激光熔覆改性铝合金技术专利发展演进

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摘 要：通过对激光熔覆改性铝合金专利技术进行分析，分别从激光熔覆改性提高铝合金表面耐磨性、耐腐蚀性及耐高温性三个方面对专利文献技术发展脉络进行梳理，从而绘制其具体技术演进路线，并对铝合金表面激光熔覆专利技术趋势进行预测。

关键词：激光熔覆；铝合金；专利

PATENT DEVELOPMENT OF LASER CLADDING MODIFIED ALUMINUM ALLOY SURFACES TECHNOLOGY

Ma Jing

（Patent Examination Cooperation Tianjin Center of the Patent Office，CNIPA Tianjin 300000，China）

Abstract：This paper analyzes the patent technology of laser cladding modified the surface of aluminum alloys， and combs the technological development of the patent literature from three aspects of laser cladding modification to improve the wear resistance， corrosion resistance and heat resistance of the surface of aluminum alloys， so as to draw its specific technological evolution route， and predict the trend of the patent technology of laser cladding on the surface of aluminum alloys.

Key words：laser cladding; aluminum alloys; patent

0 前 言

铝合金具有比强度大、密度小、易加工、耐腐蚀性好和导电性与导热性好、无磁性等优良的综合性能[1-2]，广泛应用于汽车、航空航天、船舶等领域。（剩余5185字）