1. Oxidation or contamination of the soldering terminals, pins, and pads of the printed circuit board substrate, or the PCB pads are damp. 2. The adhesion of the metal electrode of the inductor terminal is poor or the single-layer electrode is used, which will cause the capping phenomenon at the welding temperature. 3. In the […]
Author Archives: allaismt
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Apr
Apr
1. Earnestly accept the operation training of the equipment manufacturer, and be able to operate wave soldering independently and skillfully according to the chapter. 2. Maintenance of the spray system: During wave soldering, the nozzle should be cleaned with alcohol every 8 hours, and the nozzle should be cleaned when it is out of service. […]
16
Apr
Apr
With the rapid development of SMT processing technology, SMT chip processing has gradually replaced DIP insert processing. However, due to the large size of some electronic components in PCBA production and other reasons, the plug-in processing has not been replaced, and it still plays an important role in the electronic assembly processing. DIP plug-in processing […]
16
Apr
Apr
The tombstone is also known as the suspension bridge and the Manhattan phenomenon. It refers to the two Korean-end surface-mounted components. After reflow soldering, one of the ends leaves the surface of the pad. The entire component is inclined or upright, like a stone monument, as shown in the figure. As shown, one end of […]
16
Apr
Apr
The SMT production line consists of a lot of production equipment, each of which has a different job, but the ultimate goal of each equipment is a printed circuit board. SMT’s production equipment is fully automatic, high-precision, high-speed, and high-efficiency. What equipment does a complete and efficient SMT production line mainly include? Usually the main […]
16
Apr
Apr
What are the characteristics of AOI: (1) The high-speed inspection system has nothing to do with PCB mounting density. (2) Fast and convenient programming system. (3) Use a wealth of dedicated multi-function detection algorithms and binary or gray level optical imaging processing technology for detection. (4) The detection window is automatically corrected according to the […]
16
Apr
Apr
The metal base copper clad laminate is generally composed of a metal substrate, an insulating dielectric layer and a conductive layer (usually copper foil). That is, one or both sides of the metal substrate with the surface treated are covered with insulating medium and copper foil, and then composited by hot pressing . (1) Classification […]
16
Apr
Apr
-The delivery time is reduced from two hours to 15 minutes, and the efficiency is increased by 8 times – each shelf can be unordered storage of 1400 trays of materials, inventory area can be saved by 40% – the location of each material can be checked quickly, and the inventory time can be reduced […]
16
Apr
Apr
The intelligent warehousing system integrates with the ERP system, MES system, etc., to accurately realize the distribution of work order materials according to the station information; the SMT intelligent warehousing system and the placement machine data interconnection, realize the automatic data of the end of the production line when the materials are returned to the […]
16
Apr
Apr
1. Why is the PCB multilayer circuit board required to be very flat: In the automated assembly line, if the PCB multi-layer board is not flat, it will cause inaccurate positioning, components cannot be inserted into the holes and surface mount pads of the board, and even the automatic plug-in assembly machine will be damaged. […]