Corrosion Gel for Weld Detection, Preparation Method, Corrosion Method and Weld Surface Crack Detection Method
By using the potential analysis method of corrosive gel and indicator electrode, the problem of low accuracy in liquid permeability detection is solved, and qualitative and quantitative detection of weld surface cracks is achieved, which improves the accuracy and safety of detection.
CN115791834BActive Publication Date: 2025-07-25SHANDONG LUQIAO GROUP CO LTD
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Patent Information
- Application Number
- CN202310005278.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-04
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2043-01-04
AI Technical Summary
Technical Problem
The existing liquid permeability detection methods have low accuracy in the detection of cracks on weld surfaces, making it difficult to achieve quantitative evaluation, and insufficient evaluation of crack depth.
Method used
Corrosive gels containing agar, sulfuric acid, hydroxylamine hydrochloride solution, p-tolylthiourea, stannous sulfate, thiourea, tralaston X-100 solution and o-phenanthroline derivatives were used to quantitatively evaluate the crack depth on the weld surface by potential analysis.
Benefits of technology
Qualitative and accurate detection and quantitative evaluation of weld surface cracks are achieved, the accuracy of detection is improved, and the safety hazards of steel structure engineering are eliminated.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to a corrosion gel for weld detection, a preparation method, a corrosion method and a weld surface crack detection method, belonging to the technical field of weld detection. The corrosion gel for weld detection comprises the following raw materials: agar, water, 98% sulfuric acid, 10% hydroxylamine hydrochloride solution, p-tolylthiourea, stannous sulfate, thiourea, 10% Triton X-100 solution and 0.05% ethanol solution of o-phenanthroline derivative. The preparation method of the corrosion gel for weld detection comprises the following steps: weighing agar and dissolving it in water; sequentially adding 98% sulfuric acid, hydroxylamine hydrochloride solution, p-tolylthiourea, stannous sulfate, thiourea, Triton X-100 solution and ethanol solution of o-phenanthroline derivative; adding 100 mL of ethanol solution of o-phenanthroline derivative and mixing evenly to obtain a hot corrosion gel. A weld surface crack detection method comprises the following steps: making an indicating electrode; preparing a corrosion gel; treating the weld with the corrosion gel; evaluating the weld crack.
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