模溫(wen)(wen)機(ji)又叫模具溫(wen)(wen)度控制機(ji),廣泛應用于(yu)塑膠(jiao)成型,導光板壓鑄,橡膠(jiao)輪胎、滾輪,化工(gong)反(fan)應釜、粘合(he)、密煉等各(ge)行各(ge)業(ye)。從廣義方面講,叫溫(wen)(wen)度控制設備(bei),包(bao)含加(jia)溫(wen)(wen)和(he)冷凍兩個方面的溫(wen)(wen)度控制。
現在模(mo)溫(wen)(wen)(wen)(wen)(wen)機(ji)一(yi)般分水(shui)溫(wen)(wen)(wen)(wen)(wen)機(ji)、油溫(wen)(wen)(wen)(wen)(wen)機(ji)控制的溫(wen)(wen)(wen)(wen)(wen)度可以達到正(zheng)負0.1度。標準型(xing)水(shui)介(jie)質模(mo)溫(wen)(wen)(wen)(wen)(wen)機(ji)工(gong)作較高(gao)溫(wen)(wen)(wen)(wen)(wen)度為120℃,高(gao)溫(wen)(wen)(wen)(wen)(wen)型(xing)水(shui)介(jie)質模(mo)溫(wen)(wen)(wen)(wen)(wen)機(ji)工(gong)作較高(gao)180℃。水(shui)式模(mo)溫(wen)(wen)(wen)(wen)(wen)機(ji)由于比較干(gan)凈,常用(yong)于光學鏡片(pian)、注塑成型(xing)等行業。
油(you)式模溫(wen)(wen)機(ji)又叫油(you)溫(wen)(wen)機(ji)或(huo)是油(you)加熱器,油(you)式模溫(wen)(wen)機(ji)(油(you)溫(wen)(wen)機(ji)):油(you)式模溫(wen)(wen)機(ji)分(fen)為三(san)個等級:標準型(xing)、高(gao)溫(wen)(wen)型(xing)、超高(gao)溫(wen)(wen)型(xing),較(jiao)高(gao)工(gong)作溫(wen)(wen)度分(fen)別為180℃,300℃,350℃。
其(qi)工作(zuo)原理:模(mo)溫機(ji)管路與(yu)模(mo)具油道(dao)連接構成回路,導(dao)熱油在泵(beng)的(de)作(zuo)用下進行循環(huan)。溫度(du)傳(chuan)感器將數據傳(chuan)送到控制系(xi)統(tong),自動調整(zheng)加(jia)熱/冷卻(que)動作(zuo),控制導(dao)熱油溫度(du)。
模溫機在塑膠行(xing)業的(de)運用(yong)(yong)比較普遍,主(zhu)要作(zuo)用(yong)(yong)是:
1,提高產品的成型效率;
2,降低(di)不良品(pin)的產生;
3,提高產品的外觀,抑制產品的缺陷;
4,加快生(sheng)產進度(du),降低能耗,節約能源。
模溫機在壓鑄行業的(de)運用也(ye)有很大的(de)空間(jian),特別(bie)是在鎂合金,鋁合金的(de)制造中(zhong)(zhong),不(bu)平均或不(bu)適(shi)當的(de)模具溫度(du)會導(dao)致鑄件(jian)尺寸不(bu)穩定(ding),在生(sheng)(sheng)(sheng)產(chan)(chan)(chan)過程中(zhong)(zhong)頂出鑄件(jian)變形(xing),產(chan)(chan)(chan)生(sheng)(sheng)(sheng)熱(re)(re)壓力、黏模、表面凹陷、內(nei)縮孔及熱(re)(re)泡等缺(que)陷。對生(sheng)(sheng)(sheng)產(chan)(chan)(chan)周(zhou)期也(ye)產(chan)(chan)(chan)生(sheng)(sheng)(sheng)影(ying)響,如填充(chong)時(shi)間(jian)、冷卻時(shi)間(jian)及噴涂時(shi)間(jian)都產(chan)(chan)(chan)生(sheng)(sheng)(sheng)不(bu)穩定(ding)的(de)變數。模具的(de)壽命也(ye)會因受到過冷過熱(re)(re)的(de)沖(chong)擊而導(dao)致昂貴的(de)鋼材產(chan)(chan)(chan)生(sheng)(sheng)(sheng)熱(re)(re)裂,加速其(qi)老化。
在現代化(hua)的工廠中,因應(ying)市場的競爭,節省人力,提高(gao)品質(zhi),降(jiang)低成本的經營策略(lve)是刻不(bu)容緩的,模溫機的使(shi)用,可使(shi)模具預熱時(shi)間(jian)減少,成品表面質(zhi)量提升及可完全自動(dong)化(hua)生產(chan)。提高(gao)模具壽命是提高(gao)生產(chan)力的必(bi)要手段。
溫(wen)(wen)度控(kong)(kong)制機在(zai)其他行(xing)業的(de)(de)運用則是設(she)備(bei)構成的(de)(de)必(bi)然(ran)條件,叫法也(ye)不同。在(zai)PVC片(pian)材輥輪控(kong)(kong)溫(wen)(wen)中叫油加熱器,在(zai)擠出機設(she)備(bei)中叫溫(wen)(wen)控(kong)(kong)裝置,在(zai)橡膠(jiao)密煉機設(she)備(bei)中叫溫(wen)(wen)度控(kong)(kong)制系統或叫溫(wen)(wen)控(kong)(kong)機,這些設(she)備(bei)中基本上是一個(ge)先(xian)快速升(sheng)溫(wen)(wen),然(ran)后是保(bao)溫(wen)(wen)的(de)(de)過程。而在(zai)橡膠(jiao)設(she)備(bei)中升(sheng)溫(wen)(wen)后還需(xu)要(yao)長期執行(xing)一個(ge)降溫(wen)(wen)冷(leng)卻的(de)(de)過程。?