模溫(wen)(wen)機(ji)又叫(jiao)模具溫(wen)(wen)度(du)控(kong)制機(ji),廣泛應用于塑膠成型(xing),導(dao)光板壓(ya)鑄,橡膠輪胎、滾(gun)輪,化工反(fan)應釜、粘(zhan)合、密煉(lian)等各行各業(ye)。從廣義方面(mian)講,叫(jiao)溫(wen)(wen)度(du)控(kong)制設(she)備,包含(han)加溫(wen)(wen)和冷凍兩個方面(mian)的溫(wen)(wen)度(du)控(kong)制。
現在模(mo)(mo)溫(wen)機(ji)一般分水(shui)(shui)溫(wen)機(ji)、油溫(wen)機(ji)控制的溫(wen)度可以達到正負0.1度。標準型水(shui)(shui)介(jie)質(zhi)(zhi)模(mo)(mo)溫(wen)機(ji)工(gong)作較高溫(wen)度為(wei)120℃,高溫(wen)型水(shui)(shui)介(jie)質(zhi)(zhi)模(mo)(mo)溫(wen)機(ji)工(gong)作較高180℃。水(shui)(shui)式模(mo)(mo)溫(wen)機(ji)由于比(bi)較干凈,常用于光學鏡片、注塑成型等行業。
油(you)式模溫(wen)(wen)(wen)機(ji)(ji)(ji)又叫油(you)溫(wen)(wen)(wen)機(ji)(ji)(ji)或是油(you)加熱器,油(you)式模溫(wen)(wen)(wen)機(ji)(ji)(ji)(油(you)溫(wen)(wen)(wen)機(ji)(ji)(ji)):油(you)式模溫(wen)(wen)(wen)機(ji)(ji)(ji)分為三個等級:標準型(xing)、高(gao)溫(wen)(wen)(wen)型(xing)、超高(gao)溫(wen)(wen)(wen)型(xing),較(jiao)高(gao)工(gong)作溫(wen)(wen)(wen)度分別為180℃,300℃,350℃。
其(qi)工作原(yuan)理:模溫機管路與模具油(you)道連(lian)接構成回路,導熱油(you)在泵(beng)的作用下進行循(xun)環。溫度傳感器將數據傳送到控(kong)制系統(tong),自動(dong)調整加熱/冷卻動(dong)作,控(kong)制導熱油(you)溫度。
模(mo)溫機在塑(su)膠行業的運用比(bi)較普遍,主要作用是:
1,提高(gao)產品的(de)成(cheng)型效率(lv);
2,降低不良品的產生;
3,提高產(chan)品的外(wai)觀(guan),抑制產(chan)品的缺陷;
4,加快生(sheng)產進(jin)度,降低能(neng)(neng)耗(hao),節約能(neng)(neng)源。
模溫機在壓(ya)鑄行業的(de)運(yun)用也有很大的(de)空間,特別是(shi)在鎂合金,鋁合金的(de)制造中,不(bu)(bu)平均或(huo)不(bu)(bu)適當(dang)的(de)模具溫度會(hui)導(dao)致(zhi)鑄件尺(chi)寸不(bu)(bu)穩(wen)定(ding),在生(sheng)(sheng)產(chan)過(guo)程中頂出鑄件變形(xing),產(chan)生(sheng)(sheng)熱(re)壓(ya)力(li)、黏模、表面凹陷、內縮孔(kong)及熱(re)泡等缺陷。對(dui)生(sheng)(sheng)產(chan)周期(qi)也產(chan)生(sheng)(sheng)影響(xiang),如填充時(shi)間、冷卻時(shi)間及噴涂時(shi)間都產(chan)生(sheng)(sheng)不(bu)(bu)穩(wen)定(ding)的(de)變數(shu)。模具的(de)壽命也會(hui)因受到過(guo)冷過(guo)熱(re)的(de)沖擊而(er)導(dao)致(zhi)昂(ang)貴的(de)鋼材產(chan)生(sheng)(sheng)熱(re)裂,加速其老化(hua)。
在現代化的(de)工廠中(zhong),因應市場的(de)競爭,節省人力(li),提(ti)高品(pin)質(zhi),降(jiang)低成(cheng)本(ben)的(de)經營(ying)策(ce)略是刻不容緩的(de),模溫機的(de)使(shi)(shi)用,可使(shi)(shi)模具(ju)預熱時間減少,成(cheng)品(pin)表面(mian)質(zhi)量(liang)提(ti)升及可完全自(zi)動化生(sheng)產(chan)。提(ti)高模具(ju)壽(shou)命是提(ti)高生(sheng)產(chan)力(li)的(de)必要手(shou)段。
溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)控制機在(zai)(zai)其他行業(ye)的(de)運用則是(shi)設(she)備(bei)構成的(de)必然條(tiao)件,叫法也不同。在(zai)(zai)PVC片材(cai)輥輪(lun)控溫(wen)(wen)(wen)(wen)(wen)(wen)中(zhong)(zhong)叫油加熱器,在(zai)(zai)擠出機設(she)備(bei)中(zhong)(zhong)叫溫(wen)(wen)(wen)(wen)(wen)(wen)控裝(zhuang)置,在(zai)(zai)橡膠密煉機設(she)備(bei)中(zhong)(zhong)叫溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)控制系統(tong)或叫溫(wen)(wen)(wen)(wen)(wen)(wen)控機,這些(xie)設(she)備(bei)中(zhong)(zhong)基本(ben)上是(shi)一個先(xian)快速升(sheng)溫(wen)(wen)(wen)(wen)(wen)(wen),然后(hou)(hou)是(shi)保溫(wen)(wen)(wen)(wen)(wen)(wen)的(de)過程(cheng)。而在(zai)(zai)橡膠設(she)備(bei)中(zhong)(zhong)升(sheng)溫(wen)(wen)(wen)(wen)(wen)(wen)后(hou)(hou)還需要長期執行一個降溫(wen)(wen)(wen)(wen)(wen)(wen)冷卻的(de)過程(cheng)。?