華中辦事處:
地址:湖南省長沙市開元中路88號星隆國際廣場2501
聯系人:黃經理
電話:
香港聯絡處:
聯系人:林先生
電話:
一、快速溫變濕熱試驗箱用途:
快速(su)溫變(bian)(bian)濕熱試(shi)(shi)驗箱:該(gai)儀器適用(yong)于工業產(chan)品高(gao)、低溫的(de)可靠性試(shi)(shi)驗。對電(dian)子電(dian)工、汽車摩托(tuo)、軍工、電(dian)子、通訊、光電(dian)、建材、機械(xie)、石(shi)油、生(sheng)物工程、航(hang)空航(hang)天、船舶兵(bing)器、高(gao)等院校(xiao)、科研單位等相關產(chan)品的(de)零(ling)部件及材料(liao)在高(gao)、低溫(交變(bian)(bian))循環變(bian)(bian)化(hua)的(de)情況下,檢(jian)驗其各項(xiang)性能指(zhi)標。
快速溫變濕熱(re)試驗(yan)(yan)箱(xiang)產(chan)品(pin)具有較寬的溫度控制范圍,其性能指標(biao)均達到國家標(biao)準GB10592-89高低(di)溫試驗(yan)(yan)箱(xiang)技術條件(jian),適用于(yu)按GB2423.1、GB2423.2《電工電子(zi)產(chan)品(pin)環(huan)境試驗(yan)(yan)試驗(yan)(yan)A:低(di)溫試驗(yan)(yan)方(fang)法,試驗(yan)(yan)B:高溫試驗(yan)(yan)方(fang)法》對(dui)產(chan)品(pin)進行低(di)溫、高溫試驗(yan)(yan)及恒定溫熱(re)試驗(yan)(yan)。產(chan)品(pin)符合(he)GB2423.1、GB2423.2、GJB150.3、GJB150.4、IEC、MIL標(biao)準。
二、快速溫變(bian)濕熱試驗箱(xiang)工作原理:
制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)工(gong)(gong)作原理(li):制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)循(xun)環(huan)(huan)采用(yong)逆卡若循(xun)環(huan)(huan),該循(xun)環(huan)(huan)出兩個等(deng)溫過(guo)(guo)程(cheng)和兩個絕(jue)熱(re)(re)過(guo)(guo)程(cheng)組成(cheng),其過(guo)(guo)程(cheng)如下:制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)劑經(jing)壓(ya)縮機絕(jue)熱(re)(re)壓(ya)縮到較高的(de)(de)壓(ya)力(li),消耗(hao)了的(de)(de)功(gong)使排氣溫度(du)升高,之(zhi)后制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)劑經(jing)冷(leng)(leng)凝器等(deng)溫地和四周(zhou)介(jie)質(zhi)進行(xing)熱(re)(re)交換將熱(re)(re)量傳給四周(zhou)介(jie)質(zhi)。后制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)劑經(jing)截流(liu)閥絕(jue)熱(re)(re)膨脹做功(gong),這時(shi)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)劑溫度(du)降(jiang)低。最后制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)劑通過(guo)(guo)蒸發(fa)器等(deng)溫地從溫度(du)較高的(de)(de)物體(ti)吸熱(re)(re),使被冷(leng)(leng)卻(que)物體(ti)溫度(du)降(jiang)低。此循(xun)環(huan)(huan)周(zhou)而復始(shi)從而達到降(jiang)溫之(zhi)目(mu)的(de)(de)。本試驗箱之(zhi)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)系(xi)(xi)統(tong)(tong)(tong)采用(yong)一套法國產泰康全封閉壓(ya)縮機所(suo)組成(cheng)的(de)(de)單元氟利昂制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)系(xi)(xi)統(tong)(tong)(tong)。制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)系(xi)(xi)統(tong)(tong)(tong)的(de)(de)設計應用(yong)能(neng)(neng)量調(diao)(diao)節技術(shu),既(ji)能(neng)(neng)保(bao)證制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)機組正常運(yun)行(xing),又能(neng)(neng)對制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)系(xi)(xi)統(tong)(tong)(tong)的(de)(de)能(neng)(neng)耗(hao)及制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)量進行(xing)有效的(de)(de)調(diao)(diao)節,使制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)系(xi)(xi)統(tong)(tong)(tong)保(bao)持在(zai)最佳(jia)的(de)(de)運(yun)行(xing)狀態。采用(yong)平衡調(diao)(diao)溫(BTC),既(ji)在(zai)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)系(xi)(xi)統(tong)(tong)(tong)在(zai)連續工(gong)(gong)作的(de)(de)情況下,控制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)系(xi)(xi)統(tong)(tong)(tong)根據設定(ding)之(zhi)溫度(du)點(dian)通過(guo)(guo)PID自動運(yun)算輸出的(de)(de)結果(guo)去控制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)加熱(re)(re)器的(de)(de)輸出量,最終達到一種動態平衡。
恒(heng)溫恒(heng)濕試驗箱漏水濕度(du)不(bu)穩定
恒(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)濕(shi)試驗(yan)箱(xiang)的溫(wen)(wen)(wen)濕(shi)度均勻性按照國家標準應該為±2℃/±3%R·H,但很多(duo)客(ke)戶說他們買回的恒(heng)(heng)溫(wen)(wen)(wen)恒(heng)(heng)濕(shi)試驗(yan)箱(xiang)達不到這個要(yao)求,這個怎么回事呢?恒(heng)(heng)工科(ke)技(ji)為您(nin)解答:
首先,國(guo)家(jia)標準(zhun)應該為±2℃/±3%R·H,這(zhe)個要求(qiu)為空載時的(de)要求(qiu),而不是滿載時的(de)要求(qiu),如果需(xu)要達到(dao)滿載時的(de)要求(qiu),您購機時需(xu)提(ti)前說明。
再者(zhe),客戶放(fang)置的(de)產品多少,一般情況下可以所占空(kong)間(jian)為所有(you)空(kong)間(jian)的(de)1/3,第一個測試樣品的(de)左右前(qian)后(hou),上下都需要預(yu)留一些空(kong)間(jian)出(chu)來。打個比(bi)方:每(mei)一個產品密(mi)密(mi)麻麻的(de)放(fang)著,那么(me)四周空(kong)氣會好些,中間(jian)沒有(you)空(kong)氣流通,那如何保證呢。
還有(you)(you),切(qie)記一定(ding)(ding)(ding)不(bu)(bu)要(yao)堵信(xin)出風(feng)(feng)口,可能有(you)(you)些客戶不(bu)(bu)知道出風(feng)(feng)口在哪里,出風(feng)(feng)口就是(shi)恒(heng)溫恒(heng)濕(shi)試驗箱(xiang)內部有(you)(you)一個(ge)類(lei)似(si)百頁窗(chuang)的口子,那是(shi)出風(feng)(feng)口,測試樣品(pin)盡量不(bu)(bu)要(yao)堆(dui)在那里,預留一定(ding)(ding)(ding)的空間,如果測試樣品(pin)很(hen)高,直接堵住了,里面根本無法運風(feng)(feng),更談不(bu)(bu)上(shang)均(jun)勻度的事情;另外,恒(heng)溫恒(heng)濕(shi)試驗箱(xiang)的鈑金結構,鈑金一定(ding)(ding)(ding)要(yao)做好,放上(shang)去的部件才不(bu)(bu)會(hui)(hui)斜或倒,風(feng)(feng)輪放置不(bu)(bu)平(ping)衡,出風(feng)(feng)也會(hui)(hui)不(bu)(bu)均(jun)勻,這個(ge)很(hen)重要(yao),很(hen)容易忽視的。
最后,檢查(cha)一下恒(heng)溫恒(heng)濕試驗箱的門(men),是不是密閉(bi)得很好,千萬不能漏氣的哦。
東莞恒工設備(bei)是從事恒溫(wen)恒濕試(shi)驗(yan)(yan)箱,步(bu)入式(shi)環境試(shi)驗(yan)(yan)室(shi),快速溫(wen)變試(shi)驗(yan)(yan)箱,冷熱沖擊試(shi)驗(yan)(yan)箱,高(gao)低溫(wen)低氣(qi)壓(ya)試(shi)驗(yan)(yan)箱等,業務聯系:潘先生