模溫(wen)機(ji)又(you)叫(jiao)模具溫(wen)度控(kong)制機(ji),廣(guang)泛應用于(yu)塑膠(jiao)成(cheng)型,導光板壓(ya)鑄,橡膠(jiao)輪胎(tai)、滾(gun)輪,化工(gong)反應釜(fu)、粘合、密煉等各行各業。從廣(guang)義方(fang)面講,叫(jiao)溫(wen)度控(kong)制設備,包含加(jia)溫(wen)和冷凍兩個(ge)方(fang)面的溫(wen)度控(kong)制。
現(xian)在模(mo)(mo)溫(wen)機(ji)(ji)(ji)一般(ban)分(fen)水溫(wen)機(ji)(ji)(ji)、油溫(wen)機(ji)(ji)(ji)控制的(de)溫(wen)度(du)可以達到正(zheng)負0.1度(du)。標準(zhun)型水介質模(mo)(mo)溫(wen)機(ji)(ji)(ji)工(gong)作較(jiao)(jiao)高(gao)溫(wen)度(du)為120℃,高(gao)溫(wen)型水介質模(mo)(mo)溫(wen)機(ji)(ji)(ji)工(gong)作較(jiao)(jiao)高(gao)180℃。水式模(mo)(mo)溫(wen)機(ji)(ji)(ji)由于(yu)比較(jiao)(jiao)干凈,常用于(yu)光學鏡片、注塑(su)成型等行業。
油(you)(you)式(shi)模(mo)溫(wen)(wen)(wen)機(ji)(ji)又叫油(you)(you)溫(wen)(wen)(wen)機(ji)(ji)或(huo)是油(you)(you)加熱器,油(you)(you)式(shi)模(mo)溫(wen)(wen)(wen)機(ji)(ji)(油(you)(you)溫(wen)(wen)(wen)機(ji)(ji)):油(you)(you)式(shi)模(mo)溫(wen)(wen)(wen)機(ji)(ji)分(fen)為三個等級(ji):標(biao)準型(xing)、高溫(wen)(wen)(wen)型(xing)、超高溫(wen)(wen)(wen)型(xing),較(jiao)高工作溫(wen)(wen)(wen)度分(fen)別(bie)為180℃,300℃,350℃。
其工(gong)作(zuo)原(yuan)理(li):模溫機管路(lu)(lu)與模具油道連接構成回路(lu)(lu),導(dao)熱油在泵(beng)的作(zuo)用下(xia)進行循環。溫度傳感器將數(shu)據傳送(song)到控(kong)制系統(tong),自(zi)動調整加(jia)熱/冷(leng)卻動作(zuo),控(kong)制導(dao)熱油溫度。
模(mo)溫機(ji)在塑膠行(xing)業的運用比較普遍,主要作用是:
1,提高(gao)產品(pin)的成型(xing)效率(lv);
2,降低不良品(pin)的(de)產生;
3,提高產品的(de)外觀(guan),抑制產品的(de)缺(que)陷(xian);
4,加快生產進度(du),降低能耗,節(jie)約(yue)能源。
模(mo)溫機在(zai)(zai)壓(ya)鑄(zhu)行業(ye)的運用也有很大的空間(jian),特別是在(zai)(zai)鎂合(he)金,鋁合(he)金的制造中(zhong)(zhong),不(bu)(bu)平均或(huo)不(bu)(bu)適當(dang)的模(mo)具(ju)(ju)溫度會(hui)導致鑄(zhu)件尺寸不(bu)(bu)穩定(ding),在(zai)(zai)生(sheng)(sheng)產(chan)(chan)過程中(zhong)(zhong)頂出鑄(zhu)件變形,產(chan)(chan)生(sheng)(sheng)熱(re)(re)(re)壓(ya)力、黏模(mo)、表面凹陷(xian)(xian)、內縮孔及(ji)熱(re)(re)(re)泡等缺陷(xian)(xian)。對生(sheng)(sheng)產(chan)(chan)周期也產(chan)(chan)生(sheng)(sheng)影響,如填充時間(jian)、冷卻時間(jian)及(ji)噴涂時間(jian)都產(chan)(chan)生(sheng)(sheng)不(bu)(bu)穩定(ding)的變數。模(mo)具(ju)(ju)的壽命也會(hui)因受到過冷過熱(re)(re)(re)的沖(chong)擊而導致昂(ang)貴(gui)的鋼材產(chan)(chan)生(sheng)(sheng)熱(re)(re)(re)裂(lie),加速其老化。
在現代(dai)化的工廠中,因應市場的競爭,節省人(ren)力,提高(gao)品(pin)質,降低(di)成(cheng)本的經營策略(lve)是刻不容緩的,模溫(wen)機(ji)的使用(yong),可使模具預熱時(shi)間減少,成(cheng)品(pin)表(biao)面(mian)質量提升及可完全自(zi)動(dong)化生產。提高(gao)模具壽命是提高(gao)生產力的必要手段。
溫(wen)度(du)控(kong)(kong)制機(ji)在(zai)其他行業的運用(yong)則(ze)是(shi)設(she)備(bei)(bei)構成的必然條件,叫法(fa)也(ye)不同。在(zai)PVC片(pian)材(cai)輥(gun)輪控(kong)(kong)溫(wen)中(zhong)(zhong)叫油加熱器,在(zai)擠出機(ji)設(she)備(bei)(bei)中(zhong)(zhong)叫溫(wen)控(kong)(kong)裝置,在(zai)橡(xiang)膠密煉機(ji)設(she)備(bei)(bei)中(zhong)(zhong)叫溫(wen)度(du)控(kong)(kong)制系統(tong)或叫溫(wen)控(kong)(kong)機(ji),這些設(she)備(bei)(bei)中(zhong)(zhong)基本上是(shi)一個先快速升溫(wen),然后是(shi)保溫(wen)的過(guo)(guo)程。而(er)在(zai)橡(xiang)膠設(she)備(bei)(bei)中(zhong)(zhong)升溫(wen)后還需要長(chang)期執行一個降溫(wen)冷卻的過(guo)(guo)程。?