With the widespread use of various electronic products, reflow soldering technology has been widely applied. In the production process, reflow soldering trays are indispensable tools. However, due to frequent use and high temperatures, the surface of the trays accumulates a large amount of solder slag and dirt, necessitating cleaning. To ensure production quality and efficiency,…
Circuit board cleaning machines feature efficient performance and precise control, providing excellent cleaning results. During usage, strictly follow the operating manual and safety procedures of the cleaning machine, and perform regular maintenance and cleaning to ensure its normal operation and outstanding cleaning performance. The Silman Tech intelligent DEZ-C743 circuit board cleaning machine is a high-end…
Solder paste is a paste-like chemical substance that plays two main roles in the soldering process: “removing oxides” and “reducing surface tension of the soldered material.” The functional components of solder paste include the matrix, flux, and surfactant. The matrix is the main component of the solder paste, controlling its melting point. Once melted, it…
Solder paste is a type of soldering material commonly used in the SMT production industry. It is a paste-like solder made by uniformly mixing alloy powder with a flux carrier. Many PCB manufacturers have reported that solder paste easily dries out during the production process. Next, we will introduce the reasons and solutions for solder…
Initially, in the early stages of PCBA assembly, fixtures were rarely used. Almost all PCBs could pass through the oven directly without the need for any fixtures unless the boards couldn’t withstand heavy loads, such as power boards. The use of fixtures for reflow soldering became prevalent with the rise of selective wave soldering, coupled…
There are several preventive measures to consider in wave soldering. Firstly, it’s essential to improve the PCB manufacturing process to enhance the cleanliness of the hole walls. This includes improving PCB packaging processes and storage conditions. It’s important to minimize dwell time on insertion lines as much as possible. The process from PCB depanelization, component…
Wave soldering fixtures, used in the wave soldering process to secure and protect electronic components, are typically made of the following materials: In summary, wave soldering fixtures are made of conductive, heat-resistant, corrosion-resistant, insulating, and other auxiliary materials. The choice of materials should be based on specific requirements.
Due to the limitations of traditional wave soldering technology in dealing with soldering surfaces with fine pitch and high-density surface mount components, the use of shielding fixtures to shield surface mount components for wave soldering of through-hole leads has emerged. Currently, the main methods used are: ① Metal iron pressing; ② Installation of snap fasteners…
Solder paste printing is a crucial step in the SMT process, and its importance cannot be overstated. It is considered one of the main processes in the entire SMT process chain. During production, more than 70% of abnormalities in the SMT placement process are more or less related to solder paste printing, especially on multi-layer…
As for cleaning wave soldering fixtures, the general recommendation is to use the Silman Tech fully automatic fixture cleaning machine DEZ-C756. This equipment is used for cleaning various workpieces, such as wave soldering fixtures, reflow soldering trays, and condensers, removing flux residues, oil stains, dust, etc., from the surface of machine parts. The workpieces undergo…
