| 摘要 |
Invention relates to the ferrous metallurgy, namely, to external parameters of casting made of semikilled or rimmed steel. Casting of semikilled or rimmed steel, cross section of which is described by a rectangle, the relationship of sides of which exceeds 1.2, is narrowed upwards, having upper and lower base and lateral faces. At least, the opposite lateral faces of casting at its height of 0.7-0.97 of the lower base are executed, at least, with one bend with interior angle ? between the generatrix of the surfaces of casting in the plane perpendicular with its base, which is within the limits of 130-220 DEGREE , at an angle ? between the generatrix of the surface of casting and the vertical axis not exceeding 50 DEGREE . |
