Electronic circuit boards and other industries need to apply the corresponding technology to a large area of brushing glue for bonding and sealing, so on the premise of uniform brushing without injury, they will choose soft texture needle or brush needle, etc. This paper recommends a needle mainly used in low-viscosity or medium-viscosity filling glue to control coating. This soft texture needle is mainly used in low-viscosity filling glue or medium-viscosity filling glue to control coating. The floor needle is a flat-mouthed soft wool needle, which can be used to finish the gluing work with a large proportion of brushing and can avoid scratching the material of the product.
Large Area Electronics Brush Coating
Wide area brushing requirements for soft needles
Selecting flat-mouthed soft-wool needle instead of manual nylon brush is mainly based on automatic application. Flat-mouthed soft-wool needle can be operated by adding it to the bottom of dispensing valve or dispensing needle barrel. High-quality PP material can control low-viscosity filling glue for a long time and brush it to the required filling position. It is mainly applicable to the control of low-viscosity filling glue with various properties. In the filling process, such as primer boiling, catalyst, lubricant, flux and other low viscosity adhesives brush to the flexible circuit board viscose and other large areas of brushing position, this kind of adhesives in the low viscosity to avoid the adhesion of soft fur and affect the consistency and effect of brushing.
Flat-mouthed soft brush needle
When large area brushing is needed, attention should be paid to whether the durability life of flat-mouthed soft wool needle is near the limit. Once the durability life is reached, it should be replaced in time. This is the defect that PP soft wool and other soft wool do not support long-term application.