18277015. NON-ORIENTED ELECTRICAL STEEL SHEET, MOTOR CORE, METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING MOTOR CORE simplified abstract (NIPPON STEEL CORPORATION)

NON-ORIENTED ELECTRICAL STEEL SHEET, MOTOR CORE, METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING MOTOR CORE

Organization Name

NIPPON STEEL CORPORATION

Inventor(s)

Ichiro Tanaka of Tokyo (JP)

Takeaki Wakisaka of Tokyo (JP)

Tesshu Murakawa of Tokyo (JP)

Yoshiaki Natori of Tokyo (JP)

Hiroshi Fujimura of Tokyo (JP)

NON-ORIENTED ELECTRICAL STEEL SHEET, MOTOR CORE, METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING MOTOR CORE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18277015 titled 'NON-ORIENTED ELECTRICAL STEEL SHEET, MOTOR CORE, METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING MOTOR CORE

Simplified Explanation

The abstract describes a non-oriented electrical steel sheet with specific characteristics related to crystal structure, grain size, and hardness.

• The non-oriented electrical steel sheet has an area fraction of crystal structure A with grain size of 100 μm or more between 1% to 30% in a cross section parallel to the rolled plane.
• The average grain size of crystal structure B, different from crystal structure A, is 40 μm or less.
• The Vickers hardness HvA of crystal structure A and Vickers hardness HvB of crystal structure B satisfy a specific equation.

Potential Applications

This technology could be applied in the manufacturing of electrical transformers, electric motors, and other electrical equipment where non-oriented electrical steel sheets are used.

Problems Solved

This innovation solves the problem of achieving optimal grain size and hardness in non-oriented electrical steel sheets, which are crucial for their performance in electrical applications.

Benefits

The benefits of this technology include improved efficiency and performance of electrical equipment, reduced energy loss, and enhanced durability of non-oriented electrical steel sheets.

Potential Commercial Applications

Potential commercial applications of this technology include the production of high-quality non-oriented electrical steel sheets for use in various electrical devices and equipment.

Possible Prior Art

One possible prior art could be the use of different heat treatment processes to modify the grain size and hardness of electrical steel sheets. However, the specific combination of characteristics described in this patent application may be unique.

How does this technology compare to existing methods for improving the properties of non-oriented electrical steel sheets?

This article does not provide a direct comparison with existing methods for enhancing the properties of non-oriented electrical steel sheets. Further research or testing may be needed to evaluate the effectiveness of this technology in comparison to other approaches.

What are the potential challenges in implementing this technology on an industrial scale?

The article does not address the potential challenges that may arise in scaling up the production of non-oriented electrical steel sheets with the specified characteristics. Factors such as cost, feasibility, and compatibility with existing manufacturing processes could be important considerations in industrial implementation.

Original Abstract Submitted

There is provided a non-oriented electrical steel sheet having a predetermined chemical composition, in which an area fraction of a crystal structure A composed of crystal grains having a grain size of 100 μm or more is 1% to 30% in a cross section parallel to a rolled plane of the non-oriented electrical steel sheet, an average grain size of a crystal structure B which is a crystal structure other than the crystal structure A is 40 μm or less, and a Vickers hardness HvA of the crystal structure A and a Vickers hardness HvB of the crystal structure B satisfy Equation 1 ((HvA+HvB)/2−(HvA+HvB)/4≤7.0).