制造管理.pptVIP

CHAPTER # 2 Improved Manufacturing Operations The Manufacturing Process Objective: to transform an idea into a saleable product Steps Design Product Development Quality Control General Management Production Design Product Planning long term process to identify the product areas of interest Product Development concept further explored in relation to possibilities of the company Product Design creates a design on the basis of market-related, functional technical, manufacturing and aesthetics requirements Sequential Engineering Marketing identifies the need for new products, price ranges and their expected performance from customers or potential customers Design and Engineering work independently and develop the technical requirements and final design details Manufacturing, testing, quality control and service groups see the design in an almost complete stage As the manufacturing process is sequential in progression, it is commonly called sequential engineering Sequential Engineering Process Concurrent Engineering Provides a systematic and integrated approach to introduction and design of products so as to ensure that decisions made in the design stage result in a minimum overall cost during its life-cycle Concurrent Engineering Process P2 Potential in theDesign Process Strategies for Minimizing Pollution Avoid adsorptive separations where adsorbent beds cannot be readily regenerated Provide separate reactors for recycle streams, to permit optimization of reactions Consider low-temperature distillation columns when dealing with thermally labile process streams Consider continuous processing when batch cleaning wastes are likely to be significant (e.g., with highly viscous, water-insoluble, or adherent materials) Process ChangesImproved Reactor Design Improve the degree of agitation better mass transfer efficiency use more efficient mixers and baffling systems Insulate the reactors improves temperature control within the reactor Use high efficiency heat exchangers