JPH02194193A - Device for repairing metallic base - Google Patents

Abstract

PURPOSE:To overlay a stabilized plating layer on the part to be repaired at high speed by making a nozzle part consisting of a double-pipe structure in which a plating soln. is jetted and refluxed and having an electrode part at its tip of the inner pipe closely attachable to the part of a metallic base to be repaired. CONSTITUTION:The nozzle part 1 has the double-pipe structure consisting of the outer pipe 2 to be closely attached to the part M of the metallic base to be repaired and the inner pipe 3 inserted into the outer pipe 2, and the electrode part 4 is provided at the tip of the inner pipe 3. A packing 5 is furnished at the tip of the outer pipe 2. The nozzle part 1 is firstly closely attached to the part M, a potential difference is provided between the nozzle part and the electrode part 4, and then a high-temp. plating soln. W is jetted against the part M from the inner pipe 3. The soln. W is jetted between the electrode part 4 and the part M in this way to deposit a plating layer consisting of metal ions on the part M. In this case, the ion concn. in the soln. W is increased, the temp. is elevated, and further the flow velocity is increased to overlay a thick plating layer in a short time.

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a method for repairing metal bases applied to, for example, repairing molds, metal jigs, tools, or parts of machines. When repairing a metal base, for example, wrap a cotton cloth around the tip of a graphite electrode rod to create a potential difference between it and the repaired part of the metal base, impregnate the cotton cloth with plating solution, and patiently move it back and forth. At present, a plating layer made of metal ions is deposited on the repaired area.

[Problems to be Solved by the Invention] However, there is no method for repairing metal bases with such a conventional structure, so-called "brush plating."

Since the repair work is a painstaking manual process, it is extremely troublesome and requires a great deal of effort and time, and it is not possible to build up a stable plating layer locally on the repaired area, resulting in damage caused by carelessness. Not only is plating adhesion failure likely to occur, but as the thickness of the plating layer increases, the repaired surface becomes more likely to become rough, making it difficult to build up thick walls.

The present invention was made under the above circumstances, and its purpose is to provide a metal base repair device that has a simple configuration and can quickly perform overlaying by plating. It's about doing.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a repair device that locally builds up a repaired part of a metal base by plating, in which a plating liquid is jetted or The nozzle part has an inner-outer double pipe structure for reflux, and an electrode part is provided at the tip of the inner pipe of this nozzle part, and the nozzle part is brought into close contact with the repaired part of the metal base, and the electrode part and A potential difference is provided between the repair portions, and a high temperature plating solution is jetted from the nozzle portion between the electrode portion and the repair portion.

[Function] That is, with the above configuration, the present invention jets the high-temperature plating solution from the nozzle part between the electrode part and the repaired part, so that the plating layer is deposited on the repaired part at high speed. As a result, the repaired portion is quickly filled up.

[Example] Hereinafter, the present invention will be described in detail with reference to an illustrated example.

FIG. 1 shows a metal base repair apparatus according to the present invention, and numeral 1 in the figure is a nozzle section. This nozzle part 1 has an outer tube 2 that is tightly attached to a repaired part M made of metal.

It has a double tube structure with an inner tube 3 inserted into the outer tube 2, and an electrode section 4 is provided at the tip of the inner tube 3.

Further, numeral 5 in the figure is a gasket provided at the tip of the outer tube 2.

The plating solution W is jetted from the inner tube 3 toward the repaired portion M of the metal base, and
The plating solution W after this jet flow is discharged from a discharge port 6 provided in the outer tube 2 and is circulated.

That is, the above-mentioned repair device first brings the nozzle part 1 into close contact with the repair part M of the metal base, creates a potential difference between the nozzle part 1 and the electrode part 4, and then removes high-temperature plating from the inner tube 3 of the nozzle part 1. By jetting the liquid W between the electrode portion 4 and the repaired portion M of the metal base, a plating layer made of metal ions is deposited on the repaired portion M of the metal base. In this case, by increasing the ion concentration of the plating solution W, raising the temperature, and further increasing the flow rate, it becomes possible to deposit a plating layer on the repaired portion M of the metal base in a short time.

Furthermore, since the structure is such that a high-temperature plating solution is jetted from the nozzle part between the electrode part and the repair part, a stable plating layer can be deposited at high speed on the repair part. This has the excellent effect of being able to quickly fill up the parts.

[Brief explanation of the drawing]

FIG. 1 is a sectional view schematically showing an embodiment of a metal base repair apparatus according to the present invention. [Effects of the Invention] As is clear from the above description, according to the present invention, there is provided a repair device that locally builds up a repaired portion of a metal base by plating, and includes two inner and outer parts where a plating solution is jetted and circulated. It includes a nozzle part made of a double pipe structure and an electrode part provided at the tip of the inner pipe of this nozzle part, and the nozzle part is brought into close contact with the repaired part of the metal base, and a potential difference is created between the electrode part and the repaired part. 1, 3, 5, W, M, and nozzle parts. Inner tube, Patsukin. plating liquid. Repair part of metal base. 2... Outer tube, 4... Electrode part, 6... Outlet,

Claims (1)

[Claims] (1) A repair device that locally builds up the repaired part of a metal base by plating, and includes a nozzle part with a double inner and outer pipe structure through which the plating liquid flows and flows, and the tip of the inner pipe of this nozzle part. the nozzle part is brought into close contact with the repaired part of the metal base, and a potential difference is provided between the electrode part and the repaired part, and a high-temperature plating solution is applied from the nozzle part to the electrode part and the repaired part. A metal base repair device characterized in that a jet is made to flow between the repaired parts.