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Articles 1 - 14 of 14
Full-Text Articles in Engineering
Evaluation Of Commercial Titanium Alloys, Robert Loucks
Evaluation Of Commercial Titanium Alloys, Robert Loucks
Bachelors Theses and Reports, 1928 - 1970
Uses of titanium and its alloys range from aircraft structures to corrosion-resistance applications. The properties of the metal, including physical metallurgy, naturally dictate the folds of application. The interstitial elements, plus aluminum and tin, preferentially stabilize the alpha phase of titanium.
An Investigation Of Ground Pressure By Scale Model, Theodore F. Berthelote
An Investigation Of Ground Pressure By Scale Model, Theodore F. Berthelote
Bachelors Theses and Reports, 1928 - 1970
This report includes a brief survey of the literature pertaining to the application of scale models to the study of ground pressure, a discussion of the theory of scale models, description of model material and loading devices used in this study, and a discussion of results obtained in actual experimentation.
The Design And Construction Of A Laboratory Model Fluidized Bed Reactor, Godfrey Paul Howard
The Design And Construction Of A Laboratory Model Fluidized Bed Reactor, Godfrey Paul Howard
Bachelors Theses and Reports, 1928 - 1970
Fluidization has become a new and important unit operation in roasting, calcining, and drying ores because of the economy and ease of handling that it affords. Because of these reasons, and since the Montana School of Mines Metallurgical Laboratory does not have an operating model of a fluidized bed reactor, it was decided to design and construct an operating model for future research in the laboratory.
The Effect Of Strontium Sulfate Addition On The Lead Content Of Electrolytic Zinc, Arthur E. Morris
The Effect Of Strontium Sulfate Addition On The Lead Content Of Electrolytic Zinc, Arthur E. Morris
Bachelors Theses and Reports, 1928 - 1970
The production of electrolytic zinc involves the passage of an electric current through an aqueous solution of zinc sulfate and sulfuric acid. While all plants use procedures fundamentally the same, there are principal differences in the acidity of electrolyte, the zinc content of the electrolyte and the current density used.
Streaming Potential Studies, Andrew L. Mular
Streaming Potential Studies, Andrew L. Mular
Bachelors Theses and Reports, 1928 - 1970
The application of streaming potential to mineral-dressing is comparatively recent. Although colloidal chemists, for some time, have been familiar with streaming potential and the electrical double layer, A.M. Gaudin, Richards Professor of mineral-dressing, M.I.T, and D.W. Fuerstenau, his assistant, were the first to publish a series of experiments dealing directly with streaming potential applied to flotation. The apparatus described in this thesis was used by Fuerstenau and was developed by him especially for this type of investigation.
Shaft Mucker Design, P. J.G Du Toit
Shaft Mucker Design, P. J.G Du Toit
Bachelors Theses and Reports, 1928 - 1970
The mucking principle employed in the design of this mucking machine is that of a continuous operation instead of an intermittent one. The mucker was primarily designed for operation in shafts (vertical or inclined) and winzes but the mucker is not restricted to these.
Modern Hydraulic Filling In Underground Metal Mines, Rainer Gevers
Modern Hydraulic Filling In Underground Metal Mines, Rainer Gevers
Bachelors Theses and Reports, 1928 - 1970
While the practice of back-filling is almost as old as mining, it was only when modern machines made possible the removal of vast tonnages of rock, that the support of underground workings-- by filling work-out stopes-- became peremptory from both the humane and economic aspects.
Shaft-Sinking Investigation, Johan De Beer
Shaft-Sinking Investigation, Johan De Beer
Bachelors Theses and Reports, 1928 - 1970
During the past few years there has been a tremendous advance in the rate of sinking shafts. The sinking of shafts has always been one of the more costly and time consuming operations in the development of a mine. Shaft sinking is a long-term operation and only in the past few years has there been a remarkable increase in the rate of sinking.
Prospect Drilling, George Allen Mealey
Prospect Drilling, George Allen Mealey
Bachelors Theses and Reports, 1928 - 1970
This report covers four types of prospect drilling: churn drilling, diamond drilling, percussion drilling and calyx drilling. No other types of prospect drilling are discussed except these four types because any other method are not extensively used.
Underground Concreting, J. D. Riggleman
Underground Concreting, J. D. Riggleman
Bachelors Theses and Reports, 1928 - 1970
Concreting has in the past few years become a prime consideration in underground support; therefore, this report will endeavor to outline some of the basic fundamentals of underground concreting. Greater emphasis has been placed upon the characteristics and criteria of good concrete and placing procedures and techniques. Actual examples of practice have been cited but only to illustrate the basic fundamentals which are outlined in the major part of this report.
Synthetic Manganese Dioxide Production, Russell Marion Dugdale
Synthetic Manganese Dioxide Production, Russell Marion Dugdale
Bachelors Theses and Reports, 1928 - 1970
Before World War I the United States procured all of its battery grade manganese dioxide from the Caucasus. Even at this time some experimentation was under way to produce this depolarizing substance synthetically and the experiments were successful to a large extent so that when the ore from the Caucasus was cut off, the necessary material was produced synthetically. The shortage was relieved when a deposit of manganese dioxide was discovered in Montana, which was superior to the ore from the Caucasus.
Production Of Iron, Chromium And Nickel By Amalgam Metallurgy, Richard Earl Westerman
Production Of Iron, Chromium And Nickel By Amalgam Metallurgy, Richard Earl Westerman
Bachelors Theses and Reports, 1928 - 1970
Certain properties of mercury, such as its affinity for other metals, its high hydrogen overpotential, and its unique liquid state, have made its use desirable for many applications in the fields of physical and process metallurgy. Though considerable research has been done on mercury amalgams, only comparatively recently has it been shown that mercury amalgams follow certain definite laws with regard to phase exchange phenomena and electrochemical properties. It is now possible to predict, with considerable accuracy, the results of amalgam reactions.
The Zone-Refining Of A Lead-Bismuth Alloy, Edward James Westerman
The Zone-Refining Of A Lead-Bismuth Alloy, Edward James Westerman
Bachelors Theses and Reports, 1928 - 1970
Zone-refining, the purification of a metallic ingot resulting from the passing over its length of a comparatively short molten zone, has been found useful in the purification of several metallic elements. The impurities present in an elemental metal are often more soluble in the molten zone than in the solid material, and are carried to one end of the bar in the molten zone. This molten-zone movement can be repeated any number of times on a metallic ingot, with the zone always being moved in the same direction.
Mine Cars Of The United States, Edward Sadar
Mine Cars Of The United States, Edward Sadar
Bachelors Theses and Reports, 1928 - 1970
Underground transportation of mineral, waste and supplies is a vital function in mine operation. For this reason the selection and design of a mine car is important. Each type of mine car is constructed for a certain type of job. The design of a mine car is the result or product of the many people connected with its construction. It is the purpose of this report to bring forth many of these ideas by way of discussions, statistical classifications and drawings of the mine car.