CN100486759C - Machining process and equipment for low-plasticity nonferrous metal round wire formation - Google Patents

Machining process and equipment for low-plasticity nonferrous metal round wire formation Download PDF

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Publication number
CN100486759C
CN100486759C CNB2006100106641A CN200610010664A CN100486759C CN 100486759 C CN100486759 C CN 100486759C CN B2006100106641 A CNB2006100106641 A CN B2006100106641A CN 200610010664 A CN200610010664 A CN 200610010664A CN 100486759 C CN100486759 C CN 100486759C
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China
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equipment
swaging
diameter
plasticity
forging die
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CNB2006100106641A
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CN1807005A (en
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雷霆
方树铭
张玉林
李皓
周林
张家敏
王少龙
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TECH CENTER YUNNAN METALLURGY GROUP GENERAL CORP
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TECH CENTER YUNNAN METALLURGY GROUP GENERAL CORP
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Abstract

The invention relates metallic round thread formation process technology used for low plastic metallic round thread. The invention belongs to metallic thread process technology. The technology comprises the following steps: cutting the diameter to required size with rotary forging machine, at the courser of rotary forging carrying out annealing treatment, 15-20% working rate of major diameter round thread, 10-15% working rate of middle diameter round thread, and 5-10% working rate of small diameter round thread. The formation process unit comprises the following characters: on the one side of shell there is bearing plate, leading-in mouth and rolling ring clamp plate, and the other side of shell there is main driving axle, one end of main driving axle there is big belt sheave, and the other side there is forked crosshead in which there are some hammers, dies and vertical angle lining boards; between hammers, vertical angle lining board and steel ring there is some rollers; the steel ring is installed in shell, and one end of steel ring there is rolling ring clamp plate; hammer and die circumrotate along with main driving axle, and they can radial reciprocating slid.

Description

Low-plasticity nonferrous metal round wire contour machining procedure and equipment
Technical field: the present invention relates to a kind of contour machining procedure of round metal line, be specially adapted to the processing and forming of inductile difficult-to-machine metal circle line.Belong to the metal wire rod manufacture field.
Background technology: the processing method of non-ferrous metal wire rod is more, all is the processing molding method of using always as extruding, rolling, stretching etc.Extruding generally obtains as cast condition or half as cast condition blank, obtain the product of final molding, needs manufacturing procedures such as process is rolling, stretching; Every time deflection is big, distortion is goed deep into, deformation velocity is fast and the production efficiency advantages of higher owing to having for rolling, has obtained application widely aborning; Though the more ancient drawing process that fixed die stretches and progressively replaced, because its product size precision height also has certain application in finishing procedure.In actual production, technology adopts extruding, rolling, the mixed form that stretches more, and for example extruding is as cogging, and the middle process of rolling conduct stretches then as last finishing procedure.Non-ferrous metal or alloy wire relatively prove effective above method preferably to working plasticity.
But for the inductile material, as nickelic plumbous packfong, dispersion-strengthened Cu, and when the refractory metals tungsten that plasticity is poor, intensity is high, molybdenum (or alloy), processing method such as rolling, stretching then shows inferiority entirely, and must ward off new way in addition.Nickelic plumbous packfong adopts horizontal continuous casting process production line base, this line base tissue looseness porous, defective such as have pore, be mingled with; The grain structure at each position is thick and inhomogeneous in the strand; Plumbous phase macrosegregation, be distributed on the crystal boundary, because the existence of these defectives, destroyed the combination of crystal boundary, caused metallic matrix discontinuous, work in-process forms breach and crackle, even cause material embrittlement or fracture, must change as-cast structure into processing attitude tissue with the manufacturing process that is fit to, make its interior tissue homogenising also with the broken refinement of thick crystal grain.Dispersion-strengthened Cu has similar metallicity to nickelic plumbous packfong on institutional framework: tissue looseness and extremely inhomogeneous, there is strong processing to destroy tendency, add man-hour bearing rolling and drawing, because distortion is inhomogeneous, can cause material production crackle or fracture and destroy under the machining stress effect.Conventional method processing is difficulty very.
Summary of the invention: the objective of the invention is to overcome above-mentioned prior art deficiency, invent and a kind ofly be contained in tup and forging die in the final drive shaft and rotation thereupon, utilize the centrifugal force of tup when rotating and the active force that roller compressing tup radially moves, realize that on technology and equipment pulse forges and multi-direction hammering turned blank, promptly with the method processing low-plasticity nonferrous metal round wire of swaging.Add the man-hour metal and make multi-head spiral extend in forging die, pulse forges the frequency height, and each deflection is little, the metal drag reduces, work of deformation is little, and the precision that pulse loads improving forging is very favourable.
Low-plasticity nonferrous metal round wire contour machining procedure step is as follows: A, elder generation will slightly justify the line tube reducing to inferior thick with the major diameter equipment of swaging, swaging, every time is furnished with the round forging die of different-diameter, should carry out 1~2 time annealing in process in the rotary swaging process, annealing temperature is controlled at 700 ℃~800 ℃ scopes; B, and then with in the diameter equipment of swaging will time thick circle line tube reducing to middle thick line, swage that every time is furnished with the round forging die of different-diameter, should carry out 1~2 time annealing in process in the forging process, annealing temperature is controlled at 680 ℃~780 ℃ scopes; C, at last with minor diameter swage equipment will in thick circle line tube reducing to fine rule, swage that every time is furnished with the round forging die of different-diameter, should carry out 1~2 time annealing in process in the rotary swaging process, annealing temperature is controlled at 650 ℃~750 ℃ scopes.
Major diameter working modulus value is 15~20%; Middle diameter working modulus value is 10~15%; Minor diameter working modulus value is 5~10%.Be processed as cold forging, the blank material is a low-plasticity nonferrous metal.
The low-plasticity nonferrous metal round wire contour machining equipment of forming by big belt pulley, final drive shaft and shell, it is characterized in that described shell one side is equipped with support plate, imports mouth and roller ring-shaped pressuring plate, the shell opposite side is equipped with final drive shaft, final drive shaft one end dress big belt pulley, the final drive shaft other end is the cross jaw; Several tups, several forging dies and several right angle liner plates are housed in the cross jaw; The even number roller that is the state of moving about evenly is housed in the cavity between cross jaw and steel ring; Steel ring is cased, and the steel ring other end is equipped with the roller ring-shaped pressuring plate; Tup, forging die rotate synchronously with final drive shaft in final drive shaft cross jaw.
In the radial cavities that leaves between adjacent two right angle liner plates, tup and forging die are contained in this cavity, and tup tup face can contact with roller, and tup and forging die can radially back and forth slidably reciprocate.Tup, forging die shape are mated mutually and quantity is corresponding mutually even number, and bigger interference fit is arranged between roller outer ring and the shell.
Used tup is a compression-type, and tup, right angle liner plate quantity respectively are 4, and forging die is a pintongs circle line mould; Described major diameter swager forging die diameter is φ 10~φ 20mm, and middle diameter swager is φ 8~φ 12mm, and the minor diameter swager is φ 5~φ 10mm; Before and after the used equipment of swaging charging and material receiving mechanism are set, the used equipment of swaging is equipped with a cover blimp outward.
The technological principle of swaging: in rotary swaging process, the value of working modulus should get big value according to original turned blank, process the principle that stock gets the small value carries out, be that working modulus should diminish gradually in the rotary swaging process, that its reason is that original turned blank is organized generally is loose, turned blank is organized generally fine and close.Usually span is big working modulus 15~20%, middle working modulus 10~15%, little working modulus 5~10%.According to working modulus and device structure, the present invention can be fabricated to major diameter swager φ 10~φ 20mm with swager, three kinds of middle diameter swager φ 8~φ 12mm and minor diameter swager φ 5~φ 10mm by circle forging die diameter.
Contour machining equipment structure of the present invention and operation principle are: big belt pulley (7) drives final drive shaft (6) rotation, final drive shaft (6) end is the cross jaw, tup (10) and forging die (11) are contained in the cross jaw of final drive shaft (6), and rotate with final drive shaft, quantity is to move about in the gap that the roller (12) of even number is limited between steel ring (8) and final drive shaft (6) the cross jaw, in the cross jaw of final drive shaft (6), level is installed, vertical and the direction of motion can radially be done back and forth to slidably reciprocate several tups (10) and several forging dies (11), when rotating synchronously, tup (10) produces active force (being compression) with the roller (12) of the state that moves about with final drive shaft (6) for tup (10) and forging die (11).When tup (10) and roller (12) when contacting, the active force of generation overcomes centrifugal force, and tup (10) extruding forging die (11) radially moves, and realizes a wire rod forging; When tup (10) and roller (11) when not contacting, forging die (11) is radially disconnected from each other under the acting in conjunction of centrifugal force and wire rod propulsive force, realizes that wire rod feeds.
Tup (10) and forging die (11) are done radial motion along right angle liner plate (9), and importing mouth (3) both guide line base material enters, and again forging die (11) is played the qualification effect.In actual production, forging die (11) needs running check and replacing, only needs to import mouth (3) separately and pulls down and can realize, and is swift and convenient to operate.Support plate (1) had both supported importing mouth (3), again steel ring (8) was located; Roller ring-shaped pressuring plate (2) and shading ring (4) are limited to roller (12) in the steel ring (8), and big interference is arranged between steel ring (8) and the shell (5), need hot charging to join.
This swager working modulus is compared less and even with other modes, be processed with the non-ferrous metal alloy wire so be fit to the processing low-plasticity difficulty, this machine also has other specific use, such as the thin-walled reducer pipe of using on some peculiar parts of using on the automobile, the building decoration etc., with the method processing very advantageous of swaging.But more with this machined passage, every time needs four branch forging dies (11), reduces to required diameter so will justify line from a certain diameter, and required processing forging die (11) group number is more.In addition, this machine rotary speed is higher, and tup and forging die motion frequency are very fast, the noise that body sends is relatively large, and for improving operating condition, tup (10) should be designed to compression-type, reduce noise thereby can reduce to impact, also can install a cover blimp additional in the swager outside.
In order to reduce labour intensity, also feeding mechanism and material receiving mechanism should be set before and after swager.Motive force before feeding mechanism produces, material receiving mechanism produces back pull, for harmonious with the forging die operating frequency, feeding mechanism and material receiving mechanism preferably and swager of the present invention use same power source.
Good effect and advantage that the present invention brought are: the processing of low-plasticity nonferrous metal wire rod, and because of it is measured less and processing difficulties, thus all lower with rolling, hubbing technology and economic indicator, and adopt the method for swaging, can demonstrate following advantage:
(1) the material stress is good: turned blank is subjected to the effect of three-dimensional compression stress, external friction power is little, flow of metal relaxes, so the powder sintered blank of high temperature infusibility inductile, the serious material of drawing sticking to mould and the extremely low powder material spray of intensity all can use technology of the present invention and equipment to process.
(2) effectively improve the tissue and the performance of metal: forging die can make the open grain structure of the porous incipient fusion blank with thick, thin brilliant cross-distribution progressively be transformed into the thin brilliant worked structure that densification aligns, and density, plasticity and the intensity etc. of workpiece all are significantly increased.
(3) save metal material: swage and compare with other method, have advantages such as small and exquisite, the simple to operate and strain energy of distortion consumption of equipment is few, cold forging obtains higher surface smoothness and dimensional accuracy, can replace turning and the moulding of grinding time processing under certain conditions.
Description of drawings:
Fig. 1 is a low-plasticity nonferrous metal round wire contour machining equipment cut-away view of the present invention.
Fig. 2 is a low-plasticity nonferrous metal round wire contour machining equipment shown in Figure 1---swager A-A direction cut-away view.
1-support plate; 2-roller ring-shaped pressuring plate; 3-importing mouth; 4-shading ring; 5-shell; 6-final drive shaft; 7-big belt pulley; 8-steel ring; 9-right angle liner plate; 10-tup; 11-forging die; 12-roller.
The specific embodiment: as depicted in figs. 1 and 2, tup (10) and forging die (11) are contained in the cross jaw of final drive shaft (6), and rotate with final drive shaft (6).Roller (12) is limited in the belt body that the cross jaw of steel ring (8) and final drive shaft (6) forms.When final drive shaft (6) rotated, tup (10) was subjected to the effect of roller (12), and tup (10) and forging die (11) radially move towards final drive shaft (6) axis direction jointly, forging die (11) close up and the hammering die cavity in rapidoprint.Final drive shaft (6) is rotation continuously, leave tup (10) top moment at roller (12), because centrifugal action, tup (10) and forging die (11) radially move towards the direction away from final drive shaft (6) axle center again, and forging die (11) is in open configuration, realize hammering circulation, final drive shaft (6) continuously rotates, then tup (10) constantly back and forth slidably reciprocates with forging die (11), and above-mentioned hammering process constantly repeats, and realizes the pulsed hammering.When forging die (11) was opened by centrifugal action, rapidoprint can constantly be sent in the swager along the axis direction of final drive shaft (6) and shape.
The present invention is in the process of swaging, and existing radial motion between tup (10) and the forging die (11) rotatablely move again, but rapidoprint itself is not rotated.Rapidoprint is subjected to strong three-dimensional compressive stress effect, and swager final drive shaft (6) revolution moves a week, can make forging die (11) that rapidoprint is carried out the several hammering.Because final drive shaft (6) is rotation at a high speed, every time processing capacity all is to finish by tens of even up to a hundred hammering, the processing capacity of each hammering is smaller, therefore rapidoprint is subjected to being evenly distributed on compression radially and is out of shape, it can eliminate the defective such as pore, cavity of rapidoprint inside, broken thick crystal grain, thus the rapidoprint internal organizational structure changed, improve drawing abillity and percentage elongation.Swaging is to utilize to be distributed in rapidoprint cross section plural tup (10) on every side, and material is carried out lock-out pulse to hitting, and makes a kind of forging that its diameter reduces, length increases.The present invention adopts the four tups mode of swaging not only to guarantee machining accuracy but also simplified apparatus structure, and roller (12) evenly distributes and is even number.
Embodiment 1: use swager illustrated in figures 1 and 2 with nickelic plumbous packfong machine-shaping.
One, with nickelic plumbous packfong (nickeliferous 17%~19%) circle line from φ 20 tube reducings to φ 5, can adopt following technical process:
(1), earlier with the major diameter swager will justify line from φ 20 tube reducings to φ 11.2, institute's mould that uses need be annealed once when round line from φ 20 reduce to φ 16.5 after as φ 20, φ 18, φ 16.5, φ 15, φ 13.8, φ 12.5 and φ 11.2 seven secondary circle forging dies totally; Anneal once after the circle line reduces to φ 12.5 from φ 16.5, the each annealing temperature of nickelic plumbous packfong is 700 ℃ again.
(2), again with in the diameter swager will justify line from φ 11.2 tube reducings to φ 8, the mould that adopts is φ 11.2, φ 10.2, φ 9.4, φ 8.8, φ 8.4 and φ 8 totally six secondary circle forging dies, needs annealing once after the circle line reduces to φ 9.4 from φ 11.2; Annealing because of the circle linear diameter has subtracted lessly, is 680 ℃ so nickelic plumbous packfong annealing temperature can be hanged down slightly once again after the circle line reduces to φ 8.4 from φ 9.4.
(3), at last with the minor diameter swager will justify line from φ 8 tube reducings to φ 5, the mould that adopts for circle mould φ 8, φ 6.8, φ 6, φ 5.4 and φ 5 totally five secondary circle forging dies, when the circle line reduces to φ 6 after annealings once from φ 58; Anneal once after the circle line reduces to φ 5.4 from φ 6, nickelic plumbous packfong annealing temperature is reduced to 650 ℃ again.But whether need annealing in the middle of after the circle line reduces to φ 5.4 from φ 6, should look concrete condition and adopt:, then need adopt this intermediate annealing if φ 5 circle lines are the next procedure blank; If φ 5 circle lines are the finished product material, then need according to the requirement of purchaser the material soft or hard, whether decision carries out this intermediate annealing processing again.
Embodiment 2: use swager illustrated in figures 1 and 2 with dispersion-strengthened Cu materials processing moulding.
One, with dispersion-strengtherning copper coin line from φ 20 tube reducings to φ 5, can adopt following technical process:
(1) earlier with the major diameter machine will justify line from φ 20 tube reducings to φ 11.2, the mould that adopts is φ 20, φ 18, φ 16.5, φ 15, φ 13.8, φ 12.5 and φ 11.2 totally seven secondary circle forging dies, need anneal once after round line reduces to φ 16.5 from φ 20; Anneal once after the circle line reduces to φ 12.5 from φ 16.5, the dispersion-strengthened Cu annealing temperature is 800 ℃ again.
(2) again with in the diameter machine will justify line from φ 11.2 tube reducings to φ 8, the mould that adopts is φ 11.2, φ 10.2, φ 9.4, φ 8.8, φ 8.4 and φ 8 totally six secondary circle forging dies, needs annealing once after the circle line reduces to φ 9.4 from φ 11.2; Anneal once after the circle line reduces to φ 8.4 from φ 9.4, the dispersion-strengthened Cu annealing temperature is reduced to 780 ℃ again.
(3) at last with the minor diameter machine will justify line from φ 8 tube reducings to φ 5, the mould that adopts is φ 8, φ 6.8, φ 6, φ 5.4, φ 5 totally five secondary circle forging dies, needs annealing once after the circle line reduces to φ 6 from φ 8; Anneal once after the circle line reduces to φ 5.4 from φ 6, the dispersion-strengthened Cu annealing temperature is reduced to 750 ℃ more again.But φ 6 reduces to the intermediate annealing behind the φ 5.4, should look concrete condition equally and adopt: if φ 5 circle lines are the next procedure blank, then need adopt this intermediate annealing; If φ 5 circle lines are the finished product material, then need according to the requirement of purchaser the material soft or hard, whether decision adopts this intermediate annealing again.

Claims (9)

1, a kind of low-plasticity nonferrous metal round wire contour machining procedure is characterized in that this technology may further comprise the steps:
A, earlier will slightly justify the line tube reducing to time slightly with the major diameter equipment of swaging, and swage that every time will be furnished with the round forging die of different-diameter, and carry out annealing in process in the rotary swaging process 1 ~ 2 time, annealing temperature is controlled at 700 ℃~800 ℃ scopes;
B, and then with in the diameter equipment of swaging will time thick circle line tube reducing to middle thick line, swage that every time is furnished with the round forging die of different-diameter, carry out annealing in process in the forging process 1 ~ 2 time, annealing temperature is controlled at 680 ℃~780 ℃ scopes;
C, at last with minor diameter swage equipment will in thick circle line tube reducing to fine rule, swage that every time is furnished with the round forging die of different-diameter, carry out annealing in process in the rotary swaging process 1 ~ 2 time, annealing temperature is controlled at 650 ℃~750 ℃ scopes.
2, low-plasticity nonferrous metal round wire contour machining procedure according to claim 1 is characterized in that the major diameter equipment working modulus value of swaging is 15 ~ 20%; In the diameter equipment working modulus value of swaging be 10 ~ 15%; The minor diameter equipment working modulus value of swaging is 5 ~ 10%.
3, low-plasticity nonferrous metal round wire contour machining procedure according to claim 1 and 2 is characterized in that being processed as cold forging, and the blank material is a low-plasticity nonferrous metal.
4, according to claim 1 or the used equipment of swaging of 2 described low-plasticity nonferrous metal round wire contour machining procedures, form by big belt pulley (7), final drive shaft (6) and shell (5), it is characterized in that described shell (5) one sides are equipped with support plate (1), import mouth (3) and roller ring-shaped pressuring plate (2), shell (5) opposite side is equipped with final drive shaft (6), final drive shaft (6) one ends dress big belt pulley (7), final drive shaft (6) other end is the cross jaw;
Several tups (10), several forging dies (11) and several right angle liner plates (9) are housed in the cross jaw;
The even number roller (12) that is the state of moving about evenly is housed in the cavity between cross jaw and steel ring (8);
Steel ring (8) is contained in the shell (5), and steel ring (8) other end is equipped with roller ring-shaped pressuring plate (2);
Tup (10), forging die (11) rotate synchronously with final drive shaft (6) in final drive shaft (6) cross jaw.
5, the used equipment of swaging of low-plasticity nonferrous metal round wire contour machining procedure according to claim 4, it is characterized in that leaving radial cavities between adjacent two right angle liner plates (9), tup (10) and forging die (11) are contained in this cavity, and the tup face of tup (10) can contact with roller (12), and tup (10) can radially back and forth slidably reciprocate with forging die (11).
6, the used equipment of swaging of low-plasticity nonferrous metal round wire contour machining procedure according to claim 4, it is characterized in that tup (10), forging die (11) shape mate mutually, and quantity is corresponding mutually even number, between roller (12) outer ring and the shell (5) bigger interference fit is arranged.
7, the used equipment of swaging of low-plasticity nonferrous metal round wire contour machining procedure according to claim 4 is characterized in that used tup (10) is a compression-type, and tup (10), right angle liner plate (9) quantity respectively are 4, and forging die (11) is pintongs circle line mould.
8, the used equipment of swaging of low-plasticity nonferrous metal round wire contour machining procedure according to claim 1, it is characterized in that the described major diameter equipment forging die diameter of swaging is φ 10 ~ φ 20mm, in the diameter equipment forging die diameter of swaging be φ 8 ~ φ 12mm, the minor diameter equipment forging die diameter of swaging is φ 5 ~ φ 10mm.
9, the used equipment of swaging of low-plasticity nonferrous metal round wire contour machining procedure according to claim 4, it is characterized in that used major diameter swage equipment and the minor diameter of equipment, middle diameter of swaging swage and be provided with charging and material receiving mechanism before and after the equipment, used major diameter swage equipment and the minor diameter equipment of swaging of equipment, middle diameter of swaging all is equipped with a cover blimp outward.
CNB2006100106641A 2006-01-27 2006-01-27 Machining process and equipment for low-plasticity nonferrous metal round wire formation Expired - Fee Related CN100486759C (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103056192A (en) * 2013-01-28 2013-04-24 江苏金圣铜业科技有限公司 Manufacture method of high-conductivity and high-hardness micropore copper pipe
CN103286481B (en) * 2013-05-21 2015-10-21 抚顺东工冶金材料技术有限公司 A kind of machining manufacture of novel solid welding wire
CN105369067B (en) * 2015-11-04 2017-10-27 重庆材料研究院有限公司 The thermocouple material and preparation method of stable thermometric in oxide isolation
CN106040934A (en) * 2016-07-14 2016-10-26 王剑波 Rotating pulse cold forging unit for steel tube
CN110576073A (en) * 2018-06-09 2019-12-17 南京理工大学 Preparation method of ultra-long copper and copper alloy wire

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CN1203375A (en) * 1997-06-20 1998-12-30 昆明冶金研究所 Method for producing precision special-shaped material of copper containing white lead
CN1046223C (en) * 1992-04-20 1999-11-10 吉田桂一郎 Method and apparatus for precision mold forging
CN1147606C (en) * 2002-10-24 2004-04-28 西安交通大学 Electrode material of alloy element added with tungsten oxide and its preparation technique

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US5040294A (en) * 1987-10-28 1991-08-20 Schwabische Huttenwerke Gmbh Process for producing a camshaft
CN1046223C (en) * 1992-04-20 1999-11-10 吉田桂一郎 Method and apparatus for precision mold forging
CN1203375A (en) * 1997-06-20 1998-12-30 昆明冶金研究所 Method for producing precision special-shaped material of copper containing white lead
CN1147606C (en) * 2002-10-24 2004-04-28 西安交通大学 Electrode material of alloy element added with tungsten oxide and its preparation technique

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