E2 vertical roller forging forming technology

Abstract

The invention discloses an E2 vertical roller forging forming technology. The E2 vertical roller forging forming technology comprises the steps that steel ingot heating is conducted, and the heating temperature range is 1,210 DEG C-1,230 DEG C; integral steel ingot upsetting is conducted, a steel ingot is subjected to upsetting to 1/3-1/2 of the height of the steel ingot, and after upsetting, first-time drawing is conducted, and then, the steel ingot returns to a furnace for homogenizing; after furnace discharging, upsetting is conducted again, upsetting is conducted to 1/3-1/2 of the heightof a first-upsetting and first-drawing blank, and after upsetting, drawing is conducted again, and then, the steel ingot returns to the furnace for homogenizing; after furnace discharging, third-timeupsetting is conducted, upsetting is conducted to 1/3-1/2 of the height of a second-upsetting and second-drawing blank, and after upsetting, third-time drawing is conducted, a blank with the height-diameter ratio being 2.2-2.4 is obtained, and then the blank returns to the furnace for homogenizing; rounding embossing blank manufacturing is conducted; die forging forming is conducted; and heat treatment after forging is conducted. By adoption of the forging forming technology, the three-upsetting and three-drawing production manner is adopted, crushing of a steel ingot cast-state structure canbe sufficiently guaranteed, and in combination with deformation and reversion and recrystallization effects, grains are sufficiently refined; and through forging production, the quality of a preparedE2 vertical roller is good, and volume production and quality requirements can be met.

Description

technical field [0001] The invention relates to the technical field of forging, and more specifically, relates to a forging forming process of an E2 vertical roll. Background technique [0002] The E2 vertical roll mill can roll the two vertical sides of the slab in the hot strip rolling mill to reduce and ensure the width and precision of the strip steel; it can align the slab to the rolling center line and lift the guide plate Billet function; when rolling a slab with a thickness greater than 100mm, the 300mm-wide oxide scale at the edge of the slab can be loosened, and then the high-pressure water descaling effect is good. [0003] E2 vertical rolls usually have complex shapes and require high product quality. There must be no defects such as cracks, pores, slag inclusions, sand holes, porosity, etc. that affect the use. The flaw detection requirements meet the requirements of level 3 of the GB / T6402-2008 flaw detection method, and the rolling volume per millimeter is ≥ ...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a forging forming process of the E2 vertical roll, which can effectively solve the problem that the quality of the E2 vertical roll is difficult to reach the standard

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