How is the quality of DuMeiSi’s copper and oxide layers controlled? What are the common issues, and what are their impacts?

Quality control of the copper and oxide layers in DuMeiSi (a type of metallic wire) is a critical step in the manufacturing process, significantly influencing product performance and service life. The following provides a brief analysis of the key quality-control points for this stage, common issues, and their associated impacts.

I. Quality Control of the Copper Layer

1. Raw Material Selection: High-quality copper rods or copper wires shall be selected as raw materials, ensuring that their purity meets the specified standards.
2. Manufacturing Processes: Strict control is exercised over rolling, drawing, and other processing operations to ensure uniform copper-layer thickness and the absence of cracks, delamination, and other defects.
3. Quality Inspection: Conduct regular inspections of the copper layer, including measurements of thickness, adhesion, and electrical conductivity, to ensure consistent product quality.

II. Quality Control of the Oxide Layer

1. Oxidation process: Employ an appropriate oxidation process, such as controlling oxidation temperature, time, and atmosphere, to ensure a uniform and dense oxide layer.
2. Additive usage: Use additives appropriately to enhance the performance of the oxide layer, improving its insulating properties and corrosion resistance.
3. Quality Inspection: Conduct quality inspections on the oxide layer, including tests for thickness, adhesion, and dielectric strength, to ensure that product quality meets specified standards.

III. Common Issues and Their Impacts

1. Copper layer issues: An excessively thin copper layer can degrade the product’s electrical conductivity, while an overly thick layer increases manufacturing costs; poor copper-layer quality is prone to cracking and delamination, thereby reducing the product’s service life.
2. Oxide layer issues: Non-uniformity of the oxide layer can lead to unstable product performance and increase the likelihood of breakdown and leakage; poor adhesion of the oxide layer may result in delamination from the copper substrate, thereby compromising product performance and safety.
3. Other issues: Improper temperature control during processing and equipment malfunctions, among others, can lead to fluctuations in product quality, thereby affecting the product’s stability and reliability.

IV. Countermeasures

1. Strengthen raw material testing to ensure that raw materials meet quality standards.
2. Strictly control the machining and oxidation processes to ensure stable product performance.
3. Conduct regular quality inspections of products to promptly identify and resolve any issues.
4. Conduct regular maintenance and inspections of equipment to ensure the stability of the production process.

In summary, quality control of the copper and oxide layers in DuMeiSi products is a critical step in the manufacturing process. It requires stringent control over raw materials, processing, and oxidation procedures, as well as timely identification and resolution of issues, to ensure product quality and service life. Manufacturing enterprises should establish a comprehensive quality management system to maintain consistent and stable product quality.