In 2021, my country's aluminum processing industry overcomes the price of aluminum prices, energy consumption, double-controlled electricity, and exudes more disseminated, more severe floods, international shipping costs soaring, and has obtained aluminum production, profit and Export \"Three Growth \", the whole industry coordinated epidemic prevention and control and industry development has achieved exceptions. According to the National Bureau of Statistics and customs, January-November 2021, the national aluminum production increased by 8.1% year-on-year; total profit increased by 1.2 times year-on-year; the aluminum export was 49.08 million tons, an increase of 16.8% year-on-year. It is expected that the main indicators of the year are fully exceeding the level of the epidemic. By \"\ \" to \"Quality\", becomes the direction of China's aluminum processing industry, facing my country's aluminum processing industry policy, the decline in profitability, trade friction, etc., my country's aluminum processing industry should speed up transformation and upgrading From \"\" to the direction of \"Quality \", aluminum processing enterprises should extend the industry chain, implement technology and equipment upgrade

Since the end of the 1970s, China's aluminum alloy doors and windows, the curtain wall industry began to start, the promotion and application of aluminum alloy glass curtain walls in the building, from nothing, from imitation to self-developing, from the construction of small projects to contract Large-scale engineering projects, from production construction,

The surface treatment before industrial aluminum paint is small, and the aluminum surface is relatively smooth. If there is no surface treatment, the coating material is low, and the corrosion resistance is relatively low, sometimes in the paint film Corrosion. Therefore, the aluminum surface needs appropriate surface treatment before painting. The treatment method mainly has three forms, including electrochemical anodization, chemical solution oxidation, phosphating primers.