What Are The Uses Of Welded Steel Pipes
Welded steel pipe, also known as straight seam welded pipe, straight seam steel pipe or galvanized steel pipe, is a kind of steel pipe subdivided according to the production mode of steel pipe.
The well-known production method is to curl the pressed steel sheet into a tubular shape. The welded joint is made at the curved joint. The most obvious feature of this type of steel pipe is that the surface is visible weld seams. So what are the common uses of such welded steel pipes?
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The first is the same fluid transport as other steel pipes, but due to the special welded joints of welded steel pipes, the welded steel pipes are mostly transported with low-pressure fluids, such as hot water pipeline transportation, gas transportation and industrial production steam transportation for residents.
Wait. Not only the welding process affects the actual steel pipe use and transportation of the goods, the steel plate selected for the steel pipe also determines the use of the welded steel pipe. For example, steel pipes for gas transmission and steel pipes for wind pressure in mining engineering.As well as the drainage pipe, the Q235B pipe which is different from the fluid transportation such as water is generally selected.
Of course, for tubular transport paths, the relationship between the size of the diameter and its use is also great, and the large diameter type of welded steel pipes is more widely transported in urban sewage transportation. Smaller diameter welded steel pipes are used to blow oxygen to steelmaking.
The thickness of steel plates for producing welded steel pipes varies greatly. Usually, welded steel pipes produced by thin plates are widely used in children's toys, home lighting lamps and art deco lamps. In addition, thin steel pipes that have been galvanized on the surface of steel pipes are also used in structural power distribution and concrete works.
Of course, not all steel pipes can be used as they are, and they require a relatively tight bending test. Because the bending test is also one of the factors that determine the use of steel pipes.
According to different welding methods, it can be divided into arc welded pipe, high frequency or low frequency electric resistance welded pipe, gas welded pipe, furnace welded pipe, Bondi pipe and so on.
Electric welded steel pipe: used in oil drilling and machinery manufacturing.
Furnace welded pipe: It can be used as water gas pipe, etc., large diameter straight seam welded pipe is used for high pressure oil and gas transportation, etc. Spiral welded pipe is used for oil and gas transportation, pipe pile and pier.
When the Ni-containing welded steel pipe contains Ni, the corrosion resistance is strong in an acidic environment.
In the environment containing sulfuric acid or hydrochloric acid, the higher the content of Ni in the T-welded steel pipe, the stronger the corrosion resistance. In the general environment, it is only necessary to add Cr to the T-welded steel pipe to prevent corrosion.
In the production of T-welded steel pipes, there are many factors influencing the wrong side.
In the production practice, the steel pipe is often downgraded by the dry and wrong side. Therefore, it is necessary to analyze the causes of the wrong side of spiral steel pipe and its preventive measures.
The planned "West-East Gas Pipeline" pipeline project is carried out by means of dry-support and supporting construction. The scale of pipeline gas transmission is designed to be 12 billion cubic meters per year.
The investment forecast for the first phase of the project is 120 billion yuan, and the total investment in upstream gas field development, main pipeline laying and urban pipe network exceeds 300 billion yuan. The project started in 2000-2001 and was completed in 2007.
It is the natural gas pipeline with the longest distance, the largest diameter, the largest investment, the largest gas transmission and the most complicated construction conditions in China. Implementation of the West-East Gas Pipeline Project, the West-East Gas Pipeline
West-East Gas Pipeline
It is conducive to promoting the adjustment of China's energy structure and industrial structure, promoting the common development of the economy in the eastern, central and western regions, improving the quality of life of people along the pipeline, tour trương gia giới and effectively controlling air pollution. The implementation of this project has created conditions for the development of the western region and the transformation of the resource advantages of the western region into economic advantages, which is of great strategic significance for promoting and accelerating the economic development of Xinjiang and the western regions.
The first and second line projects of the West-East Gas Pipeline project have invested more than 290 billion yuan, which is not only the largest investment in energy projects in the past ten years, but also the largest investment in infrastructure projects; the first and second-line projects are combined with overseas pipelines and the length is reached.
More than 15,000 kilometers, this is not only the longest pipeline project in China and the world; the areas that the West-East Gas Transmission Project traverses include Xinjiang, Gansu, Ningxia, Shaanxi, Henan, Hubei, Jiangxi, Hunan, Guangdong, Guangxi, Zhejiang, kynghidongduong.vn and Shanghai.
The Jiangsu, Shandong and Hong Kong Special Administrative Regions, tour trương gia giới which benefit more than 400 million people, are the most accessible infrastructure projects.
The entry of natural gas into thousands of households not only saves the people the trouble of burning coal, burning wood and changing gas tanks, but also is of great significance for improving the quality of the environment.
Only by calculating the amount of natural gas delivered annually by the first and second line projects, it is possible to burn less than 12 million tons of coal, reduce carbon dioxide emissions by 200 million tons, and reduce sulfur dioxide emissions by 2.26 million tons.
I am lvy Lee, I am a technical writer and a digital marketing manager at Permanent Steel Manufacturing Co.,Ltd.
