In engine manufacturing, the air tightness testing technology plays a crucial role in ensuring product quality. Chery Automotive's Engine Division has adopted online air tightness testing technology. Over the years of application, it has accumulated valuable experience in setting testing parameters and using leak detection equipment.
To govern vehicles “Leakage of gas, water, and oil” The issue of three leaks, particularly in the engine's three leaks, has been a concern during the engine manufacturing process, as manufacturers have traditionally adopted...“Submersion Leak Test”Leak tests are conducted on the engine cylinder block, cylinder head, exhaust pipe, and intake manifold to identify substandard parts. This method fails to accurately determine the leakage amount of the tested parts, and the liquid inside the leakage holes experiences tension, increasing flow resistance. This often leads to missed detections, and it also poses challenges such as the need for drying and non-automation capabilities.
As casting quality, machining quality, and assembly quality improve, as well as20Century80Since the era, the application of online airtightness leak testing technology has finally brought complete control over the engine's three-leak problems, ensuring reliable engine quality. Online airtightness leak tests conducted on production lines for cylinder blocks and cylinder heads can effectively prevent issues from being discovered only after the assembly is complete, thereby reducing unnecessary losses.
In our engine cylinder block and cylinder head production lines, we have intermediate and final airtightness leak testing processes in place according to the process arrangement. Some leak testing processes are also equipped with water testing equipment as needed, primarily used to identify leak points in airtightness test failures. Of course, not all leak points can be found through water testing. This article focuses on the application of our in-line airtightness leak testing technology in the production lines of cylinder blocks and cylinder heads.
