The differences between rebar coupler

The advantages of the direct rolling straight threaded rebar coupler are: the thread processing is simple, the equipment investment is small, the disadvantage is that the thread accuracy is poor, and the false thread phenomenon exists. Due to the uneven thickness of the steel bars, large tolerances, and inconsistent thread diameters, the on-site construction is difficult, and the coupler and the thread head are inconsistent with the tightness, and some joints may be pulled off. Due to the change of the steel bar diameter and the influence of the transverse and longitudinal ribs, the service life of the rolling wheel is reduced, the additional cost of the joint is increased, and the vulnerable parts of the construction site are frequently replaced.


Rolling ribs and rolling straight threaded reabar coupler: This kind of connection joint uses special extrusion equipment to pre-flatten the transverse and longitudinal ribs of the steel bars, and then roll the threads, the purpose is to reduce the effect of ribs on the accuracy of formed threads.

Its characteristic is that the precision of forming thread is improved to a certain extent relative to direct rolling, but the influence of inconsistent steel bar diameter on the precision of forming thread is still not fundamentally solved, and thread processing requires two processes and two sets of equipment to complete.


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Tensile Strength Test of Rebar Coupler

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Rebar Coupler is designed to produce a full-strength mechanical joint between reinforcing bars. Today, I will share with you how to detect the tensile strength of the  rebar coupler . Let's get a close look. 1. Process Inspection Before and during the construction of the steel bar connection project, conduct a process inspection for each batch of incoming splices. There shall be no less than 3 splices of each type of steel bar during process inspection. The base material of the splice specimen shall be taken tensile strength test. 2. On-site Inspection The on-site inspection of splices shall be carried out according to the acceptance batch, and the joints of the same grade, type, and specification of the same batch of materials shall be adopted under the same construction conditions. An acceptance batch of 500 will be conducted for inspection. For each acceptance batch of splice, three specimens must be randomly selected from the engineering structure for unidirectional tensile tes
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Problems Encountered During Rebar Coupler Processing

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 Rebar coupler is also known as mechanical splices in the construction industry. The common specifications of the  rebar coupler  are M12, M14, M16, M18, M20, M22, M25, M28, M32, M36, and M40. The most commonly used specifications are M16, M18, M20, M22, M25, M28, and M32. These are the most used on the site, but also the most commonly used. Today, we will introduce to you how to solve the wrong diameter or length problems encountered in the processing of steel sleeves.  Causes:  1. The specifications of raw materials are not accurate, and the feeding speed is too slow. 2. Raw materials are bent and not straightened before processing. 3. The mechanical equipment malfunctioned, resulting in the diameter of the rebar coupler becoming smaller. 4. Operators do not process according to engineering drawings.   Solutions: 1. Adjust raw material specifications and models, and pre-feed appropriate amount. 2. Straighten the round bend steel before cutting the raw material. 3. Check the mechanica
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