Steel structure is a kind of structure composed of steel materials, which is one of the main types of building structure. The structure is mainly composed of beam steel, steel column, steel truss and other components made of section steel and steel plate. Steel structure is characterized by high strength, light weight, good overall rigidity and strong resistance to deformation, so it is particularly suitable for building large-span, super high and super heavy buildings; the material has good homogeneity and isotropy, good plasticity and toughness, large deformation, and can well bear the dynamic welding processing load; short construction period; high degree of industrialization and high degree of mechanization Specialized production. Quality is the life of an enterprise. The safety production and correct construction sequence of steel structure provide quality assurance for the enterprise. The sequence of steel structure production and construction will be described in detail below:

1、 Inspection of welding materials

The production and processing of steel structure are mainly welding, so welding rod shall purchase welding materials from qualified manufacturers, and shall have qualification certificate and material report. Before welding, the welding rod shall be dried, and the welding wire and flux selected for submerged arc welding must be matched with the base metal used.

2、 Requirements for raw materials

The raw materials used in the production of steel structure components must be the raw materials produced by regular manufacturers, and must have the certificate of conformity and material certificate. Before production and processing, the raw materials used must pass the retest before blanking.

3、 Work with certificate

Every person on the steel structure construction site must undergo strict technical training and safety training, and must require welding personnel and crane operators to work with certificates.

4、 Steel structure derusting and painting

After the completion of steel structure fabrication, shot blasting shall be carried out for rust removal. The primer shall be applied within 24 hours after rust removal. The thickness of primer film shall meet the design requirements. After the primer dries to 80%, the coating of anticorrosive coating, fireproof coating and finishing coat shall be continued.

5、 Reasonable welding sequence

Steel structure production and processing is mainly based on welding, so it is necessary to formulate a reasonable welding sequence. When several kinds of welding seams are to be welded at the same time, the transverse seam with large shrinkage deformation shall be welded first, and then the longitudinal seam shall be welded. Or weld the butt weld first, then the fillet weld.

Dalian Guangtong Steel Structure Co., Ltd. is a large modern steel structure enterprise with construction qualification and design qualification in Liaoning Province, specializing in the design and manufacture of steel structure and non-standard metal parts. The company covers an area of 18000 square meters, including 13000 square meters of plant area, with dozens of advanced processing and testing equipment. The production and processing of steel structure is the fundamental premise to ensure the quality, and each process is subject to strict quality inspection. Dalian Guangtong Steel Structure Co., Ltd. has an excellent design team with high efficiency and strong professional technology. It can provide a reasonable design plan to meet the requirements of customers. Our company takes green energy-saving, safe and efficient as the building concept, and has become a large comprehensive steel structure enterprise integrating steel structure processing, installation and maintenance.