钢结构门窗在使用前,一般先在底层涂刷防锈漆或红丹防锈漆,在工程竣工交付使用前,再涂面漆。南方地区的湿度高,持续时间长,一般在使用1～2年后,会出现程度不同的点蚀和锈迹,表面涂层失光,以后随之很快剥落、开裂。这是手工除锈不太严格,除锈不彻底,很快出现锈蚀。由于大气中混杂着各种不同性质的腐蚀介质所致。在工业建筑物中的锈蚀则更为突出,我厂工业氯化铵厂房的钢门窗是在含腐蚀介质的工业大气中使用,接近氨碱生产环境,安装一 Before the use of steel windows and doors, generally first brushing the bottom of the anti-rust paint or red lead anti-rust paint, the project completed before delivery, then painted finish. South of the high humidity, long duration, generally after the use of 1 to 2 years, there will be a different degree of pitting and rust, surface coating loss of light, followed by rapid peeling, cracking. This is not strictly manual rust, rust is not complete, quickly rust. Due to the atmosphere mixed with a variety of different types of corrosive media. Corrosion in industrial buildings is more prominent, I plant industrial ammonium chloride plant steel doors and windows in the industrial atmosphere containing corrosive media used, close to ammonia ammonia production environment, the installation of a