CN204064803U - A kind of cross-linked polymer heat extends proving installation fixture modified node method - Google Patents
A kind of cross-linked polymer heat extends proving installation fixture modified node method Download PDFInfo
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- CN204064803U CN204064803U CN201420543386.6U CN201420543386U CN204064803U CN 204064803 U CN204064803 U CN 204064803U CN 201420543386 U CN201420543386 U CN 201420543386U CN 204064803 U CN204064803 U CN 204064803U
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Abstract
The utility model discloses a kind of cross-linked polymer heat and extend proving installation fixture modified node method, comprise fixture, described fixture comprises main body and pressing plate, described pressing plate adopts screw to be connected in main body, described screw is provided with spring, spring one end contact clamp surface, other end contact screw head end.Described pressing plate retained part is greater than main body retained part to step distance to breach distance.The utility model adopts the fixture of spring bearer plate form, spring has automatic telescopic function, sample temperature distortion, also can keep pressing plate not loosen, and implement device can adapt to different size thickness specimen test, sample temperature distortion does not come off, structure is simple, arranges pressing plate retained part to breach distance size, can realize the testing inspection of less thickness sample, one-piece construction is simple, convenient operation.
Description
Technical field
The utility model belongs to cross-linked polymer performance testing device field, and particularly a kind of cross-linked polymer heat extends proving installation fixture modified node method.
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 sample thickness size can not be less than 1mm, setting value is fixed, can not adapt to the sample of too much size type, and when the sample thicker with this equipment test, loading counterweight amount also can become heavy, after heating, thermal deformation is larger, pressing plate loosens, and is easy to landing, and this device is no longer applicable to the sample testing that thickness is large and thickness is less.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of cross-linked polymer heat to extend proving installation fixture modified node method, can adapt to different size thickness specimen test, sample temperature distortion do not come off, structure is simply, easy to operate, to overcome prior art problem.
The technical scheme that the utility model is taked is: a kind of cross-linked polymer heat extends proving installation fixture modified node method, comprise fixture, described fixture comprises main body and pressing plate, described pressing plate adopts screw to be connected in main body, described screw is provided with spring, spring one end contact clamp surface, other end contact screw head end.
Described pressing plate retained part is not less than main body retained part to step distance to breach distance.
Described retained part adopts right-angled intersection protruding.
Described pressing plate connects can also adopt screw and wing nut locking, and on body, hole is set to through hole.
The beneficial effects of the utility model: compared with prior art, the utility model adopts the fixture of spring bearer plate form, spring has automatic telescopic function, sample temperature distortion, also pressing plate can be kept not loosen, implement device can adapt to different size thickness specimen test, sample temperature distortion does not come off, structure is simple, pressing plate retained part is set to breach distance size, the testing inspection of less thickness sample can be realized, adopt the projection of right-angled intersection convex form, can better keep in touch, increase retained part effective skin friction, adopt the locking of wing nut form, when can realize tightening screw, spring does not and then rotate, easier for installation.
Accompanying drawing explanation
Fig. 1 is clamp structure schematic diagram of the present utility model;
Fig. 2 is the clamp structure schematic diagram of wing nut of the present utility model locking;
Fig. 3 is holder sample structure schematic diagram of the present utility model.
In figure: 1, fixture; 2, body; 3, pressing plate; 4, spring; 5, screw; 6, breach; 7, retained part; 8, step; 9, wing nut.
Embodiment
As shown in Fig. 1 ~ Fig. 3, a kind of cross-linked polymer heat extends proving installation fixture modified node method, comprise fixture 1, described fixture comprises main body 2 and pressing plate 3, described pressing plate 3 is square block, stepped form, have and place screw 5 step and pressing plate retained part 7 step, centre position arranges a through hole, hole size is greater than places screw 5 diameter, screw 5 is adopted to be connected on main body 2 step through through hole, main body there is corresponding ledge structure, step arranges threaded hole, described screw 5 is provided with spring 4, spring 4 is placed on screw 5 stub end, spring 4 end thereof contacts pressing plate 3 surface, other end contact screw 5 head end, by tightening screw 5, spring-compressed, pressing plate is subject to the acting thrust of spring, when fixture 1 clamp sample test time, under higher temperature, sample deformation, clamping part branch is caused to loosen, and pressing plate 2 is subject to the effect of spring 4, can remain that retained part can be close to sample, ensure that sample can not landing, when clamping sample and being thicker, by the stressed size of regulating spring, when ensureing that sample is heated, still can not come off, adapt to the test of thicker sample.
Described pressing plate retained part 7 is not less than main body retained part 10 to step 8 distance to breach 6 distance, and this distance can ensure the test of sample minimum thickness.
Described pressing plate retained part 7 and main body retained part 10 adopt right-angled intersection protruding, and transverse and longitudinal is sawtooth trapezium structure, and adopt this structure can better to remain valid contact, increase retained part effective skin friction, prevents sample from coming off.
Described pressing plate 3 connection can also adopt screw 5 and wing nut 9 to lock, and body is set to through hole, by screw 5 through spring 4 and through hole, be inserted in by wing nut 9 and tighten, when butterfly spring turns, screw 5 need not rotate, can ensure that spring 4 can not and then rotate, easier for installation.
Claims (4)
1. a cross-linked polymer heat extends proving installation fixture modified node method, comprise fixture (1), it is characterized in that: described fixture (1) comprises main body (2) and pressing plate (3), described pressing plate (3) adopts screw (5) to be connected in main body, described screw (5) is provided with spring (4), spring (4) end thereof contacts pressing plate (3) surface, other end contact screw (4) head end.
2. a kind of cross-linked polymer heat according to claim 1 extends proving installation fixture modified node method, it is characterized in that: described pressing plate retained part (7) is not less than main body retained part (10) to step (8) distance to breach (6) distance.
3. a kind of cross-linked polymer heat according to claim 2 extends proving installation fixture modified node method, it is characterized in that: described retained part (7) adopts right-angled intersection protruding.
4. a kind of cross-linked polymer heat according to claim 1 extends proving installation fixture modified node method, it is characterized in that: described pressing plate connects can also adopt screw and wing nut locking (9), and the upper hole of body (2) is set to through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420543386.6U CN204064803U (en) | 2014-09-22 | 2014-09-22 | A kind of cross-linked polymer heat extends proving installation fixture modified node method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420543386.6U CN204064803U (en) | 2014-09-22 | 2014-09-22 | A kind of cross-linked polymer heat extends proving installation fixture modified node method |
Publications (1)
| Publication Number | Publication Date |
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| CN204064803U true CN204064803U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420543386.6U Active CN204064803U (en) | 2014-09-22 | 2014-09-22 | A kind of cross-linked polymer heat extends proving installation fixture modified node method |
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| CN (1) | CN204064803U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758628A (en) * | 2014-12-19 | 2016-07-13 | 驰马拉链（安徽）有限公司 | Clamping device used for zipper tearing testing |
| CN105910896A (en) * | 2016-05-10 | 2016-08-31 | 黑龙江省电力科学研究院 | Fixing frame specially used for thermal elongation test |
| CN107543758A (en) * | 2017-09-19 | 2018-01-05 | 珠海市龙神有限公司 | One kind welding device for testing tensile force |
| CN108287107A (en) * | 2018-03-20 | 2018-07-17 | 国网山东省电力公司济宁供电公司 | A kind of hot elongation test holder and its application method |
| CN109060498A (en) * | 2018-06-26 | 2018-12-21 | 天津澳晨科技有限公司 | A kind of pendulum test machine |
| CN114346929A (en) * | 2021-12-09 | 2022-04-15 | 浙江坤博精工科技股份有限公司 | Clamp capable of avoiding workpiece deformation |
-
2014
- 2014-09-22 CN CN201420543386.6U patent/CN204064803U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758628A (en) * | 2014-12-19 | 2016-07-13 | 驰马拉链（安徽）有限公司 | Clamping device used for zipper tearing testing |
| CN105910896A (en) * | 2016-05-10 | 2016-08-31 | 黑龙江省电力科学研究院 | Fixing frame specially used for thermal elongation test |
| CN107543758A (en) * | 2017-09-19 | 2018-01-05 | 珠海市龙神有限公司 | One kind welding device for testing tensile force |
| CN108287107A (en) * | 2018-03-20 | 2018-07-17 | 国网山东省电力公司济宁供电公司 | A kind of hot elongation test holder and its application method |
| CN108287107B (en) * | 2018-03-20 | 2020-10-16 | 国网山东省电力公司济宁供电公司 | Thermal extension test support and using method thereof |
| CN109060498A (en) * | 2018-06-26 | 2018-12-21 | 天津澳晨科技有限公司 | A kind of pendulum test machine |
| CN114346929A (en) * | 2021-12-09 | 2022-04-15 | 浙江坤博精工科技股份有限公司 | Clamp capable of avoiding workpiece deformation |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |