Transactions of Materials and Heat Treatment

Title：Hot extrusion forming process of large-size copper-nickel alloy flange

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ClassificationCode：TG146.1

year,vol(issue):pagenumber：2023,48(4):169-175

Abstract：

The traditional large-size flanges are usually produced by the process of “forging+maching”, and the forging loss is relatively large. In order to ensure the quality of finished flange, it is necessary to increase the processing allowance which will lead to lower material utilization. Aiming at this problem, for DN700 large-size copper-nickel alloy flange, its product structure and forming process were analyzed, and the forming process of DN700 large-size flange was simulated and analyzed by finite element analysis software. Then, the existing production process was improved, and the matched forming mold was designed and made. The experimental verification results show that the trial production of new process of DN700 large-size flange is completed, and the samples with the tensile strength greater than 280 MPa, the yield strength greater than 105 MPa and the elongation greater than 30% are obtained. Thus, the extrusion forming process is used to form DN700 large-size copper-nickel alloy flanges, which greatly reduces the production cost of product and improves the utilization rate of material.

Funds：

国家重点研发计划资助项目（2021YFB3700700）

作者简介：付利国(1979-)，男，学士，高级工程师 E-mail：1139591076@qq.com 通信作者：周铁柱(1989-)，男，硕士，工程师 E-mail：aaronchow@163.com

Reference：

［1］张智强，郭泽亮，雷竹芳.铜合金在舰船上的应用
［J］.材料开发与应用,2006,21(5):43-46.

Zhang Z Q，Guo Z L，Lei Z F. Applications of copper alloy in shipbuilding
［J］. Development and Application of Materials, 2006, 21(5):43-46.

［2］周铁柱，马艳霞，蒋鹏，等. 铜合金弯头冷推成形影响因素分析及工艺参数优化
［J］.材料开发与应用,2018,33(2): 38-46.

Zhou T Z, Ma Y X, Jiang P, et al. Influencing factors and parameters optimization of cold push-bending for copper alloy elbow
［J］.Development and Application of Materials,2018, 33(2):38-46.

［3］梁晨，周铁柱，刘乐乐，等. 铜镍合金三通内高压成形工艺优化探究
［J］.材料开发与应用,2018,33(5):74-79.

Liang C, Zhou T Z, Liu L L, et al．Research on the optimization of internal pressure forming process for copper-nickel alloy tee
［J］. Development and Application of Materials, 2018, 33(5):74-79.

［4］史冰绡, 谭振江,曹东东，等.晶粒取向对铜镍合金腐蚀形貌的影响
［J］.中国有色金属学报,2022,32(4):1025-1035.

Shi B X, Tan Z J,Cao D D, et al. Effect of grain orientation on corrosion morphology of copper-nickel alloy
［J］.The Chinese Journal of Nonferrous Metals，2022,32(4):1025-1035.

［5］宋翼, 陈守刚.温度对厌氧环境中硫酸盐还原菌所致铜镍合金腐蚀行为的影响
［J］.表面技术,2022,51(3):95-102.

Song Y，Chen S G. Effect of temperature on corrosion behavior of copper-nickel alloys by sulphate-reducing bacteria in anaerobic environment
［J］.Surface Technology，2022，51(3):95-102.

［6］金城焱, 杜兴蒿,闫霏，等.铜镍合金的强韧化行为及其微观机制的研究进展
［J］.材料导报,2021,35(Z2):372-375,380.

Jin C Y，Du X H, Yan F, et al. Research progress on strengthening-toughening behavior and the associated mechanisms of Cu-Ni alloys
［J］.Materials Review, 2021, 35(Z2):372-375,380.

［7］常钦鹏, 陈友媛,安振东,等.B30铜镍合金表面植酸转化膜的制备工艺研究
［J］.材料导报,2019,33(23):3876-3881.

Chang Q P, Chen Y Y, An Z D, et al. Preparation process of physic acid conversion film on B30 Cu-Ni alloy
［J］. Materials Review, 2019,33(23):3876-3881.

［8］高鑫, 武会宾,刘明,等.多道次轧制不同变形量对铜镍合金管材组织和性能的影响
［J］.稀有金属材料与工程,2021,50(11):3819-3823.

Gao X, Wu H B, Liu M, et al. Effect of deformation of multi-pass rolling on microstructure and properties of C71500 cupronickel alloy tube
［J］.Rare Metal Materials and Engineering, 2021, 50(11):3819-3823.

［9］赵月红, 林乐耘,崔大为,等.铜镍合金在我国实海海域的局部腐蚀
［J］.中国有色金属学报,2005,15(11):1786-1794.

Zhao Y H, Lin L G, Cui D W, et al. Localized corrosion of Cu-Ni alloy in China marine
［J］. The Chinese Journal of Nonferrous Metals, 2005, 15(11):1786-1794.

［10］王家明, 杨昊东,杜敏,等.B10铜镍合金在高浓度NH4+污染海水中腐蚀研究
［J］.中国腐蚀与防护学报,2021,41(5):609-616.

Wang J M, Yang H D, Du M, et al. Corrosion of B10 Cu-Ni alloy in seawater polluted by high concentration of NH4+
［J］.Journal of Chinese Society for Corrosion and Protection, 2021, 41(5):609-616.

［11］石常亮, 张欣,李扬,等.船舶冷却系统铜镍合金管腐蚀穿孔原因
［J］.理化检验：物理分册,2022,58(2):53-57.

Shi C L, Zhang X, Li Y, et al. Causes of corrosion perforation of copper-nickel alloy tube in ship cooling system
［J］.Physical Testing and Chemical Analysis Part A: Physical Testing，2022, 58(2):53-57.

［12］程德彬, 郭悦,刘雪辉，等.B30铜镍合金换热管腐蚀与防护研究进展
［J］.材料开发与应用,2020,35(1):84-90.

Cheng D B,Guo Y, Liu X H, et al. Studies on corrosion and protection of heat exchange tubes of B30 copper-nickel alloy
［J］.Development and Application of Materials，2020, 35(1):84-90.

［13］邢少华, 杨光付,刘广义，等.90/10铜镍合金海水管路交流杂散电流腐蚀及控制研究
［J］.装备环境工程,2022,19(4):95-100.

Xing S H, Yang G F, Liu G Y, et al. AC stray current corrosion and control of 90/10 copper-nickel alloy seawater pipe
［J］.Equipment Environmental Engineering, 2022,19(4):95-100.

［14］左承坤, 蒯支明,胡安亚，等.铁含量对形变热处理B30铜镍合金电化学性能的影响
［J］.热处理技术与装备,2021,42(2):5-12.

Zuo C K, Kuai Z M, Hu A Y, et al. Effect of iron content on the electrochemical properties of B30 copper-nickel alloy after thermo mechanical treatment
［J］.Heat Treatment Technology and Equipment, 2021, 42(2):5-12.

［15］罗旭, 辛颉,李瑜，等.船舶海水管路腐蚀及修复技术研究进展
［J］.弹性体,2022,32(1):80-84.

Luo X，Xin X, Li Y, et al. Progress on corrosion and repair technology of marine seawater pipe
［J］.China Elastomerics, 2022, 32(1):80-84.

［16］王利, 蔺存国,苏艳，等.典型海域船舶用铜材表面生物污损与腐蚀性能研究
［J］.装备环境工程,2021,18(8):52-58.

Wang L, Lin C G, Su Y, et al. Study on the biological fouling and corrosion of copper surface in typical sea area
［J］.Equipment Environmental Engineering, 2021, 18(8):52-58.

［17］武兴伟, 聂垒鑫,吴恒，等.几种典型管路材料在流动海水中的冲刷腐蚀行为
［J］.材料保护,2021,54(5):7-12,23.

Wu X W, Nie L X, Wu H，et al. Erosion corrosion behavior of several typical pipeline materials in flowing seawater
［J］.Materials Protection，2021, 54(5):7-12, 23.

［18］彭文山, 段体岗,侯健，等.室内与实海环境中B10铜镍合金海水全浸腐蚀研究
［J］.装备环境工程,2020,17(8):63-69.

Peng W S, Duan T G, Hou J, et al. Corrosion behavior of B10 copper-nickel alloy after full immersion in indoor simulated seawater and real seawater
［J］.Equipment Environmental Engineering，2020, 17(8):63-69.

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