Electric arc furnace is a kind of electric furnace that utilizes electric arc energy to smelt metal. Industrial application of electric arc furnace can be divided into three categories: the first category is direct heating type, the arc occurs in the special electrode rod and be melted between the charge, the charge is directly subjected […]

In the powder metallurgy furnace lining refractory material selection, its refractory materials have many categories, mainly heavy refractory bricks, including refractory clay bricks, high alumina bricks, silica bricks, fused corundum bricks, silicon carbide bricks, carbon bricks and so on. 1.Clay Brick Clay brick is composed of refractory clay or kaolin (mainly composed of Al2O3, SiO2,

Due to the development of clean steel and ultra-low carbon steel and the requirements of energy saving, the development of low-carbon refractories has become an inevitable trend. At present, the main development trend of carbon-containing refractories used in various parts of the electric arc furnace, such as magnesium-carbon bricks, aluminum-carbon materials, Al2O3-MgO-C materials, or other

In traditional processes, the carbon content of magnesium carbon bricks is generally 14%-20%, and the source of carbon is basically from graphite. This is because graphite is resistant to high temperatures, has little mass loss, small volume expansion and contraction, and poor wettability to slag. Traditional magnesium carbon refractory materials will gradually expose the following

Refractory castables are the non-calcined, irregular refractory materials, accounting for 1/3 of the total output of refractory materials in foreign countries. Because the castables can solve some complex parts of the kiln lining problems. Composition of refractory castables Refractory castables consist of a mixture of granular and powdered materials and are available in a wide

In addition to price, the selection factors of refractory materials also need to consider the following factors: longer service life; better thermal insulation effect; simpler masonry method and faster masonry speed; fast maintenance speed, etc.Amorphous refractory materials, also known as bulk refractory materials, are composed of bulk particles and fine powders. They do not need

The development of induction furnaces is closely related to the progress of refractory technology. The design of large-scale industrial frequency crucible induction furnaces often starts with the selection of refractory materials and simulation tests of furnace linings. The increase in the capacity of groove induction furnaces, the expansion of the application range (from non-ferrous metal

With the development of the economy, my country’s scrap steel resources are gradually increasing. It is expected that by 2030, my country’s scrap steel resources will increase from the current 200 million tons to 300 million tons. Under the guidance of national energy conservation and consumption reduction, the reuse of scrap steel resources is particularly