Tsinghua University's foundry is located in the east of Tsinghua School in the second gate, and Professor Jiang Buju, a foundry expert, is staring at the technicians pouring a metal piece. She is researching the effect of the particle size grade of investment casting sand powder on the surface quality of castings.

In the case that the existing materials and processing technology are still very backward, how to skillfully solve the quality problem of castings has always been an important topic in the research of the foundry industry! It seems to be a trick, but it has to be said that it is forced out by the backwardness of domestic processing technology.

In Europe, the United States, Japan and other countries, the foundry industry is an industry that is highly valued by various countries, and has also received the attention of various governments, and the results achieved are very rich. For example, the military aircraft engine in the United States adopts the technology of directional solidification without margin precision casting composite cooled hollow turbine blades.

In modern times, industrially developed countries have developed precision casting technology to a very high level. In terms of melting and casting methods, vacuum orientation and single crystal blade precision casting technology have been successfully developed, and the precision and finish of precision castings produced by casting are quite good. For example, the surface accuracy of the turbine blades produced by Rolls-Royce in the United Kingdom is ±0.127mm, and the local accuracy is 0.05mm.

After the founding of the People's Republic of China, China's foundry industry has been trying to catch up with and surpass the international high-level precision casting technology. However, due to the lack of attention from the state, the development of the entire industry is very slow.

I don't know what's going on, China's development technology is always lost. For example, the development of aero engines, but forget the continuous research of materials; The development of the machinery industry, but forget to pay attention to precision casting technology!

Lin Qiangsheng heard that the United States attaches great importance to forward-looking research on technology very early, but I don't know if it is because of the depth of research in this area, so the technology of the Americans gives people a very advanced feeling. China does not pay enough attention to this aspect of the relationship, or the country's leaders do not pay enough attention to the work of technological foresight, so they always catch up with others.

In other words, there is a Lin Johnson in China. And there is a group of Lin Johnson and Johnson in the United States who are studying the future!

Professor Jiang Buju has been engaged in the research and teaching of precision casting technology for a long time. She is not afraid of the hard work of the foundry production site, and often works in the real yàn room and the front line of foundry production. She is good at doing extensive research work and has a large number of valuable first-hand technical information. Professor Jiang Buju has a wide influence in the foundry world and is highly respected.

It can be said that Jiang Buju alone has held up most of the sky of the entire Chinese precision casting industry! She is a female Qian Xuesen in the precision casting industry!

"Good!" The master worker shouted, and the molten iron furnace immediately stood up. A few drops of extremely hot molten iron fell to the ground with a stabbing sound.

Jiang Buju looked back at the students, said a few words, and after waiting for the workpiece to cool down for more than half an hour, Professor Jiang Buju carefully opened the sand mold with his own hands.

Looking at the palm-sized metallic workpiece, Professor Jiang Buju estimated that she could figure out the number jù, but she still said to the students: "Take a test, make the number jù." ”

After the completion of a qiē, although the tolerance is still not optimistic, Professor Jiang Buju has already sharpened his tenacious character many times.

The students shook their heads and sighed. Professor Jiang Buju picked up the notebook and looked at the number of jù and frowned secretly, after thinking for a long time, she turned around and wanted to go back to the office to find something, and suddenly found a young man standing not far away looking at her.

The young man is Lin Qiangsheng, this foundry is not easy to find in the east of Tsinghua Academy, Lin Qiangsheng showed many certificates along the way to find this place.

Professor Jiang Buju found that he didn't know the student, so he asked, "Classmate, who are you looking for?" This is the foundry of the Department of Mechanical Engineering, so don't mess around. Beware of accidents! ”

Looking at Yan Sù's middle-aged female professor, Lin Qiangsheng asked with a smile, "You are Professor Jiang Buju, right?" I'm here to visit you! ”

"Little comrade, are you looking for me?" Jiang Buju looked at Lin Qiangsheng suspiciously and asked.

Lin Qiangsheng nodded again and again and said, "Yes!" I'm from Ben Thanh Automobile Company. Here's my proof! As he spoke, Lin Qiangsheng took out the certificate again, and now the certificate is needed everywhere in these years, and he is not allowed to live in a hotel without a unit certificate!

"Hello Comrade Lin Qiangsheng, come with me here." Professor Jiang Buju took the certificate and looked at it, and then said to Lin Qiangsheng.

The two of them went to an office in the factory. It can be seen that Jiang Buju is very familiar with this place, she hooked the bamboo hat on her clothes, wiped her face with a towel, and then said to Lin Qiangsheng: "Do you want to drink water?" I don't have a cup here! ”

Lin Qiangsheng said with a smile: "Professor Jiang, you poured me water, I'm not thirsty!" ”

Jiang Buju looked at Lin Qiangsheng and kept smiling. Stretched out his hand not to hit the smiling man, so he also smiled and said, "Little comrade, what can you say about what you came to me now?" ”

Looking at Professor Jiang Buju, Lin Qiangsheng said seriously: "My name is Lin Qiangsheng, in fact, I have another identity, I am the general manager of a precision instrument manufacturing company in Bincheng!" This time, I came mainly to invite Professor Jiang to visit our company and give us guidance! As he spoke, Lin Qiangsheng took out another unit certificate with a clear red company seal on it, which can prove that what he said is indeed credible. There is indeed such a precision instrument company, and it proves that it is written on the text that he is indeed the general manager!

Professor Jiang Buju looked at Lin Qiangsheng in surprise after reading the text, he didn't expect such a young young man to be the general manager of a company!

"Professor Jiang, you can take the subject to do research in our company, and our precision instrument company will provide you with equipment for free without charging you any fees!" Not only that, but we can also provide you with real funds! As long as you research the real results, you get the paper, we get the technology! What do you think of industry-university-research Suntory? Without waiting for Jiang Buju to say anything, Lin Qiangsheng immediately said a series of requests.

It should be said that these requests are good, if it is really very feasible to ask Professor Jiang Buju to do research, and Professor Jiang Buju has not done it before.

But Lin Qiangsheng's age made her feel a little unreliable, which made the calm Professor Jiang Buju hesitate, she said: "I still have classes and my students at Tsinghua University, your company is far away in Bincheng, let me think about it." ”

Seeing that Professor Jiang Buju was not very able to make up his mind, Lin Qiangsheng took out the bombshell news and said, "Professor Jiang." Our company has advanced silica sol production technology, processing equipment has high-speed precision parts die-casting machine, imported precision leveling machine, automatic wax processing system! ”

"What? Do you have these advanced equipment? Professor Jiang Buju, who was originally calm, couldn't be calm anymore when he heard the names of these devices.

As mentioned above, the country does not attach great importance to the precision casting industry, so many years they have been casting real room are patchwork and then make some equipment for testing, Lin Qiangsheng said that Professor Jiang Buju has heard of these advanced equipment, but he has never seen it!

"Really? Do you have a fully automated wax handling system, as well as a colloidal silica production technology? Jiang Buju asked in surprise. She couldn't hold her breath anymore. stood up and stared at Lin Qiangsheng's eyes tightly.

Lin Qiangsheng nodded and said: "We not only have these equipment, but also precision casting machines, horizontal double-station hydraulic wax molding machines, these equipment are very common in our company!" ”

"You also have a two-station press! Little comrade, you didn't lie to me, did you? Professor Jiang Buju asked Lin Qiangsheng in disbelief.

In today's domestic precision casting is very primitive, and the precision casting workshops of some large factories are one or two masters leading a group of technicians, this precision instrument company in Bincheng has such advanced equipment, which simply shocked Professor Jiang Buju!

Lin Qiangsheng smiled and said: "Professor Jiang, if you are interested, come to our company to have a look, our company warmly welcomes you to visit!" We can also entertain your students. It's like an internship. You and your students, we will reimburse the round-trip travel expenses, accommodation and food expenses, what else are you worried about? ”

Jiang Buju didn't answer immediately, but asked continuously: "Which department does your company belong to?" Why haven't I heard about the import of these advanced equipment?! ”

Lin Qiangsheng shook his head with a smile, but said: "When you arrive in Bincheng, you naturally know everything!" ”

"Professor Jiang, reimburse the round-trip travel expenses, room and board expenses!" Before leaving, Lin Qiangsheng told again, waved his hand with Professor Jiang Buju, and turned around and walked towards the gate.

Jiang Buju has been standing at the door for a long time, unable to calm down. The young man had surprised her too much. As soon as she turned around, she immediately ran to the mechanical department, Jiang Buju wanted to ask what kind of enterprise this precision instrument company in Bincheng was.

Sit in the car. Lin Qiangsheng took out a list from his bag, with a list of names on it.

In fact, the team of scientists in our country can be called luxurious, no matter which discipline has a group of leaders and masters in the industry!

Mr. Lin's list was bought from a consulting firm in the United States. In those ten years, domestic experts and scholars accumulated a large number of professional papers. China has once again opened its doors to the world, and these scholars have published their academic research in some foreign academic journals.

Therefore. It was much easier for Lin Qiangsheng to find these people.

This is simply an impossible task in China, especially since many people still work in secret units. As long as he pays abroad, a company will immediately find these people for him.

Among the list are Wei Zhaorong, the former chief engineer of the Inner Mongolia Institute of Metal Materials, a senior engineer who participated in the trial production of tank tracks, crankshafts, Soviet-style Type 76 tank engine parts and Type 59 aluminum alloy gearboxes.

Shi Changxu. Specialist in metallurgy and materials science. Academician Zhou Yaohe, an expert in physical metallurgy, academician Fu Hengzhi, a well-known expert in materials and metallurgy, Professor Zeng Yicheng, is engaged in rare earth research, casting alloy and casting forming technology experts.

There are also a large number of famous experts and professors such as Fang Guiru, Guo Shuyan, Huang Naiyu, Jia Chengbing, Jia Jun, Li Chuantong, Li Rongde, Miao Liang, Park Dongxue, Qiu Hanquan, Sun Guoxiong, Tan Derui, Tang Yulin, Wan Renfang (former chief engineer of Dongfeng Motor Company No. 1 Foundry Factory), Wu Dehai, Yu Yonglai, Zhang Zhongqiu, Zhao Lixin, Zhou Jiyang, Zhou Jingyi, etc.

The domestic experts in the machinery, materials, and foundry industries can be called huge, looking at the names on the list and the professions they are engaged in, Lin Qiangsheng is excited and helpless.

I am excited that a group of extremely outstanding experts and scholars can be selected in any discipline in China; Unfortunately, these people are too scattered, as if they are all fighting on their own, and they can't form a joint force! (To be continued......)