CN109507397A - A kind of thread-tension intensity, elongation detection method - Google Patents
A kind of thread-tension intensity, elongation detection method Download PDFInfo
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- CN109507397A CN109507397A CN201811396973.6A CN201811396973A CN109507397A CN 109507397 A CN109507397 A CN 109507397A CN 201811396973 A CN201811396973 A CN 201811396973A CN 109507397 A CN109507397 A CN 109507397A
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 65
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims description 26
- 239000002344 surface layer Substances 0.000 claims description 11
- 241000209094 Oryza Species 0.000 claims description 9
- 235000007164 Oryza sativa Nutrition 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 235000009566 rice Nutrition 0.000 claims description 9
- 238000009987 spinning Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000013102 re-test Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims description 2
- 238000012800 visualization Methods 0.000 claims description 2
- 229910017435 S2 In Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000704 physical effect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/36—Textiles
- G01N33/365—Filiform textiles, e.g. yarns
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
A kind of thread-tension intensity of the present invention, elongation detection method, comprising the following steps: test sample fiber number simultaneously records statistics；The tensile property of test sample simultaneously records statistics；The tensile property of test sample moisture state simultaneously records statistics；Regain calculating is carried out with the data of sample drying front and back and records statistics；It calculates standard deviation on computers and average value, standard deviation obtains the fiber number coefficient of variation divided by average value and record；The data of record carry out comprehensive list record, draw out the performance histogram and performance chart of long filament, can detect to a variety of physical properties of filament samples, and testing result is comprehensive, and data are accurate, are conducive to monitoring product quality indicator, improving production efficiency.
Description
Technical field
The present invention relates to the technical field of yarn detection, especially a kind of thread-tension intensity, elongation detection method.
Background technique
With the increase of domestic textile fabric silk production capacity and the expansion of market user's usage amount, in order to negative to user
Duty, meets requirement of the client to product quality, needs to carry out detection adjustment to the performance of fiber filament.Currently, domestic without being somebody's turn to do
The unified standard and detection method of project, enterprise product detection means is not professional, is detected just for single performance, causes to examine
Survey that result is not comprehensive or even detection data mistake so that product quality indicator it is difficult to ensure that, directly affect production.In order to solve
The above problem is badly in need of a method for comprehensive detection to fiber filament physical property.
Summary of the invention
In order to solve the above-mentioned technical problem, the purpose of the present invention is to provide one kind, can to integrate accurate detection long filament multinomial
Thread-tension intensity, the elongation detection method of performance.
To achieve the goals above, the technical scheme adopted by the invention is as follows: the following steps are included:
Step S1: the plurality of threads for selecting spinning workshop just to fall is as sample；
Step S2: test sample fiber number simultaneously records statistics；
Sample after step S3: selecting step S2 test；
Step S4: the tensile property of test sample simultaneously records statistics；
The tens of rice of surface layer long filament are removed in sample after step S5: selecting step S2 test, drawing, intercept a root long degree 60cm or more
Sample, clamp sample both ends and integrally fixed sample with fixing piece；
Step S6: the sample taken is immersed in the distilled water or deionized water that temperature is 15~25 DEG C, using ultrasound
Wave concussion 2~5min of dipping, is then allowed to stand 1~5min taking-up；
Step S7: sample both ends are clamped respectively with upper end clamper and lower end clamper and are fixed, fixing piece is removed；
Step S8: the tensile property of test sample moisture state simultaneously records statistics；
Step S9: baking oven opening is preheated in advance, sets oven temperature as 100~110 DEG C；
Step S10: choosing the weighing beaker that electronic balance is preset in multiple bottoms, and electronic balance counts zero, weighing
Beaker carries out label distinction record, and sample is put into label area according to record sequence by multiple samples after selecting step S2 test
Weighing record is carried out in the weighing beaker divided；
Step S11: weighing beaker is put into the preheated baking oven of step S9 and carries out visualization standing drying, starts baking oven
Interior dehumidifying device；
Step S12: waiting 1.5~2.5h, until the electronic balance for weighing beaker counts invariable, record electronic balance
Weighing data, it is cooling simultaneously to take out weighing beaker；
Step S13: regain calculating is carried out with the data of sample drying front and back and records statistics；
Step S14: select the plurality of threads fallen in two hours of spinning workshop as sample；
Step S15: using the sample of yarn thread gauging machine interception equal length；
Step S16: being put into electronic balance for the sample of interception and weighed and recorded, every group of sample of retest, calculates
The average value of every group of data；
Step S17: calculating standard deviation and average value, standard deviation obtain the fiber number coefficient of variation divided by average value and remember
Record；
Step S18: the data of step S2, step S4, step S8, step S13 and step S17 record are subjected to comprehensive list
Record, draws out the performance histogram and performance chart of long filament.
By using above-mentioned technical proposal, under prescribed test conditions, the fiber number numerical value of known length sample is measured,
The various tensile property measured values of sample are tested out on electronics strength machine, to obtain sample more fully tensile property number
Value, similarly, the draftability under sample wetness conditions can be tested out in the case where sample is sufficiently soaked by electronics strength machine
Can numerical value, after samples weighing, be placed in the drying in oven moisture of predetermined temperature to constant weight, calculate the moisture of sample and the difference of dry measure
The resulting percentage of the ratio between several and dry weight, obtains the resurgence rate score of sample, chooses the sample of certain period of time, be repeatedly measured
The quality for knowing length sample by using computer statistics result and calculates, to obtain the fiber number coefficient of variation CV number of sample
Value finally becomes the fiber number numerical value of sample, tensile property numerical value, the tensile property numerical value of moisture state, resurgence rate score, fiber number
Different coefficient CV numerical value carries out synthesis and draws out intuitive performance histogram and performance chart, it may be convenient to observe sample
Properties, test result is more comprehensively.
Preferably, in the step S1, the sample of three groups of difference line density specifications is chosen, every group of sample is not less than 5, institute
Select sample surfaces it is smooth it is glossy, without lousiness, it is comprehensive without fault, the covering of code length range.
By using above-mentioned technical proposal, the test number accuracy of sample after sampling can be effectively promoted.
Preferably, in the step S2, the silk head of sample is pulled out, the tens of rice in surface layer are removed in drawing, setting yarn thread gauging machine
Windings are 100 circles, carry out pre-wound calibration and reset, silk head is by adding tensioner to be wrapped in thread yarn yarn thread gauging machine
On intermediate plate, start to wind sample length, after yarn thread gauging machine stops completely, cut at headtotail, remove sample, will cut
The sample taken is put into electronic balance and weighs, and carries out fiber number calculating with the length of sample and weight data and records, and sample needs
It carries out test of many times and carries out record statistics after testing be fully completed for several times.
By using above-mentioned technical proposal, it is ensured that it is accurate to promote follow-up test for the stable and consistent of sample length
Property, under prescribed test conditions, the quality of known length sample is measured, calculate line density, to obtain the fiber number number of sample
Value.
Preferably, in the step S4, electronics strength machine is opened, single thread force test is selected, is tested, be respectively set
Pulling rate returns the required data that speed, gauge, line density, test number (TN), dynamometry range are tested, and click is actuated for gauge setting, draws
The tens of rice of surface layer long filament are removed, upper end clamper clamps long filament upper end, and long filament is straightened and is twisted, and tenses long filament, is clamped with lower end
Device is fixedly clamped, and is tested and is recorded, and the pre-tension tested several times in the process should be consistent, and sample need to carry out more
Secondary test carries out record statistics after testing be fully completed for several times；The operating method of the step S8 is identical as step S4.
By using above-mentioned technical proposal, the tensile property of sample accurately can be comprehensively determined, in electronics strength machine
Fiber constant speed is pulled to fracture, from strength-extension curve or data show or data collection system in obtain sample fracture it is strong
The measured value of the tensile properties such as power, extension at break, elongation at specified load, load at certain elongation, initial modulus and work to break, to obtain
The tensile property numerical value of sample, similarly, it is wet in the case where sample is sufficiently soaked can to test out sample by electronics strength machine
Tensile property numerical value in the case of profit.
Preferably, used equipment includes thread yarn yarn thread gauging machine, electronics strength machine, baking oven, electronic balance and several
Weigh beaker.
By using above-mentioned technical proposal, it may be convenient to carry out test operation to sample.
Preferably, the step S3, step S5 and step S10 are tested using the sample after step S2 test, and are pressed
Corresponding sequence test record is carried out according to the test data of step S2 record.
By using above-mentioned technical proposal, it is not opposite with sample can to occur deviation or test result to avoid test data
It answers.
Preferably, in the step S14, the sample of a variety of line density specifications is chosen, the sample size of every kind of specification is not low
In in 15, selected sample surfaces are smooth, good without lousiness, molding.
By using above-mentioned technical proposal, the test number accuracy of sample after sampling can be effectively promoted.
Preferably, in the step S18, standard deviation is calculated separately with function STDEVP and AVERAGE on computers
And average value.
By using above-mentioned technical proposal, it can be and quickly and accurately calculate standard deviation and average value.
Compared with the prior art, the advantages of the present invention are as follows: a variety of physical properties of filament samples can be detected,
Testing result is comprehensive, and data are accurate, is conducive to monitoring product quality indicator, improving production efficiency.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
Embodiment one
A kind of thread-tension intensity, elongation detection method, comprising the following steps:
Step S1: the plurality of threads for selecting spinning workshop just to fall chooses three groups of difference line density rule as sample
The sample of lattice, every group of sample are 5, selected sample surfaces it is smooth it is glossy, without lousiness, it is comprehensive without fault, the covering of code length range；
Step S2: the silk head of sample is pulled out, and the tens of rice in surface layer are removed in drawing, and the windings of setting yarn thread gauging machine are 100
Circle carries out pre-wound calibration and resets, and silk head starts to roll up by adding tensioner to be wrapped on the intermediate plate of thread yarn yarn thread gauging machine
Around sample length, after yarn thread gauging machine stops completely, is cut at headtotail, remove sample, the sample of interception is put into
Electronic balance is weighed, and is carried out fiber number calculating with the length of sample and weight data and is recorded, and sample carries out test of many times, to
After test is fully completed for several times, record statistics is carried out；
Sample after step S3: selecting step S2 test；
Step S4: open electronics strength machine, select single thread force test, tested, be respectively set pulling rate, return speed, every
Away from, line density, test number (TN), dynamometry range test required data, click be actuated for gauge setting, drawing remove surface layer long filament number
Ten meters, upper end clamper clamps long filament upper end, and long filament is straightened and is twisted, and tenses long filament, is fixed with lower end clamp holder clamping, into
Row is tested and is recorded, and the pre-tension tested several times in the process should be consistent, and sample need to carry out test of many times, to for several times
After test is fully completed, record statistics is carried out；
The tens of rice of surface layer long filament are removed in sample after step S5: selecting step S2 test, drawing, intercept the sample of a root long degree 60cm
Product clamp sample both ends and are integrally fixed sample with fixing piece, prevent the script twist from losing；
Step S6: being immersed in the distilled water that temperature is 15 DEG C for the sample taken, impregnates 2min using ultrasonic oscillation, so
It stands 1min afterwards to take out, taking-up process pays attention to keeping the sample script twist；
Step S7: sample both ends are clamped respectively with upper end clamper and lower end clamper and are fixed, fixing piece is removed；
Step S8: open electronics strength machine, select single thread force test, tested, be respectively set pulling rate, return speed, every
Away from, line density, test number (TN), dynamometry range test required data, click be actuated for gauge setting, drawing remove surface layer long filament number
Ten meters, upper end clamper clamps long filament upper end, and long filament is straightened and is twisted, and tenses long filament, is fixed with lower end clamp holder clamping, into
Row is tested and is recorded, and the pre-tension tested several times in the process should be consistent, and sample need to carry out test of many times, to for several times
After test is fully completed, record statistics is carried out；
Step S9: baking oven opening is preheated in advance, sets oven temperature as 100 DEG C；
Step S10: choosing the weighing beaker that electronic balance is preset in multiple bottoms, and electronic balance counts zero, weighing
Beaker carries out label distinction record, and sample is put into label area according to record sequence by multiple samples after selecting step S2 test
Weighing record is carried out in the weighing beaker divided；
Step S11: weighing beaker is put into the preheated baking oven of step S9 and carries out standing drying, baking oven side is provided with
Transparent windows, it can be observed that the electronic balance for weighing beaker in baking oven counts, the dehumidifying device started in baking oven is made a return journey
Except the moisture vapor evaporated in baking oven；
Step S12: waiting 1.5h, until the electronic balance counting for weighing beaker is invariable, records the title of electronic balance
Tuple evidence, cooling simultaneously take out weighing beaker；
Step S13: regain calculating is carried out with the data of sample drying front and back and records statistics；
Step S14: it selects the plurality of threads fallen in two hours of spinning workshop as sample, it is close to choose a variety of lines
The sample of metric lattice, the sample size of every kind of specification are not less than 15, and selected sample surfaces are smooth, good without lousiness, molding.
Step S15: the silk head of sample is pulled out, and the tens of rice in surface layer are removed in drawing, and the windings of setting yarn thread gauging machine are 100
Circle carries out pre-wound calibration and resets, and silk head starts to roll up by adding tensioner to be wrapped on the intermediate plate of thread yarn yarn thread gauging machine
Around sample length, after yarn thread gauging machine stops completely, is cut at headtotail, remove sample；
Step S16: being put into electronic balance for the sample of interception and weighed and recorded, every group of sample of retest, calculates
The average value of every group of data；
Step S17: standard deviation and average value, standard are calculated separately with function STDEVP and AVERAGE on computers
Deviation obtains the fiber number coefficient of variation divided by average value and records；
Step S18: the data of step S2, step S4, step S8, step S13 and step S17 record are subjected to comprehensive list
Record, draws out the performance histogram and performance chart of long filament.
In the present embodiment, the step S3, step S5 and step S10 are surveyed using the sample after step S2 test
Examination, and carry out corresponding sequence test record according to the test data that step S2 is recorded, can occur to avoid test data deviation or
Test result is not correspond to sample.
Embodiment two
Different from, every group of sample size of step S1 are 8 to the present embodiment on the basis of example 1；Step S5
Intercept the sample of a root long degree 100cm；The sample taken is immersed in the deionized water that temperature is 20 DEG C by step S6, using super
Sound wave shock impregnates 3min, is then allowed to stand 3min taking-up, and taking-up process pays attention to keeping the sample script twist；Step S9 will dry in advance
Case opening is preheated, and sets oven temperature as 105 DEG C；Step S12 waits 2h, until the electronic balance for weighing beaker counts perseverance
It is fixed constant；Step S14 selects the plurality of threads fallen in two hours of spinning workshop as sample, chooses a variety of line densities
The sample of specification, the sample size of every kind of specification are 20.
Embodiment three
Different from, every group of sample size of step S1 are 10 to the present embodiment on the basis of example 1；Step
S5 intercepts the sample of a root long degree 120cm；The sample taken is immersed in the deionized water that temperature is 25 DEG C by step S6, is used
Ultrasonic oscillation impregnates 5min, is then allowed to stand 5min taking-up, and taking-up process pays attention to keeping the sample script twist；Step S9 in advance will
Baking oven opening is preheated, and sets oven temperature as 110 DEG C；Step S12 waits 2.5h, until weighing the electronic balance meter of beaker
Number is invariable；Step S14 selects the plurality of threads fallen in two hours of spinning workshop as sample, chooses a variety of lines
The sample of density specification, the sample size of every kind of specification are 30.
Although the preferred embodiment of the present invention has been described in detail above, it is to be clearly understood that for this field
Technical staff for, the invention may be variously modified and varied.Done within the spirit and principles of the present invention
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of thread-tension intensity, elongation detection method, it is characterised in that: the following steps are included:
Step S1: the plurality of threads for selecting spinning workshop just to fall is as sample；
Step S2: test sample fiber number simultaneously records statistics；
Sample after step S3: selecting step S2 test；
Step S4: the tensile property of test sample simultaneously records statistics；
The tens of rice of surface layer long filament are removed in sample after step S5: selecting step S2 test, drawing, intercept the sample of a root long degree 60cm or more
Product clamp sample both ends and are integrally fixed sample with fixing piece；
Step S6: the sample taken is immersed in the distilled water or deionized water that temperature is 15~25 DEG C, is shaken using ultrasonic wave
2~5min of dipping is swung, 1~5min taking-up is then allowed to stand；
Step S7: sample both ends are clamped respectively with upper end clamper and lower end clamper and are fixed, fixing piece is removed；
Step S8: the tensile property of test sample moisture state simultaneously records statistics；
Step S9: baking oven opening is preheated in advance, sets oven temperature as 100~110 DEG C；
Step S10: choosing the weighing beaker that electronic balance is preset in multiple bottoms, and electronic balance counts zero, weighing beaker
Label distinction record is carried out, sample is put into label distinction according to record sequence by multiple samples after selecting step S2 test
It weighs in beaker and carries out weighing record；
Step S11: weighing beaker is put into the preheated baking oven of step S9 and carries out visualization standing drying, is started in baking oven
Dehumidifying device；
Step S12: waiting 1.5~2.5h, until the electronic balance counting for weighing beaker is invariable, records the title of electronic balance
Tuple evidence, cooling simultaneously take out weighing beaker；
Step S13: regain calculating is carried out with the data of sample drying front and back and records statistics；
Step S14: select the plurality of threads fallen in two hours of spinning workshop as sample；
Step S15: using the sample of yarn thread gauging machine interception equal length；
Step S16: the sample of interception is put into electronic balance and is weighed and is recorded, every group of sample of retest calculates every group
The average value of data；
Step S17: calculating standard deviation and average value, standard deviation obtain the fiber number coefficient of variation divided by average value and record；
Step S18: the data of step S2, step S4, step S8, step S13 and step S17 record are subjected to comprehensive list note
Record, draws out the performance histogram and performance chart of long filament.
2. a kind of thread-tension intensity as described in claim 1, elongation detection method, it is characterised in that: the step S1
In, the sample of three groups of difference line density specifications is chosen, every group of sample is not less than 5, and selected sample surfaces are smooth glossy, hairless
Silk covers comprehensively without fault, code length range.
3. a kind of thread-tension intensity as described in claim 1, elongation detection method, it is characterised in that: the step S2
In, the silk head of sample is pulled out, the tens of rice in surface layer are removed in drawing, and the windings of setting yarn thread gauging machine are 100 circles, carry out pre-wound
It calibrates and resets, silk head passes through plus tensioner is wrapped on the intermediate plate of thread yarn yarn thread gauging machine, start to wind sample length,
After yarn thread gauging machine stops completely, is cut at headtotail, remove sample, the sample of interception is put into electronic balance and is claimed
Weight, carries out fiber number calculating with the length of sample and weight data and records, sample need to carry out test of many times, to test whole for several times
After the completion, record statistics is carried out.
4. a kind of thread-tension intensity as described in claim 1, elongation detection method, it is characterised in that: the step S4
In, electronics strength machine is opened, single thread force test is selected, is tested, pulling rate is respectively set, returns speed, gauge, line density, examination
The required data of number, the test of dynamometry range are tested, click is actuated for gauge setting, and the tens of rice of surface layer long filament, upper end folder are removed in drawing
Holder clamps long filament upper end, and long filament is straightened and is twisted, and tenses long filament, is fixed with lower end clamp holder clamping, tested and remembered
Record, the pre-tension tested several times in the process should be consistent, and sample need to carry out test of many times, all complete to test for several times
Cheng Hou carries out record statistics；The operating method of the step S8 is identical as step S4.
5. a kind of thread-tension intensity as described in claim 1, elongation detection method, it is characterised in that: used to set
Standby includes thread yarn yarn thread gauging machine, electronics strength machine, baking oven, electronic balance and several weighing beakers.
6. a kind of thread-tension intensity as described in claim 1, elongation detection method, it is characterised in that: the step S3,
Step S5 and step S10 is tested using the sample after step S2 test, and is carried out according to the test data of step S2 record
Corresponding sequence test record.
7. a kind of thread-tension intensity as described in claim 1, elongation detection method, it is characterised in that: the step S14
In, choose the sample of a variety of line density specifications, the sample size of every kind of specification is not less than in 15, selected sample surfaces are smooth,
No lousiness, molding are good.
8. a kind of thread-tension intensity as described in claim 1, elongation detection method, it is characterised in that: the step S18
In, standard deviation and average value are calculated separately with function STDEVP and AVERAGE on computers.
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