Base material with high surface binding force and preparation method thereof

• Main Author: WANG HENGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2021
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention provides a base material with high surface binding force and a preparation method thereof. The preparation method comprises the following steps of testing the diameter and depth of a micro-pit on the base material after a single pulse reacts with a material by using pulse laser. By changing the power or the number of machining times, a relation curve between the single-pulse energy and the number of machining times and the size and depth of the micro-pit can be obtained, and in practical application, a certain machining path and a certain scanning speed can be rapidly set for machining according to the relation curve and the size of the needed micro-pit, and thus, a high-binding-force base material with micro-pits regularly arranged and non-overlapped on the surface of the base material. According to the method, the roughness, the binding force and the variable surface tension (hydrophilic-hydrophobic property) of the surface of the base material can be remarkably improved. The preparation metho