The quality of the product is produced, not tested. The quality management of the early quality management was limited to the quality inspection before Dr. William Deming, the American quality management guru, put forward the idea that “product quality is produced, not testedâ€. Only the quality of the product can be checked afterwards. William Deming's quality quote points out that the quality of the product can only be guaranteed in every step of the production process, strictly in accordance with the requirements of the production process and work instructions. If the process control is neglected, it is impossible to guarantee the quality of the product by inspection alone. Because the quality inspection can only eliminate the defective products and waste products, it cannot improve the product quality. That is to say, the focus of quality control must not be placed after the fact, but must be placed in the manufacturing stage, that is, the production process stage. First, why is there a quality problem? The problems before product development are not handled well, and the throughput rate of production is too low. I hope that by means of quality fire fighting, I want to improve the frequency of testing and reduce defective or unqualified products. Adding reworked materials and unqualified materials, but without prior testing and verification, there is no accurate awareness of product quality fluctuations; The customer urges the goods, the pressure on them, the boss speaks according to his so-called actual experience, and implements special release for products that are not in the standard range, resulting in product problems; The industry has improved the quality standards of its products, and the company still produces according to the original standards. Non-human quality problems occur in the production process, but not in the detection frequency range, etc. Second, the real case of quality Case number one: An automobile accessory, using ABS (750SQ) produced by a certain company, used 3.4 tons, and found that the surface of the plastic parts manufactured with the raw material had black spots, which caused the product to be unqualified and caused huge losses. Case 2: A company produces a white film for the milk film. All the testing items are qualified, so the method is shipped, but when the film manufacturer uses it, it is found that the masterbatch tastes bad, and then complaints are made. In the end, hundreds of tons of orders, because of such a quality problem, yellow. Fortunately, the manufacturer did not produce the film to produce it, and then it was really unimaginable. Case 3: The engineering masterbatch produced by a company, due to the lack of strict color control, causes the use of plastic parts produced by the company to produce chromatic aberration, resulting in customers no longer using the company's plastic products. Case 4: Due to the strict control of plastic moisture, plastic products manufacturers use various plastic bubbles in the process of using plastics, resulting in a large number of non-conforming products, and the last dozens of tons of plastics are returned, and the losses have been compensated.  It is not uncommon for cases where the quality of plastics appears. If these conditions require the quality department to carry the black pot, it is really too embarrassing. The author believes that every aspect of the quality management system requires quality control, and these controls are obviously not fully borne by the quality inspection department or the quality management department. These controls must be implemented by the people in the best position. For example, it is easy to find quality problems in some products during the production process, but it is difficult to find in the inspection. At this time, the production operator is obviously more aware of the quality problems than the quality inspectors, if the operator does not actively control Quality, relying only on quality inspectors to check, product quality is difficult to fundamentally guaranteed. The product is basically positioned at the design stage, and then the quality is guaranteed by purchasing, processing, manufacturing, packaging, and transportation. By controlling these links, the quality is naturally controlled. Therefore, product quality is achieved in the design and production process, and quality is achieved through process management. How to control product quality: It is necessary for all members to realize that the quality of products is not good, there is no market for products, and there is no market for products. Enterprises lose their sources of profit. When the time is long, enterprises will fail, and employees will be unemployed . Of course, for the company, even if the product market is good, it must be “safe in times of danger†to make the product quality better and create a better corporate reputation. As the saying goes: "If you are in full bloom, the breeze comes." Everything is customer-centric, seeing itself as a customer, seeing itself as the operator of the next process, and seeing itself as a consumer of the product. In this way, in the work, the work will be done consciously, everyone will do the work well, and the quality of the products will be guaranteed. If you cut corners at work, the harm will be your own vital interests. " The quality of the product is produced and designed, not by inspection. It is necessary to do things right the first time. " This is not a slogan, which is a good example of the preventive nature of product quality, if the quality control It is difficult to control the quality of the product without starting from the source. Even if a large amount of inspection manpower is put into production to control, and the production of a large number of defective products or even waste products due to no control from the source, the cost of the product will be greatly improved. Moreover, the quality problems of some products may not be found and compensated from the subsequent processes, which requires us to do things in the first place to prevent quality problems. Quality management is the whole process and the whole company. The work between all departments of the company must be orderly and effective. All quality management personnel and operators must be strictly in accordance with the procedures. The chances of making a mistake will increase, and the quality of the product cannot be guaranteed. 80% of quality problems are out of management, and only 20% of problems originate from employees. That is to say, managers have controllable defects of about 80%, and operators have controllable defects of less than 20%. While the manager is improving the management level, the operator must also understand the following four points: A. The operator knows what he does and why he does it; B. The operator knows whether the products he produces meet the requirements of the specification; C. The operator knows what will happen if the product he produces does not meet the specifications; D. The operator has the ability to properly handle abnormal conditions. If the above four points have been met and the material conditions such as equipment, tooling, testing and materials are in production and the fault still occurs, it is considered to be a controllable defect of the operator; if any of the above four points cannot be satisfied or It is the responsibility of the manager that the production, equipment, tooling, testing, and materials do not have the necessary conditions to cause failure. Only by understanding the responsibility of quality issues can we improve the quality of the problem in a targeted manner. Quality is not the best, only better; quality improvement is a continuous, continuous improvement process, it follows the PDCA model, PDCA mode can be briefly described as follows: P-plan: develop improvement plans based on product requirements; D—Implementation: implementation plan; C—Inspection: Inspection of processes and products according to product requirements; A—Disposal: Take measures to continuously improve product quality. Only in this way will our product quality continue to rise, and only by continuously improving quality and innovation will we continue to win the market. Guarantee quality, the pursuit of profit is the company's eternal goal. To develop, enterprises have to pay attention to the cost of production. However, cost is closely related to quality. If quality is done well, the cost of the product can be reduced to a minimum. If the quality of the product is not good and the customer returns a complaint, the cost will be Will stay high, and even push the company to desperate. The reason for the decline of many enterprises: not because there are no customers, no orders, but because the internal management of the enterprise is not good, the cost can not be reduced and can not participate in market competition, enterprises should take the lead. But the quality is not the stricter and more favorable to the company. Conversely, excessively improving product quality will result in excess quality and also increase production costs. Therefore, when we are in production, we require all processes and links to be strictly in accordance with customer standards, so that we will minimize costs and increase market competitive advantage. China Highway Safety Guardrail,Galvanized W Beam Guardrail supplier & manufacturer, offer low price, high quality Sed Highway Guardrail,Beam Crash Barrier, etc. Highway Safety Guardrail,Galvanized W Beam Guardrail,Beam Highway Guardrail,Beam Crash Barrier Shandong Hengfeng Group , https://www.luhengfeng.com
Third, how to comprehensively control product quality
First, establishing quality is the lifeblood consciousness of enterprises
Second, establish a quality customer awareness
Third, establish a sense of prevention of quality
Fourth, establish a procedural awareness of quality
Fifth, establish a sense of responsibility for quality
Sixth, establish a continuous awareness of quality
Seventh, establish a cost consciousness of quality (ie quality standard awareness)
——Hangzhou Yijiantong E-commerce Co., Ltd.
Is the product quality produced or tested? this is a problem