The present needs the past to shape the future. As in many areas of life, heat treatments used in the past have to be studied to understand the present. The resulting conclusions can be used to shape the future. But how did heat treatment develop into a key branch of the economy in spite of its initial inadequacies? This question is the subject of this book, written by Professor Emeritus Dr.-Ing. Hans Berns and published by Härterei Gerster AG. It begins with the production of sponge iron in a bloomery hearth during the pre-Christian era and its subsequent carburisation as an essential requirement for hardening. During the Modern Period, in contrast, the high carbon content of the crude iron had to be painstakingly reduced to a level that allowed forging and hardening. The invention of mild steel in 1856 brought alloyed steels that could be hardened with thicker cross-sections, thus laying the foundations for modern hardening techniques. Härterei Gerster AG, a family business, has become the leading Swiss specialist for technical heat treatments mainly due to ongoing development cooperation with a number of academic institutions. Various development projects established a friendly relationship between Härterei Gerster AG and Prof. Hans Berns.

This vintage book contains a collection of classic articles on the subject of the hardening and tempering in blacksmithing, taking the reader through the processes in a factory setting. First published in 1909, these articles contain a wealth of timeless information regarding the subject's history. They detail industrial hardening plants, information on chemicals used for heating and hardening, and guides for industrial tool work. Articles featured in this book include: - Hardening Steel – by E. R. Markham - Forging, Hardening and Annealing High-Speed Steel – by W. J. Todd - Local Hardening and Tempering – by William A. Painter A concise volume not to be missed by the modern blacksmithing enthusiasts and is reprinted here by Read & Co. Books with a new, specially commissioned introduction on blacksmithing.

Annotation A practical selection guide to help engineers and technicians choose the mot efficient surface hardening techniques that offer consistent and repeatable results. Emphasis is placed on characteristics such as processing temperature, case/coating thickness, bond strength, and hardness level obtained. The advantages and limitations of the various thermochemical, thermal and coating/surface modification technologies are compared

Make the heart of this people dull, and their ears heavy, and blind their eyes; lest they see with their eyes, and hear with their hearts and turn and be healed. This call of the prophet Isaiah in Isaiah 6 has perplexed readers of all times. Torsten Uhlig reconsiders this text and other related passages. Applying a communicative approach and engaging with recent studies on righteousness, the author presents a new interpretation of the theme of hardening in the Book of Isaiah. He argues that hardening is to be understood in the context of the communicative aspect of righteousness and elucidates the communicative acts involved in the hardening of the people. Describing the role of these passages within the communicative strategy of larger units, this monograph offers a distinctive contribution to the interpretation of the Book of Isaiah as a whole.

*Imparts good security doctrine, methodology, and strategies *Each application-focused chapter will be able to be used as a stand-alone HOW-TO for that particular application. *Offers users a selection of resources (websites, mailing lists, and books) to further their knowledge.

The completely revised Second Edition of Metallurgy for the Non-Metallurgist provides a solid understanding of the basic principles and current practices of metallurgy. This major new edition is for anyone who uses, makes, buys or tests metal products. For both beginners and others seeking a basic refresher, the new Second Edition of the popular Metallurgy for the Non-Metallurgist gives an all-new modern view on the basic principles and practices of metallurgy. This new edition is extensively updated with broader coverage of topics, new and improved illustrations, and more explanation of basic concepts. Why are cast irons so suitable for casting? Do some nonferrous alloys respond to heat treatment like steels? Why is corrosion so pernicious? These are questions that can be answered in this updated reference with many new illustrations, examples, and descriptions of basic metallurgy.

In 1921, Anton Baumstark delivered two lectures on the development of the Roman Rite to a gathering at the Abbey of Maria Laach. Abbot Ildefons Herwegen offered to publish those lectures, but Baumstark decided to write a book on the topic instead, which was published two years later as On the Historical Development of the Liturgy. It would be another sixteen years before he produced Comparative Liturgy, for which he is better known. Together the two books lay out Baumstark's liturgical methodology. Comparative Liturgy presents his method; On the Historical Development of the Liturgy offers his model. For nearly a century, On the Historical Development of the Liturgy has been valued by specialists in the field of liturgical studies, both for its description of comparative liturgy and for the portrayal of patterns Baumstark discerns in liturgical development. Also significant are the hypotheses Baumstark proposes and the evidence he brings to bear on problems in liturgical history. In this annotated edition, Fritz West provides the first English translation of this work by Anton Baumstark.