The purchase of tiles cannot rely on "love at first sight", because judging only from the aesthetic level will often ignore the intrinsic quality of the tiles. Once the quality is unqualified, it will result in the renovation of the project in the future. This is very inconspicuous.
Ethino tiles
First of all, pay attention to the three characteristics of the tile in the purchase of ceramic tiles, grasp these three degrees, there is a certain amount of quality assurance, the purchase of qualified products in a sense is the biggest money.
Wear resistance: This is an important standard for measuring the quality of tiles . It is generally divided into five degrees. 1 degree of wear resistance is poor, generally used to display walls and activities where there are few. The 2 degree wear resistance is slightly better and can be used in places where there is no hard friction such as in bathrooms and bedrooms. 3 degrees is a moderately wear-resistant ceramic tile that can be used in places where there is a lot of movement of people, such as living rooms and kitchens. The 4 degree is a high wear resistant tile that is ideally suited for use in residential halls and corridors and public areas when luxury furnishings. 5 degrees is a tile with high abrasion resistance, which is not necessary for home use. It is generally used in public places such as airport stations where there is a lot of traffic.
In addition, the water absorption of the tiles is also an important criterion. Tiles with high water absorption generally have small voids and relatively low density, whereas tiles with low water absorption have relatively high density. Wall tiles and floor tiles have different functions, so the required water absorption is different. In the living room, you should choose tiles with lower water absorption. Frequent activities may bring frequent pollution, and the loose brick holes are very Easily absorbs water and dirt, resulting in flaws that are not easily cleaned. The method of judging the water absorption rate of a tile is very simple. Just drop a drop of water on the back of the sample tile and observe if it can absorb quickly. Wall tiles can choose tiles with higher water absorption, and the ground should choose low water absorption, especially in the bathroom environment, the lower water absorption can also ensure that the tiles will not be over-expanded and deformed.
Hardness is also an important factor in the quality of tiles. High-quality tiles generally have high hardness, strong toughness, and are not easily broken. At the time of purchase, you can check the intrinsic quality of the tiles by tapping on the debris. Take two tiles and tap it. If the sound of the brick is crisp, with some metal sound, it shows that the inner quality is very good and the hardness is higher. If the sound is hoarse, there may be cracks in the brick and the hardness is not high. High hardness tiles are not prone to cracking and deformation after being laid for a long time.
At the same time, consumers need to pay attention to the acid and alkali resistance of ceramic tiles and chemical reagents while choosing ceramic tiles, because improper cleaning in future life may cause damage to tiles.
After consumers understand these specific data, the use of tiles can be clearly judged. Because of the different quality of tiles, hardness and wear resistance are different, the price is not the same, if consumers spend a big price, buy back high hardness The tiles are laid on the wall. This is not necessary. Choosing and using tiles properly will be the right way to save money.
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The full ceramic ball bearings listed below are supplied with rings and balls made from zirconium dioxide (ZrO2). These zirconia bearings are available as full complement (no cage) or with cages made from PTFE, PEEK or 316 stainless steel.
These are non magnetic, non-conductive and highly corrosion resistant to most chemicals although ZrO2 bearings are not recommended for prolonged contact with steam. Full complement bearings or those with a 316 stainless cage can be used up to 400°C while bearings with a PEEK or PTFE cage can cope with temperatures of up to 250°C. For temperatures below -70°C, PTFE or 316 stainless steel cages are preferred. Standard radial clearance for full ceramic bearings is C0 but other clearances can be supplied to order.
ZrO2 ceramic bearings are generally used for their extreme temperature capabilities, excellent corrosion resistance or non-magnetic properties. Other sizes can be supplied on request.
The Description of Ceramic Bearings:
Compared to steel, Ceramic ball Bearings have many specific advantages. They offer superior corrosion and heat resistance, higher dimensional stability, and lower density, which facilitate high speed. Ceramics are superior to steel in heat and corrosion resistance, and are lightweight and extremely hard as well. Consequently, ceramic rolling bearings can be used in environments where conventional steel bearings cannot. That is to say, the superiority of these bearings makes it possible that they can be applied in some special environments.
Firstly, they can be used in corrosive environments. Compared to stainless steel bearings, hybrid and all Ceramic Bearing lasted three and twenty times longer respectively. It is presumed that water readily adheres to silicon nitride and forms a better lubrication film, leading to extended bearing life.
Secondly, they can be performed in corrosive agents. Generally, silicon nitride has excellent corrosion resistance. However, corrosion resistance varies depending on the type and quantity of sintering additives, and certain corrosive agents decrease in hardness and flexural strength. In such situation, it is can be proved that the carbide-based ceramic bearings are the most effective.
Thirdly, they can be used in high-temperature vacuum. An all-silicon nitride Ball Bearing with a self-lubricating laminated cage (mainly composed of MoS2) and with MoS2-coated rings and balls proved superior in durability in a high-temperature vacuum environment. Compared with the hybrid bearings, the all-ceramic bearing was superior in both dynamic frictional torque and life.
Fourthly, they can be performed with poor lubrication. As ceramics are extremely hard and have outstanding wear resistance, they outperform other materials in bearing life without lubrication. According to a test, the steel bearing seized within a short period while the hybrid and all 627 Ceramic Bearings, though sustaining wear, did not. And the all-ceramic bearing sustained considerably less wear than the hybrid bearing, indicating that its endurance life is much longer.
Cermic Ball Bearing,Full Ceramic Bearing,Hybrid Ceramic Bearing,Self-Aligning Full Ceramic Ball Bearing
Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.longsbearings.com