FIELD: metallurgy.
SUBSTANCE: plate-rolling, which can be used in production of main gas and oil pipelines and in shipbuilding, rolled sheet is reinforced and strengthened, limited by lines in accordance with the equation:
where a – parameter making (0.2–0.3) of sheet length, m; b is sheet width, m; k = 1, 2, 3, …, N; N = b / c = (6–7); c is width of strengthened and non-reinforced strips, m.
EFFECT: high crack resistance of rolled plate.
1 cl, 3 dwg
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