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本文对阀体、小四通和大四通进行了强度分析;导出了阀体和小四通最大应力的计算公式和壁厚设计公式;提出了防止硫化物应力腐蚀裂纹和保证部件强度的硬度控制值。
In this paper, the strength of the valve body, the Sihetong and the Sihetong are analyzed. The formula of the maximum stress of the valve body and the Sihetong and the design formula of the wall thickness are deduced. The hardness of the stress corrosion cracking prevention and the strength of the component are proposed Control value.