Research on a Surface Strengthening Treatment Process for Slender Rods
In order to improve the surface properties of slender rods,the research on surface strengthening coating technology for slender rods was carried out.By comparing the commonly used surface strengthening technologies for slender rods,combined with the actual production,three kinds of coatings are screened,and surface spray melting technology is selected to prepare cobalt-based alloy coatings on the surfaces of slender rods,and their wear resistance,bonding strength,and hardness tests are carried out.The test results show that:the cobalt-based alloy coating on the surface of slender rod prepared by surface fusion spraying technology has no defects in appearance,the coating thickness is more than 1 mm,the permissible bending deformation after fusion spraying reaches 2.3 mm,and the coating performance meets the requirements of hardness,bonding strength and wear resistance.Therefore,the performance of the test-prepared elongated rod with surface-strengthened coating meets the requirements of surface performance strengthening,and can be used as a means of surface strengthening of elongated rods.
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