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冷热冲击试验的试验目的和条件及对试验箱的要求

日期:2024-01-19 03:14
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摘要:&nbsp;<span style="font-family: 宋体-PUA; font-size: 12pt;">冷热冲击试验的试验目的和条件及对试验箱的要求</span> <p class="p0" style="margin-bottom: 0pt; margin-top: 0pt;"><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">&nbsp;冷热冲击试验</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">箱</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">用于电子电器零组件、自动化零部件、通讯组件、汽车配件、金属、化学材料、塑胶等行业,测试其材料对高、低温的反复抵拉力及产品于热胀冷缩产出的化学变化或物理伤害,可确认产品的品质,从精密的IC到重机械的组件,无一不需要它的认同。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">&nbsp;</span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">一、试验目的</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;确定设备(产品)在周围大气温度急剧变化时的适应性。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">二、试验条件</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">2.1&nbsp;&nbsp;试验温度:高温为70℃;低温为-55℃。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">2.2&nbsp;&nbsp;试验温度保持时间:1h或者直至试验样品达到温度稳定,以时间长者为准。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">2.3&nbsp;&nbsp;转换时间:不大于5min。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">2.4&nbsp;&nbsp;循环次数:3次。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">三、对试验箱(室)的要求</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">&nbsp;&nbsp;&nbsp;&nbsp;本标准应用冷热冲击试验箱(室)或采用高温试验箱(室)和低温试验箱(室)进行冷热冲击试验,以提供试验样品经受周围空气温度急剧发生变化的环境温度。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">3.1&nbsp;&nbsp;高温试验箱(室)的要求,应符合GJB150.3-86《**设备环境试验方法&nbsp;&nbsp;&nbsp;&nbsp;高温试验》的第3章各条所规定的要求。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">3.2&nbsp;&nbsp;低温试验箱(室)的要求,应符合GJB150.4-86《**设备环境试验方法&nbsp;&nbsp;&nbsp;&nbsp;低温试验》的第3章各条所规定的要求。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">3.3&nbsp;&nbsp;&nbsp;冷热冲击试验箱(室)提供高温试验部分和低温试验部分,应分别符合GJB150.3-86和GJB150.4-86的第3章各条所规定的要求。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">3.4&nbsp;&nbsp;&nbsp;试验箱(室)的容积应保证在试验样品放入候补超过试验温度保持时间的10%就能使试验箱(室)温度达到GJB150.1-89中3.2条规定的试验条件容差范围之内。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">四、恢复</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;试验样品从试验箱(室)内取出后,应在正常的试验大气条件下进行恢复,直至试验样品达到温度稳定。</span><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; "><o:p></o:p></span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:12.0000pt; font-family:'宋体-PUA'; ">&nbsp;</span></p> <p class="p0" style="margin-bottom:0pt; margin-top:0pt; "><a href="http://www.weihuang18.net"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">伟煌科技</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">(wewon)研发,生产,销售,维修:</span><a href="http://www.weihuang18.net/goodsid/goodsview/10083896.html"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">恒温恒湿试验箱</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">,</span><a href="http://www.weihuang18.net/goodsid/goodsview/7290100.html"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">冷热冲击试验机</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">,</span><a href="http://www.weihuang18.net/goodsid/goodsview/7200961.htm"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">可程序恒温恒湿试验机</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">,</span><a href="http://www.weihuang18.net/goodsid/goodsview/7200958.html"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">高低温箱</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">,</span><a href="http://www.weihuang18.net/goodsid/fenleier/2642231/1.html"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">三箱</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">(</span><a href="http://www.weihuang18.net/goodsid/fenleier/2637099/1.html"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">两箱)式冷热冲击试验机</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">,</span><a href="http://www.weihuang18.net/goodsid/fenleier/2535914/1.html"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">温湿度快速温变箱</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">,</span><a href="http://www.weihuang18.net/goodsid/fenleier/2737394/1.html"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">高温试验箱</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">,</span><a href="http://www.weihuang18.net/goodsid/fenleier/2535797/1.html"><span style="color: rgb(0, 0, 255); font-size: 12pt; font-family: 宋体-PUA;">盐雾腐蚀箱</span></a><span style="mso-spacerun:'yes'; color:rgb(0,0,255); font-size:12.0000pt; font-family:'宋体-PUA'; ">,</span><a href="http://www.weihuang18.net/goodsid/fenleier/2535795/1.html"><span style="color: rgb(0, 0, 255); 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 冷热冲击试验的试验目的和条件及对试验箱的要求

 冷热冲击试验用于电子电器零组件、自动化零部件、通讯组件、汽车配件、金属、化学材料、塑胶等行业,测试其材料对高、低温的反复抵拉力及产品于热胀冷缩产出的化学变化或物理伤害,可确认产品的品质,从精密的IC到重机械的组件,无一不需要它的认同。

 

一、试验目的

        确定设备(产品)在周围大气温度急剧变化时的适应性。

二、试验条件

2.1  试验温度:高温为70℃;低温为-55℃。

2.2  试验温度保持时间:1h或者直至试验样品达到温度稳定,以时间长者为准。

2.3  转换时间:不大于5min。

2.4  循环次数:3次。

三、对试验箱(室)的要求

    本标准应用冷热冲击试验箱(室)或采用高温试验箱(室)和低温试验箱(室)进行冷热冲击试验,以提供试验样品经受周围空气温度急剧发生变化的环境温度。

3.1  高温试验箱(室)的要求,应符合GJB150.3-86《**设备环境试验方法    高温试验》的第3章各条所规定的要求。

3.2  低温试验箱(室)的要求,应符合GJB150.4-86《**设备环境试验方法    低温试验》的第3章各条所规定的要求。

3.3   冷热冲击试验箱(室)提供高温试验部分和低温试验部分,应分别符合GJB150.3-86和GJB150.4-86的第3章各条所规定的要求。

3.4   试验箱(室)的容积应保证在试验样品放入候补超过试验温度保持时间的10%就能使试验箱(室)温度达到GJB150.1-89中3.2条规定的试验条件容差范围之内。

四、恢复

        试验样品从试验箱(室)内取出后,应在正常的试验大气条件下进行恢复,直至试验样品达到温度稳定。

 

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