Introduction to Chongqing Steel Structure Plus Welding Technology
Introduction to Chongqing Steel Structure and Layer Welding Technology With the continuous growth of the economy, people's quality of life continues to improve, and the demand for the quality of the environment and construction projects also continues to increase. The welding technology of engineering steel structure is also constantly developing. Steel structure engineering should choose appropriate welding process, plane welding, vertical welding, horizontal welding, overhead welding, etc., short arc welding, the arc length is usually 2-4mm. Weld seam cleaning: Check the parts for damage and vacancy, and the weld seam must not be oily or rusted. When baking electrodes, they must meet the specified temperature and time. Remove the electrode from the oven and store it in the electrode. Choose the appropriate welding current according to the welding level, electrode type, diameter, thickness, welding process and other factors. Welding speed: constant speed welding is required to ensure uniform thickness and width. The cast iron and slag of the molten pool should be equidistant (2-3mm) from the inside of the mask. Welding is determined by different types of electrodes. The welding angle is usually the angle between the electrode and the welding direction is 60-75, and the other is the angle between the electrode and the left and right sides of the welding. Each weld is welded to the end of the filler arc, and after the crater, the arc should be applied in the opposite direction to the welding direction so that the arc crater is in the weld bead. At the end of the welding, gas cut the bent plate and smooth it out. The maturity and development of steel structure and layer engineering welding technology will speed up the development of China's steel structure engineering. Welding technology is very important for the future prospects of steel structure engineering. Steel houses are urban recyclable structures. Not only can it be recycled and reused, it can also reduce the emission of construction waste, it can also promote the industrialization of houses, and improve and improve parts. Compared with developed countries, there are great differences in the ecological composition of steel structures in China. In developed countries such as the United States and Japan, steel structure steel structure accounts for more than 30% of steel production, and steel structure accounts for more than 40% of the total construction area. In China, the steel used for steel structure is less than 6%, and the area of steel structure is less than 5% of the total construction area. Steel structure and floor At present, the building structure in China is mainly composed of reinforced concrete and stone structure, which is the main source of building energy consumption. The low data recovery rate of reinforced concrete and brick structures constitutes a huge waste of resources. After the structure is removed, a large amount of waste is generated, which is expensive to dispose of. In the whole life cycle, the steel structure has large scrap metal resources, becoming the second mining industry, improving the production capacity of the steel industry, and completing the circular economy, energy saving and environmental protection. Steel structures have excellent seismic performance and can reduce earthquakes. greeting. Casualties and property losses have become places of temporary exile, and post-disaster reconstruction costs are low, and industrial production can also be carried out within a short construction period to ensure the quality and construction period of construction projects.