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Description of the use of stainless steel
Jan 29, 2018

Stainless steel products are dirty with the maintenance and cleaning of stainless steel, as well as other materials exposed to the atmosphere. Future lectures will analyze the design factors that affect the cost of maintenance and cleaning. However, there is a relationship between rainwater scour, artificial flushing and dirty surface. The effect of rainwater scouring is determined by placing the same slate directly in the atmosphere and in a place where there is a shed. The effect of artificial flushing is determined by scrubbing the soapy water manually on the right of each slate every six months. It was found that the removal of dust and deposition by rain scour and manual scrubbing had a good effect on the surface condition compared with the lath placed in the shed and not being washed. It is also found that the condition of surface processing is also affected, and the smooth surface of the slate is better than the rough surface of the surface. Therefore, the time interval between washing and washing is influenced by many factors, and the main factors are the aesthetic standards required. Although many stainless steel curtain walls are washed only when glass is cleaned, generally, the stainless steel used for external use is washed two times a year. Stainless steel is resistant to corrosive medium corrosion medium such as air, steam, water and other corrosion medium, such as acid, alkali, salt and so on. Also known as rust resistant acid steel. In practical applications, the steel that corroded the weak corrosion medium is often called stainless steel, and the steel which is resistant to chemical medium is called acid resistant steel. Because of the difference in chemical composition, the former is not necessarily corroded by chemical medium, while the latter generally has the same effect.
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Rust. The corrosion resistance of stainless steel depends on the alloy elements contained in the steel. Chromium is the basic element to obtain corrosion resistance of stainless steel. When the chromium content in steel reaches 12%, chromium will react with oxygen in corrosive medium to form a thin oxide film on the surface of steel, which can prevent further corrosion of steel matrix. In addition to chromium, the commonly used alloy elements are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc. to meet the requirements of various uses on the microstructure and properties of stainless steel. Stainless steel is usually divided into: (1) ferrite stainless steel. Chromium containing 12% ~ 30%. Its corrosion resistance, toughness and weldability are increased with the increase of chromium content, and the stress corrosion resistance of chlorides is better than that of other kinds of stainless steel. (2) austenitic stainless steel. Chromium containing more than 18%, also contains about 8% of nickel and a small amount of molybdenum, titanium, nitrogen and other elements. Good comprehensive performance, corrosion resistant variety of media. (3) AUSTENITIC FERRITIC duplex stainless steel. It also has the advantages of austenite and ferritic stainless steel and has superplasticity. Martensitic stainless steel. The strength is high, but the plasticity and weldability are poor. Stainless steel is a modern material with 60 years of development. Since the invention of stainless steel since the beginning of this century, stainless steel has integrated the image of modern materials and the excellent reputation in building applications, so that its competitors envy. Stainless steel will not produce corrosion, pitting, rust or wear, as long as the selection of steel is correct, the processing is appropriate, and the maintenance is appropriate. Stainless steel is one of the most powerful materials in metal materials for construction. As stainless steel has good corrosion resistance, it enables structural components to permanently maintain the integrity of the engineering design. Chromium containing stainless steel also sets mechanical strength and high extensibility in one body and is easy to make parts. It can meet the needs of architects and structural designers. In the industry of buildings, buildings and structures, the key to the success of stainless steel is that it has good corrosion resistance.
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