KR20160127256A - Rolling roll - Google Patents
Rolling roll Download PDFInfo
- Publication number
- KR20160127256A KR20160127256A KR1020150057997A KR20150057997A KR20160127256A KR 20160127256 A KR20160127256 A KR 20160127256A KR 1020150057997 A KR1020150057997 A KR 1020150057997A KR 20150057997 A KR20150057997 A KR 20150057997A KR 20160127256 A KR20160127256 A KR 20160127256A
- Authority
- KR
- South Korea
- Prior art keywords
- radius
- rolling roll
- shape
- metal wire
- spherical
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/024—Rolls for bars, rods, rounds, tubes, wire or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/18—Rolls or rollers
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The present invention relates to a rolling roll used in a metal wire production process, in which one or more balls are formed, comprising: a first spherical surface (110) having a predetermined radius (R) (R ') greater than a radius (R) of the first cavity surface (110) on both sides of the first cavity surface (110) and a vertical axis And a second concave surface 120 having a center point C 'on the first concave surface 110. The first concave surface 110 and the second concave surface 120 are connected to each other, One or more of them.
Description
The present invention relates to a rolling roll having a hollow shape for metal wire processing, and more particularly, to a rolling roll (10) used in a metal wire production process, in which at least one ball is formed, (R ') greater than a radius (R) of the first cavity surface (110) on both sides of the first cavity surface (110), the first cavity surface , And a second spherical surface (120) having a center point (C ') on a vertical axis on which the center point (C) of the first spherical surface (110) is located, the first spherical surface The present invention relates to a
Generally, a metal wire is used in a semiconductor industry field, etc., and is subjected to a circular forging operation in which a molten metal is melted and a molten metal is kneaded or pressed with a hammer or the like by a mechanical method, A cross-section is rolled through a material to form a square bar, and the material is passed through a circular dies die and drawn to reduce the cross-section.
In the rolling process during the metal wire forming process, the two rolling rolls are vertically positioned and rotated in opposite directions to each other, passing through the wire base material between the square shaped cavities formed on the outer circumferential surface of the rolling roll, A square bar is formed by forming the square shape of the square shape.
However, when a rectangular rod formed through a rolling roll having a rectangular-shaped ball is passed through a circular dies die, the rectangular corner angle of the wire cross-section turns into a round shape, This compressive force causes wrinkles to occur, which causes a problem of overlapping and fine cracks on the wire surface during wire processing.
In addition, it is possible to manufacture a wire using an expensive metal material such as platinum and to use it as an electrode for cleaning in an electrolytic electrode and a semiconductor process. However, since the wire base material rolled through the rolling roll having the square- When used as an electrolytic electrode, ionic discharge occurs due to micro-cracks remaining on the surface of the wire, making it difficult to use for a long time, and the released ions act as impurities, making it impossible to use the electrode as a cleaning electrode in a semiconductor process, When used for fastening, small scratches and fine cracks are used at a high temperature (1200 ° C. or higher) and exposed to the atmospheric gas to accelerate the curing speed, shortening the time required for dropping off, There is a problem that the productivity due to replacement is deteriorated.
In order to solve such a problem, a "roll type integral type hollow roll for rolling material" of the following Patent Document 1 has a roll body mounted on a rolling mill and rotated and driven; A hollow body integrally formed with the roll body and having a plurality of carvers for rolling the material; And a hollow portion slip preventing means provided cooperatively in close contact with the roll body to prevent slip between the roll body and the hollow portion; Is disclosed.
However, in the above-described conventional method, since the circular shape formed on the outer circumferential surface of the rolling roll is formed in a circular shape, when the wire is formed into a circular shape through the rolling process, only the rolling roll is idle, .
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a rolled metal roll Can be formed into an elliptical shape and a circular shape so that the generation of wrinkles on the surface of the metal wire when passing through a circular dies mold for drawing operation is effectively reduced so that fine scratches and overlapping phenomena do not occur on the surface of the wire To rolling rolls provided with balls for metal wire processing.
In addition, since fine scratches and overlapping phenomena do not remain on the surface of the wire, it is possible to increase the service life of metal wires using expensive precious metals such as platinum and to reduce the cost of repetitive replacement, Rolling roll.
In order to solve the above problems, a rolling roll having a hollow shape for metal wire processing according to the present invention is used in a metal wire production process, and in a rolling roll having at least one ball shape, (R ') greater than a radius (R) of the first spherical surface (110) on both sides of the first spherical surface (110), the first spherical surface , And a second spherical surface (120) having a center point (C ') on a vertical axis on which the center point (C) of the first spherical surface (110) is located, the first spherical surface ) And the second spherical surface (120) are connected to each other.
Also, the
The first concave surface forming depth (H) has a value of 0.25 to 0.5 of the first concave surface radius, and the radius (R ') of the second concave surface is a value of the first concave surface radius (R) And has a value of 1.2 to 1.5.
The
The radius R of the first spherical sides may be sequentially arranged in a ratio of 0.65 to 0.75 times the outer circumferential surface of the
As described above, according to the present invention, since the first and second spherical surfaces having different radii of curvature are formed to be connected to each other, the spherical shape formed along the outer circumferential surface of the rolling roll is formed by connecting the rolled metal The shape of the material is shaped into an ellipse and a circle so that the occurrence of wrinkles on the surface of the metal wire when passing through a circular dies frame for drawing work is effectively reduced to prevent fine scratches and overlapping on the wire surface There are advantages to be able to.
In addition, the use period of the wires manufactured using expensive precious metals such as platinum can be increased to reduce the cost due to repetitive replacement, and the productivity can be improved.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing a state in which a rolling roll having a hollow shape for metal wire processing is vertically engaged with a rolling roll according to a preferred embodiment of the present invention. FIG.
2 is a front view showing a configuration of a rolling roll having a hollow shape for metal wire processing according to a preferred embodiment of the present invention;
FIG. 3 is an enlarged view showing a configuration of a ball formed in a rolling roll having a ball shape for metal wire processing according to a preferred embodiment of the present invention. FIG.
Hereinafter, the present invention will be described in detail with reference to the drawings. Like reference symbols in the drawings denote like elements.
FIG. 1 is a plan view showing a state in which a rolling roll having a hollow shape for metal wire processing according to a preferred embodiment of the present invention is vertically engaged. FIG. 2 is a plan view of a roll for metal wire processing according to a preferred embodiment of the present invention. FIG. 3 is an enlarged view showing a configuration of a ball formed in a rolling roll having a hollow for metal wire processing according to a preferred embodiment of the present invention. FIG.
Referring to FIGS. 1 to 3, a rolling roll having a hollow shape for metal wire processing according to a preferred embodiment of the present invention includes a hollow 100, a first
At least one of the
In this case, as the shape of the metal wire after the rolling process is formed into the elliptical shape and the circular shape, even though the metal wire is passed through the circular dies die and the drawing operation is performed to reduce the cross- It is possible that there is no occurrence of fine cracks and overlapping of the wire ends.
The
Wherein the second
Due to the
On the other hand, the first concave surface formation depth H is set to be 0.25 or less of the radius R of the
In this case, it is more preferable that the first concave surface formation depth H has a value which is one third of the radius R of the
The radius R of the second
Due to the above-described structure, it is possible to roll the metal wire base material in elliptical and circular shapes without forming a protruding portion on the wire surface. Accordingly, even if a wire passes through a round dies die for a drawing operation, wrinkles are generated on the surface of the wire due to the compression force of the die, there is no phenomenon of micro cracks, and there is a problem that wire surface overlapping occurs .
Next, the first and second
In this case, as the first and second
In addition, when the metal wire is processed through the
Particularly, since it is possible to easily process platinum wires used in various fields such as electrolytic electrodes and cleaning electrodes in a semiconductor process, it is difficult to use for a long time due to the generation of ions due to micro cracks remaining on the wire surface. So that it becomes impossible to use the ion as a cleaning electrode in a semiconductor process.
Next, the
According to this configuration, it is not necessary to provide a rolling roll having a single-size ball shape for each size of the coarse size so as to process a wire of a desired size, so that a rolling device for metal wire processing is operated on a small scale It is possible.
Optimal embodiments have been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.
10: rolling roll 100:
110: first cavity surface 120: second cavity surface
130: Spline curve connection
Claims (5)
A first cavity surface (110) having a predetermined radius (R) and having a shape of a part of a surface circle;
(R ') greater than a radius (R) of the first cavity surface (110) at both sides of the first cavity surface (110) and a center point (C) of the first cavity surface And a second spherical surface (120) having its center point (C ') on the vertical axis,
The rolling roll (10) having a hollow shape for metal wire processing, characterized in that it comprises at least one ball shape (100) formed by connecting the first and second spherical surfaces (110, 120) .
Wherein the first radius of curvature (110) is formed to a position of a first radius of curvature (H) less than a radius (R).
The first concave surface forming depth H has a value of 0.25 to 0.5 times the radius R of the first concave surface 110,
Characterized in that the radius R of the second spherical surface 120 has a value of 1.2 to 1.5 times the radius R of the first spherical surface 110. [ Roll (10).
Wherein the first and second spherical surfaces 110 and 120 are formed by a spline curve connecting portion 130. The rolling roll 10 having a hollow shape for metal wire processing.
The rolls (100) are arranged in order from one side to the other along the outer circumferential surface of the rolling roll (10)
And a radius R of the first radius of curvature is sequentially decreased in a ratio of 0.65 to 0.75 times.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150057997A KR101753697B1 (en) | 2015-04-24 | 2015-04-24 | Rolling roll |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150057997A KR101753697B1 (en) | 2015-04-24 | 2015-04-24 | Rolling roll |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20160127256A true KR20160127256A (en) | 2016-11-03 |
KR101753697B1 KR101753697B1 (en) | 2017-07-05 |
Family
ID=57571456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150057997A KR101753697B1 (en) | 2015-04-24 | 2015-04-24 | Rolling roll |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101753697B1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100782751B1 (en) | 2006-07-13 | 2007-12-05 | 주식회사 포스코 | Wire rod rolling roll |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100356160B1 (en) | 1997-12-23 | 2002-11-18 | 주식회사 포스코 | Roll for wire rod and the rolling method using the roll |
KR100437636B1 (en) | 1999-12-29 | 2004-06-26 | 주식회사 포스코 | Folding defects removal method of sheet surface |
-
2015
- 2015-04-24 KR KR1020150057997A patent/KR101753697B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100782751B1 (en) | 2006-07-13 | 2007-12-05 | 주식회사 포스코 | Wire rod rolling roll |
Also Published As
Publication number | Publication date |
---|---|
KR101753697B1 (en) | 2017-07-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101245228B1 (en) | manufacturing method of big size ball using a ball-valve | |
JP2007222923A (en) | Method for producing ring forging material | |
TWI711498B (en) | Formed material manufacturing method and formed material | |
KR101753697B1 (en) | Rolling roll | |
US10315240B2 (en) | Punching processing method, method of manufacturing press-formed product, and press-formed product | |
JP5183084B2 (en) | Cylindrical product, manufacturing method and manufacturing apparatus thereof | |
US20150122101A1 (en) | Trough-form fine blanking device | |
CN109822026B (en) | Method for manufacturing special-shaped blank and die used in method | |
CN109759531B (en) | X-section drawing method based on center compaction | |
KR101622395B1 (en) | Metalworking process using severe shear deformation by repetitive torsion | |
CN209792395U (en) | Shaft sleeve processing die | |
JP2005177790A (en) | Method for bending metallic sheet | |
JP7070287B2 (en) | Manufacturing method of press-molded parts and press-molded parts | |
KR101603597B1 (en) | Form rolling die of gear | |
JP4456599B2 (en) | Flat steel manufacturing method | |
KR100903266B1 (en) | Production Method of Multi Gauge Strips | |
KR102111275B1 (en) | Die for rolling of rod for worm gear | |
JP5286506B2 (en) | Pipe bending machine | |
JP2008002673A (en) | Ball roller rolling element | |
KR102348556B1 (en) | Roll Forging Apparatus | |
CN102896157A (en) | Stable rolling control device | |
KR101071659B1 (en) | A tie rod end and molding apparatus for manufacturing thereof | |
KR200421133Y1 (en) | Flat type dies for worm in rolling machine | |
JP5155741B2 (en) | Manufacturing method of round steel bar | |
CN106964739A (en) | A kind of metal forging equipment with cambered surface tup at an angle to each other |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
GRNT | Written decision to grant |