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Full-Text Articles in Other Engineering

Investigation Of Inclusions In Armco Ingot Iron, Edwin J. Duncan Jun 1954

Investigation Of Inclusions In Armco Ingot Iron, Edwin J. Duncan

Bachelors Theses and Reports, 1928 - 1970

Various chemical and electrolytic separation methods were investigated in an attempt to separate the in­clusions in Armco ingot iron. Residues obtained were X-rayed for identification purposes. The microstruc­tures of this iron were studied with the object of de­termining the relative sizes, locations, and possible compositions of the inclusions.


Effect Of Recovery On The Recrystallized Grain-Size Of High Purity Aluminum, Rodney L. Helterline Jun 1954

Effect Of Recovery On The Recrystallized Grain-Size Of High Purity Aluminum, Rodney L. Helterline

Bachelors Theses and Reports, 1928 - 1970

When a cold-worked metal is annealed, it’s physical properties hange as a result of a new grain structure. The annealing treatment is divided into three stages according to the changes that occur in the distorted metal: (1) recovery, (2) recrystallization, and (3) grain growth.


The Design And Construction Of An Electrolytic Cell For Aluminum Reduction, Thomas H. Melrose Jun 1954

The Design And Construction Of An Electrolytic Cell For Aluminum Reduction, Thomas H. Melrose

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation was to design and construct a laboratory size electrolytic cell in which to reduce alumina, using the same basic materials that are used in a commercial size cell. The cell was designed to have a capacity of approxi­mately 100 grams of metallic aluminum produced every 8 hours. The cell was constructed so it could be operated continuously.


Polarography Of Indium, John Jackson Jun 1954

Polarography Of Indium, John Jackson

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to study the various aspects of the polarography of indium. The eventual goal would be to develop a method of analyzing indium in unknowns. The investigation is approached by studying the indium ions in various electrolytes and in various concentrations.


The Application Of Electric Energy To The Metallurgy Plants In Montana, Edwin J. Duncan Sep 1953

The Application Of Electric Energy To The Metallurgy Plants In Montana, Edwin J. Duncan

Bachelors Theses and Reports, 1928 - 1970

Since the year 1800, metallurgy has been affiliated with electricity. In fact, the two industries have grown side by side, being naturally dependent upon each other and having a parallel growth.


The Construction And Operation Of A Universal Specimen Mount With Protective Lead Shield For The Purpose Of Determining Pole Figures Using The Schulz-Decker Transmission Technique, Richard L. Fausner Jun 1953

The Construction And Operation Of A Universal Specimen Mount With Protective Lead Shield For The Purpose Of Determining Pole Figures Using The Schulz-Decker Transmission Technique, Richard L. Fausner

Bachelors Theses and Reports, 1928 - 1970

It was the purpose of this study to construct a universal mount, to construct a protective lead shield, to operate the instrument, and to provide a pole figure using the transmission method of Schulz and Decker. There are at present several lengthy x-ray methods of determining the grain orientation of metals. These methods are mainly photographic. In order to provide a rapid means of obtaining the necessary information concerning the grain orientation of a metal, a universal mount was constructed.


The Lucky Hit Mine Of Jefferson County, Montana, Bruce B. Goddard Jun 1953

The Lucky Hit Mine Of Jefferson County, Montana, Bruce B. Goddard

Bachelors Theses and Reports, 1928 - 1970

Many mines in the Cardwell Mining District have been more or less steady producers of gold, silver, lead and zinc since 18SO. The area first came into prominence with the discovery of gold at the Mayflower Mine in 1896. Soon after the Mayflower discovery, many claims were located in the nearby Saint Paul Gulch area, northeast of Whitehall. The Lucky Hit Mine is located in Saint Paul Gulch area of the Cardwell Mining District.


Host Rocks And Gangue Minerals Associated With Copper Deposits In Plutonic Igneous Rocks, Richard D. Montgomery May 1953

Host Rocks And Gangue Minerals Associated With Copper Deposits In Plutonic Igneous Rocks, Richard D. Montgomery

Bachelors Theses and Reports, 1928 - 1970

All of the information on the various districts has come directly from published reports. The investigation was suggested by Mr. Forbes Robertson. The geographical extent of the deposits was confined to the western United States. Many of these deposits are of the disseminated porphyry type. A few of the de­posits, such as at Butte, Montana, were of the fissure vein type.


Studies Of Tempering Behavior Of Steel X-9165 Of N-A-X 9100 Series, James A. Ndulue May 1953

Studies Of Tempering Behavior Of Steel X-9165 Of N-A-X 9100 Series, James A. Ndulue

Bachelors Theses and Reports, 1928 - 1970

One of the reasons why steel is the most versatile of all the metals available for engineering applications is because of the wide range of properties that can be obtained from it by proper heat treatment.


Geology Of The Marget Ann Mine Butte District, Montana, Winston Martin Sahinen May 1953

Geology Of The Marget Ann Mine Butte District, Montana, Winston Martin Sahinen

Bachelors Theses and Reports, 1928 - 1970

As the field work progressed it became apparent that very little was known of the mineralogical associations of the precious metal constituents of the Marget Ann ore. A mineralogical study in excess of that originally planned was then decided upon to de­termine the affiliations exhibited by the silver and gold. With these objectives in mind, the laboratory and field work continued.


The Effect Of Germanium On The Current Efficiency In The Electrolysis Of Pure Zinc Sulfate Solution, Keith R. Bock May 1953

The Effect Of Germanium On The Current Efficiency In The Electrolysis Of Pure Zinc Sulfate Solution, Keith R. Bock

Bachelors Theses and Reports, 1928 - 1970

It has long been recognized that electrolytic zinc cells are extremely sensitive to impurities. In fact, cer­tain impurities present in amounts as low as 0.1 mg/1 cause a serious loss of current efficiency. Also, the presence of several impurities in the electrolyte may accelerate the detrimental effect of each impurity.


The Decomposition Of Calcium Tungstate And Synthetic Scheelite With Hydrochloric Acid, Robert R. Beebe May 1953

The Decomposition Of Calcium Tungstate And Synthetic Scheelite With Hydrochloric Acid, Robert R. Beebe

Bachelors Theses and Reports, 1928 - 1970

The decomposition of scheelite with hydrochloric acid was studied under conditions of variable acid concentration, time and temperature. The reactions were traced by weigh­ing material untransformed and, in some cases, by analyzing the transformation products.


Metal Dust Production, James H. Foreman May 1953

Metal Dust Production, James H. Foreman

Bachelors Theses and Reports, 1928 - 1970

The object of this thesis is to study the production of metal dust by direct application of a mechanical force to a stream of molten metal.


The Precipitation Of Calcium Tungstate From Sodium Tungstate Solution, Martin E. Messner May 1953

The Precipitation Of Calcium Tungstate From Sodium Tungstate Solution, Martin E. Messner

Bachelors Theses and Reports, 1928 - 1970

In view of the great need for tungsten in the present industrial world it is necessary that all known tungsten sourves be utilized to the greatest possible extent. Scheelite ores promise to be an increasingly important source of tungsten, inasmuch as the discovery of vast new deposits has been made and known deposits of high grade ores have practically been depleted.


A Study Of The Effects Of The Chloride Ion On The Lead-Silver Anodes And On The Lead Tenor Of The Zinc Deposit In Zinc Electrolysis, William A. Mitchell May 1953

A Study Of The Effects Of The Chloride Ion On The Lead-Silver Anodes And On The Lead Tenor Of The Zinc Deposit In Zinc Electrolysis, William A. Mitchell

Bachelors Theses and Reports, 1928 - 1970

The electrolyte used in the commercial production of electrolytic zinc from zinc sulphate solutions contains small amounts of impurities each of which has its own effects upon the process. Impurities such as antimony, cobalt, nickel, and iron tend to lower the current efficiency while other impurities such as chlorine, fluorine, and nitrates tend to increase the corrosion of the lead anodes and thereby increase the lead tenor of the zinc deposit.


The Effect Of Manganese On The Age Hardening Of Aluminum-Copper Alloys, Keith P. Burgess May 1953

The Effect Of Manganese On The Age Hardening Of Aluminum-Copper Alloys, Keith P. Burgess

Bachelors Theses and Reports, 1928 - 1970

It is known that age-hardening occurs in alloys of the solid solution type containing a hardening constituent, of a metal or metallic compound which is more soluble in the solvent phase at higher tempertures than at lower temperatures.


The Mechanical Production Of Zinc Dust, Charles A. Schroer May 1952

The Mechanical Production Of Zinc Dust, Charles A. Schroer

Bachelors Theses and Reports, 1928 - 1970

The object of this thesis is to produce zinc dust suitable for zinc leach purification, by direct application of a mechanical force on a stream of molten zinc.The project is a continuation of work done by Mr. D. S. Gleason, while working for his Master of Science degree in the spring of 1952.


Flotation Of Huebnerite, Henry Albright May 1952

Flotation Of Huebnerite, Henry Albright

Bachelors Theses and Reports, 1928 - 1970

The development of suitable beneficiation processes for treating domestic low-grade tungsten ores is a problem now facing the mineral industry. While we are now consuming more tungsten than normally because of the defense program, we are no longer able to import ores from the world's principal source, China. The problem then, is to increase our domestic production so as to ac­quire a greater degree of self-sufficiency.


The Construction Of An X-Ray Camera, Emil Bazarnicki May 1952

The Construction Of An X-Ray Camera, Emil Bazarnicki

Bachelors Theses and Reports, 1928 - 1970

The major portion of the construction of the X-ray camera was performed in the machine shop of Montana School of Mines. However, some machine work had to be accomplished in the Butte High Machine Shop, as well as in the machine shop of the Anaconda Copper Mining Company.


The Birdie Mine Tungsten Deposit Butte Mining District, Silverbow County, Montana, Bernard A. Fahm May 1952

The Birdie Mine Tungsten Deposit Butte Mining District, Silverbow County, Montana, Bernard A. Fahm

Bachelors Theses and Reports, 1928 - 1970

The importance of tungsten has encouraged the search for minerals of this metal, and consequently new deposits have been discovered, and known deposits have been re-examined. Western Montana has rather widespread deposits if low-grade types are also considered. Many deposits were known long ago, but abandoned because the use of tungsten was still in its beginning stage and therefore little attention was given to this type of mineral.


The Occurrence Of Molybdenite In The United States, Alaska, Canada, And Newfoundland, Richard W. Brummett May 1952

The Occurrence Of Molybdenite In The United States, Alaska, Canada, And Newfoundland, Richard W. Brummett

Bachelors Theses and Reports, 1928 - 1970

In this study of molybdenite and its occurrence, the pub­lished literature on 66 separate deposits was reviewed, sum­marized, and coordinated. The following descriptions are in­tended to point out the important features of molybdenite oc­currences as described in the literature.


The Immersion Coating Of Indium Upon Magnesium From Sulphate Solutions Containing Flourides, John J. Harrington May 1952

The Immersion Coating Of Indium Upon Magnesium From Sulphate Solutions Containing Flourides, John J. Harrington

Bachelors Theses and Reports, 1928 - 1970

The thesis problem that will be discussed in this report is an investiga­tion of a method of plating a coating of indium upon magnesium and magnesium alloys. The method used to accomplish the final results is the immersion pro­cess. It can be defined as the process of coating a metal with a second metal by immersing the first in a solution containing ions of the second.


Variation Of Induction And Hysteresis Curves For The Heusler Alloy, Cu2mna1, Ford W. Knight May 1952

Variation Of Induction And Hysteresis Curves For The Heusler Alloy, Cu2mna1, Ford W. Knight

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to determine the fundamental magnetic characteristics of induction and hysteresis, for the alloy Cu2MnAl. This is a ternary, ferromagnetic Heusler alloy. The problem is not only to determine these characteristics for the alloy as-cast but to heat treat it and observe the manner in which different heat treat­ments affect these two fundamental magnetic characteristics.


Electrowinning Of Zinc By Mercury Cathode, Tor O. Notevarp May 1952

Electrowinning Of Zinc By Mercury Cathode, Tor O. Notevarp

Bachelors Theses and Reports, 1928 - 1970

The problem was the investigation of electrowinning of zinc by using a mercury cathode, employing a neutral solution of zinc sulphate and containing small amounts of zinc, in the order of ten grams zinc per liter and less. The purpose of this study was on the base of the laboratory experiments to investigate the operational data that might possibly be applied in practice or industry.


The Effect Of Ferric Iron Upon The Current Efficiency And The Deposition Of Copper In The Electrowinning Of Copper From Copper Sulphate Solutions, James L. Owings May 1952

The Effect Of Ferric Iron Upon The Current Efficiency And The Deposition Of Copper In The Electrowinning Of Copper From Copper Sulphate Solutions, James L. Owings

Bachelors Theses and Reports, 1928 - 1970

In the hydrometallurgy of copper, probably the most widely used method for the precipitation of copper is by electrolysis using insoluble anodes. The process is similar in many respects to the electrolytic refining of copper; one of the main differences is the use of insoluble anodes in electrowinning as compared to the use of impure copper anodes in electrorefining. Impurities, however, are common to both processes. The nature of these impurities differ and the problem of purifying the electrolyte is also different.


The Mechanical Production Of Zinc Dust, Robert F. Payne May 1952

The Mechanical Production Of Zinc Dust, Robert F. Payne

Bachelors Theses and Reports, 1928 - 1970

It was the purpose of this investigation to delve further into the possibility of producing, by mechanical means, a zinc dust which might be suitable for the puri­fication of zinc leach solution.


The Metallography Of Aluminum Casting Alloys, Donald D. Goehler May 1952

The Metallography Of Aluminum Casting Alloys, Donald D. Goehler

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to supply the Montana School of Mines with an up to date source of information concerning the metallography of aluminum casting alloys. This thesis is designed as a continuing project. Ultimately, it is hoped that a catalog containing all the typical structures of aluminum casting alloys will develop.


Electroplating Of Chromium, Nickel And Copper Upon Titanium, Stanley O. Fong May 1952

Electroplating Of Chromium, Nickel And Copper Upon Titanium, Stanley O. Fong

Bachelors Theses and Reports, 1928 - 1970

Recently, there has been a great amount of research work done on the metal titanium. Since it is a light weight metal, with unusual strength and good resistance to corrosion, it may be a possible substitute for aluminum and magnesium alloys, or steel.


An Investigation Of The Hardening Properties Of Some Alpha Copper Indium Alloys, Charles W. Mcpherson May 1952

An Investigation Of The Hardening Properties Of Some Alpha Copper Indium Alloys, Charles W. Mcpherson

Bachelors Theses and Reports, 1928 - 1970

Precipitation hardening alloys has assumed a major role in modern day development of alloys. In his search for stronger, harder materials, the metallurgist has often been limited by the cost of metals which posses the needed properties.


An Early Tertiary Stream Channel Between Fish And Pipestone Creeks, Ten Miles West Of Whitehall, Montana, Henry D. Olson Mar 1952

An Early Tertiary Stream Channel Between Fish And Pipestone Creeks, Ten Miles West Of Whitehall, Montana, Henry D. Olson

Bachelors Theses and Reports, 1928 - 1970

Driving between Butte, and Whitehall, Montana, on highway U.S. 10S, one observes an interesting phenomenon in the lower end of Little Pipestone Creek canyon. One side and the bottom of the canyon is cut inthe hard igneous rocks of the Boulder Batholith, and the other side of the canyon is made of unconsoli­dated sand, gravel, and cobbles.