冷熱沖擊試驗機

輔(fu)助結構(gou)密封：門(men)(men)與箱(xiang)體(ti)之間(jian)采(cai)用(yong)(yong)雙層耐高(gao)溫(wen)高(gao)張性(xing)密封條以確保測(ce)試(shi)區的(de)密閉門(men)(men)把手：采(cai)用(yong)(yong)無反作(zuo)用(yong)(yong)門(men)(men)把手，定制集(ji)成電路三(san)溫(wen)測(ce)試(shi)設備，操作(zuo)更簡便樣品架移(yi)動(dong)方(fang)(fang)式：樣品架依靠(kao)安(an)裝(zhuang)箱(xiang)體(ti)底部(bu)的(de)直線往(wang)復(fu)驅動(dong)系(xi)統作(zuo)上下(xia)移(yi)動(dong)腳(jiao)輪(lun)：機器底部(bu)采(cai)用(yong)(yong)可固定式PU活動(dong)輪(lun)采(cai)用(yong)(yong)立式體(ti)、冷(leng)(leng)(leng)熱(re)兩箱(xiang)，采(cai)用(yong)(yong)提籃(lan)轉換(huan)試(shi)品所在實驗區域的(de)方(fang)(fang)法，達到冷(leng)(leng)(leng)熱(re)沖擊試(shi)驗目的(de)；這種結構(gou)較大限度減小了冷(leng)(leng)(leng)熱(re)沖擊時的(de)熱(re)負荷，縮短了溫(wen)度回復(fu)時間(jian)，集(ji)成電路三(san)溫(wen)測(ce)試(shi)設備，也是很(hen)可靠(kao)、很(hen)節能的(de)一種冷(leng)(leng)(leng)熱(re)沖擊的(de)方(fang)(fang)式。

冷(leng)熱沖擊試驗箱工作原理

兩箱式試(shi)驗箱通過(guo)機(ji)(ji)組的加(jia)(jia)熱(re)系統和制(zhi)冷系統，分別產生一(yi)個(ge)高溫(wen)(wen)(wen)(wen)(wen)(wen)環(huan)境（60℃~200℃）和一(yi)個(ge)低溫(wen)(wen)(wen)(wen)(wen)(wen)環(huan)境（-10℃~-80℃），根據溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)沖擊(ji)(ji)試(shi)驗的相(xiang)關要求，將(jiang)被試(shi)驗品(pin)放入(ru)指l定(ding)溫(wen)(wen)(wen)(wen)(wen)(wen)室(shi)(shi)(shi)的載(zai)物籃(lan)內(nei)，待兩溫(wen)(wen)(wen)(wen)(wen)(wen)室(shi)(shi)(shi)達到(dao)預(yu)(yu)設溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)且(qie)穩(wen)定(ding)時，通過(guo)傳動(dong)(dong)機(ji)(ji)構牽動(dong)(dong)載(zai)物籃(lan)，實現(xian)籃(lan)內(nei)被測(ce)(ce)(ce)元件在高低溫(wen)(wen)(wen)(wen)(wen)(wen)室(shi)(shi)(shi)間的移動(dong)(dong)。移動(dong)(dong)過(guo)程中高低溫(wen)(wen)(wen)(wen)(wen)(wen)室(shi)(shi)(shi)相(xiang)通，被測(ce)(ce)(ce)元件也由高溫(wen)(wen)(wen)(wen)(wen)(wen)或低溫(wen)(wen)(wen)(wen)(wen)(wen)狀態進入(ru)另(ling)一(yi)溫(wen)(wen)(wen)(wen)(wen)(wen)室(shi)(shi)(shi)，所以會有大量冷熱(re)負荷帶入(ru)，機(ji)(ji)組要通過(guo)制(zhi)冷系統或加(jia)(jia)熱(re)系統迅(xun)速恢復到(dao)各溫(wen)(wen)(wen)(wen)(wen)(wen)室(shi)(shi)(shi)預(yu)(yu)定(ding)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)。當被測(ce)(ce)(ce)元件所在溫(wen)(wen)(wen)(wen)(wen)(wen)室(shi)(shi)(shi)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)長(chang)時間保(bao)持穩(wen)定(ding)后(hou)，再(zai)經過(guo)傳動(dong)(dong)機(ji)(ji)構將(jiang)載(zai)物籃(lan)反向(xiang)牽動(dong)(dong)，把被測(ce)(ce)(ce)元件帶回原溫(wen)(wen)(wen)(wen)(wen)(wen)室(shi)(shi)(shi)，同樣(yang)須迅(xun)速恢復到(dao)預(yu)(yu)定(ding)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)，當溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)再(zai)次長(chang)時間穩(wen)定(ding)后(hou)，再(zai)重復上述操作，完成(cheng)多次溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)循(xun)環(huan)沖擊(ji)(ji)試(shi)驗。

「鹽(yan)霧(wu)實驗機」常見的故障(zhang)及解決(jue)方法介(jie)紹

無法加熱

鹽(yan)霧測試(shi)機加(jia)熱(re)系(xi)統(tong)(tong)(tong)為(wei)(wei)：電(dian)源---開關---加(jia)熱(re)管(guan)----溫(wen)(wen)控，這(zhe)里(li)面(mian)又分(fen)為(wei)(wei)兩個加(jia)熱(re)系(xi)統(tong)(tong)(tong)，一(yi)為(wei)(wei)壓(ya)力桶(tong)加(jia)熱(re)系(xi)統(tong)(tong)(tong)，二為(wei)(wei)試(shi)驗室加(jia)熱(re)系(xi)統(tong)(tong)(tong)。據(ju)國(guo)內(nei)標(biao)準(zhun)，集(ji)成電(dian)路三溫(wen)(wen)測試(shi)設(she)備供應(ying)商，壓(ya)力桶(tong)溫(wen)(wen)度設(she)定為(wei)(wei)47°，試(shi)驗室溫(wen)(wen)度設(she)定為(wei)(wei)35°，以下做區分(fen)詳述；　　1、壓(ya)力桶(tong)無(wu)法加(jia)熱(re)；　　壓(ya)力桶(tong)無(wu)法加(jia)熱(re)，一(yi)般(ban)先排(pai)除繼電(dian)器有無(wu)壞(huai)（繼電(dian)器上面(mian)有個綠(lv)色小燈，若在(zai)加(jia)熱(re)狀(zhuang)態會常亮），若沒問(wen)題，則(ze)測量壓(ya)力桶(tong)加(jia)熱(re)管(guan)兩端是否(fou)有電(dian)壓(ya)（220V），排(pai)除這(zhe)兩個問(wen)題后(hou)，定做集(ji)成電(dian)路三溫(wen)(wen)測試(shi)設(she)備，就只剩(sheng)下兩個原(yuan)因，一(yi)為(wei)(wei)壓(ya)力桶(tong)溫(wen)(wen)感絲燒(shao)壞(huai)，二為(wei)(wei)溫(wen)(wen)控表壞(huai)，一(yi)般(ban)先更換溫(wen)(wen)感絲（較便宜），蕞后(hou)再更換溫(wen)(wen)控表。　　注：發(fa)熱(re)管(guan)一(yi)般(ban)使用幾年(nian)都不(bu)會燒(shao)壞(huai)，若更換溫(wen)(wen)控表后(hou)仍無(wu)改(gai)善(shan)，蕞后(hou)更換發(fa)熱(re)管(guan)。