"Next, Liu Gong will talk to you about the past and present life of quality." Huang Ligong spread his hand to Liu Ruiyang, Liu Ruiyang took it and said that this was the cooperation that the two of them were accustomed to, and the scene was avoided, so it was treated as a person to speak.

"Modern industrial history is also a history of quality inspection." As soon as Liu Ruiyang spoke, the audience became calm and thirsty.

In the era of handicrafts, there was no quality inspection. There is no fine measurement method, only hand and experience. The machines of those days, kitchen knives and axes, spears and armor, could only be flicked with their fingers. The quality inspection depends on the sound, crisp and reverberative, indicating that the carbon content is low and there are not many impurities, which is good quality.

By the time of the Industrial Revolution, it entered the first stage: large-scale manufacturing, quality control by experience. For example, there is no way to ,—— firearms, the history of human technological progress is driven by war and weapons - soon mass production will be achieved by machines, in fact, the speed of production is only accelerated, but it is still one gun and one shot. Like fingerprints, the same factory and the same batch, there is a big difference between them, because they still rely on the manual debugging and testing of the craftsmen who make the guns. Just like in martial arts novels, scrambling for dragon slaying knives, getting a good gun, such as getting a treasure, sleeping with a hug for fear of losing it, the military tradition of "guns never leave the body" actually comes from this. To make matters worse, key parts were broken, such as the trigger device, and there was nothing to replace, so the entire gun could only be thrown away.

This is not true industrialization. Without a stable and reliable quality inspection system, there will be no industrialization.

By the 1820s, it entered the second stage: standardization of production and componentization of quality control. Generally speaking, when it comes to industrialization, I like to talk about the industrial revolution and the steam engine, but in fact, replaceable parts are the starting point of modern industry, and the greatness of this innovation cannot be overstated. Replaceable parts have not been thought of before, but they must be milled before they can become a reality. The milling machine was invented by the Americans in 1816, and a few years later, the Springfield Arsenal in the United States made interchangeable parts and components for use in smoothbore guns. In 1851, at the Crystal Palace Exposition, the British were impressed by the display of American weapons, and the British realized that this small change had made industry no longer more and faster, but into a system. They immediately sent a delegation to the United States to study and research. Since then, the American system has swept across Europe, changing the arms industry, changing the history of wars, and changing the lives of mankind.

Replaceable components, in today's parlance, are the earliest standardization, which means that individuals, departments and even entire factories can independently and focus on improving the accuracy and performance of local parts, so that it is natural to require quality inspection components to produce a reliable and systematic quality inspection system.

By the 1910s, it entered the third stage: production standardization and quality inspection. Ford developed the first car assembly line, reducing car assembly time by more than 500 times. Assembly line production has high requirements for the generalization of parts, millions of parts, just take out one, assemble on the whole machine, the quality must be stable. At this time, it is not enough to rely solely on post-event quality inspection. The quality inspection system has evolved, and a new weapon has been found, statistics. Large-scale process control can be achieved by sampling, randomly inspecting a small number of parts, judging the overall quality, and then tracking their performance over time – the inventor of this method is Shewhart, the founder of modern quality management, known as the "father of statistical quality control", and his Hewhart control chart is still a basic tool for factory quality control.

"The invention of a hundred years ago laid the foundation of the modern quality inspection system and created a hundred years of industrial glory. However, we are now facing a new shadow as well. Liu Ruiyang turned his head and returned to reality. Most of the factories are set up according to modern industrial production, advanced production lines, statistical quality control systems, production management systems, etc., and we are also using advanced tools in foreign countries, why can't we still make first-class quality products? The quality inspection is qualified.

The cadres of various departments in the conference room nodded one after another. This is a common problem, not to mention the end user, sometimes internal employees will feel that their own products are always a little less interesting, customers complain again and again, but the whole process is finished, and there is no obvious quality inspection problem.

"Quality was originally a holistic concept, but now it is more and more just a process, a job responsibility, rather than an internal belief and requirement - this is the disadvantage of quality inspection components. Only by breaking down the forest into trees can a clear and strict quality inspection system be established. But the excessive refinement of the components and the bureaucratization of the organization of production will lead to the sight of the trees and not the woods. Liu Ruiyang said. The quality understood by users is that the product has good performance and experience in specific use, and is stable. The quality that the producer says is the quality inspection regulations, which are checked one by one, and it is good to pass the customs. Each department, each link, is concerned about their own work standards, do not deduct money, it is difficult to put their own work in the whole forest to consider, consider its impact on the overall product, the impact on users.

Huang Ligong took it seamlessly, "What Liu Gong said is that the overall awareness!" He stretched out his hand and pointed at Lao Lu, "If we put all the problems on the quality inspection department, our quality control is destined to be vulgar and have no height." Quality is never just a problem of a single department, but including design, parts, assembly, testing, quality inspection and other links, interlocking, any link problems, but it may be in other links, to the product level, is a disaster. ”

Lao Lu's eyes were a little hot. The cadres of various departments who were jumping at the bottom before, complaining and attacking each other, were somewhat embarrassed, like students who made mistakes, lowered their eyes and nodded silently.

"Everyone here, what I ask of you is that the overall awareness of quality should be your bottom-line thinking. It is not an external demand, just satisfied, perfunctory, but a most basic belief, just like breathing. Lao Lu, in accordance with the new requirements to convene and preside over the quality review meeting, Liu Gong and I will participate in every issue. ”

There were a few crisp applause at the door. Everyone looked over, and it turned out that Zhang Wenfeng had also arrived at the scene and had been leaning against the door and listening. He simply stepped into the doorway, raised his hands, and signaled to everyone, there should be applause here.

The conference room woke up like a dream and burst into loud applause.