Quality Assurance
Raw Material Inspection
- Verification: Conduct chemical analysis to ensure the raw material meets the required standard.
- Physical Inspection: Check for any visible defects or inconsistencies in the raw materials before processing.
Dimensional Accuracy
- Thickness Measurement: Use micrometers, calipers, or laser thickness gauges to ensure uniform thickness across the entire foil. Regular checks are performed during production to maintain consistency.
- Width and Length Verification: Measure the width and length of the foil to ensure it meets the specified dimensions. This can be done using precision measuring tools and automated measuring systems.
Surface Quality Inspection
- Visual Inspection: Inspect the surface for any visible defects such as scratches, dents, or impurities. This is often done using magnification tools or high-resolution cameras.
- Surface Roughness: Measure surface roughness using profilometers to ensure a smooth surface, which is crucial for applications requiring high precision and performance.
Chemical Composition Analysis
- Spectroscopic Analysis: Perform spectroscopic techniques like XRF or ICP-MS to verify the chemical composition, ensuring the presence of necessary elements and the absence of unwanted impurities.
- Grain Structure Examination: Use metallographic microscopes to examine the grain structure of the tungsten foil. Proper grain size and structure are crucial for material performance.
Mechanical Properties Testing
- Tensile Strength: Conduct tensile tests to determine the foil's strength and elongation properties. This helps ensure the material can withstand the required mechanical stresses.
- Hardness Testing: Use hardness testers (e.g., Vickers or Rockwell) to measure the material's hardness, ensuring it meets the specified requirements.
- Magnetic Permeability Testing : Conduct permeability tests ，detect strip magnetic conductivity and measure the distribution of strip tensile stress to ensure that our strips meet the requirements of weak or non-magnetic properties requirements in our customers’ field of application.
Other Testing customized
- Corrosion Resistance Tests: Subject the strip or foil to various corrosive environments to test its resistance. This is depended for applications where the material will be exposed to harsh conditions.
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Electrochemical Tests: Conduct electrochemical tests to measure the corrosion rates and behavior of the strips or foil in specific environments.
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