山东青岛地铁1号线今年1月上线了"CETROVO1.0 碳星快轨"地铁列车（以下简称"碳星快轨"）。碳星快 轨首次采用碳纤维复合材料作为车体和转向架构架等主承载结构的主要材料，是全球首列实现工程化应 用、商业化运营的碳纤维地铁车辆。 数据能更好说明成果：减重11%，运行能耗降低7%，每列列车每年大约能减少130吨二氧化碳排放；行 驶过程中，曲线通过噪声降低15分贝，车内噪声也能降低2分贝以上；全寿命周期检修成本降低 22%…… 碳星快轨如何实现这些出色的性能？ 凭借碳纤维一体化设计技术、碳纤维成型制造能力等方面的突破，碳星快轨成为安全、节能、舒适且低 成本的新一代轨道交通车辆。碳星快轨成功上线运营，是轨道交通领域的一次巨大创新，预示着未来轨 道交通车辆将朝着更环保、更智能的方向迈进。 （作者为中车四方股份公司主任设计师，本报记者侯琳良采访整理） 《 人民日报 》（ 2025年05月24日 05 版） (责编：岳弘彬、牛镛) 以往列车的主承载结构，大多使用金属材料，重且不够灵活。碳星快轨采用碳纤维一体化设计技术，把 各部分结合成一个整体，像是给列车打造了一副轻盈又坚固的"超级骨架"。打个比方，以前的列车像是 用 ...

Financial Performance - In 2024, the company achieved a revenue of CNY 2.45 billion, a decrease of 2.69% year-on-year [2] - Net profit attributable to shareholders was CNY 741 million, down 15.12% year-on-year [2] - The return on equity (ROE) was 13.50%, a decline of 3.50 percentage points compared to the previous year [2] Segment Performance - Carbon fiber segment revenue was CNY 1.45 billion, down 12.91% year-on-year [3] - General new materials segment revenue was CNY 234 million, down 12.86% year-on-year [3] - Energy new materials segment revenue increased by 25.81% to CNY 537 million [3] - Composite technology segment revenue grew by 15.60% to CNY 107 million [3] - Precision machinery segment revenue rose by 161.20% to CNY 89 million [3] - Light technology segment revenue increased by 28.27% to CNY 25 million [3] Market Challenges - The decline in performance was primarily due to a downturn in the carbon fiber and prepreg sectors, with a notable drop in demand for T300 grade fibers [3] - The T300 fiber segment saw a revenue decrease of 39.4%, totaling CNY 516 million [3] - The market price for high-performance industrial carbon fibers dropped significantly, impacting revenue [3] Strategic Initiatives - The company is focusing on high-end applications and continuous product innovation to meet emerging market needs [2] - A total of 169 new patents were achieved in 2024, reflecting ongoing R&D efforts [3] - The company is expanding its applications in various sectors, including aerospace, automotive, and renewable energy [6] Future Outlook - The carbon beam business is expected to see a recovery in 2025, driven by existing orders [11] - The company anticipates stable demand for T300 grade products in the coming years [7] - The Bagou project is projected to incur losses in 2025 due to high fixed costs from initial investments [12] Customer and Contract Insights - The company is actively negotiating contracts for the CCF700G product, with ongoing supply [4] - The delivery pace for traditional products is expected to improve in 2025 [4] - The company has secured contracts for T800 grade fibers, with a focus on stable supply for large aircraft applications [5]