一臺(tái)鍋爐主汽閥裂紋的理化分析及建議

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摘要：在對(duì)一臺(tái)鍋爐主蒸汽閥門(mén)的磁粉檢測(cè)過(guò)程中，發(fā)現(xiàn)多處密級(jí)裂紋缺陷，文中通過(guò)微觀下的理化檢測(cè)對(duì)裂紋微觀形成原因進(jìn)行分析，并提出合理化建議。

關(guān)鍵詞：鍋爐；裂紋；主汽閥；金相分析；硬度檢測(cè)

Physicochemical Analysis and Recommendations for Addressing Cracks in the Main Steam Valve of a Boiler

MA Huohua

（ Fujian Boiler and Pressure Vessel Inspection  Institute，F(xiàn)uzhou 350008， Fujian， China ）

Abstract： During the magnetic particle testing process of a boiler， multiple dense cracks were found. In the main steam valve. This article analyzes the micro formation reasons of cracks through physical and chemical analysis. Drawing from this analysis， the study offers practical and reasonable recommendations for addressing these cracks and preventing future occurrences.

Key Words：  Boiler; Cracks; Main steam valve; Metallographic analysis; Hardness testing

Physicochemical Analysis and Recommendations for Addressing Cracks in the Main Steam Valve of a Boiler

MA Huohua

（ Fujian Boiler and Pressure Vessel Inspection  Institute，F(xiàn)uzhou 350008， Fujian， China ）

Abstract： During the magnetic particle testing process of a boiler， multiple dense cracks were found. In the main steam valve. This article analyzes the micro formation reasons of cracks through physical and chemical analysis. Drawing from this analysis， the study offers practical and reasonable recommendations for addressing these cracks and preventing future occurrences.

Key Words：  Boiler; Cracks; Main steam valve; Metallographic analysis; Hardness testing

0 引言

主汽閥是鍋爐的一個(gè)重要承壓部件，保障鍋爐在啟、停機(jī)過(guò)程中主蒸汽正常的通斷，若鍋爐主汽閥出現(xiàn)故障甚至裂紋泄露，輕則影響鍋爐啟機(jī)進(jìn)度，造成經(jīng)濟(jì)損失，重則無(wú)法保障鍋爐安全停機(jī)、泄露擴(kuò)展、甚至發(fā)生爆炸等重大安全事故。（剩余2284字）