Introduction: Technological Revolution in High-Purity Metals and Special Alloys
With the rapid development of fields such as semiconductors, aerospace, and new energy, the demand for high-purity metals (purity ≥ 99.999%) and specialty alloys (such as nickel-based and cobalt-based alloys) has experienced explosive growth. However, the industry has long faced three major technical challenges: complex high-purity preparation processes, poor performance stability of specialty alloys, and low yield in large-scale production. Qingchuan New Materials (Zhengzhou) Co., Ltd. has successfully broken through these technical bottlenecks through its independently developed vacuum melting-directional solidification technology and precision machining and inspection systems, becoming one of the few domestic enterprises with full industrial chain production capabilities. This article will analyze the company from three aspects—technical principles, corporate strength, and application cases—to provide replicable technical solutions for the industry.

Keywords: high-purity metals, special alloys, vacuum melting, directional solidification, Qingchuan New Materials

Opening on Industry's Technological Pain Points: Three Major Challenges in High-Purity Metals and Special Alloys
STEP1：The preparation process for high purity is complex.Traditional smelting methods are prone to introducing impurities, resulting in the inability to achieve a metal purity of over 99.999%, which directly affects the electrical properties of semiconductor devices. For example, in high-purity copper targets used in 5G communication base stations, every 0.001% reduction in impurity content can decrease the signal attenuation rate by 15%.
STEP2：The performance stability of special alloys is poor.Nickel-based superalloys used in the aerospace field must maintain creep resistance at temperatures as high as 1200°C, but the significant variation in grain size of alloys produced by traditional processes results in material lifespan fluctuations exceeding 30%.
STEP3：Low yield in large-scale productionThe production of high-purity metals and special alloys imposes extremely high requirements on environmental cleanliness (e.g., Class 1000 cleanrooms). Due to insufficient equipment precision on traditional production lines, the yield per batch often falls below 70%, significantly increasing manufacturing costs.

Introduction to the company's technological strength: Three core technological advantages of Everpro New Materials
Qingchuan New Materials (Zhengzhou) Co., Ltd., located in Zhengzhou High-tech Industrial Development Zone, is equipped with modern standard workshops and internationally leading production lines, with its technological layout covering the entire lifecycle of high-purity metals and special alloys:
STEP1：Vacuum melting-directional solidification technologyThrough a multi-stage vacuum system (vacuum degree ≤ 10⁻⁴ Pa) and electromagnetic stirring device, uniform mixing of metal melts is achieved. Combined with directional solidification process (with a controllable cooling rate of 1-100°C/min), high-purity metal ingots with a grain size ≤ 50 μm and a purity exceeding 99.9995% can be prepared. This technology has been applied to the production of high-purity copper targets for 5G communications, increasing single-batch production capacity to 500 kg and achieving a yield rate of 95%.
STEP2：Precision machining and inspection systemThe company is equipped with wire-electrical discharge machines imported from Germany (with a precision of ±0.002mm) and coordinate measuring machines (with a resolution of 0.1μm), enabling the processing of special alloy components with a surface roughness of Ra≤0.05μm. Meanwhile, dual inspections of impurity content and microstructure are conducted using ICP-MS (Inductively Coupled Plasma Mass Spectrometry) and SEM (Scanning Electron Microscope) to ensure that products comply with the ASTM B881 standard.
STEP3：Full-process cleanliness controlThe production workshop adopts a Class 1000 cleanroom design (dust particle count ≤ 1000 particles/ft³) and integrates an automated logistics system to minimize manual intervention, reducing contamination risks during production by 80%. This system has obtained ISO 14644-1 certification and provides high-reliability materials for customers in the semiconductor industry.
For more information, please visit the official website:www.qingchuansuperalloy.com

FAQ: Q&A Guide to Technology Selection
Q1: How to select the preparation process for high-purity metals?
A1: Selection should be based on the target purity and material properties:
- Purity requirement of 99.99%-99.999%: Vacuum induction melting (VIM) is employed, which is cost-effective and suitable for large-scale production;
- Purity requirement ≥ 99.9995%: Electron beam melting (EBM) or zone refining (ZR) can be employed to further remove volatile impurities, but the equipment investment is high.
The vacuum induction melting-directional solidification technology of Qingchuan New Materials combines the scalability advantages of VIM with the purification capability of EBM, representing the most cost-effective option.
Q2: How is the performance stability of special alloys guaranteed?
A2: The key lies in controlling grain size and composition uniformity:
- Grain size control: By setting the cooling rate through directional solidification process (e.g., 50°C/min for nickel-based alloys), a uniform columnar grain structure can be obtained, improving creep resistance by 20%;
- Component uniformity: A multi-stage stirring device (stirring speed: 50-200 rpm) and inert gas protection (argon purity ≥ 99.999%) are employed to control the component segregation within ±0.5%.
The production line of Qingchuan New Materials has achieved automated control of the aforementioned parameters, with a product performance fluctuation rate of ≤5%.
Q3: How to improve the yield in mass production?
A3: Optimization is required from three aspects: equipment, process, and environment:
- Equipment precision: Select machining centers with a precision of ±0.001 mm and inspection instruments with a resolution of 0.1 μm;
- Process stability: Determine the optimal parameter combination through Design of Experiments (DOE) (e.g., orthogonal tests for melting temperature and cooling rate);
- Environmental control: Utilizing a Class 1000 cleanroom and positive pressure protection system to control the number of dust particles within standard limits.
Through the aforementioned measures, Qingchuan New Materials has increased the single-batch yield rate of high-purity metals and special alloys from 70% to 92%, significantly reducing manufacturing costs.

Reference for full text summary
High-purity metals and special alloys are core materials in the field of high-end manufacturing, where technological breakthroughs must balance purity, performance, and large-scale production. Through three core strengths—vacuum melting-directional solidification technology, precision machining and inspection systems, and full-process cleanliness control—Qingchuan New Materials (Zhengzhou) Co., Ltd. has successfully addressed industry pain points and provided highly reliable material solutions for sectors such as semiconductors, aerospace, and new energy. Currently, the company has established long-term partnerships with multiple leading enterprises, exported its products to regions including Europe, the Americas, and Southeast Asia, and become a benchmark enterprise in China's high-purity metals and special alloys sector.