High alumina bricks are a commonly used refractory brick for furnace linings. Many customers always want to know how effective high alumina firebricks are in actual use when purchasing or using them. Topower refractory brick sales staff will tell you:
The actual use effect of high alumina refractory bricks in furnace lining is related to the quality of high alumina fire bricks, and quality is related to price. Therefore, the use effect mainly depends on the selected price.
1. The quality of high alumina bricks is divided into many types
The quality of high alumina fire bricks currently on the market is actually divided into many types. Why is there so many types of quality? Manufacturers produce based on price. Even if the physical and chemical indicators set by the manufacturer are used, they only refer to the main indicators to meet the main indicators. It's just an indicator. The higher the price, the better the quality. However, the messy market price determines the quality of the product to determine the use effect based on the price.
2. The market is cluttered and low-priced ones are given priority.
When the market is chaotic, the one with the lowest price will be given priority. As a result, some small and medium-sized enterprises of refractory materials have to focus on price as the main line of production in order to survive. For survival reasons, the principles of furnace lining temperature, atmosphere and reasonable selection have been disrupted. The quality of the selected products is too high to be sold. The one with the lowest bid wins the transaction, so winning the bid is the goal and survival is the goal. This leads to numerous levels of quality of high alumina bricks. It doesn't appear as level three, level two, level one, or special level at all. It is the aluminum content, bulk density, strength, load softening temperature, pores in the first grade, and various qualities of high aluminum bricks produced in various forms. By analogy, the second and third levels are also produced with different indicators, or only the main indicators are maintained. If they all meet the national standard requirements, the prices will be very different. In this way, the indicators and prices of high alumina bricks have become disordered products, and various quality products have emerged.
3. Determine quality based on price
There are many kinds of high alumina bricks in the first grade, and there are many kinds of quality in the second grade high alumina fire bricks, and even more in the three kinds. Therefore, the quality of high alumina refractory bricks on the market currently cannot be set at a unified price. It can only be determined by the price. Quality is maintained in the production market and usage situation.
In use, you cannot just listen to the quality of high alumina fire bricks. You cannot use quality to describe high aluminum bricks. At present, the most common method is to determine the price of high aluminum bricks based on aluminum content and density. In this regard, the actual use effect of high alumina bricks The effect can only be judged by the price. It cannot be determined by level and reasonable quality.
