1941 Hydraulic Machinery HC Book E. Molloy

Description: Excellent condition. 96 pages. THE "COMPLETE ENGINEER" SERIES VOLUME 16 HYDRAULIC MACHINERY DEALING WITH THE DESIGN, APPLICATION, OPERATION, AND MAINTENANCE OF HYDRAULIC PRESSES AND SHEARS, INCLUDING THOSE USED IN THE MANUFACTURE OF ARMAMENTS Prepared by a Staff of Technical Experts under the direction of E. MOLLOY WITH FIFTY PHOTOGRAPHS AND DIAGRAMS 1941 CHEMICAL PUBLISHING COMPANY, Inc. Brooklyn, N. Y. ----------- 3 ----------- THE "COMPLETE ENGINEER" SERIES VOL. 16 HYDRAULIC MACHINERY ----------- 3 ----------- PREFACE HE EAVY engineering is one of the basic industries of this country. It is in connection with this industry that hydraulic machinery plays its most vital part, where it is used for forging, pressing, and shearing metals in the iron and steel works which supply the whole of the engineering industry. Hydraulic presses also play an important part in the manufacture of many of the products of our great engineering works. Guns, pro- jectiles, armour plating, locomotive parts such as axles, wheels, and tyres all depend for their production upon hydraulically operated machinery. In addition there are many other special applications in connection with automobile manufacture, the production of moulded products, etc., where hydraulic machinery provides the most effective method of pressing and forming the requisite components. The present book gives a survey of up-to-date practice in this sphere of engineering. Chapter I explains clearly the basic laws which govern the operation of all types of hydraulic machines, and shows how they are applied in practice in the design and construction of a typical machine. Chapters II to V are devoted to hydraulic presses and their applications to various duties. Chapter II, for example, deals with forging and forging presses. Chapter III describes the hydraulic machines used in the manufacture of guns, projectiles, and armour. Chapter IV deals with the special presses which have been developed for the manufacture of railway material. Chapter V gives examples of presses employed for producing articles of everyday use-moulded products such as "Bakelite," chassis frames, tubes, and other shapes, produced by the extrusion process, and so on. The final chapter deals with the use of rolling-mill shears. Useful notes for the plant engineer on layout of machines, running, and main- tenance are given in the various chapters. We are indebted to Davy and United Engineering Co., Ltd., James Walker & Co., Ltd., and Alfred Herbert, Ltd., for supplying drawings, photographs, and data relating to the modern examples of hydraulic machinery which have been used to illustrate the text. E. M. 3 ----------- 4 ----------- PREFACE CONTENTS CHAPTER I. PRINCIPLES OF HYDRAULICS AND THEIR APPLICATION What happens when Pressure is exerted on Liquid-Simple Hydraulic System Application to all Kinds of Hydraulic Machinery Hydraulic System with Accumulator Cylinder-Liquids Used for Transmission of Hydraulic Power-Design and Construction of Hydraulic Presses Pressure of Liquid Required The Rame - The Main Press Cylinder Attachment of Cylinder to its Entablature-Proportioning Press-cylinder Walls-Cast-iron Cylinders Steel Cylinders-Packings-The Entablature The Base of the Press-The Columns between Baseplate and Entablature The Main Crosshead-Attaching Ram to Crosshead-Auxiliary Cylinders-Drawback Cylinders-Notes Materials. on II. FORGING PRESSES Shaping Metal by Forging-Rolling, Hammer, Forging, and Press Forging- High-speed Forging-Intensifier-driven Presses-Electric-hydraulic Drive Air-loaded Prefiller--Operation of Steam-intensifier Press-Examples of Forging Presses-150 Tons Self-contained Overhung Forging Press-500 Tons Four-column Forging Press-2,000 Tons Four-column Forging Press-3,000 Tons Duplex Press--1,500 Tons Electric-hydraulic Press-6,000 Tons Duplex Press-12,000 Tons Duplex Press-Handling the Work-Erection of Forging Presses Maintenance. III. HYDRAULIC PRESSES USED IN THE MANUFACTURE OF GUNS, PROJECTILES, AND ARMOUR Construction of a Modern Gun-Forging a Gun Tube-Straightening the. Tube by means of a Press-Manufacture of Shell Blanks-Shell-blank Piercing Operation-Shell-blank Drawing Operation-Presses for Piercing and Drawing Shell Blanks-Layout of Shell-press Plant-200 Tons Piercing and 150 Tons Drawing Presses-300 Tons Piercing and Drawing Press-300 Tons Double- punch Double-pot Piercing Press Plant-The Nosing Process after Forging Shell Blanks Banding the Shell-Manufacture of Armour PlateArmour- plate Forging, Rolling, and Bending-15,000 Tons Bending Press-Manipulator Gear-Operating and Maintenance Notes-Obtaining Good Results in the Piercing and Drawing Operations-Power Reduction-Notes for the Plant Engineer--Periodical Inspection of the Plant. IV. SPECIAL FORGING PRESSES USED IN THE MANUFACTURE OF RAILWAY MATERIAL Axle Forging The Axle-forging Press-Production of Railway-wagon Wheels -3,500 Tons Wheel Press-Roughing the Wheel-Finishing the Wheel -Forming Railway-wheel Tyres-Press for Rectifying Tyres Found Out of Round. V. HYDRAULIC PRESSES FOR MISCELLANEOUS DUTIES Power Required for Hydraulic Presses-Presses for Producing Shaped Components--Chassis-frame Forming Press-Flanging Press-Cable-covering Press Presses for Plastic Materials-Shaft-upsetting Press-The Extrusion Press-Materials for Extrusion Punches, Dies, and Container Linings-750 Tons Vertical Compound Extruding Press-Resinous Compound Moulding Presses-Powder-compacting Presses. VI. HYDRAULIC SHEARING MACHINES Rolling-mill Shears--Simple Down-cut Bloom Shear-" Down-and-up Cut-bloom Shear-Driving Gear-Plate Shear-Action of Hydraulic Shear and Presses Compared-Determination of Blade Load-Direct Hydraulic Shears- Pump Capacity.

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End Time: 2025-01-20T18:23:46.000Z

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