Technical Articles

What is the use temperature of lightweight high alu...

What is the use temperature of lightweight high alu...

According to the reference physical and chemical indicators, the AL2O3 content of 50% is used below 1300°C, the AL2O3 content of 52% is used below 1350°C, and the AL2O3 content of 56% is used below 1380°C....

How is the glass melting furnace insulated?...

How is the glass melting furnace insulated?...

After the furnace masonry is completed, the next step is the baking process of the furnace. Before baking the furnace, it is necessary to clarify the insulation problem of the furnace cover. The furnace cover is cold insulation (referred to as "cold insulat...

What is semi-silica brick ?...

What is semi-silica brick ?...

The AL2O3 content of the semi-silica brick is 15%-30%, and the SiO2 content is more than 65%. It is a semi-acid refractory brick. Semi-silica bricks generally use refractory clay containing quartz sand, pyrophyllite and refractory clay or kaolin tailin...

$What is refractory bricks‘ joint?...$

What is refractory bricks‘ joint?...

The brick joints of refractory bricks are the gaps between bricks and bricks, which need to be bonded or filled with materials. Generally, high-temperature refractory mud of the same material is used. to fill the cracks....

$What is the features of the lightweight refractory ...$

What is the features of the lightweight refractory ...

The disadvantage of lightweight refractory bricks is poor thermal insulation performance, and the advantage is that they have good long-term high temperature resistance. In use, the weight of the kiln body can be reduced, thereby reducing energy consumption ...

What is alumina bubble brick?...

What is alumina bubble brick?...

Alumina bubble brick is made of alumina hollow ball and alumina powder as the main raw materials, combined with other binders, and fired at a high temperature of 1750°C . It belongs to a kind of ultra-high temperature energy-saving thermal insulation mater...

$What are the high strength corundum refractory prod...$

What are the high strength corundum refractory prod...

Corundum refractory materials refer to refractory products mainly based on corundum phase, such as corundum brick corundum castables, etc. The main component is alumina, which has the characteristics of high strength, high wear resistance, and stable high te...

$What are the mullite refractory bricks?...$

What are the mullite refractory bricks?...

Mullite refractory brick is a lightweight mullite product synthesized by artificial synthetic mullite, adding organic composite filler according to the specific gravity of the product, vacuum extrusion molding, and high temperature sintering. ...

$How many types of refractory mud ?...$

How many types of refractory mud ?...

Refractory mud has magnesium, high alumina and clay fire mud. Different types of brick masonry use different fire mud. Various refractory muds can generally use water glass as a binder....

$What is refractory mortar?$

What is refractory mortar?

Refractory mortar is used in kiln lining construction to bond refractory bricks. It has strong adhesion and is also called high temperature binder. Its function is to fill the cracks of bricks and make the bricks as a whole....

What are the reasons for black hearts and cracks in...

What are the reasons for black hearts and cracks in...

Refractory brick manufacturers will have various problems in the production of high-alumina bricks. Today, I will introduce the relevant content of black hearts and cracks in the production of high-alumina refractory bricks....

What are the characteristics of commonly used refra...

What are the characteristics of commonly used refra...

Silica bricks are used more in glass melting furnaces, and the main component is silicon dioxide (SiO2). Silica bricks used in glass melting furnaces require a SiO2 content of more than 94%, a maximum operating temperature of about 1600~1650℃, and a den...

How to quickly identify the quality of high alumina...

How to quickly identify the quality of high alumina...

An excellent buyer or salesman can identify the good and bad of high-alumina refractory bricks only with more than ten years of "experience". So how exactly do they do it? In this issue, Zhengzhou Shennan Refractory Co., Ltd. will use practical experie...

$How to choose refractory bricks for glass melting f...$

How to choose refractory bricks for glass melting f...

The glass melting furnace is composed of different parts. When selecting refractory bricks for the glass furnace, we comprehensively consider the high temperature performance, chemical stability, thermal stability, volume stability and mechanical strength of...

$What are refractory bricks?...$

What are refractory bricks?...

This article will introduce you different types of refractory fire bricks and application of refractory bricks

$Top 10 most commonly used refractory materials for ...$

Top 10 most commonly used refractory materials for ...

High-quality refractory materials are not only consumable materials for modern high-temperature technologies, but also functional materials necessary for the realization of new high-temperature technologies. As a professional manufacturer of refractory mater...

$What’s the reason for the refractory brick falling...$

What’s the reason for the refractory brick falling...

Many cement companies have encountered the problem of newly-built refractory bricks falling during kiln drying: using professional maintenance teams, special tools, and high-quality refractory materials, but the newly-built refractory bricks are heating up ne...

Research on new technology of iron and steel smelti...

Research on new technology of iron and steel smelti...

Since the 1950s, steel has been one of the indispensable and important basic materials in China‘s economic construction and national economic development. The quantity of steel and the technology of steel smelting can always represent and show a country‘s...

$Development of refractory materials for cement kiln...$

Development of refractory materials for cement kiln...

Based on the consideration of environmental protection, in order to create chromium-free green refractory materials, through the active exploration and research of domestic manufacturers, the development process of chromium-free cement kiln refractories has b...

Experiences in reducing the investment of glass fur...

Experiences in reducing the investment of glass fur...

After the glass furnace is shut down and removed, a large amount of waste refractories will be produced. Disposal of it as garbage will not only pollute the environment, but also cost it very high. The rational reuse of refractory materials has always been ...

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