Overview of Bottom-blowing porous plugs Since the 1960s, ladle secondary refining processes have been adopted by steelmakers. Operational experience has demonstrated that effective inert gas treatment is essential for successful secondary refining in the ladle. Initial inert gas stirring relied on top-blown argon lances; however, this method had significant limitations, particularly in effectively stirring the …

Physicochemical property requirements for bottom-blowing porous plugs and well blocks for refining ladles Read More »

Permeable bricks are crucial functional components in the bottom-blown argon process of secondary refining in steel ladles. They possess both metallurgical functions of homogenizing and purifying molten steel. On one hand, the stirring effect of argon gas helps to homogenize the temperature and composition of molten steel in different parts of the ladle. On the …

Analysis of the damage mechanism of steel ladle permeable bricks with different structures Read More »

Magnesium carbon brick in use in addition to withstand high temperature, oxidation and slag erosion, but also need to withstand the impact of steel and scouring effect, which requires magnesium carbon brick has a high high temperature strength. High-temperature flexural strength that has become a measure of high-temperature strength of magnesium-carbon bricks indicators, but also …

Three directions to improve the high temperature flexural strength of magnesium carbon bricks Read More »

1.Refractory Classification 1, Refractory materials can be divided into 8 categories according to the chemical mineral composition: siliceous materials. Aluminum silicate material. Magnesium material. Dolomitic materials. Chromium material. Carbon materials. Zirconium Special refractories. 2, Refractory materials can be divided into 3 categories according to chemical properties: acid refractory materials. Neutral refractories Alkaline refractories. 3, Refractory …

Basic knowledge and classification of electric furnace refractories Read More »

Improving the performance and service life of corundum castables is an important issue in the field of refractory research. 1.Basic characteristics of corundum castables Corundum castable is a high-performance refractory material made of alumina (Al2O3) as the main raw material through high-temperature firing. It has excellent properties such as high melting point (2050℃), high hardness, …

How to improve the performance and service life of corundum castables Read More »

Medium frequency furnace furnace use process of various processes on the service life of the furnace is also quite important, a variety of improper operation may reduce the service life of the furnace. Therefore, in the use of the process should pay attention to the following points: 1. in the use of medium frequency furnace, …

How to prolong the life of medium frequency furnace Read More »

Bake the furnace for a period of time, the shutdown is not good to start Failure phenomenon: for the new melting furnace or knotting of the transmittance furnace, at the beginning of the baking furnace can be started, the voltage can be increased to reach the maximum value, but baking furnace after a period of …

Medium frequency furnace 6 common fault analysis and treatment Read More »

Steel ladle refractory materials for liquid steel quality and temperature drop of the impact is multifaceted, based on this reality, in the use of steel ladle link, should be scientifically adjusted refractory material categories and ratios to ensure that its role is reasonable and effective to play for the subsequent production operations to create a …

Influence of ladle refractories on the quality and temperature drop of molten steel Read More »

Refractory materials belong to is a large piece of industrial goods, transportation, often using logistics, freight or rail transportation, and in the process of loading and unloading is not like treating glass, porcelain, etc. so careful, and generally will not have a special thickening of the soft packaging for protection, which inevitably leads to damage …

How to define refractory bricks with missing corners and edges, cracks and melt holes? Read More »

Steel bag weekly transfer process: Turn on the furnace/electric furnace out of steel for one or two refined treatment, one consecutive casting steel, one steel bag is prepared to wait for the steel. The normal turnover time is 100 ~ 140min depending on the difference between steel and connecting machines. The temperature of the steel …

Causes and solutions for damage of ladle refractory materials Read More »

In recent years, some steel casting companies in our country have adopted spinel-type furnace lining materials. Among them, some manufacturers purchase materials pre-prepared by foreign manufacturers. Although the use effect is very good, the production cost has increased a lot, and its characteristics are not good. Very understanding. This article mainly wants to introduce some …

How to choose furnace lining and furnace materials for medium frequency furnace production of cast steel Read More »

Magnesium carbon brick is a new type of refractory material emerged in the 1970s, it is high temperature sintered magnesium sand or electrofused magnesium sand and carbonaceous materials as raw materials, with a variety of carbonaceous bonding agent made of non-burning refractories, magnesium carbon brick that maintains the advantages of carbonaceous refractory materials, and at …

Application of magnesium carbon bricks in the iron and steel metallurgy industry Read More »

In the ladle, due to the complex physical and chemical environment at the slag line, the furnace lining is the most vulnerable to damage. The chemical attack of steel slag on magnesia-carbon bricks is mainly through the dissolution of magnesia and the oxidation of graphite in the fire brick body. Under the combined action of …

Erosion of LRF magnesia carbon brick by slag Read More »

With the reform and improvement of continuous casting technology and functional refractories, the most commonly used in our country is the zirconium sizing nozzle. According to the content of zirconia in the sizing nozzle, the zirconium sizing nozzle can be divided into ordinary type sizing water and zirconia type sizing water are two categories, ordinary …

Classification of tundish sizing nozzle Read More »