Surfacing technique for 16MnR0Cr18Ni9

Abstract

The invention discloses a surfacing technique for 16MnR0Cr18Ni9. The surfacing technique is characterized by comprising the following steps that (1) a test board is selected; (2) a welding material is determined, specifically, A302 welding rods serve as a transition layer of the welding material, and A102 welding rods serve as a composite layer; (3) surfacing is conducted, specifically, the surfacing face of the test board is polished through an electric grinding machine till metallic luster appears before surfacing, the welding rods are roasted for 1 h at the temperature of 150 DEG C, the welding rods are placed in a welding rod insulating cylinder and taken instantly during welding, surfacing is conducted by four layers, a symmetrical welding method is adopted by each layer of surfacing, the welding direction of the second layer is perpendicular to that of the first layer, the rest of the layers can be done in the same manner, the second layer is subjected to surfacing after surfacing of the first layer is finished, the weld joint appearance is supposed to be checked after surfacing of each layer is finished during surfacing, and defects including pores, slag inclusion and cracks are not allowed; and (4) after surfacing is finished, stress relief heat treatment is conducted, and welded parts are placed in an automatic temperature-control electric furnace to be subjected to the stress relief heat treatment. The surfacing technique is reasonable in procedure and low in manufacturing cost.

Description

technical field [0001] The invention relates to a 16MnR0Cr18Ni9 surfacing welding process. Background technique [0002] The existing 16MnR0Cr18Ni9 surfacing process has unreasonable process arrangement, numerous processes, unreasonable selection of process parameters, unreasonable collocation of process parameters, and high requirements for operator experience, resulting in high production costs, low product quality, and low product quality. The rate is not high. Contents of the invention [0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a 16MnR0Cr18Ni9 surfacing process with reasonable process and low manufacturing cost. [0004] To achieve the above object, the present invention provides [0005] A kind of 16MnR0Cr18Ni9 overlay welding process, comprises the steps: [0006] 1), the test plate; the test plate is made of 16MnR steel plate, the specification is 200mm×200mm×30mm, an...

AI Technical Summary

Problems solved by technology

[0002] The existing 16MnR0Cr18Ni9 surfacing process has unreasonable process arrangement, numerous processes, unreasonable selection of process parameters, unreasonable collocation of process parameters, and high requirements for operator experience, resulting in high production costs, low product quality, and low product quality. rate is not high