Article List

• Cooling methods arc furnaces

  Smaller arc furnaces may be adequately cooled by circulation of air over structural elements of the shell and roof, but larger installations require intensive forced cooling to maintain the structure within safe operating limits. The furnace shell and roof may be cooled either by water circulated th

  ZBTECH News March 10, 2023
• Advantages for steelmaking

  The use of EAF allows steel to be made from 100% scrap metal raw material. This significantly reduces the energy required to make steel compared to ore primary steelmaking.Another benefit is flexibility: While blast furnaces cannot drastically change output and can run for years at a time, electric

  ZBTECH News March 09, 2023
• Energy density of electric arc furnace

  Producing one ton of steel in an electric arc furnace requires about 400 kWh per short ton (1.44 gigajoules) or about 440 kWh per ton (1.6 GJ); the theoretical minimum energy required to melt one ton of scrap is 300 kWh (1.09 GJ) (melting point 1,520 °C (2,768 °F)). Thus, a 300-ton, 300-MVA EAF woul

  ZBTECH News March 03, 2023
• Electric arc furnace and Construction

  An Electric Arc Furnace (EAF) is a furnace in which materials are heated by an electric arc.Industrial electric arc furnaces range in size from small units with a capacity of about 1 ton (used in foundries for the production of cast iron products) to about 400 ton units for secondary steelmaking. E

  ZBTECH News March 02, 2023
• Ladle and types

  In metallurgy, a ladle is a barrel or vessel used for transporting and pouring molten metal. Ladles are commonly used in foundries and range in size from small hand-held containers similar to kitchen ladles, which can hold 20 kg (44 lbs), to large steel mill ladles, which can hold up to 300 tons (29

  ZBTECH News March 24, 2023
• Vacuum furnace and common uses

  A vacuum furnace is a furnace in which the products in the furnace are surrounded by vacuum during processing. The absence of air or other gases prevents oxidation, product heat loss through convection, and eliminates sources of contamination. This allows the furnace to heat materials (usually metal

  ZBTECH News March 23, 2023
• High Voltage and its production

  High voltage is an electrical potential large enough to cause injury or damage. In some industries, high voltage refers to a voltage above a certain threshold. Equipment and conductors carrying high voltages require special safety requirements and procedures.High voltage for power distribution, cath

  ZBTECH News February 02, 2023
• Sparks in air and uses

  The dielectric breakdown strength of dry air between spherical electrodes is approximately 33 kV/cm at standard temperature and pressure (STP). [8] This is only a rough guide, as the actual breakdown voltage depends largely on the shape and size of the electrodes. Strong electric fields (generated b

  ZBTECH News February 03, 2023
• High Alumina Brick Manufacturing Process

  The manufacturing process of high alumina bricks is similar to that of clay bricks. But the difference is that the proportion of clinker used in high alumina bricks is relatively high, up to 90~95%. Before the clinker is crushed and fired at a high temperature of up to 1500~1600 degrees, all the iro

  ZBTECH News February 09, 2023
• High Alumina Bricks

  High Alumina BricksHigh alumina brick is a kind of neutral refractory material, which is made of bauxite or other raw materials with high alumina content. It has high refractoriness, high load refractoriness, good thermal shock resistance, slag erosion resistance, and spalling resistance. Good and o

  ZBTECH News February 10, 2023