公开(公告)号：US4520335A

公开(公告)日：1985-05-28

申请号：US482681

申请日：1983-04-06

Applicant: Gary C. Rauch ,  Robert F. Krause

Inventor： Gary C. Rauch ,  Robert F. Krause

IPC: H01F27/24 ,  H01F27/245 ,  H01F27/25 ,  H01F41/02

CPC classification number: H01F41/0226 ,  H01F27/245 ,  H01F27/25 ,  H01F2003/106

Abstract: Ferromagnetic cores and electric transformers having a ferromagnetic core having at least two ferromagnetic circuits are described. At least one ferromagnetic circuit is composed of a ferromagnetic amorphous material and at least one ferromagnetic circuit is composed of a grain oriented electrical steel. The amorphous material having a saturation induction which is lower than that of the grain oriented steel. Methods of fabricating the core and using the transformer are also described.

Abstract translation: 描述具有至少两个铁磁电路的铁磁芯的铁磁芯和电变压器。 至少一个铁磁电路由铁磁性非晶材料构成，至少一个铁磁电路由晶粒取向电工钢构成。 具有比晶粒取向钢低的饱和感应的无定形材料。 还描述了制造芯和使用变压器的方法。

公开(公告)号：US4251295A

公开(公告)日：1981-02-17

申请号：US38359

申请日：1979-05-11

Applicant: Karl Foster ,  Donald R. Thornburg ,  Gary C. Rauch

Inventor： Karl Foster ,  Donald R. Thornburg ,  Gary C. Rauch

IPC: C21D8/12 ,  H01F1/16 ,  H01F1/00

CPC classification number: C21D8/1233 ,  H01F1/16 ,  C21D8/1261 ,  C21D8/1266 ,  C21D8/1272

Abstract: This is an ingot alloy composition and method suitable for making a low-alloy iron having desirable magnetic characteristics suitable for electrical applications such as transformers cores. The ingot alloy has relatively high (0.012-0.020%) sulfur and thus can be prepared with reduced melting cost (as compared to ingot alloys which are to have low sulfur content). To provide for good sulfur removal during processing, however, the manganese content of the ingot alloy must be kept very low (less than 0.01%, if the final annealing is to be performed at about (800.degree.-1000.degree. C.). The ingot alloy also contains 0.1-2% silicon, 0.1-2% chromium, 0.005-0.030% carbon, less than 0.004% oxygen and the balance essentially iron. The method provides for hot-rolling the above described ingot alloy at 900.degree.-1200.degree. C., annealing for 3-10 hours at 750.degree.-900.degree. C., cold-rolling with a 50-75% reduction, annealing for 3-10 hours at 750.degree.-900.degree. C., and cold-rolling with a 50-75% reduction to final thickness. The final annealing is performed for 24-72 hours at 800.degree. to 1000.degree. C.

Abstract translation: 这是适用于制造具有适合于诸如变压器芯之类的电气应用的理想磁特性的低合金铁的锭合金组成和方法。 铸锭合金具有相对高的（0.012-0.020％）的硫，因此可以以降低熔融成本（与具有低硫含量的锭合金相比）来制备。 然而，为了在加工过程中提供良好的硫去除，铸锭合金的锰含量必须保持非常低（如果在约（800-1000℃）下进行最终退火，则其含量必须低于0.01％） 锭合金还含有0.1-2％的硅，0.1-2％的铬，0.005-0.030％的碳，小于0.004％的氧，余量基本上是铁，该方法提供了上述铸锭合金在900°-1200℃的热轧 ℃，在750-900℃退火3-10小时，冷轧减少50-75％，在750-900℃下退火3-10小时，并用 最终退火时间为50-75％，最终退火温度在800〜1000℃下进行24-72小时。