Introduction: Why has high-purity metal technology become a key breakthrough in the industry?
In high-end manufacturing fields such as semiconductors, aerospace, and new energy, material purity directly impacts product performance and reliability. According to statistics, a one-order-of-magnitude reduction in metal impurity content can decrease leakage current in semiconductor devices by over 30% and double the fatigue life of specialty alloys. Leveraging its independently developed high-purity metal purification technology and precision processing capabilities for specialty alloys, Qingchuan New Materials (Zhengzhou) Co., Ltd. has successfully broken foreign technological monopolies, providing critical material support for domestic high-end manufacturing enterprises. This article will analyze its technological breakthrough path from three dimensions: technical principles, operational parameters, and case reviews.

Keywords: high-purity metals, special alloys, precision machining, full-process inspection, industry pain points

Opening on Industry Technical Pain Points: Three Core Challenges of Traditional Processes
Currently, the production of high-purity metals and special alloys faces three major technological bottlenecks:
STEP 1: Low purification efficiencyTraditional chemical purification methods require multiple cycles of processing, with a single-batch production cycle lasting up to 72 hours and a metal recovery rate of less than 85%, resulting in persistently high costs. For instance, a semiconductor company's procurement of 5N (99.999%) grade tungsten target materials suffered from excessive impurity levels (0.0005% above standard) due to outdated purification processes, directly causing a 15% decline in chip yield.
STEP 2: Insufficient processing accuracyThe microstructural homogeneity of special alloys directly affects material properties. Conventional forging processes struggle to control grain size deviations, resulting in a tensile strength fluctuation range of ±20 MPa for products within the same batch, which fails to meet the stringent requirements for material consistency in the aerospace field.
STEP 3: Outdated detection methodsMost domestic enterprises still use spectral analyzers for composition testing, with detection accuracy only reaching the ppm level (parts per million), while the high-end manufacturing sector now demands ppb-level (parts per billion) detection capabilities. Product rework rates due to detection errors are as high as 12%, severely constraining production efficiency.

Introduction to the company's technological capabilities: Breakthroughs across the entire chain from R&D to mass production
Qingchuan New Materials (Zhengzhou) Co., Ltd. is located in the Zhengzhou High-Tech Industrial Development Zone and boasts modern standard factory buildings and internationally leading production lines for special alloys. Its technological advantages are embodied in three core aspects:
STEP 1: Molecular-level purification technologyThe self-developed combined process of "multi-stage vacuum distillation + ion exchange" by the company can control the metal impurity content at the ppb level. Taking 6N (99.9999%) grade titanium as an example, its oxygen content is ≤10 ppm and nitrogen content is ≤5 ppm, reaching the international advanced level. This process has a single-batch processing capacity of up to 500 kg, shortens the production cycle to 24 hours, and increases the metal recovery rate to 92%.
STEP 2: Nanoscale precision machiningThe introduction of a German five-axis simultaneous machining center, combined with the independently developed "low-temperature isostatic pressing + ultra-precision grinding" process, enables the dimensional tolerance of special alloy parts to be controlled within ±1μm. For instance, the customized turbine disk for an aerospace enterprise features a surface roughness of Ra ≤ 0.2μm and a 40% improvement in fatigue resistance compared to traditional processes.
STEP 3: Full-process Quality ControlThe company is equipped with high-end testing instruments such as Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Electron Probe Microanalyzer (EPMA), and has established 23 testing procedures from raw material warehousing to finished product delivery. Notably, the ICP-MS has a detection limit as low as 0.1 ppb, enabling precise identification of trace impurity elements. The company has obtained ISO 9001:2015 quality management system certification, with a stable product qualification rate exceeding 99.6%.
Technical Case: Domestic Substitution of Semiconductor Target Materials
In 2023, a leading domestic semiconductor enterprise faced the risk of supply disruption of 6N-grade tantalum sputtering targets. Through three months of technological breakthroughs, Qingchuan New Materials successfully controlled the impurity content of tantalum sputtering targets to within 0.5 ppb by adopting a composite purification process combining "electron beam melting + zone refining," and achieved a grain size uniformity (ASTM E112 standard) of Grade 5. After applying these sputtering targets in the manufacturing of 12-inch wafers, the chip yield increased from 82% to 89%, and the cost per wafer decreased by 18%. Currently, the company has delivered over 20 tons of semiconductor sputtering targets, covering cutting-edge fields such as 5G communication and artificial intelligence.
For more information, please visit the official website:www.qingchuansuperalloy.com

FAQ: Q&A Guide to Technology Selection
Q1: How to select the purification process for high-purity metals?
A: It is necessary to comprehensively consider the type of metal, target purity, and cost. For example, for volatile metals (such as zinc and magnesium), vacuum distillation is more efficient; whereas for non-volatile metals (such as titanium and tungsten), ion exchange can achieve deeper purification. Qinchuan New Materials can customize a combined "chemical purification + physical purification" solution according to customer needs, reducing purification costs by 30%.
Q2: How to control grain size in the processing of special alloys?
A: Grain size is influenced by three key factors: heating temperature, deformation amount, and cooling rate. Taking nickel-based superalloys as an example, Qingchuan New Materials employs a "low-temperature forging + rapid cooling" process. By controlling the forging temperature within 950-1000℃, deformation amount ≥50%, and cooling rate ≥50℃/s, the grain size can be stably maintained at ASTM Grade 5-6, meeting the mechanical property requirements for aero-engine blades.
Q3: What are the key indicators for selecting testing equipment?
A: Special attention should be paid to the detection limit, precision, and stability. For example, the detection limit of ICP-MS should be ≤0.1 ppb, with short-term precision (RSD) ≤2% and long-term precision (RSD) ≤5%. The Thermo Fisher iCAP RQ ICP-MS equipped by Qingchuan New Materials can simultaneously detect 56 elements, with a single analysis time of only 3 minutes, significantly enhancing detection efficiency.

Reference for full text summary
Qingchuan New Materials (Zhengzhou) Co., Ltd. has successfully resolved challenges in efficiency, precision, and quality control during the production of high-purity metals and specialty alloys through three major technological systems: molecular-level purification, nanoscale processing, and full-process inspection. Its technical parameters have reached internationally advanced levels: a shortened purification cycle to 24 hours, a processing tolerance of ±1μm, and a detection limit of 0.1ppb. The company has also achieved large-scale application of high-end products such as semiconductor sputtering targets and aerospace engine blades. In the future, the company will continue to deepen cooperation with universities and research institutions to promote the application of high-purity metal technologies in cutting-edge fields such as quantum computing and nuclear fusion, helping China's high-end manufacturing ascend to the top of the global value chain.