{"id":4098,"date":"2024-10-26T14:44:23","date_gmt":"2024-10-26T06:44:23","guid":{"rendered":"https:\/\/www.air-tester.com\/?p=4098"},"modified":"2025-08-01T15:48:09","modified_gmt":"2025-08-01T07:48:09","slug":"shuang-tong-dao-qi-mi-she-bei","status":"publish","type":"post","link":"https:\/\/www.air-tester.com\/en\/shuang-tong-dao-qi-mi-she-bei.html\/","title":{"rendered":"Dual-channel floor-standing airtightness testing equipment: from manual water inspection to automated testing quality innovation"},"content":{"rendered":"
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In precision manufacturing, gas tightness testing is an important step in ensuring product quality and safety.<\/p>\n<\/blockquote>\n\n\n\n

As a veteran engineer in the manufacturing industry for more than 20 years, I have witnessed three major innovations in product airtightness testing technology.\u4ece\u6700\u521d\u7684\u4eba\u5de5\u6c34\u68c0\uff0c\u5230\u5355\u5de5\u4f4dairtightness tester<\/a>\uff0c\u518d\u5230\u73b0\u5728\u7684\u591a\u901a\u9053\u667a\u80fd\u68c0\u6d4b\u7cfb\u7edf<\/strong>, with each advancement I am struck by how fast technology is evolving. Let's start by reviewing this technological evolution.<\/p>\n\n\n\n

I. Evolution of airtightness testing methods<\/h2>\n\n\n\n

I remember when I first joined the industry, the workshop was still clear of manual water inspection. Workers needed to put the products into the pool, and one by one, they would observe with their eyes whether there were bubbles coming out. To be honest, it was really hard and inaccurate at that time.<\/p>\n\n\n\n

\"\u53cc\u901a\u9053\u843d\u5730\u5f0f\u6c14\u5bc6\u6027\u68c0\u6d4b\u8bbe\u5907\uff1a\u4ece\u4eba\u5de5\u6c34\u68c0\u5230\u81ea\u52a8\u5316\u68c0\u6d4b\u7684\u8d28\u91cf\u9769\u65b0\u63d2\u56fe\"
Traditional manual soak test for airtightness<\/em><\/figcaption><\/figure>\n\n\n\n

To help you visualize the change, I've put together a comparison table:<\/p>\n\n\n\n

Comparison Program<\/strong><\/td>Artificial soaking airtightness test<\/strong><\/td>Automated Airtightness Testing<\/strong><\/td><\/tr><\/thead>
Detection efficiency<\/strong><\/td>Detection time per piece approx. 30-60 seconds<\/td>Detection time for a single piece approx. 10-15 seconds (2 pieces can be detected at the same time with dual channels)<\/td><\/tr>
Personnel requirements<\/strong><\/td>2-3 skilled workers required<\/td>1 operator is sufficient<\/td><\/tr>
Detection accuracy<\/strong><\/td>Dependent on human eye observation with limited accuracy<\/td>Detects small leaks (down to 0.1 Pa)<\/td><\/tr>
consistency<\/strong><\/td>Highly affected by the state of personnel<\/td>Stable and reliable with good consistency<\/td><\/tr>
Testing costs<\/strong><\/td>High water consumption and high labor costs<\/td>Low running costs due to compressed air only<\/td><\/tr>
environmental<\/strong><\/td>Wastewater treatment issues<\/td>Non-polluting, more environmentally friendly<\/td><\/tr>
Data traceability<\/strong><\/td>Difficult to record and trace<\/td>Automatic logging and support for MES system interfacing<\/td><\/tr>
Site requirements<\/strong><\/td>Requires a dedicated waterproof area<\/td>Ordinary workshops are sufficient<\/td><\/tr>
working environment<\/strong><\/td>Moist and prone to rust<\/td>Clean and dry<\/td><\/tr>
quality control<\/strong><\/td>Subjective judgment prevails<\/td>Objective data-based<\/td><\/tr>
investment cost<\/strong><\/td>Low upfront investment<\/td>Higher upfront investment<\/td><\/tr>
Long-term gains<\/strong><\/td>High operating costs<\/td>Low operating costs and fast payback<\/td><\/tr><\/tbody><\/table>
Comparison table of manual soak airtightness test vs automated airtightness test<\/em><\/figcaption><\/figure>\n\n\n\n

Seeing this table reminded me of a very interesting case the other day.<\/p>\n\n\n\n

\"\u53cc\u901a\u9053\u843d\u5730\u5f0f\u6c14\u5bc6\u6027\u68c0\u6d4b\u8bbe\u5907\uff1a\u4ece\u4eba\u5de5\u6c34\u68c0\u5230\u81ea\u52a8\u5316\u68c0\u6d4b\u7684\u8d28\u91cf\u9769\u65b0\u63d2\u56fe1\"
Car Camera Airtightness Test<\/em><\/figcaption><\/figure>\n\n\n\n

There's a customer who makes car cameras.\u539f\u6765\u7528\u4f20\u7edf\u6c34\u68c0\uff0c\u6bcf\u5929\u5149\u662f\u68c0\u6d4b\u5c31\u9700\u8981 6 \u4e2a\u4eba\uff0c\u800c\u4e14\u7ecf\u5e38\u6709\u6f0f\u68c0\u3002\u81ea\u4ece\u6362\u4e86\u6211\u4eec\u7684\u53cc\u901a\u9053\u6c14\u5bc6\u68c0\u6d4b\u8bbe\u5907<\/a>\uff0c\u73b0\u5728 1 \u4e2a\u4eba\u5c31\u80fd\u5b8c\u6210\u66f4\u591a\u7684\u5de5\u4f5c\u91cf\uff0c\u68c0\u6d4b\u7cbe\u5ea6\u8fd8\u63d0\u9ad8\u4e86\uff0c\u6b21\u54c1\u7387\u76f4\u63a5\u4e0b\u964d\u4e86 30%\u3002<\/strong><\/p>\n\n\n\n