模(mo)(mo)溫(wen)機(ji)又叫模(mo)(mo)具溫(wen)度(du)控(kong)制(zhi)機(ji),廣(guang)泛(fan)應用于塑(su)膠(jiao)成(cheng)型,導光板壓鑄,橡膠(jiao)輪(lun)胎、滾(gun)輪(lun),化(hua)工反應釜、粘合、密煉等各(ge)行各(ge)業。從廣(guang)義方面(mian)講(jiang),叫溫(wen)度(du)控(kong)制(zhi)設備,包含加(jia)溫(wen)和冷凍兩個方面(mian)的(de)溫(wen)度(du)控(kong)制(zhi)。
現(xian)在模溫(wen)(wen)(wen)(wen)機一般分水(shui)溫(wen)(wen)(wen)(wen)機、油(you)溫(wen)(wen)(wen)(wen)機控制的溫(wen)(wen)(wen)(wen)度(du)(du)可以達到正(zheng)負0.1度(du)(du)。標準型(xing)(xing)(xing)水(shui)介質模溫(wen)(wen)(wen)(wen)機工作較高溫(wen)(wen)(wen)(wen)度(du)(du)為120℃,高溫(wen)(wen)(wen)(wen)型(xing)(xing)(xing)水(shui)介質模溫(wen)(wen)(wen)(wen)機工作較高180℃。水(shui)式(shi)模溫(wen)(wen)(wen)(wen)機由于(yu)比較干凈,常用于(yu)光學鏡片、注(zhu)塑成型(xing)(xing)(xing)等行業。
油(you)(you)式(shi)模(mo)溫(wen)(wen)機(ji)又叫(jiao)油(you)(you)溫(wen)(wen)機(ji)或是油(you)(you)加熱器(qi),油(you)(you)式(shi)模(mo)溫(wen)(wen)機(ji)(油(you)(you)溫(wen)(wen)機(ji)):油(you)(you)式(shi)模(mo)溫(wen)(wen)機(ji)分為三個等級:標準型、高(gao)溫(wen)(wen)型、超高(gao)溫(wen)(wen)型,較高(gao)工作溫(wen)(wen)度分別(bie)為180℃,300℃,350℃。
其工作原理(li):模(mo)溫(wen)機管路與(yu)模(mo)具(ju)油道(dao)連(lian)接構成回路,導熱油在泵的作用下進(jin)行循(xun)環。溫(wen)度傳(chuan)感器將數據傳(chuan)送(song)到控(kong)制系統(tong),自動調整加(jia)熱/冷卻動作,控(kong)制導熱油溫(wen)度。
模溫機在(zai)塑膠行業的運用(yong)比較(jiao)普遍(bian),主要(yao)作(zuo)用(yong)是:
1,提高產品的成型(xing)效率;
2,降低(di)不良品(pin)的(de)產生;
3,提高產(chan)品的(de)外觀(guan),抑制(zhi)產(chan)品的(de)缺陷(xian);
4,加快生產進度,降低能耗,節約能源。
模(mo)溫機在壓鑄行(xing)業的(de)運用也(ye)有很大的(de)空間,特別(bie)是在鎂(mei)合(he)金(jin)(jin),鋁合(he)金(jin)(jin)的(de)制(zhi)造(zao)中,不(bu)平(ping)均(jun)或不(bu)適當的(de)模(mo)具溫度會導致鑄件尺寸不(bu)穩(wen)定,在生(sheng)(sheng)產(chan)過程中頂出鑄件變形,產(chan)生(sheng)(sheng)熱(re)壓力、黏模(mo)、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(ye)產(chan)生(sheng)(sheng)影(ying)響,如填(tian)充時間、冷(leng)卻(que)時間及噴涂時間都(dou)產(chan)生(sheng)(sheng)不(bu)穩(wen)定的(de)變數。模(mo)具的(de)壽命也(ye)會因受到(dao)過冷(leng)過熱(re)的(de)沖擊而導致昂貴的(de)鋼材產(chan)生(sheng)(sheng)熱(re)裂,加速其老化。
在現代化(hua)的工廠中,因應市場的競爭,節省人力,提(ti)高(gao)(gao)品(pin)質,降(jiang)低成(cheng)本的經營策略是刻不(bu)容(rong)緩的,模溫(wen)機的使用,可(ke)使模具預熱時(shi)間減少,成(cheng)品(pin)表面質量提(ti)升及可(ke)完(wan)全自動(dong)化(hua)生產(chan)。提(ti)高(gao)(gao)模具壽(shou)命(ming)是提(ti)高(gao)(gao)生產(chan)力的必要手段。
溫(wen)度控(kong)(kong)制(zhi)機在(zai)(zai)(zai)其(qi)他行業的運用則(ze)是(shi)設(she)(she)備構成的必(bi)然條件,叫(jiao)(jiao)法也(ye)不同。在(zai)(zai)(zai)PVC片材輥輪控(kong)(kong)溫(wen)中(zhong)叫(jiao)(jiao)油加熱器,在(zai)(zai)(zai)擠出(chu)機設(she)(she)備中(zhong)叫(jiao)(jiao)溫(wen)控(kong)(kong)裝(zhuang)置(zhi),在(zai)(zai)(zai)橡(xiang)膠密煉機設(she)(she)備中(zhong)叫(jiao)(jiao)溫(wen)度控(kong)(kong)制(zhi)系統(tong)或(huo)叫(jiao)(jiao)溫(wen)控(kong)(kong)機,這些設(she)(she)備中(zhong)基本(ben)上是(shi)一個先(xian)快速升溫(wen),然后(hou)是(shi)保溫(wen)的過程。而在(zai)(zai)(zai)橡(xiang)膠設(she)(she)備中(zhong)升溫(wen)后(hou)還(huan)需要(yao)長期執(zhi)行一個降溫(wen)冷卻(que)的過程。?