Comrades from the Iron and Steel Research Institute, Director Qin's Office, and Jianggang Organization Department negotiated with Director Qin.

The comrades of the Organization Department said: "Director Qin, after careful assessment and careful consideration, the stationmaster of your quality supervision station has finally screened two suitable candidates, one is Lu Youlai, a senior engineer in your experimental technology room, and the other is Wei Daxun, the section chief of the quality inspection department of the first rolling mill. Comrade Lu Youlai, you are very familiar with it, this is Comrade Wei Daxun's information, you review and examine. ”

The stationmaster of the quality supervision station of the steel research institute is a deputy director-level cadre, and after the retirement of the old stationmaster, the deputy director concurrently serves as the stationmaster.

The deputy director and stationmaster are temporary, and a new stationmaster must be promoted in the office.

Under normal circumstances, a cadre at the deputy department level is promoted by the three bigwigs in the institute--- that is, the director, secretary, and chief engineer, who are nominated and appointed after the organization's inspection and approval.

In this cadre recruitment, the Organization Department of Jianggang Iron and Steel gave the Institute two recruitment indicators, one at the deputy department level and one at the department level.

After confirming with Director Qin in advance the specific departments to which the cadres at the deputy department level and the department level belong, the Organization Department of Jianggang was proposed to be the head of the quality supervision station and the head of the technical information section.

After reviewing Comrade Wei Daxun's information, Director Qin said: "Comrade Lu Youlai is an expert in experimental technology, and he strives for perfection in technology, but he lacks practical experience in managing a department. Comrade Wei Daxun is a technical background, and in the first rolling mill quality inspection section chief of the post of six years of work, he not only understands technology, but also understands management, and understands quality, I propose to appoint Comrade Wei Daxun as the new head of our quality supervision station. ”

Director Qin did not recommend Lu You, an old comrade in the institute, but liked Comrade Wei Daxun in the early rolling mill, which seemed unexpected, but it was also expected by the comrades of the organization department.

"Okay, we respect Director Qin's opinion. Next is the determination of the new chief of the technical information section, we have selected two candidates, both of whom are comrades of the Iron and Steel Research Institute, they are Liu Yahui and Zhao Qingshan, so what is your opinion Director Qin?"

"I know these two comrades well, first talk about Comrade Liu Yahui, he is conscientious in his work, but the party spirit and principles do not seem to be so firm, this comrade has a problem, he likes to point fingers behind the backs of other comrades, this habit is very bad, I don't worry about giving him the position of the head of a section. ”

On the other hand, Comrade Zhao Qingshan has no such problem, and Zhao Qingshan is not lost to Liu Yahui in technology, he has been in Jianggang for less than a year, and has won many commendations, including the first prize of the Ministry of Metallurgy. What is debatable is Zhao Qingshan's age and qualifications, he is too young and has zero experience in managing a department. ”

"Of course, your organization department reported Zhao Qingshan's name to me, and I must have seriously considered the above debatable points. If I can only choose one of the two, then I choose Zhao Qingshan, and I will give this excellent young man a chance. I believe that your organization department will also conduct cadre training for Zhao Qingshan to help him become familiar with and master the various businesses of section-level cadres as soon as possible. ”

"Okay, understood, thank you, Director Qin. ”

"Comrade, don't be in a hurry to leave, let's continue to talk about the personnel appointments and dismissals of other comrades of the Steel Research Institute......"

The cadre recruitment led by the organization department has two cadre indicators in the Iron and Steel Research Institute, while the regular cadre appointment and dismissal of the Iron and Steel Research Institute involves more than two cadre positions.

Zhao Qingshan, who was following up 945 steel in the hot rolling mill, did not know the conversation between Director Qin and the comrades of the Organization Department.

The 945 billet was sent to the No. 1 heating furnace, which was recently renovated to determine the CCT curve by the thermal analysis method invented by Zhao Qingshan.

"Silicon does not change the shape of the curve, but it can greatly improve the stability of austenite below 500 degrees. You see, manganese lowers the Ar1 temperature of the steel, which reduces the degree of supercooling during the transition, thus increasing the hardenability of the steel. Molybdenum has a strong effect on inhibiting the transformation of pearlite, and it can be said to be the strongest among all alloying elements. The role of boron in HSLA is significant, and it would be better if the boron content was two to three times higher......"

Liang Minfang, who has mastered the essentials of this thermal analysis method, is full of praise, saying that the test method invented by Xiao Zhao has improved efficiency and accuracy.

"Xiao Zhao, has the experimental report of the thermal analysis method been written?" asked Liang Minfang.

Zhao Qingshan said: "After this furnace of 945 steel is completed, the sample size of the hot rolling mill is enough, and the experimental report of the thermal analysis method in the hot rolling mill can be given." The primary rolling mill rolls open-hearth steel from one steelmaking, and I still want to go to the primary rolling mill to test ten furnaces of steel. ”

"Well, Xiao Zhao, you hurry up and finish the phased experiment report, and then submit it to the institute, if the method you invented is stolen by others, it will be troublesome. ”

"Except for me, only Director Ye and the three of you engineers know the core content of this thermal analysis method, who stole it?

"I can't tell, Xiao Zhao!"

After the 945 steel is heated, it is sent to the roughing and finishing mills for rolling, and new problems appear.

The finished rolled 945 steel strip produced a bilateral wave shape, which was scrapped and scrapped, which is scrap steel.

"The first furnace has bubbles, and the second furnace has bilateral waves, how can this be done!"

The start of 945 steel has been unfavorable, and the engineers who have been squatting in the workshop all day long can't help but be irritable.

Bao Zegang, who is also in charge of technical transformation at the hot rolling mill, said: "The bubbles are human error, and this problem has been solved. In fact, the bilateral wave shape is also an old problem, don't worry, our technical restructuring will solve the related problems of the finishing mill as soon as possible. ”

The daily output of the hot rolling mill is 13,000 tons, and the current back-up rolls are imitation NBCM large crown rolls, which are double taper roll types.

This equipment structure has a drawback, it is easy to produce bilateral wave waste, the average scrap rate is 0.05%, and the steel scrapped due to bilateral wave is 650 tons per day.

For products with a rolling thickness of ≤30mm, the scrap rate of bilateral waves is 1%.

There are two supply states of 945 steel, the non-quenched and tempered state ≤ 16mm, and the quenched and tempered state is 17~32mm.

That is to say, the probability of bilateral wave waste in the finishing rolling process of 945 steel in the hot rolling mill is very high, and there is one bilateral wave waste product for every 100 rolls.

This furnace 945 steel is 16mm non-quenched and tempered, and 1% of the bilateral wave scrap rate was hit by it.

A 1% scrap rate isn't terrible, isn't there still 99 passes?

There are many reasons why steel is scrapped, not just bubbles and bilateral waves.

If the probability of each defect is 1%, then don't make steel.

Even if the average scrap rate of 0.05% is taken from the bilateral wave, more than 200,000 tons of steel will be scrapped every year.

How big is the displacement of a destroyer?

Even if the scrap rate is reduced by 0.01%, it is also very meaningful for a super-large steel mill with an annual output scale of 4 million tons+.

Liu Yahui asked: "Director Bao, how should our finishing mill be technically transformed, and to what extent?"

Bao Zegang explained: "The technical transformation of the finishing mill is very complex, and all aspects need to be considered. Our technical restructuring team, together with colleagues from the hot rolling mill and the technical transformation department, worked overtime to discuss the technical transformation plan, and strive to complete the technical transformation within this year, so as to effectively reduce the rolling scrap rate. ”