Article List
- Introduction to electroslag remelting development historyThe three major breakthroughs in special metallurgy in the 20th century are vacuum metallurgy, plasma metallurgy and electroslag metallurgy.ZBTECH News September 05, 2022
- Introduction to AOD dolomite brick refractory materialDuring the operation of the AOD furnace, the selective loss of the matrix components of the asphalt-impregnated and fired dolomite bricks leads to an increase in porosity and a loose structure, which are the main reasons for the rapid erosion of this type of dolomite bricks.ZBTECH News August 29, 2022
- How to choose AOD furnace refractory material?Commonly used refractory materials for AOD furnaces are: ordinary magnesia-chrome bricks, high-alumina plastics, magnesia castables, directly combined magnesia-chrome bricks, recombined magnesia-chrome bricks, semi-recombined magnesia-chrome bricks, high-purity directly combined magnesia-chrome bricks and Combined with magnesia chrome brick, etc.ZBTECH News August 24, 2022
- Differences between AOD and VOD furnacesAOD refining method is the abbreviation of argon oxygen decarburization method. When refining stainless steel, it blows oxygen into molten steel under standard atmospheric pressure, and blows inert gas (Ar, N2) to achieve the effect of false vacuum by reducing CO partial pressure, so that the carbon content is reduced to a very low level. level, and inhibits the oxidation of chromium in steel.ZBTECH News August 19, 2022
- AOD introduction to principle, composition and featuresAOD process is the abbreviation of argon-oxygen decarburization refining method. It is to blow oxygen and decarburize molten steel under normal pressure, while blowing argon (or nitrogen) to reduce the partial pressure of carbon monoxide during decarburization.ZBTECH News August 15, 2022
- Differences between electric arc furnace and induction furnaceElectric arc furnaces use power frequency electricity, while intermediate frequency electric furnaces use intermediate frequency electricity. Compared with the electric arc furnace, the induction furnace has high thermal efficiency, so as to achieve high production efficiency, flexible operation and low energy consumption.ZBTECH News August 12, 2022
- Learn vacuum furnace heat treatment process and advantagesVacuum heat treatment is a metal heat treatment process in which the metal workpiece is heated below 1 atmosphere pressure (that is, under negative pressure). Among them, the vacuum environment in which the vacuum heat treatment is located includes low vacuum, medium vacuum, high vacuum and ultra-high vacuum.ZBTECH News August 08, 2022
- Learn more about eaf steelmaking technology developmentEfficient crushing and sorting of scrap steel is the premise and key to ensure the quality of EAF steelmaking raw materials, and it is very important for EAF steelmaking to achieve clean smelting. The scrap steel after crushing and sorting can greatly improve the cleanliness of raw materials, and provide clean and reliable raw material guarantee for electric arc furnace steelmaking.ZBTECH News August 05, 2022
- Overview of arc furnace steelmaking technology developmentIn recent years, electric arc furnace steelmaking has made great progress in efficient smelting, energy saving, environmental protection and intelligent control, and the technological level of electric arc furnace steelmaking has been significantly improved; at the same time, various new electric arc furnaces have been developed and applied, which has greatly promoted steel Advances in industrial technology.ZBTECH News August 01, 2022
- How to choose castables for EAF roof with long life?The electric furnace roof is generally made of high-alumina refractory materials. In the past, the electric furnace cover was mostly built with refractory bricks. Nowadays, high-alumina castables are mostly used for integral casting on site or prefabricated off-site. The castables for electric furnace cover mainly use corundum and bauxite as refractory raw materials, add mullite and other admixtures, and prepare according to the formula proportion.ZBTECH News July 29, 2022