Coating technology: density detection of powder coating

Core tip: the quality inspection of powder coating mainly inspects the apparent density of the coating (i.e the quality of powder coating per unit volume), and the specific measurement method is as follows: (1) Place the funnel with a bottom opening diameter of 9.5mm vertically 38mm above the measuring cup with an inner diameter of 100ml of Φ 45mm ± 5mm, keep the funnel coaxial with the measuring cup, and close the bottom outlet of the funnel with a partition (2) Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Home of coatings: the quality inspection of powder coating mainly focuses on the apparent density of coating (i.e the quality of powder coating per unit volume), and the specific measurement methods are as follows: (1) Place the funnel with a bottom opening diameter of 9.5mm vertically 38mm above the measuring cup with an inner diameter of 100ml of Φ 45mm ± 5mm, keep the funnel coaxial with the measuring cup, and close the bottom outlet of the funnel with a partition (2) Measure the loose powder in the measuring cup, pour about 120cm3 into the funnel, quickly open the bottom of the closed funnel, and the powder will fall into the measuring cup smoothly (3) When the measuring cup is full, use a steel ruler to scrape the remaining part of the cup top, taking care not to vibrate (4) Prepare to weigh the powder coating in the measuring cup to the nearest 0.1g, and calculate the grams per 1cm3 of powder coating, which is the apparent density of powder coating Carry out three parallel tests, take the arithmetic mean as the measurement result, and the density unit is expressed in g / cm 3 Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,