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  • Introduction to the method of measuring the inner diameter and aperture of precision steel pipes

    Introduction to the method of measuring the inner diameter and aperture of precision steel pipes

    For the measurement of the diameter of the inner hole of steel pipes, precision steel pipes, and some mechanical parts, there are measurement methods such as direct measurement, indirect measurement, and comprehensive measurement. First, direct measurement: the most commonly used measurement meth...
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  • What are the types of heat treatments for stainless steel welded steel pipes

    What are the types of heat treatments for stainless steel welded steel pipes

    During the production process of stainless steel welded steel pipes, intermediate heat treatment, and finished product heat treatment can be carried out. Because a bright surface without oxidation can be obtained, the traditional pickling process is eliminated. The use of this heat treatment proc...
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  • What environments are large-diameter steel pipe suitable for

    What environments are large-diameter steel pipe suitable for

    1. Petrochemical: crude oil, refined oil, petrochemical raw materials, and finished product transportation pipes and oil field pipeline networks. 2. Natural gas: submarine and onshore long-distance pipelines; gas receiving station gas transmission pipelines; gas fields and urban natural gas pipel...
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  • What is the heat treatment of stainless steel pipe fittings

    What is the heat treatment of stainless steel pipe fittings

    There are many types of heat treatments for stainless steel pipe fittings, including solution treatment, stabilization treatment, stress relief treatment, and weld heat treatment. 1. Solution treatment is to heat stainless steel pipe fittings to the austenite zone to fully dissolve chromium and o...
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  • Anti-rust issues of industrial hot-dip galvanized steel pipes

    Anti-rust issues of industrial hot-dip galvanized steel pipes

    As a common steel product, hot-dip galvanized steel pipe is widely used in many fields such as construction, chemical industry, and machinery. However, steel will inevitably be affected by factors such as oxidation and corrosion during use, thus affecting its performance and service life. First, ...
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  • Analysis of factors affecting the process of high-frequency straight seam welded pipe

    Analysis of factors affecting the process of high-frequency straight seam welded pipe

    The main process parameters of high-frequency straight seam welded pipes include welding heat input, welding pressure, welding speed, opening angle size, the position and size of the induction coil, the position of the resistor, etc. These parameters have a great impact on improving the quality o...
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  • Forged flange production process

    Forged flange production process

    The forging process generally consists of the following steps, namely, selecting high-quality steel billets for blanking, heating, forming, and cooling after forging. The forging process methods include free forging, die forging, and membrane forging. During production, different forging methods ...
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  • How to judge the quality of industrial galvanized steel pipes

    How to judge the quality of industrial galvanized steel pipes

    Galvanized steel pipe is a kind of pipe widely used in construction, engineering, and industrial fields. It has the characteristics of anti-corrosion and strong durability. However, there are galvanized steel pipes of varying quality on the market. Therefore, judging the quality of galvanized ste...
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  • Characteristics and structure of industrial large-diameter reinforced 3PE anti-corrosion steel pipes

    Characteristics and structure of industrial large-diameter reinforced 3PE anti-corrosion steel pipes

    Features of reinforced 3PE anti-corrosion steel pipe: 1. The corrosion-resistant coating has high adhesion strength, impact resistance, and strong frictional resistance to cathode detachment. 2. The thick and smooth coating surface can prevent the growth of microorganisms and scale. 3. The transp...
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  • The correct way to store spiral steel pipes

    The correct way to store spiral steel pipes

    Perhaps you have never paid attention to such details. To store spiral steel pipes, you must choose a suitable site and warehouse. 1) The site or warehouse where spiral steel pipe products are stored should be located in a clean and well-drained place, away from factories and mines that produce h...
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  • What are the connection methods for industrial seamless steel pipes

    What are the connection methods for industrial seamless steel pipes

    ①Compression type: Insert the pipe into the nozzle of the pipe fitting, tighten it with a nut, and use spiral force to compress the casing at the nozzle through the sealing ring to act as a seal and complete the connection of the pipes. ②Welding type: The end of the pipe is grooved, and the pipe ...
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  • Process, characteristics, and applications of DN600 large diameter anti-corrosion spiral steel pipe

    Process, characteristics, and applications of DN600 large diameter anti-corrosion spiral steel pipe

    In today’s industrial field, DN600 large-diameter anti-corrosion spiral steel pipe is an important pipeline material and is widely used in petroleum, chemical industry, water treatment, and other fields. First, the manufacturing process of DN600 large-diameter anti-corrosion spiral steel pi...
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