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密封测试仪的负压直接测试方法


2024-10-12


密封测试仪,也可以叫气密性检测设备或江南app登录 等,它是一种用于检测产品包装、容器、零部件等是否存在泄漏或密封不良问题的设备。近日,看到一些用户对于该设备的负压测试方法有些不太了解,本文将根据这个问题介绍有关于它的基础知识。

负压直接测试方法是一种密封性测试技术,它通过在被测件背面施加真空负压,观察表面是否泄漏来评估产品的防水性能。这种方法特别适用于管道、箱体等有内部/外部结构要求的产品。

进行负压直接测试时,以下是一些关键步骤:

密封测试仪

1.准备工作:确保测试设备,如负压测试机、真空泵、压差传感器等,已经准备就绪并校准到适当的精度。

2.样品放置:将待测试样品放置在测试密封测试仪中,确保样品的密封区域能够被负压所影响。

3.抽真空:启动真空泵,对样品内部或周围的空间进行抽真空,以产生一个负压环境。

4.观察泄漏:在负压条件下,观察样品是否有气体泄漏。泄漏可能表现为气泡从样品表面逸出,或者通过传感器检测到压力的变化。

5.记录数据:记录测试过程中的所有相关数据,包括负压水平、泄漏率等,以便于后续分析。

6.测试结束:一旦达到预定的测试时间或检测到泄漏,停止真空泵,释放负压,并取出样品。

7.评估结果:根据测试结果评估样品的密封性能是否符合设计要求或相关标准。

综上所述,关于密封测试仪的负压直接测试方法的介绍,先到这里。

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