CN106289957A - In a kind of sealing strip single extraction force test clamping tooling and method of testing - Google Patents

In a kind of sealing strip single extraction force test clamping tooling and method of testing Download PDF

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Publication number
CN106289957A
CN106289957A CN201610603051.2A CN201610603051A CN106289957A CN 106289957 A CN106289957 A CN 106289957A CN 201610603051 A CN201610603051 A CN 201610603051A CN 106289957 A CN106289957 A CN 106289957A
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Prior art keywords
test
pinch roller
test sample
clamping
extraction force
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CN201610603051.2A
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CN106289957B (en
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纪荣华
韩杰
金涛
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Shanghai Rongnan Technology Co.,Ltd.
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Shanghai Rong Nan Plastics Technology Co Ltd
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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
    • G01N3/02—Details
    • G01N3/04—Chucks
    • 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
    • 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
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • 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
    • G01N2203/0298—Manufacturing or preparing specimens
    • 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
    • G01N2203/04—Chucks, fixtures, jaws, holders or anvils
    • G01N2203/0452—Cushioning layer between test piece and grip

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The present invention relates to the method for single extraction force test in sealing strip, including being installed on puller system by test sample and clamping；Preset value of thrust by 2N and test sample is carried out pretension；Parameter value before test is set；Carry out the test of interior single extraction force, the numerical value of single extraction force in record preservation sealing strip；Repeat the above steps one to step 4, completes the test of the interior single extraction force of other test sample, and records the numerical value preserving extraction force；Take the arithmetic mean of instantaneous value of all test data as experimental result.Present invention also offers the test sample specification of single extraction force in sealing strip and the clamping tooling to test sample.Its advantage shows: use the interior single that test bars is cut off by the way of punching batten, make it at frock clip position not by clamping force, when avoiding testing, single makes the carrying out of pairwise testing and the impact of test result because clamping, and improves stability and the credibility of test data.

Description

In a kind of sealing strip single extraction force test clamping tooling and method of testing
[technical field]
The present invention relates to sealing strip technical field, specifically, be the dress of single extraction force test in a kind of sealing strip Folder frock and method of testing.
[background technology]
Fiber refers to the material being made up of continuous or discrete filament.In animal and plant body, fiber is maintaining organizer Face plays an important role.Fiber applications is extensive, can be made into fine rule, the end of a thread and the rope made of hemp, papermaking or can also be made into fiber when knitting felt Layer；The most also it is commonly used to manufacture unclassified stores, and collectively constitutes composite with unclassified stores.Any fibrous material all should have There is certain strength, and the most such for single in sealing strip.Ethylene propylene diene rubber EPDM sealing strip and single Between the quality of bond properties directly affect the effect sealed, therefore for the bonding between EPDM sealing strip and single Performance carries out detecting just being particularly important.But this detection operation does not has clear and definite and detailed method, test error in the industry Bigger.
In sum, need badly in the sealing strip that one has clear stipulaties sample length, sample treatment, sample clamping and test The clamping tooling of single extraction force test and method of testing.But have not been reported about this type of technology at present.
[summary of the invention]
It is an object of the invention to for the deficiency of single extraction force measuring technology in existing sealing strip, it is provided that a kind of sealing The clamping tooling of single extraction force test in bar.
Another object of the present invention is to provide the test sample of single extraction force test in a kind of sealing strip.
Another object of the present invention is to provide the method for testing of single extraction force test in a kind of sealing strip.
For realizing above-mentioned first purpose, the present invention adopts the technical scheme that:
Described clamping tooling include clamp body, upper eccentric pinch roller, upper eccentric pinch roller bearing pin, upper eccentric pinch roller handle, Lower clamp body, lower eccentric pinch roller, lower eccentric pinch roller bearing pin, lower eccentric pinch roller handle and test sample.
Described upper clamp body is fixed on the upper shifting board of measurer for pulling force；Described upper eccentric pinch roller is by upper bias Pinch roller bearing pin is connected on clamp body, and can do eccentric rotary around upper eccentric pinch roller bearing pin；Described upper eccentric pinch roller handle Being arranged on eccentric pinch roller external cylindrical surface, by the rotation to upper eccentric pinch roller of the upper eccentric pinch roller handle, scalable is inserted in Loosening and clamping of test sample between upper clamp body and upper eccentric pinch roller, and the dynamics of clamping.
Described lower clamp body is fixed on the lower fixing end of measurer for pulling force；Described lower eccentric pinch roller is by lower eccentric pressure Wheel bearing pin is connected on lower clamp body, and can do eccentric rotary around lower eccentric pinch roller bearing pin；Described lower eccentric pinch roller handle peace Being contained on lower eccentric pinch roller external cylindrical surface, by the rotation to lower eccentric pinch roller of the lower eccentric pinch roller handle, scalable is inserted in down Loosening and clamping of test sample between clamp body and lower eccentric pinch roller, and the dynamics of clamping.
After the two ends of described test sample are clamped in advance by upper eccentric pinch roller and lower eccentric pinch roller respectively, test sample exists Under stretching stress, owing to the surface of upper eccentric pinch roller and lower eccentric pinch roller all has anti-slip veins to design, the two ends of test sample Pressed part, under the effect of frictional force, drives upper eccentric pinch roller and lower eccentric pinch roller to do the rotation of bias, test sample respectively Two ends automatically pressed tighter and tighter, pulling force is the biggest, and chucking power is the biggest.
For realizing above-mentioned second purpose, the present invention adopts the technical scheme that:
Described test sample is to intercept from finished product, and quantity is no less than 1；Finished product before sampling and between sulfuration time Between interval should be greater than 16 hours；Test sample after sampling before testing, should be at the ring that temperature is 23 ± 2 DEG C of humidity 50 ± 5% Under border, regulating time is more than 3H, and period parked by sample must not stress.
A length of 300 ± the 20mm of described test sample, including a length of 30mm of upper gripping section；Epimere single is effectively surveyed Examination segment length is 100mm, and uncovered fibres line segment length is 20 to 60mm；Hypomere single Validity Test segment length is 100mm；Under The a length of 30mm of gripping section；Described test sample also includes cutting off cut-out hole, described fibre under hole and single on single Cutting off on dimension line and cutting off the aperture in hole under hole and single is to select different size of perforating head according to product structure, beats with minimum Bore dia can be as the criterion by complete cut staple line.
A length of 350 ± the 10mm of described test sample, including a length of 30mm of upper gripping section；Epimere single is effectively surveyed Examination segment length is 125mm, and uncovered fibres line segment length is 30 to 50mm；Hypomere single Validity Test segment length is 125mm；Under The a length of 30mm of gripping section；Described test sample also includes cutting off cut-out hole, described fibre under hole and single on single Cutting off on dimension line and cutting off the aperture in hole under hole and single is to select different size of perforating head according to product structure, beats with minimum Bore dia can be as the criterion by complete cut staple line.
For realizing above-mentioned 3rd purpose, the present invention adopts the technical scheme that:
In described sealing strip, single extraction force method of testing comprises the steps:
Step one: test sample is installed on puller system, clamping tooling respectively to the upper gripping section of test sample and under Gripping section clamps；During clamping, retaining part keeps vertical, and avoids cutting off hole under hole and single to cutting off on single Clamping.
Step 2: preset value of thrust by 2N and test sample is carried out pretension, it is ensured that test sample is vertical.
Step 3: the parameter value before test is set, test speed is set as 50 ± 5mm/min, also includes fibre Dimension linear diameter, the length of effective fiber test section, ambient temperature, the input of humidity parameter.
Step 4: carry out the test of interior single extraction force, observes single and the change of test position in test process, and remembers The numerical value of single extraction force in record preservation sealing strip.
Step 5: repeat the above steps one to step 4, completes the test of the interior single extraction force of other test sample, And record and preserve the numerical value of single extraction force in sealing strip.
Step 6: take the arithmetic mean of instantaneous value of all test data as experimental result, the result of calculation revision of the convention a to decimal.
The invention has the advantages that:
1, there are clear stipulaties sample length, sample treatment, the method for sample test, and in sample, fiber uses Die structure Scheme, it is ensured that product is when clamping, and single is not affected by clamping, it is ensured that test the concordance of data and stability.
2, test sample is under stretching stress, owing to all there is anti-slip veins on the surface of upper eccentric pinch roller and lower eccentric pinch roller Design, the pressed part, two ends of test sample, under the effect of frictional force, drives upper eccentric pinch roller and lower eccentric pinch roller to do respectively Eccentric rotation, the two ends of test sample are pressed tighter and tighter automatically, and pulling force is the biggest, and chucking power is the biggest.
[accompanying drawing explanation]
Accompanying drawing 1 is clamping tooling and the clamping test mode schematic diagram of single extraction force test in a kind of sealing strip.
Accompanying drawing 2 is the test sample structural representation of single extraction force test in a kind of sealing strip.
[detailed description of the invention]
Below in conjunction with embodiment and referring to the drawings the invention will be further described.
The reference and the ingredient that relate in accompanying drawing are as follows:
1. go up eccentric pinch roller on clamp body 2.
3. go up eccentric pinch roller handle on eccentric pinch roller bearing pin 4.
5. 6. times eccentric pinch rollers of lower clamp body
7. 8. times eccentric pinch roller handles of time eccentric pinch roller bearing pin
9. test sample 91. single
Cut off on 92. singles and under the single of hole 93., cut off hole
Embodiment 1
Refer to clamping tooling that Fig. 1, Fig. 1 are single extraction force tests in a kind of sealing strip and clamping test mode is shown It is intended to.Described clamping tooling include clamp body 1, upper eccentric pinch roller 2, upper eccentric pinch roller bearing pin 3, upper eccentric pinch roller handle 4, Lower clamp body 5, lower eccentric pinch roller 6, lower eccentric pinch roller bearing pin 7, lower eccentric pinch roller handle 8 and test sample 9.
Described upper clamp body 1 is fixed on the upper shifting board of measurer for pulling force, described upper eccentric pinch roller 2 by upper partially Heart pinch roller bearing pin 3 is connected on clamp body 1, and can do eccentric rotary, described upper eccentric pinch roller around upper eccentric pinch roller bearing pin 3 Handle 4 is arranged on the external cylindrical surface of eccentric pinch roller 2, by the rotation to upper eccentric pinch roller 2 of the upper eccentric pinch roller handle 4, and can Regulation is inserted in loosening and clamping of the test sample 9 between clamp body 1 and upper eccentric pinch roller 2, and the dynamics of clamping.
Described lower clamp body 5 is fixed on the lower fixing end of measurer for pulling force, and described lower eccentric pinch roller 6 is by lower bias Pinch roller bearing pin 7 is connected on lower clamp body 5, and can do eccentric rotary, described lower eccentric pinch roller hands around lower eccentric pinch roller bearing pin 7 Handle 8 is arranged on the external cylindrical surface of lower eccentric pinch roller 6, by the rotation to lower eccentric pinch roller 6 of the lower eccentric pinch roller handle 8, adjustable Joint is inserted in loosening and clamping of the test sample 9 between lower clamp body 5 and lower eccentric pinch roller 6, and the dynamics of clamping.
Described measurer for pulling force is the product of standard, preferred as one, and the machine that uses controls electronic universal test Machine WDW-5C, and meet the related request of HG/T2369, its dynamometry precision is A level.
After the two ends of test sample 9 are clamped in advance by upper eccentric pinch roller 2 and lower eccentric pinch roller 6 respectively, draw described Under the effect of power test machine, test sample 9 does stretching stress as shown in Figure 1, due to upper eccentric pinch roller 2 and lower eccentric pressure The surface of wheel 6 all has anti-slip veins to design, and the pressed part, two ends of test sample 9, under the effect of frictional force, drives upper inclined respectively Heart pinch roller 2 and lower eccentric pinch roller 6 do the rotation of bias, and this eccentric rotary utilizing frictional force to produce is beneficial to test sample 9 Two ends are pressed tighter and tighter, serve clamping automatically and anti-loose effect.
Single extraction force test in described a kind of sealing strip, before testing, needs to carry out test sample 9 and prepares and adjust Joint.Described test sample 9 is to intercept from finished product, and preferred as one, a length of 300 ± 20mm of test sample 9, quantity is not Less than 1.The time interval between finished product and sulfuration before sampling should be greater than 16 hours.Test sample 9 after sampling is in test Before, at least 3H should be regulated in the environment of temperature is 23 ± 2 DEG C of humidity 50 ± 5%, period parked by sample must not stress.
Refer to Fig. 2, Fig. 2 is the test sample structural representation of single extraction force test in a kind of sealing strip.
Described test sample 9 includes L1、L2、L3、L4、L5, described L1For upper gripping section, a length of 30mm, L2For upper Section fibre line Validity Test section, a length of 100mm, L3For uncovered fibres line segment, a length of 20 to 60mm, L4For hypomere single Validity Test section, a length of 100mm, L5For lower gripping section, a length of 30mm.At L1And L2Between, there is cut-out hole on single 92, L4And L5Between have under single cut-out hole 93, described single cuts off the aperture cutting off hole 93 under hole 92 and single It is to select different size of perforating head according to product structure, can be as the criterion by complete cut staple line with minimum punching diameter.Described Naked section L3 is the complete naked section of single 91.
In described a kind of sealing strip, the method for single extraction force test, comprises the steps:
Step one: test sample 9 is installed on puller system, and clamping tooling as shown in Figure 1 is respectively to test sample 9 Upper gripping section L1 and lower gripping section L5 clamp.During clamping, retaining part keeps vertical, notes avoiding single simultaneously The clamping in hole 93 is cut off, in order to avoid test result is impacted under upper cut-out hole 92 and single.
Step 2: preset value of thrust by 2N and test sample 9 is carried out pretension, it is ensured that test sample 9 is vertical.
Step 3: the parameter value before test is set, test speed is set as 50 ± 5mm/min, also includes fibre Dimension linear diameter, the length of effective fiber test section, ambient temperature, the input of humidity parameter.
Step 4: carry out the test of interior single extraction force, observes single and the change of test position in test process, and remembers The numerical value of single extraction force in record preservation sealing strip.
Step 5: repeat the above steps one to step 4, completes the test of the interior single extraction force of other test sample, And record and preserve the numerical value of single extraction force in sealing strip.
Step 6: the arithmetic mean of instantaneous value taking all test data is repaiied according to GB/T8170 as experimental result, result of calculation About to a decimal.
Embodiment 2
The present embodiment provides the physical dimension of another set test sample again.
Single extraction force test in described a kind of sealing strip, before testing, needs to carry out test sample 9 and prepares and adjust Joint.Described test sample 9 is to intercept from finished product, and preferred as one, a length of 350 ± 10mm of test sample 9, quantity is not Less than 1.The time interval between finished product and sulfuration before sampling should be greater than 16 hours.Test sample 9 after sampling is in test Before, at least 3H should be regulated in the environment of temperature is 23 ± 2 DEG C of humidity 50 ± 5%, period parked by sample must not stress.
Refer to Fig. 2, Fig. 2 is the test sample structural representation of single extraction force test in a kind of sealing strip.
Described test sample 9 includes L1、L2、L3、L4、L5, described L1For upper gripping section, a length of 30mm, L2For upper Section fibre line Validity Test section, a length of 125mm, L3For uncovered fibres line segment, a length of 30 to 50mm, L4For hypomere single Validity Test section, a length of 125mm, L5For lower gripping section, a length of 30mm.At L1And L2Between, there is cut-out hole on single 92, L4And L5Between have under single cut-out hole 93, described single cuts off the aperture cutting off hole 93 under hole 92 and single It is to select different size of perforating head according to product structure, can be as the criterion by complete cut staple line with minimum punching diameter.Described Naked section L3 is the complete naked section of single 91.
Version and dress in the present embodiment, to the clamping tooling that the extraction force of the test sample in the present embodiment is tested Clamping method, and identical with embodiment 1 to the method for testing of the extraction force of test sample in the present embodiment, and the present embodiment is not Repeat again.
The test sample of the present invention is under stretching stress, owing to the surface of upper eccentric pinch roller and lower eccentric pinch roller all has Anti-slip veins designs, and the pressed part, two ends of test sample, under the effect of frictional force, drives upper eccentric pinch roller and lower bias respectively Pinch roller does the rotation of bias, and the two ends of test sample are pressed tighter and tighter automatically, and pulling force is the biggest, and chucking power is the biggest.
The present invention has clear stipulaties sample length, sample treatment, the method for sample test, and in sample, fiber uses punching The scheme cut off, it is ensured that product is when clamping, and single is not affected by clamping, it is ensured that the concordance of test data is with stable Property.
The inventive method, is possible not only to test sealing strip single extraction force, moreover it is possible on puller system controller Or the enterprising line parameter of computer interface sets, process of the test load, deformation values and curve show in real time, holding automatic to peak value, Automatically ask for the material mechanical performance index under various criterion, and print complete test report and trial curve.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art Member, on the premise of without departing from the inventive method, it is also possible to makes some improvement and supplements, and these improve and supplement and also should be regarded as Protection scope of the present invention.

Claims (8)

1. the clamping tooling of single extraction force test in a sealing strip, it is characterised in that described clamping tooling includes Clamp body, upper eccentric pinch roller, upper eccentric pinch roller bearing pin, upper eccentric pinch roller handle, lower clamp body, lower eccentric pinch roller, lower eccentric pressure Wheel bearing pin, lower eccentric pinch roller handle and test sample.
Test clamping tooling the most according to claim 1, it is characterised in that described upper clamp body is fixed on tensile test On the upper shifting board of machine；Described upper eccentric pinch roller is connected on upper clamp body by upper eccentric pinch roller bearing pin, and can around upper partially Heart pinch roller bearing pin does eccentric rotary；Described upper eccentric pinch roller handle is arranged on eccentric pinch roller external cylindrical surface, by upper partially The rotation to upper eccentric pinch roller of the heart pinch roller handle, scalable is inserted in the test sample between clamp body and upper eccentric pinch roller Loosen and clamping, and the dynamics of clamping.
Test clamping tooling the most according to claim 1, it is characterised in that described lower clamp body is fixed on tensile test The lower fixing end of machine；Described lower eccentric pinch roller is connected on lower clamp body by lower eccentric pinch roller bearing pin, and can be around lower bias Pinch roller bearing pin does eccentric rotary；Described lower eccentric pinch roller handle is arranged on lower eccentric pinch roller external cylindrical surface, by lower bias The rotation to lower eccentric pinch roller of the pinch roller handle, scalable is inserted in putting of the test sample between lower clamp body and lower eccentric pinch roller Pine and clamping, and the dynamics of clamping.
Test clamping tooling the most according to claim 1, it is characterised in that when test sample two ends respectively by upper partially After heart pinch roller and lower eccentric pinch roller clamp in advance, test sample is under stretching stress, due to upper eccentric pinch roller and lower eccentric pressure The surface of wheel all has anti-slip veins to design, and the pressed part, two ends of test sample, under the effect of frictional force, drives upper bias respectively Pinch roller and lower eccentric pinch roller do the rotation of bias, and the two ends of test sample are pressed tighter and tighter automatically, and pulling force is the biggest, and chucking power is more Greatly.
5. the exemplar of single extraction force test in a sealing strip, it is characterised in that before testing, need to carry out test sample Prepare and regulation；Described test sample is to intercept from finished product, and quantity is no less than 1；Between finished product and sulfuration before sampling Time interval should be greater than 16 hours；Test sample after sampling before testing, should be 23 ± 2 DEG C in temperature, humidity 50 ± 5% In the environment of regulating time more than 3H, period parked by sample must not stress.
Test sample the most according to claim 5, it is characterised in that a length of 300 ± 20mm of described test sample, Test sample includes a length of 30mm of gripping section；Epimere single Validity Test segment length is 100mm, uncovered fibres length along path Degree is 20 to 60mm；Hypomere single Validity Test segment length is 100mm；The lower a length of 30mm of gripping section；Described test specimens Part also includes cutting off cut-out hole under hole and single on single, described single cuts off and cuts off hole under hole and single Aperture is to select different size of perforating head according to product structure, can be as the criterion by complete cut staple line with minimum punching diameter.
Test sample the most according to claim 5, it is characterised in that a length of 350 ± 10mm of described test sample, Test sample includes a length of 30mm of gripping section；Epimere single Validity Test segment length is 125mm, uncovered fibres length along path Degree is 30 to 50mm；Hypomere single Validity Test segment length is 125mm；The lower a length of 30mm of gripping section；Described test specimens Part also includes cutting off cut-out hole under hole and single on single, described single cuts off and cuts off hole under hole and single Aperture is to select different size of perforating head according to product structure, can be as the criterion by complete cut staple line with minimum punching diameter.
8. the method for single extraction force test in a kind of sealing strip described in, it is characterised in that fiber in described sealing strip Line extraction force method of testing comprises the steps:
Step one: test sample is installed on puller system, clamping tooling upper gripping section and lower clamping to test sample respectively Duan Jinhang clamps；During clamping, retaining part keeps vertical, and avoids cutting off the folder cutting off hole under hole and single on single Hold.
Step 2: preset value of thrust by 2N and test sample is carried out pretension, it is ensured that test sample is vertical.
Step 3: the parameter value before test is set, test speed is set as 50 ± 5mm/min, also includes single Diameter, the length of effective fiber test section, ambient temperature, the input of humidity parameter.
Step 4: carry out the test of interior single extraction force, observes single and the change of test position in test process, and records guarantor Deposit the numerical value of single extraction force in sealing strip.
Step 5: repeat the above steps one to step 4, completes the test of the interior single extraction force of other test sample, and remembers The numerical value of single extraction force in record preservation sealing strip.
Step 6: take the arithmetic mean of instantaneous value of all test data as experimental result, the result of calculation revision of the convention a to decimal.
CN201610603051.2A 2016-07-28 2016-07-28 Fiber line extraction force test sample and the method that it is tested in a kind of sealing strip Active CN106289957B (en)

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国家发展和改革委员会: "《QC/T 716-2004汽车密封条插入力和拔出力试验方法》", 20 October 2004 *

Cited By (7)

* Cited by examiner, † Cited by third party
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CN108593461A (en) * 2018-05-29 2018-09-28 青岛科技大学 rubber performance test method
CN108593461B (en) * 2018-05-29 2022-11-01 青岛科技大学 Rubber performance test method
CN108956454A (en) * 2018-08-27 2018-12-07 昆山市和博电子科技有限公司 A kind of film adhesion test machine
CN111307586A (en) * 2019-12-06 2020-06-19 中国科学院长春应用化学研究所 Testing arrangement suitable for superstrong biological fibre
CN111307586B (en) * 2019-12-06 2021-01-08 中国科学院长春应用化学研究所 Testing arrangement suitable for superstrong biological fibre
CN114965027A (en) * 2022-07-13 2022-08-30 西南石油大学 Tensile fixture of biaxial tensile testing machine
CN114965027B (en) * 2022-07-13 2022-09-30 西南石油大学 Tensile fixture of biaxial tensile testing machine

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