高低(di)溫(wen)沖(chong)擊試驗箱(xiang)(xiang)保(bao)溫(wen)材料采用(yong)超細(xi)玻璃纖(xian)維,低(di)溫(wen)箱(xiang)(xiang)保(bao)溫(wen)材料采用(yong)聚氨酯發泡、石(shi)棉(mian)板及超細(xi)玻璃纖(xian)維,保(bao)溫(wen)效果良好,試驗箱(xiang)(xiang)外(wai)表面不(bu)結霜,不(bu)凝(ning)露,低(di)溫(wen)箱(xiang)(xiang)底部有冷凝(ning)水排水口,冷熱(re)沖(chong)擊箱(xiang)(xiang)箱(xiang)(xiang)體上有1個φ25測試孔。