Production method of non-oriented silicon steel for agricultural motor

Abstract

The invention relates to a production method of non-oriented silicon steel for an agricultural motor. The production method comprises the steps of molten steel chemical component design, a hot rolling process, a cold rolling process and the like. The molten steel comprises the following chemical components: less than or equal to 0.04% of C, 0.35-0.55% of Si, 0.10-0.30% of Mn, 0.02-0.06% of Als, less than or equal to 0.030% of P, less than or equal to 0.0040% of S, less than or equal to 0.003% of O, less than or equal to 0.003% of N and the balance of Fe and inevitable inclusions. Compared with common non-oriented electrical steel 50BW1300 currently used in household motors, the silicon steel produced through the method has the advantages that the magnetic induction is improved by 0.02 T or above, the design that the content of common C is smaller than or equal to 0.040% is adopted, deep decarburization is not needed, the cost of the steelmaking procedure is greatly reduced, Al-free and P-free and low-Mn content is adopted, the alloy cost is reduced, and compared with common 50BW1300 non-oriented electrical steel products, the production cost is greatly reduced.

Description

Technical field [0001] The present invention relates to the field of agricultural motor technology, and more particularly to a production method for non-replenishing silicon steel for agricultural motors. Background technique [0002] The agricultural motor is not taking electrical steel with a conventional number of electromagnetic properties, and requires lower production costs than conventional grades. [0003] At present, the existing agricultural motor has no need to use the ordinary 50BW1300-grade number of free silicon steel. It uses ultra-low C content design, C ≤ 0.005%, and the steelmaking process needs to use a deep off-carbon process, and 50bW1300 is not taking silicon steel to add a higher amount. Al, the content is generally 0.20 ~ 0.35%, and the P-element content of 50bW1300 no toilet silicon steel is generally 0.03 to 0.06%, and the cost of manufacturing cost and raw material increase is increased significantly. Therefore, existing agricultural motors have certain...

AI Technical Summary

Problems solved by technology

[0003]At present, the existing non-oriented silicon steel for agricultural motors uses ordinary 50BW1300 non-oriented silicon steel, which is designed with ultra-low C content, C≤0.005%, and the steelmaking process needs to use Deep decarburization process, and 50BW1300 non-oriented silicon steel needs to add a relatively high amount of Al, the content is generally 0.20-0.35%, at the same time, the P element content of 50BW1300 non-oriented silicon steel is generally 0.03-0.06%, the production cost and raw material cost are both A substantial increase

Therefore, there are certain defects and deficiencies in the existing non-oriented silicon steel for agricultural motors. How to greatly reduce the manufacturing cost under the premise of meeting the quality requirements will become the key direction of research.

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