服務熱線:
溫度循環試驗箱概述:
因(yin)為(wei)溫濕度振(zhen)(zhen)動試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱能(neng)(neng)夠同(tong)時模擬(ni)高溫、低溫、高濕、低濕、振(zhen)(zhen)動環境的(de)(de)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)設(she)(she)備,雖然功能(neng)(neng)是(shi)(shi)非常全面的(de)(de),但是(shi)(shi)因(yin)為(wei)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)原理(li)(li)太復(fu)雜,讓很多(duo)操作人員不是(shi)(shi)特別了解(jie)溫濕度振(zhen)(zhen)動試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱的(de)(de)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)原理(li)(li),但是(shi)(shi)也(ye)有些用戶(hu)覺得就(jiu)算(suan)不了解(jie)這款試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)設(she)(she)備,但是(shi)(shi)我也(ye)能(neng)(neng)夠順利(li)的(de)(de)使用這款設(she)(she)備進行試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)。但其實在了解(jie)了溫濕度振(zhen)(zhen)動試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)箱的(de)(de)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)原理(li)(li)之后,就(jiu)能(neng)(neng)夠更(geng)加了解(jie)、更(geng)方便(bian)的(de)(de)使用這款設(she)(she)備進行試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)。
特點:
1、升溫(wen)、降(jiang)溫(wen)應該(gai)是(shi)(shi)溫(wen)濕(shi)度振動試驗箱(xiang)中非常常見的(de)(de),但是(shi)(shi)很(hen)多用戶(hu)不知道試驗箱(xiang)到底是(shi)(shi)如(ru)(ru)何完成升降(jiang)溫(wen)的(de)(de)。其實(shi)設備的(de)(de)升溫(wen)主要是(shi)(shi)通過功率大的(de)(de)電(dian)阻絲來加熱工作室(shi)內(nei)的(de)(de)空氣完成的(de)(de)。降(jiang)溫(wen)主要是(shi)(shi)依靠(kao)制(zhi)(zhi)冷(leng),不過制(zhi)(zhi)冷(leng)分成了機械制(zhi)(zhi)冷(leng)和液(ye)氮輔助制(zhi)(zhi)冷(leng)兩種,兩種能夠實(shi)現的(de)(de)低溫(wen)是(shi)(shi)不同的(de)(de),就比(bi)如(ru)(ru)說
種能夠實現-70℃左右的低溫,而液氮(dan)制冷就能夠為用戶提供更低的溫度。不過第二種降溫方式的價格也比較(jiao)貴(gui),還(huan)是要大家慎重選擇。
2、試驗箱的(de)(de)(de)(de)加(jia)(jia)(jia)濕(shi)(shi)(shi)(shi)(shi)、除濕(shi)(shi)(shi)(shi)(shi),加(jia)(jia)(jia)濕(shi)(shi)(shi)(shi)(shi)通(tong)常(chang)使用(yong)的(de)(de)(de)(de)蒸汽加(jia)(jia)(jia)濕(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)方法(fa),因為這種(zhong)加(jia)(jia)(jia)濕(shi)(shi)(shi)(shi)(shi)方法(fa)速度(du)(du)(du)比(bi)較(jiao)快,而(er)且(qie)(qie)也(ye)比(bi)較(jiao)方面控制。除濕(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)方法(fa)主(zhu)要(yao)也(ye)有兩種(zhong),一種(zhong)是機械制冷除濕(shi)(shi)(shi)(shi)(shi)和(he)干燥(zao)除濕(shi)(shi)(shi)(shi)(shi),是將(jiang)工(gong)作(zuo)(zuo)室(shi)內(nei)地溫度(du)(du)(du)降低露點溫度(du)(du)(du)下,這樣大量(liang)的(de)(de)(de)(de)水(shui)蒸氣(qi)就會凝結,然后順著工(gong)作(zuo)(zuo)室(shi)內(nei)的(de)(de)(de)(de)排水(shui)孔排出(chu),從而(er)降低工(gong)作(zuo)(zuo)室(shi)內(nei)的(de)(de)(de)(de)濕(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)。第二種(zhong)比(bi)較(jiao)麻煩,要(yao)通(tong)過干燥(zao)器將(jiang)工(gong)作(zuo)(zuo)室(shi)內(nei)搭的(de)(de)(de)(de)空氣(qi)抽(chou)出(chu),然后再將(jiang)干燥(zao)的(de)(de)(de)(de)空氣(qi)注(zhu)入其(qi)中,并且(qie)(qie)不斷反(fan)復(fu)后保證試驗你想內(nei)濕(shi)(shi)(shi)(shi)(shi)度(du)(du)(du)達到設定要(yao)求。
溫度循環試驗箱用于考察(cha)產(chan)(chan)(chan)品熱機械(xie)性能引起的失效(xiao),溫(wen)度(du)變(bian)化率一般小(xiao)于20℃/分;當構成(cheng)產(chan)(chan)(chan)品各部(bu)件的材料熱匹配較差,或部(bu)件內應力較大(da)時(shi)(shi),溫(wen)度(du)循(xun)環(huan)(huan)試驗(yan)可引發產(chan)(chan)(chan)品由(you)機械(xie)結構缺陷(xian)劣化產(chan)(chan)(chan)生的失效(xiao)。溫(wen)度(du)循(xun)環(huan)(huan)試驗(yan)可模擬工作時(shi)(shi)氣候條件變(bian)化對(dui)產(chan)(chan)(chan)品的影(ying)響,評價產(chan)(chan)(chan)品的可靠性和(he)耐久性。溫(wen)度(du)循(xun)環(huan)(huan)試驗(yan)是環(huan)(huan)境應力篩選的有力手段,可有效(xiao)剔除產(chan)(chan)(chan)品的早(zao)期失效(xiao)。