Study on Surface Modification Technology of Mechanical Steel Gasket
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摘要: 采用不同的激光功率、光斑直径和扫描速度,对1Cr5MoVSr机械钢制垫片进行了激光熔敷表面改性,并进行了耐磨损性能和冲击性能的测试与分析。结果表明:随激光功率从1 k W增至5 k W,光斑直径从1 mm增至3mm、扫描速度从2 mm/s增至8 mm/s,垫片试样的耐磨损性能和冲击性能均先提高后下降。机械钢制垫片的激光功率优选为3 k W、光斑直径优选为2 mm、扫描速度优选为6 mm/s。Abstract: The surface modification of mechanical gasket made of 1Cr5MoVSr steel was carried out using laser-cladding technique with varying laser power,spot diameter and scanning speed.Its wear resistance and impact resistance performances were tested and analyzed. The results show that with increasing the laser power from 1 k W to 5 k W,increasing the spot diameter from 1 mm to 3 mm,and increasing the scanning speed from 2 mm/s to 8 mm/s,its wear resistance and impact resistance performances show the tendency of increasing firstly and then decreasing.In order to make suitable mechanical 1Cr5MoVSr steel gasket,the laser power,the spot diameter,and the scanning speed are preferably 3 k W,2 mm,and 6 mm/s,respectively.
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Key words:
- mechanical steel gasket /
- surface modification /
- wear resistance /
- impact performance
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