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 »
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 …
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, …
During our visits to many steel companies around the world, we found that some of them focus too much on the service life of ladle slide gate plate and lower nozzle, some even ask for more than 10 heats, here are some of our opinions on this condition: 1.Longer service life slide gate plate and …
The discussion on ladle slide gate plate and lower nozzle Read More »
The ladle slide gate plate system consists of ladle well brick, upper nozzle, upper slide gate plate, lower slide gate plate, lower nozzle, and sliding gate mechanism, the structure of which is shown in Figure. 1.The working principle of the sliding gate plate is to make the upper and lower slide gate plate casting holes …
How to solve the sliding gate plate leakage of steel Read More »
Ladle purging plug play an important role in the process of molten steel refining. As a refractory product, there will be consumption and damage during use. If the use method is not properly grasped, it will affect normal production and even cause serious production accidents such as steel breakout. The purging plug is located at …
It can be seen from the process flow chart that the production process of magnesium carbon bricks is not complicated, but to produce high-quality products, each process must be strictly monitored, including mixing, moulding, heat treatment (drying) of these links is particularly important in the production of the place. 1.Breaking and crushing Broken crushing is …
The process of magnesium carbon brick production Read More »
