燃氣模溫機又叫模具溫度控制機,廣泛應用于塑膠成型,導光板壓鑄,橡膠輪胎、滾輪,化工反應釜、粘合、密煉等各行各業。從廣義方面講,叫溫度控制設備,包含加溫和冷凍兩個方面的溫度控制。
現(xian)在模溫(wen)(wen)(wen)機(ji)一(yi)般分水(shui)(shui)溫(wen)(wen)(wen)機(ji)、油溫(wen)(wen)(wen)機(ji)控制的(de)溫(wen)(wen)(wen)度可以達到正負0.1度。標準(zhun)型水(shui)(shui)介(jie)質(zhi)(zhi)模溫(wen)(wen)(wen)機(ji)工(gong)作較(jiao)高(gao)溫(wen)(wen)(wen)度為120℃,高(gao)溫(wen)(wen)(wen)型水(shui)(shui)介(jie)質(zhi)(zhi)模溫(wen)(wen)(wen)機(ji)工(gong)作較(jiao)高(gao)180℃。水(shui)(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(jing)片、注塑成型等行業。
油(you)(you)式(shi)模(mo)(mo)溫(wen)(wen)(wen)(wen)機(ji)又叫油(you)(you)溫(wen)(wen)(wen)(wen)機(ji)或(huo)是油(you)(you)加(jia)熱器,油(you)(you)式(shi)模(mo)(mo)溫(wen)(wen)(wen)(wen)機(ji)(油(you)(you)溫(wen)(wen)(wen)(wen)機(ji)):油(you)(you)式(shi)模(mo)(mo)溫(wen)(wen)(wen)(wen)機(ji)分(fen)為三(san)個等級:標準型(xing)、高(gao)溫(wen)(wen)(wen)(wen)型(xing)、超高(gao)溫(wen)(wen)(wen)(wen)型(xing),較高(gao)工作溫(wen)(wen)(wen)(wen)度(du)分(fen)別(bie)為180℃,300℃,350℃。
其工作原理(li):模(mo)溫(wen)(wen)機管路與模(mo)具(ju)油道連接構成(cheng)回(hui)路,導熱油在泵(beng)的作用下進(jin)行循環。溫(wen)(wen)度傳感器將數據傳送到控制(zhi)系統,自(zi)動調整加熱/冷(leng)卻動作,控制(zhi)導熱油溫(wen)(wen)度。
模(mo)溫機(ji)在塑膠行(xing)業(ye)的運用(yong)比較普遍,主(zhu)要作用(yong)是:
1,提(ti)高產品的成型效率;
2,降低不良品的產生;
3,提高產(chan)(chan)品的外觀,抑制產(chan)(chan)品的缺陷;
4,加快(kuai)生產進度,降(jiang)低能(neng)耗,節約能(neng)源(yuan)。
模溫(wen)機在壓鑄(zhu)(zhu)行業的運用也(ye)有很大(da)的空間,特(te)別是在鎂合金,鋁合金的制造(zao)中(zhong),不(bu)(bu)平均或不(bu)(bu)適(shi)當(dang)的模具(ju)溫(wen)度(du)會(hui)導致(zhi)鑄(zhu)(zhu)件尺寸不(bu)(bu)穩定,在生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)過(guo)(guo)程中(zhong)頂出鑄(zhu)(zhu)件變形(xing),產(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)熱壓力、黏模、表(biao)面凹陷(xian)(xian)、內縮孔及(ji)熱泡等缺陷(xian)(xian)。對生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)周期也(ye)產(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)影(ying)響,如填充時間、冷卻(que)時間及(ji)噴涂(tu)時間都(dou)產(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)不(bu)(bu)穩定的變數。模具(ju)的壽命(ming)也(ye)會(hui)因受到過(guo)(guo)冷過(guo)(guo)熱的沖擊(ji)而導致(zhi)昂貴的鋼材產(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)熱裂,加速其老(lao)化。
在現代化(hua)的(de)工廠(chang)中,因應市場的(de)競爭,節(jie)省人力,提高品質,降低成本的(de)經(jing)營策(ce)略是(shi)刻不容(rong)緩的(de),模溫(wen)機的(de)使用,可使模具預熱時間減少(shao),成品表面質量(liang)提升及可完全自(zi)動化(hua)生產。提高模具壽命是(shi)提高生產力的(de)必要手段。
溫(wen)(wen)度(du)控(kong)(kong)制機(ji)(ji)在(zai)其(qi)他行業(ye)的(de)運(yun)用則是設(she)(she)備(bei)構成的(de)必然條件,叫(jiao)法也不同。在(zai)PVC片(pian)材輥輪(lun)控(kong)(kong)溫(wen)(wen)中(zhong)叫(jiao)油加熱器,在(zai)擠出機(ji)(ji)設(she)(she)備(bei)中(zhong)叫(jiao)溫(wen)(wen)控(kong)(kong)裝置,在(zai)橡膠(jiao)密煉機(ji)(ji)設(she)(she)備(bei)中(zhong)叫(jiao)溫(wen)(wen)度(du)控(kong)(kong)制系統或叫(jiao)溫(wen)(wen)控(kong)(kong)機(ji)(ji),這些設(she)(she)備(bei)中(zhong)基本(ben)上是一(yi)個(ge)先快速升溫(wen)(wen),然后(hou)是保(bao)溫(wen)(wen)的(de)過(guo)程(cheng)。而(er)在(zai)橡膠(jiao)設(she)(she)備(bei)中(zhong)升溫(wen)(wen)后(hou)還需要(yao)長期執行一(yi)個(ge)降溫(wen)(wen)冷卻的(de)過(guo)程(cheng)。?