Test apparatus for ultraviolet aging acceleration of asphalt-based materials

A test device and asphalt-based technology, which is applied to measurement devices, analytical materials, instruments, etc., can solve the problems of inability to accurately quantitatively analyze ultraviolet radiation energy, cumbersome operation steps for asphalt specimens, and uneven aging of specimens. To adjust the work, the structure is simple, the effect of uniform light aging degree

Active Publication Date: 2015-11-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to provide a test device for accelerated ultraviolet aging of asphalt-based materials, so as to solve the problems of cumbersome operation steps, uneven aging degree of test pieces, large thermal aging interference, and inability to accurately control temperature in the aging test of asphalt specimens. Unable to accurately quantitatively analyze the problem of ultraviolet radiation energy

Method used

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  • Test apparatus for ultraviolet aging acceleration of asphalt-based materials
  • Test apparatus for ultraviolet aging acceleration of asphalt-based materials
  • Test apparatus for ultraviolet aging acceleration of asphalt-based materials

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specific Embodiment approach 1

[0027] Embodiment 1: Combining figure 1 Describe this embodiment, this embodiment includes an environmental chamber 1, a composite turntable 2, a transmission shaft 3, a temperature sensor 4, a data acquisition and control system 5, a drive motor 6, an ultraviolet radiation meter 7 and at least one ultraviolet light source 8, the The composite turntable 2 is arranged in the environmental chamber 1, and the composite turntable 2 includes a main turntable 2-1, and the at least one ultraviolet light source 8 is arranged directly above the main turntable 2-1, and the main turntable 2-1 The bottom surface of the drive shaft 3 is fixedly connected to one end of the drive shaft 3, and the other end of the drive shaft 3 is connected to the output shaft of the drive motor 6. A plurality of asphalt test pieces are placed on the main rotating disk 2-1, and the ultraviolet radiation meter 7 The ultraviolet probe is arranged on the disk surface of the main rotating disk 2-1, the reading ...

specific Embodiment approach 2

[0029] Specific implementation mode 2: Combining figure 1 and figure 2 Describe this embodiment, the composite turntable 2 in this embodiment also includes a plurality of auxiliary turntables 2-2, and a plurality of auxiliary turntables 2-2 are evenly distributed on the main turntable 2 along the circumferential direction of the main turntable 2-1 On the disk surface of -1, an asphalt test piece is placed in each auxiliary rotating disk 2-2.

[0030] In this embodiment, each auxiliary rotating disk 2-2 is provided with a vessel for holding asphalt test pieces, and the vessel can facilitate the cleaning work after the test and avoid contamination of the composite rotating disk 2. Other structures and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0031] Specific implementation three: combination figure 1 Describe the present embodiment, in the present embodiment, ultraviolet light source 8 is a high-pressure mercury lamp, and when the quantity of at least one ultraviolet light source 8 is one, ultraviolet light source 8 is positioned at the center directly above main rotating disk 2-1; When at least one ultraviolet light source When the number of 8 is multiple, a plurality of ultraviolet light sources 8 are evenly distributed directly above the plurality of secondary rotating disks 2-2; An ultraviolet light source 8 is arranged directly above each auxiliary rotating disk 2-2.

[0032] In this embodiment, the specific arrangement process in which the UV light sources 8 are evenly distributed directly above the plurality of auxiliary rotating disks 2-2 is as follows: the plurality of auxiliary rotating disks 2-2 are evenly distributed on the surface of the main rotating disk 2-1, The centers of circles of the pluralit...

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Abstract

The invention provides a test apparatus for ultraviolet aging acceleration of asphalt-based materials and relates to a test apparatus. The invention solves the problems of tedious operation steps, uneven specimen aging, large thermal aging interference, failure in precise temperature control and accurate quantitative analysis of UV radiation energy in an asphalt specimen aging test. A complex rotating disk is set in an environment; complex rotating disk comprises a main rotating disk; at least one ultraviolet light source is disposed above the main rotating disk; the bottom of the main rotating disk is secured to one end of a drive shaft, and the other end drive shaft of the is connected to the output shaft of a drive motor; multiple asphalt specimens are placed on the main rotating disk; an ultraviolet probe of an ultraviolet radiation meter is arranged on the main rotating disk; the reading unit of the ultraviolet radiation meter is disposed outside the environment box; a temperature sensor is located in the environment and close to the main rotating disk; and a data acquisition and control system is set outside the environment box and is electrically connected to the temperature sensor. The invention is used for material ageing test.

Description

technical field [0001] In particular, the invention relates to a test device for accelerated UV aging of bitumen-based materials. Background technique [0002] Aging test mainly refers to thermal oxygen aging test for rubber, plastic products, electrical insulation materials and other materials; or ventilation aging test for electronic parts and plasticized products. The aging test is divided into temperature aging, sunlight irradiation ultraviolet aging, loading aging and so on. There are mainly the following problems in the UV aging test of asphalt-based materials: [0003] 1) The equipment is simple, and the temperature cannot be controlled accurately, which is easy to cause thermal aging. [0004] At present, high-pressure mercury lamps are usually used to accelerate the ultraviolet aging of asphalt materials, but high-pressure mercury lamps will generate a lot of heat when they work, and the temperature control system of equipment currently used for ultraviolet aging ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
Inventor 张磊谭忆秋薛忠军王佳妮孙志棋
Owner HARBIN INST OF TECH
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