US20130319649A1 - Cooling ring for welding bellows generating less metal powder - Google Patents
Cooling ring for welding bellows generating less metal powder Download PDFInfo
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- US20130319649A1 US20130319649A1 US13/985,986 US201213985986A US2013319649A1 US 20130319649 A1 US20130319649 A1 US 20130319649A1 US 201213985986 A US201213985986 A US 201213985986A US 2013319649 A1 US2013319649 A1 US 2013319649A1
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- Prior art keywords
- barrier
- cooling ring
- parts
- weight
- welding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/047—Metallic bellows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
Definitions
- the present invention relates to a cooling ring for welding a bellows, and more particularly, to a cooling ring for welding a bellows, which does not generate powder of a metal having high electrical conductivity such as copper, aluminum, gold, and silver during a welding process.
- Bellows are wrinkled tubes capable of maintaining a gastight seal and simultaneously with stretching, which are generally used in vacuum devices, semiconductor manufacturing equipment, small industrial machines, and precision machinery.
- FIGS. 1 and 2 illustrate an example of a bellows 100 .
- the bellows 100 is used while both ends thereof are being coupled with flanges 1 .
- a plurality of pairs of barriers 10 and 20 are arranged in a line in which a first barrier 10 and a second barrier 20 disposed to face the first barrier 10 form one pair thereof and the first barriers 10 and the second barriers 20 , adjacent to each other are alternately connected to have the shape of a wrinkled tube.
- the first barrier 10 and the second barrier 20 are manufactured by pressing respective metallic sheets, as shown in FIG. 4 , an inner circumferential surface welding part IW is formed by welding inner ends of the first barrier 10 and the second barrier to one another, as shown in FIG. 5 , the plurality of pairs of barriers 10 and 20 welded by the inner circumferential surface welding parts IW are arranged in one line, and as shown in FIG. 6 , an outer circumferential surface welding part OW is formed by welding outer ends of the first barrier 10 and the second barrier 20 of mutually adjacent pairs to one another.
- cooling rings 30 and 130 for welding a bellows formed of respective metallic materials, whose planar shapes are shown in FIGS. 7 and 8 and cross-sectional shapes are shown in FIGS. 6 and 9 .
- the cooling rings 30 and 130 are inserted between outer ends of the first barrier 10 and the second barrier 20 of each of the pairs to maintain a distance between the outer ends of the first barrier 10 and the second barrier 20 to be uniform in such a way that the first barrier 10 and the second barrier 20 are attached and clamped closely to each other while rapidly dissipating welding heat generated when forming the outer circumferential surface part OW.
- the typical cooling rings 30 and 130 are formed of a soft metal such as copper, a copper alloy, aluminum, gold, and silver, metallic powder such as minute copper powder or aluminum powder are left on an outer circumferential surface of the bellows 100 after using the cooling rings 30 and 130 . Since such metallic powder has high electrical conductivity, when the bellows 100 is used for a semiconductor device, a defect is caused by an electrical short-circuit due to the metallic powder in a semiconductor manufacturing process.
- the cooling rings 30 and 130 before mounting the bellows 100 on a semiconductor device, it is necessary to remove metallic powder such as copper powder left on the outer circumferential surface of the bellows 100 .
- metallic powder such as copper powder left on the outer circumferential surface of the bellows 100 .
- the copper powder is very chemically stable and has high adsorption due to properties of copper, it is not easily removed from a surface of the bellows 100 by spraying high pressure gas or chemically cleaning. Accordingly, it is necessary to manually remove residual copper powder on the outer circumferential surface of the bellows 100 one by one by a worker.
- the present invention provides a cooling ring for welding a bellows, whose configuration is improved not to generate powder of a metal having high electrical conductivity, such as copper, aluminum, gold, and silver, during a welding process
- a cooling ring for welding used to manufacture a bellows including a plurality of pairs of barriers, in which each pair is formed of a first barrier and a second barrier disposed to face the first barrier.
- the cooling ring includes a body formed as a circular arc shape, disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier, the body including copper and a plating layer plating the body.
- the plating layer includes at least one selected from the group consisting of nickel and chrome.
- the plating layer may contain 99 or more parts by weight of nickel for the total 100 parts by weight.
- the plating layer may contain 99 or more parts by weight of chrome for the total 100 parts by weight.
- a cooling ring for welding used to manufacture a bellows including a plurality of pairs of barriers, each pair being formed of a first barrier and a second barrier disposed to face the first barrier.
- the cooling ring is disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier.
- the cooling ring includes at least one selected from the group consisting of tungsten, molybdenum, nickel, and chrome.
- the cooling ring may contain 99 or more parts by weight of tungsten for the total 100 parts by weight.
- the cooling ring may contain 99 or more parts by weight of molybdenum for the total 100 parts by weight.
- the cooling ring may contain 99 or more parts by weight of nickel for the total 100 parts by weight.
- the cooling ring may contain 99 or more parts by weight of chrome for the total 100 parts by weight.
- the cooling ring includes the body having the circular arc shape including copper and the plating layer plating the body, it is possible to prevent powder of a metal having high electrical conductivity, such as copper, aluminum, gold, and silver, during a welding process.
- FIG. 1 is a cross-sectional perspective view illustrating a general bellows
- FIG. 2 is a cross-sectional view illustrating the bellows shown in FIG. 1 , cut along a line II-II;
- FIG. 3 is a cross-sectional view illustrating a state in which a first barrier and a second barrier manufactured by pressing respective metallic sheets are arranged to face each other;
- FIG. 4 is a cross-sectional view illustrating a state in which inner ends of a pair of the first barrier and the second barrier shown in FIG. 3 are welded to each other to form an inner circumferential surface welding part;
- FIG. 5 is a cross-sectional view illustrating a state in which, when a plurality of pairs of barriers welded at inner circumferential surface welding parts are arranged in a line, cooling rings for welding a bellows are inserted between outer ends of the first barriers and second barriers of the respective pairs thereof;
- FIG. 6 is a cross-sectional view illustrating a state in which outer ends of a mutually adjacent pair of the first barrier and the second barrier are welded to each other to form outer circumferential surface welding parts;
- FIG. 7 is a top view illustrating an example of the cooling ring shown in FIG. 5 ;
- FIG. 8 is a top view illustrating another example of the cooling ring shown in FIG. 5 ;
- FIG. 9 is a cross-sectional view illustrating a state in which outer ends of a mutually adjacent pair of the first barrier and the second barrier are welded to each other to form outer circumferential surface welding parts, using cooling rings for welding a bellows, which has another cross-sectional shape in addition to a circular shape;
- FIG. 10 is a cross-sectional view illustrating a cooling ring for welding a bellows according to an embodiment of the present invention.
- FIG. 11 is a cross-sectional view illustrating a cooling ring for welding a bellows according to another embodiment of the present invention.
- FIG. 12 is a cross-sectional view illustrating a cooling ring for welding a bellows according to still another embodiment of the present invention.
- FIG. 13 is a cross-sectional view illustrating a cooling ring for welding a bellows according to yet another embodiment of the present invention.
- FIG. 14 is a view illustrating a state in which inner ends of a pair of the first barrier and a second barrier are welded to each other by using the cooling rings shown in FIG. 12 ;
- FIG. 15 is a partially enlarged view illustrating a circled portion XV of the cooling rings shown in FIG. 14 ;
- FIG. 16 is a view illustrating a state in which an inner circumferential surface welding part is formed on the inner ends of the pair of the first barrier and the second barrier welded to each other by using the cooling rings shown in FIG. 15 .
- FIG. 7 is a top view illustrating a cooling ring 30 for welding a bellows according to an embodiment of the present invention
- FIG. 10 is a cross-sectional view illustrating the cooling ring 30 .
- the cooling ring 30 is used for manufacturing a bellows 100 and is, as shown in FIG. 1 , inserted into an interval between a first barrier 10 and a second barrier 20 in order to attach the first barrier 10 and the second barrier 20 closely to each other while being in contact with at least one of the first barrier 10 and the second barrier 20 .
- the cooling ring 30 includes a body 35 and a plating layer 36 .
- the body 35 is, as shown in FIGS. 7 and 10 , a ring element having the shape of a circular arc with a gap 33 and may include at least one of metals such as copper, an copper alloy, aluminum, gold, and silver, whose melting points are relatively low and electrical conductivities are relatively high.
- the body 35 is formed of copper.
- pure copper has heat conductivity of 401 W/m, a melting point of 1084, and Vickers hardness of 369 Mpa, in which the heat conductivity is relatively high and the Vickers hardness is relatively low.
- the plating layer 36 is a metallic layer plating the body 35 and includes at least one selected from the group consisting of nickel and chrome.
- the plating layer 36 contains 99 or more parts by weight of nickel for the total 100 parts by weight, which is close to pure nickel.
- pure nickel has heat conductivity of 90.9 W/m, a melting point of 1455, and hardness of 638 Mpa
- pure chrome has heat conductivity of 93.9 W/m, a melting point of 1907, and Vickers hardness of 1060 Mpa. Accordingly, in the case of nickel and chrome, heat conductivities thereof are lower than that of copper but melting points and Vickers hardness thereof are higher than those of copper.
- electrical conductivity of a metal is proportional to heat conductivity thereof, copper has higher electrical conductivity than nickel and chrome.
- the cooling ring 30 formed as described above includes the body 35 having the shape of a circular arc including copper and the plating layer 36 formed of nickel plating the body 35 , the body 35 formed of copper having relatively lower Vickers hardness and melting point is protected by the plating layer 36 formed of nickel having relatively higher Vickers hardness and melting point. Accordingly, as shown in FIG. 6 , although being used for welding the bellows 100 , copper powder having high electrical conductivity is not left on an outer circumferential surface of the bellows 100 .
- the cooling ring 30 does not cause a defect occurring due to the copper powder in a semiconductor manufacturing process.
- the cooling ring 30 although a tiny amount of nickel powder may occur, since the melting point and Vickers hardness of nickel are relatively high and electrical conductivity thereof is relatively low, a defect does not occur in the semiconductor manufacturing process.
- the plating layer 36 may be a metal close to pure chrome.
- the cooling ring 30 is formed as a ring element having the shape of a circular arc including the gap 33 but, as shown in FIG. 8 , may include a pair of semicircular elements 31 and 32 .
- the cooling ring 30 may be separated from the bellows 100 with no deformation and may be reused repetitively.
- the cooling ring 30 is formed to have a circular cross-section.
- a cooling ring 130 having another cross-section other than a circular shape may be formed.
- the cooling ring 130 includes a first surface 131 corresponding to a shape of the first barrier 10 , a second surface 132 corresponding to a shape of the second barrier 20 , an outer circumferential surface 133 connecting outer ends of the first surface 131 and the second surface 132 to each other. Step parts 134 that are depressed are formed on both ends of the outer circumferential surface 133 .
- the cooling ring 130 may easily provide a work space needed while welding the outer circumferential surface welding part OW due to the step parts 134 , and a depth of insertion into the interval between the first barrier 10 and the second barrier 20 may be easily controlled by the first surface 131 and the second surface 132 .
- FIG. 12 there is shown a cooling ring 230 for welding a bellows according to still another embodiment of the present invention.
- the cooling ring 230 different from the cooling ring 30 , does not include the plating layer 36 and is formed of a metallic material including at least one selected from the group consisting of tungsten, molybdenum, nickel, and chrome.
- pure tungsten has heat conductivity of 173 W/m, a melting point of 3420, and Vickers hardness of 3430 Mpa
- pure molybdenum has heat conductivity of 138 W/m, a melting point of 2623, and Vickers hardness of 1530 Mpa.
- the heat conductivities thereof are lower than that of copper but the melting points and the Vickers hardness thereof are very higher than those of copper. All electrical conductivities, the melting points, the Vickers hardness of the tungsten and the molybdenum are relatively higher than those of nickel and chrome. On the contrary, costs of the tungsten and the molybdenum are higher than those of nickel and chrome.
- the cooling ring 230 is formed of a metallic material containing 99 or more parts by weight of tungsten for the total 100 parts by weight, which is close to pure tungsten.
- the cooling ring 230 formed as described above is formed of the metallic material close to pure tungsten having both melting point and Vickers hardness relatively higher than those of copper, nickel, and chrome, although being used for manufacturing a large size of the bellows 100 , in which a welding temperature is high and a large amount of welding heat occurs, the cooling ring 230 is not easily melted down and does not leave copper powder.
- cooling ring 230 uses tungsten having more excellent electrical conductivity than that of nickel used for the cooling ring 30 , welding heat occurring during a welding process may be more rapidly dissipated than the cooling ring 30 .
- the cooling ring 230 is formed of the metallic material close to pure tungsten.
- the cooling ring 230 may be formed of one selected from the group consisting of a metal containing 99 or more parts by weight of molybdenum for the total 100 parts by weight, close to pure molybdenum, a metal containing 99 or more parts by weight of nickel for the total 100 parts by weight, close to pure nickel, and a metal containing 99 or more parts by weight of chrome for the total 100 parts by weight, close to pure chrome.
- the cooling ring 230 is formed to have a circular cross-section.
- a cooling ring 330 having another cross-section other than a circular shape may be formed.
- FIG. 14 illustrates a state in which the inner ends of a pair of the first barrier 10 and the second barrier 20 are welded to each other by using the cooling rings 230 .
- the cooling rings 230 are provided as one pair thereof and are mounted on a first jig 40 and a second jig 50 , respectively.
- the first jig 40 is a metallic element having a ring shape manufactured by using stainless steel, in which a hollow part 44 is formed in the center and a first mounting part 41 , a first space part 42 , and a first coupling part 43 are formed on a bottom surface.
- the first mounting part 41 is projected downwards along an edge of a bottom end of the hollow part 44 , the first space part 42 is a space formed outside the first mounting part 41 , and the first coupling part 43 is a groove formed outside the first space part 42 .
- one of the cooling rings 230 is mounted on a bottom end of the first mounting part 41 .
- the first jig 50 is a metallic element having the shape of a circular plate manufactured by using stainless steel, in which a second mounting part 51 , a second space part 52 , and a second coupling part 53 are formed on a top surface.
- the second mounting part 51 is a part on which the other of the cooling rings 230 is mounted, is projected upwards from a top surface of a bottom part 54 , and is formed at a location corresponding to the first mounting part 41 .
- the second space part 52 is a space formed outside the second mounting part 51 , is formed in a location corresponding to the first space part 42 , and may contain outer ends of the pair of the first barrier 10 and the second barrier 20 in cooperation with the first space part 42 .
- the second coupling part 53 is a projected part formed outside the second space part 52 , which is detachably coupled and fastened to the first coupling part 43 .
- An inner surface 55 of the second coupling part 53 is formed of a cylindrical circumferential surface having a predetermined diameter to allow outer end parts of the pair of the first barrier 10 and the second barrier 20 to be in contact therewith and supported thereby.
- the pair of the first barrier 10 and the second barrier 20 are disposed on a top surface of the second jig 50 as described above, a bottom surface of the first jig 40 is disposed to face the top surface of the second jig 50 , and then the first jig 40 and the second jig 50 are attached closely to each other. Then, as shown in FIG. 15 , the cooling ring 230 of the first jig 40 is depressed in contact with a top surface of an inner end of the first barrier 10 and the cooling ring 230 of the second jig 50 is depressed in contact with a bottom surface of an inner end of the second barrier 20 .
- an inner circumferential surface welding part IW is formed as shown in FIG. 16 .
- first jig 40 includes the hollow part 44 formed in the center, as shown in FIG. 15 , accessibility to the inner ends of the first barrier 10 and the second barrier 20 attached closely to each other is excellent, thereby conveniently welding the inner ends of the first barrier 10 and the second barrier 20 .
- the second jig 50 includes the second coupling part 53 including the cylindrical inner surface 55 having the predetermined diameter to allow the outer end parts of the pair of the first barrier 10 and the second barrier 20 to be in contact therewith and supported thereby, the first barrier 10 and the second barrier 20 may be stably fastened to an accurate location with no shake.
- the first jig 40 and the second jig 50 may be easily coupled with each other at an accurate location with no shake in a coupled state.
Abstract
Provided is a cooling ring for welding used to manufacture a bellows including a plurality of pairs of barriers, each pair formed of a first barrier and a second barrier disposed to face the first barrier. The cooling ring includes a body formed as a circular arc shape, disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier, the body including copper and a plating layer plating the body. The plating layer includes at least one selected from the group consisting of nickel and chrome.
Since the cooling ring includes the body having the circular arc shape including copper and the plating layer plating the body, it is possible to prevent powder of a metal having high electrical conductivity, such as copper, aluminum, gold, and silver, during a welding process.
Description
- The present invention relates to a cooling ring for welding a bellows, and more particularly, to a cooling ring for welding a bellows, which does not generate powder of a metal having high electrical conductivity such as copper, aluminum, gold, and silver during a welding process.
- Bellows are wrinkled tubes capable of maintaining a gastight seal and simultaneously with stretching, which are generally used in vacuum devices, semiconductor manufacturing equipment, small industrial machines, and precision machinery.
-
FIGS. 1 and 2 illustrate an example of abellows 100. Thebellows 100 is used while both ends thereof are being coupled withflanges 1. A plurality of pairs ofbarriers first barrier 10 and asecond barrier 20 disposed to face thefirst barrier 10 form one pair thereof and thefirst barriers 10 and thesecond barriers 20, adjacent to each other are alternately connected to have the shape of a wrinkled tube. - To describe a method of manufacturing the
bellows 100 in detail, as shown inFIG. 3 , thefirst barrier 10 and thesecond barrier 20 are manufactured by pressing respective metallic sheets, as shown inFIG. 4 , an inner circumferential surface welding part IW is formed by welding inner ends of thefirst barrier 10 and the second barrier to one another, as shown inFIG. 5 , the plurality of pairs ofbarriers FIG. 6 , an outer circumferential surface welding part OW is formed by welding outer ends of thefirst barrier 10 and thesecond barrier 20 of mutually adjacent pairs to one another. - In this case, to form the outer circumferential surface welding part OW, there are used
cooling rings FIGS. 7 and 8 and cross-sectional shapes are shown inFIGS. 6 and 9 . - The
cooling rings first barrier 10 and thesecond barrier 20 of each of the pairs to maintain a distance between the outer ends of thefirst barrier 10 and thesecond barrier 20 to be uniform in such a way that thefirst barrier 10 and thesecond barrier 20 are attached and clamped closely to each other while rapidly dissipating welding heat generated when forming the outer circumferential surface part OW. - However, since the
typical cooling rings bellows 100 after using thecooling rings bellows 100 is used for a semiconductor device, a defect is caused by an electrical short-circuit due to the metallic powder in a semiconductor manufacturing process. - Accordingly, when using the
cooling rings bellows 100 on a semiconductor device, it is necessary to remove metallic powder such as copper powder left on the outer circumferential surface of thebellows 100. Particularly, since the copper powder is very chemically stable and has high adsorption due to properties of copper, it is not easily removed from a surface of thebellows 100 by spraying high pressure gas or chemically cleaning. Accordingly, it is necessary to manually remove residual copper powder on the outer circumferential surface of thebellows 100 one by one by a worker. - The present invention provides a cooling ring for welding a bellows, whose configuration is improved not to generate powder of a metal having high electrical conductivity, such as copper, aluminum, gold, and silver, during a welding process
- According to an aspect of the present invention, there is provided a cooling ring for welding used to manufacture a bellows including a plurality of pairs of barriers, in which each pair is formed of a first barrier and a second barrier disposed to face the first barrier. The cooling ring includes a body formed as a circular arc shape, disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier, the body including copper and a plating layer plating the body. The plating layer includes at least one selected from the group consisting of nickel and chrome.
- The plating layer may contain 99 or more parts by weight of nickel for the total 100 parts by weight.
- The plating layer may contain 99 or more parts by weight of chrome for the total 100 parts by weight.
- According to another aspect of the present invention, there is provided a cooling ring for welding used to manufacture a bellows including a plurality of pairs of barriers, each pair being formed of a first barrier and a second barrier disposed to face the first barrier. The cooling ring is disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier. The cooling ring includes at least one selected from the group consisting of tungsten, molybdenum, nickel, and chrome.
- The cooling ring may contain 99 or more parts by weight of tungsten for the total 100 parts by weight.
- The cooling ring may contain 99 or more parts by weight of molybdenum for the total 100 parts by weight.
- The cooling ring may contain 99 or more parts by weight of nickel for the total 100 parts by weight.
- The cooling ring may contain 99 or more parts by weight of chrome for the total 100 parts by weight.
- Since the cooling ring includes the body having the circular arc shape including copper and the plating layer plating the body, it is possible to prevent powder of a metal having high electrical conductivity, such as copper, aluminum, gold, and silver, during a welding process.
-
FIG. 1 is a cross-sectional perspective view illustrating a general bellows; -
FIG. 2 is a cross-sectional view illustrating the bellows shown inFIG. 1 , cut along a line II-II; -
FIG. 3 is a cross-sectional view illustrating a state in which a first barrier and a second barrier manufactured by pressing respective metallic sheets are arranged to face each other; -
FIG. 4 is a cross-sectional view illustrating a state in which inner ends of a pair of the first barrier and the second barrier shown inFIG. 3 are welded to each other to form an inner circumferential surface welding part; -
FIG. 5 is a cross-sectional view illustrating a state in which, when a plurality of pairs of barriers welded at inner circumferential surface welding parts are arranged in a line, cooling rings for welding a bellows are inserted between outer ends of the first barriers and second barriers of the respective pairs thereof; -
FIG. 6 is a cross-sectional view illustrating a state in which outer ends of a mutually adjacent pair of the first barrier and the second barrier are welded to each other to form outer circumferential surface welding parts; -
FIG. 7 is a top view illustrating an example of the cooling ring shown inFIG. 5 ; -
FIG. 8 is a top view illustrating another example of the cooling ring shown inFIG. 5 ; -
FIG. 9 is a cross-sectional view illustrating a state in which outer ends of a mutually adjacent pair of the first barrier and the second barrier are welded to each other to form outer circumferential surface welding parts, using cooling rings for welding a bellows, which has another cross-sectional shape in addition to a circular shape; -
FIG. 10 is a cross-sectional view illustrating a cooling ring for welding a bellows according to an embodiment of the present invention; -
FIG. 11 is a cross-sectional view illustrating a cooling ring for welding a bellows according to another embodiment of the present invention; -
FIG. 12 is a cross-sectional view illustrating a cooling ring for welding a bellows according to still another embodiment of the present invention; -
FIG. 13 is a cross-sectional view illustrating a cooling ring for welding a bellows according to yet another embodiment of the present invention; -
FIG. 14 is a view illustrating a state in which inner ends of a pair of the first barrier and a second barrier are welded to each other by using the cooling rings shown inFIG. 12 ; -
FIG. 15 is a partially enlarged view illustrating a circled portion XV of the cooling rings shown inFIG. 14 ; and -
FIG. 16 is a view illustrating a state in which an inner circumferential surface welding part is formed on the inner ends of the pair of the first barrier and the second barrier welded to each other by using the cooling rings shown inFIG. 15 . - Hereinafter, the embodiments of the present invention will be described in detail with reference to the attached drawings.
-
FIG. 7 is a top view illustrating acooling ring 30 for welding a bellows according to an embodiment of the present invention, andFIG. 10 is a cross-sectional view illustrating thecooling ring 30. - Referring to
FIGS. 7 and 10 , thecooling ring 30 is used for manufacturing abellows 100 and is, as shown inFIG. 1 , inserted into an interval between afirst barrier 10 and asecond barrier 20 in order to attach thefirst barrier 10 and thesecond barrier 20 closely to each other while being in contact with at least one of thefirst barrier 10 and thesecond barrier 20. Thecooling ring 30 includes abody 35 and aplating layer 36. - The
body 35 is, as shown inFIGS. 7 and 10 , a ring element having the shape of a circular arc with agap 33 and may include at least one of metals such as copper, an copper alloy, aluminum, gold, and silver, whose melting points are relatively low and electrical conductivities are relatively high. In the present embodiment, thebody 35 is formed of copper. In this case, pure copper has heat conductivity of 401 W/m, a melting point of 1084, and Vickers hardness of 369 Mpa, in which the heat conductivity is relatively high and the Vickers hardness is relatively low. - The
plating layer 36, as shown inFIG. 10 , is a metallic layer plating thebody 35 and includes at least one selected from the group consisting of nickel and chrome. In the present embodiment, theplating layer 36 contains 99 or more parts by weight of nickel for the total 100 parts by weight, which is close to pure nickel. In this case, pure nickel has heat conductivity of 90.9 W/m, a melting point of 1455, and hardness of 638 Mpa, and pure chrome has heat conductivity of 93.9 W/m, a melting point of 1907, and Vickers hardness of 1060 Mpa. Accordingly, in the case of nickel and chrome, heat conductivities thereof are lower than that of copper but melting points and Vickers hardness thereof are higher than those of copper. On the other hand, since electrical conductivity of a metal is proportional to heat conductivity thereof, copper has higher electrical conductivity than nickel and chrome. - Since the
cooling ring 30 formed as described above includes thebody 35 having the shape of a circular arc including copper and theplating layer 36 formed of nickel plating thebody 35, thebody 35 formed of copper having relatively lower Vickers hardness and melting point is protected by the platinglayer 36 formed of nickel having relatively higher Vickers hardness and melting point. Accordingly, as shown inFIG. 6 , although being used for welding thebellows 100, copper powder having high electrical conductivity is not left on an outer circumferential surface of thebellows 100. - Accordingly, when the
bellows 100 is used for a semiconductor device, thecooling ring 30 does not cause a defect occurring due to the copper powder in a semiconductor manufacturing process. On the other hand, in the case of thecooling ring 30, although a tiny amount of nickel powder may occur, since the melting point and Vickers hardness of nickel are relatively high and electrical conductivity thereof is relatively low, a defect does not occur in the semiconductor manufacturing process. - In the present embodiment, although a metal close to pure nickel is used as the
plating layer 36, since containing 99 or more parts by weight of chrome for the total 100 parts by weight, theplating layer 36 may be a metal close to pure chrome. - In the present embodiment, the cooling
ring 30 is formed as a ring element having the shape of a circular arc including thegap 33 but, as shown inFIG. 8 , may include a pair ofsemicircular elements semicircular elements ring 30 may be separated from thebellows 100 with no deformation and may be reused repetitively. - In the present embodiment, the cooling
ring 30 is formed to have a circular cross-section. However, as shown inFIGS. 9 and 11 , acooling ring 130 having another cross-section other than a circular shape may be formed. Thecooling ring 130 includes afirst surface 131 corresponding to a shape of thefirst barrier 10, asecond surface 132 corresponding to a shape of thesecond barrier 20, an outercircumferential surface 133 connecting outer ends of thefirst surface 131 and thesecond surface 132 to each other. Stepparts 134 that are depressed are formed on both ends of the outercircumferential surface 133. Thecooling ring 130 may easily provide a work space needed while welding the outer circumferential surface welding part OW due to thestep parts 134, and a depth of insertion into the interval between thefirst barrier 10 and thesecond barrier 20 may be easily controlled by thefirst surface 131 and thesecond surface 132. - On the other hand, in
FIG. 12 , there is shown acooling ring 230 for welding a bellows according to still another embodiment of the present invention. Thecooling ring 230, different from the coolingring 30, does not include theplating layer 36 and is formed of a metallic material including at least one selected from the group consisting of tungsten, molybdenum, nickel, and chrome. In this case, pure tungsten has heat conductivity of 173 W/m, a melting point of 3420, and Vickers hardness of 3430 Mpa, and pure molybdenum has heat conductivity of 138 W/m, a melting point of 2623, and Vickers hardness of 1530 Mpa. Accordingly, in the case of the tungsten and the molybdenum, the heat conductivities thereof are lower than that of copper but the melting points and the Vickers hardness thereof are very higher than those of copper. All electrical conductivities, the melting points, the Vickers hardness of the tungsten and the molybdenum are relatively higher than those of nickel and chrome. On the contrary, costs of the tungsten and the molybdenum are higher than those of nickel and chrome. - In the present embodiment, the
cooling ring 230 is formed of a metallic material containing 99 or more parts by weight of tungsten for the total 100 parts by weight, which is close to pure tungsten. - Since the
cooling ring 230 formed as described above is formed of the metallic material close to pure tungsten having both melting point and Vickers hardness relatively higher than those of copper, nickel, and chrome, although being used for manufacturing a large size of thebellows 100, in which a welding temperature is high and a large amount of welding heat occurs, thecooling ring 230 is not easily melted down and does not leave copper powder. - Also, since the
cooling ring 230 uses tungsten having more excellent electrical conductivity than that of nickel used for thecooling ring 30, welding heat occurring during a welding process may be more rapidly dissipated than the coolingring 30. - In the present embodiment, the
cooling ring 230 is formed of the metallic material close to pure tungsten. However, thecooling ring 230 may be formed of one selected from the group consisting of a metal containing 99 or more parts by weight of molybdenum for the total 100 parts by weight, close to pure molybdenum, a metal containing 99 or more parts by weight of nickel for the total 100 parts by weight, close to pure nickel, and a metal containing 99 or more parts by weight of chrome for the total 100 parts by weight, close to pure chrome. - In the present embodiment, the
cooling ring 230 is formed to have a circular cross-section. However, as shown inFIGS. 9 and 13 , acooling ring 330 having another cross-section other than a circular shape may be formed. - On the other hand,
FIG. 14 illustrates a state in which the inner ends of a pair of thefirst barrier 10 and thesecond barrier 20 are welded to each other by using the cooling rings 230. - The cooling rings 230 are provided as one pair thereof and are mounted on a
first jig 40 and asecond jig 50, respectively. - The
first jig 40 is a metallic element having a ring shape manufactured by using stainless steel, in which ahollow part 44 is formed in the center and a first mountingpart 41, afirst space part 42, and afirst coupling part 43 are formed on a bottom surface. - The first mounting
part 41 is projected downwards along an edge of a bottom end of thehollow part 44, thefirst space part 42 is a space formed outside the first mountingpart 41, and thefirst coupling part 43 is a groove formed outside thefirst space part 42. - On a bottom end of the first mounting
part 41, one of the cooling rings 230 is mounted. - The
first jig 50 is a metallic element having the shape of a circular plate manufactured by using stainless steel, in which a second mountingpart 51, asecond space part 52, and asecond coupling part 53 are formed on a top surface. - The second mounting
part 51 is a part on which the other of the cooling rings 230 is mounted, is projected upwards from a top surface of abottom part 54, and is formed at a location corresponding to the first mountingpart 41. - The
second space part 52 is a space formed outside the second mountingpart 51, is formed in a location corresponding to thefirst space part 42, and may contain outer ends of the pair of thefirst barrier 10 and thesecond barrier 20 in cooperation with thefirst space part 42. - The
second coupling part 53 is a projected part formed outside thesecond space part 52, which is detachably coupled and fastened to thefirst coupling part 43. - An
inner surface 55 of thesecond coupling part 53 is formed of a cylindrical circumferential surface having a predetermined diameter to allow outer end parts of the pair of thefirst barrier 10 and thesecond barrier 20 to be in contact therewith and supported thereby. - The pair of the
first barrier 10 and thesecond barrier 20 are disposed on a top surface of thesecond jig 50 as described above, a bottom surface of thefirst jig 40 is disposed to face the top surface of thesecond jig 50, and then thefirst jig 40 and thesecond jig 50 are attached closely to each other. Then, as shown inFIG. 15 , thecooling ring 230 of thefirst jig 40 is depressed in contact with a top surface of an inner end of thefirst barrier 10 and thecooling ring 230 of thesecond jig 50 is depressed in contact with a bottom surface of an inner end of thesecond barrier 20. - As described above, in a state in which the
first barrier 10 and thesecond barrier 20 are attached closely to each other, when the inner ends of thefirst barrier 10 and thesecond barrier 20 are welded to each other through thehollow part 44 of thefirst jig 40, an inner circumferential surface welding part IW is formed as shown inFIG. 16 . - Since the
first jig 40 includes thehollow part 44 formed in the center, as shown inFIG. 15 , accessibility to the inner ends of thefirst barrier 10 and thesecond barrier 20 attached closely to each other is excellent, thereby conveniently welding the inner ends of thefirst barrier 10 and thesecond barrier 20. - Also, since the
second jig 50 includes thesecond coupling part 53 including the cylindricalinner surface 55 having the predetermined diameter to allow the outer end parts of the pair of thefirst barrier 10 and thesecond barrier 20 to be in contact therewith and supported thereby, thefirst barrier 10 and thesecond barrier 20 may be stably fastened to an accurate location with no shake. - Also, since including the
first coupling part 43 and thesecond coupling part 53 coupled and fastened to each other to be detachable, respectively, thefirst jig 40 and thesecond jig 50 may be easily coupled with each other at an accurate location with no shake in a coupled state. - While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
Claims (8)
1. A cooling ring for welding used to manufacture a bellows comprising a plurality of pairs of barriers, each pair being formed of a first barrier and a second barrier disposed to face the first barrier, the cooling ring comprising:
a body formed as a circular arc shape, disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier, the body comprising copper; and
a plating layer plating the body,
wherein the plating layer comprises at least one selected from the group consisting of nickel and chrome.
2. The cooling ring of claim 1 , wherein the plating layer contains 99 or more parts by weight of nickel for the total 100 parts by weight.
3. The cooling ring of claim 1 , wherein the plating layer contains 99 or more parts by weight of chrome for the total 100 parts by weight.
4. A cooling ring for welding used to manufacture a bellows comprising a plurality of pairs of barriers, each pair being formed of a first barrier and a second barrier disposed to face the first barrier,
the cooling ring disposed to attach the first barrier and the second barrier closely to each other while being in contact with at least one of the first barrier and the second barrier, and
the cooling ring comprising at least one selected from the group consisting of tungsten, molybdenum, nickel, and chrome.
5. The cooling ring of claim 4 , containing 99 or more parts by weight of tungsten for the total 100 parts by weight.
6. The cooling ring of claim 4 , containing 99 or more parts by weight of molybdenum for the total 100 parts by weight.
7. The cooling ring of claim 4 , containing 99 or more parts by weight of nickel for the total 100 parts by weight.
8. The cooling ring of claim 4 , containing 99 or more parts by weight of chrome for the total 100 parts by weight.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110093651A KR101174100B1 (en) | 2011-09-16 | 2011-09-16 | Cooling ring for welding of bellows generating less metal powder |
KR10-2011-0093651 | 2011-09-16 | ||
KR1020120054945A KR101390283B1 (en) | 2012-05-23 | 2012-05-23 | cooling ring for welding of Bellows generating less metal powder. |
KR10-2012-0054945 | 2012-05-23 | ||
PCT/KR2012/004108 WO2013039289A1 (en) | 2011-09-16 | 2012-05-24 | Cooling ring for welding bellows generating less metal powder |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130319649A1 true US20130319649A1 (en) | 2013-12-05 |
Family
ID=47883490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/985,986 Abandoned US20130319649A1 (en) | 2011-09-16 | 2012-05-24 | Cooling ring for welding bellows generating less metal powder |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130319649A1 (en) |
EP (1) | EP2743027B1 (en) |
JP (1) | JP5838227B2 (en) |
CN (1) | CN103857492B (en) |
WO (1) | WO2013039289A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107110354B (en) * | 2014-11-05 | 2019-03-12 | 伊格尔工业股份有限公司 | Metal bellows |
US10520084B2 (en) * | 2015-09-23 | 2019-12-31 | Eagle Industry Co., Ltd. | Metal bellows |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6193349B1 (en) * | 1997-06-18 | 2001-02-27 | Lexmark International, Inc. | Ink jet print cartridge having active cooling cell |
KR20050003949A (en) * | 2003-08-12 | 2005-01-12 | 네오마 주식회사 | chill ring for producing bellows and bellows manufacturing method using it |
JP2006231342A (en) * | 2005-02-22 | 2006-09-07 | Nuclear Fuel Ind Ltd | Chiller for welding |
US8374062B2 (en) * | 2010-09-23 | 2013-02-12 | Tdk Corporation | Heat assist magnetic write head, head gimbals assembly, head arm assembly, and magnetic disk device |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB722070A (en) * | 1952-10-02 | 1955-01-19 | Parsons C A & Co Ltd | Improvements in and relating to methods of fusion welding |
JPH0743035B2 (en) * | 1984-04-19 | 1995-05-15 | 住友軽金属工業株式会社 | Method of manufacturing aluminum bellows |
JPH0655347B2 (en) * | 1986-03-20 | 1994-07-27 | 住友軽金属工業株式会社 | Manufacturing method of metal bellows |
JPH05203056A (en) * | 1992-01-24 | 1993-08-10 | Nippon Purobiimu Kogyo Kk | Manufacture of diaphragm bellows |
US6078021A (en) * | 1997-08-29 | 2000-06-20 | Chang; Dale U. | Apparatus and method of laser welding inside bellows joints and spacer for manufacturing bellows |
JP3337206B2 (en) * | 2000-01-11 | 2002-10-21 | 日本ピラー工業株式会社 | Bellows and fluid equipment using the same |
KR200334156Y1 (en) * | 2003-08-12 | 2003-11-21 | 네오마 주식회사 | A bellows welding machine |
JP2006222031A (en) * | 2005-02-14 | 2006-08-24 | Toho Kinzoku Co Ltd | Method of manufacturing x-ray tube target |
FI123372B (en) * | 2008-06-30 | 2013-03-15 | Outotec Oyj | Method for Coating a Cooling Element for a Metallurgical Furnace and a Cooling Element |
-
2012
- 2012-05-24 WO PCT/KR2012/004108 patent/WO2013039289A1/en active Application Filing
- 2012-05-24 US US13/985,986 patent/US20130319649A1/en not_active Abandoned
- 2012-05-24 CN CN201280045323.1A patent/CN103857492B/en active Active
- 2012-05-24 EP EP12832308.6A patent/EP2743027B1/en active Active
- 2012-05-24 JP JP2013552477A patent/JP5838227B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6193349B1 (en) * | 1997-06-18 | 2001-02-27 | Lexmark International, Inc. | Ink jet print cartridge having active cooling cell |
KR20050003949A (en) * | 2003-08-12 | 2005-01-12 | 네오마 주식회사 | chill ring for producing bellows and bellows manufacturing method using it |
JP2006231342A (en) * | 2005-02-22 | 2006-09-07 | Nuclear Fuel Ind Ltd | Chiller for welding |
US8374062B2 (en) * | 2010-09-23 | 2013-02-12 | Tdk Corporation | Heat assist magnetic write head, head gimbals assembly, head arm assembly, and magnetic disk device |
Also Published As
Publication number | Publication date |
---|---|
EP2743027A1 (en) | 2014-06-18 |
WO2013039289A1 (en) | 2013-03-21 |
CN103857492A (en) | 2014-06-11 |
CN103857492B (en) | 2016-03-02 |
EP2743027A4 (en) | 2016-01-06 |
JP5838227B2 (en) | 2016-01-06 |
EP2743027B1 (en) | 2021-09-22 |
JP2014509943A (en) | 2014-04-24 |
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