Oxygen index test system

A test system and oxygen index technology, applied in the field of multi-molecular materials, can solve the problems of inaccurate flow control system, simple ignition device, etc., achieve accurate detection results, high flow control precision, and avoid difficult detection

Active Publication Date: 2013-06-12
SHANGHAI CHANGYUAN ELECTRONICS MATERIAL +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention aims to solve the technical problems in the prior art, such as the inaccurate flow control system of the oxygen index tester and the shortcomings of the ignition device being too simple

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Embodiment Construction

[0014] In order to make the purpose and features of the present invention more comprehensible, the specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] See figure 1 , which is a schematic structural diagram of an oxygen index testing system provided by an embodiment of the present invention.

[0016] The oxygen index testing system includes: a combustion tube 100, to contain the material to be tested; a flow control system 200, connected to the combustion tube 100, passing gas into the combustion tube, and controlling the oxygen content of the gas ; The ignition device 300 is inserted into the combustion tube 100 to ignite the material to be tested.

[0017] In the embodiment of the present invention, the flow control system 200 includes: a nitrogen and oxygen cylinder 210, which has a pressure gauge and a pressure reducing valve; a rotameter 220, connected to the nitrogen and oxygen c...

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Abstract

The invention discloses an oxygen index test system which comprises a combustion tube, a flow control system and an ignition device, wherein the combustion tube is used for holding materials to be tested; the flow control system is connected with the combustion tube and used for introducing gas to the combustion tube and controlling the oxygen content of the introduced gas; and the ignition device is inserted into the combustion tube and used for igniting the materials to be tested. The oxygen index test system disclosed by the invention has the advantages of high flow control precision, good control of ignition position, simpleness in operation and accurate detection result.

Description

technical field [0001] The invention relates to the technical field of multimolecular materials, and in particular to an oxygen index testing system. Background technique [0002] At present, the flame retardant properties of non-metallic polymer materials are generally expressed by oxygen index. The test piece is ignited with an igniter, and the minimum oxygen concentration (expressed as a percentage) necessary to maintain continuous burning like a wax is determined. The instrument used to assess the oxygen index of polymeric materials is the oxygen index tester. The instrument is widely used in the combustion performance of various materials such as rubber and plastic. [0003] However, most of the current oxygen index testers have the disadvantages of simple equipment, inaccurate test methods and inaccurate test results. Among them, the experimental errors caused by the flow control system and the ignition device account for the vast majority. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/12
Inventor 刘伟王志李代双
Owner SHANGHAI CHANGYUAN ELECTRONICS MATERIAL
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