Zhao Yuemin thought to himself, at this time, his father has gone home, and there is no one else in his office, who will it be?

He immediately walked out of the conference room, walked lightly to the door, and looked inside.

I saw that the office was pitch black, with only a faint flashlight.

A familiar figure appeared in front of Zhao Yuemin's eyes.

Zhao Yuemin's face changed slightly, and he was extremely surprised. How did he end up in his father's office?

That figure, as if it was the first time to do this kind of thing, looked very frightened, and after touching around Zhao Chunda's office, he didn't find anything, but quickly retreated.

Zhao Yuemin, who was hiding behind the wall, did not startle the snake. After watching the figure leave, he returned to the conference room alone and pondered.

Why did this Japanese technician appear in his father's office?

What exactly does he want?

China and Japan have been studying together on the basis of cooperation and mutual trust, so why do they do such a sneaky thing?

This night, Zhao Yuemin thought about a lot of things.

The next day, in the office, Zhao Chunda and his son continued to discuss the production of diamond composite drill bits.

"Yuemin, there is no doubt that if this diamond composite bit can be launched, it will soon start a wave of reform of drill bits. Lu Jianfei and I both believe that this is a major technological breakthrough. Therefore, this sixth grinding wheel plant is very important to us. You also heard from the Chen Bureau of the Provincial Energy Bureau that the No. 6 grinding wheel factory is the only state-owned factory in our province that produces synthetic diamond. The contact with the 6th grinding wheel plant was important. Zhao Chunda elaborated.

"Dad, over there in the Ministry of Petroleum, do you want me to call Vice Minister Wu to find a way?" Zhao Yuemin asked.

Zhao Chunda took off his glasses and looked at Zhao Yuemin with a strange smile: "Little rabbit, is your breath quite big?" Vice Minister Wu is your second uncle? ”

"It's not the second uncle, it's like the second uncle." Zhao Yuemin laughed.

"I think it's better to forget it. There are also few state-owned synthetic diamond factories in the country. Where they are located, there are also our oilfield brother units, and everyone has a demand for raw materials. Let's not make trouble for our superiors, or focus on the sixth grinding wheel factory, after all, it is in our province. This sixth grinding wheel plant is crucial for our generation of upgraded drill bits, and we need its synthetic diamond products, as well as its mature powder metallurgy pressure sintering technology. Zhao Chunda said.

The diamond composite disc drill bit adopts an integrated drill bit, and the whole drill bit has no moving parts, and the structure is relatively simple. In this production process, diamonds and other metal powders are filled into the mold, and then pressurized and heated from a single axis, and then formed and sintered to make metal materials and composite materials. There are similarities with the production of ceramics.

Powder metallurgy technology has a series of advantages such as significant energy saving, material saving, excellent performance, high product precision and good stability, which is very suitable for mass production. In addition, some materials and complex parts that cannot be prepared by traditional casting methods and machining methods can also be manufactured by powder metallurgy technology, so they have attracted the attention of the industry.

"Yuemin, I've thought about it. Our machine shop currently lacks this process. If we need to introduce an automatic powder molding machine and a vacuum sintering furnace for this purpose, and we need to train workers, it will be a huge amount of money in terms of time and money, and it will not be efficient. Instead, we work directly with the Sixth Grinding Wheel Factory and let them do the powder metallurgy processing for us to complete this process. ”

"Dad, leave this matter to me." Zhao Yuemin nodded, "I'll go for a run." ”

"Well, regarding the further improvement process of diamond composite sheets, I still need to consult with the Japanese team of our research institute."

"Dad......" Zhao Yuemin wanted to speak and stopped, "This technology, it's best not to involve the Japanese side......

"Why?"

Seeing his father's question, Zhao Yuemin told Zhao Chunda about the scene that happened in the office last night.

"How so?" Zhao Chunda took off his glasses and rubbed his eyebrows with both hands, looking a little tired.

"Okay, Yuemin, don't make a noise about this matter, let's wait and see what happens. As for the research on diamond composite sheets, let's keep it a secret from the Japanese side for the time being. ”

"Okay."

After the meeting with Zhao Chunda, Zhao Yuemin immediately got busy. He first went to the Provincial Energy Bureau, asked Chen Bureau to write a letter of introduction, and then took a car to the No. 6 Grinding Wheel Factory to make contacts.

In 1970, in accordance with the three-line construction policy of "mountain, scattered and cave" of the national military industrial enterprise, the sixth grinding wheel factory was built in a valley with a maximum width of 75 meters and a narrowest 25 meters at the junction of Jiangbei Province and Anhui Province. The traffic is very inconvenient.

Zhao Yuemin first took a car, then changed to a tractor, and finally changed to an ox cart, and then arrived at the site of the No. 6 Grinding Wheel Factory.

Looking at the high cliffs on both sides of the factory, there is quite a bit of a one-man and a taste. It is reasonable that the military factory is located here, the planes cannot be found, and the tanks cannot enter.

It's just a cliff, although the scenery is beautiful, but this factory looks extremely dilapidated, and there is no momentum of military enterprises at all.

Zhao Yuemin walked to the communication room with one foot deep and one foot shallow, and saw two old men in military coats playing chess.

"Uncle, I'll look for your factory director Deng Qinghui."

"Wait a minute, wait until I'm done with this."

The two people in the communication room were in a fierce battle, and they seemed to ignore Zhao Yuemin completely.

The wind in the valley is somewhat strong. Zhao Yuemin saw that the two ignored him, so he simply walked directly into the communication room to avoid the wind.

He took a chair and sat down. I saw that the iron kettle in the communication room was steaming, and there was a stove next to it, and a small bottle of rice wine was scalding in the pot through the water.

Zhao Yuemin thought to himself that it was cold outside, but these two old men were at ease. Playing chess and warming rice wine, life is very comfortable.

"Uncle, are you playing chess here, doesn't the factory director care?"

"What does the factory director do? There's no business in the factory......," replied an old man with a red rosacea, without raising his head.

"That's because your factory manager has a problem with management." Zhao Yuemin said casually, "It stands to reason that it is the responsibility of the factory director that such a large military factory cannot make a profit." ”

The old man with a rosacea nose glanced at him: "The country's military product task is declining year by year, and the factory director has no way to ......."

"That's not what you say. At present, the central government has reformed and delegated power to enterprises, and has also advocated flexible management policies. There's always something to think of...... If the factory director, like you, plays chess here, it will be over. ”

Zhao Yuemin originally wanted to make a joke. Unexpectedly, the rosacea old man glared at him: "I am Deng Qinghui, the factory director." What is the matter with you, comrade? ”