Super Core 超级铁芯
Super Core is manufactured using an innovative process that is completely different from that for conventional silicon steel sheets.
These are the highest grade, non-oriented magnetic steel sheets available.
Conventional silicon steel sheets have a Si (silicon) content of 3.5% or less. It has long been known that the magnetic characteristics of a silicon steel sheet improve as the Si content increases, peaking at 6.5%.
However, it has been impractical to produce thin steel sheets with a Si content of over 3.5% because the steel tends to harden and become brittle. In 1993 JFE Steel solved this production problem through the adoption of a process called the CVD process, and successfully introduced the first 6.5% Si steel sheets (JNEX-Core) to the world. In order to meet new demands, this technology has continued to be developed, leading to the commercial production of gradient high-silicon steel sheets with superior high-frequency characteristics (JNHF-Core).
1993年，JFE钢铁采用CVD工艺法，解决了这个制造难题。 6.5％的硅钢片(JNEX铁芯)的工业化也首次在世界上取得了成功。 此外，为了满足新的需求，进一步发展此技术，高频率特性的卓越梯度高硅钢片(JNHF铁芯)也实现了商业化批量生产。
JNEX-Core is the highest-grade non-oriented magnetic steel sheets manufactured with a production method (CVD process) that is completely different from that for conventional silicon steel sheets, allowing a previously impossible Si content of 6.5%
|Low Core Loss
|Core loss in high-frequency ranges is extremely low. This allows for low heat generation and size reductions for magnetic components such as high-frequency reactors and transformers.
|Magnetostriction which causes noise and vibration is nearly zero. This enables significant noise reductions for magnetic components such as reactors and transformers.
|The permeability is extremely high across a wide range of frequencies, making it highly suitable for use in shield applications and CT.
|The high-temperature processing provides thermal stability. Since there is minimal deterioration of the properties due to machining, so stress-relieving anneals are not required.
|There is virtually no difference in the characteristics between the rolling direction (Ldirection) and the transverse (C-direction). Therefore, this can be used in a wide range of applications, from stationary machines to rolling machines.
10JNEX900磁化曲线B-H magnetizing curve
For the JNHF-Core, the siliconization technology (CVD process) used for JNEX-Core has been further developed, leading to even greater lower core loss in the high-frequency ranges.
|Low Core Loss|
|For high-frequencies in excess of 5 kHz, out shines even JNEX-Core for low core loss. |
|Excellent workability for pressing, bending, stamping, etc. |
|There is virtually no difference in the characteristics between the rolling direction (L-direction) and the transverse direction (C direction).|
Therefore, this can be used in a wide range of applications, from stationary machines to rolling machines.
|High-saturation magnetic flux density|
| Has a high saturation magnetic flux density of 1.85 ~ 1.94 T Using this material in a reactor takes full advantage of the superior DC superimposition characteristics. |
10JNHF600磁化曲线B-H magnetizing curve