




The electric pencil hardness testing machine is suitable for testing the hardness of spray coatings of various home appliance digital products such as mobile phone shells, MP3/MP4 shells, and notebook computer shells, and testing the hardness of various metal coatings, decorative materials, and synthetic leathers in paint fields. This machine scratches the paint film of the product with a pencil marked with a certain hardness, and uses the hardest pencil mark that does not cause damage to the paint film to indicate the paint hardness. This press meets the requirements of GB/T6739-2006, ASTMD3363, ISO15184, BS3900-E19, ECCA-T4/1, JIS, CNS and other standards.
This machine scratches the surface of the coating film with a hardness pencil to test the surface hardness of the coating film layer. The hardness pencil is fixed at an angle of 45°, so that the tip of the tip is in contact with the surface of the coating film layer, and an appropriate load is applied. According to a certain speed (JIS standard 0.5mm / second) move the test platform to move the surface of the coating layer past the core, and the softest pencil grade that will not cause damage (scratch) to the coating layer can be regarded as the hardness of the coating layer.
1. Before the machine test, the whole machine must be placed horizontally;
2. Before the test, adjust the speed to the minimum, let the machine run normally, and then adjust the speed to the test demand value;
3. The template needs to be clamped to prevent the test effect from being loosened.
In order to maintain the clean appearance and mechanical life of the machine, please perform regular maintenance and cleaning according to the following recommendations:
1. The panel part can be cleaned with stain-removing oil.
2. The painted part can be cleaned with stain remover oil and pine perfume.
3. Please clean the fixture part frequently to ensure that the product can be effectively and powerfully clamped.
4. The internal transmission structure between the connecting rod and the connecting rod screw and between the two sliding rods and the linear bearing needs to be replaced with lubricating grease (industrial butter) after half a month of normal use. The original grease needs to be removed in advance.