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 …

Construction steps of refractory castables Read More »

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 »

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 »

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 …

Analysis of the causes of damage to alumina-magnesia carbon bricks and MgO-carbon brick during use of carbon-containing refractory materials Read More »

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 »

Nowadays, there are more and more companies and businesses selling furnace lining materials, and the prices are also varies. How to identify the quality of furnace lining materials and how to select furnace lining materials have become problems faced by foundry companies. They are usually tested and used, but this virtually increases the cost and …

Selection of furnace lining materials and analysis of factors that effectively improve the service life of induction furnaces Read More »

purging plug are high-end functional refractory materials that do not work continuously during the entire ladle turnover cycle, so different physical and chemical corrosion will occur at different times. Damage to purging plug can be divided into the following categories: 1.Oxygen purging effect From the completion of tapping the ladle to the next steel connection, …

What are the ways of damaging purging plug? Read More »