一种用于模拟耐候钢隐蔽缝隙部位凝露积液局部腐蚀的大气加速试验系统及方法
By constructing an atmospheric accelerated testing system, the coordinated control of the local corrosion process of condensation and accumulation in the concealed gaps of weathering steel was achieved. This solved the problem that it is difficult to simulate condensation formation, liquid migration, accumulation retention and evaporation concentration in existing technologies. It enabled accelerated simulation and evaluation of the local corrosion process and is suitable for evaluating the local corrosion sensitivity of weathering steel materials and comparative studies under different working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Filing Date
- 2026-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies make it difficult to achieve coordinated control of condensation formation, liquid migration, liquid retention, evaporation concentration, and rewetting cycles in the hidden gaps of weathering steel within the same test system, resulting in difficulties in accurately characterizing local corrosion sensitivity and its unstable behavior.
An atmospheric accelerated testing system is provided, including an environmental control unit, a sample clamping unit, a gap configuration limiting unit, an attitude adjustment unit, a local condensation induction unit, a dew point closed-loop control unit, a liquid accumulation retention unit, an evaporation concentration unit, and a rewetting unit, to construct a controllable thin liquid film circulating environment to simulate the local corrosion process in the hidden gaps of weathering steel.
It enables effective accelerated simulation and evaluation of localized corrosion processes in concealed gaps of weathering steel, improves the repeatability and comparability of experiments, can realistically reproduce the localized corrosion failure environment in actual engineering, and is applicable to the study of corrosion behavior of different materials and working conditions.
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Figure CN122409481A_ABST