"Nickel reduces the carbon content of the precipitated pearlite in the steel, and drastically reduces the critical transition temperature, and the nickel content in the chemical composition of 945 steel is preliminarily determined to be 1.0%~1.4%. With the increase of manganese content, the pearlite transition region moves to high temperature, and the bainite transition region moves to low temperature, and the manganese content in the chemical composition needs to be further confirmed. ”

Liang Minfang shared the results of her experiment, and Ye Guoli came to the laboratory to study the data and formulate a follow-up plan with the four team members.

"Xiao Zhao has successfully completed the phased task, Liang Gong's completion rate is more than 50%, Zhang Gong, Liu Gong, you two have to work hard. Ye Guoguo said, and said: "Sharpening the knife is not wrong for the woodcutter, and the measurement method of the CCT curve can be improved." ”

The CCT curve is the transition curve of continuous cooling of supercooled austenite, which is an important reference for the formulation of heat treatment process. With the development of experimental technology, CCT curves are widely used in all aspects of steelmaking and rolling.

"At this stage, we mainly use the expansion method to determine the CCT curve, supplemented by the metallographic method. Enough is enough, but the accuracy and efficiency need to be improved. ”

Ye Guoguo talked about his idea, the expansion method can not only measure the steel grade with high austenite stability and slow transformation speed, but also measure the steel grade with low austenite stability and fast transformation speed, especially in the study of welding process and special rolling process, such as austenite deformation heat treatment, controlled rolling, etc., which is very convenient, and is the most mainstream measurement method.

However, the expansion method relies heavily on a variety of rapid measurement and high-sensitivity dilatometers, and the advanced degree of application tools determines the application effect under the premise that the basic theory remains unchanged.

Zhao Qingshan said: "We are now using the dilatometer developed and manufactured by the Harbin Welding Research Institute, which is quite easy to use, and is at the same level as the instruments imported from Europe and Dongying. A new generation of dilatometers will be available in about a year or two, this is the answer of the Harbin Welding Research Institute. ”

Not only in terms of measurement, but also the entire industrial chain and many process links of steelmaking rely on advanced equipment. Without good equipment, it is difficult to realize even the most awesome technical ideas.

This is also why in the 70s, China's foreign exchange reserves were so tight, China still gritted its teeth and invested 600 million US dollars, for Jianggang to buy a "one-meter-seven rolling mill system".

The "one-meter-seven rolling mill system" is worth the money, and the $600 million invested by the state has been recovered by Jianggang and has a surplus.

Last year, Jianggang's profits and taxes were 1.42 billion yuan, of which 1% or 14.2 million yuan was used for scientific and technological research and development this year.

Jianggang's scientific and technological research and development units are not only the steel research institute, but also the Jiangshan Iron and Steel Design Institute, the Mining Research Institute, the technical transformation department and the technical departments of each factory, all of which belong to the scientific and technological research and development units.

The 1987 scientific and technological research and development budget of the Institute of Steel Research Institute was 3.6 million yuan, and if you ask Director Qin whether the budget is more or less, Director Qin will definitely say that it is not much. Doing scientific research burns money, and no matter how much money you give to scientific researchers, they will feel less.

The 945 steel research group does not take the scientific research funds of the Iron and Steel Research Institute, and is directly funded by the company, with sufficient funds.

"The research group has enough money, but the money can't buy a more advanced dilatometer. Ye Guoguo said.

"Under the test conditions of the existing dilatometer, the expansion method is difficult to improve. The metallographic method can determine and discern the microstructure characteristics of the transformation products, which is a major advantage that other physical methods do not have. However, due to the fact that the cooling is continuous, and the cooling rate is sometimes very fast, the determination of the CCT curve by the metallographic method has certain limitations, and the positioning of the metallographic method is an auxiliary method, so it is recommended to maintain the status quo and not make changes. My idea is to add thermal analysis on the basis of the main expansion method and the auxiliary metallographic method. Everybody's busy, so I'll do the thermal analysis. Zhao Qingshan took the initiative to ask Ying, find something to do, you can't be idle.

"Just what I wanted. Ye Guoguo nodded and asked, "After May Day, we will go to the examination room, so before May Day, can Xiao Zhao come up with a preliminary plan?"

"Before April 1st, I tried to use thermal analysis to test a furnace of test steel. ”

"Next year's April 1st?"

"Director Ye, you are really humorous, of course it is April 1st this year. ”

"Zhao Qingshan, you're really funny, it's March 12th today...... Oops, it's Arbor Day today!" Ye Guoguo slapped his thigh, and then said: "Xiao Zhao and I will go to plant trees, and talk while walking, and the three of you will continue to follow up on the experiment." ”

After that, Ye Guoli and Zhao Qingshan left the trial production workshop and went to the steel research institute building.

During the time of solitude, Ye Guoli told Zhao Qingshan: "The progress of Zhangtongqiao is slow, I originally wanted you to take over part of the test tasks of Zhangtongqiao, but after full consideration, I felt that it was inappropriate, so I arranged a new task for you." I agree with you to make some improvements in thermal analysis, or that sentence, just come up with a preliminary plan before May Day. ”

"Okay, okay, obey Director Ye's command. ”

Spring is in full bloom and the weather is sunny.

There is no winter that is insurmountable, and there is not a spring that will not come.

The building of the Steel Research Institute is crowded with people, and some employees of the institute are bathing in the warm sunshine outdoors, enjoying the pleasant spring breeze and feeling the breath of spring.

They shoveled the soil, watered the trees, planted saplings and sowed green hope.

Even if the energy saving and consumption reduction are achieved to the extreme, it will not be able to achieve 0 energy, 0 consumption and 0 emissions.

Iron and steel enterprises will inevitably have a certain impact on the environment when they are in full production.

Jianggang people love to plant trees, a variety of trees, more harvest.

Zhao Qingshan planted an osmanthus tree, and Ye Guoguo and Ma Hanxing planted the same variety.

Three osmanthus trees are lined up to protect the pure land.

"The road to the south of us is full of osmanthus trees, and we look forward to the day when the osmanthus flowers are fragrant, push open the window and embrace the fragrance. Zhao Qingshan wiped a handful of sweat, Jiangcheng in mid-March warmed up, and he was sweating after outdoor labor.

After planting the osmanthus tree, Zhao Qingshan returned to the office of the Steel Research Institute.

There are too many activities in state-owned enterprises, Zhao Qingshan planted trees this afternoon, and was asked to watch educational films.

He didn't watch it alone, all the staff of the second research room entered the video room of the institute and collectively received confidentiality education.

The deputy secretary of the institute said with a serious expression: "Today it is the turn of the second laboratory to watch the educational film, before the video, I want to emphasize that from now on, foreign guests who come to visit our company are not allowed to take pictures and videos in the factory, and domestic personnel are not allowed to take pictures and videos of the production process and equipment in the factory in principle." Our technical personnel have close contacts with domestic and foreign technical personnel, because of the needs of work, we often take domestic and foreign technical personnel to investigate in the production workshop, normal technical exchanges can not be interrupted, but still that sentence, do not give them pictures, video, please keep in mind the above confidentiality provisions. ”

Everyone was in an uproar, and there was a lot of discussion.

"Secretary Qian, why is it so strict all of a sudden?"

"Caught a commercial espionage?"

"A traitor to our company?"