Monthly Archives: March 2025

　　The preparation of nano-materials has always been a research hotspot and a research difficulty in the field of nano-technology. Although a variety of preparation methods of nano-materials have been developed, and great progress has been made in their preparation technology, due to the complex preparation process, high cost, small material size, internal holes and pollution, it is difficult to obtain integral metal materials with nano-particle size so far.In combination with these conditions, Pure Iron Billets It can still let us see good development and bring fresh vitality to the whole market. https://www.slhpureiron.net

　　Therefore, how to prepare nano-materials with fewer defects by simpler and lower-cost means has become the pursuit goal in this field. In recent years, surface mechanical abrasion treatment (SMAT) has become a new method for preparing nano-materials. The nanocrystalline samples obtained by this method have a grain size within 100nm in a certain depth of the surface layer, and have a gradient structure of gradual transition between nano-,sub-micron and deformed grain layers, and are pollution-free and void-free.

　　Nanomaterials prepared by SMAT method have many potential application values because of the above characteristics, and have been applied in diffusion welding, surface alloying and nitriding. Self-nanocrystallization of various metals and alloys has been successfully achieved by SMAT method. Ultrasonic shot peening (USSP) is widely used in the preparation of nanomaterials by SMAT method, while Highenergyshotpeening,HESP (HESP) is seldom used.

　　Although some people have realized the surface self-nanocrystallization of pure iron by USSP, there is no report on the surface self-nanocrystallization of pure iron by HESP method. A severely plastic deformation layer with a certain thickness was obtained on the surface of industrial pure iron by HESP method.

　　By analyzing and characterizing the structure and properties of this severely plastic deformation layer, it was confirmed that a nanocrystalline layer with a certain thickness was obtained on the surface of industrial pure iron, and the surface of industrial pure iron was self-nanocrystallized.

WWW.SLHPUREIRON.COM

SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　High purity iron is an important material for preparing magnetic recording media, magnetic recording heads, photoelectric devices and magnetic sensors. The new environmentally friendly semiconductor material B-FeSi2 requires higher purity of iron.In order to achieve the goal, Armco Iron Turn cocoon into butterfly, constantly polish product quality, improve business ability, and finally have a place in the market. https://www.slhpureiron.net

　　High purity iron also has many unique properties, such as insoluble in hydrochloric acid and sulfuric acid, but soluble in nitric acid; It is difficult to cut high-purity iron ingots with traditional saw blades. High purity Fe-Cr alloy ingot is a structural-functional integrated material with incredible plasticity, strength, corrosion resistance, low expansion coefficient and high thermal conductivity.

　　Because iron itself is non-toxic, rich in resources and low in price, and iron silicide can be used to manufacture light-emitting elements in the infrared field, scientists are studying and developing high-purity iron as an optical semiconductor material.

　　In view of the important application and potential application value of high-purity iron, the preparation and research of high-purity iron has become a hot spot in the research of high-purity metals.

　　In the middle and late 1990s, research on the preparation technology of high-purity iron was widely carried out in the world, including Japan, France, Germany and the United States. Since 1994, seven international conferences on high purity metals (UHPM) have been held.

　　The research activities of high-purity iron in Japan have also been valued and funded by a large number of enterprises, research institutes and government agencies, and many important achievements have been made. They have successfully extracted iron with a purity of 6N. At present, the preparation of high-purity iron is still in the laboratory stage, and how to industrialize it is a direction that needs to be worked hard in the future.

WWW.SLHPUREIRON.COM

SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　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.In some cases, Cathode Flat The advantages will become more and more obvious, and it will be able to develop indomitable after market tests. 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.

WWW.SLHPUREIRON.COM

SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　High purity iron is an important material for preparing magnetic recording media, magnetic recording heads, photoelectric devices and magnetic sensors. The new environmentally friendly semiconductor material B-FeSi2 requires higher purity of iron.Mentioned in the article Pure Iron Billets Born with strong vitality, you can turn a cocoon into a butterfly and become the best yourself after wind and rain. https://www.slhpureiron.net

　　High purity iron also has many unique properties, such as insoluble in hydrochloric acid and sulfuric acid, but soluble in nitric acid; It is difficult to cut high-purity iron ingots with traditional saw blades. High purity Fe-Cr alloy ingot is a structural-functional integrated material with incredible plasticity, strength, corrosion resistance, low expansion coefficient and high thermal conductivity.

　　Because iron itself is non-toxic, rich in resources and low in price, and iron silicide can be used to manufacture light-emitting elements in the infrared field, scientists are studying and developing high-purity iron as an optical semiconductor material.

　　In view of the important application and potential application value of high-purity iron, the preparation and research of high-purity iron has become a hot spot in the research of high-purity metals.

　　In the middle and late 1990s, research on the preparation technology of high-purity iron was widely carried out in the world, including Japan, France, Germany and the United States. Since 1994, seven international conferences on high purity metals (UHPM) have been held.

　　The research activities of high-purity iron in Japan have also been valued and funded by a large number of enterprises, research institutes and government agencies, and many important achievements have been made. They have successfully extracted iron with a purity of 6N. At present, the preparation of high-purity iron is still in the laboratory stage, and how to industrialize it is a direction that needs to be worked hard in the future.

WWW.SLHPUREIRON.COM

SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　The preparation of nano-materials has always been a research hotspot and a research difficulty in the field of nano-technology. Although a variety of preparation methods of nano-materials have been developed, and great progress has been made in their preparation technology, due to the complex preparation process, high cost, small material size, internal holes and pollution, it is difficult to obtain integral metal materials with nano-particle size so far.I think Pure Iron Billets It will definitely become a leader in the industry and look forward to the high-end products. https://www.slhpureiron.net

　　Therefore, how to prepare nano-materials with fewer defects by simpler and lower-cost means has become the pursuit goal in this field. In recent years, surface mechanical abrasion treatment (SMAT) has become a new method for preparing nano-materials. The nanocrystalline samples obtained by this method have a grain size within 100nm in a certain depth of the surface layer, and have a gradient structure of gradual transition between nano-,sub-micron and deformed grain layers, and are pollution-free and void-free.

　　Nanomaterials prepared by SMAT method have many potential application values because of the above characteristics, and have been applied in diffusion welding, surface alloying and nitriding. Self-nanocrystallization of various metals and alloys has been successfully achieved by SMAT method. Ultrasonic shot peening (USSP) is widely used in the preparation of nanomaterials by SMAT method, while Highenergyshotpeening,HESP (HESP) is seldom used.

　　Although some people have realized the surface self-nanocrystallization of pure iron by USSP, there is no report on the surface self-nanocrystallization of pure iron by HESP method. A severely plastic deformation layer with a certain thickness was obtained on the surface of industrial pure iron by HESP method.

　　By analyzing and characterizing the structure and properties of this severely plastic deformation layer, it was confirmed that a nanocrystalline layer with a certain thickness was obtained on the surface of industrial pure iron, and the surface of industrial pure iron was self-nanocrystallized.

WWW.SLHPUREIRON.COM

SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　Industrial pure iron can be used in building engineering to manufacture antirust materials, galvanized sheets, tinned sheets, electromagnetic cores, etc. Some industrial pure iron also contains copper (0.25% ~ 0.30%) to increase corrosion resistance. Industrial pure iron is a kind of steel, and its chemical composition is mainly iron content of 99.50%-99.90%, carbon content below 0.04%, and the less other elements, the better.know Cathode Flat Our growth has to go through many hardships, but entrepreneurs are never afraid and boldly move forward. https://www.slhpureiron.net

　　Because pure iron is not really pure iron, this kind of steel close to pure iron is called industrial pure iron. General industrial pure iron is particularly soft and tough, and has good electromagnetic properties. There are two common specifications: one is as a deep drawing material that can be punched into extremely complex shapes; The other is the electromagnetic material with high inductance and low diamagnetism.

　　Industrial pure iron

　　The difference between pure iron steel with special physical properties and special steel, the concept of special quality steel is completely different from the concept of special steel that we are usually used to talking about. Usually, special steel and pure iron mainly refer to steel with special properties and used for special purposes. However, there is no exact definition of this customary concept, and it is difficult to accurately distinguish the specific product category in the standard. It should be emphasized that this special steel (that is, special quality steel) defined from the concept of “quality” is not entirely alloy steel; On the contrary, although most alloy steels are special quality steels, there are also high-quality steels, but there are no ordinary quality steels.

　　Industrial pure iron is a kind of steel, its chemical composition is mainly iron, the content is 99.50%-99.90%, the carbon content is below 0.04%, and the less other elements, the better. Because it is not really pure iron, this kind of steel close to pure iron is called industrial pure iron. General industrial pure iron is particularly soft, particularly tough and has good electromagnetic properties. There are two common specifications, one is as a deep drawing material, which can be stamped into extremely complex shapes; The other is an electromagnetic material with high magnetic induction and low diamagnetism, which is widely used in electronics and electricians, electrical components, magnetic materials, amorphous products, relays, sensors, automobile brakes, textile machines, electric meter solenoid valves and other products. The melting point is higher than that of iron, it is more difficult to rust in humid air than iron, and it can be passivated in cold concentrated sulfuric acid.

WWW.SLHPUREIRON.COM

SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　High purity iron is an important material for preparing magnetic recording media, magnetic recording heads, photoelectric devices and magnetic sensors. The new environmentally friendly semiconductor material B-FeSi2 requires higher purity of iron.For these reasons, I think High purity Iron The situation is still optimistic, and the market is still in a blue ocean stage. https://www.slhpureiron.net

　　High purity iron also has many unique properties, such as insoluble in hydrochloric acid and sulfuric acid, but soluble in nitric acid; It is difficult to cut high-purity iron ingots with traditional saw blades. High purity Fe-Cr alloy ingot is a structural-functional integrated material with incredible plasticity, strength, corrosion resistance, low expansion coefficient and high thermal conductivity.

　　Because iron itself is non-toxic, rich in resources and low in price, and iron silicide can be used to manufacture light-emitting elements in the infrared field, scientists are studying and developing high-purity iron as an optical semiconductor material.

　　In view of the important application and potential application value of high-purity iron, the preparation and research of high-purity iron has become a hot spot in the research of high-purity metals.

　　In the middle and late 1990s, research on the preparation technology of high-purity iron was widely carried out in the world, including Japan, France, Germany and the United States. Since 1994, seven international conferences on high purity metals (UHPM) have been held.

　　The research activities of high-purity iron in Japan have also been valued and funded by a large number of enterprises, research institutes and government agencies, and many important achievements have been made. They have successfully extracted iron with a purity of 6N. At present, the preparation of high-purity iron is still in the laboratory stage, and how to industrialize it is a direction that needs to be worked hard in the future.

WWW.SLHPUREIRON.COM

SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　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.Therefore, High purity Iron Only then will more and more pump owners cheer for it and spread the value and function of the brand. 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.

WWW.SLHPUREIRON.COM

SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON

　　The preparation of nano-materials has always been a research hotspot and a research difficulty in the field of nano-technology. Although a variety of preparation methods of nano-materials have been developed, and great progress has been made in their preparation technology, due to the complex preparation process, high cost, small material size, internal holes and pollution, it is difficult to obtain integral metal materials with nano-particle size so far.understand High purity Iron In order to better serve customers and reflect the core competitiveness of products. https://www.slhpureiron.net

　　Therefore, how to prepare nano-materials with fewer defects by simpler and lower-cost means has become the pursuit goal in this field. In recent years, surface mechanical abrasion treatment (SMAT) has become a new method for preparing nano-materials. The nanocrystalline samples obtained by this method have a grain size within 100nm in a certain depth of the surface layer, and have a gradient structure of gradual transition between nano-,sub-micron and deformed grain layers, and are pollution-free and void-free.

　　Nanomaterials prepared by SMAT method have many potential application values because of the above characteristics, and have been applied in diffusion welding, surface alloying and nitriding. Self-nanocrystallization of various metals and alloys has been successfully achieved by SMAT method. Ultrasonic shot peening (USSP) is widely used in the preparation of nanomaterials by SMAT method, while Highenergyshotpeening,HESP (HESP) is seldom used.

　　Although some people have realized the surface self-nanocrystallization of pure iron by USSP, there is no report on the surface self-nanocrystallization of pure iron by HESP method. A severely plastic deformation layer with a certain thickness was obtained on the surface of industrial pure iron by HESP method.

　　By analyzing and characterizing the structure and properties of this severely plastic deformation layer, it was confirmed that a nanocrystalline layer with a certain thickness was obtained on the surface of industrial pure iron, and the surface of industrial pure iron was self-nanocrystallized.

WWW.SLHPUREIRON.COM

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.Since then, more and more people have found that Armco Iron The value of, thus affecting the choice of many people. 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.

WWW.SLHPUREIRON.COM

SLH Pure Iron

SHANXI SHENG LONG HUA MAGNETIC MATERIAL CO.,LTD

Email: sales@slhpureiron.com

WhatsApp: +86 13410953850

WeChat: SLHPUREIRON