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Hardfacing powder special for powder and gas feeding functional welding torch

A technology of powder and qigong, applied in welding equipment, welding medium, welding/cutting medium/material, etc., can solve the problems of high price, smoothness and poor wire feeding of flux-cored welding wire, so as to achieve easy preparation and promotion, and smooth wire feeding. , the effect of reducing update costs

Inactive Publication Date: 2012-08-01
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flux-cored wire is expensive, and wire feeding is not as smooth as solid wire during gas shielded welding
[0005] The application of the torch with dual functions of powder feeding and gas feeding has laid a foundation for obtaining a high-alloy wear-resistant alloy layer on the surface of the substrate, reducing the cost of welding materials, obtaining a good surface quality of the surfacing layer, reducing welding spatter, and improving arc stability. There are few reports on wear-resistant surfacing welding powder specially used for welding torches with powder feeding and gas feeding functions.

Method used

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  • Hardfacing powder special for powder and gas feeding functional welding torch
  • Hardfacing powder special for powder and gas feeding functional welding torch
  • Hardfacing powder special for powder and gas feeding functional welding torch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] For the structure of the welding torch with the function of powder feeding and gas feeding, see figure 1 . The specific dimensions are as follows:

[0040] A conductive rod is provided on the center line of the welding torch. The conductive rod is a cylinder with an outer diameter of Φ6mm. The inner diameter of the conductive rod is Φ3mm. The conductive rod is made of red copper. The thickness of the insulating layer between the conductive rod and the connector is 1 mm, and the insulator is made of high-temperature-resistant rubber. The nominal diameter of the threaded hole on the lower surface of the conductive rod is M3 (ie 3mm), and the height is 5mm. It is matched with the conductive tip, and the conductive tip is a commercially available conductive tip for gas shielded welding.

[0041] The two powder feeding pipes are symmetrically installed on both sides of the conductive rod. The powder feeding pipes are fixed on the connecting piece through two through holes ...

Embodiment 2

[0050] For the structure of the welding torch with the function of powder feeding and gas feeding, see figure 1 . The specific dimensions are as follows:

[0051] A conductive rod is provided on the center line of the welding torch. The conductive rod is a cylinder with an outer diameter of Φ7mm. The inner diameter of the conductive rod is Φ4mm. The conductive rod is made of red copper. The thickness of the insulating layer between the conductive rod and the connector is 2 mm, and the insulator is made of high-temperature-resistant rubber. The nominal diameter of the threaded hole on the lower surface of the conductive rod is M4, and the height is 8mm. It is matched with the conductive tip. The conductive tip is a commercially available conductive tip for gas shielded welding.

[0052] The two powder feeding pipes are symmetrically installed on both sides of the conductive rod. The powder feeding pipes are fixed on the connecting piece through two through holes with a diamet...

Embodiment 3

[0061] For the structure of the welding torch with the function of powder feeding and gas feeding, see figure 1 . The specific dimensions are as follows:

[0062] A conductive rod is provided on the center line of the welding torch. The conductive rod is a cylinder with an outer diameter of Φ6.5mm. The inner diameter of the conductive rod is Φ2.5mm. The conductive rod is made of red copper. The thickness of the insulation layer between the conductive rod and the connector is 1.5mm, and the insulator is made of high temperature resistant plastic. The nominal diameter of the threaded hole on the lower surface of the conductive rod is M3 (that is, the nominal diameter is 3mm), and the height is 6mm. It is matched with the conductive tip. The conductive tip is a commercially available conductive tip for gas shielded welding.

[0063] The two powder feeding pipes are symmetrically installed on both sides of the conductive rod. The powder feeding pipes are fixed on the connecting ...

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Abstract

The invention discloses hardfacing powder special for a powder and gas feeding functional welding torch. The hardfacing powder is formed by uniformly mixing 88-92wt% of alloy and 12-8wt% of slagging arc stabilizer. The powder provided by the invention is additionally provided with the slagging arc stabilizer besides the alloy element, so that the aims of stabilizing an electric arc, reducing splashing conditions and improving the forming quality of a welding line are achieved; and a uniform slag layer with the thickness not more than 0.5mm is formed on the surface of the welding line during application and slag removal is not needed during multilayer overlaying, therefore, the production efficiency is increased.

Description

technical field [0001] The invention relates to a powder for welding, in particular to an anti-abrasive wear-resistant and wear-resistant surfacing welding powder specially used for a welding torch with the function of powder feeding and gas feeding; it belongs to the field of welding materials. Background technique [0002] At present, welding wear-resistant alloys on the surface of core parts with good toughness and plasticity is a common method to improve the life of parts. It has the advantages of wear resistance, impact resistance, and low cost. be widely used. Surfacing welding, thermal spraying, vapor deposition, electroplating and other technologies are common methods for depositing wear-resistant alloys. Surfacing welding is widely used because of its simple process, low equipment investment, flexible operation and wide adaptability. [0003] The welding materials commonly used in surfacing welding include welding rods, solid welding wires, and flux-cored welding ...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/362
Inventor 孙俊生王好猛焦恩理
Owner SHANDONG UNIV
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