Changsha DLADTO Rebar Splice Co., Ltd

Workers may encounter the problem that the  rebar sleeve  cannot be screwed on the wire head during the construction. Why the threaded steel sleeve cannot be tightened? Here let's talk about the reason: 1. The threaded pitch of rebar sleeve is different from that of the wire head. The pitch of Φ16, Φ18, Φ20, Φ22 rebar sleeve is 2.5mm, and Φ25, Φ28, Φ32, Φ36 rebar sleeve is 3.0mm. The pitches of Φ40 steel sleeves are 3.0mm and 3.5mm. 2. The tooth angle of the rebar sleeve of the steel bar is different from the tooth angle of the steel wire head. There are two types of rebar sleeve with tooth angles of 75° and 60°. 3. The wire hood is too big. Due to the insufficient adjustment accuracy of the rolling mill during the threading process, there will be deviations. The wire head cover is too large, or the gear plate of the steel bar rolling machine is not compressed, and the eccentric shaft of the rolling machine has moved. Above are reasons may cause the threaded rebar sleeve fail ...

 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.

Rebar sleeve   connection is  mechanical connection, which is divided into grades I, II , III. The grade I is that the tensile strength of the joint is not less than the actual tensile strength of the connected steel bar or 1.10 times the standard value of the tensile strength of the steel bar, and has high ductility and repeated tension and compression. The grade II is that the tensile strength of the street is not less than the standard value of the tensile strength of the connected steel bar, and has high ductility and repeated tension and compression properties. The grade III is that the tensile strength of the street is not less than 1.35 times the standard value of the yield strength of the connected steel bars, and has certain ductility and repeated tension and compression properties. The primary rebar sleeve is tensile strength of the first-level sleeve reaches or exceeds 596Mpa. In another word, the primary sleeve is a steel bar connection sleeve that reaches or exce...

The location of   steel sleeve   connection joints 1. The joint is located in the position where the tensile steel stress is small. When the joint is set to a high stress position, the percentage of Class III joints in the same connection section cannot be big than 25%. The percentage of Class II seams should not be big than 50%, and the percentage of Class I seams should not be limited. 2. The node avoids the seismic fortification requirements of the frame beam end and the column end stirrup densification area. When it is unavoidable, the percentage of Class II joints or Class I joints should not over 50%. 3. For parts with low tensile strength or longitudinal compression, the percentage of joints is not limited. Changsha DLADTO Rebar Splice Co., Ltd  is a professional rebar coupler producer, we have been in this field for a long time with customers for all over the world. If you have any inquiry, welcome to contact us.

  Rebar coupler   are divided into parallel threading rebar coupler, cold extrusion rebar coupler, upsetting forged rebar coupler, split rebar coupler, grouting rebar coupler, etc. Regardless of the type of rebar coupler, they are named by the size of the steel bar it is connected to. At present, the specifications of the rebar coupler are 12, 14, 16, 18, 20, 22, 25, 25, 32, 36, 40, 50, and there are also positive and negative wires and reducer rebar coupler, such as: 25 positive and negative wires, 28 positive and negative wire, 28/25 reducing rebar coupler, 28/22 reducing rebar coupler, etc. The common specifications of the steel connecting sleeves produced are Φ12, Φ14, Φ16, Φ18, Φ20, Φ22, Φ25, Φ28, Φ32, Φ36, Φ40. the size can be customized as required. Changsha DLADTO Rebar Splice Co., Ltd  is a professional rebar coupler producer, we have been in this field for a long time with customers for all over the world. If you have any inquiry, welcome to contact us.

Rib-peeling straight threaded connection   is a new type connection technology. Steel sleeves can be divided into: threaded steel sleeves and straight threaded steel connecting sleeves, which are mainly used in the pavement of municipal bridges and highway bridges, the renovation of old bridge decks, and the crack prevention of bridge piers. Through the quality inspection of thousands of bridges in China, the report shows that using steel sleeves to connect steel welded wire mesh and steel welded mesh can improve the quality of bridge deck pavement, the pass rate of protective layer thickness reached 98%, the paving speed is increased by more than 50%, and the construction cost of bridge deck paving is reduced by about 10%. Changsha DLADTO Rebar Splice Co., Ltd  is a professional rebar coupler producer, we have been in this field for a long time with customers for all over the world. If you have any inquiry, welcome to contact us.

Features of   grade 4 steel rebar coupler : 1. Taking international No. 45 steel with special manufacturing process. They have high dimensional accuracy and reliable quality. 2. Grade 4 steel rebar coupler is able to connect HRB500 ribbed steel bars of Ф16-Ф32mm. 3. Grade 4 steel rebar coupler are tested by the National Construction Engineering Quality Supervision and Inspection Center, it has reached the I-level joint standard in JGJ107-2016. 4. It has three series of standard type: positive and negative thread type and transition thread type, which can meet the horizontal, vertical and oblique directions of industrial and civil construction, water conservancy, power station, bridge, tunnel, subway and other building structures. The requirements for connecting steel bars of the same diameter, different diameter and adjustable length and direction in other parts. Changsha DLADTO Rebar Splice Co., Ltd  is a professional rebar coupler producer, we have been in this field for a l...

a)   Straight threaded rebar coupler   should be made of grade 45 round steel or seamless steel pipe and its mechanical properties and chemical composition should meet the requirements of GB/T 699 and GB/T 8162. Other steels also can be used and their mechanical properties should comply with the provisions of the corresponding national or industry standards and be confirmed by type inspection. b) Straight threaded rebar coupler need to be welded with structural medium-section steel and other steels, the material shall meet the requirements for welded ability. Changsha DLADTO Rebar Splice Co., Ltd   is a professional rebar coupler producer, we have been in this field for a long time with customers for all over the world. If you have any inquiry, welcome to contact us.

  Changsha DLADTO Rebar Splice Co., Ltd   is a professional   rebar sleeve   manufactor, we are like to share knowledge about the prodout. Today let's talk about the technical features of the new rebar sleeve: 1. New rebar sleeve is suitable for the connection construction of steel bars in the reinforced concrete layout of various structures that receive tensile and compressive bidirectional forces. 2. New rebar sleeve are material saving and energy saving, which not restricted by the composition and variety of steel bars. 3. They can be connected in all directions. 4. They can be prefabricated in advance, factory-like operation, which doesn't occupy the construction period and can be constructed around the clock. 5. The operation is convenient and convenient and the construction speed is fast, which can greatly shorten the construction period. The thread shape is good, the precision is high, and the connection quality is stable and reliable.

Rebar sleeves  is a rebar connector with the insider threads that are correspond to the head threads. Its length is a key factor in determining the qualification of the rebar connection sleeves. Rebar sleeves are primarily used in construction industry, it brings convenience to the industry and generates efficient. 1. Using rebar sleeves in the construction industry can reduce the material usage greatly. It is also easy to operate, unrestricted by the type rebars. Customize in advance is available, which won’t take your duration and it has a high processing efficiency. 2. Rebar sleeves is easy to be connected, not only handy but also convenient. Electricity is not necessary during construction. All-weather construction is acceptable. 3. Rebar sleeves are able to connect horizontal, vertical and inclined HBR335,HBR400 same diameter or different diameter rebars. These are the introduction of the advantages of rebar sleeves.  Changsha DLADTO Rebar Splice Co., Ltd  is a profe...