罐体修复焊接成型工艺方法

By using non-destructive testing and precise marking of weld defects, combined with thin-plate patch repair and ultrasonic testing, the problem of weld repair was solved, achieving efficient and low-cost tank repair and ensuring the safe operation of the tank.

CN116493869BActive Publication Date: 2026-07-17广西钢铁集团有限公司 +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
广西钢铁集团有限公司
Filing Date
2023-04-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for repairing welds in tanks containing molten metal suffer from several drawbacks. Weld defects are often located deep and close to the back side, making repair difficult. Furthermore, removing the inner wall refractory material is costly and challenging, leading to frequent rework and impacting the safe operation of the tank.

Method used

Weld defects are marked using non-destructive testing and treated with tools such as carbon arc gouging and grinding wheels. Externally, they are repaired by applying thin plates to the inner refractory lining, avoiding the removal of the refractory material. Ultrasonic testing and heat treatment are combined to ensure quality.

Benefits of technology

It enables rapid and low-cost weld repair, reduces process difficulty, avoids rework, and improves repair quality and tank safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开一种罐体修复焊接成型工艺方法,它依次包括检测确定、标记焊缝缺陷的具体信息;划分缺陷深度进行处理,利用碳弧气刨对标记的缺陷进行初刨,打磨成坡口;观察坡口的干净平整度,检测确认缺陷完全清除;在大范围刨穿的坡口位置,制作薄板贴片,从外部对罐体内衬耐材进行修整,将薄板贴片嵌入坡口背面;未刨穿部位对坡边之间的缝隙进行打底焊接;刨穿部位对薄板贴片四周进行点焊固定后打底焊接;焊接过程对每道焊缝进行清根检查;焊接完成后进行热处理及超声波探伤。本发明不用拆除罐体内壁耐材,节省时间、材料、人力成本,大幅降低焊接工艺难度,且可一次性焊接成型,提高质量的同时避免多次返修造成罐体母材及焊缝力学性能下降。
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