ISBN: 9781144473677

Purchase of this book includes free trial access to www. million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: pol… Mehr…

Purchase of this book includes free trial access to www. million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: polished with rouge, spread on a piece of parchment, stretched over a slab of oak. A little water is used with the rouge, and the sample of metal is rubbed backwards and forwards about 500 times. Commercial rouges are not all of a suitable quality. Those marked "for steel" are too hard and coarse for untempered steels; those marked "for gold " are better, but it is advisable to wash them before use. These products change with time, perhaps on account of a molecular change, which in an oxide of iron is not improbable. In short, it is best to prepare one's own rouge, carefully avoiding the presence of any hard impurity, by carefully calcining sulphate of iron and separating the finest parts by washing. It may be also made from oxalate of iron. Instead of parchment the rouge may be applied to cloth having a fine nap and stretched double over the polishing block. § 7. Polishing in Bas-Belief-When a complex substance is polished, its different constituents tend to wear away unequally, according to their specific properties and absolute dimensions, and it is possiblfe by placing it in convenient positions to show the structure by the unequal relief of its components. To obtain this result it is necessary to polish the section on a bed elastic enough to wear away the little protuberances as they are formed, and delicate enough to bring out the finest details. Osmond found parchment the best for this purpose, stretched on a piece of perfectly smooth wood. A small quantity of rouge, damped with water, is then rubbed in with the finger, and the excess washed off by water, so as to keep only the very finest particles, which have penetrated into the pores of the parchment. On this prepared surface the metal to be polished is rubbed, adding a little water from time to time. Books History~~General Metallography~~Arthur-Horseman-Hiorns Nabu Press This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.<

ISBN: 9781144473677

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may ha… Mehr…

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. Arthur Horseman Hiorns, Books, Reference and Language, Metallography: An Introduction To The Study Of The Structure Of Metals, Chiefly By The Aid Of The Microscope Books>Reference and Language This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.<

2010, ISBN: 1144473675, Lieferbar binnen 4-6 Wochen Versandkosten:Versandkostenfrei innerhalb der BRD

Internationaler Buchtitel. In englischer Sprache. Verlag: Nabu Press, 246 Seiten, L=189mm, B=246mm, H=13mm, Gew.=445gr, [GR: 25500 - TB/Geschichte], [SW: - Legal Reference / Law Professi… Mehr…

Internationaler Buchtitel. In englischer Sprache. Verlag: Nabu Press, 246 Seiten, L=189mm, B=246mm, H=13mm, Gew.=445gr, [GR: 25500 - TB/Geschichte], [SW: - Legal Reference / Law Profession], Kartoniert/Broschiert This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.<