| 摘要 |
The invention relates to ferrous metallurgy. A method for strengthening of sheet rolled stock is carried out by making of strengthened and not strengthened sites of rolled stock as strips by heat treatment, at that saided strengthened and not strengthened strips are placed perpendicularly to length of sheet rolled stock with different width which determine accordingly from the ratio: d= C/2Vn, d= C/2Vn, where dand d– width of strengthened and not strengthened strip, Сand С– rate of elastic wave of pressure accordingly in strengthened and not strengthened strips, Vand V– frequency of elastic wave of pressure, which falls, n – number of strips 1, 2, 3..., at that each next width of the strips is calculated by these ratios, but for waves of other frequencies. The invention allows increasing of quality of rolled stock due to braking distribution of cracks. |
