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Effect of Quenching Rate on Age Hardening in an Al-Zn-Mg Alloy Sheet
By Hidenori Hatta, Takero Watanabe, Hideo Yoshida
"The effect of the quenching rate on age hardening in an Al-6.0mass%Zn-0.75mass%Mg alloy sheet was investigated. The quenching rates and aging conditions were as follows: water quenching (WQ) or furna
Jan 1, 2018
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Back on Track: The Downtown Rail Extension - RETC2021
By Meghan M. Murphy, Derek Penrice
The Downtown Rail Extension (DTX) is principal element of the planned second phase of the Transbay Joint Powers Authority’s (TJPA) Transbay Program. When complete, this regionally critical project wil
Jun 13, 2021
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The development of the Sherritt ammonia pressure leach process
By D. G. E. Kerfoot
In September 1945, when the Lynn Lake nickel orebody was discovered Sherritt Gordon Mines was a small copper mining company with rapidly depleting ore reserves at its single producing mine at Sherrido
Jan 1, 1999
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The Value Opportunity for New Zealand's Lignite Deposits
The lignites of Otago and Southland offer a potentially viable future feedstock for electricity production and possible conversion to petrochemicals or liquid fuels. The deposits, when combined, repre
Jan 1, 2005
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Factors Associated with Hand and Finger Injuries in the U.S. Mining Industry
By Jonisha P. Pollard, F. Nasarwanji, Lydia M. Kocher
This study identifies nonfatal injury incidence rates, nature of injury, work activities, glove usage, and sources of hand and finger injuries in the U.S. mining industry, as reported to the Mine Safe
Feb 24, 2022
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The Contact Process for Sulphuric Acid
By W. H. De Blois
Introduction In the contact process for ?the manufacture of sulphuric acid, sulphur dioxide gas - produced by the burning of sulphur or of sulphur-bearing ores, or as a by-product in the treatment
Jan 1, 1927
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Front-End Loaders in Mining
By J. A. Ressinger
"The purpose of this paper is to discuss some of the differences between various methods of excavating and loading as they relate to mining operations. The intent is not to provide ""pat"" answers, bu
Jan 1, 1972
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Highlights of the Session on ?Ores, Metals, and the War?
By AIME AIME
UNDER the auspices of the Institute's Committee on Industrial Preparedness, a symposium was arranged for the Annual Meeting on the subject "Ores, Metals, and the War," with many well-known Govern
Jan 1, 1942
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Mineral Possibilities of Northern Vancouver Island
By H. C. Gunning
In spite of the fact that mining has been more or less active in the northern part of Vancouver island since the late 'nineties', there seems to be a remarkable lack of information regarding
Jan 1, 1930
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Density – A contentious issue in the evaluation and determination of Resources and Reserves in coal deposits
By L. Roux
The initial evaluation of a coal deposit often raises uncertainty with regard to the accuracy of the reported Resources and Reserves. Reconciliation of results from mining and beneficiation with the o
May 1, 2021
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IC 7686 Some Useful Applications Of Zirconium ? Conclusions
By J. H. McClain
In the last 3 years' operation of the zirconium-production plant, zirconium metal has been employed to good advantage in many applications. The most frequent use has been in situations requiring
Jan 1, 1954
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RI 5784 Stress-Corrosion Cracking Susceptibility Of Zirconium In Ferric Chloride Solution - Summary
By J. T. Dunham
Zirconium has possible use in industry where severe corrosion conditions are encountered because it resists attack from a variety of corrosive environments. However, very little experimental testing h
Jan 1, 1961
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OFR-73-84 Testing Of A Fragmentation System For A Hard Rock Mining Machine
By Thomas Brunsing
The program was carried out to develop deep kerfing and core breaking techniques to be incorporated into the design of a field prototype hard rock mining machine. The field machine is designed to mine
Jan 1, 1983
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Wartime Metal Control in Canada
By George C. Bateman
I HAVE been introduced in the dual capacity of president of the Canadian Institute and Metals Controller for Canada. There are three particular points of similarity between these two positions. They a
Jan 1, 1941
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OFR-13-82 Engineering Property Changes And Environmental Effects On Coal Mines Wastes Due To Slaking
Fresh coal refuse was sampled at 21 US mines. Five of the sites were drilled, sampled and tested more extensively. Field tests included Standard Penetration tests, and in-situ density determinations.
Jan 1, 1981
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RI 3906 History of Water Flooding of Oil Sands in North TX
By Peter Grandstone, D. A. Jessup, D. B. Taliaferro
"INTRODUCTION Water flooding of oil sands in Texas as a means of secondary recovery of oil has been practiced mainly in the north-central part of the State, which includes the old shallow fields in ei
Jul 1, 1946
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A novel approach to enclosed gear lubrication on board mining equipment
By Shek N. Lau, Nicola Samman
"Enclosed gear cases on board heavy mining equipment have traditionally been lubricated with regular heavy duty gear oils. However, equipment manufacturers, have recommended the use of an ISO-1000 gea
Jan 1, 1996
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Evaluation of a soybean oil based diesel fuel in an underground gold mine
By Jr. Watts, B. K. Cantrell, K. L. Bickel, J. F. McDonald
"A field trial was conducted at an underground gold mine to evaluate diesel fuel derived from soybean oil (soy-methyl-esters or “biodiesel”) as an alternative to commercial, low-sulphur, number 2 dies
Jan 1, 1997
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Ore Haulage
By S. F., French
IN reviewing the design of the ore haulage system for the Morenci project, the reader should bear in mind that the railroad and its equpiment cannot be considered as an independent railroad provided o
Jan 1, 1942
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Improving dust management in gate road development – a computational fluid dynamics-virtual reality based training tool for mine workforce
By M Qiao, A Sugden, W Zong, J Hines, J Roberts, T Ren
Long-term exposure to respirable dust continues to present an occupational health and safety hazard to mine workers in underground mines. Workers who are exposed to mine dust can develop occupational
Apr 16, 2024