wanhaorefractory

Refractory long life technology for slab intermediate package

The middle bag is an important production equipment in the continuous casting process of steel, the bag age, life length directly affects the yield of continuous casting billet as well as the continuity and stability of the production organization. Extend the service life of continuous casting intermediate package, not only can shorten the operation time …

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Commonly used heat insulation refractory materials and performance and working principle introduction

Introduction to room temperature thermal insulation refractories There are many specifications of thermal insulation refractory materials. We will briefly introduce them: 1.Vacuum insulation panel 1.1 Characteristics of vacuum insulation panels: (1) Convenient construction, light weight and cost saving (2) High temperature resistance, high pressure resistance and long service life (3) Good high temperature insulation performance …

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Steel ladle commonly used refractory material classification details

Steel ladle (ladle) carries the dual task of carrying steel and refining outside the furnace, with the development of steelmaking technology, China’s ladle refractories have also been well developed. Especially since the 1980s, China’s refractory research institutions, production enterprises and the use of manufacturers, close cooperation, combined with China’s national conditions, and continue to develop …

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Improve the age of the medium frequency furnace can not be ignored several factors

Furnace age, also known as furnace lining life, refers to the intermediate frequency furnace lining from put into use to replace the new lining to stop a furnace service period of the total number of steelmaking furnace. It is a comprehensive index to measure the production level of IF furnace. Therefore, the age of the …

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Describe several technical requirements for refractory materials

1.Bulk density Bulk density of refractory material is the mass per unit volume, which is usually used to describe the density and weight characteristics of the material. Bulk density is one of the important physical and chemical indexes of refractory bricks, which can directly affect the compactness of refractory bricks, as well as thermal insulation …

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Application technology and development trend of magnesium-carbon refractories for converters

The converter plays the functions of decarburization, dephosphorization, desulfurization, alloying, heating, removal of inclusions, etc. In smelting, the converter does not need external heat and relies on the exothermic reaction of oxidation in the steel. In the converter, the furnace lining, steel outlet, breathable bricks, etc. are composed of refractory materials. Since its development in …

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Medium frequency furnace lining damage causes and solutions

Medium frequency furnace use process, the thickness of the refractory material used for the furnace lining is only 70-110mm, the inner side of the contact with the high temperature metal liquid, the outer side of the water-cooled coils close to the refractory material inside and outside temperature difference is very large, in the use of …

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Construction sequence and method of refractories for steel converter lining

Converter steelmaking is widely adopted by domestic and foreign steel smelting industry for its high productivity, variety, good quality, high thermal efficiency, good adaptability of raw materials, low consumption, low cost, low infrastructure investment, fast construction speed, etc. It has become one of the main methods of modern steelmaking. The refractory materials for furnace lining …

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What are the higher requirements for refractory materials in induction furnaces

Induction furnace equipment structure Induction furnace is the use of electromagnetic field induction principle of electrical energy into thermal energy, so that the metal charge heat melting high temperature melting equipment. According to the structure, there are no core induction furnace (crucible type) and core induction furnace (trench type) two categories. Induction furnaces have the …

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Causes of refractory damage in various parts of the electric furnace

Short process steelmaking in electric furnaces is a new process for steel production with scrap as the main raw material. The electric furnace consists of furnace body and furnace cover, the shell of the furnace body is made of steel plate, and the inner lining is made of refractory material. The outer ring of the …

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