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目前显示的是 四月, 2025的博文

Technical Features of Steel Bar Connection Sleeves in Construction

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In construction,   steel bar connection sleeves   are essential for the connection of grade II and grade III steel bars in any direction and position. However, ensuring the quality of welding can be a challenge. The technical characteristics of steel bar connection sleeves include: 1. Steel bar connection sleeves suit for connecting steel bars in various reinforced concrete structures that bear bi-directional tension and compression forces during construction. 2. Material and energy-saving, not restricted by the composition and type of steel bars. 3. Capable of full-range connection. Mechanical connection has evolved through different stages such as cold extrusion, tapered threads, upsetting coarse straight threads, and the current rolling straight threads, with technology becoming increasingly mature and stable, leading to continuous cost reduction. 4. Can be prefabricated, allowing for factory operations without affecting construction schedules, enabling all-weather construc...

How Many Levels are there for Rebar Coupler

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Rebar couplers   are classified into several grades according to their quality and performance. The main grades include: 1. Standard Grade Rebar Couplers: These couplers are manufactured according to national construction industry standards, ensuring reliable quality and stable performance. They are made of common steel materials such as HRB400 grade hot-rolled ribbed steel bars and are suitable for general construction projects. 2. High Strength Grade Rebar Couplers: Couplers in this grade have higher tensile strength and toughness, which maks them good for projects that require higher structural integrity. Often, they utilize HRB500 grade hot-rolled ribbed steel bars or other kind of high-strength steel materials. 3. Ultra-High Strength Grade Rebar Couplers: Couplers in this grade have much better higher tensile strength and toughness, making them ideal for special high-capacity engineering projects such as large-span structures and high-rise buildings. 4. Special Purpose Grade R...

The Difference Between Threaded Rebar Coupler and Cold Extrusion Rebar Coupler

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In the current booming stage of China's construction industry, there are various types of building structures, which pose higher demands on steel connections. Among the mechanical methods of steel connection,   threaded rebar coupler   connection and   cold extrusion rebar coupler   connection are two common methods. So, what are the differences between them? In terms of the connection method, threaded rebar coupler connection involves cutting off the longitudinal and transverse ribs at the end of the rebar, then rolling them into straight threads, and finally using a coupler to connect the rebars together. This connection method is simple and fast to operate, with high connection strength and fast construction speed. On the other hand, cold extrusion rebar coupler connection involves inserting the end of the rebar into a special steel sleeve, compressing the sleeve with an extrusion machine to induce plastic deformation, thus achieving rebar connection through the m...

Standard Length of Straight Threaded Rebar Coupler in Construction Industry

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In the construction industry, there are various forms of   steel reinforcement connections , such as welding connections, sleeve extrusion connections, and straight threaded rebar coupler connections. Among them, the straight threaded rebar coupler connection method belongs to a type of mechanical connection, which improves some shortcomings of other connection methods and has a wide range of applications. The straight threaded rebar coupler connection technology involves processing the end of the steel reinforcement into straight threads, and then screwing two threaded ends into a coupler to tightly interlock at the center, resulting in a high connection strength. The length of the straight threaded rebar coupler is a crucial factor that influences the qualification rate of the coupler. In order to avoid quality issues during the usage of straight threaded rebar couplers, the national standards specify the following length standards: φ16--40mm, φ18--45mm, φ20--50mm, φ22--55mm, φ25...

A Comprehensive Guide to Selecting Rebar Coupler

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Rebar couplers   are common and essential building material accessories that are widely used in construction structures. This article will delve into a comprehensive guide to selecting rebar couplers to help you better understand and choose the right rebar couplers for your engineering projects. Guide to Selecting Rebar Couplers 1. Material Selection: The material of rebar couplers directly affects their load-bearing capacity and durability. In general, rebar couplers made of carbon steel that have good strength and corrosion resistance, making them a common choice. If used in corrosive environments, galvanized rebar couplers can be selected to enhance their corrosion resistance. 2. Size matching: It is very important to choose the right size of rebar coupler, which should match the diameter of the rebar to ensure that the rebar can be tightly installed in it. Too big or too small size will affect the stability and force transmission effect of the coupler. 3. Quality Certification:...