T E E L Æ O N Te N Tô . . . August 23, 1937
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The Parallel Oxidation of Carbon and Chromium
THE PARALLEL OXIDATION OF CARBON AND CHROMIUM IN LIQUID IRON (16oo0 c) by LYALL FRANKLIN BARNHARDT B. Sc. Queen's University (1947) Submitted in partial fullfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY at the Massachusetts Institute of Technology 1965 Signature of Author Department of Metallurgy Signature of Professor in Charge of Research jE Signature of Chairman of - A ii Departmental Committee on Graduate Students VI 38 ABSTRACT THE PARALLEL OXIDATION OF CARBON AND CHROMIUM IN LIQUID IRON (16000c) by LYALL FRANKLIN BARNHARDT Submitted to the Department of Metallurgy in April, 1965, in partial fulfillment of the requirements for the Degree of Doctor of Philosophy. The path followed by carbon and chromium concentrations in liquid iron during oxidation was investigated experimentally by blowing gaseous oxygen on to slag-free iron - chromium - carbon melts at 16004C in an induction furnace. The carbon oxidation reaction occurred at the surface of the melt, with an initial constant rate of decarburization which was dependent on the rate of oxygen input. The mechanism of this reaction is expressed in the chemical equation: C + 1/2 02 (g) = CO (g). During the initial stage, which was characterized by a constant rate of decarburization, carbon oxidized preferentially with no loss of chromium. Beyond this stage, the rate of carbon loss declined rapidly and the oxidation of iron and chromium occurred. The entry of argon into the furnace atmosphere, during the oxygen blow, lowered the partial pressure of carbon monoxide at the metal surface. This allowed the carbon concentration of the melt to drop far below the equilibrium iii carbon content for one atmosphere pressure of carbon monoxide. -
Böhler Edelstahl - General Information
Content . Böhler Edelstahl - General Information . Production Possibilities & New Additive Manufacturing . Product Portfolio Böhler Edelstahl - General Information MISSION We develop, produce and supply high-speed steels, tool steels and special materials for our worldwide customers to offer them optimal solutions. BÖHLER Edelstahl at a glance Worldwide 2016 Production 79 €622 137,000 points of sale million revenue tonnes Advanced 2114 production facilities employees Quality & technology Global 250 LEADER steel grades 100% recyclable Sales revenue by region (FY 2016) 1% 9% 12% Europe America Asia Rest of world 78% Sales revenue by business area (FY 2016) 11% Special materials 41% 21% Tool steel High speed steels Other 27% Business area revenue special materials Automotive Other Engineering 4% 11% 11% Special Oil & Gas, materials CPI High speed Power-Gen steel 21% 41% 43% 15% 27% Tool steel 27% Aerospace Production Possibilities BÖHLER EDELSTAHL Integrated plant configuration Whole melting and re-melting operations at one site Whole hot forming operations at one site Whole heat treatment operations at one site Whole ND-Testing and finishing operations at one site Standard mechanical, metallographic, chemical tests at one site Quality starts here Primary metallurgy EAF/50 t Electric arc furnace VIM Vacuum induction furnace AOD Argon oxygen decarburization VID/14 t Vacuum induction furnace REMELTING Remelting process for high- purity metallurgical materials • ESR • PESR • VAR FORGING TECHNOLOGY 5,200 t forging press Open die forge Bar steel -
Method for Boriding of Coatings Using High Speed
(19) & (11) EP 2 222 898 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.: of the grant of the patent: C25D 9/08 (2006.01) C23C 28/00 (2006.01) 08.06.2011 Bulletin 2011/23 C25D 3/66 (2006.01) C25D 9/04 (2006.01) (21) Application number: 08848442.3 (86) International application number: PCT/EP2008/065065 (22) Date of filing: 06.11.2008 (87) International publication number: WO 2009/060033 (14.05.2009 Gazette 2009/20) (54) METHOD FOR BORIDING OF COATINGS USING HIGH SPEED ELECTROLYTIC PROCESS VERFAHREN ZUM BORIEREN VON BESCHICHTUNGEN MIT HILFE EINES SCHNELLEN ELEKTROLYTISCHEN VERFAHRENS PROCÉDÉ DE BORURATION DE REVÊTEMENTS À L’AIDE D’UN TRAITEMENT ÉLECTROLYTIQUE HAUTE VITESSE (84) Designated Contracting States: (72) Inventors: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR • Ürgen, Mustafa K. HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT Istanbul (TR) RO SE SI SK TR • Timur, Servet I. Istanbul (TR) (30) Priority: 09.11.2007 EP 07120419 • Kazmanli, Kürsat M. Istanbul (TR) (43) Date of publication of application: • Kartal, Güldem 01.09.2010 Bulletin 2010/35 Istanbul (TR) (73) Proprietors: (74) Representative: Sevinç, Erkan • Ürgen, Mustafa K. Istanbul Patent & Trademark Consultancy Ltd. Istanbul (TR) Plaza-33, Büyükdere cad. No: 33/16 • Timur, Servet I. Sisli Istanbul (TR) 34381 Istanbul (TR) • Kazmanli, Kürsat M. Istanbul (TR) (56) References cited: • Kartal, Güldem DE-A1- 1 796 215 GB-A- 1 422 859 Istanbul (TR) JP-A- 5 161 090 US-A- 3 824 134 Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. -
AP-42 12.13 Final Background Document for Steel Foundries
BACKGROUND REPORT AP-42 SECTION 12.13 STEEL FOUNDRIES Prepared for U.S. Environmental Protection Agency OAQPS/TSD/EIB Research Triangle Park, NC 27711 1-103 Pacific Environmental Services, Inc. P.O. Box 12077 Research Triangle Park, NC 27709 919/941-0333 1-103 AP-42 Background Report TECHNICAL SUPPORT DIVISION U.S. ENVIRONMENTAL PROTECTION AGENCY Office of Air Quality Planning and Standards Research Triangle Park, NC 27711 ii This report has been reviewed by the Technical Support Division of the Office of Air Quality Planning and Standards, EPA. Mention of trade names or commercial products is not intended to constitute endorsement or recommendation for use. Copies of this report are available through the Library Services Office (MD-35), U.S. Environmental Protection Agency, Research Triangle Park, NC 27711. iii TABLE OF CONTENTS 1.0 INTRODUCTION ................................................. 1 2.0 INDUSTRY DESCRIPTION ......................................... 2 2.1 GENERAL ................................................... 2 2.2 PROCESS DESCRIPTION1 ..................................... 2 2.3 EMISSIONS AND CONTROLS1,19 ................................ 8 2.4 REVIEW OF REFERENCES ..................................... 9 2.5 REFERENCES FOR CHAPTER 2 ............................... 11 3.0 GENERAL EMISSION DATA REVIEW AND ANALYSIS PROCEDURES ... 13 3.1 LITERATURE SEARCH AND SCREENING ....................... 13 3.2 EMISSION DATA QUALITY RATING SYSTEM ................... 14 3.3 EMISSION FACTOR QUALITY RATING SYSTEM ................. 16 3.4 -
Induction Heating Applications the Processes, the Equipment, the Benefits CONTENTS
Induction heating applications The processes, the equipment, the benefits CONTENTS Introduction ..........................................................................3 Forging .................................................................................14 Induction coils ................................................................ 4-5 Melting .................................................................................15 Hardening ..............................................................................6 Straightening .....................................................................16 Tempering ..............................................................................7 Specialist applications ..................................................17 Brazing ....................................................................................8 How induction works .................................................................... 19 Bonding ..................................................................................9 Selecting the best solution ......................................... 20-21 Welding ................................................................................10 International certifications .................................................... 22 Annealing / normalizing ................................................................11 Some of our customers..................................................................23 Pre-heating ........................................................................12 -
The AIST Foundation: Raising Awareness for the Steel Industry of Tomorrow
Foundation President’s Message The AIST Foundation: Raising Awareness for the Steel Industry of Tomorrow Dear members, The success of the AIST Foundation is due largely to financial support from the steel industry in addition to the dedicated efforts of the Board of Trustees . We thank Fred Harnack, retired from United States Steel Corporation, for his two years of leadership as president of the Foundation . As I begin my two-year tenure as president, I look forward to continuing the good work of the AIST Foundation . Since 2005, the AIST Foundation has awarded more than US$5 3. million in scholarships and grants to over 500 university students and teaching profes- sionals at more than 50 different universities . During this time, more than 55 steel plants have provided internship opportunities as part of the scholarship program . In addition to various scholarships administered by our 22 Member Chapters, the Foundation offers three levels of scholarships, all of which are for one year: • US$3,000 for steel scholarships . • US$6,000 for steel scholarships, which include a paid summer internship . • US$12,000 to our top-scoring applicant . Almost 60% of all AIST Foundation interns have secured employment in our industry, so the success rate is quite high for these particular scholarships . The Foundation also offers several grants aimed at increasing the number of students choosing steel as a career path, including our Kent D . Peaslee Junior Faculty Award (US$35,000 per year for 3 years) . While this is still a new program, industry awareness has greatly increased because of the recipients’ efforts to organize plant tours and university “steel days ”. -
Induction Furnace
INDUCTION FURNACE An Induction Furnace uses induction to heat a metal to its melting point which is based on the theory of Electro Magnetic Induction. Depending on their frequency (50 Hz - 250 kHz) these can be divided to three types: 1. High Frequency 2. Medium Frequency 3. Low Frequency Their capacities range from less than 1kg to 100MT, which are used for re-melting of iron & steel (steel scrap), copper, aluminium, precious metals and alloys. Even most modern foundries use this type of furnaces and now more iron foundries are replacing Cupolas with Induction Furnace to melt cast iron as the former emit lots of dust & other pollutants. The Steel making via Induction Furnace route has certain advantages & disadvantages: Advantages of Induction Furnace 1. It has no electrodes and electric arcs which allow productions of steel & alloys low in carbon and occluded gases without any quality problem. 2. Low melting losses & alloying elements. 3. High power efficiency, therefore, cost-effective. 4. Precise control of the operating parameters. Disadvantages of Induction Furnace 1. Refining in Induction Furnace is not as intensive or effective as in Electric Arc Furnace (EAF). 2. Life of Refractory lining is low as compared to EAF. 3. Removal of S & P is limited, so selection of charges with less impurity is required. Induction Furnaces are classified generally into two categories: 1. Channel type induction furnace 2. Coreless type induction furnace Fig.- CHANNEL TYPE INDUCTION FURNACE 1. Channel Type Induction Furnace These furnaces basically consist of a vessel to which one or more inductors are attached. The inductor is actually a transformer whereby the secondary winding is formed with the help of a loop of liquid metal confined in a closed refractory channel. -
Historic Properties Identification Report
Section 106 Historic Properties Identification Report North Lake Shore Drive Phase I Study E. Grand Avenue to W. Hollywood Avenue Job No. P-88-004-07 MFT Section No. 07-B6151-00-PV Cook County, Illinois Prepared For: Illinois Department of Transportation Chicago Department of Transportation Prepared By: Quigg Engineering, Inc. Julia S. Bachrach Jean A. Follett Lisa Napoles Elizabeth A. Patterson Adam G. Rubin Christine Whims Matthew M. Wicklund Civiltech Engineering, Inc. Jennifer Hyman March 2021 North Lake Shore Drive Phase I Study Table of Contents Executive Summary ....................................................................................................................................... v 1.0 Introduction and Description of Undertaking .............................................................................. 1 1.1 Project Overview ........................................................................................................................... 1 1.2 NLSD Area of Potential Effects (NLSD APE) ................................................................................... 1 2.0 Historic Resource Survey Methodologies ..................................................................................... 3 2.1 Lincoln Park and the National Register of Historic Places ............................................................ 3 2.2 Historic Properties in APE Contiguous to Lincoln Park/NLSD ....................................................... 4 3.0 Historic Context Statements ........................................................................................................ -
Directory of Theamerican Society of Certified Public Accountants, December 15, 1932 American Society of Certified Public Accountants
University of Mississippi eGrove American Institute of Certified Public Accountants AICPA Committees (AICPA) Historical Collection 1-1-1932 Directory of theAmerican Society of Certified Public Accountants, December 15, 1932 American Society of Certified Public Accountants Follow this and additional works at: https://egrove.olemiss.edu/aicpa_comm Part of the Accounting Commons, and the Taxation Commons Recommended Citation American Society of Certified Public Accountants, "Directory of theAmerican Society of Certified Public Accountants, December 15, 1932" (1932). AICPA Committees. 146. https://egrove.olemiss.edu/aicpa_comm/146 This Book is brought to you for free and open access by the American Institute of Certified Public Accountants (AICPA) Historical Collection at eGrove. It has been accepted for inclusion in AICPA Committees by an authorized administrator of eGrove. For more information, please contact [email protected]. DIRECTORY OF The American Society of Certified Public Accountants Officers-Directors-State Representatives-Committees Members of State Boards of Accountancy Officers of State Organizations Membership Roster Constitution and By-Laws The American Society of Certified Public Accountants National Press Building Washington, D. C. DECEMBER 15, 1932 DIRECTORY OF OFFICIALS, 1932-33 OFFICERS STATE REPRESENTATIVES President: Ralph W. E. Cole, Van Nuys Build Alabama — James O. Screven, Webb Crawford ing, Los Angeles, California. Building, Birmingham. First Vice-President: George P. Ellis, 7 South Alaska — Erling Johansen, Front Street, Dearborn Street, Chicago, Illinois. Petersburg. Second Vice-President: Chesley S. Goldston, Arizona — Willis H. Plunkett, Arizona Fire State-Planters Building, Richmond, Virginia. Building, Phoenix. Treasurer: William D, Morrison, First Na Arkansas — H. W. Hennegin, Southern Build ing, Little Rock. tional Bank Building, Denver, Colorado. -
Induction Furnace Cooling Systems One Foundry’S Experiences
Induction Furnace Cooling Systems One Foundry’s Experiences By David Havel, P.E. ColumBia Steel Casting Co., Inc. SeptemBer 2016 Induction Furnace Cooling Systems 1 Induction Furnace Cooling Systems One Foundry’s Experiences By David Havel, P.E. ColumBia Steel Casting Co., Inc. SeptemBer 2016 ABstract Induction furnaces come in all sizes and are very versatile tools for foundries. All types of metals can be quickly melted in induction furnaces. In addition, these furnaces offer the ability to switch between alloys with minimal alloy cross contamination. All of these features make induction furnaces very popular in foundries. The cooling systems are a critical part of the furnace and are often overlooked until problems arise. When the cooling system is out of control, damage can begin to occur to the cooling system and the components it protects. Past experiences at Columbia Steel Casting Co., Inc. (CSCC) have demonstrated many of the issues that can occur. Sharing these experiences with other companies having similar problems illustrated the need for this paper. This paper will give a generalized description of modern induction furnace cooling systems and identify some of the important factors to control in maintaining these systems. Induction Furnace Cooling Systems 2 Introduction Induction furnaces are comprised of three main components. These components are the power supply (Fig. 1), the furnace Bowl (Fig. 2) and the cooling system. The main components of a modern closed loop induction dry air cooling system (Fig. 3) consist of the pump module, dry air cooler, water path through the power supply, water path through the furnace Bowls, deionizer filter, Back-up system and optional trim cooler. -
Designated Historic and Natural Resources Within the I&M Canal
Designated historic and natural resources within the I&M Canal National Heritage Corridor Federal Designations National Cemeteries • Abraham Lincoln National Cemetery National Heritage Areas • Abraham Lincoln National Heritage Area National Historic Landmarks • Adler Planetarium (Chicago, Cook County) • Auditorium Building (Chicago, Cook County) • Carson, Pirie, Scott, and Company Store (Chicago, Cook County) • Chicago Board of Trade Building (LaSalle Street, Chicago, Cook County) • Depriest, Oscar Stanton, House (Chicago, Cook County) • Du Sable, Jean Baptiste Point, Homesite (Chicago, Cook County) • Glessner, John H., House (Chicago, Cook County) • Hegeler-Carus Mansion (LaSalle, LaSalle County) • Hull House (Chicago, Cook County) • Illinois & Michigan Canal Locks and Towpath (Will County) • Leiter II Building (Chicago, Cook County) • Marquette Building (Chicago, Cook County) • Marshall Field Company Store (Chicago, Cook County) • Mazon Creek Fossil Beds (Grundy County) • Old Kaskaskia Village (LaSalle County) • Old Stone Gate, Chicago Union Stockyards (Chicago, Cook County) • Orchestra Hall (Chicago, Cook County) • Pullman Historic District (Chicago, Cook County) • Reliance Building, (Chicago, Cook County) • Rookery Building (Chicago, Cook County) • Shedd Aquarium (Chicago, Cook County) • South Dearborn Street-Printing House Row North (Chicago, Cook County) • S. R. Crown Hall (Chicago, Cook County) • Starved Rock (LaSalle County) • Wells-Barnettm Ida B., House (Chicago, Cook County) • Williams, Daniel Hale, House (Chicago, Cook County) National Register of Historic Places Cook County • Abraham Groesbeck House, 1304 W. Washington Blvd. (Chicago) • Adler Planetarium, 1300 S. Lake Shore Dr., (Chicago) • American Book Company Building, 320-334 E. Cermak Road (Chicago) • A. M. Rothschild & Company Store, 333 S. State St. (Chicago) • Armour Square, Bounded by W 33rd St., W 34th Place, S. Wells Ave. and S. -
Removal of Calcium Containing Inclusions During Vacuum Arc Remelting
REMOVAL OF CALCIUM CONTAINING INCLUSIONS DURING VACUUM ARC REMELTING by EVA SAMUELSSON M.Sc, Royal Institute Of Technology, Stockholm, 1981 A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in THE FACULTY OF GRADUATE STUDIES Department Of Metallurgical Engineering We accept this thesis as conforming to the required standard THE UNIVERSITY OF BRITISH COLUMBIA November 1983 © Eva Samuelsson, 1983 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the Head of my Department or by his or her representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. Department of Metallurgical Engineering The University of British Columbia 2075 Wesbrook Place Vancouver, Canada V6T 1W5 Date: 15 November 1983 i i Abstract The mechanism of removal of calcium containing inclusions in steel during Vacuum Arc Remelting has been investigated. Laboratory Electron Beam and industrial Vacuum Arc remelting electrodes and ingots were examined. Properties of the steels were determined with the aid of chemical and metallographic methods. It is proposed that the major mechanism of removal is rejection of calcium aluminates to a free surface. One third of the calcium sulphide is rejected with the calcium aluminates. The remainder reacts with aluminium oxide in the aluminates according to the following reaction: CaS + 1/3A1203= CaO + 2/3[Al] + [S] Subsequently, the calcium oxide is also rejected and the dissolved sulphur reacts with sulphide forming elements during solidification.