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Coating material impact resistance test device considering environment temperature

A coating material and testing device technology, which is applied in measuring devices, analyzing materials, and testing the strength of materials by applying repetitive force/pulsation force, etc., can solve the problems of inability to reflect and detect the coupling effect of temperature changes on the surface of the coating, etc. , to achieve the effect of simple structure, wide application range and simple device

Pending Publication Date: 2022-02-25
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the traditional detection devices only consider the impact of liquid droplets on the test piece at room temperature, and cannot detect the coupling effect of the surface temperature change of the coating after the impact and the impact of raindrops, and cannot reflect the situation in the real service state.

Method used

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  • Coating material impact resistance test device considering environment temperature
  • Coating material impact resistance test device considering environment temperature
  • Coating material impact resistance test device considering environment temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] refer to Figure 1-5 As shown, the present invention provides a coating material impact resistance test device considering ambient temperature, comprising a jet box, the output end of the jet box is correspondingly provided with an environment box, and one side of the environment box is connected with an environment conditioning box; The box is provided with a high-speed jet generator and a jet cutting mechanism for controlling the jet frequency. An inlet 13 is provided on the side wall of the environmental box, and the high-speed jet generator is correspondingly arranged with the inlet 13. The entrance 13 is set correspondingly; the coating test piece installation device corresponding to the entrance 13 is arranged in the environment box, and the pressure balance window 7 used to balance the internal pressure of the environment box is connected to the top of the environment box, and the environment adjustment box is used to realize the pressure balance of the environmen...

Embodiment 2

[0047] The difference between the jet cutting mechanism of this embodiment and the first embodiment is that the edge of the disc 11 is provided with several cutting holes 6, the edge of the synchronous shutter 23 is provided with a number of incident holes 21, the outlet of the jet tube 4, the top of the The cutting hole 6, the incident hole 21 on the top and the inlet 13 are arranged correspondingly.

[0048] Several cutting holes 6 are all equal to the distance from the center of the disc 11, and the included angles between every adjacent two groups of cutting holes 6 are equal; when testing, it is convenient to utilize cutting holes 6 with different numbers, and have a plurality of cutting holes 6 discs 11 are convenient to improve the droplet passing efficiency; when the synchronous motor 5 reaches the maximum speed, it reaches the upper limit of the impact frequency of the device, and replacing the device with multiple cutting holes 6 can further increase the impact freque...

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PUM

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Abstract

The invention provides a coating material impact resistance test device considering environment temperature. The device comprises a jet flow box body, the output end of the jet flow box body is correspondingly provided with an environment box, and one side of the environment box is communicated with an environment adjusting box; a high-speed jet generator and a jet cutting mechanism for controlling the jet frequency are arranged in the jet flow box body; an inlet is formed in the side wall of the environment box; the high-speed jet generator corresponds to the inlet, and the jet cutting mechanism corresponds to an outlet and the inlet of the high-speed jet generator respectively; a coating test piece mounting device corresponding to the inlet is arranged in the environment box, the top of the environment box is connected with a pressure balance window used for balancing the internal pressure of the environment box, and the environment adjusting box is used for adjusting the high-temperature environment or the low-temperature environment; and the high-speed jet flow generator, the jet flow cutting mechanism and the environment adjusting box are electrically connected with a PLC. The impact resistance of the coating test piece can be detected in different environments, the structure is simple, the cost is low, and the application range is wide.

Description

technical field [0001] The invention belongs to the technical field of performance detection experimental devices, and in particular relates to a coating material impact resistance test device considering the ambient temperature. Background technique [0002] In order to ensure the stealth performance of military aircraft, the surface of its fuselage and wing is often covered with a stealth coating. The impact process of the aircraft surface will cause local temperature changes, and the actual impact conditions need to consider the temperature changes of the impact coating. The loss of coating performance will seriously affect the service state of the aircraft, so the impact resistance of the coating is an important index in the inspection of coating performance. However, most of the traditional detection devices only consider the impact of liquid droplets on the test piece at room temperature, and cannot detect the coupling effect of the surface temperature change of the c...

Claims

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Application Information

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IPC IPC(8): G01N3/32G01N3/02
CPCG01N3/32G01N3/02G01N2203/001
Inventor 豆清波杨宇宸索涛汤忠斌
Owner NORTHWESTERN POLYTECHNICAL UNIV
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