Jennifer, Author at Shanghai Metallurgy Equipment Group - Página 10 de 12

Author: Jennifer

Internal Quality of Casting Billet

Internal Quality of Casting Billet

The internal quality of the billet refers to the low power structure,component segregation, central loosening, central segregation and cracks. The formation of defects in billet involves the action of heat transfer, mass transfer and stress in solidification. After the billet is thermally processed, some defects can disappear, some are deformed,…
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Remove Inclusions of Steel Liquid

Remove Inclusions of Steel Liquid

The purity of the cast billet is mainly determined by the treatment process before the molten steel enters the mould. How can keep the billet with less inclusions? Currently there are a few methods  ito use, such as the appropriate process of refining process, tundish metallurgy, protective pouring  operations. The…
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Billet Casting Process Equipment

Continuous casting process will turn steel liquid into billets, in CCM unit main process equipment or machines as following. Ladle support equipment In continuous casting, ladles are generally used to supply steel to the continuous caster. The equipment that transports the ladle to the top of the intermediate tank and…
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Nitrogen and Steel

The Source of Nitrogen Nitrogen in steel is mainly inhaled and dissolved in the exposed process of steel.Electric furnace steelmaking, including secondary refining arc heating, accelerates the dissociation of gas, so the content of nitrogen is high. Long smelting time in open hearth furnace increases nitrogen content. Improper control of…
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Oxygen and Steel

The Source of oxygen There is a certain amount of oxygen in molten steel during steel smelting. Oxygen is supplied in the production process, because oxidation and the removal of P, S, Si and C all requires the supply of oxygen to molten iron. However, there are various steelmaking processes,…
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Hydrogen and Steel

The Source of hydrogen The main ways for hydrogen to enter the liquid steel are: through the rust on the scrap steel surface (xFeO?yFe3O4?2H2O); Hydrogen in ferroalloy; Water in carburizer, deoxidizer, mulch, insulation, slagging agent (Ca(OH)2), bitumen and tar; Ladle, tundish and injection pipe undried; Spray coating of ingot mould;…
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Ladle Furnace

Ladle furnace is mostly used in the refining of bearing steel, alloy structural steel, tool steel, spring steel, carbon steel and other steel types. Electric arc furnace, LF and CCM combine into a high efficiency short process production line with remarkable refining effect. The LF can refine the liquid with…
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Main Elements Control in EAF Steelmaking

For the electric furnace steelmaking, ingredients is related to whether the melting can smoothly operate andcost of the production. The reasonable ingredients can shorten melting time. Firstly it should carefully calculate correctly and accurate weighing the charge, next the size of the furnace charge should be fit  proportionally. Thirdly various ingredients…
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