Technical Articles

Technical Articles

What are the measures to prevent glass defects？...
What are the measures to prevent glass defects？...
It can be known from the types and causes of various glass defects that in order to prevent various defects, effective measures must be taken in various aspects such as glass composition, batch preparation, melting system, selection of glass furnace refractor...
2022-08-16 217
What are checker bricks?
What are checker bricks?
The regenerator is the main body of the hot blast stove for heat exchange, and it is made of checkered bricks. The surface of the refractory brick is the heating surface of the regenerator, and the checker brick is the medium for storing heat. The character...
2022-08-15 219
Analysis of Damage Causes of Clay Bricks for G...
Analysis of Damage Causes of Clay Bricks for G...
When the clay brick for glass kiln is in contact with the molten glass at high temperature, the surface of the brick body is initially infiltrated by molten glass. After that, due to the action of the capillary, the molten glass is sucked into the pores of t...
2022-08-11 219
What is the production process of magnesia brick?...
What is the production process of magnesia brick?...
The production process of magnesia bricks is the basis for the production of magnesia refractories and even basic refractories. The production process of high-purity magnesia bricks and direct-bonded magnesia-chrome bricks is similar, but the parameters such...
2022-08-10 222
Properties and use of mullite refractory bricks...
Properties and use of mullite refractory bricks...
The refractory bricks made of sintered or fused mullite as the main raw material can be all mullite, partly mullite and partly corundum. The former is called mullite refractory brick, and the latter is called corundum-mullite refractory brick or corundum mul...
2022-08-09 222
Which kilns are magnesia refractory bricks used in?...
Which kilns are magnesia refractory bricks used in?...
China is a country rich in magnesite resources, and the ore is well-known for its excellent quality. The vast coastline and salt lakes also have bright prospects for extracting magnesium oxide. Therefore, it provides unique conditions for the development of...
2022-08-08 223
Types and uses of alkaline refractory bricks...
Types and uses of alkaline refractory bricks...
4. Magnesia brick ①Refractoriness and softening point under load are all high, but high temperature mechanical strength is low; ②It is strongly alkaline, and has considerable corrosion resistance to alkaline slag; ③Poor thermal stability and weak resist...
2022-08-05 223
What is high siliceous clay brick?...
What is high siliceous clay brick?...
The main raw materials of high siliceous clay bricks are barren clay (calcined hard clay, kaolin or pyrophyllite) and natural quartz sand. The content of SiO2 in the prepared material is more than 65%, and the content of Al2O3+TiO2 is more than 30%. A...
2022-08-03 226
What is creep of refractory materials?...
What is creep of refractory materials?...
Refractory materials, especially at high temperatures, will undergo plastic deformation under a certain stress lower than their ultimate strength, and the amount of deformation increases with the extension of the load time, and even leads to material damage. ...
2022-07-29 226
Selection of refractory materials for all-oxygen gl...
Selection of refractory materials for all-oxygen gl...
According to the requirements of the furnace design for the synchronous loss of refractory bricks, the corrosion damage of each part of the furnace should be basically similar at the end of the kiln period to achieve economical and reasonable results. The la...
2022-07-28 228
What are the standards for refractory materials for...
What are the standards for refractory materials for...
With the continuous development of new refractory materials, the quality of refractory materials has been continuously improved, which has enabled the glass industry to achieve excellent results in high-temperature enhanced melting technology....
2022-07-27 226
What is high alumina brick? What is the grade stan...
What is high alumina brick? What is the grade stan...
High-alumina brick is a kind of shaped refractory material in refractory brick products. It is made of refractory clay or other refractory raw materials. It belongs to silicon-alumina series products. Clay bricks, magnesia bricks, corundum bricks, mullite ...
2022-07-26 230
Why China exports a lot of refractory materials？...
Why China exports a lot of refractory materials？...
Under the strong pull of market demand, China‘s refractory industry has developed rapidly, the production technology and technical level have been continuously improved, and the product quality has also continued to improve. The type and total amount of re...
2022-07-25 229
What is the difference between refractory spray coa...
What is the difference between refractory spray coa...
Refractory spray coatings and repairing materials are important varieties of unshaped refractory materials. They are a material that has developed rapidly in the past ten years. In kilns and thermal equipment, the material can be used for spraying new linin...
2022-07-22 230
What are the masonry requirements for furnace botto...
What are the masonry requirements for furnace botto...
Before building the bottom of the furnace, the foundation should be leveled in advance. If necessary, it should be leveled with brick processing on the bottom layer. Before building the bottom of the reverse arch, use the template to identify the base surfa...
2022-07-21 232
What are the materials of high alumina checker bric...
What are the materials of high alumina checker bric...
As a special type of refractory brick, checkered bricks are excellent in heat storage and heat insulation because of their special structure. However, checkered bricks are not the same. The situation requires the selection of bricks made of different materi...
2022-07-20 234
Eight characteristics of lightweight refractory bri...
Eight characteristics of lightweight refractory bri...
1. Light capacity: the dry capacity of lightweight refractory brick is only 500-700Kg/m*3, which is 1/4 of ordinary concrete, 1/3 of clay, and 1/2 of hollow block, because its bulk density is smaller than that of water , commonly known as aerated concrete fl...
2022-07-19 235
What are the main types of physical erosion of glas...
What are the main types of physical erosion of glas...
The service life of refractory materials is mainly affected by erosion conditions in addition to the performance of refractory materials. When the same refractory material is used in different parts, the erosion conditions are different, so the use effect is...
2022-07-18 236
What is the reason for the erosion of the refractor...
What is the reason for the erosion of the refractor...
The service life of refractory materials is mainly affected by erosion conditions in addition to the performance of refractory materials. When the same refractory material is used in different parts, the erosion conditions are different, so the use effect is...
2022-07-15 238
What is sillimanite large brick for glass kiln？...
What is sillimanite large brick for glass kiln？...
sillimanite is a natural high-grade refractory mineral, which has the characteristics of low thermal expansion rate, resistance to corrosion of metallurgical slag and various glass liquids, and good high temperature wear resistance. Its physical and chemical ...
2022-07-14 239
Copyright © 2019 HENAN SNR REFRACTORY CO.,LTD All Rights Reserved.