Flame Hardening

Flame Hardening PDF Author: Hans Wilhelm Grönegress
Publisher: Springer Science & Business Media
ISBN: 3642867219
Category : Technology & Engineering
Languages : en
Pages : 66

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Book Description
This book intended for shop use tries to familiarize the reader with the peculiari ties of a hardening method which due to its many advantages is now in use,many shops. A general knowledge of the principles of hardening and heat treating is presumed. Introduction 1. The name of the process. Flame hardening is a method derived from the old quench hardening and is used for the surface hardening of heat treatable steels. Flame hardening is so named in analogy to flame cutting as the use of a flame is a distinctive feature of this process as opposed to the use of a furnace. 2. Characteristics of flame hardening. In flame hardening the area to be 6 hardened is heated with a burner of large heat capacity (approx. 0.5 · 10 kcaljhr/ meter of flame lengths or 50,000 BTUfhr/inch of flame length) supplied with a mixture of fuel gas and oxygen. The hardening temperature is thus reached in so short a time at the surface that a heat jam is created, that is, more heat is supplied to the surface than can be dissipated to the interior of the workpiece. As the querr ehing takes place immediately after the heating the penetration of the heat to greater depth is prevented and only the outer layer subject to wear is hardened. The core of the workpiece remains unaffected by this heat treatment in cantrast to the other hardening methods where the entire piece is through heated in a furnace.

Flame Hardening

Flame Hardening PDF Author: Hans Wilhelm Grönegress
Publisher: Springer Science & Business Media
ISBN: 3642867219
Category : Technology & Engineering
Languages : en
Pages : 66

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Book Description
This book intended for shop use tries to familiarize the reader with the peculiari ties of a hardening method which due to its many advantages is now in use,many shops. A general knowledge of the principles of hardening and heat treating is presumed. Introduction 1. The name of the process. Flame hardening is a method derived from the old quench hardening and is used for the surface hardening of heat treatable steels. Flame hardening is so named in analogy to flame cutting as the use of a flame is a distinctive feature of this process as opposed to the use of a furnace. 2. Characteristics of flame hardening. In flame hardening the area to be 6 hardened is heated with a burner of large heat capacity (approx. 0.5 · 10 kcaljhr/ meter of flame lengths or 50,000 BTUfhr/inch of flame length) supplied with a mixture of fuel gas and oxygen. The hardening temperature is thus reached in so short a time at the surface that a heat jam is created, that is, more heat is supplied to the surface than can be dissipated to the interior of the workpiece. As the querr ehing takes place immediately after the heating the penetration of the heat to greater depth is prevented and only the outer layer subject to wear is hardened. The core of the workpiece remains unaffected by this heat treatment in cantrast to the other hardening methods where the entire piece is through heated in a furnace.

Surface Hardening of Steels

Surface Hardening of Steels PDF Author: Joseph R. Davis
Publisher: ASM International
ISBN: 1615032509
Category : Technology & Engineering
Languages : en
Pages : 371

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Book Description
Annotation A practical selection guide to help engineers and technicians choose the mot efficient surface hardening techniques that offer consistent and repeatable results. Emphasis is placed on characteristics such as processing temperature, case/coating thickness, bond strength, and hardness level obtained. The advantages and limitations of the various thermochemical, thermal and coating/surface modification technologies are compared

Practical Heat Treating

Practical Heat Treating PDF Author: Jon L. Dossett
Publisher: ASM International
ISBN: 1615031103
Category : Technology & Engineering
Languages : en
Pages : 302

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Book Description
What is heat treatment? This book describes heat treating technology in clear, concise, and nontheoretical language. It is an excellent introduction and guide for design and manufacturing engineers, technicians, students, and others who need to understand why heat treatment is specified and how different processes are used to obtain desired properties. The new Second Edition has been extensively updated and revised by Jon. L. Dossett, who has more than forty years of experience in theat treating operations and management. The update adds important information about new processes and process control techniques that have been developed or refined in recent years. Helpfull appendices have been added on decarburization of steels, boost/diffues cycles for carburizing, and process verification.

Steel and Its Heat Treatment

Steel and Its Heat Treatment PDF Author: Karl-Erik Thelning
Publisher: Butterworth-Heinemann
ISBN: 1483163423
Category : Technology & Engineering
Languages : en
Pages : 697

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Book Description
Steel and Its Heat Treatment, Second Edition presents information, research, and developments in the heat treatment of steel. The book contains chapters that discuss the fundamentals of TTT-diagrams and hardening mechanisms, injection metallurgy and continuous casting, annealing processes, strain aging and temper brittleness. Existing CCT-diagrams are subjected to critical review, the mechanisms controlling hardenability are discussed, and the detailing of the properties of boron constructional steels, micro-alloyed steels and dual-phase steels are also included. Metallurgists, metal workers, and engineers will find the book very useful.

Handbook of Metallurgical Process Design

Handbook of Metallurgical Process Design PDF Author: George E. Totten
Publisher: CRC Press
ISBN: 9780203970928
Category : Technology & Engineering
Languages : en
Pages : 992

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Book Description
Reviewing an extensive array of procedures in hot and cold forming, casting, heat treatment, machining, and surface engineering of steel and aluminum, this comprehensive reference explores a vast range of processes relating to metallurgical component design-enhancing the production and the properties of engineered components while reducing manufacturing costs. It surveys the role of computer simulation in alloy design and its impact on material structure and mechanical properties such as fatigue and wear. It also discusses alloy design for various materials, including steel, iron, aluminum, magnesium, titanium, super alloy compositions and copper.

Handbook of Induction Heating

Handbook of Induction Heating PDF Author: Valery Rudnev
Publisher: CRC Press
ISBN: 1466553979
Category : Science
Languages : en
Pages : 750

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Book Description
The second edition of the Handbook of Induction Heating reflects the number of substantial advances that have taken place over the last decade in theory, computer modeling, semi-conductor power supplies, and process technology of induction heating and induction heat treating. This edition continues to be a synthesis of information, discoveries, and technical insights that have been accumulated at Inductoheat Inc. With an emphasis on design and implementation, the newest edition of this seminal guide provides numerous case studies, ready-to-use tables, diagrams, rules-of-thumb, simplified formulas, and graphs for working professionals and students.

Technical Aids for Small Business; Annual

Technical Aids for Small Business; Annual PDF Author: United States. Small Business Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 376

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Book Description


Flame Hardening

Flame Hardening PDF Author: H. W. Gronegress
Publisher:
ISBN: 9783642867224
Category :
Languages : en
Pages : 68

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Book Description


ASM Handbook

ASM Handbook PDF Author:
Publisher:
ISBN:
Category : Metals
Languages : en
Pages :

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Book Description


Investigation of the Hydraulics of Horizontal Drains in Plumbing Systems

Investigation of the Hydraulics of Horizontal Drains in Plumbing Systems PDF Author: Robert S. Wyly
Publisher:
ISBN:
Category : Drainage, House
Languages : en
Pages : 520

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Book Description
Results are reported from an investigation of the hydraulics of flow in experimental apparatus simulating nominally horizontal simple and branching drains of plumbing systems. The data are correlated with limited findings in an earlier, unpublished NBS study the results of which have been utilized in current plumbing codes. The need for further research is pointed out, particularly in relation to hydraulic performance of drain systems as affected by steep slopes, drain storage volume, energy losses at stack bases, attenuation of water depths and discharge rates in long drains, and large drain diameters.