CN103018273A - Device and method for testing hot-shrinkage rate of chemical fiber filaments - Google Patents
Device and method for testing hot-shrinkage rate of chemical fiber filaments Download PDFInfo
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- CN103018273A CN103018273A CN2013100019183A CN201310001918A CN103018273A CN 103018273 A CN103018273 A CN 103018273A CN 2013100019183 A CN2013100019183 A CN 2013100019183A CN 201310001918 A CN201310001918 A CN 201310001918A CN 103018273 A CN103018273 A CN 103018273A
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Abstract
The invention relates to a device and method for testing the hot-shrinkage rate of chemical fiber filaments. The device comprises a dual-limiter structure and a force measuring sensor; the dual-limiter structure comprises an upper hanging hook, a lower hanging hook, upper hanging hook discs, upper limiters, lower hanging hook discs, lower limiters and metallic guide wires; and the force measuring sensor and toggle mechanisms connected with the force measuring sensor are mounted, the upper hanging hook discs can be supported to move upwardly, the lower hanging hook discs upwardly move to the lower limiters, are limited by the lower limiters, and then stop moving, the upper hanging hook discs continuously rise and then apply tension to a reeled filament sample, the force measuring sensor bears a downward load, the device automatically measures the length of the reeled filament sample before/after heating under the preset standard tension, and thus, the hot-shrinkage rate of a chemical fiber filament sample is measured. The device and the method have the advantages that the accuracy of hot-shrinkage rate testing for the chemical fiber filament sample is obviously improved, the standardization and calibration of a force measuring system are convenient, the structure is reliable, and the failure rate is greatly reduced.
Description
Technical field
The invention belongs to textile chemical fiber surveying instrument field, particularly a kind of proving installation of chemical-fibres filaments percent thermal shrinkage and method of testing thereof, it is applicable to the quality control of chemical fibre mill and textile enterprise, testing agency to the check of fiber quality.
Background technology
The percent thermal shrinkage of chemical-fibres filaments is one of major parameter that characterizes fibre structure and character, is an integrated performance index relevant with processes such as chemical-fibres filaments shaping and aftertreatments, the dimensional stability during its sign product aftertreatment and product are taken.The percent thermal shrinkage of chemical-fibres filaments and postfinishing process, product dyeability close relation directly affect wearability of fabric and appearance effect.Therefore, percent thermal shrinkage method of testing and the device thereof of research chemical-fibres filaments are of great significance.
The measuring method of chemical-fibres filaments percent thermal shrinkage, to measure respectively the chemical-fibres filaments length before the heating and the length after the heat shrink under certain pre-set criteria tension force, ask for the percent thermal shrinkage value of tested chemical-fibres filaments according to its length difference divided by the front length of heating, automatically calculate sample mean percent thermal shrinkage and the coefficient of variation behind mensuration some samples.Test chemical-fibres filaments percent thermal shrinkage method requires difference that baking oven heating and boiling water thermal shrinkage method are arranged according to sample testing, according to the test sample difference single method or hank knotting method are arranged, for the measuring method of specimen length before and after the heating, the domestic manual method that mostly is begins to adopt instrument in recent years.Instrument measuring method is crispaturaed the rate tester as representative take the TEXTURMAT ME type chemical-fibres filaments that German Textechno company produces abroad, this instrument adopts hank knotting method sample, the chemical-fibres filaments rate of crispaturaing is tested with the percent thermal shrinkage test and is incorporated on the instrument, the former requires the dynamometry load large, the latter requires the dynamometry load little, and both share the precision that an instrument has unavoidably reduced chemical-fibres filaments dimensional stability to heating in house test result.More be not suitable for for only doing percent thermal shrinkage test do not need the to crispatura product of rate test in the chemical-fibres filaments.In addition, this instrument is that hank knotting sample upper end is fixing in the dynamometry mode, force cell moves down and inserts lower hook dish top, afterburning downwards to the hank knotting sample, the length of measurement hank knotting sample when some tension, this measuring method force cell is stressed serves as reasons down upwards, demarcates calibration to instrument power value and brings difficulty, and not only affecting its measuring accuracy also makes troubles to the operation use.In addition, this instrument hank knotting sample is 1 meter of girth, length 500mm after hanging, and instrument is bulky, and is expensive.The YG368 type full automatic filament crimp contraction tester of recent year production is the instrument of copying the above-mentioned type product of Germany basically, has the similar technology problem.Therefore, according to domestic chemical-fibres filaments production development, test in the urgent need to a kind of chemical-fibres filaments dimensional stability to heating in house that is exclusively used in, change above-mentioned instrument dynamometry mode, the instrument volume is little, the chemical-fibres filaments percent thermal shrinkage tester that measuring accuracy is high, the fundamental purpose of this patent research and development that Here it is.
Summary of the invention
The object of the present invention is to provide a kind of proving installation and method of testing thereof of chemical-fibres filaments percent thermal shrinkage, mainly solve the existing defective of above-mentioned prior art, adopt this method of testing and proving installation significantly and improved the measuring accuracy of chemical-fibres filaments sample percent thermal shrinkage, the dynamometer system calibration calibration is convenient, structure is more reliable, and failure rate greatly reduces; But also help reducing of device volume.
For achieving the above object, technical scheme of the present invention is:
A kind of proving installation of chemical-fibres filaments percent thermal shrinkage is characterized in that: it comprises two limiter structures and force cell; Described pair of limiter structure comprises hook, lower draw-bar, upper hook dish, upper limiter, lower draw-bar dish, lower limiter, wire guide; Should be connected to hook dish below by upper hook connecting, the hook dish is positioned at above the limiter and is limited and can only slides along wire guide above upper limiter this on; This lower draw-bar is connected in lower draw-bar dish top, and this lower draw-bar dish is positioned at lower limiter below and is limited and can only slides along wire guide below lower limiter; The toggle mechanism silk fork that described force cell is installed can hold up the hook dish and move up to realize that the hank knotting sample to being hooked between upper hook, the lower draw-bar loads load.
The proving installation of described chemical-fibres filaments percent thermal shrinkage, it is characterized in that: described force cell is connected to dynamometry frame one end that is driven lifting by screw mandrel, this dynamometry frame other end connects roller by connecting rod, this roller slides in skewed slot guide rail guiding, this skewed slot guide rail makes toggle mechanism silk fork protruding after rising to the precalculated position, and injects gradually between the space of upper hook dish and hank knotting sample.
The proving installation of described chemical-fibres filaments percent thermal shrinkage is characterized in that: described screw mandrel is driven by stepper motor, gear and synchromesh gear belt.
The proving installation of described chemical-fibres filaments percent thermal shrinkage is characterized in that: the described pair of limiter structure is circle distribution and arranges a plurality ofly around a sample cylinder, and all be positioned on the cylinder pallet; This cylinder pallet below has steady arm and locates at test position to control each pair limiter structure.
The proving installation of described chemical-fibres filaments percent thermal shrinkage is characterized in that: the girth of described hank knotting sample is 500mm, and length is 250mm after hanging.
The proving installation of described chemical-fibres filaments percent thermal shrinkage is characterized in that: described stepper motor is connected with force cell and is connected computing machine, and computing machine also further connects input-output device.
A kind of method of testing of chemical-fibres filaments percent thermal shrinkage realizes that by aforesaid proving installation it is characterized in that: it comprises the steps:
A, open the power supply of heat shrinkage testing device for chemical fabrics filament and computing machine, preheating half an hour;
B, begin test before, be 500mm with girth, length is that the hank knotting sample of 250mm is hung between the upper hook and lower draw-bar of sample cylinder frame after hanging, upper hook dish is shelved on the limiter, the hank knotting sample is sagging stretching owing to being subjected to the weight effect of lower draw-bar dish;
C, one week of sample cylinder total N (N is more than or equal to 1) can supply the hook housing of hook hank knotting sample, the sample cylinder is placed on the cylinder pallet, after hanging up properly the hank knotting sample that needs test, press the navigation button on the instrument panel, sample cylinder pallet drives and automatically stops after the sample cylinder turns to first hank knotting sample testing position;
D, press the start button on the instrument panel, computing machine sends the pulse signal Driving Stepping Motor and rotates, pass through gear, synchromesh gear belt, gear, screw mandrel drives the dynamometry frame to begin to rise from instrument lower limit original position, roller is because the guiding function of skewed slot guide rail, make in the silk fork slave that links to each other with force cell protruding by connecting rod, inject gradually between the space of upper hook dish and hank knotting sample, when silk fork is moved upward to after upper hook tray bottom contacts, begin to hold up the hook dish, by moving on wire guide and wire guide guiding drive hank knotting sample and the lower draw-bar dish, wire guide and wire guide are packed in respectively on the upper and lower side frame of sample cylinder, are stopped by lower limiter when contacting with lower limiter and stop mobile when moving on the lower draw-bar dish;
After E, lower draw-bar are hindered stop motion, upper hook dish continues to be driven and moves, the hank knotting sample elongates inner tensions and increases gradually, in order not make the tension force sudden change, the uphill process automatic retarding, when hank knotting sample tension force increased to pre-set criteria tension force, instrument recorded specimen length automatically by the umber of pulse that computing machine sends Driving Stepping Motor, i.e. the length of hank knotting sample under standard tension force;
The dynamometry frame homing that automatically descends after F, test hank knotting specimen length are finished, the silk fork bounces back to again in the machine by the guiding function of skewed slot guide rail, the sample cylinder turns an angle after testing a hank knotting sample, and instrument begins next hank knotting sample is carried out length testing again;
G, the hank knotting specimen length of surveying before heat treated, be length before the heating, after the heat treated for length after the heating, by both test result calculations chemical-fibres filaments percent thermal shrinkages.
Compared with prior art advantage of the present invention is as follows:
1, two limiter structures of original creation design in apparatus of the present invention.Upper limiter is used for shelving the hook dish, makes the hank knotting sample be subjected to the weight effect of lower draw-bar dish before test and naturally droops the original state of stretching.The hank knotting sample rises at present, and limiter is used for stopping the lower draw-bar dish, force cell is subject to the downward direction load when making stretching hank knotting sample, the power value that has solved external instrument dynamometric system is demarcated the problem that exists, and makes test structure more reasonable, and measurement result is more accurate.
2, apparatus of the present invention test long filament hot water shrinkage is separated with test crimped filament rate and is not incorporated on the instrument, is designed to the long filament heat shrinkage testing tool of single project survey.Dynamometry load range reduces, and force measurement resolution and precision improve, and are conducive to improve the accuracy of test result.
3, use apparatus of the present invention, 1 meter of chemical-fibres filaments hank knotting sample girth changes 500mm into, and length changed 250mm into by 500mm after hank knotting hung, and had dwindled the instrument volume and weight, baking oven and heating water tank volume during the heating of sample cylinder reduce, and operation is used convenient.
Description of drawings
Fig. 1 is two limiter structure schematic diagram of apparatus of the present invention.
Among Fig. 1,1-sample, 2-upper hook, 3-lower draw-bar, 4-upper hook dishes, 5-upper limiters, 6-lower draw-bar dish, 7-lower limiter, 8,9-wire guide.
Fig. 2 is the proving installation schematic diagram of chemical-fibres filaments percent thermal shrinkage of the present invention.
Among Fig. 2,1-sample, 2-upper hook, 3-lower draw-bar, 4-upper hook dish, 5-upper limiter, 6-lower draw-bar dish, 7-lower limiter, 8,9-wire guide, 10-dynamometry frame, 11-force cell, 12-silk fork, 13-connecting rod, 14-roller, 15-skewed slot guide rail, 16-screw mandrel, 17-gear, 18-synchromesh gear belt, 19-gear, 20-stepper motor, 21-display, 22-computing machine, 23-printer.
Fig. 3 is the casing schematic perspective view.
Among Fig. 3,24-casing, 25-sample cylinder, 241-steady arm, 242-rising button, 243-decline button, 244-power switch, 245-start button, 246-stop button, 247-navigation button, 248-potentiometer, 249-cylinder pallet.
Embodiment
See also Fig. 1-3, the invention discloses a kind of proving installation of chemical-fibres filaments percent thermal shrinkage.As shown in Figure 1, main innovate point of the present invention is: it comprises two limiter structures and force cell 11; Described pair of limiter structure comprises hook 2, lower draw-bar 3, upper hook dish 4, upper limiter 5, lower draw-bar dish 6, lower limiter 7, wire guide 8,9; Upward hook 2 is connected in hook and coils 4 belows, and hook dish 4 is positioned at limiter 5 tops and is limited and can only slide along wire guide above upper limiter 5 on this; This lower draw-bar 3 is connected in lower draw-bar dish 6 tops, and this lower draw-bar dish 6 is positioned at lower limiter 7 belows and is limited and can only slide along wire guide below lower limiter 7; The toggle mechanism silk fork 12 that described force cell 11 is installed can hold up hook dish 4 and move up to realize that the hank knotting sample 1 to being hooked between upper hook 2, the lower draw-bar 3 loads load.
By above-mentioned pair of limiter structure, upper limiter is used for shelving the hook dish, makes the hank knotting sample be subjected to the weight effect of lower draw-bar dish before test and naturally droops the original state of stretching; When force cell and toggle mechanism silk fork drove the rising of hank knotting sample, lower limiter was for stopping the lower draw-bar dish, and sensor is subject to the load of downward direction when making stretching hank knotting sample, and it has solved external instrument dynamometric system power value and has demarcated the problem that exists.
In order to realize test, apparatus of the present invention also are furnished with following structure:
Described force cell 11 is connected to dynamometry frame 10 1 ends that driven lifting by screw mandrel 16, these dynamometry frame 10 other ends connect roller 14 by connecting rod 13, this roller 14 slides in skewed slot guide rail 15 guiding, this skewed slot guide rail 15 makes toggle mechanism silk fork 12 protruding after rising to the precalculated position, and injects gradually between the space of upper hook dish 4 and hank knotting sample 1.
Described screw mandrel 16 by stepper motor 20, gear 17,19 and synchromesh gear belt 18 drive.
Described pair of limiter structure is circle distribution a plurality of (such as 20) is set around a sample cylinder 25, and all is positioned on the cylinder pallet 249; These cylinder pallet 249 belows have steady arm 241 and locate at test position to control each pair limiter structure.
The proving installation of described chemical-fibres filaments percent thermal shrinkage is characterized in that: the girth of described hank knotting sample 1 is 500mm, and length is 250mm after hanging.
Described stepper motor 20 is connected with force cell and is all connected computing machine 22, and computing machine 22 also further connects input-output device.
A kind of method of testing of chemical-fibres filaments percent thermal shrinkage realizes that by aforesaid proving installation it comprises the steps:
A, open the power supply of heat shrinkage testing device for chemical fabrics filament and computing machine, preheating half an hour;
B, begin the test before, be 500mm with girth, the hank knotting sample 1 that the rear length of suspension is 250mm is hung between the upper hook 2 and lower draw-bar 3 of sample cylinder frame, and upper hook dish 4 is shelved on the limiter 5, and hank knotting sample 1 is sagging stretching owing to the weight effect that is subjected to lower draw-bar dish 6;
C, total N of 25 1 weeks of sample cylinder are individual, and (N is more than or equal to 1, such as 20) can be for the hook housing of hook hank knotting sample, sample cylinder 25 is placed on the cylinder pallet 249, after hanging up properly the hank knotting sample that needs test, press the navigation button 247 on the instrument panel, sample cylinder pallet 249 drives and automatically stops after sample cylinder 25 turns to first hank knotting sample testing position;
D, press the start button 245 on the instrument panel, computing machine 22 sends pulse signal Driving Stepping Motor 20 and rotates, by gear 19, synchromesh gear belt 18, gear 17, screw mandrel 16 drives dynamometry frame 10 to begin to rise from instrument lower limit original position, roller 14 is because the guiding function of skewed slot guide rail 15, make in silk fork 12 slaves that link to each other with force cell 11 protruding by connecting rod 13, inject gradually between the space of upper hook dish 4 and hank knotting sample 1, when being moved upward to upper hook, silk fork 12 coils 4 bottom connections after touch, begin to hold up hook dish 4, by moving on wire guide 8 and wire guide 9 guiding drive hank knotting samples 1 and the lower draw-bar dish 6, wire guide 8 and wire guide 9 are packed in respectively on the upper and lower side frame of sample cylinder 25, are stopped by lower limiter 7 when contacting with lower limiter 7 and stop mobile when moving on the lower draw-bar dish 6;
After E, lower draw-bar 3 are hindered stop motion, upper hook dish 4 continues to be driven and moves, the hank knotting sample elongates inner tensions and increases gradually, in order not make the tension force sudden change, the uphill process automatic retarding, when hank knotting sample tension force increased to pre-set criteria tension force, instrument recorded specimen length automatically by the umber of pulse that computing machine sends Driving Stepping Motor, i.e. the length of hank knotting sample under standard tension force;
Dynamometry frame 10 automatic decline homings after F, test hank knotting specimen length are finished, silk fork 12 guiding function by skewed slot guide rail 15 bounce back to again in the machine, the sample cylinder turns an angle after testing a hank knotting sample, and instrument begins next hank knotting sample is carried out length testing again;
G, the hank knotting specimen length of surveying before heat treated, be length before the heating, be length after the heating after the heat treated, calculate the chemical-fibres filaments percent thermal shrinkage by both differences.
In the inventive method implementation process, according to computing machine umber of pulse and step motor control technology accurately measure before the heating of chemical-fibres filaments sample with heating after length variations, length resolution is 0.01mm, significantly and improved the measuring accuracy of chemical-fibres filaments sample percent thermal shrinkage, reliable in structure, failure rate greatly reduces.Adopt the dynamometry frame to measure the suffered tension force of hank knotting, can accurately measure the pre-set criteria tension value, resolution is 0.1cN, reduce because of the pre-tension error on the heating of long filament sample before with heating after linear measure longimetry result's impact.Length was changed into 250mm by the 500mm of external instrument after the hank knotting sample hung, and the instrument volume and weight greatly alleviates, and can measure 20 samples at every turn, improved the confidence level of test result.
Being preferred embodiment of the present invention only in sum, is not to limit practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (7)
1. the proving installation of a chemical-fibres filaments percent thermal shrinkage is characterized in that: it comprises two limiter structures and force cell (11); Described pair of limiter structure comprises hook (2), lower draw-bar (3), upper hook dish (4), upper limiter (5), lower draw-bar dish (6), lower limiter (7), wire guide (8,9); Should be connected in hook dish (4) below by upper hook (2), hook dish (4) is positioned at limiter (5) top and is limited and can only slide along wire guide in upper limiter (5) top on this; This lower draw-bar (3) is connected in lower draw-bar dish (6) top, and this lower draw-bar dish (6) is positioned at lower limiter (7) below and is limited and can only slide along wire guide in lower limiter (7) below; The toggle mechanism silk fork (12) of described force cell (11) being installed and being linked to each other can hold up hook dish (4) and move up to realize that the hank knotting sample (1) to being hooked between upper hook (2), the lower draw-bar (3) loads load.
2. the proving installation of chemical-fibres filaments percent thermal shrinkage according to claim 1, it is characterized in that: described force cell (11) is connected to dynamometry frame (10) one ends that driven lifting by screw mandrel (16), this dynamometry frame (10) other end connects roller (14) by connecting rod (13), this roller (14) slides in skewed slot guide rail (15) guiding, this skewed slot guide rail (15) makes toggle mechanism silk fork (12) protruding after rising to the precalculated position, and injects gradually between the space of upper hook dish (4) and hank knotting sample (1).
3. the proving installation of chemical-fibres filaments percent thermal shrinkage according to claim 2 is characterized in that: described screw mandrel (16) is driven by stepper motor (20), gear (17,19) and synchromesh gear belt (18).
4. according to claim 1 and 2 or the proving installation of 3 described chemical-fibres filaments percent thermal shrinkages, it is characterized in that: the described pair of limiter structure is circle distribution on every side at a sample cylinder (25) and arranges a plurality ofly, and all is positioned on the cylinder pallet (249); This cylinder pallet (249) below has steady arm (241) and locates at test position to control each pair limiter structure.
5. according to claim 1 and 2 or the proving installation of 3 described chemical-fibres filaments percent thermal shrinkages, it is characterized in that: the girth of described hank knotting sample (1) is 500mm, and length is 250mm after hanging.
6. the proving installation of chemical-fibres filaments percent thermal shrinkage according to claim 3, it is characterized in that: described stepper motor (20) is connected 11 with force cell) all connecting computing machine (22), computing machine (22) also further connects input-output device.
7. the method for testing of a chemical-fibres filaments percent thermal shrinkage, by realizing such as claim 1 or 2 or 3 or 4 or 5 or 6 described proving installations, it is characterized in that: it comprises the steps:
A, open the power supply of heat shrinkage testing device for chemical fabrics filament and computing machine, preheating half an hour;
B, begin the test before, be 500mm with girth, the hank knotting sample (1) that the rear length of suspension is 250mm is hung between the upper hook (2) and lower draw-bar (3) of sample cylinder frame, upper hook dish (4) is shelved on the limiter (5), and hank knotting sample (1) is sagging stretching owing to the weight effect that is subjected to lower draw-bar dish (6);
C, (25) one weeks of sample cylinder total N (N is more than or equal to 1) can supply the hook housing of hook hank knotting sample, sample cylinder (25) is placed on the cylinder pallet (249), after hanging up properly the hank knotting sample that needs test, press the navigation button (247) on the instrument panel, sample cylinder pallet (249) drives and automatically stops after sample cylinder (25) turns to first hank knotting sample testing position;
D, press the start button (245) on the instrument panel, computing machine (22) sends pulse signal Driving Stepping Motor (20) and rotates, by gear (19), synchromesh gear belt (18), gear (17), screw mandrel (16) drives dynamometry frame (10) to begin to rise from instrument lower limit original position, roller (14) is because the guiding function of skewed slot guide rail (15), make in silk fork (12) slave that links to each other with force cell (11) protruding by connecting rod (13), inject gradually between the space of upper hook dish (4) and hank knotting sample (1), when silk fork (12) be moved upward to upper hook dish (4) bottom connection after touch, begin to hold up hook dish (4), by moving on wire guide (8) and wire guide (9) guiding drive hank knotting sample (1) and the lower draw-bar dish (6), wire guide (8) and wire guide (9) are packed in respectively on the upper and lower side frame of sample cylinder (25), move to be stopped by lower limiter (7) when contacting with lower limiter (7) and stop mobile on lower draw-bar dish (6);
After E, lower draw-bar (3) are hindered stop motion, upper hook dish (4) continues to be driven and moves, the hank knotting sample elongates inner tensions and increases gradually, in order not make the tension force sudden change, the uphill process automatic retarding, when hank knotting sample tension force increased to pre-set criteria tension force, instrument recorded specimen length automatically by the umber of pulse that computing machine sends Driving Stepping Motor, i.e. the length of hank knotting sample under standard tension force;
Dynamometry frame (10) homing that automatically descends after F, test hank knotting specimen length are finished, silk fork (12) bounces back to again in the machine by the guiding function of skewed slot guide rail (15), the sample cylinder turns an angle after testing a hank knotting sample, and instrument begins next hank knotting sample is carried out length testing again;
G, the hank knotting specimen length of surveying before heat treated, be length before the heating, be length after the heating after the heat treated, calculate the chemical-fibres filaments percent thermal shrinkage by both differences.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103983658A (en) * | 2014-05-21 | 2014-08-13 | 航天材料及工艺研究所 | Fiber medium-temperature longitudinal coefficient-of-linear-expansion testing device |
| CN104849304A (en) * | 2015-06-01 | 2015-08-19 | 安徽禄讯电子科技有限公司 | Test device and test method for thermal shrinkage ratio of chemical fiber filaments |
| CN104849305A (en) * | 2015-06-12 | 2015-08-19 | 合肥市徽腾网络科技有限公司 | Test device and test method for thermal shrinkage ratio of chemical fiber filaments |
| CN104914128A (en) * | 2015-07-08 | 2015-09-16 | 安徽瑞宏信息科技有限公司 | Device for testing chemical fiber filament heat shrinkage rate and testing method thereof |
| CN105067659A (en) * | 2015-07-23 | 2015-11-18 | 合肥扬帆通信元器件有限公司 | Test apparatus and test method for chemical fiber filament thermal shrinkage |
| CN106872649A (en) * | 2017-02-28 | 2017-06-20 | 济南兰光机电技术有限公司 | It is a kind of to detect the small device for shrinking force value sample shrinkage factor |
| CN109654944A (en) * | 2019-02-01 | 2019-04-19 | 贵州精工利鹏科技有限公司 | A kind of universal card ereisma testboard |
| CN112305015A (en) * | 2020-12-22 | 2021-02-02 | 南京狼旗网络传媒有限公司 | Fiber crimp shrinkage testing device |
| CN112505089A (en) * | 2020-11-02 | 2021-03-16 | 通鼎互联信息股份有限公司 | Yarn thermal shrinkage testing device and testing method |
| CN117782809A (en) * | 2023-12-21 | 2024-03-29 | 盐城市天雄特种纱线有限公司 | Synthetic fiber shrinkage testing device |
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| CN103983658A (en) * | 2014-05-21 | 2014-08-13 | 航天材料及工艺研究所 | Fiber medium-temperature longitudinal coefficient-of-linear-expansion testing device |
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| CN104849305A (en) * | 2015-06-12 | 2015-08-19 | 合肥市徽腾网络科技有限公司 | Test device and test method for thermal shrinkage ratio of chemical fiber filaments |
| CN104914128A (en) * | 2015-07-08 | 2015-09-16 | 安徽瑞宏信息科技有限公司 | Device for testing chemical fiber filament heat shrinkage rate and testing method thereof |
| CN105067659A (en) * | 2015-07-23 | 2015-11-18 | 合肥扬帆通信元器件有限公司 | Test apparatus and test method for chemical fiber filament thermal shrinkage |
| CN106872649A (en) * | 2017-02-28 | 2017-06-20 | 济南兰光机电技术有限公司 | It is a kind of to detect the small device for shrinking force value sample shrinkage factor |
| CN109654944A (en) * | 2019-02-01 | 2019-04-19 | 贵州精工利鹏科技有限公司 | A kind of universal card ereisma testboard |
| CN112505089A (en) * | 2020-11-02 | 2021-03-16 | 通鼎互联信息股份有限公司 | Yarn thermal shrinkage testing device and testing method |
| CN112505089B (en) * | 2020-11-02 | 2024-05-10 | 通鼎互联信息股份有限公司 | Yarn thermal shrinkage rate testing device and testing method |
| CN112305015A (en) * | 2020-12-22 | 2021-02-02 | 南京狼旗网络传媒有限公司 | Fiber crimp shrinkage testing device |
| CN117782809A (en) * | 2023-12-21 | 2024-03-29 | 盐城市天雄特种纱线有限公司 | Synthetic fiber shrinkage testing device |
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| CN103018273B (en) | 2014-12-17 |
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