Zibo single and double flange electric ball valve product quality system control The single and double flange electric ball valve is the weakest component in the pipeline system and plays a key role in the normal operation of the pipeline. In order to ensure product quality, an effective quality assurance system should be established to prevent and control the whole production process. First of all, the raw materials shall be delivered to the factory with complete quality certificates to ensure that the quality of the materials used can meet the design requirements. After entering the factory, all materials shall be rechecked (including chemical composition analysis and mechanical property test of stainless steel plate, steel plate and other materials), and unqualified materials shall be strictly prohibited. Secondly, the quality of special processes should be strictly controlled during the production process. Special processes (such as welding, forming, nondestructive testing, and testing) must be strictly inspected, with detailed inspection records and strict process supervision. Obvious inspection and test status identification shall be provided during production to ensure that production activities are carried out in a reasonable and orderly manner. Each process shall be handed over according to the inspector's inspection marks, and parts without marks, wrong marks and unqualified parts shall not be transferred to another process.
The next process has the right to reject the products without qualification marks. Finally, the finished products shall be comprehensively inspected before warehousing, with detailed records, product identification and traceability. The quality assurance department shall often carry out quality analysis activities, hold quality analysis meetings for existing quality problems in time, take effective preventive and corrective measures in time, deal with them in a timely manner, and keep records and archives. At the same time, there should also be a sound user service system, regular service, timely feedback of quality information, and timely improvement of product quality. The measuring instruments and meters used for inspection shall be calibrated regularly to ensure that the measuring instruments and meters used in production and inspection are used within the validity period of verification and ensure their effectiveness.
We believe that as long as the product quality is controlled from the whole process of electric ball valve manufacturing, especially the process management and control, and a perfect and effective quality assurance system is established, the manufacturing quality of electric ball valve can be controlled, and the quality of single and double flange electric ball valves in China will also reach a higher level.