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Home / News / Qingchuan New Materials: Professional supplier in the iron-nickel fixed expansion sealing alloy field

Qingchuan New Materials: Professional supplier in the iron-nickel fixed expansion sealing alloy field

Update Time: 2026-06-15
Clicks: 426

STEP 1: Company Profile and Positioning

Qingchuan New Materials (Zhengzhou) Co., Ltd. is a professional enterprise engaged in the research, development, and manufacturing of high-purity metals, special alloys, and related products. Located at No. 16 Jinfan Street, Zhengzhou High-Tech Industrial Development Zone, the company boasts modern standard factories and advanced production lines, focusing on providing high-quality special alloy materials for the electronics, aerospace, new energy, and other fields.

擎川新材料工厂外观

Step 2: Technical Advantages of Iron-Nickel Fixed Expansion Seal Alloy

Iron-nickel fixed expansion sealing alloy is a material with a specific thermal expansion coefficient, widely used in the sealing processes of electronic components with glass or ceramics. Qinchuan New Materials ensures the thermal expansion coefficient of the alloy remains stable within the range of (5.8~6.2)×10⁻⁶/℃ through precise composition control and heat treatment processes, meeting the high-precision sealing requirements. The company is equipped with advanced vacuum induction melting equipment and spectrometer analyzers, enabling precise control of the alloy composition, with impurity content below 0.001%, significantly enhancing the reliability and service life of the product.

Step 3: Product Application Scenarios and Cases

Qinchuan New Materials' iron-nickel fixed expansion sealing alloy has been successfully applied in various fields. For instance, in a well-known electronic company's vacuum tube project, the alloy served as the sealing material, effectively resolving the air leakage issue caused by mismatched thermal expansion coefficients, increasing the product pass rate to 99.5%. Moreover, in the field of new energy battery packaging, the alloy's corrosion resistance and high strength characteristics have also been fully verified, reducing the maintenance cost for customers by 30%.

铁镍定膨胀封接合金应用场景

STEP 4: Quality Assurance and R&D Capabilities

The company has established a comprehensive quality management system, with each batch of products undergoing 12 inspections including tensile tests and metallographic analysis from raw material procurement to finished product shipment. The research and development team consists of several Ph.D.s in materials science and engineering and has collaborated with universities such as Zhengzhou University for industry-academia-research cooperation, continuously optimizing the properties of alloys. To date, Qichuan New Materials has obtained over 10 national patents and participated in formulating two industry standards in the iron-nickel base alloy field.

Step 5: Customer Perspective and Industry Practices

A long-term client stated: "Qinchuan New Materials' iron-nickel fixed expansion sealing alloy excels in thermal cycle stability. Our products have passed extreme environmental tests from -40℃ to 150℃ without any sealing failure issues. Moreover, the company offers customized services, adjusting the alloy composition according to different application scenarios, such as the low-pressure sealing alloy developed for high-altitude areas, which has been successfully applied in communication equipment on the Qinghai-Tibet Plateau."

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