CN103604716A - Screw rod spiral groove accelerated wear tester and test method thereof - Google Patents
Screw rod spiral groove accelerated wear tester and test method thereof Download PDFInfo
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- CN103604716A CN103604716A CN201310618319.6A CN201310618319A CN103604716A CN 103604716 A CN103604716 A CN 103604716A CN 201310618319 A CN201310618319 A CN 201310618319A CN 103604716 A CN103604716 A CN 103604716A
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Abstract
The invention discloses a screw rod spiral groove accelerated wear tester which comprises a base, a lower screw rod fixing plate, an upper screw rod fixing plate, a driving device for driving a screw rod to be tested, a balancing weight guide rod and a guide shaft base movably connected to the balancing weight guide rod, wherein the lower screw rod fixing plate and the upper screw rod fixing plate are arranged on the base; the guide shaft base is provided with a guide shaft which is in clearance fit with a spiral groove in the screw rod to be tested; the driving device drives the screw rod to be tested to do positive and negative rotations; the rotation motion is converted into repeated linear motion of a balancing weight base and the guide shaft through the guide shaft matched with the spiral groove. A wear model can shorten the test time by increasing the pressure p of the guide shaft to the surface of the screw rod to be tested. The invention also provides a test method adopting the screw rod spiral groove accelerated wear tester.
Description
Technical field
Accelerated wear test machine and the test method thereof of screw mandrel wearing quality, specifically refer to accelerated wear test machine and the test method thereof of a kind of screw mandrel helicla flute side wearing quality.
Background technology
Stylus printer, the screw rod transmission pair on especially miniature stylus printer is the key mechanism of printer.Along with the growth in printer miscellaneous part life-span, people are more and more higher to the requirement of printer life-span and print quality.Nowadays the mini-printer of many companies claims that machine life is 1,200 ten thousand row, with regard to requiring screw mandrel and the axis of guide, this is guaranteeing that to friction pair printer does not occur that the life-span of the faults such as word mechanism of car is stuck, printing step-out is 1.2 * 107 row for this, and such high life requires to have caused the wearing quality of screw rod transmission pair far can not meet the demands.In order to develop the reasonable screw mandrel of wearing quality, researchist has done a large amount of research work, but finally all need to do screw mandrel abrasion test, stylus printer manufacturer generally takes actual-service test method to carry out the evaluation of the secondary wearing quality of screw rod transmission at present.If calculate (printing every day 8 hours) by printing continuously 30,000 row every day, printing 1,200 ten thousand row needs 400 days.In order to shorten test period, can take to arrange round the clock the method for personnel's continuous printing on duty, but the test period also often need 3-4 month, do not meet actual timeliness demand.
Summary of the invention
In order to shorten the abrasion test time, the invention reside in the defect that overcomes prior art, provide a kind of screw mandrel helicla flute accelerated wear test machine and test method thereof.
Its technical scheme is as follows:
A kind of screw mandrel helicla flute accelerated wear test machine, comprise base, be installed on screw mandrel bottom plate on base and screw mandrel upper mounted plate, for driving the drive unit of screw mandrel to be measured, also comprise balancing weight guide rod, be movably connected on the axis of guide base on described balancing weight guide rod, described axis of guide base has the axis of guide for the helicla flute clearance fit with screw mandrel to be measured.
Described drive unit drives the rotating of screw mandrel to be measured rotation, by the axis of guide of helicla flute clearance fit with it, changes the rectilinear motion repeatedly of setting base for counter weight and the axis of guide rotatablely moving into.According to wear model
by increasing the surface pressing p of the axis of guide to screw mandrel to be measured, can realize shortening test period.
Further, described axis of guide base is provided with the balancing weight that can change.By changing balancing weight realization, change fast, simply the surface pressing p that the axis of guide is treated lateral filament bar, thereby obtain many group test datas.
Further, the xsect of described axis of guide base is " recessed " font, and it comprises the recess of medial recess and two protuberances that protrude both sides, and the described axis of guide protrudes from described recess, above described protuberance, have mounting hole, described balancing weight is arranged on described axis of guide base by mounting hole.
Further, on two protuberances of axis of guide base, there is respectively through hole, described axis of guide base coordinates with balancing weight guide rod through its through hole by above-mentioned balancing weight guide rod, thereby make axis of guide base laterally limited, longitudinally be limited between screw mandrel bottom plate and screw mandrel upper mounted plate, limiting better the linear movement direction repeatedly of axis of guide base and balancing weight guide rod.
Further, malthoid is installed in through hole, by malthoid, be connected with above-mentioned balancing weight guide rod, thereby alleviate, even prevent the wearing and tearing that cause due to the relative displacement between axis of guide base and balancing weight guide rod, and then extend the serviceable life of screw mandrel helicla flute accelerated wear test machine.
Further, described base comprises vertical component effect and horizontal part, offers vertical channel on vertical component effect, and described lower screw rod fixing plate was arranged on vertical component effect by fixed part and coordinating of vertical channel.
Further, the vertical component effect of described base offers two vertical channel, and described two vertical channel are parallel to each other, make screw mandrel bottom plate can optionally be arranged on the diverse location place of described vertical channel, make screw mandrel helicla flute accelerated wear test machine can realize the wearability test of different length screw mandrel.
Further, described drive unit comprise stepper, with the main shaft of stepper on the gear wheel installed of logical interference fit and with the pinion wheel of described gear wheel engagement, by pinion wheel, being connected with the different in nature convex-concave profile of tooth mating surface of screw mandrel to be measured rotatablely moves passes to screw mandrel.
A test method of utilizing above-mentioned screw mandrel helicla flute accelerated wear test machine, comprises the following steps:
S1: the measurement initiating terminal of mark screw mandrel;
S2: along the central axis line of screw mandrel;
S3: from screw mandrel, measure initiating terminal and measure successively screw mandrel helicla flute original width A1 along line vestige, A2, A3 ... An;
S4: install screw mandrel in the screw mandrel helicla flute accelerated wear test machine described in the claims 1-8 any one, carry out screw mandrel wear testing recording test time;
S5: from screw mandrel, measure initiating terminal and along line vestige, measure successively the width B 1 of screw mandrel wearing and tearing rear screw groove, B2, B3 ... Bn;
S6: utilize
calculate the screw mandrel wear extent w in the test duration.
According to wear model
(w is screw mandrel spiral fluted wear extent to be measured, k is the friction factor between helicla flute and the axis of guide, x is the relative shift between helicla flute and the axis of guide, p is spiral fluted surface pressing, H is the hardness of screw mandrel), the p value that weight by axis of guide base draws calculates screw mandrel spiral fluted wear extent to be measured, thereby realizes the accelerated wear test of screw mandrel spiral fluted.
Further, between step S4 and S5, also comprise the step of utilizing Ultrasonic Cleaning screw mandrel.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the accelerated wear test machine of stylus printer screw mandrel helicla flute wearing quality described in the embodiment of the present invention.
Fig. 2 is the enlarged drawing at another visual angle of the axis of guide base of the accelerated wear test machine of stylus printer screw mandrel helicla flute wearing quality described in the embodiment of the present invention.
Fig. 3 is the screw mandrel schematic diagram of the test method of the screw mandrel helicla flute accelerated wear test machine described in the embodiment of the present invention.
Description of reference numerals:
1. balancing weight guide rod 2. screw mandrel bottom plate 3. axis of guide base 4. screw mandrel upper mounted plate 5. gear wheel 6. motor fixing plate 7. stepper motor 8. pinion wheel 9. screw mandrel 10. balancing weight 11. base 12. axis of guide 30. recess 31. protuberance 32. mounting hole 33. through hole 90. helicla flute 100. screw mandrel helicla flute accelerated wear test machine 110. vertical channel 111. vertical component effect 112. horizontal part 113. bolts
Embodiment
Below embodiments of the invention are elaborated:
As shown in Figure 1, screw mandrel helicla flute accelerated wear test machine 100 of the present invention comprises balancing weight guide rod 1, screw mandrel bottom plate 2, axis of guide base 3, screw mandrel upper mounted plate 4, gear wheel 5, motor fixing plate 6, stepper motor 7, pinion wheel 8, balancing weight 10, base 11.Base 11 is down the sheet metal component of " T " font for shape of cross section, and it comprises vertical component effect 111 and horizontal part 112.On the vertical component effect 111 of base plate 11, offer vertical channel 110.In the present embodiment, the quantity of described vertical channel 110 is two, and described two vertical channel 110 are parallel to each other.Described screw mandrel bottom plate 2, screw mandrel upper mounted plate 4 and motor fixing plate 6 are the sheet metal component of " L " type for shape of cross section, and by bolt 113, are installed on the vertical component effect 111 of described base plate 11.Wherein, screw mandrel bottom plate 2 is coordinated and is installed on described vertical component effect 111 with described two vertical channel 110 by bolt 113.In another embodiment, the shape of cross section of described screw mandrel bottom plate 2, screw mandrel upper mounted plate 4 and motor fixing plate 6 also can be T-shape or other shapes.Described stepper motor 7 is arranged on motor fixing plate 6.On the main shaft of stepper motor 7, logical interference fit is installed described gear wheel 5.One end of described balancing weight guide rod 1 is arranged on screw mandrel upper mounted plate 4, and the other end of balancing weight guide rod 1 is arranged on base 11 by screw mandrel bottom plate 2.
As shown in Figure 2, the xsect of described axis of guide base 3 is " recessed " font, and it comprises the recess 30 of medial recess and two protuberances 31 that protrude both sides.On described recess 30, protrude out an axis of guide 12.Described protuberance 31 has mounting hole 32 above.In the present embodiment, on each protuberance 31, there are two mounting holes 32, then by two mounting holes 32, be connected with above-mentioned balancing weight 10.Balancing weight 10 has the installation tenon (not shown) corresponding with described mounting hole 32.On two protuberances 31 of axis of guide base 3, have respectively through hole 33, each through hole 33 medial surface is separately installed with malthoid (not shown).Described axis of guide base 3 coordinates with balancing weight guide rod 1 through its through hole 33 by above-mentioned balancing weight guide rod 1, makes axis of guide base 3 laterally limited, is longitudinally being limited between screw mandrel bottom plate 2 and screw mandrel upper mounted plate 4.Owing to having malthoid in through hole 33, malthoid can alleviate and even prevents the wearing and tearing that cause due to the relative displacement between axis of guide base 3 and balancing weight guide rod 1, and then extends the serviceable life of screw mandrel helicla flute accelerated wear test machine 100.
Screw mandrel 9 to be tested is a screw mandrel 9 for stylus printer, and its surface has some helicla flutes 90.Especially, described screw mandrel to be tested 9 is for miniature stylus printer.Described screw mandrel to be tested 9 passes from the recess 30 of above-mentioned axis of guide base 3, and its one end is arranged on screw mandrel bottom plate 2, and one end is arranged on screw mandrel upper mounted plate 4 in addition, and is connected with described pinion wheel 8 through described screw mandrel upper mounted plate 4.Preferably, described screw mandrel 9 coordinates and is connected by profile of tooth with pinion wheel 8.There is gear motion with described pinion wheel 8 in described gear wheel 5.The above-mentioned axis of guide 12 forms clearance fit with the helicla flute 90 of screw mandrel 9, and in helicla flute 90 slide inside frictions.Screw mandrel 9 drives balancing weight 10, axis of guide base 3 to do upper and lower rectilinear motion by the axis of guide 12.Because screw mandrel bottom plate 2 is coordinated and is installed on described vertical component effect 111 with described two vertical channel 110 by bolt 113, therefore screw mandrel bottom plate 2 can optionally be arranged on the diverse location place of described vertical channel 110, makes screw mandrel helicla flute accelerated wear test machine 100 can realize the wearability test of different length screw mandrel 9.
When the screw mandrel helicla flute accelerated wear test machine 100 of the embodiment of the present invention is worked, stepper motor 7 rotations, gear motion by gear wheel 5 with pinion wheel 8, rotatablely moving, pass to pinion wheel 8, thereby pinion wheel 8 is connected and rotatablely moving, is passed to screw mandrel 9 driving screw mandrel 9 rotations by different in nature convex-concave profile of tooth mating surface with screw mandrel 9; Screw mandrel 9 rotations, by the axis of guide 12 that helicla flute 90 coordinates with it, change the rectilinear motion of setting base for counter weight 3, balancing weight 10 and the axis of guide 12 into rotatablely moving.Stepper motor 7 can be by control panel control or manual control realize accelerate to rotate, positive and negative rotation, thereby realize the acceleration of setting base for counter weight 3, balancing weight 10 and the axis of guide 12, rectilinear motion repeatedly.Screw mandrel 9 drives the axis of guide 12 to drive setting base for counter weight 3, balancing weight 10 and the axis of guide 12 to do upper and lower rectilinear motion, realizes wear test.
As shown in Figure 3, the test method of utilizing above-mentioned screw mandrel helicla flute accelerated wear test machine 100 described in the embodiment of the present invention comprises the following steps:
S1: the measurement initiating terminal of mark screw mandrel 9.
Particularly, with scriber, at screw mandrel 9 one end faces to be measured, mark, screw mandrel 9 one end indicate mark becomes measurement initiating terminal.
S2: along the central axis line of screw mandrel 9.
Particularly, utilize the diameter of vernier height gauge or miking screw mandrel 9 to be measured, at diverse location, measure repeatedly, preferably, measuring number of times is three times, averages and obtains the diameter of screw mandrel 9, then vernier height gauge is adjusted to half height and rules along screw mandrel 9 axles.
S3: the original width A that measures the helicla flute 90 of screw mandrel 9.
Particularly, the screw mandrel 9 of ruling is put under optical profilometer, from the measurement initiating terminal of screw mandrel 9, along line vestige, measures successively the original width A1 of screw mandrel 9 helicla flutes 90, A2, A3 ... An.
S4: install screw mandrel in above-mentioned screw mandrel helicla flute accelerated wear test machine 100, carry out wear testing the recording test time of screw mandrel 9.
Particularly, screw mandrel to be measured 9 one end are arranged on screw mandrel bottom plate 2, and block upper shed back-up ring; In addition one end through screw mandrel upper mounted plate 4 and be connected with described pinion wheel 8 after and block upper shed back-up ring, prevent that screw mandrel from coming off in experiment.Drive described screw mandrel to be measured 9 to rotate and the axis of guide by helicla flute 90 clearance fit with screw mandrel 9 to be measured drives described axis of guide base 11 moving linearlies, and record test start time t1 and test end time t2, (t2-t1) be the test duration.
S5: the rear width B of helicla flute 90 wearing and tearing of measuring silk 9.
Particularly, wearing and tearing filament bar 9 is put under optical profilometer, from screw mandrel 9, measures initiating terminal and along line vestige, measure successively the width B 1 of screw mandrel 9 wearing and tearing rear screw grooves 90, B2, B3 ... Bn.
S6: ask screw mandrel wear extent w.With
calculate the screw mandrel wear extent w of test duration when (t2-t1).
Understandably, between step S4 and S5, also comprise the step of utilizing Ultrasonic Cleaning screw mandrel.
According to Archard wear model
(w is the wear extent of sample, and k is friction factor, and x is the relative shift between friction pair, p is the surface pressing of sample, H is the hardness of sample), known wear extent W is directly proportional to the relative shift between friction factor, surface pressing and friction pair, is inversely proportional to the hardness of sample.If therefore the weight of suitable increase balancing weight 10 just can increase the surface pressing p of sample, can realize shortening test period.
Understandably, screw mandrel helicla flute accelerated wear test machine 100 of the present invention is not limited to utilize the gear motion between gear to pass to screw mandrel 9 rotatablely moving, as long as can drive the drive unit of screw mandrel 9 rotations.It is to utilize bolt 113 fixing described screw mandrel bottom plate 2, screw mandrel upper mounted plate 4 and motor fixing plate 6 that screw mandrel helicla flute accelerated wear test machine 100 of the present invention does not limit yet, so long as the fixed part of above-mentioned plate can be installed.
Screw mandrel helicla flute accelerated wear test machine 100 of the present invention is the actual service condition accelerated wear test of a kind of simulation screw mandrel 9 machines, compared with actual service test method, significantly shortened the abrasion test time on the one hand, in addition on the one hand due to simple to operate, can draw many group experimental datas by changing experiment condition, make experimental result have more practical value compared with laboratory test specimen experimental technique.Have again, simple in structure due to screw mandrel helicla flute accelerated wear test machine 100 of the present invention, cost is low, is applicable to industry and promotes the use of.
The above embodiment has only expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. a screw mandrel helicla flute accelerated wear test machine, comprise base, be installed on screw mandrel bottom plate on base and screw mandrel upper mounted plate, for driving the drive unit of screw mandrel to be measured, it is characterized in that: also comprise balancing weight guide rod, be movably connected on the axis of guide base on described balancing weight guide rod, described axis of guide base has the axis of guide for the helicla flute clearance fit with screw mandrel to be measured.
2. screw mandrel helicla flute accelerated wear test machine as claimed in claim 1, is characterized in that: described axis of guide base is provided with the balancing weight that can change.
3. screw mandrel helicla flute accelerated wear test machine as claimed in claim 2, it is characterized in that: the xsect of described axis of guide base is " recessed " font, it comprises the recess of medial recess and two protuberances that protrude both sides, the described axis of guide protrudes from described recess, above described protuberance, have mounting hole, described balancing weight is arranged on described axis of guide base by mounting hole.
4. screw mandrel helicla flute accelerated wear test machine as claimed in claim 3, is characterized in that: on two protuberances of axis of guide base, have respectively through hole, described axis of guide base coordinates with balancing weight guide rod through its through hole by above-mentioned balancing weight guide rod.
5. screw mandrel helicla flute accelerated wear test machine as claimed in claim 4, is characterized in that: malthoid is installed in through hole, by malthoid, is connected with above-mentioned balancing weight guide rod.
6. screw mandrel helicla flute accelerated wear test machine as claimed in claim 1, it is characterized in that: described base comprises vertical component effect and horizontal part, on vertical component effect, offer vertical channel, described lower screw rod fixing plate was arranged on vertical component effect by fixed part and coordinating of vertical channel.
7. screw mandrel helicla flute accelerated wear test machine as claimed in claim 6, is characterized in that: the vertical component effect of described base offers two vertical channel, and described two vertical channel are parallel to each other.
8. screw mandrel helicla flute accelerated wear test machine as claimed in claim 1, is characterized in that: described drive unit comprise stepper, with the main shaft of stepper on the gear wheel installed of logical interference fit and with the pinion wheel of described gear wheel engagement.
9. a test method of utilizing the screw mandrel helicla flute accelerated wear test machine described in the claims 1-8 any one, comprises the following steps:
S1: the measurement initiating terminal of mark screw mandrel;
S2: along the central axis line of screw mandrel;
S3: from screw mandrel, measure initiating terminal and measure successively screw mandrel helicla flute original width A1 along line vestige, A2, A3 ... An;
S4: install screw mandrel in the screw mandrel helicla flute accelerated wear test machine described in the claims 1-8 any one, carry out screw mandrel wear testing recording test time;
S5: from screw mandrel, measure initiating terminal and along line vestige, measure successively the width B 1 of screw mandrel wearing and tearing rear screw groove, B2, B3 ... Bn;
S6: utilize
calculate the screw mandrel wear extent w in the test duration.
10. test method as claimed in claim 9, is characterized in that: between step S4 and S5, also comprise the step of utilizing Ultrasonic Cleaning screw mandrel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618319.6A CN103604716B (en) | 2013-11-27 | 2013-11-27 | Screw rod spiral groove accelerated wear test machine and test method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618319.6A CN103604716B (en) | 2013-11-27 | 2013-11-27 | Screw rod spiral groove accelerated wear test machine and test method thereof |
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| Publication Number | Publication Date |
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| CN103604716A true CN103604716A (en) | 2014-02-26 |
| CN103604716B CN103604716B (en) | 2016-10-05 |
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| CN201310618319.6A Expired - Fee Related CN103604716B (en) | 2013-11-27 | 2013-11-27 | Screw rod spiral groove accelerated wear test machine and test method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792640A (en) * | 2015-04-08 | 2015-07-22 | 东南大学 | Wear measurement test bed for ball screw pair |
| CN108195700A (en) * | 2017-12-26 | 2018-06-22 | 重庆程顺汽车配件制造有限公司 | Tire wear test structure and its manufacturing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273015Y (en) * | 1996-10-09 | 1998-01-21 | 大连海事大学 | Reciprocating flat surface wear test machine |
| CN2686752Y (en) * | 2004-03-15 | 2005-03-23 | 中国第二十冶金建设公司检修协力分公司 | Blooming mill screwdown screw wear measuring device |
| CN101701890A (en) * | 2009-10-27 | 2010-05-05 | 华南理工大学 | Abrasion test method for determining rational hardness pairing of friction pair |
| CN101994803A (en) * | 2010-11-19 | 2011-03-30 | 成都焊研威达科技股份有限公司 | Lifting nut pair with wear detector |
| CN102445340A (en) * | 2011-09-30 | 2012-05-09 | 优励聂夫（南京）科技有限公司 | Loading running-in device for ball screw pair and running-in testing method thereof |
| CN203772665U (en) * | 2013-11-27 | 2014-08-13 | 广州铁路职业技术学院 | Accelerated wearing testing machine for spiral groove of lead screw |
-
2013
- 2013-11-27 CN CN201310618319.6A patent/CN103604716B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273015Y (en) * | 1996-10-09 | 1998-01-21 | 大连海事大学 | Reciprocating flat surface wear test machine |
| CN2686752Y (en) * | 2004-03-15 | 2005-03-23 | 中国第二十冶金建设公司检修协力分公司 | Blooming mill screwdown screw wear measuring device |
| CN101701890A (en) * | 2009-10-27 | 2010-05-05 | 华南理工大学 | Abrasion test method for determining rational hardness pairing of friction pair |
| CN101994803A (en) * | 2010-11-19 | 2011-03-30 | 成都焊研威达科技股份有限公司 | Lifting nut pair with wear detector |
| CN102445340A (en) * | 2011-09-30 | 2012-05-09 | 优励聂夫（南京）科技有限公司 | Loading running-in device for ball screw pair and running-in testing method thereof |
| CN203772665U (en) * | 2013-11-27 | 2014-08-13 | 广州铁路职业技术学院 | Accelerated wearing testing machine for spiral groove of lead screw |
Non-Patent Citations (2)
| Title |
|---|
| 屠国俊: "滚动功能部件可靠性试验、分析及评估方法研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 项美根 等: "阀杆螺母磨损量的测量与计算", 《流体工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792640A (en) * | 2015-04-08 | 2015-07-22 | 东南大学 | Wear measurement test bed for ball screw pair |
| CN108195700A (en) * | 2017-12-26 | 2018-06-22 | 重庆程顺汽车配件制造有限公司 | Tire wear test structure and its manufacturing method |
| CN108195700B (en) * | 2017-12-26 | 2020-04-24 | 重庆程顺汽车配件制造有限公司 | Tire wear test structure and manufacturing method thereof |
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