"This is the result of my project. [Read the latest chapter]"
At the project results reporting meeting of the Ministry of Science and Technology, Ge Xinxin used a glass projector to report all her experimental results to several senior officials from the Ministry of Science and Technology and the Ministry of Industry. Among other things, she took atomic spectra of several samples.
"The direct benefit is that it can be used for qualitative analysis of most metals and metalloid elements and semi-quantitative analysis of trace and semi-trace major metal elements. In addition, except for the reference reagents, all equipment and consumables are based on what Space-Time Lingao can provide. The finished product only requires further purification at most. This can bring significant savings in the life of the equipment while reducing costs.”
Although Dr. Zhong was sitting on the chair in the middle, he did not fully understand the entire experimental process. So he maintained absolute silence and let the people in the industrial port talk about the problem first - it seemed that several people were already eager to give it a try.
As if aware of what questions the other party might ask, Ge Xinxin continued:
"Of course there are problems. The glass bottom plates we can currently produce have insufficient reproducibility between batches. The sensitivity must be calibrated separately each time, and cannot be stored for a long time. It must be used as needed. And semi-quantitative analysis relies on Due to the acquisition of high-purity standard samples, the reference reagents brought cannot last for a long time, and we must produce spectrally pure reference reagents ourselves. This is quite difficult for our still weak organic chemical industry. I am now Sodium ferrocyanide is not an ideal choice, but it can be used as a makeshift substitute. Therefore, we can only do trace and semi-trace semi-quantitative analysis at the moment, and cannot perform trace analysis and quantitative analysis. Moreover, for Some elements cannot be used. Roughly speaking, it only provides a method and possibility. It is difficult to provide large-scale support to industry in terms of specific application, and further improvement of equipment is needed."
"Let's not talk about this for now." Lin Hanlong from the optical factory asked, "I am concerned about what to do with the chemicals of your developer and fixer. Looking at your experimental report, they are all used in stock. Is there sustainability? "
"In the experiment, I used four chemicals: methamphetamine sulfate, hydroquinone, borax, and sodium sulfite to prepare the developer. I used sodium thiosulfate in the fixer, and then used acetic acid when rinsing. These chemicals They are all on 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 she read on chemical production in the magazine "Nature and Science" and the product catalog provided by the Chemical Industry Portal: among these chemicals, sodium sulfite, sodium thiosulfate and acetic acid are all currently available in chemical plants. The sources of commonly produced pharmaceuticals, methamphetamine sulfate and hydroquinone, are more troublesome. Coal chemicals are produced from coal tar fractionation and can only produce crude products.
"...With our current capabilities, it is a bit difficult to refine it. But it is not a big problem when used for development and fixation. Of course, this will inevitably lead to interference such as clouds. But we can only accept it."
"I feel that the success of this development is not of great significance to us..." Ji Wusheng said, "There are still some missing links that are difficult to make up. And it is not convenient to use photoelectric instruments." The person in charge of the steel industry habitually picked up a towel Wiping his forehead - there was actually not a drop of sweat on it, "I do think it is necessary to have a laboratory attached to our steel plant. It is still a bit troublesome to send people by train to deliver samples - especially melt samples."
"If this technology is successfully developed, spectral testing can be popularized in every factory that needs to determine elemental composition." Ge Xinxin saw that his results did not arouse a big response. I can't help but feel like a "pearl in the dark", "Besides, steel and non-ferrous metal companies will inevitably flourish in the future, and the Planning Institute will not be able to equip every factory with a spectrometer."
"That's true." Ji Wusheng said, "I don't have any objections, as long as it works. Now the industry requires us to produce various alloys, and it will be much better to have this foundation."
"I don't have any objection either." Ji Tuisi said, "It's just that Ge Xinxin's actions have made the burden on our chemical industry a lot heavier."
"Steel is the backbone of modern industry. The chemical industry is the blood and blood." Ge Xinxin smiled, "Nature is the most important thing."
This flattery is just right. Ge Xinxin saw smiles on several people's faces. Immediately striking while the iron is hot returns to the topic.
"The next improvement plan is to use a hydrogen-oxygen welding machine to replace the Bunsen burner. The temperature of the Bunsen burner is relatively low, and the gas contains more impurities, which easily interferes with the spectrum. Of course, the most ideal method is the arc method. After all, the hydrogen-oxygen welding machine is used. As an excitation source, the flame itself has certain spectral characteristics, and the temperature is not high enough."
"We need to get all the equipment for the arc method. I can see three, five, four, and five, but I don't know if it will work." Zhan Wuya said.
"With hope comes motivation." Ge Xinxin said, "I have another idea, please consider it."
She proposed setting up a specialized chemical reagent workshop. Specializing in providing chemical reagents, medicines and various consumables for laboratories. At present, several laboratories are doing chemical analysis, and many drugs and reagents have begun to use products manufactured by this space-time chemical factory. However, these products generally have problems of insufficient concentration and too many impurities. Therefore, each laboratory has to re-purify the chemical reagents before use, which involves a lot of manpower and material resources.
"... Nowadays, we have to do a lot of basic drug preparation work ourselves, even distilled water has to be prepared by ourselves. It involves too much time and energy. And when there are more laboratories in the future, some new laboratories may not be able to carry out pharmaceutical preparations. Purification. There should also be a certain reserve of developer and fixer this time. So I suggest that the equipment be centralized and scaled up, and that a veteran be responsible for specially preparing these products."
"This is possible." Ji Tuisi originally had a similar idea, 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 take charge of this work." Ge Xinxin said without hesitation.
"Oh?" Ji Tuisi couldn't react. This was not a good job. It was tiring and quite dangerous. "Well, since you are willing to do it, I think it's okay - but this matter still needs approval from the Planning Institute."
After the meeting, Ji Wusheng took the commuter train back to his office at Ma Niao Iron and Steel Complex. It is located in the steel complex office area, standing alone in the middle of a circular red brick square. In front of the small building stands a model of a blast furnace casting iron.
As usual, employees of the Iron and Steel Consortium were running around the square. They were wearing the uniform black uniforms of the steel plant - this is a special color work uniform that is only enjoyed by the Iron and Steel Consortium. Color identification strips are used on the arms to mark the departments to which they belong, and name and number strips are sewn on the chest.
Ji Wusheng strode into the office and asked the secretary on duty in the "Ji Office" about the current production situation.
"According to the report from the production dispatching room in the previous hour, everything is currently normal." Secretary Hui reported.
"Okay." Ji Wusheng walked into his office. His office is on the first floor. Unlike the offices of other senators, there is no floor on the ground, just a simple terrazzo floor. Although the secretary cleans frequently, the floor is always dirty and there are always black stains on the walls. Technicians and workers in the workshop would often be called to his office to discuss problems and report on their work. He himself often has to go to the workshop and to the blast furnace, and inevitably tramples ashes and dust all over the floor.
On the coat rack on his desk hung the work clothes and safety helmet he used when he went to the workshop. In the pocket of the work clothes was a pair of protective glasses used by steel workers.
Ji Wusheng sat down on his wicker chair. Today, the Planning Institute informed him of the intention of attending this meeting. He vaguely understood: Now everyone is working hard to tackle key problems and pave the way for building bridges in materials science. As the responsible person of the steel company, Ji Wusheng sat down on his wicker chair. People, at least they have to show some achievements.
It is true that elemental composition analysis is of great significance to the smelting of special steels such as silicon steel. However, silicon steel in this world was produced in the era before spectrometers, and it relied on nothing more than chemical analysis. Spectral analysis is certainly more accurate than simple chemical analysis, but this alone is not enough. Making silicon steel is a very complicated matter. Although at the last industrial department meeting, he gave a one-month deadline for the trial of silicon steel - he can indeed make silicon steel, and there are no difficulties in the raw materials, but Ji Wusheng was not sure what kind of silicon steel he could produce.
In the old China, it was not until 1954 that the first batch of hot-rolled silicon steel was produced, which shows the technical difficulty of this thing. According to its position on the technology tree, this is a technological point that was only lit up at the end of the 19th century or 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 conducted a special study on this issue: It is impossible to make silicon steel by arc method. As for Ge Xinxin's proposal of making silicon first and then steel, he feels that 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 problem of adding more equipment.
The result of the research is still to directly refine ferrosilicon first, then silicon steel, and then hot-roll silicon steel. There's definitely no way to stress it in terms of performance, but at least it's better than using low carbon steel directly.
For the refining of ferrosilicon, some people mentioned that the crucible method can be used to refining ferrosilicon. However, several people discussed that it may be difficult for the crucible to reach a sufficient temperature, and the volume of the crucible is too small. It is okay for refining a small amount of special steel. It is too small for ferrosilicon which is in high demand. (To be continued...)
