霸刀分享-钨材料在高端制造中的应用
随着高端制造业对材料性能要求日益严苛，钨材料凭借其高熔点、高密度、高强度和优异的抗辐照性能，成为航空航天、核聚变、半导体等高端制造领域的关键战略材料，相关技术正加速向精细化、复合化与增材制造方向演进。
中国在钨基复合材料、回收技术、3D打印及核聚变应用等方面取得显著突破，推动钨产业从资源主导转向技术驱动。在核聚变领域，钨因高熔点和低溅射率成为面向等离子体的首选材料。中南大学、中钨高新采用纳米/微纳复合增强+梯度扩散连接技术，使全钨偏滤器抗热冲击性提升50%；中钨高新、安泰科技的钨铜复合部件抗中子辐照能力提升3倍，良率超98%，实现零缺陷制造；厦门钨业的ITER朗缪尔探针成功通过法国最终设计评审，具备商业化反应堆长期服役能力。一座商业化核聚变反应堆40年预计消耗约2.9万吨钨，市场潜力巨大。
在航空航天与军工领域，钨合金凭借高密度在航天发动机、穿甲弹、卫星配重等方面实现能量集中或质量优化。如采用液相烧结法制备的钨镍铁合金用于动能穿甲弹，利用高密度特性穿透装甲；钨合金机床配重保证高重量同时体积最小化，提升高端数控机床稳定性与精度；通过微米 - 纳米原位复合理论，成功研制600×800mm以上大尺寸钨坩埚和超大隔热屏。
半导体与电子领域，超高纯度钨粉和细丝发挥关键作用。再生高纯钨粉用于12英寸晶圆的钨栓塞工艺，满足纳米级线宽要求；光伏钨丝线径可至35μm，强度超5000MPa，直通率突破85%，替代碳钢丝用于高效太阳能电池切割；高纯钨丝用作扫描电镜、X射线管的热离子发射体。
增材制造方面，传统工艺难加工的复杂钨零件可通过3D打印解决。激光选区熔化可制备多孔、镂空结构件，但易出现微裂纹；粉末挤出打印适合复杂一体化结构，升华三维攻克钨合金3D打印难点，支持点阵、拓扑优化设计。
资源循环领域，面对原生矿品位下降与环保压力，再生钨技术快速发展。溶胶凝胶法回收将废旧硬质合金转化为纳米级高纯钨氧化物，回收效率提升95%以上，能耗降低80%；尾矿综合回收通过溶胶凝胶辅助浮选，使黑钨矿尾矿回收率从不足50%提升至92%；《再生钨原料》行业标准于2025年7月实施，规范再生料质量管控。
总体而言，中国已在核聚变钨组件、高纯再生钨、3D打印成形等高端领域形成技术领先优势，产业链正由“资源输出”向“技术溢价”转型。未来，商业航天、可控核聚变工程化以及半导体国产替代的持续推进将成为钨材料产业增长的驱动力。
Can tungsten materials lead to new changes in high-end manufacturing?
as the requirements for material performance in high-end manufacturing have become increasingly stringent, tungsten materials, with their high melting point, high density, high strength, and excellent radiation resistance, have become key strategic materials in high-end manufacturing fields such as aerospace, nuclear fusion, and semiconductor technology. The related technologies are accelerating their evolution towards refinement, compounding, and additive manufacturing.
China has made significant breakthroughs in tungsten-based composite materials, recycling technology, 3D printing, and nuclear fusion applications, promoting the transformation of the tungsten industry from resource-driven to technology-driven. In the field of nuclear fusion, tungsten, due to its high melting point and low sputtering rate, has become the preferred material for plasma. Central South University and China Tungsten High-Tech have adopted nano/micron composite reinforcement + gradient diffusion connection technology, increasing the thermal shock resistance of the all-tungsten filter by 50%; China Tungsten High-Tech and Antai Technology have improved the neutron irradiation resistance of tungsten-copper composite components by three times, with a yield exceeding 98%, achieving zero-defect manufacturing; Xiamen Tungsten Industry's ITER Langmuir probe successfully passed the final design review in France and has the capability for long-term service in commercial reactors. A commercial nuclear fusion reactor is expected to consume approximately 2.9 thousand tons of tungsten over 40 years, presenting a huge market potential.
In the aerospace and military fields, tungsten alloys have achieved energy concentration or quality optimization in aerospace engines, armor-piercing bullets, and satellite counterweights due to their high density. For example, tungsten-nickel-iron alloys prepared by liquid phase sintering are used in kinetic armor-piercing bullets, utilizing their high density for armor penetration; tungsten alloy machine tool counterweights ensure high weight while minimizing volume, enhancing the stability and accuracy of high-end CNC machines; through the micro-nanometer in-situ recombination theory, large-sized tungsten crucibles and ultra-large heat insulation screens of 600×800mm and above have been successfully developed.
In the semiconductor and electronics field, ultra-high purity tungsten powder and wires play a crucial role. Recycled high-purity tungsten powder is used in the tungsten plug process for 12-inch wafers to meet nanoscale linewidth requirements; tungsten wire for photovoltaic applications has a diameter of up to 35 μm, with a strength exceeding 5000 MPa, a through-rate exceeding 85%, and achieving zero-defect manufacturing; Xiamen Tungsten Industry's ITER Langmuir probe successfully passed the final design review in France, possessing the capability for long-term service in commercial reactors. A commercial nuclear fusion reactor is expected to consume approximately 2.9 thousand tons of tungsten over 40 years, presenting a huge market potential.
In the aerospace and military fields, tungsten alloys have achieved energy concentration or quality optimization in aerospace engines, armor-piercing bullets, and satellite counterweights due to their high density. For example, tungsten-nickel-iron alloys prepared by liquid phase sintering are used in kinetic armor-piercing bullets, utilizing their high density for armor penetration; tungsten alloy machine tool counterweights ensure high weight while minimizing volume, enhancing the stability and accuracy of high-end CNC machines; through the micro-nanometer in-situ recombination theory, large-sized tungsten crucibles and ultra-large heat insulation screens of 600×800mm and above have been successfully developed.
In the semiconductor and electronics field, ultra-high purity tungsten powder and wires play a crucial role. Recycled high-purity tungsten powder is used in the tungsten plug process for 12-inch wafers to meet nanoscale linewidth requirements; tungsten wire for photovoltaic applications has a diameter of up to 35 μm, with a strength exceeding 5000 MPa, a through-rate exceeding 85%, and replacing carbon steel wires for efficient solar cell cutting; high-purity tungsten wires are used as thermal ion emitters in scanning electron microscopes and X-ray tubes.
In additive manufacturing, complex tungsten parts that are difficult to process using traditional methods can be solved through 3D printing. Laser selective melting can produce porous and hollow structural components, but it is prone to micro-cracks; powder extrusion printing is suitable for complex integrated structures, and sublimation 3D printing overcomes the difficulties in 3D printing of tungsten alloys, supporting lattice and topology optimization design.