The technical difficulties of photovoltaic support

First, high-quality steel usually has a high level of galvanizing process. According to the requirements of the national standard, the average thickness of the galvanized layer should be greater than 50μm, and the minimum thickness is greater than 45μm. In fact, although the average thickness of the galvanized layer of many products can meet the requirements, the minimum thickness is less than 40μm, and pitting often occurs in actual use. The corrosion rate of halogen on steel is very fast, and it may cause the weakening of the overall support structure within a year, resulting in safety risks. Therefore, it is not easy to achieve a highly uniform galvanizing process.
Secondly, the connection of section steel is a technical difficulty. A set of effective connection methods, including not only the clever idea of the connector, but also with the channel steel back hole, the design of the bite teeth and so on. This involves stamping, casting and other aspects of iron and steel metallurgy technology.
In addition, double-sided channel steel used to withstand large loads must be welded back to back. There is a big gap between the levels of various welding processes. Pressure laser welding can ensure the uniform connection of the whole section, and the two channels are completely integrated into one body and jointly stressed; The electric welding technology can only make the two channel steel parts fixed together, and the force form is closer to the superposition beam. In order to improve the bearing capacity of some steel sections, cold rolling of stiffening ribs is also added to the channel steel.
In short, there are many technical difficulties in the production process of assembled steel brackets, which require metallurgical engineers and technicians to overcome technical barriers and further reduce their use costs.