Engineer of Automatic welding machine equipment knows that automatic welding machine equipment mainly relies on the increase in the temperature of the soldering iron tip to melt the tin wire and solder the tin to the product. Therefore, the soldering iron tip plays an important role in the welding machine, so why do some of us have the situation that the solder does not flow when using the automatic welding machine equipment? How do we solve this situation? Now for You answer.
Anyone who has been in contact with automatic welding machine equipment knows that automatic welding machine equipment mainly relies on the increase in the temperature of the soldering iron tip to melt the tin wire and solder the tin to the product. Therefore, the soldering iron tip plays a pivotal role in the welding machine.
1.Appropriate amount of soldering tin:
The amount of solder immersed according to the size of the solder joint is sufficient to cover the object to be soldered. A smooth solder joint is formed. The solder can not be enough to be added once. However, the tip of the soldering iron must be removed after the previous solder has been dissolved together. Some people build up the solder like a swallow's nest when soldering. The result is soldering. A lot of solder is not strong.
2. Use less solder paste:
Because it is an acidic aid, the solder paste should be wiped off after soldering, otherwise it will seriously corrode the circuit and cause the solder joints to separate. When using rosin-free solder bars, rosin is a better solder. Dip the soldering iron into the solder and then touch the rosin to quickly solder. Or use 95% alcohol and rosin to mix a drop of flux when soldering. In addition, the solution can also be brushed on the clean solder joints and printed circuit boards to make the board bright as before.
3. Scrape first and then weld:
There is oil stains or rust on the leads of the parts to be welded. Eating tin is not easy. Even if the solder is not strongly "mushy", the result is wrong soldering. Scrape before the flux. Dip the pins into the rosin, and rub the pins back and forth with the tip of a tin-containing electric soldering iron until the pins are coated with a thin layer of solder. Nowadays, the solderability of most electronic components is very good, so manual soldering does not need to be dripped (the premise must use solder wire with flux). For improper storage of components, causing oxidation or dirt on the component pins, then Need to drip tin.
4. Stabilize without shaking:
The solder must be firmly fixed and clamped, and must not be shaken during the solidification stage. Shaking in the solidification stage is likely to produce false welding. The solder joints are like tofu slag. In order to stabilize the wrist, sit on a support. Sit or stand upright.
5. Master temperature skills:
If the temperature is not enough, the solder wire has poor fluidity and is easy to solidify. If the temperature is too high, it is easy to drip. The solder joints cannot hold the solder.
a. If the temperature is appropriate, use a soldering iron with a power corresponding to the size of the object.
b. In order to control the heating time, the soldering iron tip should be pressed tightly with solder. The object to be soldered is heated, and when the solder tape automatically flows from the soldering tip to the object to be soldered, it indicates that the heating time is up. At this time, quickly remove the soldering iron tip, leaving a bright and smooth solder spot. Remove the soldering iron tip, the solder joint cannot retain the solder. It means that the heating time is short, the temperature is not enough, or the solder joint is too dirty. Solder before the soldering iron tip is removed The temperature is too high for a long heating time.