Research on the Formation and Disposal of Oxide Scales Produced by Heat Treatment of Boiler Products
In the manufacturing process of high temperature and pressure parts(pipes)of power station boiler,stress relief annealing was a necessary process after welding and bending of products.In the process of stress relief annealing,oxide scales would be produced inevitably on the surface of some alloy steel materials,which would weaken the coating effect and impair the anti-corrosion quality of products.By comparing the experimental results of different surface states of the workpiece,heat treatment tempera-ture and time and heat treatment atmospheres,the reasons for the formation of oxide scales were analyzed,and prevention measures to reduce the formation of oxide scales were proposed.According to the engineer-ing practice,seven measures were proposed for the disposal of oxide scales to ensure the product quality meet the relevant standards,and compared from three aspccts of the cost,efficiency and environmental pro-tection property,providing experience and reference for the disposal of oxide scales in products with differ-ent structural.
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维普
