[China Aluminum Network] General customers are always concerned about these issues. Quality. Performance. Price. Delivery quality. Manufacturing can not be without quality problems, but the bad rates vary.
There are two and a half factors that affect quality in the factory.
The first is the machine. Nowadays, aluminum electrolytic capacitor production machines are updated very quickly, and many old machines are still in service. Generally, in the case of machine problems, the size of the factory can be used to illustrate the problem. The rate of defective products made by old machines and rotten machines is high. It is higher. The machine management of the big manufacturers is still relatively good, so generally speaking a large brand of aluminum electrolyte is more reliable. Of course it is not.
The second is the production process. There is a problem with the production process management and personnel. This is a major cause of factors affecting the quality of aluminum electrolytic capacitors in various manufacturers. The gap between good management and poor management is too great. Just like our common Japanese system. Capacitors and Japanese who are at a glance, they can control the defect rate in the range of 10 PPM. That's why we trust the Japanese capacitors. Some intuitive phenomena during the auditing process can reflect the management level of this manufacturer, such as Staff dress, workshop layout..
There are also problems with derivative brands. Generally speaking, the big brands do better than the small ones. Therefore, we generally trust big brands because of their low defect rate and reliable quality. Of course I Still want to emphasize that this is not a small, fine factory exists.
Another factor that has a particularly large impact on quality is the material. Quality problems in the material directly affect the quality of the finished product. The material problem cannot be completely counted in the factory, so it is half the reason.
Performance, now running the market's business is very powerful in exaggerating performance, leading to a part of the technical know-how customers do not know how to deal with. Worse is the entire brand, the entire plant exaggerates performance together, the specifications are exaggerated. Now domestic brands A lot of doing so, disrupt the industry, and allow customers to be deceived, so that the real contribution to the aluminum electrolytic industry people dumb to eat Huanglian.
At present, for the performance description, the focal point I encountered was the size and life, which is also a ripple current ripple current. After the machine is actually put into operation, the product that does not meet the requirements of the ripple current will be hot. It can be very intuitive. Judging it out.
More terrible is the problem of life span. Everyone in the power supply is the leader of the aluminum electrolytic capacitor. A large part of the life of the electrolytic capacitor is caused by the electrolyte. The electrolyte is a liquid and will constantly evaporate. The temperature will evaporate more quickly. So the aluminum electrolysis Capacitor design engineering is trying to make the electrolyte evaporate slowly, so that the life of the capacitor is longer. The method is not one more is to add more electrolyte, which will enlarge the volume is to speed up the cooling, so that the temperature inside the low point , This can be lining foil or magnify the volume, etc. The third is to enhance the sealing and reduce the volatilization. The pass is to change the waist, replace the rubber plug.
And then another reason is that the capacity decay of aluminum foil affects life. This is a material selection problem.
Is it related to the size, small size, long life aluminum electrolytic existence? I have been skeptical. But there are many domestic manufacturers vowed to say there. I do not know how to argue.. I just aluminum electrolysis The basic principle of capacitance is to deny this. If you do not even meet the basic principles, it would be an argument.
Adding more electrolyte requires a large volume, to speed up the heat dissipation but also to increase the volume, increase the lining foil will also increase the volume slightly, the aluminum foil with a slower capacity decay is higher, and it is also relatively thick, which is also to increase the volume.. In all the conditions of life, only the rubber plug is changed, and the waist is changed to the same volume.. Therefore, the volume dimension is the key to the life of the aluminum electrolytic capacitor.
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