{"id":30367,"date":"2024-11-13T16:20:56","date_gmt":"2024-11-13T08:20:56","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=30367"},"modified":"2024-11-13T16:21:05","modified_gmt":"2024-11-13T08:21:05","slug":"clc0045","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/clc0045\/","title":{"rendered":"How to do the quality inspection of flat copper strips? What are the contents of the quality inspection of flat copper strips?"},"content":{"rendered":"

The quality inspection of flat copper strips should cover its physical and mechanical properties, surface quality, dimensional accuracy and other aspects to ensure the conformity and reliability of the product. The following are the main inspection items and methods in the quality inspection process of flat copper strips:<\/p>\n

1. Dimensional accuracy detection<\/strong><\/p>\n

Inspection content: Mainly inspect the diameter, cross-sectional area and other specifications of the copper wire.<\/p>\n

Testing tools: Use precision measuring tools such as vernier calipers, micrometers, laser diameter gauges, etc.<\/p>\n

Inspection standards: Compare with customer requirements or industry standards to ensure that the dimensions meet the specified tolerance range.<\/p>\n

2. Surface quality inspection<\/strong><\/p>\n

Inspection content: Observe whether there are scratches, cracks, oxidation spots, dents and other defects on the surface of the copper wire.<\/p>\n

Detection method: Use a high-power microscope to check for minor defects on the surface of the copper wire; if there are special requirements, a cross-sectional inspection microscope can be used to observe the uniformity and purity of the copper wire cross section.<\/p>\n

Inspection standard: The surface should be smooth and clean without obvious defects to ensure the conductivity and aesthetics of the copper wire.<\/p>\n

3. Mechanical properties testing<\/strong><\/p>\n

Tensile strength: Use a tensile testing machine to test the tensile strength of the copper wire to ensure that it is not easy to break during the stretching process and meets the strength requirements of the industry or customers for the copper wire.<\/p>\n

Elongation: The elongation of the copper wire is recorded in the tensile test, which reflects its flexibility and tensile properties, ensuring the durability of the product during use.<\/p>\n

Yield Strength: In a tensile test, the maximum stress value before permanent deformation is measured to ensure the copper wire's resistance to deformation.<\/p>\n

4. Electrical performance test<\/strong><\/p>\n

Resistivity test: Use a resistance tester to measure the resistivity of the copper wire to ensure that the conductivity meets the standard; the lower the resistivity, the better the conductivity.<\/p>\n

Conductivity detection: The conductivity is converted from resistivity and usually evaluated through current passing performance test to ensure its electrical performance is stable.<\/p>\n

5. Oxidation and corrosion resistance testing<\/strong><\/p>\n

Oxidation test: The oxidation resistance and corrosion resistance of copper wire are tested through high temperature and high humidity test or salt spray test to ensure that it will not be easily oxidized during long-term storage and use.<\/p>\n

\"\"