CN202421157U - Oxygen index tester - Google Patents
Oxygen index tester Download PDFInfo
- Publication number
- CN202421157U CN202421157U CN2012200131979U CN201220013197U CN202421157U CN 202421157 U CN202421157 U CN 202421157U CN 2012200131979 U CN2012200131979 U CN 2012200131979U CN 201220013197 U CN201220013197 U CN 201220013197U CN 202421157 U CN202421157 U CN 202421157U
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- CN
- China
- Prior art keywords
- glass combustion
- combustion cylinder
- glass
- oxygen
- oxygen index
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses an oxygen index tester which comprises a glass combustion cylinder. An igniter is arranged at the upper part of the glass combustion cylinder; a test sample clamp for fixing a test sample wafer and a metal net for shielding flaming droplets are arranged inside the glass combustion cylinder; the glass combustion cylinder is fixed on a control box by a base; the glass combustion cylinder is also communicated with an oxygen source and a nitrogen source by a flow control system; and a display and a switch are arranged on the control box. According to the utility model, the testing requirement on the combustion performances of various polymer materials can be met; and the igniter of the tester has small caliber and large wall thickness, and thus, not only can the diameter of the flame at an outlet be reduced and edges and corner angles beside the top of the test sample wafer are avoided being ignited in the igniting process so as to improve the accuracy of test data, but also the service life of the igniter can be prolonged.
Description
Technical field
The utility model relates to a kind of combustion testing equipment, especially a kind of oxygen index tester.
Background technology
So-called oxygen index; Be meant under the test condition of regulation; Sample is in oxygen-nitrogen mixture stream; Keep the required minimum oxygen concentration of smooth combustion (be aerobic burning), with the numeric representation of the shared percent by volume of oxygen promptly behind this substance combustion, (can keep burning 50mm grows or burning time the concentration of volume percent of hypoxemia in needed oxygen-nitrogen mixture body during 3min).It is as judging that the complexity that material burns when in air, contact with flame is very effective.
The oxygen index tester is to be used to evaluate the burning performance of polymkeric substance under the regulation test condition, promptly measures the concentration of volume percent that polymkeric substance is just kept the hypoxemia of burning.During substance combustion, need to consume a large amount of oxygen, different combustibles, the amount of oxygen that need consume during burning is different, through to consuming the mensuration of minimum oxygen amount in the substance combustion process, calculates the oxygen index value of material, thus the burning performance of evaluation material.This instrument is applicable to the burning performance test of plastics, rubber, fiber, polyfoam and various solids, and therefore accuracy, good reproducibility are generally adopted by countries in the world.
But; Along with all kinds of polymeric material production technologies in the last few years develop rapidly; The oxygen index tester that is used for the polymeric material burning performance is not but caught up with the demand in market; Domestic existing oxygen index tester is relatively deficienter at present, and mostly has the shortcoming that test data is inaccurate, serviceable life is short.
Summary of the invention
Goal of the invention: the purpose of the utility model is to solve the relatively deficienter problem of domestic existing oxygen index tester, provide a kind of test data accurately, the oxygen index tester of long service life.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
A kind of oxygen index tester; Comprise the glass combustion barrel; The top of said glass combustion barrel is provided with lighter, and the set inside of glass combustion barrel is used for fixing the sample holder and the wire netting that is used to block the burning dropping of test sample, and the glass combustion barrel is fixed on the control box through pedestal; The glass combustion barrel also is communicated with source of oxygen and source nitrogen through flow control system, and display and switch are set on control box.
In the utility model, further, the bore of said lighter is 1-2mm, and wall thickness is 2mm.
In the utility model, described sample holder is metal spring sheet or U type folder.
Beneficial effect: 1) the utility model can satisfy the testing requirement of various polymeric material burning performancies; 2) bore of the lighter of this tester is less and wall thickness is thicker, not only can reduce the diameter of outlet flame, and limit and the corner angle on next door, test sample top are lighted when avoiding lighting a fire, thus raising test data accuracy; And can prolong serviceable life of lighter.
Description of drawings
Be illustrated as the structural representation of the utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done explanation further.
As shown in the figure, the oxygen index tester of the utility model comprises glass combustion barrel 12, on the top of glass combustion barrel 12 lighter 5 is set, and the bore of lighter 5 is 1-2mm, and wall thickness is 2mm.The set inside of glass combustion barrel 12 is used for fixing the sample holder 4 and the wire netting 3 that is used to block the burning dropping of test sample 6.Sample holder 4 can be the metal spring sheet; For membraneous material, should use the U type sample holder of 140mm * 38mm.Glass combustion barrel 12 is fixed on the control box 1 through pedestal 2, and glass combustion barrel 12 also is communicated with source of oxygen and source nitrogen through flow control system.Display 10 and switch 11 are set on control box 1.Flow control system comprises the tensimeter 9 that is arranged on the control box 1, and reduction valve 7 and gas meter 8, pressure maintaining valve and pipeline composition, can control the flow of oxygen, nitrogen through flow control system.
The method of testing of oxygen index tester is held in test sample 6 usefulness sample holders 4 vertical folders of certain size in the glass combustion barrel 12 exactly, and the oxygen and nitrogen streams that upwards flows that mixes is by a certain percentage wherein arranged.Through the top that lighter 5 is lighted test sample 6, observe combustion phenomena subsequently, record sustained combustion time or the distance of burning.When surpassing 3min or flame front the burning time of test sample 6, just reduce oxygen concentration, when the burning time of test sample 6, not enough 3min or flame front were less than the 50mm graticule, just increase oxygen concentration above the 50mm graticule.Like this repeatable operation moves closer to setting from both sides up and down, to both concentration difference less than 0.5%.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (3)
1. oxygen index tester; It is characterized in that: comprise glass combustion barrel (12); The top of said glass combustion barrel (12) is provided with lighter (5); The set inside of glass combustion barrel (12) is used for fixing the sample holder (4) of test sample (6) and is used to block the wire netting (3) of burning dropping; Glass combustion barrel (12) is fixed on the control box (1) through pedestal (2), and glass combustion barrel (12) also is communicated with source of oxygen and source nitrogen through flow control system, and display (10) and switch (11) are set on control box (1).
2. a kind of oxygen index tester according to claim 1 is characterized in that: the bore of said lighter (5) is 1-2mm, and wall thickness is 2mm.
3. a kind of oxygen index tester according to claim 1 and 2 is characterized in that: described sample holder (4) is metal spring sheet or U type folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200131979U CN202421157U (en) | 2012-01-12 | 2012-01-12 | Oxygen index tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200131979U CN202421157U (en) | 2012-01-12 | 2012-01-12 | Oxygen index tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421157U true CN202421157U (en) | 2012-09-05 |
Family
ID=46745910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200131979U Expired - Fee Related CN202421157U (en) | 2012-01-12 | 2012-01-12 | Oxygen index tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421157U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149321A (en) * | 2013-02-25 | 2013-06-12 | 上海长园电子材料有限公司 | Oxygen index test system |
| CN104897847A (en) * | 2015-06-16 | 2015-09-09 | 安徽中烟工业有限责任公司 | Method and device for testing burning rate of carbonaceous heat source |
| CN105467065A (en) * | 2015-12-30 | 2016-04-06 | 重庆精榜高分子材料有限公司 | Oxygen index tester |
| CN106290702A (en) * | 2016-09-29 | 2017-01-04 | 西南林业大学 | The test method that a kind of plant blades flammability compares |
| CN106645553A (en) * | 2016-12-24 | 2017-05-10 | 天津达元吉科技有限公司 | Oxygen index test apparatus |
| CN107144663A (en) * | 2017-03-23 | 2017-09-08 | 北京科技大学 | A kind of temperature-controllable tests the method and system of metal material burning behavior |
| CN114324734A (en) * | 2021-12-14 | 2022-04-12 | 上海力道新材料科技股份有限公司 | Method and device for representing combustion performance of material |
-
2012
- 2012-01-12 CN CN2012200131979U patent/CN202421157U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149321A (en) * | 2013-02-25 | 2013-06-12 | 上海长园电子材料有限公司 | Oxygen index test system |
| CN103149321B (en) * | 2013-02-25 | 2015-04-29 | 上海长园电子材料有限公司 | Oxygen index test system |
| CN104897847A (en) * | 2015-06-16 | 2015-09-09 | 安徽中烟工业有限责任公司 | Method and device for testing burning rate of carbonaceous heat source |
| CN105467065A (en) * | 2015-12-30 | 2016-04-06 | 重庆精榜高分子材料有限公司 | Oxygen index tester |
| CN105467065B (en) * | 2015-12-30 | 2017-08-15 | 重庆精榜高分子材料有限公司 | A kind of oxygen index (OI) tester |
| CN106290702A (en) * | 2016-09-29 | 2017-01-04 | 西南林业大学 | The test method that a kind of plant blades flammability compares |
| CN106290702B (en) * | 2016-09-29 | 2019-02-01 | 西南林业大学 | A kind of test method that plant blades flammability compares |
| CN106645553A (en) * | 2016-12-24 | 2017-05-10 | 天津达元吉科技有限公司 | Oxygen index test apparatus |
| CN107144663A (en) * | 2017-03-23 | 2017-09-08 | 北京科技大学 | A kind of temperature-controllable tests the method and system of metal material burning behavior |
| CN114324734A (en) * | 2021-12-14 | 2022-04-12 | 上海力道新材料科技股份有限公司 | Method and device for representing combustion performance of material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20180112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |