模溫(wen)機又叫模具(ju)溫(wen)度控制(zhi)機,廣泛應(ying)用(yong)于塑膠成型,導光板壓鑄,橡膠輪胎、滾(gun)輪,化工(gong)反應(ying)釜、粘合、密煉(lian)等各(ge)行各(ge)業。從廣義方(fang)面(mian)講,叫溫(wen)度控制(zhi)設備,包含加溫(wen)和冷凍兩(liang)個方(fang)面(mian)的(de)溫(wen)度控制(zhi)。
現(xian)在模溫(wen)(wen)(wen)(wen)機(ji)(ji)一(yi)般分水(shui)(shui)溫(wen)(wen)(wen)(wen)機(ji)(ji)、油溫(wen)(wen)(wen)(wen)機(ji)(ji)控制(zhi)的溫(wen)(wen)(wen)(wen)度(du)可以達到正負0.1度(du)。標(biao)準型(xing)(xing)水(shui)(shui)介質(zhi)模溫(wen)(wen)(wen)(wen)機(ji)(ji)工(gong)作較(jiao)高(gao)(gao)溫(wen)(wen)(wen)(wen)度(du)為120℃,高(gao)(gao)溫(wen)(wen)(wen)(wen)型(xing)(xing)水(shui)(shui)介質(zhi)模溫(wen)(wen)(wen)(wen)機(ji)(ji)工(gong)作較(jiao)高(gao)(gao)180℃。水(shui)(shui)式模溫(wen)(wen)(wen)(wen)機(ji)(ji)由于(yu)比較(jiao)干凈,常用于(yu)光學鏡片、注(zhu)塑成型(xing)(xing)等行業。
油(you)式(shi)模溫(wen)(wen)(wen)機又叫油(you)溫(wen)(wen)(wen)機或是油(you)加熱器,油(you)式(shi)模溫(wen)(wen)(wen)機(油(you)溫(wen)(wen)(wen)機):油(you)式(shi)模溫(wen)(wen)(wen)機分(fen)為三個(ge)等級:標準型(xing)(xing)、高溫(wen)(wen)(wen)型(xing)(xing)、超高溫(wen)(wen)(wen)型(xing)(xing),較高工(gong)作溫(wen)(wen)(wen)度(du)分(fen)別為180℃,300℃,350℃。
其工作原理(li):模溫(wen)(wen)機管路與模具油(you)道連(lian)接(jie)構成(cheng)回路,導熱(re)(re)油(you)在(zai)泵的作用下進行循環。溫(wen)(wen)度傳感器將數據傳送到(dao)控(kong)(kong)制系統(tong),自動(dong)調整(zheng)加(jia)熱(re)(re)/冷卻動(dong)作,控(kong)(kong)制導熱(re)(re)油(you)溫(wen)(wen)度。
模溫(wen)機在(zai)塑膠行業的運用比較普(pu)遍,主(zhu)要作用是:
1,提(ti)高(gao)產品的成型效(xiao)率;
2,降低不(bu)良(liang)品的產(chan)生;
3,提高(gao)產品的外觀,抑制(zhi)產品的缺陷;
4,加(jia)快(kuai)生產進(jin)度,降低(di)能耗(hao),節約能源。
模溫機(ji)在壓鑄行業的(de)運用也(ye)有很大的(de)空間(jian),特別是在鎂(mei)合(he)金,鋁合(he)金的(de)制造(zao)中(zhong),不(bu)(bu)平均或不(bu)(bu)適(shi)當的(de)模具(ju)溫度(du)會導致(zhi)鑄件尺寸不(bu)(bu)穩(wen)定,在生(sheng)(sheng)(sheng)產(chan)過程中(zhong)頂出鑄件變形(xing),產(chan)生(sheng)(sheng)(sheng)熱壓力、黏(nian)模、表面凹陷(xian)、內縮(suo)孔及(ji)熱泡等(deng)缺(que)陷(xian)。對生(sheng)(sheng)(sheng)產(chan)周(zhou)期也(ye)產(chan)生(sheng)(sheng)(sheng)影響(xiang),如填充時(shi)間(jian)、冷(leng)(leng)卻時(shi)間(jian)及(ji)噴(pen)涂時(shi)間(jian)都產(chan)生(sheng)(sheng)(sheng)不(bu)(bu)穩(wen)定的(de)變數。模具(ju)的(de)壽命也(ye)會因受到過冷(leng)(leng)過熱的(de)沖擊而導致(zhi)昂貴的(de)鋼(gang)材產(chan)生(sheng)(sheng)(sheng)熱裂,加(jia)速其老化(hua)。
在現代化(hua)的(de)工廠中,因(yin)應市(shi)場(chang)的(de)競(jing)爭(zheng),節省(sheng)人力,提(ti)高品質,降低成本的(de)經營策略是(shi)刻不容緩的(de),模(mo)溫機的(de)使(shi)用,可使(shi)模(mo)具預(yu)熱(re)時間(jian)減(jian)少,成品表面質量提(ti)升及(ji)可完全自動(dong)化(hua)生產。提(ti)高模(mo)具壽命是(shi)提(ti)高生產力的(de)必要手(shou)段。
溫(wen)(wen)(wen)度(du)控(kong)制機(ji)在(zai)其(qi)他(ta)行業(ye)的運用則是(shi)設備(bei)構成(cheng)的必然(ran)條件,叫(jiao)法也不同。在(zai)PVC片材輥輪(lun)控(kong)溫(wen)(wen)(wen)中(zhong)(zhong)叫(jiao)油(you)加熱器,在(zai)擠出(chu)機(ji)設備(bei)中(zhong)(zhong)叫(jiao)溫(wen)(wen)(wen)控(kong)裝置,在(zai)橡膠(jiao)密煉機(ji)設備(bei)中(zhong)(zhong)叫(jiao)溫(wen)(wen)(wen)度(du)控(kong)制系統或叫(jiao)溫(wen)(wen)(wen)控(kong)機(ji),這些設備(bei)中(zhong)(zhong)基(ji)本(ben)上(shang)是(shi)一個(ge)先快(kuai)速升(sheng)溫(wen)(wen)(wen),然(ran)后是(shi)保溫(wen)(wen)(wen)的過程。而在(zai)橡膠(jiao)設備(bei)中(zhong)(zhong)升(sheng)溫(wen)(wen)(wen)后還需要長期執行一個(ge)降溫(wen)(wen)(wen)冷卻的過程。?