模溫(wen)(wen)機(ji)又叫(jiao)模具溫(wen)(wen)度(du)(du)(du)控(kong)(kong)制(zhi)機(ji),廣(guang)(guang)泛應用于塑(su)膠(jiao)成型(xing),導光板壓(ya)鑄,橡膠(jiao)輪胎、滾(gun)輪,化工反應釜、粘合(he)、密煉等各行各業。從(cong)廣(guang)(guang)義(yi)方面講,叫(jiao)溫(wen)(wen)度(du)(du)(du)控(kong)(kong)制(zhi)設備,包含加溫(wen)(wen)和冷(leng)凍兩個(ge)方面的溫(wen)(wen)度(du)(du)(du)控(kong)(kong)制(zhi)。
現在模溫(wen)機(ji)(ji)(ji)一般分(fen)水(shui)(shui)溫(wen)機(ji)(ji)(ji)、油溫(wen)機(ji)(ji)(ji)控制(zhi)的溫(wen)度可以達到正負0.1度。標準(zhun)型水(shui)(shui)介質(zhi)模溫(wen)機(ji)(ji)(ji)工(gong)作較(jiao)高溫(wen)度為120℃,高溫(wen)型水(shui)(shui)介質(zhi)模溫(wen)機(ji)(ji)(ji)工(gong)作較(jiao)高180℃。水(shui)(shui)式(shi)模溫(wen)機(ji)(ji)(ji)由(you)于(yu)比較(jiao)干凈,常用于(yu)光(guang)學鏡片(pian)、注塑成型等行(xing)業。
油式(shi)(shi)模(mo)溫(wen)(wen)(wen)機(ji)又叫油溫(wen)(wen)(wen)機(ji)或(huo)是油加熱器(qi),油式(shi)(shi)模(mo)溫(wen)(wen)(wen)機(ji)(油溫(wen)(wen)(wen)機(ji)):油式(shi)(shi)模(mo)溫(wen)(wen)(wen)機(ji)分為三個等級(ji):標準型(xing)、高(gao)(gao)溫(wen)(wen)(wen)型(xing)、超高(gao)(gao)溫(wen)(wen)(wen)型(xing),較高(gao)(gao)工作溫(wen)(wen)(wen)度分別為180℃,300℃,350℃。
其工(gong)作(zuo)原理:模溫(wen)機管路與(yu)模具油道連(lian)接構(gou)成回(hui)路,導熱油在泵的作(zuo)用下進行循環。溫(wen)度傳感器將數據(ju)傳送到控制(zhi)(zhi)系統(tong),自動調(diao)整(zheng)加熱/冷卻動作(zuo),控制(zhi)(zhi)導熱油溫(wen)度。
模溫機在塑膠行業(ye)的運用(yong)比較普遍,主要作用(yong)是:
1,提高產品的(de)成型效率;
2,降低不良品的產生;
3,提(ti)高(gao)產(chan)(chan)品的外(wai)觀,抑制產(chan)(chan)品的缺陷;
4,加快生(sheng)產進度,降低能(neng)耗,節約能(neng)源。
模(mo)溫(wen)機在(zai)壓鑄行業的(de)(de)運(yun)用(yong)也(ye)有很大的(de)(de)空(kong)間(jian)(jian),特別(bie)是(shi)在(zai)鎂(mei)合(he)金,鋁合(he)金的(de)(de)制造中(zhong),不平均(jun)或(huo)不適當的(de)(de)模(mo)具溫(wen)度會(hui)(hui)導(dao)(dao)致鑄件(jian)尺寸不穩(wen)定,在(zai)生(sheng)產過(guo)程中(zhong)頂(ding)出鑄件(jian)變形,產生(sheng)熱壓力、黏模(mo)、表面凹(ao)陷(xian)(xian)、內縮孔及熱泡等缺陷(xian)(xian)。對(dui)生(sheng)產周期也(ye)產生(sheng)影響,如填充(chong)時間(jian)(jian)、冷卻時間(jian)(jian)及噴涂(tu)時間(jian)(jian)都產生(sheng)不穩(wen)定的(de)(de)變數。模(mo)具的(de)(de)壽命也(ye)會(hui)(hui)因受(shou)到過(guo)冷過(guo)熱的(de)(de)沖擊而導(dao)(dao)致昂貴的(de)(de)鋼(gang)材產生(sheng)熱裂(lie),加速(su)其老化。
在現代化(hua)(hua)的(de)工廠中,因應市(shi)場的(de)競(jing)爭,節省(sheng)人力,提(ti)高品(pin)(pin)質(zhi),降(jiang)低成(cheng)本的(de)經營策(ce)略是刻不容緩的(de),模(mo)溫機的(de)使用,可使模(mo)具預(yu)熱時間減少,成(cheng)品(pin)(pin)表(biao)面質(zhi)量(liang)提(ti)升及可完全(quan)自動化(hua)(hua)生產。提(ti)高模(mo)具壽命是提(ti)高生產力的(de)必(bi)要手(shou)段。
溫(wen)(wen)(wen)度控(kong)制機(ji)在(zai)(zai)其他行(xing)(xing)業的運(yun)用則(ze)是(shi)設(she)(she)備(bei)構成的必然條件,叫(jiao)法也不同(tong)。在(zai)(zai)PVC片材(cai)輥輪(lun)控(kong)溫(wen)(wen)(wen)中(zhong)叫(jiao)油加(jia)熱器,在(zai)(zai)擠出機(ji)設(she)(she)備(bei)中(zhong)叫(jiao)溫(wen)(wen)(wen)控(kong)裝置,在(zai)(zai)橡膠密煉(lian)機(ji)設(she)(she)備(bei)中(zhong)叫(jiao)溫(wen)(wen)(wen)度控(kong)制系(xi)統或叫(jiao)溫(wen)(wen)(wen)控(kong)機(ji),這些設(she)(she)備(bei)中(zhong)基本上是(shi)一(yi)個先快速升溫(wen)(wen)(wen),然后是(shi)保(bao)溫(wen)(wen)(wen)的過(guo)程。而在(zai)(zai)橡膠設(she)(she)備(bei)中(zhong)升溫(wen)(wen)(wen)后還需要長期執行(xing)(xing)一(yi)個降溫(wen)(wen)(wen)冷(leng)卻的過(guo)程。?