Changsha DLADTO Rebar Splice Co., Ltd

Weldable rebar coupler  can be fixed on steel structures through welding at one end for connecting reinforcement bars and steel plates; ordinary sleeves are used for connecting reinforcement bars. Weldable rebar coupler are used for connecting reinforcement bars between rigid steel columns. The difference between weldable rebar couplers and ordinary rebar coupler is the 45-degree chamfering process of the weldable rebar couplers, which is not present in the ordinary rebar coupler. Additionally, the lengths of weldable couplers vary, and technical parameters such as length, pitch, and thread angle depend on the needs of the construction.  Welding characteristics of weldable rebar couplers 1. Reliable connection quality and fast construction speed; 2. Welding joint quality meets the higher level requirements of Grade I joint performance in the industry standard “General Technical Specification for Mechanical Connection of Reinforcement Bars”

In cold extrusion forming, the cracking of the   sleeve   is caused by transverse tearing. It can be avoided by the following methods: 1. Reduce friction to decrease the additional tensile stress on the metal surface. This can be achieved by improving extrusion lubrication conditions or using smoother die surfaces. 2. Control the extrusion temperature to prevent excessive temperature from reducing the tensile strength of the metal surface. This can be achieved by selecting appropriate extrusion temperatures or improving the cooling system. 3. Control the extrusion speed to avoid excessive additional tensile stress on the metal surface. This can be achieved by adjusting the operating parameters of the extrusion machine or using more suitable extrusion speeds. In summary, in order to prevent cracking during cold extrusion forming, it is important to strictly control process parameters and take appropriate measures to reduce friction, control extrusion temperature and speed. This can effe

Attention points for purchasing   rebar coupler : 1. Random sampling for testing should be conducted. 5% of each batch should be tested, and the acceptance rate should be higher than 95%. If the qualification rate is lower than 95%, a second sampling should be carried out with the same number of new samples. After two rounds of testing, if the average qualification rate is still above 95%, then the batch of sleeves is considered qualified. If it is still below 95%, each sleeve in that batch should be individually tested. 2. The manufacturer of the rebar coupler should have a certificate of conformity and material specification. 3. The couplers should be tested for their ability to be screwed in. 4. Both ends of the couplers should have plastic protective caps. 5. The plastic protective caps should be marked with the same specifications as the rebar coupler.