What are the requirements for environmental temperature and humidity for laser welding solder paste

During the use of laser soldering solder paste, environmental temperature and humidity have significant influences on the performance of laser solder paste and the soldering quality. Now, Shenzhen JJY Solder Paste Manufacturer will explain some basic requirements and suggestions regarding the ambient temperature and humidity for the use of laser solder paste:

Ambient temperature

Recommended temperature range:

1, It is usually recommended to control the working environment temperature at18°Cto28°CBetween. This temperature range helps maintain the stability of laser solder paste and good printing and dispensing performance.

Avoid extreme temperatures:

1, Excessively high temperatures may accelerate the evaporation of flux, leading to a decrease in the viscosity of laser solder paste and unstable printing and soldering performance.

2Excessively low temperatures may cause the laser solder paste to become overly viscous, affecting the quality of printing and tin dispensing, as well as issues such as insufficient tin quantity.

Temperature fluctuation

1Try to avoid significant fluctuations in environmental temperature as this may lead to unstable performance of the laser solder paste.

Environmental humidity

1Recommended humidity range:

1.1The relative humidity should be controlled at20%to60%Between. High humidity may cause the flux in laser soldering solder paste to absorb moisture, affecting its performance.

1.2Too low humidity may cause excessive evaporation of the solvent in the laser solder paste, affecting the viscosity of the solder paste and its printing and dispensing performance.

2Avoid extreme humidity:

2.1Extreme humidity may cause instability in the performance of laser solder paste, affecting the welding quality.

3Humidity fluctuation

3.1Try to avoid sharp fluctuations in environmental humidity as this may have an adverse effect on the performance of laser soldering solder paste.

To maintain appropriate temperature and humidity conditions, the following measures can be taken:

1Use air conditioners or dehumidifiers to control the ambient temperature and humidity.

2, Place a hygrometer in the laser solder paste storage and operation area to monitor and adjust the environmental conditions.

3Regularly inspect the storage containers of laser solder paste to ensure they are well sealed and prevent environmental factors from affecting them.

4In printing/During the tin dispensing and soldering processes, try to keep the environmental temperature and humidity stable.

Generally, after laser solder paste is printed or doted onto the product, soldering should be carried out as soon as possible to reduce the evaporation and oxidation of the flux in the laser solder paste. Ideally, the solder paste after printing or dispensing should be in30The minute is up.1The welding will be completed within hours.

Through these measures, the performance of laser solder paste and the welding quality can be ensured, thereby enhancing production efficiency and product quality.

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