相信在可靠性實驗室工作的朋友們大部份都有接觸過冷熱沖擊試驗箱，這是一款高性能的環境試驗箱，下面冷熱沖擊試驗箱廠家（東莞(guan)市科文試驗設(she)備有限公司）帶您更深入的認識下該設(she)備：

1.什么(me)是冷(leng)熱(re)沖擊試(shi)驗箱？

    冷熱沖擊試驗箱也稱高低溫沖擊試驗箱，是一款(kuan)用于檢(jian)測溫(wen)度(du)沖(chong)(chong)擊(ji)(ji)(ji)的設(she)備，通過高(gao)溫(wen)低溫(wen)循環沖(chong)(chong)擊(ji)(ji)(ji)進行(xing)試驗。冷熱沖(chong)(chong)擊(ji)(ji)(ji)箱采用蓄(xu)溫(wen)方(fang)式(shi)，為待測產品(pin)(pin)(pin)靜置冷、熱交(jiao)替沖(chong)(chong)擊(ji)(ji)(ji)方(fang)式(shi)，測試產品(pin)(pin)(pin)在(zai)溫(wen)度(du)急(ji)劇變化(hua)后的性能(neng)與參數。檢(jian)測產品(pin)(pin)(pin)抗拒熱脹冷縮的能(neng)力，及產品(pin)(pin)(pin)經過冷熱沖(chong)(chong)擊(ji)(ji)(ji)，高(gao)低溫(wen)沖(chong)(chong)擊(ji)(ji)(ji)，溫(wen)度(du)沖(chong)(chong)擊(ji)(ji)(ji)后發生(sheng)的物理(li)能(neng)力變化(hua)，以篩(shai)選材料(liao)及成品(pin)(pin)(pin)的質(zhi)量。

2.冷(leng)熱沖擊(ji)試驗箱的用途有(you)哪些？

    冷熱沖擊測試箱用于電子(zi)(zi)電器零(ling)組(zu)件(jian)、自動化(hua)(hua)零(ling)部件(jian)、通訊組(zu)件(jian)、汽車配(pei)件(jian)、金屬(shu)、化(hua)(hua)學(xue)材料(liao)、塑膠等行(xing)業(ye)(ye)，LED照(zhao)明，LED光(guang)電，液晶(jing)屏顯(xian)示器，國防工(gong)業(ye)(ye)、航(hang)天、兵(bing)工(gong)業(ye)(ye)、BGA、PCB基扳、電子(zi)(zi)芯片IC、半導體陶(tao)磁及高分子(zi)(zi)材料(liao)之物理牲變化(hua)(hua),測(ce)試(shi)其材料(liao)對高、低溫的(de)反復(fu)抵拉力及產(chan)(chan)品于熱脹冷縮產(chan)(chan)出的(de)化(hua)(hua)學(xue)變化(hua)(hua)或物理傷害，可確認產(chan)(chan)品的(de)品質,從(cong)精(jing)密的(de)IC到重機(ji)械的(de)組(zu)件(jian)，無一不需要它(ta)的(de)理想測(ce)試(shi)工(gong)具.

用戶如何(he)選購(gou)適合的冷熱沖擊試驗(yan)箱？

    1.沖(chong)擊溫度。沖(chong)擊溫度是(shi)指測試區實(shi)際能夠跑到的溫度zui大范圍。注(zhu)意不是(shi)預(yu)熱和預(yu)冷室的極限溫度。

    2.試驗負載。這(zhe)個參數直接影響能夠放置多少測(ce)試品。一(yi)般說來，這(zhe)個重量越(yue)大越(yue)好(hao)。

    3.復歸時間。它(ta)是指測試品全部從一(yi)個溫(wen)(wen)度點切換(huan)到另外一(yi)個溫(wen)(wen)度點所耗(hao)費的時間。我們常見(jian)的規(gui)范(fan)約(yue)定≤5min。這個時間越小越好。

    4.除霜時(shi)間(jian)(jian)。除霜間(jian)(jian)隔(ge)時(shi)間(jian)(jian)越長越好。現在有寫廠家能(neng)夠(gou)做到1000cycles除霜一次，是非常理想的(de)。除霜間(jian)(jian)隔(ge)越短(duan)說明(ming)該(gai)設備的(de)氣密性(xing)越差！

    5.sensor放置位置。規范要求(qiu)，sensor必須放置在(zai)測試(shi)區內部(bu)。有(you)些廠(chang)家將sensor放置在(zai)風道內部(bu)，雖然與測試(shi)區只有(you)10cm的(de)距離，但是(shi)這(zhe)個(ge)能(neng)量差(cha)異是(shi)相當(dang)大(da)的(de)。且不能(neng)夠真實反(fan)映測試(shi)品表面的(de)溫度變(bian)化。

東莞科文*：冷熱沖(chong)擊試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),材料老化測(ce)試(shi)(shi)(shi)(shi)設(she)備(bei),紫外光耐(nai)氣(qi)候試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),紫外線加速耐(nai)候試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)機,紫外光老化試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),紫外線老化試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),高(gao)低(di)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)設(she)備(bei),低(di)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),小型低(di)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),高(gao)低(di)溫(wen)(wen)(wen)老化箱(xiang)(xiang)(xiang),高(gao)低(di)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),高(gao)低(di)溫(wen)(wen)(wen)交變試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),濕熱試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),交變濕熱試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),溫(wen)(wen)(wen)濕度試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),恒(heng)(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)(heng)濕箱(xiang)(xiang)(xiang),恒(heng)(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)(heng)濕試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),恒(heng)(heng)(heng)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),調(diao)溫(wen)(wen)(wen)調(diao)濕箱(xiang)(xiang)(xiang),調(diao)溫(wen)(wen)(wen)調(diao)濕試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),步入式恒(heng)(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)(heng)濕試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)室,步入式恒(heng)(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)(heng)濕箱(xiang)(xiang)(xiang),高(gao)溫(wen)(wen)(wen)老化房,恒(heng)(heng)(heng)溫(wen)(wen)(wen)老化室,電(dian)熱鼓風干燥(zao)箱(xiang)(xiang)(xiang),數顯(xian)鼓風干燥(zao)箱(xiang)(xiang)(xiang),電(dian)磁振動臺,拉力試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)機,紙箱(xiang)(xiang)(xiang)抗(kang)壓試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)機等(deng)