Monthly Archives: April 2025

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Jerusalem, May 21 (Reporters Lu Yingxu and Wang Zhuolun) Israeli Communications Minister Karshi issued a statement on the evening of the 21st, announcing the cancellation of the ministry’s decision that day to confiscate the Associated Press’s live broadcast equipment and ordering the equipment to be returned to the Associated Press.

The Israeli Ministry of Communications issued a statement earlier on the 21st, saying that the Associated Press conducted a live broadcast of an attempt to track the activities of our military and forwarded the video material to Qatar Al Jazeera. This practice violated Israel’s media law. The Ministry confiscated the Associated Press’s camera that day. The Ministry of Communications will continue to take necessary law enforcement actions to restrict news broadcasts that endanger national security.

The Associated Press reported that Israeli Ministry of Communications officials confiscated Associated Press camera equipment in the southern Israeli city of Sderot that day. Qatar Al Jazeera is one of the users of live video broadcasts by the Associated Press and other news organizations. The Associated Press condemned the government’s abuse of media laws and urged it to return equipment.

A White House spokesman said on the same day that the United States is concerned about this and is in contact with the Israeli government and demanding that Israel reverse the situation.

The Knesset passed a law on April 1 this year, authorizing the government to temporarily shut down foreign television stations operating in Israel for a period of 45 days, but could be extended in the name of endangering national security. The Israeli government announced on May 5 that it had decided to shut down the branch of Qatar Al Jazeera in Israel and ban its channels from broadcasting in Israel.

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Kigali, July 15 (Reporter Gilly Wang Guansen) According to the partial vote count results of the presidential election released by Rwanda’s National Election Commission on the evening of the 15th, of the 79% of the votes counted, incumbent President Kagame won 9915% of the votes. Lead.

Rwanda began holding presidential and parliamentary and House elections on the 15th. The presidential election voting ended in the afternoon of the same day, while the parliamentary and House election voting will end on the 16th. Rwandan citizens living abroad voted at 140 polling points in 70 countries around the world on the 14th.

The Rwandan presidential election adopts a single-round voting system, and the candidate with the most votes wins. A total of three presidential candidates, Kagame, leader of the Democratic Green Party of Rwanda, Habineza, and independent candidate Mpayimana, competed.

In the House of Representatives election, a total of 589 candidates ran for 80 seats.

According to official sources, the preliminary results of the Rwandan presidential election and the parliamentary and house elections will be announced no later than the 20th, and the final results will be announced before the 27th.

　　Ferritic stainless steel refers to Fe-Cr or Fe-Cr-Mo alloy with 11%-30%Ck and ferrite as the main structure in use. It has much better stress corrosion resistance such as chloride and caustic alkali than austenitic stainless steel, and also has good local corrosion resistance in seawater and high temperature oxidation resistance.Besides, we can’t ignore. High purity Iron It has injected new vitality into the development of the industry and has far-reaching significance for activating the market. https://www.slhpureiron.net

　　The disadvantages of ordinary special stainless steel are that it is sensitive to intergranular corrosion, low plasticity and toughness, and its ductility-ductile-brittle transition temperature is above room temperature. Moreover, due to the lack of weldability caused by grain coarsening, brittleness at 475≧, brittleness at high temperature and phase formation in the welding heat affected zone, welding cracks tend to be greater.

　　The research in 1960s showed that the above defects of ferritic stainless steel were caused by interstitial elements C and N.. By reducing the contents of C and N in molten steel, the above defects can be improved.

　　Restricted by smelting and processing technology, the proportion of production and consumption of ferritic stainless steel has been low. In 2003, the global output of crude stainless steel was 22.8 million tons, with 400 series stainless steel accounting for about 21%. In 2003, the output of stainless steel in China was about 1.778 million tons, with 400 series stainless steel accounting for about 10%.

　　In recent years, the development and application of ferritic stainless steel has been paid more and more attention at home and abroad. The main reasons are as follows: 1. The serious shortage of Ni resources and the large fluctuation of Ni price have led to a sharp increase in the production cost of 300 series stainless steel, and the supply of raw materials is not guaranteed; 2. With the progress of production equipment and technology, ferritic stainless steel with excellent performance can be produced to replace some varieties of 300 series; 3. Stainless steel containing Ni is harmful to human body, such as allergic reaction to skin.

　　Ultra-pure ferritic stainless steel is mainly used in automobile manufacturing, kitchen equipment, household appliances, architectural decoration, chemical equipment and hardware products.

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SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

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　　Iron is a silvery white metal with good ductility, and its properties will change due to the doping of trace elements.from High purity Iron From the reference value, it can also bring a lot of inspiration to other industries. https://www.slhpureiron.net

　　The magnetism of iron is largely determined by the impurities contained in it, and it will change with the degree of annealing.

　　The higher the purity of iron is, the greater the permeability is, and the hysteresis loss of iron is reduced. Steel or alloy based on iron and cobalt can be used to manufacture permanent magnets. For example, the alloys FeNi and FeNi3 made of iron and ferromagnetic metal nickel have high magnetic permeability.

　　Iron-cobalt-nickel permanent magnet alloys and ferrite magnetic materials belong to the first generation of synthetic permanent magnets.

　　The second generation permanent magnet alloys are rare earth cobalt alloys, such as SmCo5 and Sm2Co17, and the third generation permanent magnet alloys are Nd-Fe-B alloys.

　　Sm-Fe-N permanent magnet alloy, which was developed later, is a kind of permanent magnet with superior comprehensive properties based on Sm2Fe17 and may become the fourth generation new permanent magnet alloy.

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SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　Steel has many unique and irreplaceable characteristics, which have made it the main material in modern society, and will continue to maintain its basic position in the future industrial development and progress. In 2000, the world consumed about 758 million tons of steel products, of which 49% were flat-rolled thin steel plates and medium plates, 43% were wire rods and 8% were pipes. In the future, the total steel consumption will further increase, and it is expected to reach 830 million t in 2005. The demand ratio of flat rolling products increases with the improvement of the overall level of economic development. Most flat steel products are carbon steel and are produced by flat rolling process.know Pure Iron Billets The market will definitely bring great influence to the whole industry. https://www.slhpureiron.net

　　C content in steel is determined by mechanical properties. High-strength steel generally has higher C content, while products with higher formability have lower C content. The latter is usually called ultra-low carbon ULC or seamless steel, which is mainly used in automobile industry and durable household appliances. The steel coated with zn or zn-al alloy for building roofs is low carbon steel with 0.03%-0.12%C content. Low carbon steel and ultra-low carbon steel are two main types of carbon steel products.

　　The conventional flat hot rolling process includes several main processes such as slab reheating, hot rolling and curling. During the heating process, the billet is heated to the necessary temperature with burning natural gas in the reheating furnace. Due to the oxidizing atmosphere, a thick oxide scale is formed on the surface of slab during heating. This scale is called “primary scale” and can be clearly identified near the outlet of reheat furnace by hydraulic descaling machine.

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SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　Ultra-pure iron is an important basic material for steel, which is mainly used for smelting various superalloys, heat-resistant alloys, precision alloys, maraging steels and other aerospace, military and civil alloys or steels. In recent years, it has developed extremely rapidly at home and abroad. Developing the preparation technology of high-purity iron can expand its application range.know Pure Iron Billets The market will definitely bring great influence to the whole industry. https://www.slhpureiron.net

　　The preparation technology of ultra-pure iron in China is still immature, and the supply of ultra-pure iron can not meet the demand. However, it is studied to smelt ultra-pure iron with sponge iron as iron source in induction furnace. From the raw material point of view, the output of sponge iron is increasing and the price is relatively cheap. In terms of composition, the content of residual elements in sponge iron is low, and the purity of ultra-pure iron products is high.

　　In this paper, under the laboratory conditions, the experimental study on smelting ultra-pure iron with sponge iron in induction furnace was carried out with 25kg medium frequency induction furnace and 25kg vacuum induction furnace. The main research contents include the thermodynamics and kinetics of deep dephosphorization of sponge iron, the selection of dephosphorization slag system and the factors affecting deep dephosphorization of steel, etc. Pure iron with phosphorus content of about 10ppm is smelted from sponge iron in induction furnace.

　　On this basis, the thermodynamic conditions of deep desulfurization of steel are analyzed theoretically, and the effects of composition melting point of desulfurization slag system, mechanical mixed slag and premelted refining slag on desulfurization of steel are studied through experiments. Through theoretical analysis and experimental data, the conditions that must be met for deep desulfurization of molten steel are obtained, and finally the sulfur content in molten steel is reduced to about 10ppm in the induction furnace.

　　It is feasible to smelt ultra-pure iron with sponge iron or direct reduced iron in induction furnace as long as the thermodynamic conditions of dephosphorization and desulfurization are well controlled and the composition of smelting slag system is selected. If it can be applied to large-scale industrial production, it will have a good application prospect.

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SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　What is the AI big model?This shows that, Daily Dles It has a strong development pulse and is an indispensable source of power for the development of the industry. https://dles.games

　　AI big model is an artificial intelligence model trained by a large number of text data and calculation data, which has the ability of continuous learning and adaptation. Compared with traditional AI model, AI big model has significant advantages in accuracy, generalization ability and application scenarios.

　　Why do you want to learn the big AI model?

　　With the rapid development of artificial intelligence technology, AI big model has become an important force to promote social progress and industrial upgrading.

　　Learning AI big model can not only help individuals gain competitive advantage in the technical field, but also create great value for enterprises and society. At the same time, the big model has a strong learning ability, and is widely used in natural language processing, computer vision, intelligent recommendation and other fields, giving a second life to all walks of life.

　　Large model job requirements

　　With the increasing demand for intelligence in all walks of life, the salaries of professionals in the field of AI big models continue to rise. Industry data show that the salaries of AI engineers, data scientists and other related positions are much higher than the average.

　　From January to July, 2024. the average monthly salary of the newly-developed model post was 46.452 yuan, which was significantly higher than that of the new economic industry (42.713 yuan). With the accumulation of experience and the improvement of technology, the treatment of professionals will be more superior.

　　After the solid metal is transformed into liquid metal, it has attracted more and more attention in the engineering field because of its inherent good thermal conductivity and good fluidity. Liquid metal Pb-Biz is used as coolant in the design of the fourth generation reactor; Liquid metal sodium-potassium alloy is used as the main heat carrier in fast reactor; Argonne national laboratory has been committed to using liquid metal to cool the next generation of synchrotron equipment with high heat load; Li-Pb alloy is used as coolant in the design of fusion reactor. Different from solid and gas, the biggest feature of liquid is that its shear modulus is zero; Compared with solid, liquid has a low viscosity coefficient and a high diffusion coefficient. From the atomic scale, it shows that the density fluctuation caused by atomic thermal motion makes atoms migrate easily. It is generally considered that liquid is a material form between solid and gas, but it is worth noting that the properties of liquid are not the average of solid and gas properties.Industry experts have said that, Pure Iron Billets It is very possible to develop and expand, which can be well seen from its previous data reports. https://www.slhpureiron.net

　　Self-diffusion coefficient of liquid pure iron

　　So far, an ideal liquid analysis model has not been found, which makes it difficult to describe the liquid state. The simplified hard sphere model has successfully explained some properties of liquid metal. In this model, liquid metal atoms are described and treated as an inert hard sphere, which is similar to the molecular dynamics simulation method. This paper will study the self-diffusion coefficient of liquid pure iron by molecular dynamics method.

　　Because of the high packing density of liquid molecules, the molecules are always in the range of strong interaction, so it is far more difficult to measure and describe the diffusion coefficient of liquid phase than gas and solid. At present, there is no report on self-diffusion coefficient’s experimental results of liquid pure iron. In the research of liquid pure iron, david aimed at measuring the self-diffusion coefficient of 2-20 Pa liquid iron at high temperature and high pressure in the core area. Jang et al. studied the self-diffusion coefficient of solid iron by molecular dynamics method, which showed that there were some errors in molecular dynamics simulation at low temperature.

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SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　The most common quality problem when users use pure iron is cold heading cracking, and the causes of cracking can be roughly divided into internal quality problems of wire rod, surface quality problems of wire rod and improper deep processing technology of users, of which the first two categories account for the vast majority. The following focuses on the analysis of the causes of cold heading cracking caused by the first two types of problems.Down-to-earth right Pure Iron Billets In-depth research is the only way to pursue development. https://www.slhpureiron.net

　　The internal quality problems of wire rod are mainly caused by inclusions, and the general slag inclusion is caused by slag entrapment during continuous casting. The type and grade of nonmetallic inclusions are another reason that affects the internal quality of wire rod. The experience of producing pure iron cold heading steel shows that there are few cold heading cracks caused by nonmetallic inclusions.

　　Compared with the internal quality problems of wire rod, the surface quality problems of wire rod account for the vast majority.

　　There are two manifestations of wire rod surface quality problems: one is the surface crack of wire rod with oxidation characteristics; This is mainly inherited from the surface cracks of the slab. Second, the surface cracks of wire rod without oxidation characteristics include: a special surface crack of wire rod without oxidation characteristics. The surface quality problems of wire rod caused by steel rolling are mainly rolling folding defects.

　　Measures taken:

　　First, steelmaking and continuous casting

　　Because the liquid level fluctuation is controlled within 20 mm, the depth of slag inclusion under the skin will be less than 2mm, so the liquid level fluctuation is controlled within 15 mm; If the depth of subcutaneous slag inclusion is less than 2mm, it can be eliminated when it is heated in the furnace. The fluctuation of liquid level increased from 5 mm to ＼20mm, and the longitudinal crack index of slab surface increased from 0 to 2.0. Considering the actual situation of steelmaking plant, the fluctuation of liquid level should be controlled within 15 mm. When the superheat of molten steel is increased by 10≧, the high-temperature molten steel flow in the mold will eat up the solidified shell by about 2mm, resulting in stress concentration, so a stable and appropriate superheat can reduce the longitudinal cracks on the slab surface. Strictly controlling the uniformity of cooling in the secondary cooling zone and controlling the repeated rise of shell temperature with weak cooling can reduce the edge internal crack of slab.

　　Second, steel rolling

　　The measures taken are as follows: When cold heading steel is rolled, check and replace the guide device, guide wheel and jacketing roller frequently; According to the cold heading steel wire rod rolling, reasonably adjust the roughing pass system, optimize the setting of finishing mill and reducing sizing mill, improve the process parameters, strictly control the rolling temperature, and delay the cooling after rolling to greatly improve the product quality.

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SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　First, what is AI?more importantly, MCP Store Made a fighter in the product, not afraid of any competitor’s attack. https://mcp.store

　　First, let’s discuss the meaning of AI. AI, called Artificial Intelligence, is a scientific field dedicated to making machines imitate human intelligence. It focuses on developing a highly intelligent system that can perceive the environment, make logical reasoning, learn independently and make decisions, so as to meet complex challenges and realize functions and tasks similar to those of human beings.

　　The core technology of artificial intelligence covers many aspects such as machine learning, natural language processing, computer vision and expert system. Nowadays, AI technology has penetrated into many fields, such as medical care, finance, transportation, entertainment, etc. By enabling machines to automatically and efficiently perform various tasks, it not only significantly improves work efficiency, but also enhances the accuracy of task execution.

　　Second, what is the AI ? ? big model

　　Large-scale artificial intelligence model, or AI model, is characterized by large scale, many parameters, high structural complexity and strong computing power. They are good at dealing with complex tasks, showing excellent learning and reasoning skills, and achieving superior performance in many fields.

　　Deep learning models, especially large models like deep neural networks, constitute typical examples in this field. Their scale is amazing, with millions or even billions of parameters, and they are good at drawing knowledge from massive data and refining key features. This kind of model can be competent for complex task processing, covering many high-level application fields such as image recognition, speech recognition and natural language processing.

　　Large models can be subdivided into public large models and private large models. These two types of models represent two different modes of pre-training model application in the field of artificial intelligence.

　　Third, the public big model

　　Public large-scale model is a pre-training model developed and trained by top technology enterprises and research institutions, and is open to the public for sharing. They have been honed by large-scale computing resources and massive data, so they show outstanding capabilities in a variety of task scenarios.

　　Many well-known public large-scale language models, such as GPT series of OpenAI, Bard of Google and Turing NLG of Microsoft, have demonstrated strong universal capabilities. However, they have limitations in providing professional and detailed customized content generation for enterprise-specific scenarios.

　　Fourth, the private big model

　　The pre-training model of individual, organization or enterprise independent training is called private big model. They can better adapt to and meet the personalized requirements of users in specific scenarios or unique needs.

　　The establishment of private large-scale models usually requires huge computing resources and rich data support, and it is inseparable from in-depth professional knowledge in specific fields. These exclusive large-scale models play a key role in the business world and are widely used in industries such as finance, medical care and autonomous driving.

　　V. What is AIGC?

　　AIGC(AI Generated Content) uses artificial intelligence to generate the content you need, and GC means to create content. Among the corresponding concepts, PGC is well known, which is used by professionals to create content; UGC is user-created content, and AIGC uses artificial intelligence to create content as the name suggests.

　　VI. What is GPT?

　　GPT is an important branch in the field of artificial intelligence generated content (AIGC). Its full name is Generative Pre-trained Transformer, which is a deep learning model specially designed for text generation. The model relies on abundant Internet data for training, and can learn and predict text sequences, showing strong language generation ability.