Re: [MW:5739] RE: 5734] welding machine

Hi.

If welding machine verification, not validate the output of voltage and current at specific settings throughout, you must send to repair the welding machine.

Agustin

De: John Du Plessis <duplessisj@saiw.co.za>
Para: materials-welding@googlegroups.com
Enviado: vie, junio 25, 2010 12:42:36 AM
Asunto: [MW:5736] RE: 5734] welding machine

Tiju

You cannot calibrate a welding power source – you can only validate the output characteristics.

Use a conventional bench tester to validate the voltage and amerage characteristics throughout the output curve.

Alternatively use a clamp-on volt/amperage meter which has been calibrated to validate the output of voltage and current at specific settings throughout the range of the output curve.

John du Plessis

Technology Manager

Tel: +27 (11) 298 2100

Tel: +27 (11) 298 2103 (Direct)

Fax: +27 (11) 836 6014

Mobile:+27 (11) 82 883 4970

www.saiw.co.za

This email and any files transmitted with it are confidential and may be legally privileged. They are intended solely for the use of the individual or entity to whom they are addressed. Access to this e-mail by anyone else is unauthorised, and any disclosure, copying, distribution or other use of this e-mail is prohibited and may be unlawful. We will not under any circumstances have any responsibility or liability arising out of or in connection with any unauthorised use of this e-mail. If you have received this email in error please notify the sender before deleting it.

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of tiju koshy
Sent: 24 June 2010 04:24 PM
To: materials-welding@googlegroups.com
Subject: [MW:5734] welding machine

Hi all,

Can any one advise me how to calibrate the welding machine.

Regards
Tiju Koshy

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

Materails FAQs

Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change. Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...

Re: [MW:10788] ON PLOT PIPING & OFF PLOT PIPING

Piping systems involved for the flow lines and gathering lines from the well head isolation valve to the production facility or processing plant isolation valve are determined as OFF PLOT. ON PLOT defines piping system in the processing plant and production platform. ANSI/ASME B31.4 applies for off plot piping system. B31.4 allows the use of either API 1104 or ASME section IX (as appropriate). However, occasionally, a very small system such as piping within 500 feet of a processing plant (some client also said 400 feet) may be declared B31.3 rather than B31.4. When B31.3 is invoked, only ASME Section IX is used. before you decide which code to use for welding procedure and/or welder qualification for pipe welding, you have to know the design and construction code applicable to the system. Please read far enough into scope and diagram illustrating the application of either B31.3 and B31.4 hope this helps rgds 2011/4/21 pradip kumar sil < pradipsil@gmail.com > Dear all, ...

Materials & Welding

Search This Blog