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昨(zuo)天(tian)我們分析了有關于(yu)高低溫交變濕熱(re)試驗(yan)箱存在(zai)的(de)均(jun)勻(yun)度問題今(jin)天(tian)小編再來帶(dai)大家探(tan)討其他可能存在(zai)的(de)問題。

設(she)(she)備(bei)故障是存在(zai)(zai)的(de)問題之一(yi)，隨著產(chan)品(pin)的(de)環境與可靠性試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)的(de)驗(yan)(yan)(yan)(yan)證(zheng)需求越(yue)來(lai)越(yue)大，試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)設(she)(she)備(bei)在(zai)(zai)質量保證(zheng)體系中發揮的(de)作用越(yue)來(lai)越(yue)突出。試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)設(she)(she)備(bei)資源運行過(guo)程(cheng)中的(de)各類故障，一(yi)直以來(lai)都是制約試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)驗(yan)(yan)(yan)(yan)證(zheng)能力(li)滿(man)足需求的(de)瓶頸。設(she)(she)備(bei)發生故障，會對試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)造(zao)成(cheng)(cheng)較(jiao)(jiao)為嚴(yan)重的(de)影響。試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)條件超(chao)過(guo)允差的(de)設(she)(she)備(bei)故障，會使(shi)受試(shi)(shi)(shi)(shi)產(chan)品(pin)承受其設(she)(she)計極限溫(wen)度的(de)應(ying)力(li)，造(zao)成(cheng)(cheng)受試(shi)(shi)(shi)(shi)產(chan)品(pin)損壞或試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)結果不可信。對于周期較(jiao)(jiao)長的(de)環境試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)，如過(guo)程(cheng)中因設(she)(she)備(bei)發生中斷(duan)，需要進行中斷(duan)處(chu)理(li)，并依(yi)據試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)具(ju)體情況確定(ding)處(chu)理(li)措施，會造(zao)成(cheng)(cheng)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)周期的(de)延長。很多產(chan)品(pin)的(de)涂層耐溫(wen)變性能按主機廠或軍工標準如GJB 150.9A-2009《xx裝備(bei)實驗(yan)室(shi)環境試(shi)(shi)驗(yan)方法 第9部分：濕熱試(shi)(shi)驗(yan)》需(xu)(xu)開展10個(ge)循環的交(jiao)變濕熱試(shi)(shi)驗(yan)，如在第7個(ge)循環第20小時(shi)發生欠試(shi)(shi)驗(yan)中斷，則需(xu)(xu)要從(cong)第7循環的開始點重新開始試(shi)(shi)驗(yan)。受試(shi)(shi)產(chan)品額外經歷了近20 h的濕度應(ying)力，影響了驗(yan)證效果、試(shi)(shi)驗(yan)周(zhou)期和(he)試(shi)(shi)驗(yan)成本。 

那(nei)么(me)(me)設備故障的原因是什么(me)(me)呢？

高低溫濕熱(re)試驗設備(bei)主要制(zhi)冷系(xi)(xi)統(tong)(tong)、加(jia)熱(re)系(xi)(xi)統(tong)(tong)、控濕系(xi)(xi)統(tong)(tong)、控制(zhi)系(xi)(xi)統(tong)(tong)、保護系(xi)(xi)統(tong)(tong)和(he)箱(xiang)體結構(gou)等(deng)部分組成，常見故(gu)障(zhang)(zhang)(zhang)為(wei)控制(zhi)系(xi)(xi)統(tong)(tong)故(gu)障(zhang)(zhang)(zhang)、電(dian)路故(gu)障(zhang)(zhang)(zhang)、制(zhi)冷系(xi)(xi)統(tong)(tong)故(gu)障(zhang)(zhang)(zhang)、加(jia)熱(re)系(xi)(xi)統(tong)(tong)故(gu)障(zhang)(zhang)(zhang)等(deng)。故(gu)障(zhang)(zhang)(zhang)出(chu)現的(de)原因有(you)電(dian)氣故(gu)障(zhang)(zhang)(zhang)和(he)機械(xie)(xie)(xie)故(gu)障(zhang)(zhang)(zhang)兩大類，設備(bei)長(chang)時間使(shi)用造成電(dian)子器件(jian)老化等(deng)易出(chu)現電(dian)氣故(gu)障(zhang)(zhang)(zhang)，如設備(bei)的(de)控制(zhi)系(xi)(xi)統(tong)(tong)；機械(xie)(xie)(xie)結構(gou)的(de)頻繁動作易發生機械(xie)(xie)(xie)故(gu)障(zhang)(zhang)(zhang)，如電(dian)磁(ci)閥。

本文出自：南京(jing)環科試驗(yan)設備有限公司，轉載請注明出處，謝謝！