AWS FGW : 0
AWS FGW : 0
FUMES AND GASES IN THE WELDING ENVIRONMENT
American Welding Society
Personnel
Preface
Supporting Organizations
Contributing Organizations
Abstract
Introduction: Research Program on Improving the Welding
Environment
Overview of Fume Constituents
Survey of Part 1, Fume Ventilation Data
Survey of Part II, Fumes from Arc Welding Electrodes
Survey of Part III, Fumes from Brazing
Survey of Part IV, Fumes from Thermal Spraying
Survey of Part V, Fumes from Oxygen Cutting
Organization of this Report
Part I - Ventilation Studies
Introduction
Scope
Limitations
Program
Equipment, Materials, Procedure
List of Symbols Used in Sections IA, IB, and IC
Section IA - General Room Ventilation
Fluid Dynamic Considerations'
Room Ventilation
Section IB - Local Ventilation
Data Needed
Calibration of Equipment
Experimental Procedure
Experimental Results
Section IC - Local Exhaust Studies
Calibration of Equipment
Experimental Procedure
Experimental Results
Application of Results of Part I
Question 1
Question 2
Question 3
Summary of Part I
Part II - Arc Welding Fumes and Gases
Introduction
Scope
Limitations
Program
Equipment, Materials, Procedure
Section IIA - Laboratory Test Method
Procedures
Chamber Evaluation
Experimental Results
Section IIB - Fume Generation Characteristics of Arc Welding
Electrodes
Baseline Data
Covered and Flux Cored Electrodes
Solid Electrodes
Section IIC - Effects of Process Variables on Fume Generation
Rates
Current Effects
Current Density Effects
Arc Voltage-Arc Length Effects
Effects of Iron Powder Additions
Other Studies
Section IID - Analytical Studies
Analysis of Fume
Fume Characterization
Gas Detection
Section IIE - Effect of Humidity on Fume Sampling
Sampling Area
Experimental Procedures
Experimental Results
Summary of Part II
Principal Fumes and Gases Present
Covered Electrodes
Flux Cored Electrodes
Solid Electrodes
Fume Generation Characteristics of Gas Tungsten Arc
Welding III
Process Variables III
Other Studies
Analytical Studies
Part III - Brazing Fumes and Gases
Introduction
Scope
Limitations
Program
Equipment, Materials, Procedure
Section IIIA - Total Fume Generation Characteristics
Flux Covered Melts
Gas Covered Melts
Ingot Weight Losses
Section IIIB - Fume Composition
Flux Covered Melts
Gas Covered Melts
Discussion of Analytical Data
Ingot Composition and Weight Changes
Discussion
Filler Metal Handling and Surface Protection
Filler System
Test Chamber
Analytical Procedures
Summary of Part III
Part IV - Thermal Spraying Fumes and Gases
Introduction
Scope
Limitations
Program
Equipment, Materials, Procedures
Section IVA - Gas Combustion Spraying
Discussion
Section IVB - Electric Arc Spraying
Discussion
Summary of Part IV
Part V - Fumes and Gases from Oxygen Cutting
Introduction
Scope
Limitations
Program
Equipment, Materials, Procedures
Section VA - Oxyacetylene Cutting
Cutting under Normal Conditions
Cutting at Various Gas Pressures
Cutting at Various Speeds
Section VB - Oxymethane Cutting
Cutting under Normal Conditions
Cutting at Various Pressures
Cutting at Various Speeds
Discussion
Fume Composition
Fume Particles
Importance of Fume Generation Rates
Summary of Part V
Appendix A - Electrodes Usedin Partll, Tables Al to A3
Appendix B - Tables Bl to B43 (Tabular Data on Fume
Generation Characteristics of
Electrodes Used in Part II)
Appendix C - Tables Cl to C4 (Summary of Original Data,
Part III)
Appendix D - Tables Dl andD2 (Laboratory Data Sheets for
Part IV)
Appendix E - Tables El to E6 (Laboratory Data Sheets for
Part V)
References and Literature Surveyed
Introduction, 1-6
Part I, 1.1-1.4
Part II, 2.1-2.24
Part III, 3.1-3
Part V, 5.1, 5.2
Index
A follow-up study of fumes and gases generated during arc welding, brazing, thermal spraying and oxygen cutting.
Document Type | Standard |
Status | Current |
Publisher | American Welding Society |