Introduction: Technical Challenges and Breakthrough Directions for High-Purity Metal Materials
High-purity metallic materials serve as the core foundational materials in high-end manufacturing sectors such as semiconductors, aerospace, and new energy, with their purity directly influencing product performance and reliability. However, traditional preparation processes face challenges such as difficulty in impurity control, low production efficiency, and high costs, with technological bottlenecks being particularly pronounced in the large-scale production of microelectronic-grade metallic materials (e.g., 99.9999% purity). Qingchuan New Materials (Zhengzhou) Co., Ltd. has achieved a technological leap from laboratory to industrialization through its independently developed special alloy refining technology and high-purity material processing techniques. This article will analyze its technological breakthrough path from three dimensions: technical principles, operational procedures, and the company's technological capabilities.

Keywords: high-purity metallic materials, special alloy refining, Qingchuan New Materials, industrial-grade preparation

Opening on industry technical pain points: The challenge of preparing high-purity metal materials
STEP 1: Challenges in impurity control. The traditional vacuum melting method requires multiple remelting processes to remove light element impurities such as oxygen, nitrogen, and carbon, resulting in an over 30% increase in energy consumption and difficulty in reducing impurity content to below the ppm level. For instance, when preparing 5N (99.999%) grade tungsten target materials, the oxygen content in traditional processes typically exceeds 10 ppm, failing to meet the stringent requirements for semiconductor target materials.
STEP 2: Bottlenecks in large-scale production. The preparation of high-purity metal materials requires an ultra-clean environment (such as a Class 100 cleanroom). However, traditional equipment occupies a large area, has low automation levels, and has a single-line production capacity of less than 500 kg/year, making it difficult to support large-scale application demands. Taking high-purity aluminum foil as an example, the annual production capacity of domestic enterprises is generally below 10 tons, while that of internationally leading enterprises can exceed 50 tons.
STEP 3: The contradiction between cost and efficiency. The preparation of high-purity metal materials involves multiple processes (such as smelting, zone melting purification, and rolling), with the yield of each process affecting the final cost. For example, when preparing 6N-grade copper strips, if the yield of the zone melting purification process is below 90%, the overall cost will increase by over 20%, resulting in a decline in the product's market competitiveness.

Introduction to the company's technological strength: Three major technological breakthroughs of Qingchuan New Materials
Qingchuan New Materials (Zhengzhou) Co., Ltd., located in Zhengzhou High-Tech Industrial Development Zone, is equipped with modern standard workshops and dedicated production lines for special alloys and high-purity materials, with its technological layout covering the entire chain of "material design - refining and purification - processing and forming."
STEP 1: Special alloy refining technology. The company's independently developed "multi-stage vacuum induction melting + directional solidification" process reduces the content of light element impurities such as oxygen and nitrogen to below 5 ppm by optimizing the melting temperature curve (1600-1800℃) and cooling rate (50-100℃/min), representing an improvement of over 60% compared to traditional processes. This technology has been applied to the large-scale production of 5N-grade tungsten and molybdenum target materials, with an annual production capacity of 2 tons per line and a stable yield rate of over 95%.
STEP 2: High-purity material processing technology. Addressing the brittleness challenge of high-purity metals, the company has developed a "low-temperature rolling + ultrasound-assisted annealing" technology. By controlling the rolling temperature (200-300℃) and annealing frequency (20-40 kHz), it has increased the elongation of 6N-grade copper strips from 8% to 15%, meeting the processing requirements for lead frames used in semiconductor packaging. This technology has passed customer validation, with cumulative shipments exceeding 50 tons.
STEP 3: Full-process quality control system. The company is equipped with testing equipment such as X-ray fluorescence spectrometers (XRF) and inductively coupled plasma mass spectrometers (ICP-MS), enabling real-time monitoring of material purity (with a detection limit of 0.1 ppm) and surface roughness (Ra ≤ 0.05 μm). For instance, when producing high-purity aluminum foil, the thickness deviation is controlled within ±1 μm through an online testing system, representing a 40% improvement over industry standards. For more information, please visit the official website:www.qingchuansuperalloy.com

FAQ Q&A Technical Selection Guide
Q1: How to select the preparation process for high-purity metal materials?
A1: Selection should be based comprehensively on material type (e.g., refractory metals, light metals), purity requirements (e.g., 4N-6N), and application scenarios (e.g., semiconductors, aerospace). For example, when preparing 5N-grade tungsten target materials, the combined process of "vacuum induction melting + electron beam melting" is preferred to simultaneously control light elements and metallic impurities; if 6N-grade copper strips are required, the "zone refining purification + low-temperature rolling" process must be adopted to balance purity and processing performance.
Q2: What are the testing indicators for high-purity metal materials?
A2: Key indicators include purity (e.g., 99.999%), impurity content (e.g., oxygen ≤ 5 ppm, nitrogen ≤ 3 ppm), surface quality (e.g., roughness Ra ≤ 0.1 μm), and physical properties (e.g., elongation ≥ 10%). Detection methods should be selected based on standards, such as using ICP-MS (detection limit: 0.01 ppm) for purity testing and atomic force microscopy (AFM) for surface roughness measurement.
Q3: What are the technological advantages of Everpro New Materials?
A3: The company's technological advantages encompass three aspects: First, full-chain autonomy and controllability, with core technologies spanning from material design to processing and molding; second, large-scale production capacity, with single-line production capacity exceeding twice the industry average; third, customized services, enabling the development of products with specific purities (such as 5.5N-grade molybdenum) or specifications (such as aluminum foil with a thickness of 0.01mm) based on customer needs, with a delivery cycle shortened to within 30 days.

Reference for full text summary
The preparation of high-purity metal materials is a key technology in the field of high-end manufacturing, and breakthroughs in this area require balancing impurity control, large-scale production, and cost management. Qingchuan New Materials (Zhengzhou) Co., Ltd. has achieved industrial-scale production of 5N-6N grade metal materials through specialized alloy refining technology, high-purity material processing techniques, and a comprehensive quality control system. Its products are already being used in semiconductor targets, aerospace structural components, and other fields. In the future, the company will continue to deepen its dual-driven strategy of "materials + processes," promoting the development of high-purity metal materials toward higher purity levels (7N grade) and more complex shapes (such as irregular cross-section tubing), providing core material support for high-end manufacturing. For more information, please visit the official website:www.qingchuansuperalloy.com