Supply of rolling straight thread steel joints, to ensure quality.

Reinforced mechanical connection sleeve several methods Analysis of a reinforced pressed sleeve connection? Reinforced pressed sleeve connection is to be connected to a steel tip to insert a high-quality steel sleeve, then extruder side the number of channels to pressure the sleeve after plastic deformation and ribbed steel bars close engagement to achieve the purpose of the connection. Advantages reinforced pressed sleeve connection is a high joint strength, stable and reliable quality, safe, no fire, not climate; adaptability, can be used for vertical, horizontal, inclined, reinforced all places of high altitude, underwater connection, Also particularly suitable for non-welded steel, reinforced connections into the mortar. The disadvantage is that heavy equipment, large labor intensity, connection slower than threaded connections, large sleeves, higher costs than the threaded connection. Second, the steel taper thread taper thread connecting steel sleeve connection technology with taper thread threading machine will first be processed into steel tip tapered thread, then with tapered threaded steel sleeve to be docked together. It must be applied to the steel sleeve connection with certain tightening torque to ensure the quality of the connection. Steel taper threaded connection operating process is simple, fast, wide application, the climate, and be welcomed construction units. But tapered nipple damage occurred at the joints, taper thread quality is poor if the scene processing, leak or twist the tightening torque allowed, threaded loose and so has a great influence on the joint strength and deformation. Therefore, we must pay attention to taper threaded joint site inspection, strict implementation of industry standards that must be randomly selected specimens from the site inspection provisions of engineering structures, it must not be used in the form of examination of evidence or sending samples Specimen joint strength level as a decision in accordance with. Third, the steel rolling straight thread connecting steel rolling straight screwed steel rolling straight thread connection and reinforcing steel bar rolling straight thread connecting the two. Steel rolling straight thread connecting the two ends of steel roller mills use direct rolling out threads, and then make steel straight thread sleeve connected together an advanced mechanical connection technology) and reinforcing steel bar rolling straight thread connection First steel directly after stripping rib rolling straight into thread, then make steel straight thread sleeve connected together an advanced mechanical connection technology. This technique is simple, less processing step, rolling filaments round working life, the joint is stable and reliable, convenient construction, the thread type, high precision, no false thread, reliable and stable connection quality characteristics. Fourth, reinforced upsetting straight thread connection with the development of the construction industry, high-rise buildings, large span, increasing the special structure, construction steel applied to large diameter, closely spaced, high-strength direction, simply using the traditional steel connection technology, such as lap banding, lap arc welding, flash butt welding, pressure welding, etc. has been difficult to meet their needs. Then China began to promote the use of reinforced mechanical connection technology, the main representative methods are pressed sleeve connection and taper threaded connections. In recent years, the application of reinforced mechanical connection technology has been developing rapidly. At present, steel pressed sleeve connection and tapered thread connection technology has been listed as one of the Ministry of Construction focus on the promotion of construction "during the" 10 new technologies into the national key projects to promote. Hebei Sequoia enterprises to use new technology, new methods, greatly improves the safety of the product, users can be assured