Quality control refers to the inspection and testing of product quality in the production process to ensure that products meet the specified quality standards and avoid the emergence of unqualified products. The content of quality control includes many aspects, which are introduced respectively below.
Before the product is produced, the corresponding quality plan must be made according to the product requirements and standards. Quality plan includes product quality objectives, quality control standards, quality control process, testing methods, etc. It is an important basis of quality control.
Incoming inspection refers to the quality inspection of raw materials after purchasing to ensure that they meet the production requirements. Incoming inspection needs to establish inspection standards, inspection methods and inspection equipment, and deal with unqualified raw materials in time.
Process control refers to the quality inspection and control of each working procedure in the product production process to ensure that the quality of each working procedure meets the specified requirements. Process control needs to establish process control points, control standards and control methods to deal with unqualified processes in time.
Finished product inspection refers to the quality inspection carried out to ensure that the products meet the quality requirements after the production is completed. The inspection of finished products needs to establish inspection standards, inspection methods and inspection equipment, and deal with unqualified products.
Quality record refers to recording and sorting out all kinds of quality data in the process of quality control for subsequent analysis and improvement. Quality records need to establish record forms and record periods, and timely analyze and process the recorded data.
Quality improvement refers to the continuous improvement and improvement of product quality in the process of quality control. Quality improvement needs to establish improvement objectives, improvement schemes and measures, and evaluate and feedback the improvement effect.
ISO quality management system refers to the quality management standards formulated by the international organization for standardization, including ISO900 1, ISO 1400 1 and so on. ISO quality management system requires enterprises to establish a perfect quality management system, including quality planning, incoming inspection, process control, finished product inspection, quality record and quality improvement, so as to improve product quality and customer satisfaction.
Six Sigma is a data-based quality management method, aiming at continuously improving product quality and production efficiency. Six Sigma includes six steps: definition, measurement, analysis, improvement, control and verification, aiming at improving product quality and customer satisfaction by eliminating defects and improving efficiency.
PDCA cycle is a commonly used quality management method, which includes four stages: planning, execution, inspection and action. PDCA cycle requires enterprises to make quality plans before production and implement plans and inspections during production.
After the production is completed, the inspection results are processed and improved, and the improvement effect is inspected and fed back. PDCA cycle can help enterprises to continuously improve product quality and production efficiency.
In a word, quality control is an important means for enterprises to improve product quality and customer satisfaction. By establishing a perfect quality plan, conducting various quality tests and controls, recording and analyzing quality data, and improving quality, we can help enterprises improve product quality and customer satisfaction and enhance market competitiveness.