In the building materials market, fake and inferior products can be described as invincible, especially ceramic tiles, which are difficult to distinguish between true and false. In this issue, the classroom provides five simple and easy-to-use methods to identify inferior tiles. Let’s take a look:
The first step: water absorption test water absorption rate
The water absorption rate reflects the density of the tile, and indirectly reflects the hardness of the tile, but one thing to note is that the tile is not as low as possible. The water absorption test here is a test for tiles in the living room, bedroom, walkway, etc. Imagine if the tiles in these places suck in the water, isn't the entire section getting wet? Pour the water On both sides of the tile, carefully observe the water penetration. If you buy polished tiles, the water is immediately sucked in, that is, buy inferior polished tiles.
Step 2: Pay attention to surface flatness
When many customers are preparing to buy ceramic tiles, they will specifically ask the customer service about the flatness. In fact, after the tile surface is laid up, there are two problems: one is that the decoration master is not home; the second is The quality of the tiles themselves. When the tile is not yet laid, it is recommended that you first look at the flatness of the tile surface. After confirming that it is correct, call the decoration master to start work.
The third step: corner straightness test
As mentioned in the previous step, the surface of the tile determines whether the effect of the paving is smooth, and the straightness test of the corners of the tile is to see if the overall layout of the tile is neat and the gap size is consistent. At this time, we pick up a few tiles and put them on the flat ground. Pay attention to see if the gap between the tiles and the tiles is the same. If the straightness of the corners is not regular, the tiles should not be neat, which is very important. The overall paving effect, we must pay attention to.
Step 4: Get smudges to investigate
This step mainly examines the stain resistance of tiles. It is important to know that tiles will accompany us for a long period of time. If it is not easy to clean if it is dirty, it is estimated that it will not be 3 to 4 years. Even if you don't want to stay in a dirty home, you can't wait to pick up the tiles immediately. In fact, it is very simple to do this anti-fouling test. You only need to write the words "Go here" on the surface of the tile. Wait for a while to see if it is easy to clean. If you leave ink, I suggest you still have another Choose a good one.
Step 5: Hard scraping test wear resistance
Nowadays, the tiles have undergone a series of innovations in the wear resistance. Whether it is polished tiles, microcrystalline stones, full-glazed glazes, antique bricks, etc., there is a qualitative leap, so we can judge whether the surface is wear-resistant or not. Just pick up the knife in your hand and scrape it on the surface of the tile to see if it will scrape off the glaze on the tile surface. If you can't bear such a small scratch, you can conclude that this tile is not A good partner who can stay with us for a long time. [Follow the WeChat public number " Jiuzheng Ceramics Network" ; pay attention to courtesy, scan code to send millions of business opportunities! Jiuzheng ceramics network exchange group: 80123558 】
Ferroalloys, a broadly defined ferroalloy is a product that is used as a deoxidizer, elemental additive, etc. in steelmaking to add iron to certain properties or to meet certain requirements.
Property: The main element of the ferroalloy generally has a high melting point, or its oxide is difficult to reduce, and it is difficult to refine the pure metal. If it is together with the iron, it is easier to reduce the smelting. The use of ferroalloys in iron and steel smelting, in which iron is not only harmless, but because of the fusing of molten steel is more favorable. Therefore, deoxidation and alloying in the steelmaking process are mostly added in the form of iron alloys. Iron alloys are generally brittle and cannot be used as metal materials.
Purpose: As a deoxidizer for steelmaking, silicon manganese, ferromanganese and ferrosilicon are the most widely used . As strong deoxidizers, aluminum (aluminum iron), silicon calcium, silicon zirconium, etc are used . Commonly used alloy additives are: ferromanganese, ferrochromium, ferrosilicon, ferrotungsten, ferromolybdenum, ferrovanadium, ferrotitanium, ferronickel, niobium (neodymium) iron, rare earth iron alloy, ferroboron, ferrophosphorus and so on. A variety of ferroalloys, in accordance with steelmaking needs, are regulated in many grades based on the content of alloying elements or the level of Carbon contained, and the impurity content is strictly limited. Ferroalloys containing two or more alloying elements are called composite ferroalloys. The use of such ferroalloys can add deoxidizing or alloying elements at the same time, which is beneficial to the steelmaking process and enables the more comprehensive and efficient utilization of symbiotic ore resources. Commonly used: manganese silicon, silicon calcium, silicon zirconium, silicon manganese aluminum, silicon manganese calcium and rare earth ferrosilicon.
Ferroalloys
Ferroalloys,Ferro Silicon,Ferro Tungsten,Different Shape Ferroalloys
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