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 …
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 …
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 »
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 …
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 …
Ferroalloy electric furnace furnaces, especially cold stamped paste villages, when the knotting quality does not meet the required requirements, and the oven lining time and heating rate are not closely controlled during baking, the baking quality of the furnace village will not be achieved. To normal production requirements. According to the reasons for the damage …
Main measures to prolong the life of ferroalloy furnace lining Read More »
Sliding plate is the core component of ladle sliding spout, which is the component that directly controls steel pouring and determines the function of sliding spout. If the sliding plate leaks steel in the process of steel pouring, it will cause the continuous casting to break pouring, or cause the vicious accident of burning out …
How to prevent steel leakage between ladle slide gate? Read More »
There are mainly two types of Induction Furnace. They are channel Induction Furnace, and coreless Induction Furnace. Advantages of Using An Induction Melting Furnace Disadvantages of traditional sintering method: How does the Induction Furnace work? An induction furnace is an electrical device used to heat metal or other conductive materials. An induction furnace consists of …
Improvement of Sintering Method for Induction Furnace Read More »
With the increase in steel production, a large amount of scrap steel is also produced in the society, which provides conditions for electric furnace steelmaking in cast steel production. As electric furnaces that use electricity as heat energy, they can be divided into two categories. One isEAFs, which use electric arcs to generate heat to …
Analysis of the advantages and disadvantages of EAF and induction furnace steelmaking Read More »
As a refractory material for the lining of the refining furnace, the aluminum-magnesium carbon brick fully exerts the strong slag corrosion resistance of the magnesia, the low expansion of carbon and the high thermal conductivity, and makes up for the defect of the spalling resistance of the magnesia. The excellent performance of aluminum-magnesium carbon brick …
This article introduces the process of manufacturing magnesia carbon bricks, understands how to manufacture magnesia carbon bricks and other product features of magnesia carbon bricks. The process flow of magnesia carbon brick production 1.Broken to pieces 2.Ingredients (weighing) 3.Preparation of mud (mixing, kneading) 4.Forming 5.Heat treatment The details of manufacturing magnesia carbon bricks are as …
Making high alumina brick as following: The most common way to manufacture high alumina brick is through the firing of bauxite, which naturally contains a blend of both aluminum oxide and something called “kaolinitic clay”, which is a clay composed of layered silica. Once this material is fired it creates a composition of alumina and mullite, …
