{"id":6454,"date":"2025-03-11T15:00:00","date_gmt":"2025-03-11T07:00:00","guid":{"rendered":"https:\/\/www.air-tester.com\/?p=6454"},"modified":"2025-03-11T15:48:25","modified_gmt":"2025-03-11T07:48:25","slug":"jie-mi-chang-yong-chan-pin-qi","status":"publish","type":"post","link":"https:\/\/www.air-tester.com\/en\/jie-mi-chang-yong-chan-pin-qi.html\/","title":{"rendered":"Uncover commonly used product airtightness testing technology, from principle to application, a read airtightness testing!"},"content":{"rendered":"<p>In modern industrial production, airtightness is the key guarantee of product quality. Jingcheng Industrial Technology, as an expert in the field of airtightness testing, reveals the product airtightness testing technology for you to guard the quality of your products.<\/p>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong><strong>I. From \"waterlogged\" to \"watertight\"<\/strong><\/strong><\/h2>\n\n\n\n<p>The traditional water immersion method is inefficient and lacks precision.<strong>JC Series<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Airtightness Tester<\/a>With its high-precision, non-destructive testing capabilities, it helped a well-known brand of cell phones to successfully solve the water ingress problem and significantly improve the waterproof performance of the product.<\/strong>\u00a0This experience made me realize the importance of airtightness testing for product quality assurance in modern industry.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2023\/11\/qi-mi-xing-jian-ce-yi-fen-lei-1.png\" alt=\"Mobile phone IP68 air tightness detector\" class=\"wp-image-5509\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2023\/11\/qi-mi-xing-jian-ce-yi-fen-lei-1.png 1000w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2023\/11\/qi-mi-xing-jian-ce-yi-fen-lei-1-18x12.png 18w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2023\/11\/qi-mi-xing-jian-ce-yi-fen-lei-1-600x400.png 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" title=\"\u63ed\u79d8\u5e38\u7528\u4ea7\u54c1\u6c14\u5bc6\u6027\u68c0\u6d4b\u6280\u672f\uff0c\u4ece\u539f\u7406\u5230\u5e94\u7528\uff0c\u4e00\u7bc7\u8bfb\u61c2\u6c14\u5bc6\u68c0\u6d4b\uff01\u63d2\u56fe\" \/><figcaption class=\"wp-element-caption\"><em>Smartphone IP68<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Airtightness Tester<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong><strong>Second, the airtightness testing methods: there is a suitable for you<\/strong><\/strong><\/h2>\n\n\n\n<p>Airtightness testing methods are varied, Jingcheng Engineering introduces you to several commonly used and efficient methods:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>1. Pressure decay method: accurately catching small leaks<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Principle:<\/strong>Inject gas into the sealing product and pressurize it. After stabilizing the pressure, monitor the pressure decay value inside the product to judge the leakage.<\/li>\n\n\n\n<li><strong>Advantage:<\/strong>Wide range of applications, non-destructive, higher accuracy, higher efficiency.<\/li>\n\n\n\n<li><strong>Applicable:<\/strong>Automobile parts, household appliances, medical equipment, etc.<\/li>\n\n\n\n<li><strong>Precision Engineering<\/strong>: JC-TC Series<a href=\"https:\/\/www.air-tester.com\/en\/product\/jc-tc-50s-html\/\" data-type=\"link\" data-id=\"https:\/\/www.air-tester.com\/product\/jc-tc-50s.html\" target=\"_blank\" rel=\"noreferrer noopener\">Direct Pressure Airtightness Tester<\/a>The pressure accuracy is \u00b11Pa and the leakage rate resolution is 0.01ml\/min.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/03\/zhi-ya-qi-mi-xing-jian-ce-yi.png\" alt=\"Direct Pressure Air Leak Tester\" class=\"wp-image-6456\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/03\/zhi-ya-qi-mi-xing-jian-ce-yi.png 1000w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/03\/zhi-ya-qi-mi-xing-jian-ce-yi-18x12.png 18w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/03\/zhi-ya-qi-mi-xing-jian-ce-yi-600x400.png 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" title=\"\u63ed\u79d8\u5e38\u7528\u4ea7\u54c1\u6c14\u5bc6\u6027\u68c0\u6d4b\u6280\u672f\uff0c\u4ece\u539f\u7406\u5230\u5e94\u7528\uff0c\u4e00\u7bc7\u8bfb\u61c2\u6c14\u5bc6\u68c0\u6d4b\uff01\u63d2\u56fe1\" \/><figcaption class=\"wp-element-caption\"><em>JCGK<a href=\"https:\/\/www.air-tester.com\/en\/product\/jc-tc-50s-html\/\" data-type=\"link\" data-id=\"https:\/\/www.air-tester.com\/product\/qmxjcsb\/zyqmxcsy\/\" target=\"_blank\" rel=\"noreferrer noopener\">Direct Pressure Airtightness Tester<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2. Differential Pressure Method: Millimeters of difference, a hole in the ground<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Principle:<\/strong>As if weighing with a balance, synchronously pressurizing the chamber to be tested and the standard chamber, monitoring the change of pressure difference between the two chambers, and determining the leakage.<\/li>\n\n\n\n<li><strong>Advantage:<\/strong>Extremely high precision, good stability, strong anti-interference ability.<\/li>\n\n\n\n<li><strong>Applicable:<\/strong>Medical devices, aerospace components, precision sensors and other high-precision products.<\/li>\n\n\n\n<li><strong>Precision Engineering:<\/strong>JC-C10005 Series<a href=\"https:\/\/www.air-tester.com\/en\/product\/jc-c10005-html\/\" data-type=\"link\" data-id=\"https:\/\/www.air-tester.com\/product\/jc-c10005.html\" target=\"_blank\" rel=\"noreferrer noopener\">Differential Pressure Airtightness Tester<\/a>The test accuracy can be \u00b10.1Pa or better.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/02\/cha-ya-qi-mi-xing-jian-ce-yi.png\" alt=\"Differential Pressure Air Leak Tester\" class=\"wp-image-6379\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/02\/cha-ya-qi-mi-xing-jian-ce-yi.png 1000w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/02\/cha-ya-qi-mi-xing-jian-ce-yi-18x12.png 18w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/02\/cha-ya-qi-mi-xing-jian-ce-yi-600x400.png 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" title=\"\u63ed\u79d8\u5e38\u7528\u4ea7\u54c1\u6c14\u5bc6\u6027\u68c0\u6d4b\u6280\u672f\uff0c\u4ece\u539f\u7406\u5230\u5e94\u7528\uff0c\u4e00\u7bc7\u8bfb\u61c2\u6c14\u5bc6\u68c0\u6d4b\uff01\u63d2\u56fe2\" \/><figcaption class=\"wp-element-caption\"><em>JCGK<a href=\"https:\/\/www.air-tester.com\/en\/product\/jc-c10005-html\/\" data-type=\"link\" data-id=\"https:\/\/www.air-tester.com\/product\/jc-c10005.html\" target=\"_blank\" rel=\"noreferrer noopener\">Differential Pressure Airtightness Tester<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>3. Tracer gas method (helium detection): tracing of very small leaks<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Principle:<\/strong>The product is filled with helium, placed in a vacuum environment, and the leaked helium concentration is monitored by a highly sensitive gas sensor to quantitatively analyze the amount of leakage.<\/li>\n\n\n\n<li><strong>Advantage:<\/strong>Extremely sensitive, quantitative analysis, can locate leaks.<\/li>\n\n\n\n<li><strong>Applicable:<\/strong>Vacuum devices, microelectronic devices, precision instruments and other products with ultra-high airtightness requirements.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"666\" src=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/qi-mi-xing-jian-ce-yuan-li-05.jpg\" alt=\"Air tightness detection principle-05\" class=\"wp-image-6326\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/qi-mi-xing-jian-ce-yuan-li-05.jpg 1000w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/qi-mi-xing-jian-ce-yuan-li-05-18x12.jpg 18w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/qi-mi-xing-jian-ce-yuan-li-05-600x400.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" title=\"\u63ed\u79d8\u5e38\u7528\u4ea7\u54c1\u6c14\u5bc6\u6027\u68c0\u6d4b\u6280\u672f\uff0c\u4ece\u539f\u7406\u5230\u5e94\u7528\uff0c\u4e00\u7bc7\u8bfb\u61c2\u6c14\u5bc6\u68c0\u6d4b\uff01\u63d2\u56fe3\" \/><figcaption class=\"wp-element-caption\"><em>Schematic diagram of helium leakage test<\/em><\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">4. Water\/gas immersion observation: intuitive but with limited precision<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Principle:<\/strong>Inflate and pressurize the product and then immerse it in water or a special solution and observe the bubbles to determine leakage.<\/li>\n\n\n\n<li><strong>Advantage:<\/strong>Simple to operate, inexpensive and intuitive.<\/li>\n\n\n\n<li><strong>Limitations:<\/strong>Inaccurate, inefficient, destructive, and unquantifiable.<\/li>\n\n\n\n<li><strong>Precision Engineering:<\/strong>Not recommended as a primary airtightness test method and is only suitable for initial screening.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"666\" src=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/qi-mi-xing-jian-ce-yuan-li-02.jpg\" alt=\"Air tightness detection principle-02\" class=\"wp-image-6323\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/qi-mi-xing-jian-ce-yuan-li-02.jpg 1000w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/qi-mi-xing-jian-ce-yuan-li-02-18x12.jpg 18w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/qi-mi-xing-jian-ce-yuan-li-02-600x400.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" title=\"\u63ed\u79d8\u5e38\u7528\u4ea7\u54c1\u6c14\u5bc6\u6027\u68c0\u6d4b\u6280\u672f\uff0c\u4ece\u539f\u7406\u5230\u5e94\u7528\uff0c\u4e00\u7bc7\u8bfb\u61c2\u6c14\u5bc6\u68c0\u6d4b\uff01\u63d2\u56fe4\" \/><figcaption class=\"wp-element-caption\"><em>Principle diagram of airtightness testing by immersion method<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong><strong>Third, airtightness testing: quality improvement, brand value-added<\/strong><\/strong><\/h2>\n\n\n\n<p>Accurate airtightness testing brings multiple benefits to the organization:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Quality Assurance:<\/strong>Eliminate defective products, reduce after-sales rate, and improve user satisfaction.<\/li>\n\n\n\n<li><strong>Reduce costs:<\/strong>Reduce the rate of defective products and material waste, and avoid large-scale returns.<\/li>\n\n\n\n<li><strong>Elevate the brand:<\/strong>Win consumer trust, enhance market competitiveness, and increase brand premium.<\/li>\n\n\n\n<li><strong>Compliance with standards:<\/strong>Meet industry standards and regulatory requirements, and successfully pass quality certification.<\/li>\n<\/ul>\n\n\n\n<p><strong>Precision Industrial Technology's airtightness testing solutions have helped 3600+ enterprises realize product quality upgrade and brand value-added.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading cheese-cake\" style=\"margin-top:var(--wp--preset--spacing--70)\"><strong><strong>Fourth, the purchase of the guide: choose the right equipment, twice the effort and half the effort<\/strong><\/strong><\/h2>\n\n\n\n<p><strong>Precision Engineering provides you with a practical guide to buying airtightness testing equipment:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Define the need for testing:<\/strong>IP rating? Leakage rate? Pressure range?<\/li>\n\n\n\n<li><strong>Select the detection method:<\/strong>Pressure decay method? Differential pressure method? Tracer gas method?<\/li>\n\n\n\n<li><strong>Focus on equipment performance:<\/strong>Pressure Range, Leak Rate Resolution, Detection Accuracy, Test Beat, Stability. JC Series<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Airtightness Tester<\/a>It is the ideal choice for you, as it excels in all performance indicators.<\/li>\n\n\n\n<li><strong>Consider the degree of automation:<\/strong>Manual, semi-automatic, fully automatic? Precision Engineering offers a full range of products.<\/li>\n\n\n\n<li><strong>Preferred Brand Services:<\/strong>Choose the brand supplier with strength and perfect service. Precision Industrial Technology, quality assurance, serving 3600+ famous customers worldwide, products through CE certification.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"666\" src=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/guo-chan-qi-mi-xing-jian-ce.jpg\" alt=\"Domestic Air Leak Tester Recognized Globally\" class=\"wp-image-6332\" style=\"width:1200px;height:auto\" srcset=\"https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/guo-chan-qi-mi-xing-jian-ce.jpg 1000w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/guo-chan-qi-mi-xing-jian-ce-18x12.jpg 18w, https:\/\/www.air-tester.com\/wp-content\/uploads\/2025\/01\/guo-chan-qi-mi-xing-jian-ce-600x400.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" title=\"\u63ed\u79d8\u5e38\u7528\u4ea7\u54c1\u6c14\u5bc6\u6027\u68c0\u6d4b\u6280\u672f\uff0c\u4ece\u539f\u7406\u5230\u5e94\u7528\uff0c\u4e00\u7bc7\u8bfb\u61c2\u6c14\u5bc6\u68c0\u6d4b\uff01\u63d2\u56fe5\" \/><figcaption class=\"wp-element-caption\"><em>National brand Jingcheng Engineering<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Airtightness Tester<\/a>Globally recognized<\/em><\/figcaption><\/figure>\n\n\n\n<p><strong>Contact Precision Engineering<\/strong>Get professional airtightness testing solutions and free evaluation quotes to improve product quality and build a superior brand!<\/p>\n\n\n\n<p style=\"font-size:15px\"><em><strong>Original Statement<\/strong>: This article was written by<a href=\"http:\/\/www.air-tester.com\/en\/\" data-type=\"link\" data-id=\"www.air-tester.com\" target=\"_blank\" rel=\"noreferrer noopener\">Shenzhen Jingchenggongke Technology Co., Ltd.<\/a>Written by the technical team, reproduced with attribution.<strong>Data sources:<\/strong>Precision Engineering internal test data and customer cases.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>This paper introduces the airtightness testing technology, compared with the traditional water immersion method, focusing on the pressure decay method, differential pressure method, tracer gas method, immersion\/immersion observation method and other testing methods, advantages and scope of application, Precision Industrial Technology's airtightness testing equipment in the high-precision, non-destructive testing advantages, to help enterprises to improve product quality, reduce costs, and enhance the competitiveness of the brand.<\/p>","protected":false},"author":1,"featured_media":6332,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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