High alumina brick is a commonly used refractory material, the main component of which is alumina (Al₂O₃). Its alumina content is usually above 48%. According to the different alumina content, it can be divided into multiple grades, such as special grade, first grade, second grade, third grade, etc. High alumina brick has many excellent properties. …
Production process and use of high alumina bricks 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 »
Refractory castables, as an indispensable refractory material, have strength characteristics that are directly related to their quality and performance. In many industrial fields, such as metallurgy, cement production, glass manufacturing and chemical industry, castables play a pivotal role. Therefore, the research and development of high-performance castables is particularly important. It is especially worth mentioning that …
What factors affect the strength of refractory castables? Read More »
Refractory bricks and refractory mortar (1) The working conditions of the mud in the joints of refractory masonry bricks are exactly the same as those of refractory bricks. Therefore, the main technical indicators of the two, refractoriness and chemical composition, should also be the same or compatible. (2) The type and brand of mud should …
Requirements for refractory mortar in refractory brick masonry Read More »
With the continuous acceleration of the industrialization process and the rapid growth of the economy, refractory materials, as key industrial raw materials, play a vital role in the field of high-temperature industry. In the process of widespread use and large-scale production of refractory materials, the environmental problems caused by waste refractory materials have become increasingly …
Research on recycling and resource utilization technology of refractory brick materials Read More »
Refractory aggregates and refractory powders in refractory castables are collectively referred to as main raw materials, and the rest are called secondary raw materials. Refractory aggregates are the +0.088mm or +0.1mm part of refractory castables. They are the main material in the organizational structure of refractory castables and play a skeleton role. Therefore, refractory aggregates …
7 kinds of corundum refractory raw materials commonly used in refractory castables Read More »
We have shared the construction methods of refractory castables in many articles in the past, including blast furnaces, circulating fluidized bed boilers, etc. Today, taking the second-stage converter in the petrochemical industry as an example, we will briefly share the construction of refractory castables for converters. The construction of refractory castables for the second-stage converter …
With the development of new dry cement production technology, the corresponding refractory materials have also developed greatly. In addition to the breakthrough of conventional refractory bricks, the performance of fire -resistant pouring materials is also more and more complete, and it is widely used in the irregular parts in the kiln. As we all know, …
How to improve the life cycle of refractory castable Read More »
Refractory bricks are an important refractory material, widely used in various high-temperature industrial furnaces. For those who are not familiar with the refractory industry, they may think that refractory bricks are only square in shape, but in fact, there are many types of refractory bricks. In terms of material, the most commonly used refractory bricks …
Several common refractory bricks in the refractory industry Read More »
Aluminum-magnesium refractory castable is a cutting-edge lining product that is currently widely used in ladles. Refractory material workers at home and abroad have done a lot of work on aluminum-magnesium castables, mainly introducing the factors affecting the performance of aluminum-magnesium castables from several aspects such as aggregate, magnesia, corundum fine powder and powder, and silica …
1.What is the role of continuous casting slag? During the pouring process, powdered or granular slag is continuously added to the surface of the molten steel in the crystallizer, which is called protective slag. The functions of protective slag are as follows: (1) Insulation and heat preservation to prevent heat dissipation; (2) Isolation of air …
Function and influencing factors of continuous casting mold powder Read More »
Heating furnace is a thermal equipment used to heat steel billets or small ingots during steel rolling or forging, and its operating temperature is generally 1300~1400℃. With the large-scale and high-efficiency of rolling mills, higher requirements are put forward for heating furnaces. Its development trend is large-scale, low-consumption, pollution-free and automated operation, and the furnace …
Types of refractory materials used in various parts of reheating furnaces 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 the field of refractory materials, magnesia carbon bricks are widely used in high-temperature industrial environments such as steel smelting and glass manufacturing due to their excellent high temperature resistance, slag erosion resistance and thermal shock resistance. As one of the important additives of magnesia carbon bricks, the selection and application of metal silicon powder …
Selection of Metal Silicon Powder for Magnesia Carbon Bricks Read More »
1. Broken to pieces Crushing is the process of processing bulk materials into ideal particle size materials. It is an indispensable process in the production of refractory materials. Although it is simple, it is very important. It has an important impact on the stability of product quality. At the same time, the crushing equipment consumes …
The process flow of magnesia carbon brick production Read More »
Although carbon-containing refractory materials have significant resistance to molten steel erosion, slag resistance, good thermal shock resistance and high temperature flexural strength, the oxidation problem of carbon limits its service life, and the magnesia carbon bricks are damaged during use. Mainly due to the oxidation of carbon by iron oxides in the slag and the …
When the electric furnace taps steel, the furnace body tilts to a certain angle (usually 45°) in the tapping direction. The molten steel flows through the tapping trough and enters the ladle. In addition to guiding the molten steel, the tapping trough also prevents the molten steel from scattering. , protect molten steel and reduce …
Detailed explanation of 7 types of refractory materials for trough tapping structures 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 …
The reasons for steel leakage between ladle slide plates are manifold, and poor control of sliding spout machinery, slide plate installation operation, slide plate quality, ladle steel pouring operation, steel smelting and other aspects may lead to steel leakage between slide plates. For different reasons to develop appropriate preventive measures, can reduce the chances of …
Preventive measures for steel leakage accidents between ladle slide gate Read More »
Waste refractory materials can be used as secondary raw materials after simple picking, crushing and other initial processing. Generally to a small amount added to the production process of higher quality products, or add a higher proportion to the metallurgical auxiliary materials and other low value-added products. The economic and social benefits generated by the …
Four recycling technologies to give new life to used magnesium carbon bricks Read More »
