模溫(wen)機又叫(jiao)(jiao)模具溫(wen)度控(kong)制(zhi)機,廣(guang)泛(fan)應用(yong)于塑膠成型,導光板壓鑄,橡膠輪胎、滾輪,化工反應釜、粘合(he)、密(mi)煉等各(ge)行(xing)各(ge)業。從廣(guang)義方面講,叫(jiao)(jiao)溫(wen)度控(kong)制(zhi)設備,包含加溫(wen)和冷凍兩(liang)個方面的溫(wen)度控(kong)制(zhi)。
現(xian)在模溫(wen)(wen)機(ji)(ji)一(yi)般(ban)分水溫(wen)(wen)機(ji)(ji)、油溫(wen)(wen)機(ji)(ji)控制的溫(wen)(wen)度(du)(du)可(ke)以達(da)到正負0.1度(du)(du)。標準型(xing)(xing)水介質(zhi)模溫(wen)(wen)機(ji)(ji)工(gong)(gong)作(zuo)較高(gao)溫(wen)(wen)度(du)(du)為120℃,高(gao)溫(wen)(wen)型(xing)(xing)水介質(zhi)模溫(wen)(wen)機(ji)(ji)工(gong)(gong)作(zuo)較高(gao)180℃。水式模溫(wen)(wen)機(ji)(ji)由(you)于(yu)(yu)比較干(gan)凈(jing),常用(yong)于(yu)(yu)光學鏡片(pian)、注塑成型(xing)(xing)等(deng)行業。
油(you)式(shi)模(mo)溫(wen)機又(you)叫油(you)溫(wen)機或是油(you)加熱器,油(you)式(shi)模(mo)溫(wen)機(油(you)溫(wen)機):油(you)式(shi)模(mo)溫(wen)機分為(wei)三個等級:標準型、高(gao)(gao)溫(wen)型、超高(gao)(gao)溫(wen)型,較(jiao)高(gao)(gao)工作(zuo)溫(wen)度(du)分別為(wei)180℃,300℃,350℃。
其(qi)工(gong)作原理(li):模(mo)溫機管路(lu)與模(mo)具油道(dao)連(lian)接(jie)構成回路(lu),導熱(re)(re)油在泵的作用下進(jin)行(xing)循(xun)環。溫度傳感器(qi)將數據傳送到控制(zhi)系(xi)統,自動(dong)調(diao)整加熱(re)(re)/冷卻(que)動(dong)作,控制(zhi)導熱(re)(re)油溫度。
模溫機在塑膠行業的運(yun)用(yong)比較普(pu)遍(bian),主要作用(yong)是:
1,提高產品的(de)成型(xing)效率(lv);
2,降低不(bu)良品(pin)的產生;
3,提高產品(pin)的(de)外觀,抑制產品(pin)的(de)缺陷;
4,加(jia)快生產進度,降低能(neng)耗,節約能(neng)源。
模溫機在壓(ya)鑄行業的(de)運用也有(you)很(hen)大(da)的(de)空間(jian)(jian),特別是在鎂合(he)金(jin)(jin),鋁(lv)合(he)金(jin)(jin)的(de)制造中(zhong),不平均或不適當的(de)模具(ju)溫度(du)會(hui)(hui)導致鑄件(jian)尺寸不穩(wen)定(ding)(ding),在生(sheng)(sheng)產(chan)(chan)過(guo)程(cheng)中(zhong)頂出鑄件(jian)變形(xing),產(chan)(chan)生(sheng)(sheng)熱(re)(re)壓(ya)力(li)、黏模、表面凹(ao)陷、內縮(suo)孔(kong)及(ji)(ji)熱(re)(re)泡等缺陷。對生(sheng)(sheng)產(chan)(chan)周期也產(chan)(chan)生(sheng)(sheng)影響,如填充時間(jian)(jian)、冷(leng)卻時間(jian)(jian)及(ji)(ji)噴涂時間(jian)(jian)都產(chan)(chan)生(sheng)(sheng)不穩(wen)定(ding)(ding)的(de)變數。模具(ju)的(de)壽命也會(hui)(hui)因受到(dao)過(guo)冷(leng)過(guo)熱(re)(re)的(de)沖擊而導致昂(ang)貴的(de)鋼材產(chan)(chan)生(sheng)(sheng)熱(re)(re)裂,加速其老(lao)化。
在現代化(hua)的(de)(de)工廠(chang)中,因應市場(chang)的(de)(de)競(jing)爭(zheng),節省(sheng)人力(li)(li),提(ti)高(gao)品質,降(jiang)低(di)成本的(de)(de)經營策略是刻(ke)不容(rong)緩的(de)(de),模溫機(ji)的(de)(de)使(shi)用,可(ke)使(shi)模具(ju)預熱時間減(jian)少,成品表面質量提(ti)升(sheng)及可(ke)完全(quan)自動化(hua)生(sheng)產。提(ti)高(gao)模具(ju)壽命(ming)是提(ti)高(gao)生(sheng)產力(li)(li)的(de)(de)必要手段。
溫(wen)(wen)度控(kong)(kong)制機(ji)在其他(ta)行(xing)業的運用(yong)則(ze)是(shi)設備(bei)(bei)構成(cheng)的必(bi)然(ran)條(tiao)件,叫(jiao)法也不同。在PVC片材輥輪(lun)控(kong)(kong)溫(wen)(wen)中叫(jiao)油加熱(re)器,在擠出機(ji)設備(bei)(bei)中叫(jiao)溫(wen)(wen)控(kong)(kong)裝置,在橡(xiang)膠(jiao)密煉機(ji)設備(bei)(bei)中叫(jiao)溫(wen)(wen)度控(kong)(kong)制系統(tong)或叫(jiao)溫(wen)(wen)控(kong)(kong)機(ji),這些設備(bei)(bei)中基(ji)本(ben)上是(shi)一(yi)個(ge)先快速升(sheng)溫(wen)(wen),然(ran)后(hou)是(shi)保溫(wen)(wen)的過程。而在橡(xiang)膠(jiao)設備(bei)(bei)中升(sheng)溫(wen)(wen)后(hou)還需要長期執行(xing)一(yi)個(ge)降溫(wen)(wen)冷卻的過程。?