模(mo)溫(wen)(wen)(wen)機(ji)又叫模(mo)具溫(wen)(wen)(wen)度(du)(du)控制(zhi)機(ji),廣(guang)泛(fan)應(ying)用于塑(su)膠(jiao)成型,導光板壓鑄,橡膠(jiao)輪胎、滾輪,化工反應(ying)釜、粘合、密煉等各行各業。從廣(guang)義方(fang)面(mian)講,叫溫(wen)(wen)(wen)度(du)(du)控制(zhi)設備,包含加溫(wen)(wen)(wen)和冷凍兩個方(fang)面(mian)的溫(wen)(wen)(wen)度(du)(du)控制(zhi)。
現(xian)在模溫(wen)(wen)(wen)機(ji)一般分水(shui)溫(wen)(wen)(wen)機(ji)、油溫(wen)(wen)(wen)機(ji)控制的(de)溫(wen)(wen)(wen)度(du)可以達到正(zheng)負0.1度(du)。標(biao)準型水(shui)介質模溫(wen)(wen)(wen)機(ji)工(gong)作(zuo)較(jiao)高(gao)(gao)溫(wen)(wen)(wen)度(du)為120℃,高(gao)(gao)溫(wen)(wen)(wen)型水(shui)介質模溫(wen)(wen)(wen)機(ji)工(gong)作(zuo)較(jiao)高(gao)(gao)180℃。水(shui)式(shi)模溫(wen)(wen)(wen)機(ji)由于(yu)比較(jiao)干凈,常用于(yu)光學鏡片(pian)、注塑成型等行業。
油(you)式(shi)(shi)模(mo)溫(wen)(wen)機(ji)又叫油(you)溫(wen)(wen)機(ji)或是油(you)加熱(re)器,油(you)式(shi)(shi)模(mo)溫(wen)(wen)機(ji)(油(you)溫(wen)(wen)機(ji)):油(you)式(shi)(shi)模(mo)溫(wen)(wen)機(ji)分為三(san)個(ge)等級:標準(zhun)型(xing)、高溫(wen)(wen)型(xing)、超(chao)高溫(wen)(wen)型(xing),較高工作溫(wen)(wen)度(du)分別為180℃,300℃,350℃。
其(qi)工作原理(li):模(mo)溫機管路與模(mo)具(ju)油(you)(you)道連接構成回(hui)路,導熱油(you)(you)在(zai)泵的作用下(xia)進行(xing)循環(huan)。溫度(du)傳(chuan)感器將數據傳(chuan)送(song)到(dao)控制系統,自(zi)動調整加(jia)熱/冷卻(que)動作,控制導熱油(you)(you)溫度(du)。
模溫(wen)機在塑(su)膠行業的(de)運用比較普遍(bian),主要(yao)作用是(shi):
1,提高產品的成(cheng)型效率;
2,降低不良品的(de)產生;
3,提高產(chan)品(pin)的外觀,抑制產(chan)品(pin)的缺陷;
4,加快生產(chan)進度,降低能耗,節(jie)約能源。
模(mo)溫機在(zai)壓(ya)鑄行業的運用也有(you)很大(da)的空間(jian),特別(bie)是在(zai)鎂合金,鋁合金的制(zhi)造(zao)中(zhong),不平均或(huo)不適當的模(mo)具溫度會導致鑄件(jian)尺寸(cun)不穩定,在(zai)生(sheng)(sheng)產(chan)過(guo)(guo)(guo)程中(zhong)頂出(chu)鑄件(jian)變(bian)形,產(chan)生(sheng)(sheng)熱(re)壓(ya)力(li)、黏模(mo)、表面凹陷、內縮孔及熱(re)泡等缺(que)陷。對生(sheng)(sheng)產(chan)周期也產(chan)生(sheng)(sheng)影響,如填充時間(jian)、冷(leng)卻時間(jian)及噴(pen)涂(tu)時間(jian)都產(chan)生(sheng)(sheng)不穩定的變(bian)數(shu)。模(mo)具的壽命也會因受到過(guo)(guo)(guo)冷(leng)過(guo)(guo)(guo)熱(re)的沖擊而導致昂貴(gui)的鋼(gang)材產(chan)生(sheng)(sheng)熱(re)裂,加速(su)其老化。
在現代化(hua)的(de)工廠(chang)中,因應市場的(de)競(jing)爭,節省人(ren)力,提(ti)(ti)高品質,降低(di)成本的(de)經營(ying)策略是(shi)刻(ke)不容緩的(de),模溫機的(de)使用,可(ke)使模具預熱時間減少(shao),成品表面質量提(ti)(ti)升及可(ke)完(wan)全自動(dong)化(hua)生產(chan)。提(ti)(ti)高模具壽命是(shi)提(ti)(ti)高生產(chan)力的(de)必要手段。
溫(wen)(wen)(wen)(wen)(wen)(wen)度控(kong)制機(ji)在(zai)其他行(xing)業的運用則(ze)是(shi)(shi)設(she)備構成的必然條件,叫(jiao)法(fa)也(ye)不同。在(zai)PVC片材輥輪控(kong)溫(wen)(wen)(wen)(wen)(wen)(wen)中叫(jiao)油加熱器(qi),在(zai)擠出機(ji)設(she)備中叫(jiao)溫(wen)(wen)(wen)(wen)(wen)(wen)控(kong)裝置,在(zai)橡膠密(mi)煉機(ji)設(she)備中叫(jiao)溫(wen)(wen)(wen)(wen)(wen)(wen)度控(kong)制系統或(huo)叫(jiao)溫(wen)(wen)(wen)(wen)(wen)(wen)控(kong)機(ji),這些(xie)設(she)備中基本上是(shi)(shi)一(yi)個先快速(su)升(sheng)溫(wen)(wen)(wen)(wen)(wen)(wen),然后(hou)是(shi)(shi)保溫(wen)(wen)(wen)(wen)(wen)(wen)的過(guo)程(cheng)(cheng)。而在(zai)橡膠設(she)備中升(sheng)溫(wen)(wen)(wen)(wen)(wen)(wen)后(hou)還需要長期執行(xing)一(yi)個降(jiang)溫(wen)(wen)(wen)(wen)(wen)(wen)冷卻的過(guo)程(cheng)(cheng)。?