加工处理

The research situation of waste water treatment of gum rosin process ing at home and abroad was generally summarized.

概述了国内外对松脂加工废水治理的研究情况，系统分析了松脂加工废水的来源及特点，介绍松脂加工废水治理方面的成功方法和经验，通过分析生产过程的监控数据，为我国松香行业的污水处理提供了经验和依据。

The rencent processing technology of low-foamed sheet of rigid polyvinyl chloride is expounded mainly in splinterless processing, mechanical processing, connecting, thermoforming , surface treatment and so on, which may be some help to the application of low-foamed sheet of rigid PVC.

主要从板材的无屑加工、机械加工、连接、热成型、表面处理等几方面对硬质聚氯乙烯低发泡板材在现阶段的加工技术进行了阐述，以期对硬质PVC低发泡板材的应用有所帮助。

In high-speed machining process , the overshoots often occur in the tool path and the machining accuracy is affected .

高速加工过程中，在刀具路径上容易产生过冲，影响加工精度，因此必须提前对加工速度进行优化处理。

Numerical control is transferred to the puncher of the tower (2, the intersection of processing and the intersection of board and pieces of the intersection of 1.25X3 and rice), the intersection of numerical control and the intersection of laser and cutting machine, the intersection of numerical control and plasma / the intersection of flame and cutting machine, numerical control roll over advanced apparatuses such as the curved machine (100TX3.2 rice),etc., there is ordinary puncher of large tonnage, while being ordinary, have spraying and electroplate craft at the same time, possess panel beating, machine add, weld and surface deal with, assemble the one-stop service, can meet to process demand is one comprehensive relatively better processing forming a complete set enterprise multi-level customer in an all-round way.

既有数控转塔冲床（2台，加工板幅1.25X3米）、数控激光切割机、数控等离子/火焰切割机、数控折弯机（100TX3.2米）等先进设备，又有大吨位普通冲床、普通折弯机和车、铣、刨、磨、线切割、弯管、卷圆、等离子切割等机械设备以及二保、氩弧、网焊等各类焊接设备，同时拥有喷涂和电镀工艺，具备钣金、机加、焊接、表面处理、装配一站式服务，能全面满足多层次客户的加工需求，是一家综合性较强的加工配套型企业。

Features contain information and rules describing conditions, such as how and where material removal should occur, cutting depths, whether to use climb cutting or not, whether to spot drill or center drill, and preferred machining strategies for roughing and finishing.

加工特征包含了加工条件信息和规则，例如在何处和如何移除材料；切削深度；是否采用同向铣削；采用锪孔钻还是中心孔钻；以及优选的粗糙度和表面处理加工策略。

In the NC machining process, due to processing of the object complex and diverse, especially the contour shape of the curve and location of the ever-changing, with improvements in materials are different in different quantities and many other factors, the specific parts in the development of processing programs, should be a detailed analysis and differential treatment, flexibility.

在数控机床加工过程中，由于加工对象复杂多样，特别是轮廓曲线的形状及位置千变万化，加上材料不同、批量不同等多方面因素的影响，在对具体零件制定加工方案时，应该进行具体分析和区别对待，灵活处理。

This text mainly introduced the UG basic entity to set up the basic operation of mold and curved face shape;The software of UG CAM weaves the operation process of distance automatically;The UG CAM medium-sized chamber milling、curved face outline milling ...etc.

本文主要介绍了UG 基本实体建模和曲面造型的基本操作；UG CAM 软件自动编程的操作流程；UG CAM 中型腔铣、曲面轮廓铣等加工类型的自动编程方法；UG CAM 后置处理方法；曲面零件在加工中心上的加工工艺规程等。

The third, the 3D design and assembling technology based on UGII was investigated in this paper. At last, the paper studied the CAM application technologies, directly created 3D model, including the creation method of cutter location file directly from the 3D model, the NC post processing, etc. The method of generating user final feature lib used in refrigerator mould based on UG II was also discuss in this paper, several examples for lib creation was given as an illustration.

探讨了基于UGⅡ软件的三维产品设计技术、装配设计技术；最后，探讨了从三维产品模型直接生成刀位源文件，并进行数控加工的CAM技术的实现，生成数控加工刀位源文件和NC加工后置处理程序；探讨了基于UGⅡ软件的冰箱吸塑模的用户特征库的建立，并给出了建库的几个实例。

A variety of processing equipment company, with 85 major processing equipment (vehicles, milling, planing, grinding, boring, hobbing, gear shaper, shearing, bending, forging, hydraulic forming, surface treatment, etc.), electronic instruments and meters 31 units, and the introduction of foreign advanced CNC turret punch press machining centers and CNC machine tools made in China, argon welding equipment to ensure product consistency.

公司各种加工设备齐全，拥有主要加工设备85台（车、铣、刨、磨、镗、滚齿、插齿、剪切、折弯、锻造、液压成型、表面处理等），电子仪器仪表31台，并引进国外先进的数控转塔冲床加工中心及国产的数控机床，氩弧焊接设备，确保产品的一致性。

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。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。