助焊剂的应用方法(国外英文资料).docVIP

助焊剂的使用方法 To illustrate: flux is a kind of low solid content, the activity of halogen free disposable flux, this unique combination of active system of the solder surface has excellent wettability, uniform and reliable removal effect of solder oxide layer and bad matter, facilitate formation interface alloy, light full of solder joints. Environmentally friendly colorless disposable flux due to the low solid content, after welding and solder joint surface of the plate surface residue, uniform brightness, and has a very high surface insulation resistance, easy to pass the ICT test. It should be used: the environment-friendly and colour-free soldering flux 6600 is suitable for foaming, spray and coating. When using wave soldering equipment, suggest to buy PCB panel heat temperature of 90 ℃ to 110 ℃, a best effect and flux. Flux foaming operations, recommend the use of microcellular foaming tube, to ensure that the foaming effect, use of strict control, proper adding diluent, make its proportion in the standard within the scope of use (0.800-0.005). The wavepeak solder wave needs to be flat, reduce the deformation of PCB, and make the tin time to be consistent in order to achieve more uniform surface effect. When spraying, pay attention to the adjustment of the nozzle, not to allow the flux to be evenly distributed on the PCB surface. Application to oil, water and the cooling process of compressed air foam, compressed air pressure to maintain stability, so as to avoid foaming highly unstable, flux normal service life about work for 48 hours, when found flux cloudy or suspended in the liquid, should keep clear of in time slot samyama flux, cleaning foam tank, replace the flux. The flux is also called a soldering agent, which plays a vital role in the whole brazing process. The flux is usually made of lumpy, powdery or paste material. The melting point of the flux is lower than the solder, and its weight, viscosity and surface tension are smaller than the solder. When sol