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当前位置:首页 >>新闻中心 >> 启闭机轴承防锈措施
一、被防锈物的表面预处理方法: 1)表面清洁:清洗必须依被防锈物表面的性质和当时的条件,选定适当的方法。一般常用的有溶剂清洗法、化学处理清洁法和机械清洁法。 2)表面干燥清洗干净后可用过滤的干燥压缩空气吹干,或者用120~170℃的干燥器进行干燥,也可用干净纱布擦干。 二、涂敷防锈油的方法: 1)浸泡法:一些小型物品采用浸泡在防锈油脂中,让其表面粘附上一层防锈油脂的方法。油膜厚度可通过控制防锈油脂的温度或粘度来达到。 2)刷涂法用于不适用浸泡或喷涂的室外建筑设备或特殊形状的制品,刷涂时既要注意不产生堆积,也要注意防止漏涂。 3)喷雾法一些大型防锈物不能采用浸泡法涂油,一般用大约0.7Mpa压力的过滤压缩空气在空气清洁地方进行喷涂。喷雾法适用溶剂稀释型防锈油或薄层防锈油,但必须采用完善的防火和劳动保护措施。 三、影响金属腐蚀的主要因素: 金属腐蚀是由各种内在的和外在的因素所引起的,归纳起来主要有: ①金属材料本身化学成分和结构; ②金属表面光洁度(氧浓度差电池腐蚀); ③与金属表面接触的溶液成分及pH值; ④环境温度和湿度; ⑤与金属表面相接触的各种环境介质。 First, the surface pretreatment method of antirust: 1) surface cleaning: cleaning must be selected according to the properties of the surface of the antirust and the conditions at that time, and the proper method is selected. Solvent cleaning, chemical cleaning and mechanical cleaning are commonly used. 2) after the dry cleaning of the surface, the dry compressed air can be dried by filtering or drying with a dryer at 120~170 C and dry with clean gauze. Two, the method of coating antirust oil: 1) soak method: some small items are soaked in antirust grease to make the surface adhere to a layer of antirust grease. The oil film thickness can be achieved by controlling the temperature or viscosity of the rust preventive grease. 2) the brush coating method is used for the outdoor building equipment or special shape products that are not suitable for soaking or spraying. When the brush coating is painted, we should not only pay attention to no accumulation, but also prevent the leakage. 3) spray method can not be used to soak some large antirust substances by immersion method. Generally, the filter compressed air of about 0.7Mpa pressure is used for spraying in the clean air area. Spray method is suitable for solvent dilution antirust oil or thin layer antirust oil, but must adopt perfect fire protection and labor protection measures. Three. The main factors affecting metal corrosion are that metal corrosion is caused by various internal and external factors. The main factors are as follows: (1) the chemical composition and structure of the metal material itself; (2) the surface finish of metal (oxygen concentration difference battery corrosion); (3) the solution composition and pH value of the metal surface. 4. Ambient temperature and humidity; and various environmental media contacting with metal surface.
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