| 单词 | tool steel |
| 例句 | The making of such “tool steel” was critical for the second stage of the industrial revolution, where American industry came into its own. Why Immigration Is Crucial To The Revival Of America's Cities 2014-06-01T04:00:00Z The spindles d are of 17⁄8 hammered tool steel accurately turned and fitted in the boxes, which are of extra length, and lined with the best genuine Babbitt metal. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Chapters on special work, grinding, tool holders, speeds, feeds, modern tool steels, etc. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The kind shown at A is usually made of tool steel and the body is finished to a standard size. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. The main use of molybdenum is in the manufacture of high-speed tool steels, in which it has been used as a partial or complete substitute for tungsten. The Economic Aspect of Geology Other products include automobiles and accessories, tool steel, candles, farm implements, clothing, chinaware, cement, chemicals and mining machinery. The Greatest Highway in the World Historical, Industrial and Descriptive Information of the Towns, Cities and Country Passed Through Between New York and Chicago Via the New York Central Lines. Based on the Encyclopaedia Britannica. When properly treated it will do twice the work of ordinary tool steel for turning chilled rolls, &c. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z These cutter blades are made of tool steel and have a bevel at each end, one at 45 degrees, the other at 60 degrees. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z To eliminate the expense of this continual dressing of tools and also to effect a great reduction in the amount of tool steel required, tool-holders having small inserted cutters are used in many shops. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. Its use in tool steel is mainly confined to Europe, where its metallurgical application is in a more advanced stage than in the United States. The Economic Aspect of Geology The axes are of tool steel carefully fitted to their bearings, and on the larger instruments friction rollers are fitted to the polar axis. Astronomical Instruments and Accessories The spindle is of tool steel 31⁄2 inches in diameter at the front bearing, tapering uniformly 3⁄4 inch per foot to the back end. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z These arms have hardened tool steel rollers on cam end with hardened tool steel adjusting screws opposite. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The cutters are made of square tool steel of commercial size, and are ground and set to take a scraping end cut. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. Nickel is used in all gun and armor-plate steels, and in practically all other good steels except tool steels. The Economic Aspect of Geology An ordinary lathe tool is prepared by drawing down the tool steel to a long cone, resembling the ordinary practice in preparing a boring tool. On Laboratory Arts Again, it does not support the tool sideways unless the tool steel is dressed up and closely fits the groove in the holder. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Large diameter oil tempered springs held in tool steel cups, locked with a key, are provided. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Such case-hardened parts are stronger, cheaper, and more serviceable than similar parts made of tool steel. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Vanadium is also used in high-speed tool steels, its use materially reducing the amount of tungsten necessary. The Economic Aspect of Geology Take a bar of tool steel and cut it a little longer than the radius of curvature required. On Laboratory Arts The tool itself should be so forged that one side is flush with the side of the tool steel as shown at a in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z A few bars of fine tool steel, a hammer, and a small anvil, are all that are required, aside from fire and water. Scientific American Supplement, No. 312, December 24, 1881 And yet carbon alone does not make all the difference because we know that cast iron has more carbon than tool steel and yet it does not make a good cutting tool. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel To the considerable demand for high speed tool steels occasioned by munitions manufacture, production in the United States responded quickly. The Economic Aspect of Geology In the sketch the tool is shown swinging about the back centre instead of about a pin — there is little to choose between the methods unless economy of tool steel is an object. On Laboratory Arts The sides of the tool from a to b must be inclined to the body of the tool steel, as shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Now the virtue of a good tool steel is the same as of a good man. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The steel workers of today know by personal experience and by inheritance all the standard rules and theories on forging, hardening and tempering of all fine tool steels. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Cobalt is also used in some of the best high-speed tool steels. The Economic Aspect of Geology Presently he emerged with a small parcel, and explained, in answer to my inquiring look: "A strip of tool steel and a block of metal for Polton." John Thorndyke's Cases related by Christopher Jervis and edited by R. Austin Freeman Lathe Number 1.—Lathe turning tool steel 3⁄8 inch in diameter and 11⁄4 long, reducing the diameter of the work 1⁄8 inch. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z They have, furthermore, been importing ore steadily from Sweden, some of the Swedish ore, such as Dannemora, being the best in the world for the manufacture of tool steel—so important in munition work. The Land of Deepening Shadow Germany-at-War Tungsten steels containing up to 6 per cent do not have the property of red hardness any more than does carbon tool steel, providing the manganese or chromium is low. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel The principal use of tungsten is in the making of high speed tool steels. The Economic Aspect of Geology Finding that the crushing faces were not sufficiently hard, I made two anvils of the best tool steel, and very carefully hardened them. Scientific American Supplement, No. 447, July 26, 1884 Lathe Number 2.—Turning tool steel 2 inches long and 1⁄2 inch diameter, reducing diameter 1⁄8 inch. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Open hearth steel is considered more uniform and reliable than Bessemer, and is used for springs, bar steel, tool steel, steel plates, etc. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon It fell into disrepute as an alloy for high-speed tool steel, however, because it was found that the molybdenum was driven out of the surface of the tool during forging and heat treating. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Other consumers in the main satisfied their requirements by imports of tool steel from these four countries. The Economic Aspect of Geology The manufacture of tool steel, is, as stated, one of the most technical of the arts, and one of the most complicated of the applications of long experience and experiment. Steam, Steel and Electricity Lathe Number 3.—Turning tool steel 4 inches long and 7⁄8 inch in diameter, reducing the diameter 1⁄8 inch. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z When the carbon percentage is high, the steel is called "high carbon" steel, and it is used in the shop as tool steel. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Tungsten is used principally for the magnets of magnetos, to some extent in the manufacture of hacksaws, and for special tool steels. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Ordinary tempered tools 1 inch by 1 1/2 inch, made of carbon tool steel, were used for this work. Shop Management This is an outline of the controversy about the differences which should be expressed by a name, between tool steel and structural steel. Steam, Steel and Electricity Lathe Number 4.—Turning tool steel 6 to 8 inches long and 13⁄16 diameter, reducing work 1⁄8 inch in diameter. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z To punch a hole through metal, use a tool steel punch with its end slightly tapering to a size a little smaller than the hole to be punched. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon It was early found that 1 part molybdenum was the equivalent of from 2 to 2½ parts of tungsten in tool steels, and magnet steels. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Thorpe had brought him a deer knife from Detroit; a beautiful instrument made of the best tool steel, in one long piece extending through the buck-horn handle. The Blazed Trail All machinists know of certain brands of tool steel which they prefer. Steam, Steel and Electricity Lathe Number 5.—Turning tool steel 8 to 10 inches long, and 2 inches in diameter, reducing diameter 1⁄8 inch. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z In order to use the chart it is necessary to harden the sample we desire to test as we would harden a piece of tool steel, and then test by scleroscope. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel It is upon the intelligence, experience, and skill of the individual that quality of tool steel depends. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Where tools have to withstand shocks and vibration, as in pneumatic hammer work, in severe punching duty, hot or cold upsetting or similar work, tool steels containing vanadium or chrome-vanadium give excellent results. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Cast steel was first made in 1770 by Huntsman, who for the first time melted the "blistered" steel, which until that time had been the tool steel of commerce, in a crucible. Steam, Steel and Electricity Lathe Number 6.—Turning tool steel 5 inches long and 31⁄2 inches diameter, reducing diameter 3⁄16. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The one main thing to remember in hardening tool steel is to quench on a rising heat. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Let the forging begin as soon as the steel is hot enough and never let tool steel soak in the fire. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel A number of circular dies of carbon tool steel for use in tool holders of turret lathes were required. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel In tool steel there is an almost infinite variety as to quality. Steam, Steel and Electricity Cyanide Bath for Tool Steels.—All high-carbon tool steels are heated in a cyanide bath. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel Many "secret mixtures" are sold, falsely claimed to be able to convert inferior metal into crucible tool steel grade. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel In hardening carbon tool steel in water, too much cannot be said in favor of slow, careful heating, nor against overheating if cracks are to be avoided. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel All users of tool steels should carefully study the different qualities of the steels they handle. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel When we say "tool steel," we nearly always refer to carbon-tool steel, high-speed steel being usually designated by that name. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel It is possible to harden the surface of tool steel extremely hard and yet leave its inner core soft and tough for strength, by a process similar to case-hardening and known as "pack-hardening." The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel |
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