Stencil as a patch processing plant one of the printing tools, which role is to better integration of solder paste in the circuit board, so that it can be evenly coated parts, but the stencil will become dirty after use, the surface of a lot of residual solder paste or flux and other impurities, and the cleanliness of its surface directly affects the quality of the printing of the solder paste and soldering effect. Therefore, in order to ensure the printing quality of the solder paste and soldering effect, the stencil must be cleaned regularly. Here are some common cleaning methods to share with you:

I. Cleaning methods and techniques of stencil

Cleaning method: can be cleaned manually or professional cleaning equipment.

Cleaning agent selection: according to the nature of the residue to choose the appropriate cleaning agent, such as alcohol, cleaning fluid.

Cleaning method: you can use soaking, spraying, wiping and other methods for cleaning.

Cleaning skills: adjust the cleaning time and strength according to the actual situation to ensure thorough cleaning.

Second, how to determine the cleaning effect of the stencil

Visual inspection: By observing the cleanliness of the stencil surface, determine whether there is residual solder paste, flux and other impurities.

Tactile inspection: By touching the surface of the stencil, feel its smoothness, to determine whether the cleaning is clean.

Printing test: Conduct a small batch printing test to observe the thickness and uniformity of the solder paste and judge the cleaning effect.

Regular Inspection: Conduct regular professional inspections of the stencil to ensure its surface quality and conductivity.

Xinfeijia Technology, as one of the SMD factories, has also been adhering to a combination of automatic and manual cleaning methods to ensure that the cleanliness of the stencil meets the production requirements. At the same time, the company also regularly conducts visual inspection, tactile inspection and printing test, etc. to ensure that the cleaning effect of the stencil is stable and reliable. We provide the industry with reliable quality patch production services.