Under the leadership of Master Shen, Niu Xiaoqiang and Fang Dongping boarded the operating platform. The materials had been prepared on the platform, Fang Dongping first looked at the prepared materials, and did not see any problems, and then he turned his eyes to the furnace.

Niu Xiaoqiang was also watching from the sidelines, and the furnace walls were smeared with high-temperature resistant materials, some of which had fallen off and had traces of repair.

Fang Dongping quickly pointed to a repaired place and said, "Master Shen, the high-temperature resistant materials in this place are not tight enough, there are gaps, and there are still carbon slag left in the gaps, can you clean it up?"

In the past, Master Shen was too lazy to do anything in this situation, and in his opinion, such a little carbon slag did not affect the quality of molten steel at all. But he was lectured by Fang Dongping just now, and his attitude was a lot more correct, so he nodded: "No problem, I'll clean it up." ”

The two apprentices also helped, and it took the three of them more than ten minutes to clean up all the carbon slag. During this period, Fang Dongping explained to Niu Xiaoqiang another important area of industrial manufacturing, that is, materials science.

He first took Niu Xiaoqiang to familiarize himself with the preparation, and then explained: "Xiaoqiang, in addition to mastering high-end processing technology, there is a very critical place in industrial manufacturing, that is, material science, the quality of materials is directly related to the service life and quality of products, and must be paid attention to. Because these two disciplines are closely related to materials science, if you don't lay a good foundation, you will be a senior technician and product developer at most in the future, and it will be quite difficult to make really high-end products. ”

Niu Xiaoqiang sighed: "No wonder you always forced me to memorize the periodic table before, and asked me to memorize various chemical reaction formulas, it turned out to be because of this." ”

Fang Dongping nodded with a solemn expression: "Although you don't have the conditions to engage in scientific experiments at present, you can set up a laboratory after you earn money in the future, if you can make a difference in materials science, then your achievements will definitely reach a height that others can't reach, in a very vulgar sentence, that is, you could have earned 10,000 yuan, but if you have material science as a backing, you can easily earn 100,000 yuan, this is a superposition effect of one plus one is greater than two, do you understand?"

Niu Xiaoqiang was originally only interested in manufacturing technology, but when he heard this, he couldn't help but be stunned: "Master, is it really as mysterious as you say?"

Fang Dongping saw that the economic stimulus policy had an effect, and immediately added firewood: "Of course, you don't underestimate the importance of materials, take diesel engines as an example, the materials used are finalized after many tests, and many manufacturers regard the formula and production process of the materials as the treasure of the town, and absolutely do not leak to the outside world, which can be seen from here." ”

Niu Xiaoqiang originally thought that domestic manufacturers used the same materials to make engines, but at this moment, when he heard Fang Dongping say that each factory actually has its own special formula, he was stunned at first, and then relieved.

In fact, this is also very easy to understand: everyone is going to eat, and they are in competition with each other, the market is so big, if you eat too much, I will not be full, in order to be able to eat enough and eat well, whether it is technology or material formula, of course, it must be kept secret.

At present, local protectionism is prevalent in various provinces and cities in China, and some local governments will even use administrative means to forcibly intervene in order to protect local enterprises. Niu Xiaoqiang has read a lot of extracurricular books, so he knows something about it.

Fang Dongping continued: "Last time, Master talked to you about the technological gap between China and the Soviet Union, and I said at the time that the gap was at least 30 years, which is due to the fact that material science is too backward, such as aero engines, our country is not unable to design better products, but because the foundation of material science is too thin, even if there are design drawings, products cannot be made, which shows how important material science is." ”

Niu Xiaoqiang nodded again and again when he heard this: "I know, after I learn manufacturing technology, I will definitely study material science painstakingly." ”

"Fang Gong, we have cleaned up the carbon slag, do you want to check it?"

Fang Dongping turned his head to look at it, and then said with a smile: "You are worthy of being a master, you have done a really beautiful job." ”

Master Shen, who was praised, immediately smiled, smiling as brightly as a primary school student who received a certificate.

In order to let Niu Xiaoqiang have a more comprehensive understanding of material science, Fang Dongping took the initiative to chat with Master Shen about the process and precautions of steelmaking. It involves the regulation and control of temperature, the delivery time of various ingredients, the correct use of various catalysts, and so on.

These originally belonged to the category of secrecy, but there was no need to do so for Fang Dongping, because he was a great expert in this area.

The more Niu Xiaoqiang listened, the more fascinated he became, and at the same time, he also had a deep understanding of the complexity of materials science. He secretly counted and found that steelmaking, which seemed to be simple, needed to go through more than a dozen processes. These processes are very strict, and there is no room for error, otherwise substandard molten steel will be produced. He couldn't help but secretly exclaim: I really admire those predecessors, how did they invent such a complex material processing process? How many trials do it take to succeed?

Fang Dongping knew what he was thinking as soon as he saw Niu Xiaoqiang's expression, he pulled Niu Xiaoqiang to the side, "Do you think this is over?"

Niu Xiaoqiang's eyes widened: "Isn't this enough?"

Fang Dongping smiled: "Of course it's not enough, the molten steel will be poured after it is baked, and the cooling link needs to be strictly controlled in this process, if there is a problem in the cooling link, it will be scrapped together with the sand mold." ”

Niu Xiaoqiang sighed: "Master, why do I think material science is much more difficult than controlling machine tools?"

"This is true, a variety of different materials mixed together, each of which is used in different amounts, and the time to produce chemical reactions is also different, it can be said that it is a combination of many different collocations, because this field is relatively complex, I am worried that you will be distracted, so I didn't mention it to you before, with your super fast learning speed, I think you can now learn theoretical knowledge in this area, so I will mention this subject to you. ”

Niu Xiaoqiang just sighed just now, not afraid of this subject, when he heard this, he immediately asked: "Master, you don't seem to have any books on materials science at home, right?

Fang Dongping looked at Han Shuren, who was walking briskly: "This is simple, just let Director Han sponsor him, he is a double doctor of physics, mechanics and chemistry, and there must be a lot of such books at home." ”