Tips for Selecting High-quality and Inexpensive Refractory Bricks


Release Time:

2023-02-06

1. To inquire about the price of refractory bricks, it is necessary to explain the material of the required refractory bricks to the manufacturer by telephone or fax. Generally, refractory bricks are mainly divided into: high aluminum refractory brick, clay refractory brick, lightweight refractory brick, magnesium-chromium brick, fusion cast brick, and silicon brick.

I. How to buy high-quality and inexpensive refractory bricks 

 

1. To inquire about the price of refractory bricks, it is necessary to explain the material of the required refractory bricks to the manufacturer by telephone or fax. Generally, refractory bricks are mainly divided into: high aluminum refractory brick, clay refractory brick, lightweight refractory brick, magnesium-chromium brick, fusion cast brick, and silicon brick. 

2. It is necessary to explain the level of the required refractory bricks; for example, high aluminum refractory bricks are divided into: Level 1 refractory brick, level 2 refractory brick, and level 3 refractory brick. 

3. It is necessary to specify the specifications and dimensions of refractory bricks, which are usually sent in the form of drawings. General refractory bricks are always available from manufacturers, but special-shaped refractory bricks need to be customized. 

4. Quantity is also one of the factors that affect the price of refractory bricks. The mold for producing refractory bricks costs usually several thousand or even tens of thousands, and if a large number of refractory bricks are ordered, the production costs of the manufacturer will also be reduced. 

5. Querying the price of refractory bricks cannot only allow the buyer to compare the bricks from the price but also from the appearance, size, content, unit weight and other factors of refractory bricks. For example, the price of a common clay brick is from 500 yuan/ton to 800 yuan/ton. The most famous place producing refractory bricks in China is Xinmi City, where the price of clay refractory brick is more expensive than that in other places, but have better quality and technology than other places. 

 

II. How to identify the quality of refractory bricks 

1. The proportion of impurities in refractory bricks. Generally speaking, there is no problem with the generation of impurities during the sintering process of refractory bricks strictly according to the proportion of ingredients. However, some manufacturers usually do not produce according to the proportion of materials used, resulting in sintered refractory bricks without a hard structure, resulting in poor quality of sintered bricks, and finally deceive consumers with high prices. 

2. When you buy refractory bricks, you can check them through their surfaces. Generally, the surface of refractory bricks with high impurity content will be very rough, while those with standard quality have uniform overall color and smooth and flat surface, which is intuitively discernible from the surface. 

3. The refractory brick sintering experiment, which is the most effective identification method. When we purchase refractory bricks, we usually go to the manufacturer to have a look. Especially before we decide to purchase, we must have the manufacturer conduct a high-temperature test to verify whether the sintering index of the refractory bricks is the same as the standard index. As long as the test results do not deviate significantly, then the quality of the brick body is still satisfactory, which is also a good method. If you have questions about the first method, you can use the second method for testing.