模溫(wen)機又叫模具溫(wen)度控制(zhi)機,廣泛應用于(yu)塑(su)膠成型,導光板壓鑄,橡膠輪(lun)胎、滾輪(lun),化工反應釜、粘合(he)、密(mi)煉等各行各業。從廣義方面講,叫溫(wen)度控制(zhi)設(she)備(bei),包含加溫(wen)和冷凍兩個(ge)方面的溫(wen)度控制(zhi)。
現在模(mo)溫(wen)(wen)(wen)機(ji)(ji)一般分水(shui)(shui)溫(wen)(wen)(wen)機(ji)(ji)、油(you)溫(wen)(wen)(wen)機(ji)(ji)控制的溫(wen)(wen)(wen)度可以達到正(zheng)負0.1度。標準型(xing)水(shui)(shui)介(jie)質(zhi)模(mo)溫(wen)(wen)(wen)機(ji)(ji)工(gong)作較高(gao)溫(wen)(wen)(wen)度為120℃,高(gao)溫(wen)(wen)(wen)型(xing)水(shui)(shui)介(jie)質(zhi)模(mo)溫(wen)(wen)(wen)機(ji)(ji)工(gong)作較高(gao)180℃。水(shui)(shui)式模(mo)溫(wen)(wen)(wen)機(ji)(ji)由(you)于(yu)比(bi)較干凈,常(chang)用(yong)于(yu)光學鏡片(pian)、注塑成型(xing)等行業。
油(you)(you)(you)式模(mo)溫(wen)(wen)(wen)(wen)機又叫(jiao)油(you)(you)(you)溫(wen)(wen)(wen)(wen)機或(huo)是油(you)(you)(you)加(jia)熱(re)器(qi),油(you)(you)(you)式模(mo)溫(wen)(wen)(wen)(wen)機(油(you)(you)(you)溫(wen)(wen)(wen)(wen)機):油(you)(you)(you)式模(mo)溫(wen)(wen)(wen)(wen)機分為三個等級:標(biao)準型、高溫(wen)(wen)(wen)(wen)型、超高溫(wen)(wen)(wen)(wen)型,較高工作溫(wen)(wen)(wen)(wen)度分別為180℃,300℃,350℃。
其工作原理:模(mo)溫(wen)(wen)機管(guan)路與模(mo)具油(you)道連接構成(cheng)回路,導(dao)熱(re)油(you)在泵的作用下進行循環。溫(wen)(wen)度傳感器將數據傳送到控(kong)(kong)制系(xi)統,自(zi)動調整加熱(re)/冷卻動作,控(kong)(kong)制導(dao)熱(re)油(you)溫(wen)(wen)度。
模溫機(ji)在(zai)塑膠(jiao)行業的運用(yong)比較普遍(bian),主要作用(yong)是(shi):
1,提高產品(pin)的成型效率;
2,降低不良(liang)品的產生;
3,提(ti)高產(chan)品(pin)的外(wai)觀,抑制(zhi)產(chan)品(pin)的缺陷;
4,加快生產進度,降低(di)能(neng)耗,節約能(neng)源。
模(mo)溫機在壓鑄(zhu)行(xing)業的(de)(de)運(yun)用也有(you)很大的(de)(de)空間(jian),特別(bie)是(shi)在鎂合金,鋁合金的(de)(de)制(zhi)造中,不(bu)(bu)(bu)平均(jun)或不(bu)(bu)(bu)適(shi)當的(de)(de)模(mo)具(ju)溫度(du)會導致鑄(zhu)件(jian)尺寸不(bu)(bu)(bu)穩定,在生(sheng)(sheng)(sheng)產(chan)過程中頂(ding)出鑄(zhu)件(jian)變形,產(chan)生(sheng)(sheng)(sheng)熱(re)壓力、黏(nian)模(mo)、表面凹陷、內縮孔及熱(re)泡等缺陷。對生(sheng)(sheng)(sheng)產(chan)周期也產(chan)生(sheng)(sheng)(sheng)影響,如填充時間(jian)、冷(leng)(leng)卻時間(jian)及噴涂時間(jian)都產(chan)生(sheng)(sheng)(sheng)不(bu)(bu)(bu)穩定的(de)(de)變數。模(mo)具(ju)的(de)(de)壽命也會因受到過冷(leng)(leng)過熱(re)的(de)(de)沖擊而(er)導致昂貴的(de)(de)鋼材產(chan)生(sheng)(sheng)(sheng)熱(re)裂,加(jia)速(su)其老(lao)化。
在現代化(hua)的(de)工廠中,因應(ying)市場的(de)競(jing)爭,節省人力,提(ti)(ti)高(gao)品(pin)質,降低(di)成(cheng)本的(de)經營策略是(shi)刻(ke)不容緩的(de),模溫機的(de)使用,可(ke)使模具預(yu)熱(re)時間減少,成(cheng)品(pin)表面質量提(ti)(ti)升及(ji)可(ke)完全(quan)自動化(hua)生(sheng)產。提(ti)(ti)高(gao)模具壽命是(shi)提(ti)(ti)高(gao)生(sheng)產力的(de)必要手段。
溫(wen)(wen)度控(kong)(kong)制機在(zai)其他(ta)行業(ye)的運用則是設備(bei)構成的必然條件,叫(jiao)法也不同。在(zai)PVC片材(cai)輥輪控(kong)(kong)溫(wen)(wen)中(zhong)叫(jiao)油(you)加熱器,在(zai)擠(ji)出機設備(bei)中(zhong)叫(jiao)溫(wen)(wen)控(kong)(kong)裝置,在(zai)橡(xiang)膠密煉機設備(bei)中(zhong)叫(jiao)溫(wen)(wen)度控(kong)(kong)制系統(tong)或叫(jiao)溫(wen)(wen)控(kong)(kong)機,這些設備(bei)中(zhong)基本上(shang)是一個(ge)先快速升(sheng)溫(wen)(wen),然后是保溫(wen)(wen)的過程。而在(zai)橡(xiang)膠設備(bei)中(zhong)升(sheng)溫(wen)(wen)后還需要長期(qi)執行一個(ge)降溫(wen)(wen)冷卻(que)的過程。?