Using Solder Paste directly after refrigerated storage may lead to degraded solder joint quality.

When solder paste is stored in a low-temperature environment, its internal Flux components undergo physical property changes due to temperature variations; these changes may affect the fluidity and wettability of the solder paste if used directly.

If solder paste is put into use without sufficient thawing, it may result in uneven coating on the PCB, thereby causing soldering defects.

The correct practice is to take the solder paste out of the refrigerated environment and leave it at room temperature for a period of time to allow its temperature to gradually rise to room temperature.

The specific time depends on the ambient temperature and the type of solder paste, generally requiring 1 to 2 hours.

During the thawing process, avoid direct sunlight or high-temperature environments to prevent damaging the stability of the solder paste.

After thawing is complete, the solder paste needs to be stirred to ensure its components are uniform.

Before use, check whether the appearance of the solder paste is normal, and whether there is any caking or stratification.

If any abnormal conditions are found, stop using it and contact the supplier for inspection.

To prevent similar problems, it is recommended to establish strict storage and usage specifications for solder paste.

At the same time, conduct regular performance tests on the solder paste to ensure it meets process requirements.

For procurement personnel, it is crucial to choose reputable suppliers and pay attention to the shelf life and storage conditions of the solder paste.

Process engineers need to optimize the usage process of solder paste according to actual production conditions.

This can effectively reduce the risks caused by improper operation.

Maintaining an in-depth understanding of the characteristics of solder paste helps improve overall production efficiency.

Properly managing the storage and use of solder paste is an important part of ensuring product quality.

Every step of the operation must be carried out carefully to avoid potential problems.

Refrigerated storage of solder paste is only one part of the process; subsequent handling is equally critical.

Do not overlook any details, as this may directly affect the final soldering effect.

The quality of solder paste is closely related to its usage method, and no carelessness can be allowed.

Ensuring that every link meets the standards is necessary to achieve a stable production process.