Contents contributed and discussions participated by ahmad subahman - technology news

best air compressor buying guide - 0 views

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best air compressor buying guide

shared by ahmad subahman on 17 Mar 11 - No Cached

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ahmad subahman on 17 Mar 11

If you plan to buy air compressor first thing is how pressure size/air flow(PSI) do you want to use(performance you need), How much tank size, what powered want to use(Gas Powered vs. Electric) and also How much Horsepower.

<div class="cArrow"> </div><div class="cContentInner">If you plan to buy air compressor first thing is how pressure size/air flow(PSI) do you want to use(performance you need), How much tank size, what powered want to use(Gas Powered vs. Electric) and also How much Horsepower. </div>

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Best Yahoo! Messenger Tutorial Site - 0 views

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Best Yahoo! Messenger Tutorial Site

shared by ahmad subahman on 25 Jan 11 - No Cached

ahmad subahman on 25 Jan 11

Best Yahoo! Messenger Tutorial Site

<div class="cArrow"> </div><div class="cContentInner">Best Yahoo! Messenger Tutorial Site</div>

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The Sony Ericsson Vivaz Camera - 0 views

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The Sony Ericsson Vivaz Camera cellphones

shared by ahmad subahman on 15 Feb 10 - Cached

ahmad subahman on 15 Feb 10

The brand new Sony Ericsson Vivaz the latest Symbian OS 5th Edition powered smartphone of the Entertainment Unlimited series with an 8.1 megapixel sensor that shoots HD video.

<div class="cArrow"> </div><div class="cContentInner">The brand new Sony Ericsson Vivaz the latest Symbian OS 5th Edition powered smartphone of the Entertainment Unlimited series with an 8.1 megapixel sensor that shoots HD video. </div>

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Power on Two Stroke Cycle - 0 views

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power diesel engines twostrokecycle

shared by ahmad subahman on 10 Feb 10 - Cached

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ahmad subahman on 10 Feb 10

The power stroke starts after the piston passes TDC. Figure 25 illustrates the power stroke which continues until the piston reaches 91° ATDC, at which point the exhaust valves start to open and a new cycle begins.

<div class="cArrow"> </div><div class="cContentInner">The power stroke starts after the piston passes TDC. Figure 25 illustrates the power stroke which continues until the piston reaches 91° ATDC, at which point the exhaust valves start to open and a new cycle begins.</div>

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Type of Brittle Fracture (part 2) - 0 views

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welding crack brittle fracture

shared by ahmad subahman on 08 Feb 10 - Cached

ahmad subahman on 08 Feb 10

The notch that can result from faulty workmanship or from improper design produces an extremely high stress concentration which prohibits yielding.

<div class="cArrow"> </div><div class="cContentInner">The notch that can result from faulty workmanship or from improper design produces an extremely high stress concentration which prohibits yielding. </div>

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How to Identification OF ELECTRODES (BS 639) - 0 views

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welding consumables electrodes identification british standards BS 639

shared by ahmad subahman on 03 Oct 09 - Cached

ahmad subahman on 03 Oct 09

In the BS system (standard BS 639: 1986) for carbon and carbon manganese steels the electrode may be partially or completely specified by a letter or number.

<div class="cArrow"> </div><div class="cContentInner">In the BS system (standard BS 639: 1986) for carbon and carbon manganese steels the electrode may be partially or completely specified by a letter or number.</div>

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Specific Cause and remedies Inclusions, Weld metal cracking and base metal cracking - 0 views

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welding defects inclusions weld metal base cracks

shared by ahmad subahman on 28 Sep 09 - Cached

ahmad subahman on 28 Sep 09

There are some cause and remedies welding defects : Inclusions Cause:Failure to remove slag, Remedies: Clean surface and previous weld bead Cause:Entrapment of refractory oxides, Remedies: Power wire brush the previous bead

<div class="cArrow"> </div><div class="cContentInner">There are some cause and remedies welding defects : Inclusions Cause:Failure to remove slag, Remedies: Clean surface and previous weld bead Cause:Entrapment of refractory oxides, Remedies: Power wire brush the previous bead</div>

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Welding defects, ROOT DEFECTS - 0 views

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welding defects incomplete penetration lack of fusion burnthrough

shared by ahmad subahman on 26 Sep 09 - Cached

ahmad subahman on 26 Sep 09

Below some welding defects, Roots Defects : Incomplete root penetration, lack of fusion, Excess penetration bead, Root concavity. (suck-back, underwashing), etc

<div class="cArrow"> </div><div class="cContentInner">Below some welding defects, Roots Defects : Incomplete root penetration, lack of fusion, Excess penetration bead, Root concavity. (suck-back, underwashing), etc</div>

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Heat Treatment application in welding - 0 views

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heat treatments hardening quenching tempered normalising welds

shared by ahmad subahman on 18 Sep 09 - Cached

ahmad subahman on 18 Sep 09

Many metals must be given heat treatment before and after welding. The inspector's function is to ensure that the treatment is given, and given correctly, to the details supplied.

<div class="cArrow"> </div><div class="cContentInner">Many metals must be given heat treatment before and after welding. The inspector's function is to ensure that the treatment is given, and given correctly, to the details supplied. </div>

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Residual Stress in Welding - 1 views

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residual stress distortion welds defects welding process

shared by ahmad subahman on 17 Sep 09 - Cached

ahmad subahman on 17 Sep 09

Most material products contain residual stresses, often up to yield point. Pipe products, for example, are usually very highly stressed. The tendency to develop residual stresses increases when the heating and cooling are localised.

<div class="cArrow"> </div><div class="cContentInner">Most material products contain residual stresses, often up to yield point. Pipe products, for example, are usually very highly stressed. The tendency to develop residual stresses increases when the heating and cooling are localised.</div>

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How Lameral Tearing Happened ? - 0 views

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welds welding defects lameral tearing cracks

shared by ahmad subahman on 13 Sep 09 - Cached

ahmad subahman on 13 Sep 09

LAMELLAR TEARING. A step like crack that occurs in thick section tee joints and closed corner joints.

<div class="cArrow"> </div><div class="cContentInner">LAMELLAR TEARING. A step like crack that occurs in thick section tee joints and closed corner joints.</div>

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Inspection by Penetrating Liquid - 0 views

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NDT NDE welding inspection non destructive testing dye penetrant test liquid

shared by ahmad subahman on 12 Sep 09 - Cached

ahmad subahman on 12 Sep 09

Inspection by penetrating liquid By means of the inspection with penetrating or technical liquid of penetrating dye, discontinuities can be detected as cracks that enter the surface. A liquid dye is attracted by hair action towards a thin crack, that of another way would be invisible.

<div class="cArrow"> </div><div class="cContentInner">Inspection by penetrating liquid By means of the inspection with penetrating or technical liquid of penetrating dye, discontinuities can be detected as cracks that enter the surface. A liquid dye is attracted by hair action towards a thin crack, that of another way would be invisible.</div>

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Share knowledge,Inspection,NDT,welding procedures,process and techniques - 0 views

shared by ahmad subahman on 09 Sep 09 - Cached

ahmad subahman on 09 Sep 09

useful

<div class="cArrow"> </div><div class="cContentInner">useful</div>

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ahmad subahman on 09 Sep 09

we share about welding inspection tips,welding procedures and techniques for SMAW,MIG,TIG,FCAW,SAW and other welding process for stainlles steel and other alloys,equipments,welders,materials,inspector,NDT,NDE.

<div class="cArrow"> </div><div class="cContentInner">we share about welding inspection tips,welding procedures and techniques for SMAW,MIG,TIG,FCAW,SAW and other welding process for stainlles steel and other alloys,equipments,welders,materials,inspector,NDT,NDE.</div>

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