KR-20260065083-A - electro-polishing method

KR20260065083AKR 20260065083 AKR20260065083 AKR 20260065083AKR-20260065083-A

Abstract

The present invention relates to an electrolytic polishing method, and more specifically, to an electrolytic polishing method in which electrolytic polishing is performed on a welded area. The present invention discloses an electrolytic polishing method comprising: a first introduction step (S100) of introducing a first polishing target through an introduction section (10); a first transfer step (S200) of gripping the first polishing target through a transfer robot (20) and transferring it to an electrolytic polishing device (30); a first polishing step (S300) of performing electrolytic polishing on a welded portion (2) of the first polishing target through the electrolytic polishing device (30); a first drying step (S400) of drying the first polishing target after electrolytic polishing has been performed through the first polishing step (S300); and a first discharge step (S500) of transferring the first polishing target to a discharge section (40) and discharging it to the outside after the first drying step (S400).

Inventors

김호진
김태욱
안병운
심우재
김정우

Assignees

주식회사 원익홀딩스

Dates

Publication Date: 20260508
Application Date: 20241031

Claims (8)

An electrolytic polishing method using an automatic electrolytic polishing system comprising: an introduction unit (10) for introducing the above-mentioned object to be polished (1) from the outside; a transfer robot (20) for gripping and transporting the above-mentioned object to be polished (1); an electrolytic polishing device (30) for performing electrolytic polishing on the above-mentioned object to be polished (1); a drying unit (50) for receiving the above-mentioned object to be polished (1), which has undergone electrolytic polishing through the electrolytic polishing device (30), via the transfer robot (20) and drying it; and a discharge unit (40) for discharging the above-mentioned object to be polished (1), which has completed electrolytic polishing, to the outside. A first introduction step (S100) for introducing a first object to be polished through the above introduction part (10); A first transfer step (S200) of gripping the first object to be polished through the transfer robot (20) and transferring it to the electrolytic polishing device (30); A first polishing step (S300) for performing electrolytic polishing on the welded portion (2) of the first polishing target through the electrolytic polishing device (30); A first drying step (S400) for drying the first polished object on which electrolytic polishing has been performed through the first polishing step (S300); An electrolytic polishing method characterized by including a first discharge step (S500) in which, after the first drying step (S400), the first polishing object is transferred to the discharge unit (40) and discharged to the outside.
In claim 1, The above first grinding step (S300) and the above first drying step (S400) are, An electrolytic polishing method characterized by being performed repeatedly in sequence multiple times.
In claim 1, A second introduction step (S600) for introducing a second object to be polished through the above introduction section (10); A second transfer step (S700) of gripping the second object to be polished through the transfer robot (20) and transferring it to the electrolytic polishing device (30); A second polishing step (S800) for performing electrolytic polishing on the welded portion (2) among the second polishing targets through the electrolytic polishing device (30); A second drying step (S900) for drying the second object to be polished, on which electrolytic polishing has been performed through the second polishing step (S800); An electrolytic polishing method characterized by including a second discharge step (S1000) in which, after the second drying step (S900), the second object to be polished is transferred to the discharge unit (40) and discharged to the outside.
In claim 3, The above second introduction step (S600) is, An electrolytic polishing method characterized by being performed immediately after the first introduction step (S100) above.
In claim 3, The above second transfer step (S700) and the above second grinding step (S800) are, Electrolytic polishing method characterized by being performed during the above first drying step (S400).
In claim 3, The above second outflow step (S1000) is, An electrolytic polishing method characterized by being performed immediately after the first removal step (S500) above.
In claim 3, The above second polishing step (S800) and the above second drying step (S900) are, An electrolytic polishing method characterized by being performed repeatedly in sequence multiple times.
In claim 3, An electrolytic polishing method characterized in that the first polishing step (S300) is performed during the second drying step (S900).

Description

Electro-polishing method The present invention relates to an electrolytic polishing method, and more specifically, to an electrolytic polishing method in which electrolytic polishing is performed on a welded area. Polishing is generally a process of smoothing the surface of a metal and can be classified into mechanical polishing and electrochemical polishing. Among these, electrochemical polishing, primarily known as electrolytic polishing, refers to a polishing method performed through the selective dissolution of the metal surface using a solution and electrical action. Electropolishing of this type has the advantage of flattening the surface and enhancing gloss by selectively dissolving micro-protrusions on the metal surface, and increasing corrosion resistance by forming a passivation film, which is a thin oxide film. Accordingly, electropolishing has recently become essential in various fields, including the semiconductor sector, and is particularly being performed for the post-treatment of welded parts of various workpieces. However, conventional electrolytic polishing methods have low efficiency because the user must manually immerse the object to be polished in the electrolyte and apply power to perform polishing on the surface, and there is a problem in that partial polishing of a small area, such as a welded area, cannot be performed. Accordingly, conventional electrolytic polishing methods have the problem of excessive waste of the solution provided for performing electrolytic polishing on limited welded areas. In addition, conventional electrolytic polishing methods have a problem of low versatility because, even when performing selective automatic electrolytic polishing on welded areas, precise polishing cannot be performed in response to various welded areas of the object to be polished. In addition, conventional electrolytic polishing methods have the problem of low process efficiency because the processes before and after electrolytic polishing are handled manually or sequentially. FIG. 1 is a plan view showing the appearance of an automatic electrolytic polishing system according to the present invention. Figure 2 is a drawing showing the appearance of the polishing target identification module of the automatic electrolytic polishing system according to Figure 1. FIGS. 3a and 3b are a front view showing the appearance of an electrolytic polishing device according to the present invention and a cross-sectional view showing the internal appearance. Figure 4 is a perspective view showing the electrolytic polishing of the electrolytic polishing device according to Figure 3a. FIGS. 5a and 5b are a side view and an enlarged view showing the appearance of the polishing section of the electrolytic polishing device according to FIG. 3a. FIG. 6 is a perspective view showing the cleaning of the electrolytic polishing device according to FIG. 3a. Figure 7 is a side view showing the cleaning section of the electrolytic polishing device according to Figure 3a. FIGS. 8A and FIGS. 8B are plan views showing parts of the interior of the drying module of the electrolytic polishing system according to FIG. 1. Figure 9 is a drawing showing the appearance of the discharge section and the inspection section of the electrolytic polishing system according to Figure 1. FIG. 10 is a flowchart showing an electrolytic polishing method according to the present invention. FIG. 11 is a flowchart showing another embodiment of the electrolytic polishing method according to FIG. 10. The electrolytic polishing device according to the present invention, the automatic electrolytic polishing system including the same, and the electrolytic polishing method are described in detail below with reference to the attached drawings. As shown in FIG. 1, the automatic electrolytic polishing system according to the present invention comprises: an introduction unit (10) for introducing the object to be polished (1) from the outside; a transfer robot (20) for gripping and transporting the object to be polished (1); an electrolytic polishing device (30) for performing electrolytic polishing on the object to be polished (1) while it is gripped by the transfer robot (20); and an output unit (40) for transporting the object to be polished (1), which has been electrolytically polished through the electrolytic polishing device (30), to the outside. In addition, the automatic electrolytic polishing system according to the present invention may further include a drying unit (50) that receives the object to be polished (1), which has been electrolytically polished through the electrolytic polishing device (30), via the transfer robot (20) and dries it. In addition, the automatic electrolytic polishing system according to the present invention may further include a polishing target identification unit (60) installed in the introduction unit (10) to perform identification of the polishing target (1) introduced therein. In addition, the automatic electr