Research on the technology of paste boronizing for H13 die steel

In this paper, the boronizing effect of H13 hot work die steel is studied. The experiment is carried out to compare the boronizing effect of H13 steel at 850 °C, 900 °C and 950 °C. The heating time is set to 4 hours. The experimental results indicate that the temperature at 950 °C is suitable for boronizing of H13 steel. At 950 °C the boronized layer is more tightly bonded to the matrix, and the depth of the layer is deeper than at 850 °C and 900 °C. The hardness of the layer at 950 °C is better than at 850 °C and 900 °C in terms of the hardness of the layer. Therefore, 950 °C is a suitable temperature for boronizing the H13 hot work die steel. (paper)