SMT solder paste water-based cleaning agent SMT steel mesh, also known as the stencil, is mainly used to transfer an accurate amount of solder paste to precise locations on the PCB board. The holes on the steel mesh match the areas to be printed on the PCB board. When the steel mesh becomes blocked, it can lead to printing defects. Typically, after printing 3-5 boards online, the steel mesh must be cleaned. With the increasing precision of electronic products and the decreasing spacing between components and traces, incomplete cleaning of the steel mesh can easily lead to solder balls, and in some cases, the steel mesh needs to be cleaned after printing each board.
Do SMT steel meshes need cleaning?
Can traditional cleaning methods and materials for SMT solder paste steel meshes continue? Online cleaning of SMT steel meshes is essential for routine maintenance to remove solder paste residues from the steel mesh to prevent contamination and ensure printing quality. Currently, the widespread use of hydrocarbon solvent-based cleaning agents or alcohol-based cleaning agents for cleaning poses what risks? Fire hazards! They are highly environmentally damaging and hazardous to human health, and their application safety is not ideal.
What are the cleaning methods and cleaning agents for SMT solder paste steel meshes? Generally, a professional steel mesh cleaning machine can be used, such as the Silman Tech DEZ-C730 steel mesh cleaning machine. So, can water-based solvents clean steel meshes online? As we all know, water-based cleaning agents are used for online steel mesh cleaning. The main concern is that the evaporation rate of water-based solvents is slower than that of commonly used solvent-based cleaning agents such as IPA and alcohol. The industry is concerned that residues of water-based products may pose safety risks to PCB board quality. In fact, this concern is completely unnecessary.