Coating process: impact strength test

The core tip: impact strength: refers to the deformation degree of the coating under high-speed load, or the resistance degree of the coating to impact The impact resistance of the coating is related to its tensile rate, adhesion and hardness The comprehensive mechanical properties of the coating were investigated The impact strength of coating film is usually measured by impact tester It is a punch with a certain mass (1kg) falling on the coating from different heights (punch diameter size is 12.7mm and 15.9mm) It is used to check the damage degree of coating caused by deformation on the coating, which is usually expressed in n.cm Instrument and equipment Impact tester: by 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 Impact strength: refers to the deformation degree of the coating under high-speed load, or the resistance degree of the coating to impact The impact resistance of the coating is related to its tensile rate, adhesion and hardness The comprehensive mechanical properties of the coating were investigated The impact strength of coating film is usually measured by impact tester It is a punch with a certain mass (1kg) falling on the coating from different heights (punch diameter size is 12.7mm and 15.9mm) It is used to check the damage degree of coating caused by deformation on the coating, which is usually expressed in n.cm Instrument and equipment impact tester: it is composed of base, ball dropping device and support equipped with horizontal adjustment knob The ball is bearing ball, two specifications, with nominal diameter of 50.8mm, mass of 535g, nominal diameter of 63.5mm and mass of 1045g Generally, the test material is 50mm × 120mm × 0.3mm tinplate or 65mm × 150mm × 0.5mm sheet steel Put the test plate with coating on the lower iron drill of the instrument horizontally, raise the punch to the specified height to make the punch drop freely and impact the test plate Generally, the impact distance between the test plate and the edge is not less than 15mm, and between the two adjacent points is not less than 15mm After the test, use a 10 times magnifying glass to observe whether there are cracks, wrinkles, peeling and other undesirable phenomena at the impact part 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,