The disadvantages of the common plug of the power cord plug and the cause of the heat generated during the use of the power supply

Common maladies of poor molding

First, the amount of injection is insufficient
1. Injection volume, insufficient plasticity 2 , insufficient rubber feed 3 , injection pressure too low 4 , rubber temperature too low 5 , injection speed too fast

Second, the finished product has flash
1 , the injection pressure is too high 2 , the mold closing pressure is too small 3 , the injection volume is too large

4 , the second pressure time is too long 5 , the injection speed is too fast

Third, shrinking phenomenon
1 , Injection pressure is too low 2 , secondary pressure time is too short

3 , The injection speed is too slow 4 , the temperature of the compound is high

Fourth, the flow of traces
1 , The temperature of the compound is low, resulting in poor fluidity 2 , and the injection speed is too slow

3 , the secondary pressure is too low 4 , the secondary pressure time is short

Five, contain bubbles
1 , Low injection pressure 2 , low secondary pressure 3 , short secondary pressure time

4 , the injection speed is too fast too fast

Sixth, bending deformation
1 , High injection pressure 2 , high secondary pressure 3 , long secondary pressure

4 , the temperature of the compound is low 5 , the injection speed is slow 6 , and the cooling time is too short.

It is a common phenomenon that the power plug is heated during use. For example, the most common mobile phone charger, when your mobile phone is charging, when you charge the plug, you will find that the plug of the charger is very hot, then What causes the plug to heat up during use? The so-called prevention of hot plugs and scalds that people say verbally is actually a problem of plug-in wiring. Therefore, in the process of making the power cord plug , it is necessary to do the wiring work. The plug should be tight and without stacking. No twists, no cracks, no high or low surface requirements, as much as possible to make the power plug perfect. The punching of different inserts is carried out by various molds of different sizes and shapes. If you want to check in the number, what kind of mold is used for the insert, if you use another type of mold to punch the corresponding insert, there will be problems such as looseness and exposed copper, so it must be produced. A power plug like the big South Africa, the terminal is relatively large, you need a thick copper wire to fix, but if the wire diameter required by the customer is relatively small, then how to deal with it? The length of the stripped copper can be increased, and then the copper wire is folded in half, thereby increasing the thickness of the copper wire, so that the terminal can be firmly gripped, and it will not be loosened, and the next manufacturing process. Another example is the British assembly plug. In the work, first pay attention to the part of the power cord copper head, and then carry out the assembly step. During the assembly process, pay attention to the length of the power cord plugged into the plug, and pay attention to the tightening degree of the screw. If it is too loose, the upper and lower covers of the plug will move. All in all, find the cause of the plug heating, if it is not the cause of the current overload, it is the reason of the plug itself.