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冷熱沖擊試驗箱溫度沖擊時間
冷熱沖擊試驗箱的溫度沖擊時間通常指從試驗的zui高溫到zui低溫或zui低溫到zui高溫溫度瞬間轉換的時間。以三箱式冷熱沖擊試驗機-40℃到100℃為例，-40℃到100℃溫度轉換時間在5分鐘以內，如果沖擊時間超過5分鐘就達不到國家的一些相關試驗標準要求了，所以一臺質量好的設備沖擊時間非常重要。
冷熱沖擊試驗箱溫度穩定性
溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)穩定性分(fen)為(wei)(wei)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)在穩定一段時(shi)間(jian)后(hou)的(de)(de)波(bo)動度(du)(du)(du)和(he)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)沖(chong)(chong)(chong)擊(ji)過(guo)(guo)(guo)沖(chong)(chong)(chong)。（溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)波(bo)動度(du)(du)(du)在前幾篇高低(di)溫(wen)(wen)(wen)(wen)(wen)(wen)試(shi)(shi)驗(yan)機的(de)(de)文章有講(jiang)過(guo)(guo)(guo)這里就(jiu)(jiu)不詳談）溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)過(guo)(guo)(guo)沖(chong)(chong)(chong)主要是溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)在沖(chong)(chong)(chong)擊(ji)過(guo)(guo)(guo)程中的(de)(de)降溫(wen)(wen)(wen)(wen)(wen)(wen)或(huo)升溫(wen)(wen)(wen)(wen)(wen)(wen)超過(guo)(guo)(guo)設定值。同樣(yang)以(yi)三箱式上面的(de)(de)設備(bei)為(wei)(wei)例(li)，比如(ru)從-40℃到100℃進行溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)沖(chong)(chong)(chong)擊(ji)試(shi)(shi)驗(yan)，當所需設定溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)是100℃，設備(bei)在溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)沖(chong)(chong)(chong)擊(ji)時(shi)過(guo)(guo)(guo)沖(chong)(chong)(chong)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)在100℃到102℃之(zhi)間(jian)的(de)(de)過(guo)(guo)(guo)沖(chong)(chong)(chong)，偏(pian)差(cha)在2℃以(yi)內(nei)就(jiu)(jiu)視為(wei)(wei)合(he)格(ge)的(de)(de)試(shi)(shi)驗(yan)，如(ru)果大于(yu)(yu)這個偏(pian)差(cha)值就(jiu)(jiu)視為(wei)(wei)不合(he)格(ge)。主要原因(yin)在于(yu)(yu)當溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)過(guo)(guo)(guo)沖(chong)(chong)(chong)過(guo)(guo)(guo)大時(shi)對試(shi)(shi)驗(yan)產品(pin)可(ke)能會損壞。同樣(yang)溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)沖(chong)(chong)(chong)擊(ji)時(shi)間(jian)超過(guo)(guo)(guo)5分(fen)鐘(zhong)，溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)小于(yu)(yu)98度(du)(du)(du)也不合(he)格(ge)，因(yin)為(wei)(wei)超過(guo)(guo)(guo)沖(chong)(chong)(chong)擊(ji)時(shi)間(jian)了(le)。