API 1104 Welding of Pipeline and Related Facilities

FOREWORD

This standard was prepared by a formulating committee that included representatives of the American Petroleum Institute, the American Gas Association, the Pipe Line Contractors Association, the American Welding Society, and the American Society for Nondestructive Testing, as well as representatives of pipe manufacturera and individuals associated with related industries.

The purpose of this standard is to present methods for the production of high-quality welds through the use of qualined welders using approved welding procedures, materials, and equipment. Its purpose is also to present inspection methods to ensure the proper analysis of welding quality through the use of qualined technicians and approved methods and equipment.

It applies to both new construction and in-service welding. The use of this standard is entirely voluntary and is intended to apply to welding of piping used in the compression, pumping, and transmission of crude petroleum, petroleum products, fuel gases, carbon dioxide, and nitrogen and, where applicable, to distribution Systems.

This standard represents the combined efforts of many engineers who are responsible for the design, construction, and operation of oil and gas pipelines, and the committee appreciative acknowledges their wholehearted and valuable assistance.

From time to time, revisions of this standard will be necessary to keep current with technologie developments. The committee is always anxious to improve this standard and wil give full consideration to ail comments received.

An appeal of any API standards action by an interested party shall be directed to the API.

API publications may be used by anyone desiring to do so. Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any federal, state, or municipal regulation with which this publication may confiiet.

Suggested revisions are invited and should be submitted to the general manager of the Pipeline Segment, American Petroleum Institute, 1220 L Street, N.W., Washington, D.C. 20005.

ATTENTION USERS: Portions of this standard have been changed from the previous edition. The locations of changes have been marked with a bar in the margin, as shown to the left of this paragraph. In some cases, the changes are significant, while in other cases the changes reflect minor editorial adjustments. The bar notations are provided as an aid to users as to those parts of the standard that have been changed from the previous edition, but API makes no warranty as to the accuracy of such bar notations.

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Engineering Structural Welding

Introduction
Background

This Fabricators and Erectors Guide to Welded Steel Construction has been produced by The Lincoln Electric Company in order to help promote bigh quality and cost effective welding. This guide is not to be used as a substitute for the AWS D1.1 Structural Welding Code, or any other applicable welding code or specification, and the user bears the responsibility for following applicable codes and job requireinents. Rather, this document incorporates references to the D 1.1-9 6 code, and adds esplanation. clarification, and guidelines to facilitate compliance with the code. At the time of writing, this guide reflects the current industry viens with respect to steel fabrication, with specifie emphasis on the new provisions that have been recently iniposed for fabrication of structures designed to resist seismic loads. These provisions are largely drawn front the Federal Emergency Management Administration (FEMA) Document No. 267, produced by the SAC Consortium, whose members include the Structural Engineers Association of Califomia, Applied Technology Council and California Universities for Research and Earthquake Engineering. Another cited document is me AWS Dl .Structural Welding Conimittee's Position Statement on the Northridge earthquake. Research is stiil underway, and additional provisions may be found mat with further increase the safetyof welded steel structures. The user of this document must be aware of changes that may occur to codes published after this guide, specifie job requirenients. and varions intorim recommendations that may affect me recommendations contained herein.

The Januaiy 1994 Northridge earthquake revealed a number of examples of lack of confbrmance to Dl.l code mandated provisions. Lack of confbrmance to code provisions, and the poor workmanship revealed in many situations, highlight the need for education. This document is one attempt to assist in that area.

The information contained herein is believed to be current and accurate. It is based upon the ciment technology, codes, specifications and principles of welding engineering. Any recommendations wilt be subject tochange pending the results of engineering research. As always, it is the responsibility of the Engineer of Record, and not The Lincoln Electric Company, to spedfy the requirements for aparticularproject. The prerogative to specify altemate requirements is alivav; within the authority of the Engineer of Record and. when more restrictive requirements are specified in contract documents. compliance with such requirements would supersede the preceding recommendations. Acceptance of criteria by the Engineer of Record mat are less rigorous than the preceding does not change.

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Welding & Bolting

What Will You Gain From This Presentation?

General knowledge of structural steel

An understanding of the different ways that structural steel is connected

Insight into types of bolts and their installation

An awareness of types of bolted joints used for structural steel

Knowledge of welding terminology, weld types, and welding processes

Familiarity with common weld inspection methods and considerations associated with field welding.

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Welding Of Aluminum & Its Alloys - Gene Mathers

Author :G  Mathers   

Release Date:24 Sep 2002

Imprint:Woodhead Publishing

Print Book ISBN :9781855735675

eBook ISBN :9781855737631

Pages:248

Preface

Engineering is not an exact science and, of the many disciplines within engineering, welding is probably one of the most inexact  rather more of an art than a science. Much of the decision-making is based on experience and a gut feel for what is or is not acceptable. When the difficulties of shop floor or site control are taken into account and the occasional vagaries of the welder and the sometimes inadequate knowledge of supervisory staff are added, the problems of the practising shop floor engineer can appear.

overwhelming. I hope that some of this uncertainty can be dispelled in this book, which is aimed at those engineers with little or no knowledge of metallurgy and perhaps only the briefest acquaintance with the welding processes. It does not purport to be a metallurgical or processes textbook and I make no apology for this. Having lectured fairly extensively on welding technology, I have come to realise that most engineers think of metals as being composed of a large number of small billiard balls held together by some form of glue. I have attempted to describe the metallurgical aspects of the aluminium alloys in these terms. I have therefore kept the contents descriptive and qualitative and have avoided the use of mathematical expressions to describe the effects of welding.

The book provides a basic understanding of the metallurgical principles involved in how alloys achieve their strength and how welding can affect these properties. I have included sections on parent metal storage and preparation prior to welding and have also described the more frequently encountered processes. There are recommendations on welding parameters that may be used as a starting point for the development of a viable welding procedure.

Also included are what I hope will be useful hints and tips to avoid some of the pitfalls of welding these sometimes problematic materials. I would like to thank my colleagues at TWI, particularly Bob Spiller, Derek Patten and Mike Gittos, for their help and encouragement during the writing of this book encouragement that mostly took the form of "Haven't you finished it yet?".Well, here it is. Any errors, inaccuracies or omissions are mine and mine alone.

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Mirror

API 650 welded steel tank for oil storage 2001

FOREWORD
This standard is based on the accumulated knowledge and experience of purchasers and
manufacturers of welded steel oil storage tanks of various sizes and capacities for internal
pressures not more than 21/2 pounds per square inch gauge. This standard is meant to be a
purchase specification to facilitate the manufacture and procurement of storage tanks for the
petroleum industry.
If the tanks are purchased in accordance with this standard, the purchaser is required to
specify certain basic requirements. The purchaser may want to modify, delete, or amplify
sections of this standard, but reference to this standard shall not be made on the nameplates
of or on the manufacturer�s certification for tanks that do not fulfill the minimum requirements
of this standard or that exceed its limitations. It is strongly recommended that any
modifications, deletions, or amplifications be made by supplementing this standard rather
than by rewriting or incorporating sections of it into another complete standard.
The design rules given in this standard are minimum requirements. More stringent design
rules specified by the purchaser or furnished by the manufacturer are acceptable when mutually
agreed upon by the purchaser and the manufacturer. This standard is not to be interpreted
as approving, recommending, or endorsing any specific design or as limiting the
method of design or construction.
This standard is not intended to cover storage tanks that are to be erected in areas subject
to regulations more stringent than the specifications in this standard. When this standard is
specified for such tanks, it should be followed insofar as it does not conflict with local
requirements.
After revisions to this standard have been issued, they may be applied to tanks that are
to be completed after the date of issue. The tank nameplate shall state the date of the edition
of the standard and any revision to that edition to which the tank has been designed
and constructed.
Each edition, revision, or addenda to this API standard may be used beginning with the
date of issuance shown on the cover page for that edition, revision, or addenda. Each edition,
revision, or addenda to this API standard becomes effective six months after the date of issuance
for equipment that is certified as being rerated, reconstructed, relocated, repaired, modified
(altered), inspected, and tested per this standard. During the six-month time between
the date of issuance of the edition, revision, or addenda and the effective date, the purchaser
and manufacturer shall specify to which edition, revision, or addenda the equipment is to be
rerated, reconstructed, relocated, repaired, modified (altered), inspected, and tested.
API publications may be used by anyone desiring to do so. Every effort has been made by
the Institute to assure the accuracy and reliability of the data contained in them; however, the
Institute makes no representation, warranty, or guarantee in connection with this publication
and hereby expressly disclaims any liability or responsibility for loss or damage resulting
from its use or for the violation of any federal, state, or municipal regulation with which this
publication may conflict.
The purchaser shall specify whether tanks supplied to this standard will have SI dimensions
and comply with applicable ISO standards, or have U.S. Customary dimensions and
comply with applicable U.S. standards. Where conflicts arise between SI and U.S. Customary
units, the U.S. Customary units will govern.
Suggested revisions are invited and should be submitted to the American Petroleum Institute,
1220 L Street, N.W., Washington, D.C. 20005, standards@api.org.

Welding Tricks & Secrets

I have seen a lot of welds in my life. I've seen them on new products and on repair
jobs. The variety of welds I've seen lately is enough to convince me that some people
still don't know where not to weld.
In this book I've tried to help those of you who will go on welding a long time after
I am gone. I've tried to illustrate as clearly as I know how- in words and in pictures
-some of,the places that should not be welded.
I 'ye also included some tips that will help you do a better, safer job in places that should be welded.
I hope this book will help you be a better welder. The information in it -gathered
the hard way over 49 years -has certainly helped me

How To Remove A Bad Bearing Race Or Cup From A Hole. 1
HowToBuildUpAWornShaft 1
How To Burn A Nut Off Of A Bolt And Save The Threads On The Bolt 3
How To Expand A Nut. 3
How To Shrink A Nut. 3
Camouflage. 4
HowToRemoveABroken-OffBolt 4
Case Hardening. 5
HowToSquareAFrameByWeldingOrPeening 5
HowToMakeAWarpedSteelFrameLieFlat 6
HowToWeldAScreenWireToASteelFrame 8
HowToMakeASmoothCutWithACuttingTorch 9
How To Do Overhead Welding. 9
How To Weld Thick To Thin. 9
How To Make A Smooth Bead. 10
Vertical Weld 10
How To Flux Lead. 10
Bulge 10
HowToBu~nAWeldAndSaveBothPieces 11
Big John. 12
NotchEffect 13
HowToRemoveABroken-OffTap 13
Built In Stresses. 14
Crystals 14
HowToBurnThroughALargeSteelShaft " 15
MyFirstCommercialWeld 15
CastlronWeldedWithNickelElectrodes 16
Straighten6InchStrip 16
ClevisOnChannellron 17
HowToTemperAChisel , 18
HowToMakeACircleLieFlat 18
HowToRemoveAStuckSleeveFromAHole 19
HowToShrinkASteelPulley 19
ReinforcelnsideOfTubingOrPipe 19
HowToRepairACracklnAPieceOfTubing 20
WeldlnsertedPipe 21
Another Method For Welding Pipe. 22
Build Up Inside Of Tubing. 23

Intelligentized Methodology for Arc Welding

Abstract 

In this chapter,an introductionis given on the development of welding handicraft,manufacturing technology and key technologies of welding automation and intelligentization. Recent twenty years have seen great development of welding

robot in modern manufacturing industry,where arc welding is one of the main stream technology.A large number of researches show that automatic control of the welding process requires not only good performance of the equipment,but also technologies,namely sensing,modeling and controlling of the welding process.None of the technologiesis neglectable for welding process control,in which sensing is to monitor thep rocess and extract characteristic information of the welding process modeling is to identify thep rocess based on acquired information;and controlling is to regulate the welding process based on the established models.The main partin controllingistodesigncontrollerformulti-variablescoupled,nonlinearandtime-
varyingsituations.

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Robotic Welding Intelligence and Automation

Robotic Welding Intelligence and Automation

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Abstract.

For modern transport systems Aluminumis getting of growing importance.To fully utilize this potential economic,effective and stable joining technologies have to be available.However, the special features of Aluminium materials like high heat conductivity,oxide formation,pore and hot cracking susceptibility require special measures for high quality welding especially for thin sheet metals.New developments in gas metal arc welding power sources, torches and wire feeders for Aluminum welding to overcome these problems will be described.Besides the technological factors system aspects and their influencean process stability and manufacturing up-time will also bediscussed.Actual and potential future applications of these new developments will be demonstrated.

Robotic Welding Intelligence and Automation
Robotic Welding Intelligence and Automation.rar
Robotic Welding Intelligence and Automation.pdf

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Guidelines To Gas Tungsten Arc Welding (GTAW)

SECTION 1 - SAFETY1

SECTION 2 - THE TIG PROCESS2
2-1.What Is TIG2
2-2.GTAW (TIG) Connections 2
2-3.TIG Advantages 3
2-4.TIG Disadvantages 3
2-5.AC Sine Wave 4
2-6.Zero Crossover Area 4
2-7.Squarewave Imposed Over A Sinewave 5
2-8.Conventional Squarewave AC 5

SECTION 3 - ARC SHAPING CAPABILITIES 6
3-1.Arc Starting Methods 6
3-2.Balance Control 6
3-3.AC Frequency Adjustment Control 7
3-4.Amperage Adjust Control 7
3-5.Frequency Adjustment Control - 60 Hz8
3-6.Frequency Adjustment Control - 200 Hz8
3-7.Suggested Inverter Power Source Starting Parameters For Various Alumunium joints
3-8.Suggested Inverter Power Source Starting Parameters For Various

SECTION 4 - TUNGSTEN SELECTION AND PREPARATION11
4-1.Safety Information And Selecting Tungsten Electrodes 11
4-2.Selecting A Tungsten Electrode 11
4-3.Proper Tungsten Preparation 11
4-4.More About Tungsten Preparation 12
4-5.Tungsten Shape For AC Sine Wave & Conventional Squarewave 13
4-6.Tungsten Shape For Inverter AC & DC 13

SECTION 5 - TIG SHIELDING GASES 14
5-1.TIG Shielding Gases 14
5-2.Argon vs. Helium 14
5-3.Argon/Helium Mixes 15

SECTION 6 - GUIDELINES FOR GTAW WELDING (TIG) 16
6-1.Lift-Arc And HF TIG Start Procedures 16

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