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  2. Gas tungsten arc welding - Wikipedia

    en.wikipedia.org/wiki/Gas_tungsten_arc_welding

    GTAW weld area. Manual gas tungsten arc welding is a relatively difficult welding method, due to the coordination required by the welder. Similar to torch welding, GTAW normally requires two hands, since most applications require that the welder manually feed a filler metal into the weld area with one hand while manipulating the welding torch in the other.

  3. List of RAL colours - Wikipedia

    en.wikipedia.org/wiki/List_of_RAL_colours

    Mandatory for all steel work in P&G / mandatory for taxis in Germany since 1971, although in limited states only in recent years. RAL 1016: Sulfur yellow: Standard European ambulance colour in accordance with CEN 1789. [2] RAL 1017: Saffron yellow: RAL 1018: Zinc yellow: RAL 1019: Grey beige: RAL 1020: Olive yellow: RAL 1021: Colza yellow

  4. List of welding codes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_codes

    Structural steel welding - Stud welding (steel studs to steel) AS/NZS 1554.3: Structural steel welding - Welding of reinforcing steel AS/NZS 1554.4: Structural steel welding - Welding of high strength quenched and tempered steels AS/NZS 1554.5: Structural steel welding - Welding of steel structures subject to high levels of fatigue loading AS ...

  5. Steel grades - Wikipedia

    en.wikipedia.org/wiki/Steel_grades

    In order to clearly distinguish the steel grade, tubing, casing and its coupling should be painted with color codes respectively. Color bands should be painted on tubing and casing body longer than 600mm to either end. The whole outer-body of the coupling needs to be painted color and then color codes

  6. Chemical coloring of metals - Wikipedia

    en.wikipedia.org/wiki/Chemical_coloring_of_metals

    Various colors on stainless steel 18 Cr / 8 Ni 7.5 g of sodium dichromate , 1000 mL of sulfuric acid (1.24 g/cm 3 ), lead cathodes, object as an anode, 70-90 °C temp, 0,06 A/dm 2 , voltage 1.3 V – colors depend on the duration of the procedure (5-50 min.), brown, blue, reddish brown, yellow, green.

  7. Shielding gas - Wikipedia

    en.wikipedia.org/wiki/Shielding_gas

    C-20 (80% argon/20% CO 2) is used for short-circuiting and spray transfer of carbon steel. C-15 (85% argon/15% CO 2) is common in production environment for carbon and low alloy steels. Has lower spatter and good weld penetration, suitable for thicker plates and steel significantly covered with mill scale. Suitable for short circuit, globular ...

  8. Jennifer Lopez Will Keep 8.5-Carat Green Diamond ... - AOL

    www.aol.com/jennifer-lopez-keep-8-5-022707887.html

    Jennifer Lopez will keep her diamond engagement ring in her divorce settlement with Ben Affleck.. Affleck, 52, proposed to Lopez, 53, with an 8.5-carat green diamond engagement ring after they ...

  9. List of welding processes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_processes

    Damascus steel: Friction welding: 42: FRW Thin heat affected zone, oxides disrupted by friction, needs sufficient pressure Aerospace industry, railway, land transport Friction stir welding: 43: FSW A rotating non-consumable tool is traversed along the joint line Shipbuilding, aerospace, railway rolling stock, automotive industry Friction stir ...

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