In the construction industry, traditional reinforcement connection methods such as lap joints and welding connections cannot satisfy the rapid development of the construction industry in terms of connection quality, efficiency, and operability. The continuous updating of the steel conical thread coupler technology has led to further innovation in the entire industry and continuous advancement in technology. Therefore, the steel bar connection technology is quite successful in a certain sense, and has its own characteristics so that it can adapt to the ever-developing industry and social trends. The lap joint connection method can not be used for the connection of large-size steel bars, and welding has many shortcomings (such as unstable steel materials, poor weldability, etc.; unstable power supply or poor welder level; duration Tight, insufficient capacity; weather and climate effects such as wind and rain; construction plans for sites with high fire protection requirements; quality and speed of horizontal rebar connection.)
Welding quality cannot be guaranteed. The mechanical connection of steel bars can avoid the above difficulties and show obvious advantages. In the late 1980s, through the introduction of foreign advanced mechanical connection technology, coupled with the continuous efforts of relevant experts of some scientific research institutes in China, China’s reinforced mechanical connection technology has developed rapidly. The mechanical connection has undergone different stages of development such as sleeve cold extrusion, taper threading, upsetting straight thread up to the current rolling straight thread, and the technology has become mature and stable, and the cost has been continuously reduced.
In spite of this, China’s tapered thread connection technology still has a certain gap compared with foreign countries. One of the most prominent problems is that the pitch is single. The rebar from the diameter of 16 to 40 mm has a pitch of 2.5 mm, and the 2.5 mm pitch is best suited to a diameter of 22 mm. Reinforcement connection. Although there are still gaps in some areas, these gaps will be minimized as China’s steel sleeve production technology continues to mature.
Yida reinforced conical thread coupler has the following conditions:
1. There is no crack on the surface of the conical thread coupler and the threads are full and there are no other defects.
2. Qualified tooth profile inspection, check the dimensional accuracy with a straight thread plug gauge.
3. The outer surfaces of the conical thread couplers of various models and sizes must have obvious rebar levels and diameters.
4. The holes at both ends of the conical thread coupler must be sealed with a plastic cover to keep the interior clean and clean.
Yida reinforced steel sleeve/rebar straight thread has the following advantages:
1. It is not affected by many factors such as chemical composition of steel, human factors, climate, electricity, etc.;
2. It has no pollution, meets the requirements of environmental protection, and is safe and reliable without open fire operation;
3. A wide range of applications, applicable to a variety of orientation and the same, different diameter reinforcement connection;
4. High strength, stable and reliable quality;
5. Simple operation, construction speed.
In recent years, China has made tremendous progress in the connection technology of reinforcing steel machinery. Steel-reinforced conical thread couplers are widely used in major projects such as high-rise buildings, bridges, high-speed railways, nuclear power plants, and steel structures. Rebar connection sleeves are easy to operate, have no open flame, are safe and quick, and greatly save material resources and manpower. They are highly acclaimed both in China and internationally, and gradually replace the traditional rebar binding and welding technology.
HeBei YiDa reinforcing steel connection sleeve is widely used in large projects such as hong kong-zhuhai-macao bridge, fuqing nuclear power plant, beijing-shanghai high-speed railway and wuhan Greenland center.
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Post time: Apr-24-2018