wanhaorefractory

In recent years, the steelmaking plant of Fujian Sangang Minguang Co., Ltd. (hereinafter referred to as Sangang Minguang) and its suppliers have dedicated themselves to enhancing the stability of refractory materials. They have achieved notable results regarding service life, accident rate reduction, and cost efficiency, thereby contributing to the company’s development. Driven by technological upgrades …

Types, consumption, and technical improvements of refractories used in steelmaking plants Read More »

Carbon-based refractories are a new type of refractory material developed in the late 1970s. Utilizing the high refractoriness and non-wetting properties of graphite, they significantly improve the high-temperature performance and erosion resistance of refractory materials. They possess excellent thermal shock stability, slag erosion resistance, spalling resistance, and high-temperature creep resistance. Alumina-magnesia-carbon bricks are carbon-based refractories …

What are the effects of the main raw materials in aluminum-magnesium-carbon bricks and magnesium-carbon bricks on their performance? Read More »

Pressurized fluidized bed coal gasification technology is a new generation of large-scale, advanced coal gasification technology that has emerged in recent years alongside the rise of clean coal technology. The high-temperature, high-pressure nature of coal gasification reactions typically requires the installation of a refractory lining inside the gasifier. The gasifier structure is generally divided into …

A Study on the Alkali Resistance of Six Different Types of Refractory Materials and Recommendations for Refractory Selection in Alkali-Containing Environments Read More »

As the use of refractory castables becomes increasingly widespread, there are indeed certain methods and techniques for selecting the appropriate material type and specifications. Refractory castables are classified as neutral, acidic, or alkaline, and are further distinguished as heavy-duty or lightweight. Heavy-duty refractory castables are generally used for the working layer, while lightweight castables are …

How to select refractory castables Read More »

Magnesia-carbon refractories emerged in the 1970s and are now widely used in modern steel metallurgy, such as in the linings of various electric arc furnaces, ladles, and steelmaking refining furnaces (BOF, RH). Magnesia-carbon bricks are alkaline refractory materials made from magnesia and graphite using various binders. Graphite, as a crucial component of magnesia-carbon refractories, has …

Different graphite contents affect these performance characteristics of magnesia-carbon bricks Read More »

Argon blowing typically involves placing one or more permeable bricks at the bottom of a casting ladle or a brick-built ladle. After tapping, argon gas is blown through these permeable bricks, causing agitation of the molten steel. Argon blowing promotes the flotation of emulsified slag droplets and inclusions in the steel, and can partially remove …

Understanding the materials and properties of steel ladle permeable bricks Read More »

The formation of a crust at the bottom of an electric arc furnace (EAF) is a common problem in the production of high-alloy steel. This crust formation leads to a series of process issues: reduced furnace capacity, lower tapping rate, decreased tapping success rate, and reduced EAF smelting yield. This study investigated the crust formation …

Problems and solutions of shell formation at the hearth of tool steel and stainless steel produced in EBT electric furnaces Read More »