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Aluminum plate material sharp edge corrosion test tool and method

A corrosion test, aluminum plate technology, applied in the analysis of materials, weather resistance/light resistance/corrosion resistance, measuring devices, etc., can solve the problems that cannot meet the requirements of the body, and the aluminum body cannot accurately express the corrosion situation, so as to achieve repeatability and reproduction Good performance, good sample consistency, and the same surface voltage

Pending Publication Date: 2020-07-28
SHANGHAI COTECH AUTOMOTIVE ENG CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Since the material of the powerful blade is steel, it cannot accurately represent the corrosion of the aluminum body, and the vertically placed blade cannot accurately represent the corrosion of the plane.
Therefore, the traditional sharp edge corrosion test can no longer meet the requirements of the current body design.

Method used

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  • Aluminum plate material sharp edge corrosion test tool and method
  • Aluminum plate material sharp edge corrosion test tool and method
  • Aluminum plate material sharp edge corrosion test tool and method

Examples

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Embodiment

[0041] Such as Figure 1~3 As shown, the present application proposes a sharp-edged corrosion test fixture for aluminum plate materials, including a sample and a support frame.

[0042] The sample includes a right-angled sample piece 1, and one side edge of the sample piece 1 is provided with a slope. The two parts perpendicular to each other of the sample sheet 1 are A side 3 and B side 4, which respectively represent the elevation and plane of the car body during the electrophoresis process. The slope is C surface 2, which represents the sharp edge of the vehicle body, and is gradually thinned from the set distance from the edge of sample 1 to the edge of sample 1. Multiple samples 1 can be set, and multiple samples 1 are arranged horizontally on the support frame. Different samples 1 are made of aluminum plates of different grades, which can realize the test of different body parts.

[0043] The support frame includes a cube frame 5 , a transverse support rod 6 and a long...

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Abstract

The invention relates to an aluminum plate material sharp edge corrosion test tool and method. The test tool comprises a sample and a supporting frame; the sample comprises a right-angle-shaped samplepiece; the edge of one side of the sample piece is provided with an inclined plane; the two parts, perpendicular to each other, of the sample piece are respectively a surface A and a surface B; the inclined plane is a surface C; and the supporting frame comprises a transverse supporting rod and a longitudinal supporting rod; the transverse supporting rod and the longitudinal supporting rod are respectively connected with the surface A and the surface B of the sample piece. Compared with the prior art, the method adopts the sharp-edge corrosion sample piece to test an aluminum plate part, cantest the conditions of a plane and a vertical face at the same time, can test samples made of different materials at the same time, and is more comprehensive, convincing and representative in test result.

Description

technical field [0001] The invention relates to the technical field of automobile anticorrosion, in particular to a tool and method for sharp edge corrosion testing of aluminum plate materials. Background technique [0002] As the first coating of the whole vehicle, electrophoretic paint is not only the base material for the subsequent mid-surface coating, but also the most critical step in the anti-corrosion of the whole vehicle. In recent years, the development trend of electrophoretic paint is thin film electrophoresis, the film thickness of the outer plate is reduced, and the film thickness of the inner plate is increased at the same time. The sharp edge itself is a part that is difficult to paint. The reduction of the thickness of the electrophoretic film makes it more difficult to form a complete paint film on this part, which has a greater impact on subsequent spraying and anti-corrosion. On the other hand, the plates used for the body of traditional fuel vehicles ar...

Claims

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Application Information

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IPC IPC(8): G01N17/00G01N1/28
CPCG01N1/28G01N1/286G01N17/00G01N17/002G01N2001/2873
Inventor 余皓谷长治锡洪鹏
Owner SHANGHAI COTECH AUTOMOTIVE ENG CORP LTD
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