Jiangsu Aopuda, a leading brand of high-end rotary kiln equipment, has become BYD's core calcining equipment supplier for Phase II with its high-efficiency design and intelligent temperature control system, and has worked together to promote the innovation and upgrade of new energy material manufacturing! Customized rotary kiln design, temperature uniformity error ≤±5℃, ensures the consistency of the crystal structure of the positive electrode material, directly hits BYD's high-nickel material process pain points. The original "dynamic sealing technology" allows the oxygen content in the kiln to be precisely controlled, and the product qualification rate is increased to 99.8%.

Austrian Tyrolit is one of the world's leading manufacturers in the fields of grinding, cutting, drilling and dressing tools and construction industry machines. Founded in 1919, the family-owned company is a member of the Swarovski Group and is headquartered in Schwarz, Austria. It currently has 29 production bases and more than 4,500 employees in 11 countries on five continents. TYROLIT has four divisions, including metal manufacturing and precision grinding, industrial trade, construction, stone-ceramic-glass, and produces up to 80,000 products. The company delegation visited our company for exchange and was warmly received by our general manager and relevant department heads. The delegation visited the company's exhibition hall, production workshop and R&D center, and learned about our company's development history, technological innovation and business achievements in detail. At the symposium, the two sides conducted in-depth discussions on topics such as industry trends and cooperation opportunities, and expressed their willingness to strengthen communication and seek win-win results in the future. This exchange has laid a good foundation for further cooperation between the two sides, and they look forward to working together to create more value in the future.

Oerlikon is a Swiss company with a 100-year history. Its sales in 2006 were 4.8 billion Swiss francs, with more than 19,000 employees and 170 branches in 35 countries around the world. The company has now become a multinational, Fortune 500 company. Accompanied by the head of our company, the visiting team visited the production workshop, R&D center and other core areas, and learned in detail about our company's advanced production technology and innovative technological achievements. At the symposium, the two sides conducted in-depth discussions on topics such as industry development trends and technological innovation, and reached a preliminary consensus on the direction of future cooperation. This visit and exchange has laid a solid foundation for both parties to further deepen cooperation and achieve mutual benefit and win-win results.

Led by Professor Ye Zhizhen, an academician of the Chinese Academy of Sciences, the world's first all-solid-state perovskite production line was unveiled. It pioneered the "pomegranate structure" with dual matrix coating and the "all-solid-state perovskite quantum dots and luminescent masterbatch" technology, overcoming the international technical difficulties of uncontrollable crystallization and poor stability of quantum dots. It can achieve stable and efficient luminescence under high temperature, high humidity and strong light, and has refreshed the world record of related performance 7 times.

According to national standards, industrial resistance furnaces are classified into medium-temperature resistance furnaces, high-temperature box-type electric furnaces with metal heating elements, and high-temperature box-type electric furnaces with silicon carbide heating elements. For small resistance furnaces with a furnace length of no more than one meter, there is a uniform power distribution on the side walls and the bottom of the furnace. For large resistance furnaces, the power will be appropriately increased in areas with large heat dissipation, while the power will be appropriately reduced in areas with small heat dissipation. When heating the furnace charge, it must be in the air medium. Since there is no mechanized device for discharging, only small batches of workpieces can be used for normalizing, annealing and other heat treatments. The power distribution of box-type resistance furnaces is widely used in the industrial field. When distributing the power of the resistance furnace, it will be specifically analyzed according to the size of the resistance furnace. Just like this type of resistance furnace is divided into large and small, the power has different distribution methods for different resistance furnaces when distributing.

Because the electrode lifting mechanism did not reach the position, the secondary load was heavy when the power was supplied, the two-phase overcurrent tripped, and the light gas alarm was sounded at the same time. After the gas was discharged, the gas was ignited and flammable, and then the power was tested and it ran normally. The collapse of materials in the box-type electric furnace and the physical reaction mechanism in the furnace are easy to cause the secondary current to increase, and even the secondary side electrode short circuit and other phenomena, which have a great impact on the electric furnace transformer. The electric furnace transformer is an electrical equipment operating under harsh working conditions. There was a 12.5MVA ore-fired furnace producing silicon manganese products. Suddenly, two light gas alarm signals occurred, and the alarms generated by the two light gas were highly valued. The first light gas alarm signal was when the furnace was operating normally. Due to the physical and chemical reaction in the furnace, the secondary current increased. The rated current was 206.2A. At that time, it was running at 260A (the industry allows overload operation of 20-30%). The light gas alarm signal appeared. After the power outage, the gas was discharged and the power was supplied normally, and no abnormality was found. However, the second time, the light gas signal is when the furnace is powered on during shift change. The electric furnace transformer is one of the important components of ferroalloy equipment. The operating characteristics of the box-type furnace transformer are: frequent power outages, 24-hour operation, and electrode discharge after the furnace is taken out of the furnace, about 8-12 times. In addition, due to the characteristics of the smelting process, the load fluctuates greatly.

Performance analysis of low temperature deformation heat treatment: Recrystallization can occur. Substructure strengthening in low temperature deformation strengthening state, high strength; defect density increases, affecting the precipitation process Low temperature deformation heat treatment process Tube furnace: Typical process (cold deformation, various forms, depending on alloy and performance requirements) Special process (warm deformation-dynamic recovery, improve the stability of the organization after deformation heat treatment). Cold deformation before electric furnace aging High tensile strength and yield strength, but low plasticity Low temperature deformation heat treatment organization analysis: Cold deformation introduces dislocations, improves energy storage, and during low temperature aging, the matrix recovers and subgrains appear; (For alloys that have not been cold deformed, the grains are still quenched grains-it is possible to retain recrystallization) Dispersed particles may be dispersed, and the polygonization of the box furnace is affected by the precipitation particles.

With the development of emerging science and technology, various high-performance requirements have been put forward for materials, so that they can be applied to cutting-edge technologies such as computers, communications, lasers, aviation, aerospace, nuclear energy and national defense science; new materials have superior properties such as high temperature resistance, wear resistance, corrosion resistance and high strength, and have shown broad development prospects. The research and production of these materials and performance testing need to be carried out at high temperatures, and the temperature, pressure, atmosphere, temperature field and other process conditions are very strict. The design and development of new high-efficiency thermal equipment and the research on high-temperature generation technology largely determine the further development of materials. The design, construction and commissioning of heat sources used to manufacture high-temperature materials require the same amount of labor and cost as the research and development of new materials. For many materials and products, in addition to atmospheric pressure and vacuum sintering, the application and continuous progress of hot pressing sintering, atmosphere pressure sintering and hot isostatic pressing technology have accelerated the development of industrial electric furnaces. It makes the development of new industrial electric furnaces more difficult and more advanced. Compared with flame kilns, electric furnaces have many advantages: 1. High thermal efficiency. The heating furnace does not need to burn flue gas as a heat transfer medium, there is no heat loss caused by exhaust gas, the space heat intensity is high, and it can reach a very high temperature.2. Good product quality. The atmosphere in the furnace is clean, the furnace temperature can be controlled, the temperature field is uniform and stable, and it can meet the requirements of various firing systems.3. It can be fired in various artificial atmospheres. For example, products can be fired in N2, Ar, H2, O2 and other atmospheres.4. Simple equipment. Small footprint, saving equipment investment.5. Easy to operate. Good working conditions. However, the auxiliary equipment of the electric furnace is relatively complex, and the installation cost and electricity cost are high. Industrial electric furnace is a comprehensive application technology. It requires designers and researchers to have a solid theoretical foundation in heat transfer, gas mechanics, mechanics, electrical engineering, microelectronics and materials science. They should also have rich production practice experience and professional knowledge related to processing and manufacturing. Modern industrial electric furnaces are highly mechanized and automated, and are computer controlled and managed. Industrial electric furnaces are facing comprehensive technological innovations. They need to transform existing industrial electric furnaces, design and develop new energy-saving and multi-purpose electric furnaces, study key furnace components, continuously improve their technical performance, form specialized production, digest and introduce advanced technologies, and improve the overall design and manufacturing level of my country's electric furnace industry.

A solid bottom furnace is a type of furnace in which the billet is heated on a solid bottom. All the heat required by the billet is supplied by the upper part. Since only one side is heated, this type of furnace is usually only used for heating small-section billets and round tube billets, and the production is low, and usually one-stage or two-stage heating is used. Since there is no bottom water pipe, the insulation is better, so this type of furnace still has a future in energy saving through reform. The two-stage furnace is divided into a preheating section and a heating section along the length of the furnace. The function of the preheating section is to use the high-temperature flue gas from the heating section to preheat the billet to save feed. The two-stage furnace is generally suitable for heating small-section billets. The billet has almost no equalizing time in the furnace and is always in the heating stage. The temperature gradually decreases along the length of the furnace. Since there is no equalizing section, the temperature difference between the inside and outside is large when heating large-section billets. In terms of furnace structure, there is no obvious boundary between the furnace waist and the furnace head of this furnace at the height of the furnace top. The temperature distribution of the three-stage furnace is different from that of the two-stage furnace. The temperature of the heating section rises, and the billet heats faster in this section. The temperature difference on the cross section is also larger. The billet must be heated in the equalizing section before it can be discharged. The billet is heated slowly in the equalizing section, or the surface temperature of the billet is maintained unchanged to increase the internal temperature of the billet. Since the billet does not absorb a lot of heat in the equalizing section, the furnace temperature is slightly lower than that in the heating section. Obviously, the three-stage furnace has higher output and better heating quality than the two-stage furnace, and is suitable for heating thicker billets. Compared with the two-stage furnace, the heating section and the equalizing section of this type of furnace have obvious boundaries in terms of furnace structure. In terms of burner configuration, the waist furnace provides more heat and the head furnace provides less.