2 results about "Dye penetration" patented technology

The invention relates to a dye penetration method for the non-destructive testing of a bearing component, in particular a rolling bearing component (12), comprising the following steps: (a) irradiating the bearing component (12) provided with a fluorescent dye (30) with excitation photons (20) in such a way that fluorescent photons (28) are generated; (b) detecting fluorescent photons (28); (c) recording the delay time (t) of the fluorescent photons (28) between the impact of the excitation photons (20) on the bearing component (12) and the emission of the fluorescent photons (28.1); and (d) determining a surface defect (32) of the bearing component part (12) on the basis of the delay time (t).

The application provides a dye composition and a dye product, and relates to the field of dyes. The raw materials of the dye composition include the following components by weight parts: 6-10 parts of component A, 10-15 parts of component B, 7-9 parts of component C, 6-10 parts of component D, 0.2-0.6 parts of component E and 0.5-2.5 parts of component F. By selecting the components A-F in the dye composition, the characteristic groups of the dye can be improved, the structure of part of the dye components can be adjusted, the temperature-resistant groups of part of the dyes can be improved, the ester group content in the dye can be reduced, the number and energy of each group of the dye are overall arranged, the affinity between the dye and the fiber is enhanced through the synergistic effect, the dye penetration is improved, the possibility of color floating and thermal migration is reduced, the washing fastness, the soaking fastness and the sublimation fastness of the dye are improved, and the high-temperature resistance and the dye penetration of the dye product are enhanced.