CPC B23P 15/28 (2013.01) [A01B 33/00 (2013.01); A01B 33/10 (2013.01)] | 6 Claims |
1. A process for processing a rotary tillage blade for a dry farmland based a wasted steel rail, comprising the following steps:
S1: selecting a waste annotated steel rail comprised of U71Mn or U75V, breaking the waste annotated steel rail into a rail head, a rail web and a rail bottom in a cutting area by means of a flame cutting device and cutting the waste annotated steel rail; and
applying a hydrostatic pressure to the waste annotated steel rail by using a hydraulic machine to separate the rail head, the rail web and the rail bottom, and in a feeding area, selecting a dedicated clamp to hoist the rail head, the rail web and the rail bottom by means of an automatic feeding robot to complete a feeding;
S2: in a heating area, placing the rail head, the rail web and the rail bottom in an electric heating furnace to be heated to red blanks, rolling the red blanks in a hot rolling area, and performing air cooling and cutting and packaging in a cutting and packaging area to form a blank raw material of the rotary tillage blade;
S3: feeding a blank of the blank raw material to a rotary tillage blade production line, wherein the rotary tillage blade production line comprises a transporting device, a blanking device, a punching device, the electric heating furnace, a bending device, a hot forging device, a thermal treatment device, a packaging device and an integrated control unit,
transporting, by the transporting device, the blank raw material to a blanking area of the blanking device,
cutting and segmenting a raw material blank according to a model of the processed rotary tillage blade,
punching the cut and segmented raw material blank by means of the punching device according to a shape of the rotary tillage blade, and
breaking the raw material blank into blanks before a processing of the rotary tillage blade;
S4: orderly placing the blanks before the processing of the rotary tillage blade in multiple layers in the electric heating furnace to be heated to red blanks;
S5: completing a size processing such as a turning radius and a bending angle in a tangent plane on the heated red blanks through a bending step of the bending device, and processing an outline structure of the rotary tillage blade by means of the hot forging device;
S6: annealing the formed rotary tillage blade by means of the thermal treatment device, wherein as hardness values of a handle and a body are different, the thermal treatment device needs to be placed to perform a thermal treatment on the handle and the body, a surface hardness and a wear resistance of the handle and the body meet a requirement of technical indexes, wherein the surface hardness of the handle is controlled at 40 HRC, and the surface hardness of the body is controlled at 50 HRC; and
S7: spraying the rotary tillage blade subjected to the thermal treatment by means of the packaging device or cartoning a rotary tillage blade finished product.
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