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2026

Leak-Tightness Testing in the Liquid-Cooled Heat Dissipation Industry

Quick Q&A: How Are Leak Tests Conducted on Liquid-Cooling Plates and Copper Tube Assemblies? Jingcheng Engineering’s Comprehensive Guide to Applications in the Liquid-Cooling Industry

This article provides a systematic overview of technical solutions and key selection criteria for airtightness testing in the liquid cooling industry. For products such as liquid cooling plates and copper tube assemblies, JCGK employs a combined solution consisting of “testing instruments + custom fixtures + multi-channel testing + automation interfaces,” The core of this approach involves verifying the sealing reliability of enclosed flow channels using either the direct pressure method or the differential pressure method. It emphasizes that in mass production scenarios, six key factors—test pressure, leakage standards, product volume, testing cycle time, fixture design, and automation interfaces—must be comprehensively considered.

Leak Testing in the Automotive Industry

Applications of JCGK Leak Detection Equipment from Jingcheng Engineering in the Automotive Industry: From Component Testing to Supply Chain Collaboration

This article analyzes the reasons behind the surge in demand for airtightness testing in the new energy vehicle industry: Sealing requirements for new energy vehicles are far stricter than those for gasoline-powered vehicles, involving several new critical systems such as battery packs, liquid cooling systems, and thermal management. The article introduces testing methods such as direct pressure, differential pressure, and flow rate testing, emphasizing that automated testing and data traceability have become essential industry requirements. It also highlights the comprehensive solution capabilities of Shenzhen Jingcheng Engineering Technology Co., Ltd. (JCGK) as an industry leader.

Differential Pressure Leak Tester

Q&A: Why Do New Energy Vehicles Need to Undergo Comprehensive Airtightness Testing? To Avoid the Risk of Large-Scale Recalls

Taking the recall of 33,473 Xpeng X9 vehicles due to air spring airtightness defects as a starting point, this article analyzes the importance of airtightness testing for new energy vehicles. The article points out that core components of new energy vehicles demand higher standards for sealing reliability, driving the transition from spot checks to 100% inspection for airtightness testing. It introduces two testing principles—the direct pressure method and the differential pressure method—and uses the Jingcheng Engineering JC-C10005 series as an example to demonstrate that domestically produced equipment has achieved high-precision micro-leak detection, wide pressure adaptability, and automated integration into production lines.

About our JCGK company

Who is Jingcheng Engineering (JCGK)? A domestic air-tightness testing brand dedicated to helping the manufacturing industry detect leaks.

This article introduces JCGK, founded in 2016, a leading domestic brand of airtightness testing equipment that specializes in helping manufacturing companies identify the risk of micro-leaks in their products through airtightness leak detection, sealing tests, and other technologies. Its core strengths lie in independent R&D, production line integration capabilities, and localized services. The company’s business spans multiple industries, including new energy, automotive, consumer electronics, medical devices, and liquid cooling, and is committed to providing end-to-end reliability assurance—from product testing to the establishment of quality management systems.

Characteristics of Waterproof Breathable Membranes

Quick Q&A: Reliability Validation in the Waterproof and Breathable Membrane Industry—How Can Two Conflicting Properties Be Tested at Once?

This article explains how the waterproof and breathable membrane industry can simultaneously verify the two conflicting properties—waterproofing and breathability—through a comprehensive testing solution. Addressing the “water-blocking yet breathable” characteristics of ePTFE membranes, JCGK has proposed an integrated testing solution that resolves the issue of trade-offs in performance—which traditional single-parameter testing fails to detect—and supports quality control across all stages, from R&D validation to mass production automation.

NVIDIA AI Liquid-Cooled Servers

How to Choose a Leak Test Solution for Liquid-Cooled Plates? A Decision-Making Model Based on Three Factors: Leak Rate Requirements, Daily Production Volume, and Operating Costs

This article addresses the scenario of 100% inspection on production lines in the airtightness testing industry, emphasizing that repeatability is more critical than accuracy. Based on 11 consecutive sets of actual measurement data from the JCGK Direct-Pressure Airtightness Tester by Jingcheng Engineering, the study verifies that its leakage values remain stable at 6–7 Pa, with fluctuations of only ±1 Pa. The paper analyzes the three key technological pillars supporting this performance—high-precision sensors, proprietary gas path control, and temperature drift compensation algorithms—and concludes with recommendations for selecting the appropriate model for different pressure scenarios.

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