More and more building structures are used in the structure of the steel truss, especially the special type steel frame used in the stadium, exhibition hall and other large architectural structures, which embodies its unique style and has been recognized by the world. At present, there is no uniform standard for fabrication, welding and NDE of steel frames. Most of them are based on the reference of AWS standard in the United States. Truss girder welding machine mainly uses the world's advanced level of five-axis linkage intersecting line CNC cutting machine from Netherlands, Japan and other countries for cutting vehicles.
The supporting software can meet the technological requirements (including the length of the inclined web and the various angles of the grooves). And using NC pipe bending machine to bend the head. After bending, the roundness and asymmetry of the head can be effectively controlled and detected. Because the head and diagonal bars and their bevel are all processed on the numerical control equipment, the assembly process id required to realize easily. Butt welding is a conventional welding seam, and the quality of welding is easy to guarantee. However, it is still impossible to achieve full penetration and ultrasonic testing when the branch pipe and the Inclined rod intersect the seam of the main pipe at the same time. This is mainly due to the defects of the inner wall of the inclined belly bar and the 1 2mm failure in the local area. So the welding strength is reduced, and the diameter of the dry rod is less than 159mum, and the CB11345 nondestructive testing can not be used.
August 17, 2019The wire straightener itself has several special properties. Here, the author takes the reinforcing wire material as an example to introduce these few properties for everyone to understand.First of al...view
September 13, 2018How can we improve work efficiency while operating a rebar bender and cutter? The emergence of a rebar cutter machine replaced manual processing not only improved work efficiency, but also ensured pro...view
June 30, 2019The welding of wire in construction generally includes: flash butt welding, resistance spot welding, arc welding, electro slag pressure welding, the submerged arc pressure welding of T joint of embedd...view
September 25, 2018It is well known that rebar bender and cutter are designed to cut off all kinds of round steel, thread steel fixed-length cutting operation is a very typical rebar processing equipment. It is widely u...view
October 31, 20181. The rebar bending machine must have product specifications, certificates of conformity and maintenance records, it should be installed on a stable ground, and its cable insulation is good. Zero pro...view
July 25, 2018Purpose: The bending machine is used to test the repeated bending properties of metallic material which its diameter is 3--8mm and show its defects. Repeated bending machine, which also named standard...view