Hainan Steel News: Steel stitching skill points

Hainan Steel News: Steel stitching skill points

For combustion boiler, it theoretically should avoid splicing steel structure, as disposable sets completely assembled structure. However, the actual manufacturing process often encounter many problems need to be steel splicing to assemble into functional perfecting of boiler equipment. If the boiler must splicing steel manufacturing equipment, you need to pay attention to a number of related matters, and selection of appropriate splicing skills, focusing on two aspects reflect the weld skills, symmetry skills.
1, welding skills. Steel weld size for its future use capabilities have a greater impact, weld too easy to form an instant of crack problem facing the use of boiler combustion potential security risks. Stitching required, should be fully expected to see before the next drawing, serious discharge, ensure the distance between the staggered offset distance between the splice or welding seam weld seam with an adjacent standard requirements: offset distance should be ≥200 [2] beams, columns or plates beam welding seam weld the bracket or bulkhead should be staggered, staggered distance should be ≥100.
2, symmetry skills. Taking into account the effect of the steel structure overall mechanical balance, abnormal deformation in order to prevent excessive stress loads caused by using symmetric processing skills necessary to strengthen and enhance the cracking function splice locations. Such as: steel splice site must-chip reinforcing plate stiffeners Size should be in accordance with relevant standards. Since the assembly and welding the reinforcing plate increases from the gravity of boiler equipment, as much as possible when welding the reinforcing plate assembly position symmetrical, so that the steel structure to withstand gravity load balanced.
3, open slope skills. Steel is the main material of the boiler steel manufacturing, with its common structural features has been applied throughout. Manufacturing process to add open slope skills to maintain steel having a suitable degree slope, to facilitate the post-welding process, to maintain a good steel function. Such as: steel splice site should open groove to facilitate penetration, strengthening covering parts of the plate, and the remaining parts should open type symmetric double-sided groove, such as: the general viewpoint groove 32.57 ± 2.5, blunt edge 1 ±, slope tone cut surface should be smooth grinding. Hainan Steel