Card sleeve joint anti-corrosion insulation construction requirements are as follows: 1, should grasp the painting environment factors such as the temperature and humidity, the inside coating of the optimum temperature for 20 ~ 25 degrees, relative humidity is below 65%. Outside the construction should be no wind, rain and snow, when the temperature should not be less than 5 degrees, should not be above 40 degrees, relative humidity should not be greater than 85%, the coating field should have wind, fire, frost, rain and other measures. 2, must carry on the strict surface treatment of the pipes, such as the removal of rust, dirt, grease, slag and other surface treatment. According to the design requirements of descaling grade to take corresponding measures in addition to the lure. 3, in order to make the deal with no longer qualified pipe surface rust or contamination oil & rsquo; Must be within 3 h with the first layer of paint. 4, control the time interval between the paint coating, painting adaptability between master coating. Must meet the requirements of the film thickness, is 150 ~ 200 um. 5, operating area should be well ventilated, if necessary, can install exhaust equipment, in order to prevent the poisoning bones. 6, according to the performance of the coatings, construction, according to security technology operating rules and should be regularly check timely maintenance.