ISSN:
1573-9139
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions As a result of investigations of quartz rock it was found that in terms of the degree of conversion, density, and afterexpansion it is practically no different from quartzite. However, because of the coarse-grained structure the specimens of quartz are significantly embrittled in firing. The use of a batch of a finer grain-size composition and lime-iron bond reduces the expansion in firing. With a batch addition of 30% quartz the properties of the goods made at the experimental factory of the Ukrainian Scientific-Research Institute of Refractories were no different from those of goods made from ordinary Pervouralsk quartzite. During the production at the Pervouralsk factory of a test batch containing 15% vein quartz, it was found that scrap due to cracking of the products was not increased. The properties of the article meet the requirements of GOST 8023-56, and for a range of properties TU 14-8-103-74.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01386566
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