my scientific age

Chapter 248 Oxygen lance nozzle!

Five weeks before No.1937 in 20, there are still two days left.

When Princeton on the other side of the ocean was busy arranging the publication of the latest article, here, the editorial department of Tsinghua Journal also received three heavyweight papers jointly signed and submitted by Zhuang Qianding and Yu Hua.

"Qingyue, this is a submission by Professor Zhuang of the Department of Mechanical Engineering. You can review it here and submit it if there is no problem. Just in time for the latest issue of the journal on July [-]."

"Yes, Director." In the editorial office, Liao Yaquan, who had already joined as a preliminary editor, wore a skirt that complemented the female figure and painted light makeup, exuding a gentle temperament of Jiangnan water town.

As a top student with experience studying abroad at Kyoto University, it is more than enough for Liao Yaquan to serve as the preliminary editor of the Tsinghua editorial department. After all, editors of this academic nature are basically volunteers and free labor.

During the initial interview, Liao Yaquan did not encounter obstacles and easily entered the editorial office of Tsinghua Journal.

Now, she is not called Liao Yaquan, her surname is Ye, and her name is Qingyue, which means that the bright moon in the sky is cold and cold, which is quite artistic.

Ye Qingyue, no, Liao Yaquan poured a cup of warm boiled water, resisted the hunger in his stomach, opened the three submitted papers on the table, and reviewed them according to the standards.

Since joining the editorial department of Tsinghua University, Liao Yaquan has been most uncomfortable with Tsinghua's meals, which are seriously lacking in protein and fat. Every day, it is either multi-grain steamed buns or buns, and occasionally some strange steamed buns. The quality of life has plummeted.

Really, Liao Yaquan would never eat this kind of food that low-level people eat if it wasn't for the mission.

The problem is that it has been ten days since he joined the company, and Liao Yaquan has basically made no progress. There is no way to start with Zhang San's mailing address and related information.

The editorial department of Tsinghua Journal has an absurdly high level of confidentiality for scholar Zhang San's information.

According to Liao Yaquan's guess, Tsinghua professors such as Wen Yiduo, Chen Yinke and Ye Qisun must know the information about Zhang San, but it is not realistic to know Zhang San's whereabouts from these people.

The day after tomorrow is July, what should I do?
July is the deadline given by His Excellency Toi Yuan. If there is no breakthrough in the search for Zhang San before that, there is only one consequence waiting for her, and she will be sent to the freshman salon.

Thinking of this, Liao Yaquan frowned slightly, and the information about the freshman salon subconsciously appeared in his mind. His heart trembled slightly, he took a deep breath, forced himself to remain calm, and completed the current work of disguising his identity.

"Zhuang Qianding, Yu Hua, a method of deep hole machining based on a lathe." Liao Yaquan turned his eyes to the first mechanical engineering paper, and after reviewing the author's information and title, his eyebrows wrinkled slightly.

Lathe based deep hole machining?

How can this be?

Liao Yaquan was very surprised and surprised. Although she was a special agent and didn't know much about science and technology, she did receive a complete higher education and had basic literacy and knowledge in technology.

Lathe is a kind of machining equipment, which is generally used for turning in China. How can deep hole machining be performed?
Most importantly, it was created by the Chinese.

Can the Chinese create this method?

The answer is obvious.

Liao Yaquan felt that his cognition had suffered a lot, and with a trace of contempt and curiosity in his eyes, he looked at the text of the article and read it carefully.

1 minutes.

2 minutes.

5 minutes.

10 minutes.

In this short period of time, Liao Yaquan almost forgot his identity, immersed himself in the field of mechanical engineering, and felt the crystallization of knowledge that embodies the wisdom of Professors Yu Hua and Zhuang Qianding.

As his eyes moved to the last paragraph of the last page of the thesis, after reading it, Liao Yaquan sat in the chair without saying a word, the contempt and disdain in his heart vanished, replaced by shock and amazement.

From the point of view of mechanical engineering alone, the deep hole machining method based on lathe in the article is completely feasible.

Not only is it feasible, but the processing efficiency and accuracy are not low. Although Liao Yaquan does not know the efficiency and level of deep hole processing of barrels in the domestic manufacturing industry, she faintly feels that this method is only weaker than the domestic first-line.

A pioneering concept that takes the lathe to the fullest, not just turning.

Liao Yaquan was amazed that this academic achievement jointly signed by Professor Zhuang Qianding and Yu Hua has extremely high military application value.

Deep hole processing in this era is generally known as barrel drilling.

From the point of view of the preliminary editor's review, the structure of this article is standard and the content quality is extremely high.

"Damn, why was this method of enhancing the potential of China's military industry born at this juncture." Liao Yaquan came back to his senses, looked at the paper in his hand, and cursed in his heart.

This method of deep hole processing using lathes can allow a considerable number of lathe equipment to carry out deep hole processing, effectively increasing the output of drilling barrels, and the effect is not small.

What should I do myself?
Destroy the paper, or review and submit it?

Liao Yaquan's breath was slightly short of breath. This paper is good for China and bad for the motherland. She can't tolerate this paper being published.

At this moment, the editorial director in charge of the preliminary review came again and asked Liao Yaquan: "Qingyue, how is the review? Professor Zhuang is an excellent mechanical engineering expert in our school. His paper is very important and cannot be delayed. "

Special treatment is available everywhere. For Tsinghua Journal, due to the generally low quality and unqualified level of externally submitted articles, special attention is paid to the internal submission of the school.

Manuscripts of professors at the department head level like Zhuang Qianding are paid more attention by the person in charge of the preliminary review department.

Hearing the words from the editor-in-chief of the preliminary review, Liao Yaquan's face suddenly stiffened, and he wanted to speak, but he didn't know what to say.

Professor Zhuang Qianding wrote this thesis in a very standard manner, with basically no nitpicks or mistakes.

"Forget it, you give me the article, there are still 2 days, so there is no delay." The editorial director of the preliminary review saw Liao Yaquan's appearance, and immediately knew that there was nothing to review. He shook his head, a little disappointed, and immediately took it from the table. Walk three papers.

He originally planned to train this top student editor who studied abroad, but unfortunately, his performance today is not very good.

"..." Liao Yaquan stared blankly at all this, the disappointment in the eyes of the editorial director of the preliminary review pierced her heart like the tip of a knife.

Most importantly, the other party also took away three papers!

The first paper can increase the production of drilled barrels, so what about the second and third?

"I can't go on like this anymore, I have to do something." Liao Yaquan clenched his right hand tightly, holding back the emotions in his heart, thinking calmly, and making a decision.

……

On June [-]th, the last day of June, today is when National Tsinghua University holds final exams. There is a serious atmosphere in Tsinghua University. All students are preparing for final exams.

Except for Yu Hua, of course.

As the only recommended student in Tsinghua University who reported to school in advance, Yu Hua enjoyed the privilege of being exempted from taking the final exam. As for the reason, it was very simple. Yu Hua had only been studying at the school for 30 days, and it was not fair for him to take the final exam.

In the blink of an eye, from June [-] to now, one month has passed.

Tsinghua Park Nuclear Physics Laboratory, second floor office.

As the assistant of Professor Zhao Zhongyao, Yu Hua enjoys the treatment of an independent office. The area is not large, about nine square meters, which is better than independence and freedom.

Since taking this offer from the Nuclear Physics Laboratory, although Yu Hua has not moved out of the dormitory, he basically lives in the laboratory. Now he just wants to say one thing - really fragrant.

Independent and quiet private environment, minimal workload, very sufficient spare time, take a little time to go to class every day, and all other time is free to use.

Really, this kind of treatment is not too cool for Yu Hua.

Thanks to the objective environment of the nuclear physics laboratory, without being disturbed by others, Yu Hua has no distractions. The preliminary research on oxygen lance technology has advanced by leaps and bounds, and the theoretical design from the perspective of mechanical engineering is about to be completed.

From the perspective of metallurgical engineering, as the core equipment of the oxygen top-blowing converter steelmaking process, the oxygen lance plays a leading role in this converter steelmaking process, injecting high-pressure and high-purity oxygen into the metal molten pool of the converter through supersonic speed. square, catalyzing internal smelting reactions and rates.

The oxygen top-blown converter steelmaking process is an order of magnitude more efficient than open hearth steelmaking because of oxygen.

From the perspective of mechanical engineering, the oxygen lance consists of three parts: the nozzle, the gun body and the gun tail.

The nozzle is the most important core of the oxygen lance. The quality of the nozzle determines the final performance of the oxygen lance, which in turn affects the smelting effect and blowing time, and ultimately affects the quality and output of the steel. This is the core difficulty of the entire oxygen lance design.

There are two main problems Yu Hua is facing now, one is the design of the nozzle, and the other is the material of the nozzle.

As an oxygen lance nozzle, it must meet the most basic conditions of use - withstand the transmission and pressure of supersonic airflow, improve oxygen utilization, have a reasonable impact area, increase the speed of slag removal on the molten pool surface, and have little damage to the converter lining , increase the thermal efficiency of the furnace.

These are professional terms, and the summary in one sentence is that they can spray and shoot, and live well and heat-resistant.

In addition, it must have a long service life, at least not damaged after a few days of use.

This is a design requirement, and the problem of the nozzle material is easy to solve, either industrial-grade copper or industrial-grade sterling silver.

Silver has the highest thermal conductivity, but it is expensive, and copper has the second highest thermal conductivity, which is cheap and affordable.

From the perspective of economic cost, Yu Hua chose the former.

Using sterling silver to make sprinklers, Yu Hua has not lost his money to this extent.

(End of this chapter)