KR101794953B1 - Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof - Google Patents
Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof Download PDFInfo
- Publication number
- KR101794953B1 KR101794953B1 KR1020150138025A KR20150138025A KR101794953B1 KR 101794953 B1 KR101794953 B1 KR 101794953B1 KR 1020150138025 A KR1020150138025 A KR 1020150138025A KR 20150138025 A KR20150138025 A KR 20150138025A KR 101794953 B1 KR101794953 B1 KR 101794953B1
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- KR
- South Korea
- Prior art keywords
- cooling pipe
- oil
- cooling
- pipe
- expansion
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention relates to a cooling pipe expansion pipe system capable of fixing a cooling fin while forming a single pipe without connecting a cooling pipe constituting a cooling system by welding, and a cooling pipe expansion method using the same.
The cooling pipe extending pipe according to the present invention is characterized in that the cooling fin having the through hole is inserted and fixed while keeping the gap therebetween. A fixing unit for fixing the inserted cooling pipe inserted along the through hole of the cooling fin fixed to the jig; A power transmission unit for converting the rotational motion of the motor as a drive source into a linear reciprocating motion; Expanding means for expanding the inner diameter of the cooling pipe installed in the power transmission portion and fixed to the fixed portion while linearly reciprocating together with the power transmission portion to a predetermined outer diameter; An oil supply unit for supplying oil to the inside of the cooling pipe to prevent rupture and thermal deformation of the cooling pipe that is expanded when the expanding means is activated; And a control unit for controlling the driving of the fixing unit, the expansion means, and the oil supply unit.
Description
The present invention relates to a cooling pipe expanding apparatus and a cooling pipe expanding method using the same, and more particularly, to a cooling pipe expanding method and a cooling pipe expanding method using the same, And a method of expanding a cooling pipe using the same.
Consumer appliances such as refrigerators, air conditioners, and water purifiers are provided with cooling systems for cooling. The conventional refrigeration system for household appliances includes a compressor for compressing gaseous refrigerant at a high temperature and a high pressure, a condenser for condensing high-temperature and high-pressure refrigerant gas discharged from the compressor, a low-temperature and low-pressure liquid And an evaporator in which the refrigerant absorbs the latent heat of evaporation to cool the evaporator.
In this cooling system, the cooling operation is performed while repeating the process of circulating the refrigerant from the evaporator through the condenser and the capillary to the evaporator by driving the compressor.
The condenser constituting the cooling system includes a cooling pipe through which the coolant flows and a cooling fin fitted to the outer circumferential surface of the cooling pipe to make the surface area in contact with the air as large as possible to enable rapid heat exchange.
The cooling pipe is made of a pipe having a predetermined inner diameter by using an aluminum alloy or the like having a high thermal conductivity, and is cut into a predetermined length and used.
The cooling fins to be assembled here are also formed into a thin plate shape using an aluminum alloy or the like having a high thermal conductivity and have a structure in which a through hole is opened so that the cooling pipe can be inserted.
In order to assemble the cooling fins in the cooling pipe, a plurality of cooling fins are firstly inserted into the jig at predetermined intervals and fixed in a row, and then the cooling fins are inserted into the cooling fins The cooling pipe is inserted along the through-hole of the pipe.
In order to fix the cooling fin inserted in the cooling pipe to the cooling pipe, a spreading ball is inserted into the cooling pipe, and when it is pulled from the front, the expansion pipe passes through the cooling pipe and the cooling pipe is expanded, The cooling fins are fixed while being in surface contact with the holes.
When a plurality of cooling pipes with a cooling fin in a fixed form are manufactured through the above operation, one end of the cooling pipe is cut into a predetermined length, and the other end is bent in a "U"
The cooling pipe made in such a unit length has one end in the form of a straight line and the other end in the form of a " U "shape. The cooling pipe is divided into a U- Insert the sleeve inside and connect it from outside by welding.
By connecting the plurality of cooling pipes to each other by welding in the same manner, the evaporator can be manufactured to have a predetermined size corresponding to the cooling capacity.
However, such a structure is disadvantageous in that when the cooling pipe is welded, the sleeve is welded with the sleeve inserted thereinto, so that when the refrigerant flows into the cooling pipe, resistance is received by the sleeve.
In addition, there is a possibility that the welded portion is leaked due to vibrations or shocks and the coolant may leak out.
In addition, since the conventional cooling pipe expansion apparatus has a structure in which the expansion pipe is expanded by inserting a expansion ball into the cooling pipe and pulling the expansion ball from the front side, it is inevitable to expand the cooling pipe only when the cooling pipe is in the form of a straight line.
After completion of the expansion work, one end is bent to a "U" shape and welded to another cooling pipe having the same structure, so that much work is required.
SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a cooling pipe expanding apparatus capable of fixing a cooling fin while forming a single pipe without connecting a cooling pipe by welding, And to provide a method for expanding the cooling pipe.
The cooling pipe expansion apparatus proposed by the present invention includes a jig having cooling fins having through holes formed therein so that they can be inserted and fixed while maintaining a gap therebetween. A fixing unit for fixing the inserted cooling pipe inserted along the through hole of the cooling fin fixed to the jig; A power transmission unit for converting the rotational motion of the motor as a drive source into a linear reciprocating motion; Expanding means for expanding the inner diameter of the cooling pipe installed in the power transmission portion and fixed to the fixed portion while linearly reciprocating together with the power transmission portion to a predetermined outer diameter; An oil supply unit for supplying oil to the inside of the cooling pipe to prevent rupture and thermal deformation of the cooling pipe that is expanded when the expanding means is activated; And a control unit for controlling the driving of the fixing unit, the expansion means, and the oil supply unit.
Wherein the fixing part is formed of two clamps which are arranged to face each other and linearly moved by the respective driving parts, one of the clamps is formed with a supporting groove in which one side of the cooling pipe is seated and supported, The clamp is formed with a projection for pressing and restraining the other side of the cooling pipe supported by the support groove.
The one of the clamps is provided with a cutting edge for cutting the end portion of the cooling pipe to a predetermined length while being driven by the driving force of the driving portion.
The power transmission unit includes a drive sprocket connected to a rotation axis of a motor configured to rotate forward and reverse and rotating forward and reverse, a driven sprocket for transmitting driving force of the drive sprocket, and a drive sprocket connected to the drive sprocket and the driven sprocket. A chain for converting the rotational motion of the chain into a linear reciprocating motion, and a first fixing bracket for transmitting the driving force of the chain to the expanding means.
And the expanding means includes a rod that linearly moves by the driving force of the power transmitting portion. And a guide tip coupled to a distal end of the rod and extending along the inner surface of the cooling pipe together with the rod to expand the inner diameter of the cooling pipe and a guide tip assembled at the distal end of the expansion ball.
The load is provided with a plurality of second fixing brackets so that a driving force of the power transmission portion is transmitted to the rod.
The guide and guide pins are formed with a passage through which oil can pass so that the oil in the oil supply unit can be supplied to the inside of the cooling pipe to be expanded. .
An air discharge hole is formed in the expansion ball to discharge the air inside the cooling pipe to the outside of the cooling pipe, and the rod and the expansion ball are assembled to be detachable by a screw fastening method on the guide tip.
The oil supply unit includes a check valve installed in an oil storage tank and an oil discharge pipe through which oil is discharged from the oil storage tank to guide the oil in only one direction while preventing backflow of oil, And an air compressor for applying pressure to supply the oil to the expanding means.
The air compressor and the expansion means are connected to each other through a connection pipe. A solenoid valve is installed at an end of the connection pipe so as to intermittently supply the compressed air supplied by the expansion means at a predetermined interval.
The expansion means is configured to be operated after a predetermined time has elapsed after the oil supply portion is operated under the control of the control portion.
The present invention also provides a method of manufacturing a semiconductor device, comprising: a step of aligning and fixing cooling fins having fixing holes in a plurality of rows by inserting the cooling fins into insertion grooves of a jig provided with a plurality of rows; A step of bending an intermediate portion of the cooling pipe fitted in the cooling fin fixing holes of each of the columns in a "U" shape; And an expanding step of expanding the cooling pipe to a predetermined outer diameter by moving the expanding means along the inner surface of the cooling pipe.
An oil supply process is further performed inside the cooling pipe in order to prevent rupture and thermal deformation of the cooling pipe that is expanded during the expansion process.
After the bending process, a cutting process is further performed to cut the end portions of the cooling pipes in order to align both ends of the cooling pipe with a predetermined length.
The cooling pipe expansion pipe according to the present invention and the cooling pipe expansion method using the cooling pipe extension method according to the present invention are characterized in that a cooling fin is inserted into a cooling fin in a state in which a middle portion of a cooling pipe constituting one evaporator is bent in a & Since the cooling fins can be fixed, the cooling pipe can be manufactured without welding.
For this reason, all of the defects due to welding can be eliminated, and a high-quality cooling system can be manufactured.
In addition, since the middle portion of the cooling pipe can be first bent in the "U " shape, and the expanding operation can be simultaneously performed at both ends of the bent cooling pipe, the time for expanding the cooling pipe can be shortened. In addition, when the cooling pipe is expanded, the oil can be intermittently injected into the cooling pipe to prevent the excessive supply of oil, and the air trapped in the unexpanded cooling pipe can be smoothly discharged.
1 is a front view of a cooling pipe expansion apparatus according to the present invention.
2 is a plan view of a cooling pipe expansion piping according to the present invention.
3 is a perspective view for explaining a jig provided in a cooling pipe expansion pipe according to the present invention.
4 is a view for explaining a fixing part provided in a cooling pipe expansion pipe according to the present invention.
5 is a partial cross-sectional view for explaining the expanding means provided in the cooling pipe expanding apparatus according to the present invention.
6 is a view showing an oil supply portion provided in a cooling pipe expansion pipe according to the present invention.
FIG. 7 is a perspective view of a cooling pipe extending apparatus according to the present invention in which a cooling pipe is inserted into a cooling fin. FIG.
8 is an enlarged cross-sectional view showing the expansion of the cooling pipe using the cooling pipe expansion pipe according to the present invention.
9 is a view for explaining operation of the expanding means of the cooling pipe expansion pipe system according to the present invention.
Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
FIG. 1 is a front view of a cooling pipe expansion apparatus according to the present invention, and FIG. 2 is a plan view of a cooling pipe expansion apparatus according to the present invention.
As shown in the drawings, the cooling pipe expansion apparatus according to the present invention includes a
The
The
The cooling fins F are formed in a substantially rectangular shape and one or more than two through holes H are formed so that the cooling pipes P can be inserted. And the cooling pipe F can be fixed to the cooling pipe P with respect to the cooling pipe P.
The shape of the cooling fin F may be a rectangle or a square. The shape of the cooling fin F is not limited thereto. For example, the cooling fin F may have various shapes such as a polygon.
3, the
The operation of inserting the cooling fins F into the
At this time, the cooling pin (F) is installed in a module unit in a certain interval maintaining the interval, and the module is inserted in a continuously repeated section in which a certain section is not installed. As will be described in detail later, the starting end and the end portion of the cooling pipe P whose middle portion is bent in the form of the U-shape are inserted into the through hole H of the cooling fin F and the cooling pipe P is extended And then the cooling pipe P in a section where the cooling fin F is not installed is bent in a predetermined shape so that the cooling fin can be fixed while forming the cooling pipe as a single pipe without welding.
4 shows the fixing
The driving
The
The
A
When the
When the switch for operating the
The fixing
The power transmitting portion for driving the expanding means includes a
The rotation of the
Accordingly, the expansion means is advanced and retreated by forward rotation and reverse rotation of the
A
The
Fig. 5 is a view for explaining the expanding means. The expanding means of the present invention includes a
A plurality of
The
The
After the
The inner diameter of the cooling pipe P can be enlarged by moving the
The
The tip portion of the
An
Accordingly, even if the middle portion of the cooling pipe P is bent in a U-shape and then both the free ends of the cooling pipe P are expanded at the same time, the air inside the cooling pipe P flows into the
6 is a view for explaining the
The oil discharged from the
The
The
Therefore, when the expanding operation of the cooling pipe P proceeds through the expanding means, the oil can be injected with the force of the compressed air at predetermined time intervals. The injection interval of the oil can be configured, for example, by spraying twice per second, so that sufficient oil can be injected when the cooling pipe (P) is expanded. In addition, when the oil is intermittently sprayed in this way, excessive supply of oil can be prevented while the
After the oil is first supplied to the cooling pipe P, a predetermined time has elapsed under the control of the
The
In order to expand the cooling pipe by using the cooling pipe expansion apparatus of the present invention as described above, first, the cooling pipe is inserted into the
This operation can be performed by inserting cooling fins F into a plurality of jigs at the same time and inserting cooling fins into a plurality of jigs in a row.
At this time, the cooling pin (F) is installed in a module unit for a predetermined period, and a section in which a certain section is not installed is continuously inserted repeatedly.
The cooling pipe P is prepared through a separate process from that described above. At this time, the cooling pipe P is prepared by a separate process as shown in FIG. 7, in which the middle portion is bent in a "U & This cooling pipe P is inserted into the through hole H of the cooling fin F assembled to the
In this state, the
In this state, when the
Then, after confirming that the cutting has proceeded normally, the
When the
At this time, the air compressor (66) and the solenoid valve for distribution (71) are also operated to pressurize the oil in the oil discharge line (62) and transfer the oil together with the compressed air to the expanding means by the force of the compressed air.
The oil to be transferred travels along the
In this operation, since the
The
The driving
At this time, when the
When the
That is, the first fixed
As a result of this operation, the
As the cooling pipe P is expanded by this enlarging operation, the outer diameter of the cooling pipe P is expanded and the through hole H of the cooling fin F is in surface contact so that the cooling pin F is attached to the cooling pipe P .
At this time, since the middle portion of the cooling pipe (P) is bent in the shape of "U", the expanding operation can be performed at both free ends at the same time. And is discharged to the rear side of the cooling pipe P that has been expanded through the
When the
As a result of this action, the
When the cooling fins F are installed outside the cooling pipe P in module units for a predetermined interval and the sections where the cooling fins F are not installed for a certain period are continuously repeatedly formed, It is possible to constitute the cooling system by bending the cooling pipe P in a predetermined section in a predetermined shape.
While the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
2: Jig 4: Fixed part
6: motor 8: oil supply part
10: control unit 12: frame
14: switch 16: insertion groove
18, 20: driving part 22: upper clamp
24: Lower clamp 26: Support groove
28: projection 30: cutting edge
32: drive sprocket 34: driven sprocket
36: chain 38: first fixing bracket
40, 50: rail 42: rod
44: Zoom out 46: Guide tip
48: second fixing
56: Oil discharge hole 58: Air discharge hole
60: Oil storage tank 62: Oil discharge pipe
64: Check valve 66: Air compressor
68: connection channel 70: main solenoid valve
71: Solenoid valve for distribution
72: cooling fin inserting device 74: fastening part
Claims (17)
A fixing unit inserted along both of the through holes of the cooling fins fixed to the jig, the fixing part fixing the expanding cooling pipe whose middle portions are bent in the shape of "U" and whose both ends are free ends;
A power transmission unit for converting the rotational motion of the motor as a drive source into a linear reciprocating motion;
Expanding means for expanding the inner diameter of the cooling pipe installed in the power transmission portion and fixed to the fixed portion while linearly reciprocating together with the power transmission portion to a predetermined outer diameter;
An oil supply unit for supplying oil to the inside of the cooling pipe to prevent rupture and thermal deformation of the cooling pipe that is expanded when the expanding means is activated;
A control unit for controlling the driving of the fixing unit, the expansion means, and the oil supply unit;
Lt; / RTI >
The expansion means includes two rods that linearly move by the driving force of the power transmission portion. Two expansion balls coupled to the distal ends of the rods and advancing together with the rods while simultaneously expanding the inside diameters of the pipes at both sides of the cooling pipes and two guide tips assembled to the distal ends of the expansion balls,
Wherein each of the rod and each of the expansion balls is provided with a flow passage through which oil can pass so that the oil in the oil supply section can be supplied to the inside of the cooling pipe to be expanded, An oil discharge hole for discharging the oil to the cooling pipe to be expanded,
An air discharge hole having a groove shape for discharging the air in the cooling pipe that has not been expanded as the expansion is progressed to the rear end side of the cooling pipe having been expanded,
The expansion means is configured to be operated after a predetermined time has elapsed after the oil supply portion is operated under the control of the control portion,
The oil supply unit includes a check valve installed in an oil storage tank and an oil discharge pipe through which oil is discharged from the oil storage tank to guide the oil to flow only in one direction while preventing reverse flow of oil, And an air compressor for applying pressure to the inside of the cooling pipe to be expanded,
The oil supplied to the inside of the cooling pipe to be expanded through the oil supply unit is supplied to the cooling solenoid valve by the solenoid valve for distribution which is controlled by the control unit so as to repeatedly supply and shut off the compressed air of the air compressor, Pipe expanding system.
The fixing part is constituted by two clamps which are installed so as to be opposed to each other and linearly moved by the respective driving parts. One clamp has a support groove in which one side of the cooling pipe is seated and supported, and the other clamp Is provided with a protrusion for pressing and restraining the other side surface of the cooling pipe supported by the support groove.
Wherein one of the two clamps is provided with a cutting blade for cutting the end of the cooling pipe to a predetermined length while being driven by the driving force of the driving unit.
The power transmission unit includes a drive sprocket connected to a rotation axis of a motor configured to rotate forward and reverse and rotating forward and reverse, a driven sprocket for transmitting driving force of the drive sprocket, and a drive sprocket connected to the drive sprocket and the driven sprocket. And a first fixing bracket for transmitting the driving force of the chain to the expanding means.
And a plurality of second fixing brackets are fixed to the rod so that a driving force of the power transmission portion is transmitted to the rod.
Wherein the rod and the expansion ball are assembled in a detachable manner by a screw fastening method on the guide tip.
And the tip end of the guide tip is made of a tapered surface.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150138025A KR101794953B1 (en) | 2015-09-30 | 2015-09-30 | Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof |
KR1020170114994A KR101879582B1 (en) | 2015-09-30 | 2017-09-08 | Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150138025A KR101794953B1 (en) | 2015-09-30 | 2015-09-30 | Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof |
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KR1020170114994A Division KR101879582B1 (en) | 2015-09-30 | 2017-09-08 | Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof |
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KR20170038533A KR20170038533A (en) | 2017-04-07 |
KR101794953B1 true KR101794953B1 (en) | 2017-11-07 |
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KR1020150138025A KR101794953B1 (en) | 2015-09-30 | 2015-09-30 | Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107695235B (en) * | 2017-09-12 | 2018-11-06 | 珠海格力电器股份有限公司 | The processing method of fin machining device and fin |
KR102090379B1 (en) | 2018-04-23 | 2020-03-17 | 최병월 | Apparatus and method for expanding pipe |
KR102066347B1 (en) | 2018-04-23 | 2020-01-14 | 최병월 | Apparatus for expanding pipe using fluid pressure |
KR102065770B1 (en) * | 2018-05-08 | 2020-01-13 | 한전원자력연료 주식회사 | A WH type skeleton bulge tool fatigue test device |
CN111606003A (en) * | 2020-05-28 | 2020-09-01 | 珠海格力智能装备有限公司 | Loading attachment and have its assembly line |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100715892B1 (en) * | 2006-03-28 | 2007-05-08 | 삼성광주전자 주식회사 | A pipe expanding device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100920953B1 (en) | 2007-07-30 | 2009-10-09 | (주)삼원산업사 | expander of bronze pipe |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100715892B1 (en) * | 2006-03-28 | 2007-05-08 | 삼성광주전자 주식회사 | A pipe expanding device |
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