Lin Gao Qiming

Chapter 1313 Silicon Steel Work
"That's what my project turned out to be."

At the project results report meeting of the Ministry of Science and Technology, Ge Xinxin reported all her experimental results with a glass slide projector in front of several veterans of the Ministry of Science and Technology and the Industry Department.This included her taking atomic spectra of several samples.

"The direct benefit is that it can be used for the qualitative analysis of most metals and metalloid elements and the semi-quantitative analysis of trace and semi-trace major metal elements. In addition, all equipment and consumables are based on what this space-time Lingao can provide except for reference reagents. The finished product, at most, only needs further purification. It can greatly save the life of the brought equipment and reduce costs at the same time."

Although Dr. Zhong was sitting on the chair in the middle, he didn't quite understand the whole experiment process.So he kept absolute silence and let the people at the industrial entrance talk about the problem first-it seemed that a few people were already eager to try.

Seemingly realizing what questions the other party might ask, Ge Xinxin continued:
"Of course there are problems. At present, the reproducibility between batches of glass substrates that we can manufacture is insufficient, and the sensitivity must be calibrated separately each time, and cannot be stored for a long time, and must be done as needed. And semi-quantitative analysis relies on Due to the acquisition of high-purity standard samples, the standard reagents brought cannot last for a long time, and the standard reagents of spectral purity level must be tossed by ourselves. This is quite difficult for our still weak organic chemical industry. It is not a very ideal choice to choose sodium ferrocyanide, but it can barely be used as a substitute. Therefore we can only do trace, semi-trace and semi-quantitative analysis at the moment, and we cannot do trace analysis and quantitative analysis. And for Some elements cannot be used. Generally speaking, it only provides a method and possibility, and it is difficult to provide large-scale support for the industry in terms of specific application, and further improvement of equipment is needed—"

"Let's not talk about this first," Lin Hanlong from the Optical Factory asked, "What I'm concerned about is what to do with your developer and fixer chemicals? According to your experiment report, they are all in stock. Is there any sustainability? "

"In my experiment, I used four chemicals: rhodol sulfate, hydroquinone, borax, and sodium sulfite to configure the developer solution, sodium thiosulfate for the fixer solution, and acetic acid for flushing. These drugs They are all in the list of self-produced drugs of the Ministry of Chemical Industry. It should be said that there is no problem with continuous supply.”

She explained that based on the papers on chemical production she saw in the journal "Nature and Science" and the product catalog provided by the chemical industry: among these chemical agents, sodium sulfite, sodium thiosulfate and acetic acid are currently available in chemical plants. The sources of commonly used chemicals such as rhodol sulfate and hydroquinone are more troublesome, and the coal chemical industry can only produce crude products from the fractionation of coal tar.

"...With our current capabilities, it is a bit difficult to refine. But it is not a big problem for developing and fixing. Of course, this will inevitably lead to interference such as clouding, but it can only be accepted."

"I feel that the success of this development is not very meaningful to us..." Ji Wusheng said, "There are still some missing links that are difficult to make up. And it is not convenient to use the photoelectric instrument." The person in charge of the steel industry habitually picked up the towel Wiped his forehead—in fact, there was not a single drop of sweat on it, "I think it is necessary to set up a laboratory in our steel plant. It is still a bit troublesome to send someone to deliver samples by train—especially the melted samples."

"If this technology is successfully developed, spectral testing can be spread to every factory that needs to determine the elemental composition." Ge Xinxin saw that her results did not arouse great repercussions, and she couldn't help but feel "a bright pearl cast in the dark", "Let's talk about the future Steel and non-ferrous metal enterprises are bound to bloom everywhere, and it is impossible for the planning institute to equip every factory with a spectrometer."

"That's true." Ji Wusheng said, "I don't have any opinions, as long as it works. Now the industry wants us to produce various alloys, and it will be much better to have this foundation."

"I have no objection either." Ji Tuisi said, "It's just that Ge Xinxin's actions have put a lot of burden on our chemical industry."

"Steel is the backbone of modern industry, and the chemical industry is blood and flesh." Ge Xinxin smiled, "Nature is the most important thing."

This flattery is just right.Ge Xinxin saw some smiles on the faces of several people, and immediately returned to the topic while the iron was hot.

"The next improvement plan is to replace the Bunsen burner with a hydrogen-oxygen welder. The temperature of the Bunsen burner is low, and the gas contains more impurities, which are easy to interfere with the spectrum-of course, the most ideal is the arc method. After all, the hydrogen-oxygen welder As an excitation source, the flame itself has certain spectral characteristics, and the temperature is not high enough."

"The equipment for the arc method needs to be gathered together. I can see three, five, four, five, and I don't know if it will work." Zhan Wuya said.

"Where there is hope, there is motivation." Ge Xinxin said, "I have another idea, please consider it."

She proposed to set up a special chemical reagent workshop.Specialized in providing chemical reagents, medicines and various consumables for laboratories.At present, several laboratories are doing chemical analysis, and many medicines and reagents have begun to use the products manufactured by this space-time chemical factory, but these products generally have problems of insufficient concentration and excessive impurities.Therefore, each laboratory has to re-purify the chemical reagents before use, which involves a lot of manpower and material resources.

"...Now we have to do a lot of basic drug preparation work, even distilled water. It takes too much time and energy. And when there are more laboratories in the future, some new laboratories may not be able to carry out drug production. Purification. There should also be a certain amount of reserves for the developer and fixer this time. Therefore, I suggest concentrating the equipment, increasing the scale, and having a veteran preside over the special preparation of these products."

"This can be." Ji Tuisi originally had similar thoughts, but he had too many things to manage, and it was too late to ask, "But there is no suitable elder for a while..."

"If you don't mind my self-recommendation, I am willing to preside over this work." Ge Xinxin said without hesitation.

"Oh?" Ji Tuisi was a little overwhelmed, this is not a good job, it is tiring and quite dangerous. "Well, since you're willing to do it, I don't think it's ok—but this matter still needs to be approved by the Planning Institute."

After the meeting, Ji Wusheng took the commuter train back to his office in the Mayao Iron and Steel Complex.It is located in the office area of ​​the steel complex, standing alone in the middle of a circular red brick square.In front of the small building stands a cast iron blast furnace model.

As usual, the staff of the Iron and Steel Consortium were running around in the square, wearing the uniform black uniforms of the steel factory - this is a special color work uniform only enjoyed by the Iron and Steel Consortium.Color-coded identification strips on arms to mark department affiliation, name and number strips sewn on chest.

Ji Wusheng strode into the office and asked the secretary on duty in the "Jiji Office" about the current production situation.

"According to the report from the production scheduling room an hour ago, everything is normal now." Secretary Hui reported.

"Okay." Ji Wusheng walked into his office.His office is on the first floor. Unlike the offices of other veterans, there is no floor on the ground, just a simple terrazzo floor.The floor was always messy, and the walls were always black with stains, despite the secretary's constant sweeping.The technicians and workers in the workshop are often called by him to the office to discuss problems and report on their work.He himself often had to go to the workshop, to the blast furnace, and inevitably trampled ash and dust all over the ground.

On the coat rack of the desk are the overalls and hard hat he used when he left the workshop, and there is also a pair of protective glasses for steel workers in the pocket of the overalls.

Ji Wusheng sat down on his rattan chair, and he vaguely understood the intention of attending this meeting when the Planning Institute informed him today: Everyone is working hard to tackle key problems and pave the way for bridge building in materials science. As the person in charge of a steel company People, at any rate, they have to come up with some achievements.

Indeed, element composition analysis is of great significance to the smelting of silicon steel and other special steels. However, silicon steel in the world began to be produced in the era without spectrometers, relying on nothing more than chemical analysis.Spectral analysis is certainly more accurate than simple chemical analysis, but it is far from enough.Smelting silicon steel is a very complicated matter. Although at the last industry department meeting, he gave a one-month deadline for the trial of silicon steel-he can indeed refine silicon steel, and there is no difficulty in raw materials, but Ji Wusheng was not sure what kind of silicon steel he could produce.

In China in the old time and space, it was not until 1954 that the first furnace of hot-rolled silicon steel was produced, which shows the technical difficulty of this thing.According to the position on the technology tree, this is a technology point that was only lit at the end of the 19th century and the beginning of the 20th century.It is very difficult for Lingao Industry to light up in advance.

Ji Wusheng and several veterans who have some research on steelmaking have conducted a special study on this issue: it is impossible to make silicon steel by arc method. As for Ge Xinxin's proposal to make silicon first and then steel, he thinks it is not inevitable: after all Many veterans in the industry are not sure whether copper can be used as a reducing agent to refine silicon, and new processes and new products will inevitably bring about the need to add more equipment.

The result of the research is to directly smelt ferrosilicon first, then smelt silicon steel, and then hot-roll silicon steel.There is definitely no way to pay attention to performance, but at least it is better than direct low-carbon steel.

For the refining of ferrosilicon, some people mentioned that the crucible method can be used to smelt ferrosilicon, but several people discussed that it may be difficult for the crucible to reach a sufficient temperature, and the amount of the crucible is too small, which is fine for refining a small amount of special steel. It is too small for ferrosilicon which is in high demand.

(End of this chapter)