As a key building component, the corrosion resistance and protection technology of building forgings directly affect the service life and safety of buildings. In order to improve the quality and reliability of forgings, the corrosion resistance and protection technology of building forgings will be deeply discussed in this paper.
In the field of construction, forgings are widely used in Bridges, high-rise buildings, water conservancy projects and other key parts. Due to the high safety requirements of these parts, the corrosion resistance of forgings is also put forward higher requirements. Corrosion resistance refers to the ability of metal materials to resist the erosion of various media, including the ability to resist corrosive media and the durability of corrosion resistance. For forgings, corrosion resistance mainly depends on factors such as the composition of the material, organizational structure and surface state.
According to the characteristics of corrosion resistance, forgings are mainly divided into corrosion-resistant steel forgings and non-corrosion-resistant steel forgings. Among them, corrosion resistant steel forgings mainly include stainless steel forgings and high alloy steel forgings, which have good corrosion resistance; Non-corrosion resistant steel forgings are mainly made of carbon steel and low alloy steel, and corresponding protective measures need to be taken to enhance its corrosion resistance.
Protection technology is one of the important means to improve the corrosion resistance of forgings, including coating, chemical treatment and physical treatment. Coating is a common protective measure that can form a dense film on the surface of the metal, effectively preventing the penetration of corrosive media. Chemical treatment improves corrosion resistance by changing the composition and structure of the metal surface. Physical treatment uses physical means to change the state of the metal surface, such as heat treatment, shot peening and other processes, to improve the corrosion resistance of the metal.
The production process of building forgings mainly includes material selection, heat treatment, machining and other links. In the material selection stage, materials with excellent corrosion resistance should be selected, such as stainless steel, high alloy steel, etc. The heat treatment process adjusts the internal structure of the metal to improve its mechanical properties and corrosion resistance by controlling the heating, insulation and cooling process. Machining is the shaping and cutting of heat-treated materials to form forgings of the desired shape and size.
After the forging production is completed, it is also necessary to carry out strict quality inspection. Quality inspection includes appearance, size, chemical composition, physical properties and many other aspects. Appearance inspection mainly checks the surface state of the forging, such as whether there are cracks, pores and other defects; Size detection is to measure whether the parameters of the forging meet the design requirements; Chemical composition detection analysis of various elements in the forging content to ensure that it has excellent corrosion resistance; Physical performance testing assesses the mechanical properties, metallographic structure and other indicators of forgings to ensure that they meet the requirements of use.
In short, the corrosion resistance and protection technology of building forgings is a key factor affecting building safety and service life. Through reasonable material selection, advanced production technology and effective protective measures, the corrosion resistance of forgings can be significantly improved and the service life of buildings can be extended. With the continuous development of science and technology, the corrosion resistance and protection technology of building forgings will be further improved in the future, injecting new impetus to promote the sustainable development of the construction industry.
