Sinopec has been granted an invention patent for “An acoustic testing system and method for the metal pitting process”

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Sinopec has been granted an invention patent for \"An acoustic testing system and method for the metal pitting process.\" According to data from the Tianyancha app, Sinopec (600028) has obtained a new invention patent; the title of this patent is \"An acoustic testing system and method for the metal pitting process,\" with the patent application number CN202110439795.6. The patent was granted on August 12, 2025. Patent Abstract: The present invention discloses an acoustic testing system and method for the metal pitting process, which includes a corrosion environment simulation device used to provide the corrosion environment required for testing ； Stress environment simulation device, used to provide the test specimen with an internal stress environment under type I temperature conditions during testing ； An acoustic emission detection device and an image acquisition device, which are used to collect, respectively, the acoustic emission signals indicating the changes in the pitting process of the test specimen as well as the test images during testing ； An information processing device is used to synchronously acquire acoustic emission signals and test images; based on these, an integrated analysis of the pitting progression of the test specimen under various combinations of temperature, corrosion severity, and stress conditions is carried out to obtain corresponding analysis results. This system of the present invention enables simultaneous observation of the influence mechanisms of different temperatures, different pitting shape patterns, different stress levels, and different corrosion intensities on the pitting damage of test specimens, thereby providing a basis for the selection of materials and real-time monitoring of high-temperature special equipment.