Analytical Testing Services
Relying on platforms such as the National Light Metal Quality Supervision and Inspection Center at Chinalco Zhengzhou Research Institute, Light Alloy Institute is a leading authority in China for testing non-ferrous and light metal materials. It is an accredited institution recognized by the China National Accreditation Service for Conformity Assessment (CNAS) and an authorized laboratory accredited by China’s State Administration for Market Regulation. The institute boasts advanced, state-of-the-art material analysis and testing capabilities, enabling it to conduct comprehensive performance analyses and inspections across various aspects of the metals industry.
Zhengzhou Light Alloy Institute has been dedicated for years to the analysis and testing of non-ferrous metal materials, focusing primarily on chemical composition, physical properties, mechanical performance, and microstructural analysis of non-ferrous metals such as aluminum, magnesium, copper, lead, and zinc, as well as their alloys and advanced new materials. The company boasts robust capabilities in non-ferrous alloy laboratory research, small-scale trials, and pilot-scale testing, enabling it to carry out processes like alloy melting and casting, rolling, extrusion, forging, and surface treatment.
1. Chemical Composition Analysis
The laboratory is equipped with several key analytical instruments, including 2 plasma spectrometers, 3 optical emission spectrometers, 2 atomic absorption spectrometers (AAS and GFAAS), 3 UV/visible spectrophotometers (UV), as well as a carbon-sulfur analyzer and an oxygen analyzer. With a diverse array of chemical analysis techniques at its disposal, the lab can accurately determine and inspect the composition of various metallic and non-metallic elements in non-ferrous alloys such as aluminum, magnesium, copper, lead, and zinc.
The primary testing equipment for chemical composition analysis of Wenzhen products
| Equipment | Model | Features |
| Plasma Spectrometer | U.S. IRIS INTREPID | Chemical analysis of alloys made from aluminum, magnesium, copper, lead, zinc, and more, with analytical precision down to 1 ppm. |
| Optical Emission Direct-Reading Spectrometer | U.S. BAIRDDV-4 | Chemical composition analysis of aluminum alloy for manufacturing can be performed online, with an analytical accuracy of 10 ppm. |
| Optical Emission Direct-Reading Spectrometer | UK ArunArtus10 | Chemical composition analysis of aluminum alloy for manufacturing can be performed online, with an analytical accuracy of 10 ppm. |
| Optical Emission Direct-Reading Spectrometer | UK Anun MetalScan2500 | Chemical composition analysis of aluminum alloy for manufacturing can be performed online, with an analytical accuracy of 50 ppm. |
| Atomic Absorption Spectrometer | U.S. SOLA ARM6 | Chemical analysis of alloys made from aluminum, magnesium, copper, lead, zinc, and other materials, with analytical precision down to 10 ppm. |
| UV/Vis Spectrophotometer | U2001 | Chemical analysis of aluminum, magnesium, copper, lead, and zinc alloy compositions, with analytical precision down to 10 ppm. |
| Carbon-Sulfur Analyzer | German CS-2000 | Chemical determination of non-metallic elements—carbon and sulfur—in aluminum, magnesium, copper, lead, and zinc alloys Component analysis with an analytical accuracy of 2 ppm |
| Oxygen Analyzer | U.S.-made Leco RO500C | Chemical composition for determining the oxygen content of non-metallic elements in aluminum, magnesium, copper, lead, and zinc alloys Analysis, with an accuracy of 0.5 ppm |
2. Mechanical Property Test Specimen
The laboratory’s primary testing equipment includes three universal electronic testing machines, two high-temperature creep and rupture strength testers, a thermal cycling chamber for alternating high-and-low temperature tests, as well as Brinell and Vickers hardness testers. With a wide range of materials testing capabilities, we can perform tensile, compressive strength, elongation, hardness, creep, and rupture tests on non-ferrous alloy materials such as aluminum, magnesium, copper, lead, and zinc—at both room temperature, elevated temperatures, and cryogenic conditions.
Main experimental equipment
| Equipment | Model | Features |
| Electronic Universal Testing Machine | Italy SUN10 | Maximum testing force: 100 kN, capable of performing tensile, compression, and bending tests on samples under room-temperature conditions. And tensile tests conducted under high-temperature conditions |
| Electronic Universal Testing Machine | WITHOUT CMT-5105 | Maximum testing force: 100 kN, capable of performing tensile, compression, and bending tests on samples under room-temperature conditions. |
| High-Temperature Creep Rupture Strength Test machine | RC-0930 | Maximum test force: 30 kN, maximum testing temperature: 600°C—capable of evaluating the creep performance and long-term strength of materials under high-temperature conditions. |
| Thermal Shock Test Chamber | DGW4025 | Operating temperature: -30°C to +80°C, designed for high- and low-temperature testing of materials and components, with stable low-temperature control. |
| Brinell Hardness Tester | HBS-62.5 | Measurement range: 3.2–650 HBW, test force: 1–62.5 kg |
| Vickers Hardness Tester | HVS-5 | Measurement range: 5–3000 HV, test force: 0.2–5 kg |
3. Physical Performance Testing
The laboratory’s primary testing equipment includes: two comprehensive thermal analyzers, a thermogravimetric analyzer (TG), two universal friction and wear testers, an electromechanical bridge-type resistivity meter, a magnetometer, a surface roughness tester, and a coating thickness gauge. With a diverse range of tools for material characterization, we can assess materials’ thermodynamic properties, wear resistance, electrical performance, magnetic characteristics, surface roughness, and coating thickness.
Main experimental equipment
| Equipment | Model | Features |
| Comprehensive Thermal Analyzer | France Sets vs. w Evolution-1750 | Maximum operating temperature: 1750°C, heating rate: 0–100 K/min, atmosphere: inert, oxidizing, or reducing. Water vapor, corrosive gases, and thermal gravimetric (TG) and differential thermal analysis (DTA) of alloy materials such as aluminum, magnesium, and copper. Thermodynamic analyses such as Differential Scanning Calorimetry (DSC) |
| High-Temperature Thermal Expansion Coefficient Instrument | PCY | Maximum furnace temperature: 1200°C, heating rate: 0–100°C/min, expansion measurement resolution: 0.1–1 μm, sample… Dimensions (2–15) × (2–15) × (20–150) mm, made from alloy materials such as aluminum, magnesium, and copper. Measurement of coefficients of thermal expansion, volumetric expansion coefficient, and linear expansion amount, among others |
| Universal Friction and Wear Testing Machine | MMW-1A | Axial test force range: 10–1000 N; short friction measurement range: 0–2500 N·mm; spindle Rotational speed range: 5–2000 rpm, featuring friction pairs such as lock-disc friction, stop-carrying plate friction, and ball-disc friction. Testing the friction coefficient and wear volume between alloy materials such as aluminum, magnesium, and copper, and friction surfaces |
| Digital Bridge-Type Resistivity Meter | DQ84 | Sampling time: 0.4 seconds, measurement range: 0–20 kΩ, minimum resolution: 1 μΩ, sample diameter less than 38 mm. Resistance resistivity coefficient testing for alloy materials such as aluminum, magnesium, and copper, with lengths exceeding 1.5 meters |
| High-Temperature Thermal Conductivity of Metals Digital Tester | DRJ | The electric furnace reaches a maximum temperature of 1350°C, and its thermal conductivity testing range is 1.0 to 500 W/m·K. It is suitable for use with aluminum and magnesium. Measurement of Thermal Conductivity for Copper and Other Alloy Materials at Non-Phase-Transformation Temperatures |
| Vibrating Sample Magnetometer | HH-15 | Maximum magnetic field: 0.5–2.5 T; Sensitivity: 3–4 × 10⁻⁵ emu; Magnetic strength testing of magnetically alloyed materials |
| Surface Roughness Tester | TR-100 | The measured roughness parameters are Ra ranging from 0.05 to 10 μm and Rz from 0.1 to 50 μm, with sampling lengths of 0.25 mm and 0.8 mm. 2.5 mm, scanning length of 6 mm—used for surface roughness testing of alloy materials such as aluminum, magnesium, and copper. |
| Coating Thickness Gauge | MiniTest600B | Probe size: φ15 × 62 mm, minimum curvature radius: 5 mm (convex), 25 mm (concave); minimum measurable area φ20mm, thickness range 0–3000 μm; the FN-type probe can be used on both magnetic and non-magnetic substrates. Dynamic conversion measurement, utilizing anodized films, paints, coatings, and other plating materials made from alloys such as aluminum, magnesium, and copper. Layer Thickness Testing |
4. Microstructure Testing
The laboratory is equipped with key testing instruments, including two scanning electron microscopes (SEM), a transmission electron microscope (TEM), three optical metallographic microscopes (OM), and an X-ray diffraction analyzer. These tools enable observation of material structures at magnifications ranging from 50x to 2 millionx, allowing for comprehensive analysis of alloy materials—from macroscopic features visible to the naked eye down to atomic-level details. Additionally, techniques such as X-ray diffraction, energy-dispersive spectroscopy, and spot diffraction are employed to precisely determine the microstructural morphology, phase structure, and phase composition of alloy materials.
Main experimental equipment
| Equipment Model Features | ||
| Scanning Electron Microscope | Japanese electronics JSM-6360LV | Capable of magnification ranging from over ten times to hundreds of thousands of times, with a resolution as high as 3 nm, it’s ideal for observing nanomaterials. Microscopic phase composition and morphology analysis of alloys made from aluminum, magnesium, copper, and more |
| Transmission Electron Microscope | Japanese electronics JEM-2100 | Point resolution: 0.23 nm, line resolution: 0.14 nm, accelerating voltage: 200 kV, beam spot size Dimensions: 1.0 to 25 nm; magnification: high magnification, 2,000 to 1,500,000x; low magnification, 50 to 6,000x. Designed Observing and analyzing the internal microstructures of solid materials such as aluminum, magnesium, and copper, as well as nanomaterials, Observation of transmission images (bright-field, dark-field, and high-resolution images), along with selected-area electron diffraction patterns. Analysis and compositional analysis at the nanoscale |
| Metallographic Microscope | Swiss Leica DM4000M | The microscope offers magnification ranging from 50x to 1000x and supports brightfield, darkfield, and polarized light observation modes, utilizing aluminum components. Metallographic inspection of alloys such as magnesium, copper, lead, and zinc |
| High-Temperature Metallographic Microscope | German ZEISS | The microscope offers magnification ranging from 50x to 1000x, with a maximum heating temperature of 1500°C and a controlled heating rate. 1-200°C/min, high-temperature metallographic analysis of alloys such as aluminum, magnesium, and copper |
| X-ray Diffraction Analyzer | Dutch X-pert Pro | Maximum power: 2 kW (Cu target), measurement range: 0–167°, suitable for aluminum, magnesium, copper, and more. The phase structure of alloys for rapid qualitative and semi-quantitative analysis under various conditions, such as room temperature, high temperatures, and low temperatures. And phase composition |
5. Corrosion and Protection
Corrosion and Protection Laboratory Functions: The lab focuses on researching corrosion and protection mechanisms for surfaces of non-ferrous alloys such as aluminum and magnesium. Key activities include studying alloy corrosion behavior and its underlying mechanisms, as well as investigating various surface treatment processes for aluminum and magnesium alloys—such as passivation, anodizing, micro-arc oxidation, electrophoretic coating, chemical plating, plasma spraying, paint coating, and magnetron sputtering. By analyzing the corrosion performance of different alloys, the lab selects optimal anti-corrosion techniques. Coating performance is evaluated through tests like salt spray and friction-wear experiments, and process parameters are fine-tuned based on coating failure patterns, ensuring continuous optimization to enhance the protective capabilities of these alloys.
| Equipment | Model | Features |
Electrochemical Workstation Salt Spray Test Chamber Weathering Tester Micro-arc Nitriding Equipment Micro-arc Nitriding Equipment Plasma Spray System Magnetron Sputtering At the plasma surface Rationality and Principle | Princeton VMC, USA YWQ-300 Xenotest⑧Alpha+ T-MAO-B200 Model MAO-200 Model Plexus Surface Technologies Co. Model 3710 JN-CLD-1000 Model PR20L | Supports most electrochemical applications, corrosion, sensors, and bioelectrochemistry Applications in areas such as learning, chemical power sources, fuel cells, and electroplating; exhibiting excellent Current measurement accuracy, suitable for corrosion studies, coating evaluations, and microcell analysis. Electrochemical impedance testing, among others 300L, capable of continuous or periodic spraying according to national standards or military standards. 1 × 2200W air-cooled xenon lamp; 1320 cm² exposure area; high High-irradiance testing reaching up to 180 W/m² High-power, bipolar asymmetric design, with current ranging from 0 to 300A and adjustable voltage. (0–700V) High-power, unipolar, current (0-100A), voltage (0-500V) Three-cathode axial powder-fed plasma spraying system, critical microporous gas Traffic Control Functional membranes, hard films, metallic films, semiconductor films, and dielectric films Wait It can generate plasma atmospheres containing oxygen, nitrogen, and more, enabling surface treatment of materials. Surface cleaning, modification, and more |
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