Records of the Geological Survey of India, Volume 76, Issue 12Geological Survey of India, 1942 - Earthquakes |
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Page 3
... hard an abrasive on a soft surface may cause serious damage . On the other hand certain comparatively soft abrasives may be ineffective upon hard surfaces . Hardness is obviously the most important quality of abrasives . BULL , No. 12 ...
... hard an abrasive on a soft surface may cause serious damage . On the other hand certain comparatively soft abrasives may be ineffective upon hard surfaces . Hardness is obviously the most important quality of abrasives . BULL , No. 12 ...
Page 11
... hard mineral and its crystals often break with a conchoidal fracture . The commonest form of garnet , Almandite , is ... hard rubber , celluloid , silk hats , and for small discs employed in dental work . Although quartz is used ...
... hard mineral and its crystals often break with a conchoidal fracture . The commonest form of garnet , Almandite , is ... hard rubber , celluloid , silk hats , and for small discs employed in dental work . Although quartz is used ...
Page 24
... hard than silicon carbide and its hardness varies from 9.2 to 9.6 . Uses . * Fused alumina is harder than corundum and can be used in all processes where a hard abrasive is required , as , for example , for grinding steel or wrought ...
... hard than silicon carbide and its hardness varies from 9.2 to 9.6 . Uses . * Fused alumina is harder than corundum and can be used in all processes where a hard abrasive is required , as , for example , for grinding steel or wrought ...
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Common terms and phrases
A. L. Coulson Abrasive Industry abrasive purposes Abrasive wheels Almandite aluminium artificial abrasives B. C. Roy bauxite beds Bihar Burma Canada Department Carborundum cent chert coated abrasives coated cloth coke colour corundum Corundum occurs crushed crystals Department of Mines Deposits Dhalbhum Diamond Diatomite Emery employed felspar flint Fused alumina future trend garnet garnet sands Geol Geological Survey glass grains grey grinding hard Hazaribagh district high grade honing stones impurities ingredients iron J. A. Dunn J. A. Mineral Resources Kashmir Kyanite large quantities limestone LXXVIII M. S. Krishnan Madras manufacture of abrasive manufactured abrasives Marketing and future Memoir metal polish mica Mysore natural abrasives oxide paper and cloth pebbles polishing material powders Products of Canada Pumice Resources of Bihar Rewa Risin spur rock sandstones siliceous silicon carbide sillimanite Singhbhum steel balls Steel wool suitable surfaces Surv Survey of India Talc Tripolite varies Vindhyan Volcanic dust