Title: Laser nanometer cermet alloying process for surface of metallurgic hot roller
Application Number: 200610047997 Application Date: 2006.10.12
Publication Number: 1932079 Publication Date: 2007.03.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C23C24/10;B23K26/34;C23D5/02;C23D1/00;B21B27/02;C04B35/56
Applicant(s) Name: Shenyang Dalu Laser System Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: lishu
Abstract:
    The laser nanometer cermet alloying process for surface of metallurgical hot roller includes the following steps: 1. machining the roller to eliminate surface fatigue layer to obtain required size and shape, grinding the surface to be laser treated, eliminate dirt and cleaning properly; 2. mixing phenolic resin adhesive and nanometer carbide ceramic paint homogeneously and coating the mixture to the surface of the roller in the thickness of 0.01-0.05 mm before air drying; and 3. scanning the nanometer ceramic coating on the surface of the roller fast with high power CO2 laser in the technological parameters of laser power 1,000-10,000 W, scanning speed of 1.5-20 m/min, lapping rate of 15-35 % and light spot diameter of 0.6-5 mm. The present invention has optimized technological parameters, and can result in solid solution reinforcing and dispersion reinforcing effect, raise the heat stability of the alloy layer, and raise the strength, plasticity and toughness of the alloy layer.
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