METHOD FOR RESTORING THE WORKING BODIES OF CHISEL PLOWS Russian patent published in 2022 - IPC B23P6/00 B23K11/04 C23C4/12 A01B15/00 

FIELD: agricultural engineering.

SUBSTANCE: invention relates to the restoration of worn parts and can be used in the restoration of the working bodies of tillage machines’ chisel plows. The method includes the removal of the worn-out cutting-blade part of the working body, the manufacture of an overlay plate from a pre-prepared cutting-blade part of a billet of SHH15SG type rolled ball bearing steel 2.8 mm thick, prepared in width and length, and its welding to the restored working body by contact-spot welding. Hardening is carried out by flame plating. First, the sublayer is sprayed with a heat-sensitive powder 0.05-0.15 mm thick, and then the main layer is sprayed with a wear-resistant powder alloy 2.5-2.6 mm thick, while the sublayer and the main layer are applied under the same spraying conditions: oxygen pressure 0.35-0.45 MPa, acetylene pressure 0.03-0.05 MPa, oxygen consumption 960-1100 l/h, acetylene consumption 950-1050 l/h, the distance from the nozzle tip of the mouthpiece to the melting surface 160-200 mm, powder consumption 2.5-3 kg/h. Before spraying, the working body is heated to a temperature of 60-110°C.

EFFECT: invention makes it possible to increase the hardness and wear resistance of the restored working bodies in conditions of intense abrasive wear.

1 cl, 1 ex