关键词: 重卡行业；过程质量控制；三检制；应用研究；三检步骤化

Abstract: As one of the basic methods in quality management, three inspections are widely used in all walks of life. Three-inspection is a working method of self-inspection of employees, mutual inspection of adjacent stations, and special inspection of inspectors. The main content of this paper is how to refine the three-inspection system principles and implementation steps. In the process of quality control, the company innovatively proposes to refine the requirements of self-inspection, mutual inspection and special inspection in the three-inspection system into a seven-step selfinspection method, three-step mutual inspection method and five-step special inspection method. Use formulas to make it easier for employees to remember. At the same time, the marking standard of the three-inspection marking line is formulated, and the color, length and direction of the marking line are specified, so that the implementation results of different personnel are consistent, so as to effectively combine the three-inspection system with the actual production, and improve the level of process quality control. After the company has promoted and applied this method, the number of quality problems has been significantly reduced.

Key words: Heavy truck industry; Process quality control; Three inspection system; Application research; Three inspection steps