Why is the tile more white and hurt people? In order to please consumers, tiles must be "whitening!" Liang Yiliu, director of the inspection office of the Guangdong Provincial Technical Supervision Quality Supervision and Inspection Station, said that zirconium-containing materials such as zirconium silicate and zirconia can play a role in whitening the product, so many manufacturers added zirconium raw materials to the formulation. . Zirconium silicate has not been incorporated into the country's banned radioactive materials, but individual companies only care about whitening products. Too much zirconium raw material is added to the formula, which will cause some harm to people. Tiles are less radioactive than natural stone? It is not that natural stone has radioactive material, which will increase the prevalence of diseases such as leukemia. How can we even have problems with ceramic tiles? “This is just a business mislead the consumer.†Liang took a sharp shot: “The ceramic tile composition can be controlled manually. The natural stone cannot be changed. The radioactive material contained in individual granite is indeed higher, but if the ceramic tile composition is not well controlled, it is also High risk." Reveal the manufacturer's choice of raw materials for zirconium Is there a high safety material to replace zirconium silicate? Liang Yiliu said that high brightness whitewashing mud also has a "whitening" function. Only the current washing mud has not yet been popularized. Liang Yiliu explained that the price of scouring mud is cheaper than that of zirconium silicate, but it may be that 1% of zirconium silicate can achieve the purpose of whitening, and washing mud needs 10% to receive the same effect. The amount of mud to be panned is large, and the process of scouring the mud is complicated. Calculated in this way, the use of washing mud will cause the cost of the tile to soar. Liang Yiliu repeatedly reminded, "In the choice of economic efficiency and social responsibility, businesses should have basic moral and conscience." Higher tile containing zirconium than ordinary Consumers should stand up to defend their rights and give businesses certain restrictions. Due to the use of alternative scouring mud, it is now difficult to simply look at the appearance. If consumers are skeptical about the presence of radioactive material contained in tiles, one to two kilogram tiles can be used for testing. However, because of the need to pay, few consumers will do so. It is more practical to ask the dealer for the product's radioactivity test report and use more glazed tiles. Liang explained the flow because the glazed tile is just the surface layer and there are fewer radioactive materials than polished tiles. Many people believe that the quality of ceramic tiles produced by large manufacturers is guaranteed. Liang Yiliu said frankly: “Some major manufacturers produce high-grade ceramic tiles that may use zirconium silicate.†The price is not cheap, small factories use ordinary sand and gravel to make tiles, but less radioactive material. In order to make more styles, brand-name manufacturers will use zirconium silicate for unique effects. †However, consumers do not need to be overly nervous. In recent years, with the high attention of the state and society, in the last random inspection in December last year, as many as 95% of the products met the national standards. Tile entrance decoration indoor decoration formaldehyde high-grade tile ceramic tile prices Valves are found in virtually every industrial process, including water and sewage processing, mining, power generation, processing of oil, gas and petroleum, food manufacturing, chemical and plastic manufacturing and many other fields. Stop Valves, Ball Cock, Angle Valves, Gate Valves, Check Valves ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsirvalves.com
People in developed nations use valves in their daily lives, including plumbing valves, such as taps for tap water, gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and poppet valves in car engines.
In nature there are valves, for example one-way valves in veins controlling the blood circulation, and heart valves controlling the flow of blood in the chambers of the heart and maintaining the correct pumping action.
Valves may be operated manually, either by a handle, lever, pedal or wheel. Valves may also be automatic, driven by changes in pressure, temperature, or flow. These changes may act upon a diaphragm or a piston which in turn activates the valve, examples of this type of valve found commonly are safety valves fitted to hot water systems or boilers.
More complex control systems using valves requiring automatic control based on an external input (i.e., regulating flow through a pipe to a changing set point) require an actuator. An actuator will stroke the valve depending on its input and set-up, allowing the valve to be positioned accurately, and allowing control over a variety of requirements.
The more white the tiles, the more wounded people reveal the choice of raw materials manufacturers insider
Mr. Feng calls and has moved into a new home since the year before. His daughter has continued to experience a series of symptoms such as nausea, chest tightness, astringent eyes and vomiting. Go to the hospital and check the cause. Mr. Feng saw the newspaper’s report on indoor pollution and immediately wondered if it was decorated with unsafe materials. So he found a professional indoor environment testing personnel to carry out safety testing on his new home. To his surprise, the results did not detect levels of formaldehyde, benzene, etc. exceeded. However, the inspectors doubted the bright white tiles on Mr. Feng’s floor. After inspection, it was found that Mr. Feng’s tiles exceeded the national “Radioactive Nuclide Limits for Building Materials†standard. It turned out to be a catastrophe!