Changsha DLADTO Rebar Splice Co., Ltd

 How to distinguish the positive and negative wire coupler s of straight threaded couplers, how to distinguish the positive and negative wire couplers of straight threaded couplers? There are two ways to distinguish the positive wire and the reverse wire in the conventional straight thread connection coupler , as follows. You can hold the threaded connection coupler with your right hand. If the helix angle of the thread is in the direction of the thumb, it is a positive thread; if it is the opposite, it is a reverse thread. If you hold it in your hand and rotate clockwise, it can be screwed in, and if it is rotated counterclockwise, it is a positive wire; It can also be seen with the naked eye that each coupler of the coupler has a corresponding steel stamp.

 In the construction industry, various steel bars are used in a very wide range of situations. It is known that the length of steel bars is limited. Sometimes the steel bar is too long and people will cut it, and sometimes we also need to connect them. If the cut steel bar is not very long and connected with welding technology, it is not only time-consuming, but sometimes the labor cost of connecting the steel bar is far beyond the use of the value, and such a practice often does not pay for itself. Now the rebar coupler is a new product designed to replace the traditional welding method. Instead of using the old connections method, the rebar coupler uses new technology to connect steel bars without any electrical support. The rebar coupler adopts the international standard 45 steel, so that the product has unexpectedly super hardness, to ensure firmness and stability during use. The rebar splicer and coupler has an exquisite design and high precision, which effectively ensures tha...

The qualified standards for the rebar coupler are as follows: 1. The  rebar coupler  is made of 45 high-quality carbon structural steel with reasonable design, advanced technology, high dimensional accuracy, and reliable connection quality. 2. The basic parameters of rebar couplers are designed in accordance with the strength requirements of HRB500 steel bars, and also can be applied to HRB335 and HRB400 rebars. 3. The performance indexes of the rebar coupler have been tested by the "National Construction Engineering Quality Supervision and Inspection Center", and all of them meet the requirements of the "I" class joint in JGJ107-2016 Technical Regulations on Mechanical Connection of Rebar. 4. The specifications match the diameter of the connected steel bar, being divided into ten regular specifications: φ14mm, φ16mm, φ18mm, φ20mm, φ22mm, φ25mm, φ28mm, φ32mm, φ36mm, φ40mm, as well as special specifications: φ10mm, φ50mm. 5. Three series (standard rebar coupler, lef...

Different Usage 1.  Threaded rebar coupler  is to peel off part of the longitudinal ribs and transverse ribs at the ends of the steel bars to be connected by cutting with a thread rolling machine, and then roll them into ordinary straight threads directly, and connect them with a special threaded sleeve. The technology is efficient, convenient and fast. 2.  Cold extrusion rebar coupler  connection is to put two bars into the rebar coupler, then use a cold extruder to extrude the connection sleeve radially, so that the coupler is cold plastically deformed and the steel bars are tightened. This connection method is used for grade II and grade III steel bars with a diameter of 16 to 40 mm, which are divided into radial extrusion and axial extrusion. Different Technology 1. Threaded rebar coupler relies on two pipe wrenches to tighten the steel bar and the casing to connect the two steel bars. 2. Cold extrusion rebar coupler is to squeeze the casing through the extrusion...

  1. High connection strength, stable and reliable connection quality. The joint strength meets the industry standard JGJ107-2003. The tensile strength should not be less than 1.10 times of the actual tensile strength of the connected steel bar or the standard value of the tensile strength of the steel bar. 2. Good fatigue resistance. The joints pass the two million fatigue strength tests specified by the industry standard. ​ 3. Material saving. Take the steel connecting coupler with a diameter of 40mm as an example, the mass of the extruded sleeve is 4kg, and the straight thread sleeve is 1.1kg. The quality of the  straight thread rebar coupler  is 25% of the extruded rebar coupler, and the joint performance is the same as extruded joint. 4. Convenient to connection. The processing of steel wire head is factory-like and don't need lot construction time. On-site connection and assembly operations take a short time. 5. The steel wire head is easy to process. The two proces...