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激光熔覆技术是以激光作为热源,用不同的添料方式在被熔覆的基体上放置所选择的涂层材料,经过激光照射使之与基体表层同时熔化,并快速凝固后形成稀释率极低、与基体材料形成冶金结合的表面涂层,从而显著改善基体材料表面的耐磨、耐蚀、耐热、抗氧化能力及电气特性的工艺技术。该技术具有稀释率小、熔覆厚度可控、热影响区小、工作距离大、工艺实施方便、工艺可控性强的特点。
Laser cladding technology is based on the laser as a heat source, with different materials Tim placed in the cladding of the substrate selected by the selected coating material, after laser irradiation with the substrate surface melting at the same time, and rapid solidification to form a dilution rate pole Low, forming a metallurgically bonded surface coating with the matrix material, thereby significantly improving the wear resistance, corrosion resistance, heat resistance, oxidation resistance and electrical properties of the substrate surface. The technology has the characteristics of small dilution rate, controlled thickness of cladding, small heat-affected zone, large working distance, convenient process implementation and strong process controllability.