汽车开发中涂装同步工程综述

同步工程（Simultaneous Engineering）简称SE,是适应现代科技高速发展和激烈竞争而产生的新的产品开发模式。同步工程的应用有利于缩短产品的开发周期,提高产品质量,降低生产成本以及改善制造柔性。本文主要阐述了汽车开发过程中关于涂装的同步工程的重要性和必要性,以及涂装同步工程的各个阶段中的相关工作。     

简述涂装同步工程中的标杆竞品分析

阐述了涂装同步工程中标杆竞品分析所需要进行的工作内容以及工作方法,指导逆向开发的整车产品涂装同步工程中的标杆竞品车拆解分析工作。     

涂装同步工程在D760车型的应用探讨

同步工程是适应现代科技高速发展和激烈竞争而产生的新的产品开发模式。同步工程可提高质量、降低成本、缩短产品开发周期以及提升生产线的柔性化。本文根据作者参与的D760车型涂装同步工程中积累的一些经验,就D760车型开发中各阶段涂装同步工程中的相关工作进行探讨。     

预着色的LLDPE粉

据“Plastics World,1994,52(3):79报道,美国俄亥俄州辛辛那提的Quantum化学公司新近开发了一种预着色的线性低密度聚乙烯(LLDPE)粉。该系列产品具有各种可供选择的颜色和标准颜色,可供回转熔塑法生产     

爱色丽-您身边的颜色管理专家

爱色丽公司现已收购GretagMacbeth公司及Pantone公司,成为全球颜色科学技术的领导企业,致力于开发,生产,营销和支持包括色彩测量系统,配套软件,色彩标准及服务在内的创新颜色管理解决方案。爱色丽凭借其在颜色创想,选择,测量,配制,     

变色龙策略

灵活的颜色选择,亦适用于小的系列像变色龙一样随时变换颜色,在不久以前还是不可想象的。Degussa开发的最新颜色系统Polytrend ColorInfusion Plus使变色这一梦想借用目前的产品成为可能。借此可使小规模的独立配色不会再因为价格原因而流产。     

爱色丽(上海)色彩仪器商贸有限公司

正爱色丽公司现已收购GretagMacbeth公司及Pantone公司,成为全球颜色科学技术的领导企业,致力于开发、生产、营销和支持包括色彩测量系统、配套软件、色彩标准及服务在内的创新颜色管理解决方案。爱色丽凭借其在颜色创想、选择、测量、配制、交流及匹配上的     

新型色母料运用于药用塑料瓶

通常认为医药材料的颜色只能局限于琥珀色．但是Americhem公司在过去的15年里一直不断努力为新材料开发新的颜色。公司管理者认为色母料就是要为产品提供多样性并且让加工工程更加的高效．所以公司一直致力于为客户研发解决方案。     

浅谈新车型开发过程中车身涂装防腐分析及方法

阐述了新车型开发过程中车身涂装防腐工作的开展,包括设计阶段的涂装同步工程分析、试制阶段的电泳车身拆解验证等方法和措施。对新车型开发过程中的不同阶段采取相对应的方法来提升车身的防腐能力,满足防腐要求。     

涂装SE通过性实例分析

介绍了与汽车开发过程同步进行的汽车涂装同步工程(SE)通过性分析的主要内容,包括机械化设备分析、非标设备分析、电气自动化分析和车间物流分析。     

Prediction of simultaneous contrast between map colors with Hunt's model of color appearance

The objective of this research was development of a quantitative model of simultaneous contrast (induction) to aid selection of sets of easily identified map colors. The model is an extension of R. W. G. Hunt's model of color appearance. Contrasts between central and proximal colors were used to adjust Hunt's lightness, relative redness-greenness, and relative yellowness-blueness measures. Human subject responses to CRT displays in an experiment were analyzed to produce a set of rules for selecting map colors. Rather than predict average perceptions for central/proximal color combinations, acknowledgment was made of the inherent variability in map readers' perceptions of color by developing generalized perception buffers that accounted for at least 90% of test subject responses. The task of selecting colors that will not be confused once they appear with numerous proximal colors on a map thus becomes a task of selecting colors that do not have buffers that overlap in color space. © 1996 John Wiley & Sons, Inc.     

CHALLENGES AND INNOVATIONS IN REACTION ENGINEERING

The importance of reaction engineering in generating a myriad of products on which developed societies depend is outlined. The challenges of a political, economic, and technical nature that need to be addressed in rendering conversion of raw materials into desired products that are more environmentally friendly and sustainable are briefly discussed. It is shown that multiphase reactors are prevalent in all applications, and improvements in the reactor material and energy efficiencies lead to more environmentally benign processes. This requires, in addition to the selection of green process chemistry, systematic implementation of the multi-scale reaction engineering methodology to accomplish proper reactor type selection and scaleup for commercial applications. It is also illustrated that recent innovations in multiphase reaction engineering basically utilize two key concepts: process intensification (e.g., enhancement in mass and heat transfer rates) and simultaneous reaction and separation. Examples of these are discussed, such as micro-reactors, reactive distillation, etc. It is also shown that commercialization of bench-scale discoveries requires either scaleup in parallel or vertical scaleup. New tools for visualization of opaque multiphase flows and development of appropriate rational phenomenological multiphase reactor models for scaleup and design are also briefly discussed.     

Roasting of Barley and Coffee Modeled Using the Lumped-Reaction Engineering Approach (L-REA)

Roasting is a complex process of simultaneous heat and mass transfer involving water removal as well as color and flavor changes. In this study, the lumped-reaction engineering approach (L-REA) was implemented to model roasting of barley and coffee. The approach was able to capture the details of the process kinetics and the predictions matched the experimental data well. Benchmarks against the diffusion-based model indicated that the L-REA yielded comparable or even better results. As such, the L-REA approach can be adopted for simulation of the roasting process and optimization or model-based control strategies.     

同步工程中涂装工艺对汽车产品开发的影响

同步工程是对产品开发及其相关过程(如制造和支持等)进行集成、并行的系统化工作模式。本文将同步工程应用到汽车产品开发中,结合汽车前处理、阴极电泳涂装工艺实践,提出了在汽车车身设计沥液孔、防气泡孔、防锈蜡用孔以及钣金间隙、车身防水和防电磁屏蔽孔等的新思路。     

我国色母粒市场现状和发展前景

我国的色母粒生产厂有400多家,生产能力30万t/a,98％以上企业采用干法生产工艺。全国色母粒的年需求不到12万t,生产能力严重过剩。到2005年,预计塑料工业需色母粒15万～24万t,建筑材料需1万t,工程塑料需4万t,薄膜需3万t。国外色母粒的市场主要集中在西欧、北美和日本,生产企业多是跨国公司或世界500强企业。预计美国色母粒产量增长速度将会高于塑料工业,并且工程塑料用色母粒的利润将会大于其它树脂用色母粒的利润。最近开发成功的色母粒原料有色砂、微粉蜡和茂金属催化合成的树脂。色母粒向颜料高浓度发展和色母粒与添加剂相结合开发多功能产品是色母粒今后的发展方向。     

Color selection in the consideration of color harmony for interior design

A color selection method that considers subjective principles is becoming more and more necessary in a computer‐based color management system. However, one from an engineering perspective has received limited attention. Previously, we developed an approach to measure the degree of color harmony by the similarity of a pleasure‐related function, CLD (color linguistic distribution), to a RHD (reference harmony distribution) on a one‐dimensional image scale of EXCITING–CALM. Following this approach, a new color selection system is presented in this article by modulating the CLD on the image scale. The procedure used is to encode an inharmonious image as a CLD, then it is modulated and referred to as a RHD, called an imagery specification. Finally, the specified CLD is decoded and reconstructed as a harmonious image in an operated color space. Four types of RHD are compared: three ideal fuzzy sets scaled to extremely calm, quite calm, and slightly calm, and the practical one measured from social trends. For verification, the harmony grade of the decoded image can be measured based on the referred RHD. As a result, four times the harmonic degree of the decoded image is gained than the originally encoded one. For application purposes, the proposed system is suitable for applications related to human subjectivity. © 2000 John Wiley & Sons, Inc. Col Res Appl, 25, 20–31, 2000     

新车型开发中的涂装SE分析

在新车型开发的同时,对汽车生产的工艺性和操作性进行分析,能有效减少后期的设计变更以及设计研发费用,这就是所谓的"同步工程"(SE)。阐述了涂装过程的SE分析。     

凸台结构在车身设计中的运用

简要介绍了在汽车新产品开发工程化设计阶段,运用同步工程（SE）对车身结构的防气泡性、沥液性、电泳成膜性进行分析时,针对在前处理、电泳过程中可能出现的兜气、积液、电泳不良等车身结构缺陷,引入凸台结构,并根据车身不同部位的结构特点采用不同的凸台结构进行优化设计,消除或减少影响涂装质量的车身结构缺陷,对降低整车开发成本,缩短新产品开发周期具有十分重要的意义,     

涂装工艺对SE标准的影响

介绍了在汽车同步开发过程中,涂装SE分析标准与车身涂装工艺、生产设备和作业方。式之间的联系。强调了涂装SE分析标准必须结合具体的生产线体进行问题识别和解决。     

Identification and formalization of knowledge for coloring qualitative geospatial data

Creating a satisfying qualitative color scheme from scratch may be difficult for novice mapmakers and experts. A probability‐based method is proposed to identify knowledge regarding qualitative color selection from readily available color schemes and formalize the discovered knowledge to assist in color creation. An unsupervised method to extract the general trends of color selection is presented, and the issue of qualitative color selection is translated into a multi‐constraint optimization problem. A feasible solution for achieving the global optimum is then provided. A probability‐based method is also proposed to match abstract color values with specific mapping features. This proposed approach is evaluated in a case study. The results of the case study suggest that the proposed method allows users to create qualitative color schemes more efficiently and confidently.