What is the warm-up to PCBA welding: When technicians and practitioners hear the words "temperature curve" or "temperature curve", they think of smt reflow soldering. Along the vast length of the weld zone, it is easy to see the four m...
Factors that determine perfect wave soldering in PCBA processing include: 1. Stable complete contact; 2. heat
To ensure service quality, we will check all SMT processing and DIP welding processes :1. PCB factory inspection,2. High temperature baking before production,3. 3D AOI solder paste printing inspection,4. Optimal cost accounting,5. Technical feasibility st
The advantages of PCBA processing are: 1. Mass PCBA processing and assembly - complete equipment, 2. Our source of PCBA quality assurance, 3. Low cost PCBA one-stop supply chain management, 4. PCBA expert team
When PCBA is processed in the furnace: Because the pin of the plug-in element is scour by tin flow, some plug-in elements will be tilted after welding in the furnace, resulting in the element body beyond the screen frame, so it is required to repair weldi
The main reasons for solder joint failure in PCBA processing are as follows: 1, component pin is bad: 2, PCB solder pad is bad: 3, solder quality defects: 4, solder quality defects: 5, process parameter control defects: 6, other auxiliary materials defect
Methods for rapid maintenance of faults after PCBA processing: one, visual inspection method, two, resistance method, three, voltage method, four, waveform method, five, current method, six, component replacement method, seven, step by step investigation
When the solder paste reaches the melting temperature, under the action of balanced surface tension, there will be a self-positioning effect, that is, when there is a small deviation from the component placement position, under the action of surface tensi
PCBA processing using expired PCB board three hazards: 1, PCBA processing using expired PCB may cause oxidation of PCB surface welding pad, 2, PCBA processing using expired PCB may cause moisture absorption and burst board, 3, PCBA processing using expire
SMT surface mount technology has the following 5 steps: 1. PCB production - this is the actual production stage of PCB with solder points; 2. Deposit solder on the pad to fix the assembly to the plate; 3. With the help of the machine, the components are p
The reasons for the formation of tin beads in PCBA processing: 1. When the PCB board leaves the liquid solder, it is very easy to form tin beads, 2. The second reason for the formation of tin beads is the release of volatile substances in PCB board and so
PCB board temperature resistance test method: In order to ensure the quality of PCB board, it is necessary to carry out temperature resistance test, usually the highest temperature resistance of PCB board is 300 degrees, 5-10 seconds; Over lead-free wave
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