This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 Excerpt: ...economically the temperature of a furnace, and the corrosive action of other substances with which they come into contact. Refractoriness may, therefore, be a vice or a virtue, according to circumstances, and a given material may be refractory in one process, but break down easily if employed in another. The increased ...
Read More
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 Excerpt: ...economically the temperature of a furnace, and the corrosive action of other substances with which they come into contact. Refractoriness may, therefore, be a vice or a virtue, according to circumstances, and a given material may be refractory in one process, but break down easily if employed in another. The increased demand for refractory materials during the war, particularly in the manufacture of steel and glass, has shown the need for further scientific investigation. Experiment on the large scale is costly, especially if carried out in an unscientific manner. The help of chemists is therefore essential in determining the composition and the chemical and physical properties of such substances, having in view the purposes to which they are to be applied. The work is not confined to the investigation of known refractories, but is extended to the discovery and utilisation of new refractories to cope with the conditions created by their employment in high temperature furnaces. Having selected a suitable material, from the chemical point of view, it is necessary to ascertain whether it will withstand, without shrinkage, fusion or softening--and consequent deformation--the temperature required for the desired reaction. The refractory that will last for ever has yet to be found, but that with the longest life is the most economical, provided the saving effected by the increased length of life--renewals being less frequently required--plus the saving of time and labour, in more continuous running of the furnace, is proportionate to any additional cost. The subject has long been treated more or less scientifically, the older refractories being classified into acid, basic, and neutral materials., As examples of the acid class we have fire-clays, such as ganister, ..
Read Less
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 300grams, ISBN: