Refractory castables are a type of unshaped refractory materials. They are a mixture of refractory aggregates, binders and admixtures, which can be used as mud after adding water (or liquid binder) and mixing. Refractory castables have a certain coagulation and hardening time after construction. Therefore, after casting and forming, they need to be cured for …
How to add water to refractory castables during construction Read More »
(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 be selected by the designer according …
Requirements for refractory mortar in refractory brick masonry Read More »
The ladle slag line is the part where the molten steel is in direct contact with the air. At present, most of the ladle slag line masonry uses magnesia carbon bricks. Due to the temperature difference and the existence of oxygen-rich environment, the erosion rate of this part is significantly faster than other parts. In …
Factors affecting the life of refractory bricks in ladle slag line Read More »
Production process of refractory bricks The production of refractory bricks goes through multiple production processes and procedures. Each Zhengyuan refractory brick undergoes strict quality control. Today, the editor will introduce to you how refractory bricks are made. Refractory brick production process introduction: raw material selection, high temperature calcination, sorting and grading, crushing and grinding, scientific …
How to make refractory bricks and special shaped refractory bricks Read More »
1.Furnace bottom There are three structural forms: full ceramic, full carbon brick and integrated furnace bottom. In the past, when designing the furnace bottom, heat dissipation and cooling conditions were not taken seriously, which was a typical corrosion-inhibiting full ceramic design. At present, this form is only suitable for the furnace bottom structure of small …
Selection and laying methods of refractory bricks in various parts of blast furnace Read More »
Currently common methods to reduce the high temperature erosion of magnesium carbon bricks are the following three points: 1.Select high-quality materials with stable compositions to improve the erosion resistance, thermal shock resistance and structural spalling resistance of the materials Selection of high-purity and high-quality electrofused magnesia, which has the advantages of large grain size, high …
Three common methods to reduce high temperature erosion of magnesium carbon bricks Read More »
The use of magnesium carbon bricks in the converter, mainly masonry converter lining. According to different parts, different erosion conditions, choose different materials of magnesium carbon bricks, masonry in different parts of the converter, the implementation of integrated masonry. For vulnerable parts, such as trunnions and slag lines, which are often affected by airflow, steel …
Magnesium carbon brick damage mechanism and solution countermeasures Read More »
Ladle has the function of receiving molten steel and refining outside the furnace. The service life of ladle directly affects the ladle turnover rate and refractory consumption, thus affecting the smelting cost of steel mills. Taking 75t ladle as an example, this paper analyzes the factors affecting the service life of ladle, and takes corresponding …
4 effective measures to improve the life of ladle Read More »
