Ning'an Special Steel Branch. Pen, fun, pavilion www. biquge。 info

The first trial run of bearing steel production is still in full swing.

After going through key processes such as electric furnace remelting, primary and secondary refining, the pure and uniform molten steel soon reached the last process link - continuous casting.

In the general control room, the two senior ministers gradually put away their thoughts of relying on the old and selling the old, and they didn't dare to put on a score in front of Wu Tao.

After all, the ability to successfully control and debug the previous processes has confirmed Wu Tao's professional skills and technical strength. Such talents, no matter where they are placed, are the pillars of talent worthy of serious attention. What's more, people are young, and their future development is even more promising?

At this time, youth is no longer a disadvantage or a disadvantage, but a real advantage.

Suddenly, an emergency was reported in the continuous casting workshop.

"According to the report, the casting billet section exceeded the estimated area, reaching 280×250mm visually, and it is still increasing!"

Minister Liao and Minister Chen stood up suddenly, trembling and chattering.

"I knew it wasn't going to go that way, and now it's going to go wrong, right?"

"Let's just say that this is the case, the casting billet section is not well controlled, and the quality is difficult to control. Segregation problems, control of center porosity, uniformity of carbide, etc., if any index is not well controlled, this batch of bearing steel will be considered waste! ”

Wu Tao knew that these two old qualifications were right, and the pressure of the continuous casting link was not controlled in place, which was indeed a bit surprising. At present, it is too late to modify the parameters, so we can only wait for this batch of continuous casting to be completed, and then modify it before the next batch.

Exhaling a breath of turbidity, Wu Tao felt the pressure increase sharply.

However, the two veterans didn't care how much pressure he was undertaking, and they kept chattering endlessly. In short, now in their eyes, Wu Tao is no longer a young talent who has become a serious young talent, but a daredevil.

Wu Tao finally couldn't help it: "Two ministers, the matter has come to this point, and it is in vain to talk about it." It's better for everyone to save some effort and grasp the remaining process links, and maybe they can recover their losses. ”

Minister Liao said with obvious dissatisfaction: "Recovering the loss? Don't think about it, this batch of large-section casting billets must be scrapped. ”

"I think so." Minister Chen echoed.

Wu Tao opened the control screen of the continuous casting workshop with an expressionless face, thought for a while, and modified several control parameters in a row. This batch of parameters is a temporary adjustment, and it will be changed back when the second batch of continuous casting is made.

Time passed minute by minute, and when the first batch of bearing steel entered the final inspection process, Wu Tao felt as if it had gone through 10,000 years.

Since the cross-section of the first batch of bearing steel is larger than the expected design area, the probability of problems increases dramatically, resulting in an increasingly detailed and complex inspection process and workload.

In the general control room, the two old ministers began to swallow the clouds and sigh anxiously.

Wu Tao still sat in front of the console, and after issuing strict on-site testing standards to the inspection workshop, he began to pay close attention to the continuous casting process of the second batch of bearing steel.

If the first batch goes wrong, it means that it is likely to fail the test. Then this second batch must not have any more problems! Otherwise, this would mean that the first production test run was a complete failure.

Of course, Wu Tao can't accept such a result, and the employees of the whole factory can't accept it either!

The process of waiting for the test results was long and painful, during which the second batch of bearing steel continuous casting went smoothly. This time there was no mistake from the last time, and even the workers in the casting workshop breathed a sigh of relief, and everything looked perfect.

Finally, a female voice from the inspection workshop came from the walkie-talkie.

"General control room, inspection workshop request report."

Wu Tao immediately grabbed the walkie-talkie, and the two old cigarette gun ministers also snuffed out the cigarette butts and came over together.

"I'm the general control room, please speak."

"The first batch of bearing steel, with a cross-sectional size of 300*280mm, has been systematically tested and has excellent quality......

"What, you say it again!" Minister Liao's smoke-smelling mouth yelled straight into the walkie-talkie.

"Repeat, the first batch of bearing steel, cross-sectional size of 300*280mm, after systematic testing, the quality is not only completely passed, but also reached the international excellent level......"

"It can't be!" Minister Chen's eyes were as big as bull's eyes, and Minister Liao looked at each other, without saying a word, rushed out of the general control room and went straight to the inspection workshop.

Wu Tao said to the walkie-talkie: "Keep the testing site, and we'll go over." ”

More than ten minutes later, Wu Tao followed the footsteps of the two ministers and walked into the testing workshop.

The huge casting billet is eye-catching.

Then the hearty voice of Director Xu of the testing workshop came: "What's the matter, Lao Liao, Lao Chen, Wu Tao, you still can't believe me?" Came to inspect the work in person? ”

Director Xu's name is Xu Yan, a middle-aged man with a pair of old-fashioned square-framed glasses, and his whole person is full of old-fashionedness. Coincidentally, in the group company, he is also known for being old-fashioned. Any quality flaws are intolerable to him.

In the face of the old fashion, Minister Liao and Minister Chen did not dare to hold it up, and explained vigorously: "We just haven't seen the high-quality large-section bearing steel, and we just came to see the world." ”

Through the two old ministers, Xu Yan directly greeted Wu Tao and said, "Minister Wu, you let us witness a miracle!" In two days, we thoroughly understood the technical parameters of Nippon Steel's bearing steel process. With a second-rate production line, we can make first-class products. It's amazing, it's amazing. ”

Wu Tao humbly didn't dare to say anything, and changed the topic: "Director Xu, let's take a look at the specific test results." ”

"It's good to have results, not arrogant or impatient, young man." Xu Yan turned to greet Minister Liao and Minister Chen together: "Then come over and take a look at each item." ”

"First of all, this is the oxide content test, and the less oxide content in the bearing steel, of course, the better. At present, the best in the world is Japan's Sanyo Iron and Steel, their oxide content can reach 4~6ppm, that is, the order of one part per million! It's remarkable. But you see, the oxide content of our batch of bearing steel has reached a new low, reaching 0.1~0.2ppm, which is one part per tenmillion! ”

"It's not a little bit of progress, it's a historic improvement!"

Minister Liao and Minister Chen were both stunned.

Director Xu continued: "Let's look at the segregation problem ...... again"

After talking with flying eyebrows, Xu Yan proudly watched as the two ministers Liao and Chen fell into a sluggish state again.

Wu Tao stepped forward and said: "Director Xu, in your opinion, will there be a problem that the second batch of bearing steel is not up to standard?" ”

Xu Yan picked up the old pedantic shelf and said: "According to my many years of experience in bearing steel testing, this possibility is extremely small. Because even the products with large cross-sections have reached high quality; The quality of this second batch of small-section products will only be better. If you don't believe me, you'll find out later. ”