一种海底法兰用锻件的热处理方法

By employing a multi-stage heat treatment process and specific quenching agents, the problem of insufficient strength in seabed flange forgings was solved, thereby improving the stability and safety of the forgings in the deep-sea environment.

CN121428250BActive Publication Date: 2026-07-17HEBEI YONGSHENG PETRO-CHEM MASCH MFG CO LTD
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Patent Information

Application Number
CN202511693081.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-18
Publication Date
2026-07-17
Estimated Expiration
2045-11-18

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Abstract

本发明涉及热处理工艺技术领域，提出了一种海底法兰用锻件的热处理方法，包括以下步骤：将锻件进行第一次正火处理、第二次正火处理、淬火处理、回火处理后得到；第一次正火处理为将锻件先以第一升温速率升温至700~720℃，保温1~2h后，再以第二升温速率升温至850~870℃，保温2~4h后，再冷却至280~300℃；其中，第一升温速率大于第二升温速率，第一次正火处理和第二次正火处理的正火参数不同。通过上述技术方案，解决了相关技术中的海底法兰用锻件强度不足的问题。
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