Changsha DLADTO Rebar Splice Co., Ltd

Generally, the connection of reinforcing cages in road and bridge pile foundations is use   threaded rebar couplers   and   upsetting forged rebar coupler . When using threaded rebar couplers, one end of the steel bar needs to be processed into a threaded end that is longer than the coupler length. The coupler and lock nut are then screwed onto the extended threads. After aligning two reinforcing cages, the coupler is rotated downward to connect the two cages. The advantage of this connection method is that it is easy to construct, but the disadvantage is that there are exposed threaded ends. Another connection method is using upsetting forged rebar coupler. In this method, the end of the steel bar is first enlarged using a steel bar enlarging machine and then threaded using a steel bar threading machine. This method requires a larger investment and much labor, but provides a better connection effect.

The raw material of the   steel reinforcing bar coupler   is 45# carbon structural steel. It is determines that if the steel reinforcing bar scoupler comes into contact with water, it will rust within a few minutes. However, rusted steel reinforcing bar couplers will seriously affect the quality of the project. Therefore, preventing rust in steel reinforcing bar couplers is an important process in the production of steel reinforcing bar couplers. There are five main reasons for the rusting of steel reinforcing bar couplers: 1. Poor quality of cutting fluid During the process in the production of steel reinforcing bar couplers, cutting fluid is used. The fluid is a water-soluble oil with certain rust removal and rust prevention functions. If the quality of the cutting fluid is poor and the concentration is low, the steel reinforcing bar sleeves should not be stored for a long time, as they are prone to rust. 2. Poor quality of packaging bags The packaging bag for steel reinforcing coupl

Upsetting forged rebar coupler   is used to connect two reinforcing bars through the forging process. The connection technique not only provides strong mechanical performance but also ensures reliability and durability of the connection. The features of upsetting forged rebar coupler are as follows: High strength: Through upset forging, the strength of the rebar coupler is significantly increased, enabling it to bear greater loads and improve the overall load-carrying capacity of the structure. Precision: The dimensions and shape of the coupler can be precisely controlled through the forging process, ensuring a tight fit with the reinforcing bars. It makes the connection much secure and effectively prevents loosening or failure. High toughness: Upsetting forged rebar coupler possesses good plasticity and toughness, maintaining consistent performance in complex structural stress environments. This allows the coupler to adapt to various engineering requirements for design flexibility. A

Reverse threads are used in   rebar couplers   to ensure that the connection remains tight and prevents the heads from loosening or falling off. Reverse thread couplers are suitable for positions where the rebar cannot rotate, and left and right-handed thread couplers can be used for the connection. In this type of connection, one end of the coupler and the corresponding rebar thread are both processed with left-hand threads. When connecting, the left and right-handed thread heads correspond to the left and right-handed threads of the coupler, and rotating the coupler will bring the rebar ends closer and screw them into the connection, allowing for a quick and convenient connection. In this  article, I will provide some considerations for processing the rebar threads. Processing of rebar thread heads 1. Adjust the trial bar according to the specifications of the rebar to ensure that the minimum size of the inner hole of the thread head meets the requirements. 2. Replace the stretching

Assembly process of   cold extrusion steel sleeve :  During the entire application process of cold extrusion steel sleeve, attention must be paid to the installation matters in order to avoid unnecessary process problems and thus jeopardize the product quality of the threaded reinforcement bars. 1. Placement of construction reinforcement bars: Move the construction reinforcement bars that meet the standard to the construction site and wait for connection. 2. Tighten the connecting head: Use the construction reinforcement bar sleeve wrench to tighten the connecting sleeve according to the specification. 3. Identification: Mark the tightened sleeve specification and separate it from the sleeve specifications that have not been tightened. 4. Inspection of engineering construction: Perform quality inspection on the completed connection points. 5. Bundle the cold extrusion steel sleeve with other construction reinforcement bars.