Liu Lang introduced all the bearings in detail, including the characteristics and uses of each bearing. Most of the workers here have never heard of it. If they haven't heard of it, basically few people in the country know about it. Some bearing designs are unknown.
It was beyond their imagination and it didn't even look like a bearing.
Liu Lang's class was an eye-opener for everyone. Of course, this was just the relevant basic knowledge.
The next morning, everyone began to listen to the lecture again in the conference room. All the previous graphics on the blackboard had changed. Liu Lang left five of the bearings. Each bearing was disassembled and all the details were displayed.
.
"Today we are going to learn these five types of bearings. Everyone has seen these three. You have not seen the other two before, but we learned them yesterday. I will give you a test. Tong Zhanguo, tell me!"
"Mr. Liu, these two bearings are thrust ball bearings and cylindrical roller bearings. Thrust ball bearings are composed of a washer-shaped raceway ring with a raceway and a ball and cage assembly. The raceway ring that matches the shaft is called
The shaft ring and the raceway ring that match the outer shell are called seat rings. The two-way bearing matches the secret shaft of the middle ring. The one-way bearing can bear one-way axial load, and the two-way bearing can bear two-way axial load.
Cylindrical roller bearings are…!”
Tong Zhanguo still wanted to say something, but Liu Lang quickly stopped him.
"Okay, okay, I just want you to say your name. Good guy, your mouth is very fast. I can't stop you. You can speak better than Yoshida Yoshida!"
"Mr. Liu, I like to listen to Shan Tianfang's storytelling the most."
The other party answered immediately, and at the same time he was thinking: Mr. Liu is really awesome, how could he tell at a glance that I like Yoshida Yoshida?
Tong Zhanguo's answer made everyone laugh. This Tong Zhanguo is thirty-eight years old, almost the oldest. He has an upright temperament. He sometimes acts awkwardly, but has a warm heart. He is the big brother of young people.
"Don't laugh, everyone. Brother Tong is older than most people. His memory will weaken as he gets older, but he still memorized everything I said. This shows that Brother Tong is very hardworking. You all must learn from him."
"Well, that's right, we all have to learn from him!"
Others nodded one after another, and some even opened their notebooks to read what Liu Lang said yesterday to deepen their impressions.
"Brother Tong's answer is correct. From now on, we will learn how to make these five bearings. Everyone can understand these pictures. Let's start class!"
All five types of bearings can be manufactured by Norinco at this stage, and the domestic demand is relatively large, so they can be directly put on the market after being manufactured.
Of course, there are many steps to manufacturing a bearing. A bearing is divided into three parts: steel ball, cage and ferrule. The steel ball processing starts from the raw materials and goes through cold heading, polishing, heat treatment, hard grinding, preliminary grinding, appearance, precision
research.
Starting from the raw material, the cage needs to go through cutting, ring cutting, smoothing, forming, shaping, and punching rivet holes.
The ferrule needs to be forged, annealed, turned, quenched, tempered, ground, and finally assembled.
With so many procedures, Norinco will not participate in them one by one. What they have to do is only the core part, such as grinding, smoothing, grinding, fine grinding and other parts. The other steps will be left to other companies, Liu Lang
Return them to their standards and you can receive the goods when the time comes.
These steps are reserved for other companies in Fucheng. Of course, no one has stepped forward yet. Song Lifeng has already implemented his plan in Fucheng. It just takes time. However, Shencheng Machine Tool Factory and Jinling Machine Tool Factory can undertake some of the work.
But it's just one or two procedures.
Liu Lang started preparing for this matter last year, so he was already prepared. Last year, Wang Zhendong took people to Shencheng and Anshan several times, and signed contracts with several smelters and bearing factories, asking them to manufacture crude oil according to standards.
Blank.
The rough blanks that Liu Lang wants have to exceed the standards of other companies' own production. If they want to manufacture them, they need technological transformation, which also requires money. The other party can choose not to do it.
However, Norinco is well-known throughout the country, and the name of Fucheng Industrial Zone has gradually gained influence. Some companies still hope to cooperate with Norinco. In addition, they can also ask for some funds from the Ministry of Industry for technological transformation.
The most critical point is that Liu Lang wrote out the technical transformation plans for these factories and told them how to transform them. This is the most important link.
The example of the second-generation stainless steel smelting furnace is still vivid in my mind. It cost several millions to modify a smelting furnace, and no factory was willing to do it. As a result, the Ministry of Industry angrily gave the technology to a company that was about to go bankrupt, and there was still a huge cost.
, finally it was manufactured, and the quality of the smelted stainless steel was greatly improved. The military's annual purchase volume alone made other factories jealous, and every one of them regretted it. Now Liu Lang directly gives them the technical transformation plan, if it happens again
If they refuse, they would be fools.
Therefore, several factories agreed to manufacture the semi-finished products Liu Lang needed. As for the price, it was not important.
Of course, the main reason why they were able to transform the technology was because the bearings manufactured by Liu Lang were not too complex, and the parameters were not the best. According to foreign standards, Norinco would not be able to complete it, but even so, Liu Lang
The standards are also the most cutting-edge in the country.
The first batch of cold and heat-treated rough blanks was just shipped to Fucheng a month ago. This batch of materials is not used to make products, but is used for everyone to practice. Although the employees of Norinco have mastered the basic skills
, but further strengthening of practice is needed to be competent for the next work.
Liu Lang was still as usual, how to grind this detail, how to smooth this detail, what kind of craftsmanship to use for some special details, it can be said that every detail was explained in detail.
Put it into practice immediately after learning the theory, and learn the theory thoroughly in practice. This is Liu Lang's method, and it is also the most effective method.
Liu Lang's theories are number one in the country; Liu Lang's teaching methods are number one in the country; Norinco's equipment is number one in the country. The students who deliver the three firsts must be number one in the country. There is nothing wrong with this logic.
In the next week, the workers used up more than 10,000 rough pieces, and Liu Lang bought 30,000 pieces. The rough pieces were large and small. The larger ones cost more than three yuan a piece, and the smaller ones cost more than one yuan.
That is to say, the workers spent more than 20,000 yuan a week, and it was not a product, it was just for the workers to practice their skills. Therefore, in terms of wealth, Norinco is also number one in the country.
The semi-finished products made from these rough blanks were not very ideal. Basically, few of them could meet Liu Lang's requirements, but he was not angry at all. After all, the time was still short, and it was already very good to be able to do this. Then Liu Lang would do it again.