In the fields of industrial production and quality inspection, airtightness testing is a crucial step. Whether it is electronic devices, automotive components, or medical equipment, their airtightness directly affects the performance, lifespan, and safety of the product.

1、 Traditional airtightness testing methods and their limitations

1. Immersion method

This is a relatively ancient and intuitive testing method. Immerse the object being tested completely in water and observe if any bubbles are generated. If bubbles emerge, it indicates the presence of a leak point. The advantage of this method is its simplicity and low cost. But its limitations are also very obvious. Firstly, some minor leaks may not be accurately detected as tiny bubbles may not be easily noticeable to the naked eye. Secondly, this method is not suitable for products that are sensitive to water, such as those with electronic components inside. Once immersed in water, it may cause damage and result in product scrap. Moreover, the immersion method has low detection efficiency and requires a lot of manpower and time for the detection of a large number of products.

2. Application method

By applying soap water or other liquid with bubble display function on the surface of the object being tested, and then filling the interior of the object with a certain pressure of gas, observe whether bubbles are generated at the application site. This method also has the problem of low detection accuracy, making it difficult to determine small leaks. At the same time, the process of applying liquid may leave stains on the surface of the object, requiring subsequent cleaning work, increasing production costs and process complexity. Moreover, this method is also greatly influenced by human factors, and the uniformity of application varies among different operators, which may lead to deviations in the test results.

2、 Working principle and advantages of airtightness tester

1. Direct pressure airtightness tester

The direct pressure airtightness tester is used to determine airtightness by filling a certain pressure of gas into the interior of the object being tested, and then holding it for a period of time to detect changes in pressure. Its detection accuracy is relatively high, and it can detect small leaks. This type of detector has the ability to quickly detect and complete the detection of a product in a short period of time, greatly improving the detection efficiency. Moreover, the direct pressure detector is easy to operate and does not require particularly high professional requirements from operators, reducing the impact of human factors on the detection results. At the same time, it can be programmed with different detection parameters, suitable for various types of product testing, and has strong universality.

2. Differential pressure airtightness tester

The differential pressure airtightness tester determines airtightness by comparing the pressure difference between the measured object and the standard reference object. This method has higher accuracy and can detect small leaks. For some products that require high airtightness, such as high-end medical equipment, aerospace components, etc., differential pressure detectors can well meet the detection needs. It also has good stability and repeatability, and the consistency of multiple test results is good. On automated production lines, differential pressure airtightness detectors can be easily integrated with other equipment to achieve automated testing, further improving production efficiency and quality control levels.

3、 The Value of Airtightness Tester in Practical Applications

1. Improve product quality

The airtightness detector can more accurately detect the leakage situation of the product, whether it is a small leak or a large leak point, it can effectively detect it. This enables products with air tightness issues to be screened out in a timely manner during the production process, avoiding defective products from entering the market, thereby improving the quality of the entire product batch and enhancing the reliability and stability of the product.

2. Improve production efficiency

Compared with traditional testing methods, the airtightness tester has a faster detection speed. In large-scale production, this means that more products can be tested per unit time. Moreover, the detector can achieve automated operation, reducing the time and labor intensity of manual intervention, making the entire production process smoother and more efficient.

3. Reduce costs

Traditional testing methods may lead to misjudgments due to inaccurate detection, resulting in the scrapping of qualified products as defective products or the use of defective products as qualified products, all of which will increase costs. The high-precision detection of the airtightness detector effectively avoids the occurrence of this situation. At the same time, it reduces the costs of product maintenance, recalls, and other expenses caused by air tightness issues, saving the company a lot of money in the long run.

The airtightness tester has significant advantages over traditional testing methods in terms of accuracy, efficiency, and applicability. With the continuous development of industrial technology, airtightness detectors will be widely used in more fields, playing an important role in improving product quality and production efficiency.

Suzhou Loho Electronic Technology Co., Ltd. specializes in airtightness detectors, airtightness detectors, leak detectors, airtightness leak detectors, airtightness testers and other equipment. They are widely used, have fast detection speed, and are suitable for sealing, waterproofing, airtightness, leakage and other fields. Welcome to inquire by phone: 189-1262-8676