Practical Guide to Rotational Moulding, Third Edition, takes a step-by-step approach to rotomoulding, covering applications, moulds, machinery, materials, and design. This third edition has been thoroughly revised to include the latest advances, including novel materials and moulds, new products, and automation. The book begins with a chapter that introduces the rotational moulding process, analyses advantages and disadvantages, and explores common applications for rotomoulded products. The subsequent chapters provide detailed, methodical coverage of moulds, machinery, materials, and design for functionality, supported by clear illustrations and diagrams. Finally, challenges and future developments are discussed. This hands-on technical guide helps engineers, designers and practitioners to understand all aspects of rotomoulding, with the aim of producing performant end products and parts, with uniform wall thickness and potentially in complex shapes. The book is also of great interest to professionals across the plastics industry, as well as researchers and advanced students in plastics engineering, industrial design, mechanical engineering, chemical engineering, and materials science and engineering. - Provides a strong fundamental understanding of all aspects of the rotational moulding process, from material to finished product - Offers a highly practical combination of technical content and clear illustrations - Covers the latest developments in rotomoulding, including novel materials and moulds, new products, and automated systems
Rotational moulding is a very competitive alternative to blow moulding thermoforming and injection moulding for the manufacture of hollow plastic parts. It offers designers the chance to produce stress-free articles, with uniform wall c098 and complex shapes. Rapra's Practical Guide to Rotational Moulding describes the basic aspects of the process and the latest state-of-the-art developments in the industry.
The last fifty years or more of ethical theory have been preoccupied by a turn to reasons. The vocabulary of reasons has become a common currency not only in ethics, but in epistemology, action theory, and many related areas. It is now common, for example, to see central theses such as evidentialism in epistemology and egalitarianism in political philosophy formulated in terms of reasons. And some have even claimed that the vocabulary of reasons is so useful precisely because reasons have analytical and explanatory priority over other normative concepts - that reasons in that sense come first. Reasons First systematically explores both the benefits and burdens of the hypothesis that reasons do indeed come first in normative theory, against the conjecture that theorizing in both ethics and epistemology can only be hampered by neglect of the other. Bringing two decades of work on reasons in both ethics and epistemology to bear, Mark Schroeder argues that some of the most important challenges to the idea that reasons could come first are themselves the source of some of the most obstinate puzzles in epistemology - about how perceptual experience could provide evidence about the world, and about what can make evidence sufficient to justify belief. And he shows that along with moral worth, one of the very best cases for the fundamental explanatory power of reasons in normative theory actually comes from knowledge"--
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