We will provide technical support for your company's air leak inspection.
We will introduce the Air Leak Check. It is a commonly used inspection method for checking the airtightness of products and parts, known as leak testing. This process aims to detect leaks, ranging from large to small, through simple and easy-to-understand methods such as immersion tests, which can confirm significant leaks, and helium (He) leak tests, which can detect minute leaks. Among these, the most widely used method on manufacturing lines is the Air Leak Check. The Air Leak Check primarily involves simultaneously pressurizing a leak-free master work and the workpiece being inspected, and detecting the differential pressure in the circuit from this equilibrium state (a differential pressure occurs if there is a leak in the workpiece) to confirm the presence of a leak. (The detection accuracy of the Air Leak Check is 10¹ to 10⁻² ml/min; a leak value of 10¹ ml/min corresponds to the detection of 20,000 bubbles (1 mm in diameter) per minute, while a leak value of 10⁻² ml/min corresponds to the detection of 20 bubbles (1 mm in diameter) per minute.) Education, guidance, and support regarding the introduction of this Air Leak Check, including the management methods for the master, are subjects of consulting.
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basic information
What is important in the air leak testing process is the nature of the master that guarantees testing accuracy. There are two types of masters: good product masters and defective product masters, both of which must have an internal volume equivalent to that of the fluid products, and their air penetration structures must also be equivalent. (Since the differential pressure detection method is time-dependent) in this case, it is not particularly problematic for the good product master to simply prepare a workpiece that is completely leak-free. However, the defective product master is not so simple. It is often seen that lines use completely leaking workpieces as defective masters, but this is not the proper way to define a defective master. A defective master must consider the variability in detection accuracy and should have a leak that is just on the edge of being acceptable. (Taking into account the distribution capabilities of the good product group) To achieve this, it is necessary to construct a system that effectively combines the internal volume of the measurement circuit, the leak master provided by the manufacturer, and the actual workpieces.
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Regarding air leak testing, we will provide support based on the premise that we have extensive technical experience and that the company can effectively operate inspection technology-related tasks.
Company information
For manufacturing companies, the preparation of tools for production (jigs, molds, manufacturing equipment), the construction of line configuration and layout, and the creation of PFMEA and QC process charts to maintain product quality are fundamental to manufacturing and hold an important position. In this business, we focus on consulting in production technology, directly linked to the production site, particularly targeting small and medium-sized manufacturing companies, and we aim to support the growth of these enterprises. We will adjust the consulting targets based on the confirmation of customer needs.
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