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（東莞市科文試驗設(she)備有限公司）帶您(nin)更深(shen)入的認識下該設(she)備：

1.什(shen)么是冷熱沖擊(ji)試驗箱？

    冷熱沖擊試驗箱也稱高低溫沖擊試驗箱，是一款(kuan)用于(yu)檢測(ce)溫度沖(chong)(chong)擊的(de)設(she)備，通(tong)過高溫低溫循環(huan)沖(chong)(chong)擊進行試驗。冷熱(re)沖(chong)(chong)擊箱采用蓄(xu)溫方式，為(wei)待測(ce)產(chan)品(pin)靜置(zhi)冷、熱(re)交(jiao)替沖(chong)(chong)擊方式，測(ce)試產(chan)品(pin)在溫度急(ji)劇變(bian)(bian)化(hua)后(hou)(hou)的(de)性(xing)能與(yu)參數。檢測(ce)產(chan)品(pin)抗拒熱(re)脹冷縮的(de)能力，及(ji)產(chan)品(pin)經過冷熱(re)沖(chong)(chong)擊，高低溫沖(chong)(chong)擊，溫度沖(chong)(chong)擊后(hou)(hou)發生的(de)物(wu)理能力變(bian)(bian)化(hua)，以(yi)篩選(xuan)材(cai)料及(ji)成(cheng)品(pin)的(de)質量。

2.冷熱(re)沖擊試(shi)驗(yan)箱的用途(tu)有(you)哪些？

    冷熱沖擊測試箱用于電(dian)子(zi)電(dian)器(qi)零組(zu)件(jian)(jian)、自動化(hua)零部件(jian)(jian)、通訊組(zu)件(jian)(jian)、汽車(che)配件(jian)(jian)、金屬、化(hua)學材(cai)料(liao)(liao)、塑膠等(deng)行(xing)業(ye)，LED照明，LED光電(dian)，液晶屏顯示器(qi)，國防工業(ye)、航(hang)天(tian)、兵(bing)工業(ye)、BGA、PCB基(ji)扳、電(dian)子(zi)芯片(pian)IC、半導(dao)體陶磁及(ji)高(gao)分子(zi)材(cai)料(liao)(liao)之物理(li)牲變化(hua),測試其材(cai)料(liao)(liao)對(dui)高(gao)、低溫的(de)反復抵拉力及(ji)產(chan)品(pin)于熱脹冷縮產(chan)出的(de)化(hua)學變化(hua)或物理(li)傷(shang)害(hai)，可確認(ren)產(chan)品(pin)的(de)品(pin)質,從精密的(de)IC到重機(ji)械的(de)組(zu)件(jian)(jian)，無一不需要它的(de)理(li)想測試工具.

用戶如(ru)何(he)選購適合的冷熱(re)沖(chong)擊試(shi)驗箱？

    1.沖擊溫度(du)。沖擊溫度(du)是指測試(shi)區實際能夠跑到的(de)溫度(du)zui大范圍。注意(yi)不是預熱和預冷(leng)室的(de)極限溫度(du)。

    2.試驗負載。這個參數直(zhi)接影響能夠放置多(duo)少測試品。一般說來，這個重(zhong)量(liang)越大(da)越好(hao)。

    3.復歸時(shi)(shi)間。它是(shi)指測試品全(quan)部從一個(ge)溫度點切(qie)換(huan)到另外一個(ge)溫度點所耗費的時(shi)(shi)間。我們常見的規范約定≤5min。這(zhe)個(ge)時(shi)(shi)間越小越好。

    4.除(chu)(chu)霜(shuang)時間。除(chu)(chu)霜(shuang)間隔時間越長越好。現在有寫廠家(jia)能夠做到1000cycles除(chu)(chu)霜(shuang)一次(ci)，是非常(chang)理想的(de)(de)。除(chu)(chu)霜(shuang)間隔越短說明該設備的(de)(de)氣(qi)密(mi)性越差！

    5.sensor放置(zhi)位置(zhi)。規范要求，sensor必須放置(zhi)在測試(shi)區內部(bu)。有些廠家將sensor放置(zhi)在風道(dao)內部(bu)，雖然與(yu)測試(shi)區只有10cm的(de)(de)距離，但是(shi)這(zhe)個能量(liang)差(cha)異是(shi)相當大(da)的(de)(de)。且不能夠真實反映測試(shi)品(pin)表面的(de)(de)溫度變(bian)化。

東莞科(ke)文*：冷熱(re)沖擊試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),材料老(lao)(lao)化(hua)(hua)(hua)測(ce)試(shi)(shi)(shi)(shi)(shi)(shi)設備(bei),紫(zi)(zi)(zi)外光耐(nai)氣候試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),紫(zi)(zi)(zi)外線(xian)加速耐(nai)候試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)機(ji),紫(zi)(zi)(zi)外光老(lao)(lao)化(hua)(hua)(hua)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),紫(zi)(zi)(zi)外線(xian)老(lao)(lao)化(hua)(hua)(hua)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),高低(di)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)設備(bei),低(di)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),小型(xing)低(di)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),高低(di)溫(wen)(wen)(wen)老(lao)(lao)化(hua)(hua)(hua)箱(xiang)(xiang)(xiang),高低(di)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),高低(di)溫(wen)(wen)(wen)交(jiao)變試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),濕熱(re)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),交(jiao)變濕熱(re)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),溫(wen)(wen)(wen)濕度試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),恒(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)濕箱(xiang)(xiang)(xiang),恒(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)濕試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),恒(heng)(heng)溫(wen)(wen)(wen)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),調溫(wen)(wen)(wen)調濕箱(xiang)(xiang)(xiang),調溫(wen)(wen)(wen)調濕試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱(xiang)(xiang)(xiang),步入(ru)式(shi)恒(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)濕試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)室(shi)(shi),步入(ru)式(shi)恒(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)濕箱(xiang)(xiang)(xiang),高溫(wen)(wen)(wen)老(lao)(lao)化(hua)(hua)(hua)房,恒(heng)(heng)溫(wen)(wen)(wen)老(lao)(lao)化(hua)(hua)(hua)室(shi)(shi),電(dian)(dian)熱(re)鼓(gu)風干燥箱(xiang)(xiang)(xiang),數顯鼓(gu)風干燥箱(xiang)(xiang)(xiang),電(dian)(dian)磁振(zhen)動臺,拉力試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)機(ji),紙箱(xiang)(xiang)(xiang)抗壓(ya)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)機(ji)等(deng)