Magnetic ring inductance to purchase case to common problems

For the inductance of the raw material price, there is few factory show out, although much of the price of the raw material of the inductance on the sales market is completely transparent, but sometimes, will be released, the original price will inevitably cause some inconvenience. After all, is about profit inductance manufacturer. But, as the inductance manufacturer of everyone, can show some gossip. We don't speak much, is simple and easy seems to be a look, a circular and the inductance of the raw material prices, the first, say the circular inductive magnetic core price, with a 6 * 8 copper inductive analysis of characteristics of magnetic core, the core of the cost of 7 - in you company 8 a penny a, as if is not very high, but relative to other manufacturers, so the price is already very high, the manufacturing industry in the lowest price of about 1 - magnetic core 2 cents. As a result, there's always going to deal with a situation in which some customers inductance manufacturer it is concluded that the inductance of the price is low, makes the circular inductance is no problem, but after the delivery of the goods with problem more and more circular and inductance. Fusion said before after the copper price, and then discuss about the way, it makes for inductance goods no problem, this issue inductance manufacturer is to ensure that can be traded and deliberate production or goods from elsewhere 'production'. With that manufacturer to sign a contract, will be the early is not easy to appear problem, and then permanent magnetic ring inductance problem. This because, inductance manufacturer in order to reduce cost, quietly replaced the inductance 'a little' production material. Change the inductance of the first magnetic core, production again after a period of time, then the inductance of the silk covered wire are also changing. Deal with inductor manufacturers, customers even for batch inductance to conduct statistical investigation, also can appear the status of all standard basis. And the next batch of the quality of the inductance is also have different change. An magnets deliver and can ensure the delivery of inductance are all the same, we can accept sample testing, inductors are used imported raw materials production, to ensure the quality of inductance is consistent.