Electroslag welding apparatus and method of welding
By adding a current loop and adjusting the current and power ratio in the electroslag welding device, combined with the cooling effect of the liquid-cooled forming slider, the problem of poor weld formation quality in traditional electroslag welding was solved, and uniform weld formation and quality improvement were achieved.
CN119703326BActive Publication Date: 2026-03-03MCC (SHANGHAI) STEEL STRUCTURE TECHNOLOGY CORP LTD
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Patent Information
- Application Number
- CN202411858984.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2044-12-17
AI Technical Summary
Technical Problem
Traditional electroslag welding results in poor weld formation quality, with defects such as incomplete fusion and slag inclusions, and poor weld surface quality.
Method used
By adding a current loop to the electroslag welding device and optimizing the heat distribution by adjusting the current and power ratio of the two current loops, combined with the cooling effect of the liquid-cooled forming slider, uniform weld formation can be achieved.
Benefits of technology
It improves the forming quality of electroslag welds, reduces defects such as incomplete fusion and slag inclusions, and improves the surface and internal quality of the welds.
✦ Generated by Eureka AI based on patent content.
Abstract
This invention provides an electroslag welding apparatus and a welding method thereof. The electroslag welding apparatus includes a workpiece body and a power source. A slag pool is disposed within the workpiece body, and a molten pool is disposed below the slag pool. Metal slag in the slag pool accumulates below the molten pool after passing through it, forming a weld. A liquid-cooled forming slider is disposed around the periphery of the molten pool. The height of the molten pool increases with the accumulation of the weld, and the height of the liquid-cooled forming slider also increases with the molten pool. Furthermore, a first conductive path is provided between the slag pool and the positive electrode of the power source, a second conductive path is provided between the weld and the negative electrode of the power source, and a third conductive path is provided between the liquid-cooled forming slider and the negative electrode. The electroslag welding apparatus provided by this invention can solve the problem of poor weld formation quality in the prior art.
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