無取向硅鋼的磁性能計算


目  錄
引  言 3
1  無取向電工鋼概述 4
1.1 電工鋼 4
1.2  電工鋼織構及織構與磁性能的關系 4
1.3　熱軋條件對無取向電工鋼軋件織構形成的影響 6
1.4　冷軋條件對無取向電工鋼再結晶織構的影響 7
1.5　有利織構控制在冷軋電工鋼生產中的應用 10
1.6本文的研究內容和目的意義 13
2  實驗方案 15
2.1 實驗材料 15
2.2 再結晶退火 15
2.3 樣品的制備和金相組織的觀察 15
2.4試驗所用的設備 16
3 再結晶組織觀察 17
3.1不同溫度退火后的顯微組織 17
3.2 不同退火時間的組織觀察 17
4  磁性能計算 19
4.1 磁晶各向異性能的唯象理論 19
4.2 磁晶各向異性能的計算與數學模型的建立 20
4.3 硅鋼性能的定量計算 24
4.4單晶性能參數的確定 24
4.5軟件的編制與數模的處理 25
4.6 計算結果與實驗結果的比較 27
結論 32
致　　謝 33
參考文獻 34
附錄：計算源程序 36
 

摘  要
硅鋼板是電力、電子和軍工事業(yè)中不可缺少的重要軟磁合金。無取向硅鋼，由于其在各個方向上具有相同的磁性而被廣泛用于各種電機。
磁性與物質的微觀結構密切相關，它不僅取決于物質的原子結構，還取決于原子間的相互作用，如晶體結構。硅鋼的組織、織構與硅鋼的磁性能有著密切的聯(lián)系，是決定硅鋼磁性能的主要因素。
根據單晶體的各向異性，并通過織構數據，進而計算多晶體材料的宏觀性能是材料織構定量分析技術的最重要應用之一。本文通過磁性唯象理論建立硅鋼磁性計算模型，并據此模型，編寫了磁性計算程序。根據磁性理論對無取向硅鋼的磁性能進行了模擬計算，研究硅鋼的磁性能和微觀組織的關系。采用這種方法不僅能直接預測硅鋼的磁性能，而且還可以免去復雜的性能測試工作，實現材料性能在線監(jiān)控在生產中的應用。
磁性能是硅鋼的最重要的性能指標，通過研究磁性能的計算可將磁性能和晶?？棙嬛g的關系描述的更精確。計算結果表明：磁性模擬計算的理論值與實測值吻合的較好。
 
關鍵詞：無取向硅鋼；織構；磁性能；計算程序

Abstract
Silicon steel is an important soft magnetic alloy in electricity, electronics and military. Non-oriented silicon steel, for the same magnetic is widely used in various motor.
The magnetism is closely related to micro-structure. It not only depends on the atomic structure of materials, but also on the interaction between atoms, such as the crystal structure. The silicon steel's texture and texture structure which are closely linked with the magnetic properties is a major factor of magnetic properties of silicon steel decision.
According to the single crystal anisotropy and texture data, It is found that the macro- performance of polycrystalline material is one of the most important application of the material texture's quantitative analysis. In this paper, the magnetism's calculating model which the magnetic procedure is got is by established based on the magnetic phenomenological theory .According to the theory of magnetic , The non-oriented silicon steel's magnetic properties can be simulated, and the relationship between silicon steel magnetic and micro-organizations  can be researched. This approach not only can directly forecast the silicon steel magnetic, but also can excuse the complex performance tests and realize the applications of on-line monitoring of performance in production.
Magnetic properties is the most important performance indicators of silicon steel. By the study, the relationship between magnetic properties and texture can be described accurately. The results show that: the magnetic simulation's theoretic date coincide the measured date coincide well.

Keywords:
 non-orientation silicon steel; texture; magnetic property; computational procedure