What do you know about the welding skills of double-sided PCB?
The wide application of double-sided circuit board has promoted the manufacture of printed circuit board to light, thin, short and small development.
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
How does smt plant improve production efficiency?
In the main PCB circuit boards and components are not possible to increase the price, so the cost is reflected in the link of assembly. : 1, auxiliary materials: tin paste, tin strip, flux, UV glue, through the furnace fixture, 2, smt patch processing, 3,
How to avoid smt patch machining welding defects
The following seven factors that will affect welding are summarized: first, welding heating bridge, second, pin welding force, third, choice of soldering iron head, fourth, temperature setting, fifth, use of flux, sixth, transfer welding operation, sevent
Causes and control methods of tin beads in SMT production
Tin beads have serious harm to electronic products, so how to reduce tin beads is one of the key management and control contents of SMT enterprises.
How to repair circuit boards
Resistance is the most numerous component in electrical equipment, but it is not the component with the highest damage rate. Resistance damage is most common in open circuit, and resistance increases are rare and resistance decreases are rare.
Must know PCB processing plant 8 kinds of detection technology
With the development of miniaturization of electronic products and high-density assembly of circuit board components, SMT production and testing have brought great challenges.
Hard to design PCB board, but do not let the hole destroyed!
Through hole is one of the important components of multi-layer PCB. From the perspective of function, through hole can be divided into two categories: one is the electrical connection between each layer; The second is the device fixing or positioning.
Why do PCB boards warp? What is the harm after deformation?
On the automatic surface mounting line, if the PCB is not smooth, it will cause inaccurate positioning, components cannot be inserted or affixed to the holes of the board and the surface mounting pad, and even crash the automatic inserting machine.
Deformation caused in the process of PCB board processing
PCB deformation causes can be divided into thermal stress and mechanical stress. The thermal stress is mainly produced in the process of pressing, and the mechanical stress is mainly produced in the process of stacking, handling and baking.
SMT patch components are welded manually
SMT patch factory control method of temperature and humidity sensitive elements: 1, environmental control, 2, process control, 3, control method
PCBA patch processing lead-free process and lead process difference?
The basic process composition of SMT patch processing includes: screen printing (or dispensing), mounting (curing), reflow welding, cleaning, detection, repair screen printing
Solder paste printing collapse for SMT patch processing
The main adverse phenomena in the solder paste printing process of SMT patch processing are as follows:After printing, the solder paste is not enough and gradually spreads to the outside of the pad. Reason analysis: 1, the scraper pressure is too large, 2
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