Boronizing Process of A Solid Boronizing Supply Agent with Rare Earths

摘要

The boronizing supply agent of a low-priced solid with RE, the experimental of the boronizing process and the amount of adding RE were studied. The function of RE was discussed. The results show that the symmetrical and dense boronized layer can be obtained on the surface of steel by using the solid boronizing supply agent with RE element for boronizing, RE can deduce the temperature of boronizing and increase the rate of boronizing and the hardness of boronized layer, and it can also improve the distribution of hardness of boronized layer. The best condition of the solid boronizing supply agent is at 860 ℃ for 4～6 h, and the addition amount of RE is 6%(mass fraction).