加熱控制(zhi)器(qi)(qi)分別控制(zhi)多個線圈。現在例(li)如(ru)注(zhu)塑機，拉絲機，吹(chui)膜機，擠出(chu)機等機械設(she)備(bei)，料管(guan)加熱部分都需要(yao)幾個不同溫(wen)度才能滿(man)足生(sheng)產(chan)，這時候就要(yao)使用到電(dian)磁加熱器(qi)(qi)多溫(wen)區來控制(zhi)。

第三種：臺電磁加(jia)熱(re)控(kong)制(zhi)器控(kong)制(zhi)多組線圈比(bi)較少用，因為如果主機旦出現故障，整個幾個溫度都將無法(fa)加(jia)熱(re)，影響正規(gui)生(sheng)產，而且維護起來也是(shi)比(bi)較麻(ma)煩的。

第四種：多個(ge)電(dian)磁加(jia)熱(re)控制器分別控制獨立線圈，這樣不但便于管(guan)理，而且(qie)加(jia)熱(re)非常均勻，維護起來也(ye)是十(shi)分方便的。