Composition Analysis of Common Electronic flux

Date：2023-05-30 15:10:04Views：294

Welding is a very important process in electronic production and manufacturing. Flux is an auxiliary material which can reduce welding temperature and oxidation during welding. Its main function is to remove oxides from the surface of components, make them in close contact with the welding surface, and provide a certain wetting effect, thereby making the welding process more firm and reliable. Composition analysis is one of the important steps to ensure product quality and production efficiency. The following will introduce some commonly used electronic flux composition analysis.

Chloride content analysis

Chloride is a common welding additive component that can enhance the activity of the solution, help remove oxides, and remove welds. However, excessive chloride content can increase the brittleness of solder joints and affect the reliability of the product. Therefore, the chloride content in flux needs to be analyzed and controlled in the production process.

Solder flux cleanliness test

The composition of the flux is usually grease, resin, etc., which can easily contaminate the solder joint during use, so cleanliness testing is required. The testing method usually uses capillary reaction chromatography to detect the presence of impurities, degassing, and other pollutants in the flux.

Nitrogen content analysis

Nitrogen is a gas used to improve the welding quality of electronic components, which can prevent oxidation reactions during the protective welding process. The analysis of nitrogen content usually uses gas chromatography.

Tin content and particle size testing

Tin content and particle size in flux have an important influence on welding quality. The analytical methods are usually atomic absorption spectroscopy and scanning electron microscope.

Analysis of film thickness of flux coating

The flux is coated on the solder joint during welding to form a coating, so the thickness of the coating also needs to be analyzed. Commonly used methods include electron microscopy and laser thickness measurement.

Analysis of harmful components

Electronic flux may contain some harmful substances, such as benzene, xylene, etc. These harmful substances may have adverse effects on the human body and environment, so analysis and treatment are necessary. When purchasing and using electronic flux, the customer shall require the supplier to provide an analysis report of harmful substances to ensure that the electronic flux used meets environmental requirements.

Composition ratio analysis

The ratio of electronic flux has a crucial impact on its performance. Different electronic flux ratios are suitable for different welding processes and environmental conditions. When customers purchase electronic flux, they need to ask the supplier to provide a detailed ratio report so that they can select the appropriate electronic flux according to their own needs.

The above is an introduction to the composition analysis of electronic flux. If you have any needs in this regard, please consult the core creation test! These analyses are essential to ensure the quality and safety of electronic flux. Customers should pay special attention to its composition and quality when purchasing and using electronic flux. In order to ensure product quality and improve production efficiency, each process step needs to be carefully analyzed and controlled.