模(mo)溫(wen)機(ji)又(you)叫模(mo)具溫(wen)度(du)控(kong)(kong)制(zhi)機(ji),廣(guang)泛應(ying)用于塑膠(jiao)成(cheng)型,導光板(ban)壓鑄(zhu),橡膠(jiao)輪(lun)胎、滾(gun)輪(lun),化工反應(ying)釜、粘合、密(mi)煉等各(ge)行(xing)各(ge)業。從廣(guang)義方(fang)面講,叫溫(wen)度(du)控(kong)(kong)制(zhi)設備,包含加溫(wen)和冷凍兩個(ge)方(fang)面的(de)溫(wen)度(du)控(kong)(kong)制(zhi)。
現(xian)在模(mo)(mo)溫(wen)(wen)機一般分水(shui)(shui)溫(wen)(wen)機、油(you)溫(wen)(wen)機控(kong)制的溫(wen)(wen)度(du)可(ke)以達到(dao)正(zheng)負0.1度(du)。標準(zhun)型水(shui)(shui)介質(zhi)(zhi)模(mo)(mo)溫(wen)(wen)機工作較(jiao)(jiao)高(gao)溫(wen)(wen)度(du)為120℃,高(gao)溫(wen)(wen)型水(shui)(shui)介質(zhi)(zhi)模(mo)(mo)溫(wen)(wen)機工作較(jiao)(jiao)高(gao)180℃。水(shui)(shui)式模(mo)(mo)溫(wen)(wen)機由于(yu)比較(jiao)(jiao)干凈,常用(yong)于(yu)光學鏡片、注塑成型等(deng)行(xing)業。
油(you)(you)式模溫(wen)(wen)機(ji)(ji)又叫油(you)(you)溫(wen)(wen)機(ji)(ji)或是油(you)(you)加熱(re)器,油(you)(you)式模溫(wen)(wen)機(ji)(ji)(油(you)(you)溫(wen)(wen)機(ji)(ji)):油(you)(you)式模溫(wen)(wen)機(ji)(ji)分(fen)為(wei)三(san)個等級(ji):標準型(xing)、高(gao)溫(wen)(wen)型(xing)、超高(gao)溫(wen)(wen)型(xing),較高(gao)工(gong)作(zuo)溫(wen)(wen)度(du)分(fen)別為(wei)180℃,300℃,350℃。
其工作原理(li):模溫機(ji)管(guan)路與模具油道連接構成(cheng)回(hui)路,導(dao)熱(re)油在泵的作用下(xia)進行循環。溫度(du)傳感(gan)器將數據(ju)傳送到控制系統,自動(dong)(dong)調整加(jia)熱(re)/冷卻動(dong)(dong)作,控制導(dao)熱(re)油溫度(du)。
模(mo)溫機在塑膠行業(ye)的運用比較普遍(bian),主要作用是:
1,提高產品(pin)的成型(xing)效率;
2,降低(di)不良品的產生;
3,提高(gao)產(chan)品的外(wai)觀,抑制產(chan)品的缺陷;
4,加(jia)快生產進度,降(jiang)低能耗(hao),節約能源。
模(mo)溫機在壓鑄行業的(de)運用也(ye)有很大(da)的(de)空間,特別是在鎂合(he)金,鋁合(he)金的(de)制造(zao)中,不(bu)(bu)平(ping)均或不(bu)(bu)適當的(de)模(mo)具溫度會導致(zhi)鑄件尺寸(cun)不(bu)(bu)穩定,在生(sheng)產(chan)過(guo)程中頂出鑄件變形,產(chan)生(sheng)熱(re)壓力、黏(nian)模(mo)、表面凹(ao)陷、內(nei)縮孔及熱(re)泡等(deng)缺陷。對生(sheng)產(chan)周期(qi)也(ye)產(chan)生(sheng)影響,如填充時間、冷(leng)卻時間及噴涂時間都產(chan)生(sheng)不(bu)(bu)穩定的(de)變數。模(mo)具的(de)壽(shou)命也(ye)會因受到過(guo)冷(leng)過(guo)熱(re)的(de)沖擊而(er)導致(zhi)昂貴的(de)鋼(gang)材(cai)產(chan)生(sheng)熱(re)裂(lie),加速其(qi)老化(hua)。
在現(xian)代化的(de)工廠中,因應市(shi)場(chang)的(de)競(jing)爭,節(jie)省人力(li),提(ti)高品質,降低成(cheng)本的(de)經營策略是(shi)刻不容緩的(de),模溫機的(de)使用,可使模具(ju)預熱時間減少,成(cheng)品表(biao)面質量提(ti)升及(ji)可完全自(zi)動化生(sheng)產。提(ti)高模具(ju)壽(shou)命是(shi)提(ti)高生(sheng)產力(li)的(de)必(bi)要手段。
溫(wen)(wen)(wen)度(du)控(kong)(kong)制(zhi)機(ji)在其(qi)他行(xing)業的(de)(de)運用則(ze)是設備(bei)(bei)構成的(de)(de)必然(ran)條件,叫(jiao)(jiao)法也不同。在PVC片(pian)材輥輪控(kong)(kong)溫(wen)(wen)(wen)中(zhong)(zhong)(zhong)叫(jiao)(jiao)油加熱器(qi),在擠出機(ji)設備(bei)(bei)中(zhong)(zhong)(zhong)叫(jiao)(jiao)溫(wen)(wen)(wen)控(kong)(kong)裝(zhuang)置,在橡(xiang)膠(jiao)(jiao)密煉機(ji)設備(bei)(bei)中(zhong)(zhong)(zhong)叫(jiao)(jiao)溫(wen)(wen)(wen)度(du)控(kong)(kong)制(zhi)系(xi)統(tong)或(huo)叫(jiao)(jiao)溫(wen)(wen)(wen)控(kong)(kong)機(ji),這(zhe)些設備(bei)(bei)中(zhong)(zhong)(zhong)基本上是一個先快速升(sheng)溫(wen)(wen)(wen),然(ran)后(hou)是保溫(wen)(wen)(wen)的(de)(de)過(guo)程。而(er)在橡(xiang)膠(jiao)(jiao)設備(bei)(bei)中(zhong)(zhong)(zhong)升(sheng)溫(wen)(wen)(wen)后(hou)還需(xu)要長期執行(xing)一個降溫(wen)(wen)(wen)冷(leng)卻的(de)(de)過(guo)程。?