/The functions of resistance flux on printed circuit boards
The resistance flux is a high temperature resistant coating used in dip soldering and wave soldering in order to protect the parts that do not need to be welded during the welding process, so that the soldering operation is performed at a certain location. This material that acts to impede the welding action is called resistance flux.
What are the functions of resistance flux in printed circuit boards, which can prevent solder paste icicles, solder joint bridging connection, circuit board short circuit, virtual soldering and other defects, and improve the quality of PCB board welding . In the SMT welding process, all areas are protected except the welding pad need to be welded, at the same time save solder. The use of colored resistance flux can also make the surface of the soldered parts clean and beautiful. The use of resistance flux improves the quality of welding, ensures product reliability, and guarantees a variety of plastic components and integrated circuit
The resistance flux has a dry film type and a printing type , and the printing type resistance flux is further classified into a heat curing type and a light curing type, and light curing type resistance flux is widely used at present.
The above are the functions of resistance flux on printed circuit boards. For more information, please pay attention to this website www.cnfastpcb.com
These four ceramic substrates are manufactured by FASTPCBA, the appearance gold plating technics, the inside pad is ceramic substrate, ultra-thin composite substrate has excellent electrical insulation properties, high thermal conductivity, excellent solderability and high The adhesion strength a...
PCB manufacturing equipment has the characteristics of automatic, high precision, high speed and high efficiency. PCB design must meet the requirements of pcb equipment. The PCB design and production equipment requirements include: PCB shape, size, positioning holes and clamping edges, reference ...
Printed stencil, also known as drain plate and stencil, is used to quantitatively distribute solder paste or patch glue. It is an important part of printed circuit board tin. The design of stencil reflects the quality of pcb assembly. Therefore,stencil is the key tool for ensuring printing qualit...