模溫(wen)(wen)機又叫模具溫(wen)(wen)度(du)控制機,廣(guang)(guang)泛應用于塑膠成型(xing),導光板壓鑄,橡膠輪胎、滾輪,化(hua)工(gong)反應釜、粘合、密煉等各行各業。從廣(guang)(guang)義方面(mian)講,叫溫(wen)(wen)度(du)控制設備,包含加溫(wen)(wen)和冷凍兩個方面(mian)的溫(wen)(wen)度(du)控制。
現在(zai)模溫(wen)(wen)(wen)機(ji)一般分水(shui)(shui)溫(wen)(wen)(wen)機(ji)、油(you)溫(wen)(wen)(wen)機(ji)控制的溫(wen)(wen)(wen)度(du)可(ke)以達到正負0.1度(du)。標(biao)準(zhun)型(xing)(xing)水(shui)(shui)介(jie)質模溫(wen)(wen)(wen)機(ji)工作較(jiao)高(gao)溫(wen)(wen)(wen)度(du)為120℃,高(gao)溫(wen)(wen)(wen)型(xing)(xing)水(shui)(shui)介(jie)質模溫(wen)(wen)(wen)機(ji)工作較(jiao)高(gao)180℃。水(shui)(shui)式模溫(wen)(wen)(wen)機(ji)由于(yu)比較(jiao)干(gan)凈,常用于(yu)光學鏡片、注塑(su)成(cheng)型(xing)(xing)等(deng)行(xing)業。
油(you)式(shi)模溫(wen)(wen)(wen)機又(you)叫油(you)溫(wen)(wen)(wen)機或是油(you)加熱器,油(you)式(shi)模溫(wen)(wen)(wen)機(油(you)溫(wen)(wen)(wen)機):油(you)式(shi)模溫(wen)(wen)(wen)機分(fen)(fen)為三(san)個等級:標準型、高(gao)溫(wen)(wen)(wen)型、超(chao)高(gao)溫(wen)(wen)(wen)型,較高(gao)工作溫(wen)(wen)(wen)度分(fen)(fen)別為180℃,300℃,350℃。
其(qi)工作(zuo)原理:模溫機管路與模具油道連接構(gou)成回路,導熱(re)油在泵的作(zuo)用下進(jin)行(xing)循(xun)環(huan)。溫度傳(chuan)感器將數據傳(chuan)送到(dao)控制(zhi)(zhi)系統,自動調整加(jia)熱(re)/冷卻動作(zuo),控制(zhi)(zhi)導熱(re)油溫度。
模溫機在(zai)塑膠行業(ye)的運用(yong)(yong)比(bi)較(jiao)普遍,主(zhu)要(yao)作用(yong)(yong)是:
1,提高產品的成型效(xiao)率;
2,降低(di)不良品(pin)的產(chan)生;
3,提高產品的外觀(guan),抑制(zhi)產品的缺陷;
4,加快生產進度,降(jiang)低能(neng)耗,節約能(neng)源。
模溫機在(zai)壓鑄(zhu)行業的運用(yong)也(ye)有很(hen)大的空間(jian),特別是在(zai)鎂合金,鋁合金的制造(zao)中(zhong),不(bu)平(ping)均或不(bu)適(shi)當的模具(ju)溫度會(hui)導致鑄(zhu)件尺(chi)寸不(bu)穩(wen)定,在(zai)生(sheng)產(chan)過程中(zhong)頂出鑄(zhu)件變(bian)形,產(chan)生(sheng)熱(re)壓力、黏模、表面凹(ao)陷、內縮孔及熱(re)泡等缺陷。對生(sheng)產(chan)周期也(ye)產(chan)生(sheng)影響,如填(tian)充時(shi)間(jian)、冷(leng)卻時(shi)間(jian)及噴涂時(shi)間(jian)都(dou)產(chan)生(sheng)不(bu)穩(wen)定的變(bian)數。模具(ju)的壽命也(ye)會(hui)因受到過冷(leng)過熱(re)的沖擊而導致昂貴的鋼材產(chan)生(sheng)熱(re)裂(lie),加速其老化(hua)。
在(zai)現(xian)代化(hua)(hua)的(de)(de)(de)工廠中,因應市場的(de)(de)(de)競爭,節(jie)省人力,提(ti)(ti)高品(pin)質,降(jiang)低成(cheng)本的(de)(de)(de)經營策略是刻(ke)不容緩(huan)的(de)(de)(de),模溫機的(de)(de)(de)使用,可使模具預(yu)熱時間(jian)減少(shao),成(cheng)品(pin)表(biao)面質量(liang)提(ti)(ti)升及(ji)可完(wan)全自動(dong)化(hua)(hua)生(sheng)產。提(ti)(ti)高模具壽命是提(ti)(ti)高生(sheng)產力的(de)(de)(de)必要手段(duan)。
溫(wen)度(du)控制(zhi)(zhi)機(ji)(ji)在其他行(xing)業的運用(yong)則是(shi)設備(bei)構成的必然(ran)條(tiao)件,叫(jiao)(jiao)法也(ye)不同。在PVC片材輥輪控溫(wen)中(zhong)(zhong)(zhong)叫(jiao)(jiao)油加(jia)熱器,在擠出機(ji)(ji)設備(bei)中(zhong)(zhong)(zhong)叫(jiao)(jiao)溫(wen)控裝置,在橡(xiang)(xiang)膠密煉機(ji)(ji)設備(bei)中(zhong)(zhong)(zhong)叫(jiao)(jiao)溫(wen)度(du)控制(zhi)(zhi)系統或叫(jiao)(jiao)溫(wen)控機(ji)(ji),這(zhe)些設備(bei)中(zhong)(zhong)(zhong)基本上是(shi)一(yi)個(ge)先快(kuai)速升溫(wen),然(ran)后是(shi)保溫(wen)的過程。而在橡(xiang)(xiang)膠設備(bei)中(zhong)(zhong)(zhong)升溫(wen)后還(huan)需要(yao)長期(qi)執行(xing)一(yi)個(ge)降溫(wen)冷卻的過程。?