Technical Articles

What are the requirements for the use of high alumi...

What are the requirements for the use of high alumi...

There are certain requirements for high alumina bricks in the process of use. Now I will share with you what are the requirements for their use?...

What is the antifouling method of high alumina refr...

What is the antifouling method of high alumina refr...

When producing high alumina refractory bricks, antifouling should be done well. There are many antifouling technologies. The common one is waxing, but the effect is not very satisfactory. High and the technology is not mature enough, the most ideal is sili...

$Why are refractory bricks different colors?...$

Why are refractory bricks different colors?...

When refractory bricks are fired, if the operation method is improper, it is likely to cause uneven color and color difference. In addition to this reason, there is also a possibility that the temperature or operation method is not in place during the constr...

$What refractory material is used in the regenerator...$

What refractory material is used in the regenerator...

The function of refractory materials for hot blast stoves is to insulate heat and withstand high temperature loads. Therefore, when determining the material and thickness of furnace lining materials for various parts, it should be based on the temperature, l...

What is magnesia chrome brick?...

What is magnesia chrome brick?...

Magnesia-chrome brick is a refractory product composed of magnesia and chromium trioxide as the main components, and periclase and spinel as the main minerals. This type of brick has high refractoriness, high temperature strength, strong corrosion resistance...

$What is the thermal oxidation resistance of refract...$

What is the thermal oxidation resistance of refract...

Oxidation resistance refers to the ability of carbon-containing refractories to resist oxidation in a high-temperature oxidizing atmosphere. ...

What are the differences between lightweight high-a...

What are the differences between lightweight high-a...

High-alumina refractory bricks are refractory brick products produced by using alumina as raw material and through supporting production processes. For the different applications of high-alumina bricks in kilns, there are two types of products: light-weight ...

$What are acid-resistant refractory bricks？...$

What are acid-resistant refractory bricks？...

Acid-resistant refractory bricks are corrosion-resistant bricks made of silicon oxide as the main component, quartz, feldspar and clay as the main raw materials,and are made by high temperature oxidation and decomposition....

$Four lightweight insulation refractory bricks...$

Four lightweight insulation refractory bricks...

The raw materials used in lightweight refractory bricks can be divided into clay, siliceous, aluminum and mullite.

What are the factors that affect the properties of ...

What are the factors that affect the properties of ...

Alumina ultrafine powder and aluminate cement are the main factors affecting the refractory castability of corundum. Its own quality and dosage determine the properties of corundum castables....

What are the failure mechanisms of magnesia-chromiu...

What are the failure mechanisms of magnesia-chromiu...

Magnesium-chromium refractory is a refractory mainly composed of magnesia and supplemented by chromite. Depending on the process and raw materials, magnesia-chromium refractories form different degrees of secondary composite spinel and periclase-secondary sp...

$What are the alkaline refractory bricks? What is t...$

What are the alkaline refractory bricks? What is t...

In the refractory industry, refractory bricks with MgO as the main component and periclase as the main crystal phase are collectively referred to as basic refractory bricks. Alkaline refractory bricks are mainly used in thermal kilns for cement, glass, fer...

What are the combinations of magnesia chrome bricks...

What are the combinations of magnesia chrome bricks...

Magnesia chrome brick combined with electrofusion The fused magnesia-chrome brick is called fused magnesia-chrome brick. The high temperature performance is between the fused cast magnesia chrome brick and the sintered magnesia chrome brick, and its load so...

What is magnesia chrome brick?...

What is magnesia chrome brick?...

Magnesia-chrome brick is a kind of alkaline refractory product, Mgo contains: 55% -80%. Cr2O3 contains: 8% -20%, the main crystal phase is periclase and compound spinel XOY2O3, of which XO is mainly MgoFeO; Y2O3 is mainly Cr2O3.AI2O3.Fe2O...

What is magnesia zirconium brick?...

What is magnesia zirconium brick?...

Magnesia zirconium brick is a magnesia composite refractory material made of magnesia and zircon as the main raw materials. The main chemical components are MgO, ZrO2 and SiO2. The main mineral composition is periclase, olivine and baddeleyite....

How to check the quality of high alumina bricks?...

How to check the quality of high alumina bricks?...

11 manners to check the quality of high alumina bricks.

How to lay high alumina bricks?...

How to lay high alumina bricks?...

High-alumina brick linings are divided into four categories according to the size of the brick joints and the fineness of operation. The categories and the size of the brick joints are as follows: first class ≤ 0.5mm; second class ≤ 1mm; third class ≤ 2mm...

$What are the characteristics of high alumina refrac...$

What are the characteristics of high alumina refrac...

The fire resistance of high alumina bricks fluctuates greatly. The load softening temperature of high alumina bricks is generally greater than 1400 ℃. When the high alumina brick contains higher Al2O3, more mullite and corundum, its thermal conductivity ...

$What are the Characteristics of refractory bricks ...$

What are the Characteristics of refractory bricks ...

Refractory bricks must have the following five characteristics to be beneficial to the glass melting process: (1) The refractoriness of refractory bricks must be higher than the melting temperature of glass: (2) Do not cause glass defects such as stones, ...

$What is corundum refractory materials ?...$

What is corundum refractory materials ?...

Corundum refractory refers to products with Al2O3 content greater than 90%, also known as alumina refractory products. Corundum is very hard (Mohs hardness scale) and has a high melting point. These are closely related to the firmness of Al in the struc...

Copyright © 2019 HENAN SNR REFRACTORY CO.,LTD All Rights Reserved.

Web Design—Tiandixin