Chapter 43: Only smoke the butt when smoking! This spring was produced after optimizing and improving the equipment according to the method given by Lu Shan. Its properties such as stiffness, free length, maximum deformation and fatigue life should meet the requirements of automobile front suspension springs. Lu Dehai pulled the spring with his hands to test it and felt that its performance was far superior to the mattress springs produced by the factory before. However, the Lisheng factory did not have special equipment for testing springs, and the spring performance of the mattress did not need to be tested, so Lu Dehai was not sure whether the performance of the springs met the requirements and had to find professional equipment to test it. Lu Xiang was a little angry when he saw that he had walked in front of Lu Dehai, but Lu Dehai still had a dazed look in his eyes and ignored him. "Master Lu, what are you doing!" Lu Xiang couldn't control his emotions and started yelling. "You should know what's going on in the factory right now. Everyone has been working very hard during this period, but you are just sitting here doing nothing! You've been dismantling the machine and then putting it back together again. Are you really bored? You're playing with building blocks! Xiao Huang asked you to repair the equipment, why don't you go?" "Director Lu has been thinking of our old friendship. He has considered that you are an old employee, your family is in financial difficulty, and your son needs money to go to college. He has not laid you off these times, but you should still be more tactful!" Lu Xiang was talking without stopping. The leek leaves he had eaten last night flew onto his lips, tasting sour, but he was still unaware. The workers in the factory stopped working and looked over here.
Everyone knows that there will be no good consequences if you offend Lu Xiang. Lu Dehai came to his senses and did not dwell on Lu Xiang's reproach. "Mr. Lu, the main factory (Jiangzhou Machinery Factory) should have professional spring performance testing equipment. Can we apply to test this spring?" Lu Xiang snatched the spring from Lu Dehai's hand and threw it aside. "If you want to do experiments, go home. This is not a laboratory, and this is not your own equipment." Lu Dehai came back to his senses and explained, "Boss Lu and I have already agreed on this. We can use some technical methods to change our old three-axis equipment to six-axis equipment. This will enhance the performance of our spring production. The springs can be supplied to the main factory for automobile front suspension, and we won't have to worry about sales." Lu Xiang looked at Lu Dehai with a look of disbelief. Lu Dehai is just a temporary worker. He has an untidy beard and his gray-blue work clothes are covered with engine oil. If you get closer, you can even smell the engine oil and sweat on his body. If someone said that Lu Dehai was a shoe repairman on the street, Lu Xiang would believe it. But if someone said that Lu Dehai could use some technology to improve mechanical equipment and produce the extremely difficult front suspension springs for cars, Lu Xiang would not believe it. Lu Xiang felt helpless and amused: "Master Lu, if you can come up with some kind of front suspension spring for cars, I will only smoke cigarette butts and drink industrial alcohol from now on! You will be the deputy factory director!" Lu Dehai laughed and said, "How can this be possible!" Lu Xiang's face changed. "What do you think? Go and fix the machine. What are you doing? You even brought your child to the factory." "The factory's profitability is not good. If you keep wasting time here, I will fire you. You won't be able to smoke a cigarette in the future!" When the workers saw this scene, they wanted to laugh but didn't dare to, so they had to hold it back and expressed their sympathy for Lu Dehai. Just at this time, Lu Peng came back. He walked up to Lu Xiang with a dark face, sniffed him, and scolded him: "Did you drink again last night?" Lu Xiang was a little embarrassed and said, "I have a few business friends. Our springs are not selling well. They said they could help me contact the buyer." Lu Peng had just heard the conversation between the two outside the factory. He picked up the spring from the ground and looked at it carefully in his hand. The springs that Lu Dehai had just produced were indeed completely different from the springs that the factory had produced in the past. It looks like it's going to be a little bit stronger.
Seeing this, Lu Xiang quickly said, "Brother, you don't really believe that our broken equipment can produce springs for the front suspension of a car!" "The Jiangzhou Machinery Factory has such advanced equipment, but the rate of meeting the standards for producing front suspension springs for cars is not high. If we can do it here, wouldn't all the engineers at the main factory be eating porridge?" "Brother, we are in trouble now. We still have to think of ways to solve the problem instead of rushing to seek medical help!" Lu Peng was indeed very anxious during this period. The problem the factory is facing now is that the springs it produces cannot be sold, but a large number of spring steel and other raw materials have been imported and are stored there. Fortunately, the performance of the raw materials of spring steel is still good and can meet the needs of the front suspension springs of automobiles. So the only hope at the moment is that Lu Dehai can improve the equipment in the factory and produce better springs. Even though Lu Peng had looked at Lu Shan's drawings and felt that they seemed feasible, he was still a little nervous when he heard his brother say that. Can Lu Dehai handle something that even the engineers at Jiangzhou Machinery Factory can’t handle? But now the equipment has been improved and the springs have been produced. Take it to the main factory for testing with testing equipment, and you will know whether it works or not. Lu Peng said: "Let's go to the main factory to test it together." "Master Lu, please come with me." The three of them took the springs and got into Lu Peng's Jetta and drove towards the main factory 2 kilometers away. …… Lu Shan swiped his card and entered the library of Jiangzhou University. He followed the instructions and went straight to the third floor. Most of the science and engineering books are on the 3rd floor. Lu Shan first found some mathematics books. English versions of "Princeton Reader in Mathematics", "Princeton Reader in Mathematical Analysis", "Visual Differential Geometry and Form", "Matrix Computation" and other books. The first few books are easy to understand, but they can help Poincare fully understand the development of mathematics in the past hundred years. The latter ones are basically a combination of computers and mathematics, which can also help Poincare understand cutting-edge mathematical content. The biggest change in mathematics over the past century is the explosive growth in results brought about by the introduction of computers. In addition, there are more and more subdivisions in the branches of mathematics, from the previous pure mathematics and applied mathematics to the fields of mathematical foundations, pure mathematics, mathematical structure, mathematical space, mathematical change, and applied mathematics. Each field has many branches. For example, mathematical structure has number theory, group theory, graph theory, etc. Under mathematical changes there are calculus vector analysis, differential equations, chaos theory and so on. The research of each sub-item will consume a lot of energy of the researchers, so there is a saying in the mathematics industry that goes, "Every field is like a mountain between two mountains." If you ask a professor who teaches calculus or differential equations to study group theory or graph theory, he will probably be confused and have no idea what is going on. After collecting the relevant data on mathematics, Lu Shan went to look for books related to communication information. At this time, Lu Dehai and others had arrived at Jiangzhou Machinery Factory. The springs produced using the improved equipment were fed into the testing machine.
The testing machine will use compression, tension and other methods to test the performance of the spring. Just when everyone was looking forward to it. The equipment suddenly made a shrill roar. Sorry, it's late today, please read it later! (End of this chapter)