CN104297071A - Cross-linked polymer hot extension testing device - Google Patents
Cross-linked polymer hot extension testing device Download PDFInfo
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- CN104297071A CN104297071A CN201410481967.6A CN201410481967A CN104297071A CN 104297071 A CN104297071 A CN 104297071A CN 201410481967 A CN201410481967 A CN 201410481967A CN 104297071 A CN104297071 A CN 104297071A
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- cross
- linked polymer
- extends
- proving installation
- pallet
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Abstract
The invention discloses a cross-linked polymer hot extension testing device. The cross-linked polymer hot extension testing device comprises an upper clamp, a lower clamp, a tray, connection wires and weights, wherein each of the upper clamp and the lower clamp adopts a clamp which has a clamping edge capable of being automatically adapted to the thickness and a pressing piece for loading and unloading a part; the upper clamp is connected with the top of a constant-temperature box and the clamping edge of the upper clamp is used for clamping the upper end of a test sample; the lower clamp is connected with the connection wires; the clamping edge of the lower clamp is used for clamping the lower end of the test sample; the connection wires are symmetrically distributed at the four corners of the tray; and the weights are arranged in the tray. The cross-linked polymer hot extension testing device adopts a long-tail clamp with simple structure, the tray, the connection wires and the weights so that the device can be used for testing the test samples with different sizes and thicknesses; the test samples are deformed by heat and do no easily fall off; the test samples can be conveniently loaded and unloaded; the weights are convenient to load and unload; and the cross-linked polymer hot extension testing device is simple in structure and low in cost.
Description
Technical field
The invention belongs to cross-linked polymer performance testing device field, particularly a kind of cross-linked polymer heat extends proving installation.
Background technology
Cross-linked polymer, especially crosslinked polyethylene are widely used in the fields such as cable, tubing and film, and hot extensibility is its main performance index.Along with the development of technology, the progress of science, cross-linking method is environmental protection and energy saving more and more.For crosslinked polyethylene, silane one step cross-linking method gains great popularity.
Natural-crosslinked cardinal principle is the moisture that cross-linked polymer absorbs in air, crosslinked under the effect of catalyzer.According to the literature and facts have proved, the crosslinking rate of crosslinked polyethylene becomes negative correlation with crosslinking degree with its thickness.Thickness is thicker, and crosslinking rate is slower, and crosslinking degree is lower.The thickness of Standard test sample is 1mm, and the actual a few tenths of a mm that is used in is between several millimeters.So, to the research of the different-thickness emphasis by natural-crosslinked method after being.
Current hot extension apparatus used is bolted clamping sample two ends, clamping size is fixed, the sample of too much size can not be adapted to, and increase due to the thickness of sample, after heating, thermal deformation is comparatively large, and be easy to landing, this device is no longer applicable to the large sample testing of thickness, and adopting screw to turn to clamp sample, sample charge and discharge operations is very inconvenient.In addition, when adopting the sample of different-thickness to test, need different counterweight weight, existing loading counterweight could place counterweight after needing to remove counterweight bar, forms tandem counterweight, loads and unloads very inconvenient.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of cross-linked polymer heat to extend proving installation, can adapt to different size thickness specimen test, sample temperature distortion does not come off, handling sample is convenient, and handling counterweight is convenient, and cost is low, structure is simple, to overcome prior art problem.
The technical scheme that the present invention takes is: a kind of cross-linked polymer heat extends proving installation, comprise fixture, lower clamp, connecting line, pallet and counterweight, described upper fixture and lower clamp adopt the fixture of the pressing piece of gripper edge and the handling part having and automatically adapt to thickness, described upper fixture is connected in constant temperature oven top, sample upper end is clamped on upper holder limit, described lower clamp is connected on connecting line, lower clamp gripper edge clamps sample lower end, described connecting line lower end is connected on pallet, be arranged symmetrically on pallet four hole, in described pallet, place counterweight.
Described upper fixture and lower clamp adopt binder clip.
The described binder clip back side arranges hook, hook centering position.
Described pallet adopts square or circular.
The steel of described pallet the selection of material refractory temperature at least 250 DEG C.
Described connecting line can adopt metal fine or fine iron chain.
Described connecting line selects two isometric diameters to be the steel wire of 0.5 ~ 1.5mm.
Described counterweight precision adopts more than secondary.
Beneficial effect of the present invention: compared with prior art, the present invention adopts fixture, lower clamp, pallet and counterweight, implement device can adapt to different size thickness specimen test, sample temperature distortion does not come off, and handling sample is convenient, and handling counterweight is convenient, structure is simple, cost is low, compares original device, and cost is 1/10th of original installation cost; Adopt the simple binder clip of structure, this binder clip has automatic force function and pressing piece, and along with sample temperature distortion, fixture also shrinks automatically, can prevent sample landing, and warranty test normally carries out, by pressing piece conveniently assemble and disassemble sample; The binder clip back side arranges hook, upper fixture is convenient to handling, lower clamp is convenient to handling connecting line and adjustment, hook centering position, be convenient to sample uniform force, keep balance, adopt the pallet of fire resistive material, can be remained unchanged shape under the higher experimental enviroment of temperature, metal fine or thin chain, have elasticity or flexibility, can realize stable connecting trays after penetrating pallet hole, can not come off, and it is upper stable to be placed in hook, can not slide, be convenient to symmetrical adjustment, the grade that counterweight adopts, can meet testing inspection precision.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, upper fixture; 2, lower clamp; 3, connecting line; 4, pallet; 5, counterweight; 6, sample; 7, link up with.
Embodiment
As shown in Figure 1, a kind of cross-linked polymer heat extends proving installation, comprise fixture 1, lower clamp 2, connecting line 3, pallet 4 and counterweight 5, described upper fixture 1 and lower clamp 2 adopt the fixture of the pressing piece of gripper edge and the handling part having and automatically adapt to thickness, the file such as sold on the market or binder clip, upper fixture 1 can realize automatic clamping function, gripper edge can separate by pressing piece, gripper edge reference position is in closure state, upper fixture 1 upper end is connected in constant temperature oven top, pressing pressing piece opens fixture 1 gripper edge, put into sample 6 one end, sample 6 can be clamped, lower clamp 1 structure is identical with upper fixture 2, stand upside down and place, lower end is connected on connecting line 3, gripper edge clamps sample 6 lower end, connecting line 3 is arranged symmetrically on pallet 4 four hole, described pallet 4 li of placement counterweights 5, fixture 1 in employing, lower clamp 2, pallet 4 and counterweight 5, implement device can adapt to different size thickness specimen test, sample temperature distortion does not come off, handling sample is convenient, handling counterweight is convenient, handling counterweight 5 convenience, structure is simple, cost is low, compare original device, cost is 1/10th of original installation cost.
Described upper fixture and lower clamp adopt binder clip, binder clip structure is simple, easy to make, with low cost, the function that automatically exerts a force can be realized, along with sample temperature distortion, fixture also shrinks automatically, can prevent sample landing, warranty test normally carries out, buy needs suitably to improve, through hole is set, place hook.
The described binder clip back side arranges hook, and upper fixture is convenient to handling, and lower clamp is convenient to handling connecting line and adjustment, and hook centering position, is convenient to sample uniform force, keeps balance.
Described pallet adopts square or circular, and structural symmetry is easy to use.
The steel of described pallet the selection of material refractory temperature at least 250 DEG C, pallet can remain unchanged in test shape, does not affect test and carries out.
Described connecting line is made has certain flexibility metal fine or fine iron chain, can realize stable connecting trays, can not come off after penetrating pallet hole, and it is upper stable to be placed in hook, can not slide, and is convenient to symmetrical adjustment.
Described connecting line selects two isometric diameters to be the steel wire of 0.5 ~ 1.5mm, and symmetrical placement tray, keeps overall stress balance.
Described counterweight precision adopts more than secondary, can meet testing inspection precision.
Claims (8)
1. a cross-linked polymer heat extends proving installation, comprise fixture (1), lower clamp (2), connecting line (3), pallet (4) and counterweight (5), it is characterized in that: described upper fixture (1) and lower clamp (2) adopt the fixture of the pressing piece of gripper edge and the handling part having and automatically adapt to thickness, described upper fixture (1) is connected in constant temperature oven top, upper fixture (1) gripper edge clamps sample (6) upper end, described lower clamp (2) is connected on connecting line (3), lower clamp (2) gripper edge clamps sample (6) lower end, described connecting line (3) lower end is connected on pallet (4), be arranged symmetrically on pallet (4) four hole, described pallet (4) is inner places counterweight (5).
2. a kind of cross-linked polymer heat according to claim 1 extends proving installation, it is characterized in that: described upper fixture (1) and lower clamp (2) adopt binder clip.
3. a kind of cross-linked polymer heat according to claim 2 extends proving installation, it is characterized in that: the described binder clip back side arranges hook (7), hook (7) centering position.
4. a kind of cross-linked polymer heat according to claim 1 extends proving installation, it is characterized in that: described pallet (4) adopts square or circular.
5. a kind of cross-linked polymer heat according to claim 1 extends proving installation, it is characterized in that: the steel of described pallet (4) the selection of material refractory temperature at least 250 DEG C.
6. a kind of cross-linked polymer heat according to claim 1 extends proving installation, it is characterized in that: described connecting line (3) can adopt metal fine or fine iron chain.
7. a kind of cross-linked polymer heat according to claim 1 extends proving installation, it is characterized in that: described connecting line (3) selects two isometric diameters to be the steel wire of 0.5 ~ 1.5mm.
8. a kind of cross-linked polymer heat according to claim 1 extends proving installation, it is characterized in that: described counterweight precision adopts more than secondary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410481967.6A CN104297071A (en) | 2014-09-19 | 2014-09-19 | Cross-linked polymer hot extension testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410481967.6A CN104297071A (en) | 2014-09-19 | 2014-09-19 | Cross-linked polymer hot extension testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104297071A true CN104297071A (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410481967.6A Pending CN104297071A (en) | 2014-09-19 | 2014-09-19 | Cross-linked polymer hot extension testing device |
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| CN (1) | CN104297071A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865935A (en) * | 2016-05-27 | 2016-08-17 | 江苏鑫丰塑业有限公司 | Plastic hot prolongation testing device |
| CN116929950A (en) * | 2023-06-08 | 2023-10-24 | 广东广麟材耀新能源材料有限公司 | Evaluation testing tool and method for high temperature resistance of aluminum plastic film in different states |
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| DE4116422A1 (en) * | 1991-05-18 | 1992-11-19 | Oberspree Habelwerk Gmbh | Tubular or pipe shaped test bodies clamping system for tensile testing machine - has two clamping places each provided with one or more part holding ring with conical through bore and conical plug |
| JP2543559B2 (en) * | 1987-07-16 | 1996-10-16 | カール、シェンク、アクチエンゲゼルシャフト | Specimen tightening device for material testing machine |
| CN201689010U (en) * | 2010-05-11 | 2010-12-29 | 葛洲坝集团试验检测有限公司 | Self-tightening flexible strap-shaped test sample tensile testing clamp |
| CN201955273U (en) * | 2011-03-22 | 2011-08-31 | 齐齐哈尔大学 | Device for testing tensile creep performance of polymer |
| CN103411837A (en) * | 2013-06-18 | 2013-11-27 | 重庆大学 | Device and method for measuring elasticity modulus of metallic material |
| CN203606234U (en) * | 2013-11-13 | 2014-05-21 | 同济大学 | Test unit for researching material uniaxial creep effect |
| CN204064819U (en) * | 2014-09-19 | 2014-12-31 | 贵州凯科特材料有限公司 | A kind of cross-linked polymer heat extends proving installation |
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2014
- 2014-09-19 CN CN201410481967.6A patent/CN104297071A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2543559B2 (en) * | 1987-07-16 | 1996-10-16 | カール、シェンク、アクチエンゲゼルシャフト | Specimen tightening device for material testing machine |
| DE4116422A1 (en) * | 1991-05-18 | 1992-11-19 | Oberspree Habelwerk Gmbh | Tubular or pipe shaped test bodies clamping system for tensile testing machine - has two clamping places each provided with one or more part holding ring with conical through bore and conical plug |
| CN201689010U (en) * | 2010-05-11 | 2010-12-29 | 葛洲坝集团试验检测有限公司 | Self-tightening flexible strap-shaped test sample tensile testing clamp |
| CN201955273U (en) * | 2011-03-22 | 2011-08-31 | 齐齐哈尔大学 | Device for testing tensile creep performance of polymer |
| CN103411837A (en) * | 2013-06-18 | 2013-11-27 | 重庆大学 | Device and method for measuring elasticity modulus of metallic material |
| CN203606234U (en) * | 2013-11-13 | 2014-05-21 | 同济大学 | Test unit for researching material uniaxial creep effect |
| CN204064819U (en) * | 2014-09-19 | 2014-12-31 | 贵州凯科特材料有限公司 | A kind of cross-linked polymer heat extends proving installation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865935A (en) * | 2016-05-27 | 2016-08-17 | 江苏鑫丰塑业有限公司 | Plastic hot prolongation testing device |
| CN116929950A (en) * | 2023-06-08 | 2023-10-24 | 广东广麟材耀新能源材料有限公司 | Evaluation testing tool and method for high temperature resistance of aluminum plastic film in different states |
| CN116929950B (en) * | 2023-06-08 | 2024-04-26 | 广东广麟材耀新能源材料有限公司 | Evaluation testing tool and method for high temperature resistance of aluminum plastic film in different states |
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Application publication date: 20150121 |
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