Steel structure is composed of steel materials, which is one of the main building structure types. Steel structure is characterized by high strength, good overall stiffness, strong deformation resistance and good seismic performance, so it is particularly suitable for building large span, super high and super heavy buildings; good homogeneity and isotropy of materials, good plasticity and toughness of materials, which can well bear dynamic load; convenient installation, 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 production and construction sequence of steel structure will be introduced in detail as follows:
1、 Inspection of welding materials
The production and processing of steel structure is mainly welding, so welding rod should purchase welding materials from qualified manufacturers, and have certificate and material report. Before electric welding, the welding rod should be dried. The welding wire and flux used in submerged arc welding must be matched with the base metal.
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 quality and material certificate. Before production and processing, the raw materials used must pass the retest before blanking.
Each personnel on the steel structure construction site must undergo strict technical training and safety training, and welding personnel and crane operators must be required to work with certificates.
4、 Rust removal and painting of steel structure
After the steel structure is manufactured, shot blasting and derusting shall be carried out. The primer shall be applied within 24 hours after derusting, and the film thickness of primer shall meet the design requirements. After the primer is dry to 80%, continue to finish the spraying of anticorrosive coating, fire retardant coating and top coat.
5、 The welding sequence is reasonable
The production and processing of steel structure is mainly 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 weld joint shall be welded.
Dalian Fuxin Guangsheng Trading Co., Ltd., established in June 2017, has independent import and export rights. The company's business scope is: import and export of goods and technology. Business address: guangningsi community, Shilibao street, Dalian Free Trade Zone, with 9 business employees. Since the establishment of the company, it has continued to carry out the steel structure products export business in Singapore, Japan and Germany. Complete the exchange settlement business of Singapore dollar, Japanese yen and US dollar.
The company adheres to the concept of "honesty and pragmatism, innovation and win-win, satisfactory service, and the most outstanding". Based on the brand-new management mode, perfect technical business, considerate service and excellent quality, the company continuously provides high-quality service, continues to improve management, adheres to customer first, and strives to provide customers with satisfactory products and considerate services, and pursues win-win development with customers Set up a sustainable development, excellent enterprise.