"You wait." After reading a few bad drawings, Lu Jianfei was in a bad mood. He asked Zhao Yuemin to sit down, and he painstakingly taught him to be down-to-earth.

When Zhao Yuemin said that the product he designed was to replace the cone bit, Lu Jianfei was even more painful to educate:

"Xiao Zhao, the problem of cone bits being difficult to adapt to hard rock formations has been discussed in the industry for two years. To this end, our institute has published several papers on how to improve cone bits. ”

"But...... Experiments come and go, and the results are always not ideal. Lu Jianfei rubbed his temples with both hands, "The cone bit has its limitations because of its structure......

"Director Lu, have you ever thought about finding a new material to replace the cone bit?"

"Substitution?"

Zhao Yuemin began to use diamond as a new material for drill bits, and the whole thing was explained to Lu Jianfei. Lu Jianfei listened, his eyes lit up. Zhao Yuemin's design ideas are not limited to utopian dreams, but have many theoretical foundations.

"Quickly show me the drawings......" Lu Jianfei took the drawings and read them carefully.

Reading this drawing, the long-experienced director of the research institute felt a wave in his heart that had never been seen before. Zhao Yuemin's age is about the same as that of a junior at the Petroleum Institute, but the drawing process is rigorous and even artistic.

"Director Lu, you criticize ......," Zhao Yuemin said politely.

Lu Jianfei didn't dare to nod. In the past, as long as the drawing work of any student or even teacher of the Petroleum Institute was handed to him, he could immediately see one, two, three. But this time, he couldn't express his opinion for a long time.

This drawing of a diamond-encrusted drill bit even uses a production process that he was not familiar with.

"Young man, you leave this drawing here and wait for me for two days. Two days later, I'll give you an answer. Lu Jianfei said with a solemn face.

Two days later, Zhao Yuemin and Hu Lin came to the institute as scheduled. They were greeted by Lu Jianfei and seven or eight senior researchers with the title of professor.

These domestic experts sat in a row, each with a notebook in front of their desk, on which were densely packed with records.

Zhao Yuemin was also taken aback by this formation when he saw this group of old professors, who were generally sixty years old.

When Lu Jianfei saw Zhao Yuemin, he immediately pushed him in front of the experts, and excitedly introduced: "This is what I said before, the young scholar who designed this drawing. ”

Zhao Yuemin's face turned red when he heard that he was called a scholar. He didn't go to college, but was called a scholar by these experts, who generally had doctoral degrees.

Those old professors all looked at Zhao Yuemin with a look of disbelief, as if they were looking at a monster.

"Xiao Zhao, I have read your diamond drill bit drawings, which are very good." Lu Jianfei did not hesitate to praise, "The level of cartography is better than that of the experts in our institute." Moreover, using diamond as an entry point can be regarded as a blind corner in our materials. ”

Lu Jianfei said with appreciation and encouragement: "It is no exaggeration to say that this drawing of yours has overcome the problems in the field of drilling technology in the past two years. ”

Zhao Yuemin originally had great respect for high-level intellectuals such as scientific laboratories and research institutes. Now in turn, he is praised as a flower by the other party, which is really face-saving.

"But what, Xiao Zhao. After two days of research, we thought that ......," Lu Jianfei continued, "the specific data in the drawings on the hardening method of the surface of the drill bit and the erosion resistance test of the hardened layer are still a little insufficient. ”

Zhao Yuemin nodded, thinking to himself how could his father think so thoroughly, since he handed over the drawings to the research institute, he also counted on the other party to check and fill in the gaps.

"However, the flaws are not hidden." Lu Jianfei said qualitatively, and then asked in a very polite tone: "Xiao Zhao, are you willing to believe us and put this technology in our research institute to achieve sample manufacturing?" ”

Lu Jianfei's words actually contain another layer of meaning, and they are also kindly reminding Zhao Yuemin.

China's first Patent Law was only implemented in 1985, due to a lack of patent regulations and awareness. Zhao Yuemin submitted the design drawings through himself, and if the institute swallowed it into his own research results, Zhao Yuemin, as a single weak individual, really suffered a dumb loss.

"Yes, of course I do." Zhao Yuemin said without hesitation.

"Great." Lu Jianfei didn't expect the other party to agree so quickly.

Zhao Yuemin naturally believed in Lu Jianfei, and when he was on the train, after watching Lu Jianfei, who was already in poor health, insist on giving up his seat to a pregnant woman, he was convinced of his character.

The two parties reached an agreement that the Institute of Mechanical Technology would improve the drawings and complete the testing of production processes such as mold making, steel body processing, and pressureless sintering, as well as samples.

For this reason, Lu Jianfei pushed off other projects in the drilling technology laboratory, freed up all equipment and scientific researchers, and took full responsibility for this project.

When cooperation is reached, everyone is happy.

In the evening, Lu Jianfei took Zhao Yuemin and Hu Lin to the Xuesiyuan Hotel of the Petroleum Institute for dinner.

Due to the existence of the Institute of Mechanical Technology, the hotel level of the entire Petroleum Institute has been raised by several levels. The hotel is decorated luxuriously, just like the Diaoyutai State Guesthouse.

Lu Jianfei raised the wine glass full of red wine and said with a smile: "I haven't touched wine for a long time, and this time I will make an exception." ”

Both sides push the cups and change the lamps. Lu Jianfei told Zhao Yuemin about the origin of the institute.

At that time, 58 years ago, the Ministry of Petroleum Industry had not yet been established. The Ministry of Fuel Industry and the General Administration of Petroleum Administration jointly made a decision to select some experts from Moss Petroleum Institute and professors from North China Institute of Technology and Southwest Institute of Technology to form an expert team.

Lu Jianfei shook his wine glass and recalled: "At that time, there were two academicians of the Chinese Academy of Sciences in the institute. One is me, and the other is Zhao Chunda......"

"Zhao Chunda?" Zhao Yuemin and Hu Lin glanced at each other, their eyes were extremely surprised.

"How...... Do you know this winner of the Order of Two Bombs and One Star? Lu Jianfei asked.

Two Bombs and One Star Medal......

Zhao Yuemin used to think that his father was a technical adviser to the Ministry of Petroleum, but he didn't expect that his father was not only an academician of the Chinese Academy of Sciences, but also a winner of the Two Bombs and One Star Medal.

So much glory has been accumulated, but now he is living in seclusion in the Jiangbei Oilfield, doing a job as a boiler.

Zhao Yuemin felt sorry for his father, but he remembered his promise not to reveal his identity and location to outsiders. He was torn between a rock and a hard place, and finally had the cheekiness to make up a lie.

"I'm curious......," Zhao Yuemin snorted, "This expert is also surnamed Zhao, and he may be a family with me." ”

Hu Lin quietly grimaced at him......