Uncover commonly used product airtightness testing technology, from principle to application, a read airtightness testing!

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.

I. From "waterlogged" to "watertight"

The traditional water immersion method is inefficient and lacks precision.JC SeriesAirtightness TesterWith 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. This experience made me realize the importance of airtightness testing for product quality assurance in modern industry.

Mobile phone IP68 air tightness detector
Smartphone IP68Airtightness Tester

Second, the airtightness testing methods: there is a suitable for you

Airtightness testing methods are varied, Jingcheng Engineering introduces you to several commonly used and efficient methods:

1. Pressure decay method: accurately catching small leaks

  • Principle: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.
  • Advantage:Wide range of applications, non-destructive, higher accuracy, higher efficiency.
  • Applicable:Automobile parts, household appliances, medical equipment, etc.
  • Precision Engineering: JC-TC SeriesDirect Pressure Airtightness TesterThe pressure accuracy is ±1Pa and the leakage rate resolution is 0.01ml/min.
Direct Pressure Air Leak Tester
JCGKDirect Pressure Airtightness Tester

2. Differential Pressure Method: Millimeters of difference, a hole in the ground

  • Principle: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.
  • Advantage:Extremely high precision, good stability, strong anti-interference ability.
  • Applicable:Medical devices, aerospace components, precision sensors and other high-precision products.
  • Precision Engineering:JC-C10005 SeriesDifferential Pressure Airtightness TesterThe test accuracy can be ±0.1Pa or better.
Differential Pressure Air Leak Tester
JCGKDifferential Pressure Airtightness Tester

3. Tracer gas method (helium detection): tracing of very small leaks

  • Principle: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.
  • Advantage:Extremely sensitive, quantitative analysis, can locate leaks.
  • Applicable:Vacuum devices, microelectronic devices, precision instruments and other products with ultra-high airtightness requirements.
Air tightness detection principle-05
Schematic diagram of helium leakage test

4. Water/gas immersion observation: intuitive but with limited precision

  • Principle:Inflate and pressurize the product and then immerse it in water or a special solution and observe the bubbles to determine leakage.
  • Advantage:Simple to operate, inexpensive and intuitive.
  • Limitations:Inaccurate, inefficient, destructive, and unquantifiable.
  • Precision Engineering:Not recommended as a primary airtightness test method and is only suitable for initial screening.
Air tightness detection principle-02
Principle diagram of airtightness testing by immersion method

Third, airtightness testing: quality improvement, brand value-added

Accurate airtightness testing brings multiple benefits to the organization:

  • Quality Assurance:Eliminate defective products, reduce after-sales rate, and improve user satisfaction.
  • Reduce costs:Reduce the rate of defective products and material waste, and avoid large-scale returns.
  • Elevate the brand:Win consumer trust, enhance market competitiveness, and increase brand premium.
  • Compliance with standards:Meet industry standards and regulatory requirements, and successfully pass quality certification.

Precision Industrial Technology's airtightness testing solutions have helped 3600+ enterprises realize product quality upgrade and brand value-added.

Fourth, the purchase of the guide: choose the right equipment, twice the effort and half the effort

Precision Engineering provides you with a practical guide to buying airtightness testing equipment:

  1. Define the need for testing:IP rating? Leakage rate? Pressure range?
  2. Select the detection method:Pressure decay method? Differential pressure method? Tracer gas method?
  3. Focus on equipment performance:Pressure Range, Leak Rate Resolution, Detection Accuracy, Test Beat, Stability. JC SeriesAirtightness TesterIt is the ideal choice for you, as it excels in all performance indicators.
  4. Consider the degree of automation:Manual, semi-automatic, fully automatic? Precision Engineering offers a full range of products.
  5. Preferred Brand Services:Choose the brand supplier with strength and perfect service. Precision Industrial Technology, quality assurance, serving 3600+ famous customers worldwide, products through CE certification.
Domestic Air Leak Tester Recognized Globally
National brand Jingcheng EngineeringAirtightness TesterGlobally recognized

Contact Precision EngineeringGet professional airtightness testing solutions and free evaluation quotes to improve product quality and build a superior brand!

Original Statement: This article was written byShenzhen Jingchenggongke Technology Co., Ltd.Written by the technical team, reproduced with attribution.Data sources:Precision Engineering internal test data and customer cases.

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