無取向硅鋼的磁性能計(jì)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(gòu)及織構(gòu)與磁性能的關(guān)系 4
1.3　熱軋條件對(duì)無取向電工鋼軋件織構(gòu)形成的影響 6
1.4　冷軋條件對(duì)無取向電工鋼再結(jié)晶織構(gòu)的影響 7
1.5　有利織構(gòu)控制在冷軋電工鋼生產(chǎn)中的應(yīng)用 10
1.6本文的研究?jī)?nèi)容和目的意義 13
2  實(shí)驗(yàn)方案 15
2.1 實(shí)驗(yàn)材料 15
2.2 再結(jié)晶退火 15
2.3 樣品的制備和金相組織的觀察 15
2.4試驗(yàn)所用的設(shè)備 16
3 再結(jié)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(shí)間的組織觀察 17
4  磁性能計(jì)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(jì)算與數(shù)學(xué)模型的建立 20
4.3 硅鋼性能的定量計(jì)算 24
4.4單晶性能參數(shù)的確定 24
4.5軟件的編制與數(shù)模的處理 25
4.6 計(jì)算結(jié)果與實(shí)驗(yàn)結(jié)果的比較 27
結(jié)論 32
致　　謝 33
參考文獻(xiàn) 34
附錄：計(jì)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(gè)方向上具有相同的磁性而被廣泛用于各種電機(jī)。
磁性與物質(zhì)的微觀結(jié)構(gòu)密切相關(guān)，它不僅取決于物質(zhì)的原子結(jié)構(gòu)，還取決于原子間的相互作用，如晶體結(jié)構(gòu)。硅鋼的組織、織構(gòu)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(jù)單晶體的各向異性，并通過織構(gòu)數(shù)據(jù)，進(jìn)而計(jì)算多晶體材料的宏觀性能是材料織構(gòu)定量分析技術(shù)的最重要應(yīng)用之一。本文通過磁性唯象理論建立硅鋼磁性計(jì)算模型，并據(jù)此模型，編寫了磁性計(jì)算程序。根據(jù)磁性理論對(duì)無取向硅鋼的磁性能進(jìn)行了模擬計(jì)算，研究硅鋼的磁性能和微觀組織的關(guān)系。采用這種方法不僅能直接預(yù)測(cè)硅鋼的磁性能，而且還可以免去復(fù)雜的性能測(cè)試工作，實(shí)現(xiàn)材料性能在線監(jiān)控在生產(chǎn)中的應(yīng)用。
磁性能是硅鋼的最重要的性能指標(biāo)，通過研究磁性能的計(jì)算可將磁性能和晶粒織構(gòu)之間的關(guān)系描述的更精確。計(jì)算結(jié)果表明：磁性模擬計(jì)算的理論值與實(shí)測(cè)值吻合的較好。
 
關(guān)鍵詞：無取向硅鋼；織構(gòu)；磁性能；計(jì)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