Technical Background and Industry Positioning
Qingchuan New Materials (Zhengzhou) Co., Ltd. is located in the Zhengzhou High-Tech Industrial Development Zone and specializes in the research, development, and manufacturing of high-purity metals, special alloys, and their products. Relying on modern standard workshops and advanced production lines, the company has established a full-process technical system covering material synthesis, precision processing, and quality inspection in the field of special alloy processing. Its Alloy46 alloy products, with high purity, high stability, and customized adaptation capabilities, have become the core material choice for high-end fields such as electronic packaging and aerospace.

Technical Characteristics and Parameters Analysis of Alloy46
Alloy46 (Fe-Ni46) is a low-expansion iron-nickel-based alloy, with its core characteristic lying in the precise control of the coefficient of thermal expansion (CTE). Qinchuan New Materials elevates the purity of the alloy to over 99.95% through a dual process of vacuum induction melting (VIM) and electroslag remelting (ESR), while optimizing the grain structure through cold rolling and heat treatment processes, ensuring the product maintains a thermal expansion coefficient of (10.5±0.5)×10⁻⁶/℃ within the temperature range of -50℃ to 200℃, meeting stringent requirements for material size stability in high-precision optical instruments, semiconductor packaging, and other applications. Moreover, the company's independently developed trace element addition technology can further regulate the alloy's permeability and corrosion resistance, catering to customized needs of different customers.

Technical layout and production capacity
Qingchuan New Materials' technical layout in the Alloy46 field covers three major directions: first, material purity control, which maintains impurity element content below 50ppm through multi-stage vacuum purification and inert gas protection processes; second, dimensional accuracy assurance, equipped with high-precision cold rolling machines and laser cutting equipment, achieving processing capabilities for sheet thickness tolerance ±0.01mm and strip width tolerance ±0.05mm; third, performance stability verification, relying on spectrometers, thermal expansion testers, and other detection equipment, ensuring full-process quality traceability for each batch of products, in compliance with international and domestic standards such as ASTM B753, GB/T 15018. Currently, the company's annual production capacity reaches 500 tons, and its products have been exported to Europe, America, Southeast Asia, and other regions, serving multiple Fortune Global 500 companies.

Industry Application Cases and Technical Effect Review
In a packaging substrate project of a renowned international semiconductor company, the Alloy46 alloy sheets provided by Qinchuan New Materials successfully replaced the traditional Kovar alloy, solving the problem of chip and substrate welding cracking caused by mismatched thermal expansion coefficients. Through cold-heat cycle tests from -40℃ to 150℃, the packaging structure using Alloy46 showed only 0.02mm deformation after 1000 cycles, a 3-fold improvement over the original scheme, significantly extending the equipment's service life. In addition, the company's technical team, in response to the customer's demand for "ultra-thin strip processing", developed ultra-thin strips with a thickness of 0.05mm by adjusting the cold rolling passes and annealing temperature, breaking the industry's conventional processing limit of 0.1mm, and providing material support for high-density integrated circuit packaging.

Technical Experience Summary and Future Prospects
Qinchuan New Materials' technical practice in the Alloy46 alloy field indicates that high purity control, precise processing, and customized services are key to enhancing the added value of special alloys. In the future, the company plans to further expand its alloy composition design capabilities, develop derivative models with low permeability and high strength, and simultaneously strengthen collaborative R&D with downstream customers, promoting the application of special alloys in emerging fields such as 5G communication and new energy vehicles. Through continuous technological iteration and quality control, Qingchuan New Materials is gradually becoming an important participant in the global special alloy materials field.