模溫(wen)機又叫模具溫(wen)度控制機,廣(guang)泛應用于塑(su)膠(jiao)成型,導光板壓鑄,橡(xiang)膠(jiao)輪胎、滾輪,化工反應釜、粘合(he)、密(mi)煉等各行各業。從廣(guang)義(yi)方面講,叫溫(wen)度控制設備,包含(han)加(jia)溫(wen)和冷凍兩個方面的(de)溫(wen)度控制。
現在模(mo)溫(wen)(wen)(wen)(wen)機一般(ban)分(fen)水(shui)(shui)溫(wen)(wen)(wen)(wen)機、油溫(wen)(wen)(wen)(wen)機控制的溫(wen)(wen)(wen)(wen)度(du)(du)可以達(da)到(dao)正負0.1度(du)(du)。標準型(xing)水(shui)(shui)介質模(mo)溫(wen)(wen)(wen)(wen)機工(gong)作(zuo)較高溫(wen)(wen)(wen)(wen)度(du)(du)為120℃,高溫(wen)(wen)(wen)(wen)型(xing)水(shui)(shui)介質模(mo)溫(wen)(wen)(wen)(wen)機工(gong)作(zuo)較高180℃。水(shui)(shui)式模(mo)溫(wen)(wen)(wen)(wen)機由于(yu)比(bi)較干凈,常用(yong)于(yu)光學鏡(jing)片、注塑成型(xing)等行業。
油式模(mo)(mo)溫(wen)(wen)(wen)(wen)機又叫油溫(wen)(wen)(wen)(wen)機或是油加熱器,油式模(mo)(mo)溫(wen)(wen)(wen)(wen)機(油溫(wen)(wen)(wen)(wen)機):油式模(mo)(mo)溫(wen)(wen)(wen)(wen)機分為(wei)三個等級:標準型、高(gao)溫(wen)(wen)(wen)(wen)型、超高(gao)溫(wen)(wen)(wen)(wen)型,較(jiao)高(gao)工作溫(wen)(wen)(wen)(wen)度分別為(wei)180℃,300℃,350℃。
其工作原理:模溫(wen)(wen)機管路與模具油(you)道(dao)連(lian)接(jie)構成回路,導(dao)熱(re)油(you)在泵的作用下進行循(xun)環(huan)。溫(wen)(wen)度(du)傳(chuan)感器(qi)將數據傳(chuan)送到控(kong)制系(xi)統,自動(dong)調(diao)整加(jia)熱(re)/冷(leng)卻動(dong)作,控(kong)制導(dao)熱(re)油(you)溫(wen)(wen)度(du)。
模溫機(ji)在塑膠行業的運用(yong)比較普遍(bian),主要作用(yong)是(shi):
1,提高(gao)產品(pin)的成型效(xiao)率;
2,降低不(bu)良品的產生;
3,提高(gao)產(chan)品的外觀(guan),抑(yi)制產(chan)品的缺(que)陷;
4,加快(kuai)生產進度(du),降低能耗,節約(yue)能源。
模(mo)(mo)溫機在壓鑄行業(ye)的(de)運(yun)用也有(you)很大的(de)空間(jian)(jian),特別是在鎂合金,鋁合金的(de)制造中,不(bu)平均或不(bu)適(shi)當的(de)模(mo)(mo)具(ju)溫度(du)會(hui)導(dao)致(zhi)鑄件(jian)(jian)尺寸不(bu)穩定,在生(sheng)產過程中頂出鑄件(jian)(jian)變形,產生(sheng)熱(re)壓力、黏(nian)模(mo)(mo)、表面凹陷、內縮孔及(ji)熱(re)泡(pao)等缺(que)陷。對生(sheng)產周(zhou)期(qi)也產生(sheng)影響,如填(tian)充時間(jian)(jian)、冷卻時間(jian)(jian)及(ji)噴涂時間(jian)(jian)都產生(sheng)不(bu)穩定的(de)變數(shu)。模(mo)(mo)具(ju)的(de)壽命也會(hui)因(yin)受(shou)到(dao)過冷過熱(re)的(de)沖擊而導(dao)致(zhi)昂貴(gui)的(de)鋼材(cai)產生(sheng)熱(re)裂,加速其老化。
在現(xian)代化的工廠中(zhong),因應(ying)市場的競爭,節省人力,提高品(pin)質(zhi),降(jiang)低成(cheng)(cheng)本的經(jing)營策略是刻不容緩(huan)的,模(mo)溫(wen)機的使(shi)用(yong),可使(shi)模(mo)具預熱時間減少,成(cheng)(cheng)品(pin)表面質(zhi)量提升及(ji)可完全自動化生產(chan)。提高模(mo)具壽(shou)命是提高生產(chan)力的必要手段。
溫(wen)(wen)(wen)度控(kong)(kong)制(zhi)機(ji)(ji)在其他行業(ye)的運用則是設備(bei)構成的必然(ran)條件(jian),叫(jiao)法也(ye)不(bu)同。在PVC片材輥輪控(kong)(kong)溫(wen)(wen)(wen)中叫(jiao)油(you)加熱器,在擠出機(ji)(ji)設備(bei)中叫(jiao)溫(wen)(wen)(wen)控(kong)(kong)裝置(zhi),在橡膠密煉機(ji)(ji)設備(bei)中叫(jiao)溫(wen)(wen)(wen)度控(kong)(kong)制(zhi)系統或叫(jiao)溫(wen)(wen)(wen)控(kong)(kong)機(ji)(ji),這些設備(bei)中基(ji)本上是一個先(xian)快速(su)升溫(wen)(wen)(wen),然(ran)后是保(bao)溫(wen)(wen)(wen)的過程。而(er)在橡膠設備(bei)中升溫(wen)(wen)(wen)后還需要長期執(zhi)行一個降溫(wen)(wen)(wen)冷卻的過程。?