退火

Based on the reason on the annealing oxidation for hot rolled silicon steel of Taiyuan Iron and Steel Co.

通过对太钢热轧硅钢退火氧化的原因进行分析，提出了相应的改进措施，收到了良好的效

Three different heating methods have been used for the study of low temperature hot roll oriented silicon steel bearing copper.

为研究含铜低温热轧取向硅钢再结晶组织，采用3种不同的初次再结晶退火工艺进行热处理。

Simulated annealing algorithm ; shearing machine ; mechanism optimization

模拟退火算法；飞剪机；机构优化

3Sn(C72500) alloy after shearing deformation and then annealed at 550 ℃ for 2 h were observed by OM and SEM.

采用金相显微镜和扫描电镜研究Cu-9Ni-2.3Sn(C72500)合金经剪切变形后合金切面的微观组织以及随后在550℃退火2 h后切面的组织变化。

The shear plane microstructures of Cu-9Ni-2.3Sn(C72500) alloy after shearing deformation and then annealed at 550 ℃ for 2 h were observed by OM and SEM.

摘 要：采用金相显微镜和扫描电镜研究Cu-9Ni-2.3Sn(C72500)合金经剪切变形后合金切面的微观组织以及随后在550 ℃退火2 h后切面的组织变化。

In shaft hole ensures the key requirement in coaxiality of holes.

采用国际领先的制造工艺，端板与桶体的焊接加工均采用整体退火处理，防止焊接后的&应力变形&；利用大型镗床加工端板轴孔，确保了轴孔的同轴度的关键要求，使产品的

We use the total annealing process on the welding of end plate and body, to prevent the stress and deformation incurred by welding. The usage of boring lathe in shaft hole ensures the key requirement in coaxiality of holes. All these advanced manufacturing arts enhance the precision of performance and

采用国际领先的制造工艺，端板与桶体的焊接加工均采用整体退火处理，防止焊接后的&应力变形&；利用大型镗床加工端板轴孔，确保了轴孔的同轴度的关键要求，使产品的精度得以大幅度提高，关键部件的使用寿命大大延长。

We use the total annealing process on the welding of end plate and body, to prevent the stress and deformation incurred by welding. The usage of boring lathe in shaft hole ensures the key requirement in coaxiality of holes. All these advanced manufacturing arts enhance the precision of performance and extend the life of key components greatly.

采用国际领先的制造工艺，端板与桶体的焊接加工均采用整体退火处理，防止焊接后的&应力变形&；利用大型镗床加工端板轴孔，确保了轴孔的同轴度的关键要求，使产品的精度得以大幅度提高，关键部件的使用寿命大大延长。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

Ni0.5Zn0.5Fe2O4 nano-crystalline was prepared by sol-gel self-propagating combustion method, and sintered at 550, 800 and 1050 ℃, respectively. The analysis methods of X-ray diffraction and microwave network analyzer were used to investigate the products after annealing.

中文摘要：采用溶胶-凝胶自燃烧法制备了Ni0.5Zn0.5Fe2O4纳米晶，将其分别在550、800和1050 ℃下二次退火2 h，利用XRD和微波矢量网络分析方法对二次热处理产物及其电磁性质进行了研究。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。