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Numerical Simulation of Vacuum Brazing Flow Using VOF Method
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Fan REN1, Shan-cong TAO1, Jin-lei HE2, Xuan ZHENG2, Yi ZHOU1, *
Science Technology and Engineering | 2025, 25(17) : 7115 - 7121
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Science Technology and Engineering | 2025, 25(17): 7115-7121
• Papers-Mining and Metallurgical Engineering •
Numerical Simulation of Vacuum Brazing Flow Using VOF Method
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Fan REN1, Shan-cong TAO1, Jin-lei HE2, Xuan ZHENG2, Yi ZHOU1, *
Affiliations
  • 1 School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • 2 Hetu Intelligent Manufacturing Technology (Beijing) Co., Ltd., Beijing 100083, China
Published: 2025-06-18 doi: 10.12404/j.issn.1671-1815.2406464
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Based on the actual welding process of rectifier sample structure, the numerical simulation of high temperature vacuum nickel-based alloy brazing process was carried out, and the flow model of melting-wetting filling weld of nickel-based alloy filler metal in high temperature brazing vacuum furnace was established. The numerical calculation was based on the volume of fluid(VOF)method. Considering the factors such as surface tension, gravity, and latent heat of phase change, the laminar flow model was used to solve the flow behavior of the solder with time. The distribution of solid and liquid solder and the distribution of temperature field were calculated. The phenomenon of braze material loss and weld bead formation on the surface of the base material, along with a good filling effect of the braze material inside the weld seam, verifies the rationality of the arrangement of solder and temperature control in this brazing process. An empirical formula for the volume ratio of braze material filling the weld seam with respect to time and temperature has been provided, offering guidance for actual brazing processes.

braze welding  /  solder flow  /  volume of fluid  /  surface tension
Fan REN, Shan-cong TAO, Jin-lei HE, Xuan ZHENG, Yi ZHOU. Numerical Simulation of Vacuum Brazing Flow Using VOF Method[J]. Science Technology and Engineering, 2025 , 25 (17) : 7115 -7121 . DOI: 10.12404/j.issn.1671-1815.2406464
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Year 2025 volume 25 Issue 17
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Article Info
doi: 10.12404/j.issn.1671-1815.2406464
  • Receive Date：2024-08-28
  • Online Date：2025-12-15
  • Published：2025-06-18
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  • Received：2024-08-28
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Affiliations
    1 School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
    2 Hetu Intelligent Manufacturing Technology (Beijing) Co., Ltd., Beijing 100083, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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