In the fourth quarter, all walks of life are catching up with production and goals.

The purchasing directors of the electronics factory, instrument factory, electromechanical factory, and transformer factory outside begged Jianggang to supply high-quality oriented silicon steel every day.

Many of these factories are subordinate enterprises of the Ministry of Light Industry and the Ministry of Mechanical and Electrical Engineering, and their slips are presented to the competent authorities, which are then transmitted to the Ministry of Metallurgy.

The Ministry of Metallurgy is also very hard, Jianggang has its own arrangements, and steel production has its own rules, don't send strips to our department, the atmosphere has been ruined by you, hum!

That is to say, but as a huge and long industrial chain of steel suppliers, Jianggang of course wants to supply more and create more benefits.

Internal and external pressure was exerted on Ma Hanxing, Zhao Qingshan, and Zhou Tienan.

Ma Hanxing gave a death order: "I'm with you, I eat and live in the laboratory, and if I can't get it, I'm not allowed to go home!"

"This ...... Oh. Zhao Qingshan and Zhou Tienan obeyed the order.

"Horseman, phone, your lover called. A colleague came in the lab and called out to the horseman to answer the phone.

"Hit the fight, hit the ghost! Women just have a lot of things!" Ma Hanxing scolded and left the laboratory, he said to come back immediately, and you two continue to do experiments.

Ma Hanxing came to the office, picked up the microphone, and said gently: "Hey, Yingzi, what's the matter?"

Her lover's request was simple and important, she said that she would go to Fruit Lake to socialize with the comrades of the city trade union, and that she could not pick up the child from the kindergarten on time, so Ma Hanxing would get off work early to pick up the child.

Ma Hanxing looked embarrassed: "I'm quite busy at work, so I may not be able to go so early." ”

Lover: "Busy, busy, busy, your work is important, my work doesn't matter, right?"

Ma Hanxing covered the microphone and looked around: "You are important, you are important, you are busy, you are busy, I will get off work early to pick up Xixi." ”

On the way back to the laboratory, Ma Hanxing felt guilty. He has a middle-aged daughter, and now he is a single seedling, and his daughter is of course the pearl of his palm.

To be fair, the girl is so big, almost all of them are taken care of by her lover, and the number of times he has sent the girl to kindergarten is also only a handful. The lover asked him to pick up the girl today, also out of helplessness.

Other parents have taken the little girl away, leaving the girl alone in the miserable left-behind kindergarten, tearfully looking forward to her father and other mothers, which will inevitably produce indelible shadows and traumas on the girl's young heart, and even affect her life and destroy her personality!

The more Ma Hanxing thought about it, the more unpleasant it became, his mind was full of "picking up girls", "little padded jackets", "great fatherly love", and "father and daughter celebrating tonight".

"Xiao Zhao, Xiao Zhou, my family has an emergency, my girl's business, I'll go first. Ma Hanxing briefly talked about the situation and apologized.

Zhao Qingshan understood the hardships of the middle-aged man very well: "The matter of flowers in the kindergarten, that's a big deal! Ma Gong, go and pick up the girl, don't let the child wait too long." ”

Zhou Tienan is also a bodhisattva: "Yes, yes, the laboratory will be handed over to the two of us, and you can go quickly." ”

Not long after Ma Hanxing left, Zhou Tienan also apologized: "My mother's fiftieth birthday today, the family invited a guest for her birthday, and I want to go back early." ”

Zhao Qingshan nodded and said: "Pepsi filial piety comes first, the old lady is the biggest, you hurry up and go home to honor the old lady." ”

Within 30 minutes after Ma Hanxing issued the death order that "no results are allowed to go home", Zhao Qingshan was the only one left in the laboratory.

It's not that Ma and Erren can't do their work, on the contrary, they are very dedicated scientific and technological workers.

But who isn't in a hurry?

Zhao Qingshan locked the door of the laboratory, took a deep breath, and started!

Magnesium oxide, 78.0%.

chromium trioxide, 6.0%.

Silicon dioxide, 5.5%.

Aluminium oxide, 4.0%.

Ferric oxide, 1.7%.

Zirconium dioxide, 1.1%.

Antimony pentasulfide, 0.6%.

Zinc oxide, in trace amounts.

……

The flame is continuously heated, and the chemicals in the reactor fuse, repuls, fuse again, and a chemical reaction occurs.

The powdered substance emits an inconspicuous off-white luster, which is added with water and stirred to form a liquid coating with good fluidity and suspension.

The dirtier it looked, the more Zhao Qingshan's eyes shone brightly, he was not afraid of the blocking of 99 materials, only the magnesium oxide-chromium trioxide surrendered.

Zhao Qingshan carefully poured the liquid paint into the spraying device, and the small slab of oriented silicon steel used in the test was sent to the oven at 100 degrees, 200 degrees, and 300 degrees.

Gush!

After the liquid paint is fully atomized, the goddess scatters the flowers, it is no longer dirty, it is beautiful and dignified, and it flies freely!

Boom！

Don't panic, it's not an explosion, it's just a thermodynamic sound.

A 0.8mm protective coating is formed on the surface of the test silicon steel slab, and the coating dries quickly with the heat of the slab.

The temperature continues to rise, 500 degrees, 800 degrees, 1000 degrees, 1200 degrees.

With 2FeO· The iron oxide scale with SiO2 as the main component is formed by the liquid phase, and some components in the liquid phase and the coating penetrate and diffuse each other, forming a dense reaction layer and diffusion layer through physical and chemical reactions.

A large number of fine crystals are precipitated in the glass phase, which effectively blocks the oxidation of the billet by the atmosphere, improves the elasticity of the coating, and buffers the stress caused by the different expansion coefficients between the silicon steel slab and the coating.

The EDAX analysis of the coating showed that:

Magnesium oxide: 22.2% microcrystalline, 25.5% solid solution, 20.8% matrix, 94.7% chromium oxide of chlorite.

Chromium trioxide: omitted.

Silica: slightly.

Aluminium oxide, ferric oxide, zirconium dioxide...... Outline.

The burn-out rate under laboratory conditions was reduced by 91%!

"I'm more than half successful!"

Zhao Qingshan's fists shook excitedly, he was worried that the theoretical scheme in his memory would not be realized in the laboratory in 1986.

Now it seems that it can be achieved with seriousness, boldness and care.

Recording experimental data and cleaning the laboratory, Zhao Qingshan picked his arms, so tired.

This "more than half of the successful" experiment lasted more than a dozen hours, from yesterday afternoon to early this morning.

"Sure enough, it's good to eat and live in the laboratory, it's good to be young, it's good to be single. ”

Young has a lot of energy, and being single has many conveniences, but young Zhao Qingshan always thinks about his wife. Wife, wife, you grow up quickly.

"Hey, why is the door locked?"

Ma Hanxing's voice came from outside the laboratory door.

"Zhao Qingshan came so early?"

Zhou Tienan was also outside the door.

Zhao Qingshan opened the door, his tired expression was full of the joy of success: "I did it all night, and finally made the theoretically optimal formula, come in, look at the data." ”

Zhou Tienan's squinting eyes expanded to the limit: "The data on EDAX, structural reflection, and thermophysical properties are all very good!

"The burn-off rate under laboratory conditions has been reduced by 91%, and industrial production is expected to exceed 50%!" Ma Hanxing was extremely excited, and he suddenly realized after reading the ingredients of the formula: "Antimony pentasulfide is a very important raw material, and the only non-oxide actually plays such a role!"

The experimental data is placed here, and in the research of magnesium oxide-chromium trioxide silicon steel protective coatings, Jianggang laboratory surpasses the published research results of other laboratories at home and abroad.

It's also a coincidence, yesterday Ma Hanxing picked up the child from work early, Zhou Tienan went home 20 minutes later to honor his mother, and only Zhao Qingshan stayed in the laboratory all night, and he actually made the experimental results that everyone dreamed of!