Abrasive wear resistant weld deposit flux-cored wire

Abstract

The invention discloses an overlaying welding agent core welding wire with abrasive wear resistance. A steel strip is wrapped with alloy powder and is subjected to drawing path by path and diameter reduction through a wire-drawing die to form the overlaying welding agent core welding wire, wherein the diameter of the overlaying welding agent core welding wire is between 2.4 and 3.2 mm; the length of the overlaying welding agent core welding wire is freely set; the steel strip is one of an SPCC steel strip, a 08A steel strip and a 08Al steel strip with width of between 18 and 22 mm and thickness of 0.45 and 0.6 mm; and the aluminum alloy powder is manufactured from waste steel and an alloying agent. The overlaying welding agent core welding wire is designed according to the composition requirement of overlaying welding metal; and compositions are fully homogenized in the smelting process of pulverization, thereby overcoming the disadvantages that the prior medicine powder for producing the overlaying welding agent core welding wire adopts a mechanical mixing process to easily cause unevenness of the compositions. The overlaying welding agent core welding wire uses the waste steel as one of raw materials of the overlaying welding agent core welding wire with abrasive wear resistance, fully utilizes contained alloy elements, improves the utilization rate of the alloy elements, reduces the cost for the overlaying welding agent core welding wire and achieves the aims of energy conversation and emission reduction.

Description

technical field

[0001] The invention relates to a welding material, in particular to an anti-abrasive wear-resistant surfacing flux-cored welding wire and a preparation method thereof. Background technique

[0002] At present, the best solution to improve the wear resistance of components and prolong their service life is to prepare a wear-resistant layer on the surface of core parts that are cheap and have good toughness and plasticity. Surfacing, thermal spraying, vapor deposition, electroplating and other technologies are common methods for preparing wear-resistant layers. Surfacing welding is widely used because of its simple process, low equipment investment, flexible operation and wide adaptability. Since the composition of flux-cored wire is quite convenient to adjust, the use of flux-cored wire for surfacing has become the most common process.

[0003] Flux-cored wire consists of a thin-walled steel tube filled with mixed powder. The manufacturing process for flux...