weld metal การใช้

• Piledrivers support the foundations for big commercial buildings and weld metal beams.
• A fatigue crack had initiated in weld metal on the inner surface of the socket.
• The skills required to weld metal are usually beyond the range of the average do-it-yourselfer.
• In the first few months, he could weld metal no smaller than one-twentieth of an inch.
• After propagating through the weld metal during a large number of flights, the fatigue crack entered the socket's parent metal.
• Composition control of weld metal is often performed to maximise the volume fraction of acicular ferrite due to the toughness it imparts.
• That there's almost nothing original about that concept, which welds metal's thundering intensity with rap's slinky bottom end and verbal gymnastics, really doesn't matter.
• The first two or three digits of the number specify the tensile strength of the weld metal, in thousand pounds per square inch ( ksi ).
• The matching socket in the spar in the right wing was also examined and found to be affected by a similar fatigue crack in the interior of the weld metal.
• He apparently possesses immense strength ( in Adventure 3 he ties knots in telekinetic abilities, being able to paralyse people with a look, weld metal with his bare hands or undo deadbolts with a gesture.
• The opening or gap at the root of the joint and the included angle of the groove should be selected to require the least weld metal necessary to give needed access and meet strength requirements.
• Another common shielding gas, helium, is most often used to increase the weld penetration in a joint, to increase the welding speed, and to weld metals with high heat conductivity, such as copper and aluminum.
• Intense heat focused on a small spot can be used to cut through metal or weld metal components together both by melting metal from the components, and by injecting molten metal from the thermite reaction itself.
• Hot cracking is possible if the amount of ferrite in the weld is not controlled & mdash; to alleviate the problem, an electrode is used that deposits a weld metal containing a small amount of ferrite.
• The efficacy of inclusions as nucleation sites in modern low alloy steel weld metals is such that fine-scale intragranular bainite can nucleate on them, both by continuous cooling and by isothermal transformation below the bainite start temperature.
• The J-Q-M theory includes another parameter, the mismatch parameter, which is used for welds to make up for the change in toughness of the weld metal ( WM ), base metal ( BM ) and heat affected zone ( HAZ ).
• The process incorporates either an igniter for use with standard graphite molds or a consumable sealed drop in weld metal cartridge, semi-permanent graphite crucible mold, and an ignition source that tethers to the cartridge with a cable that provides the safe remote ignition.
• In C-Mn steel weld metals, it is reported that nucleation of various ferrite morphologies is aided by non-metallic inclusion; in particular oxygen-rich inclusions of a certain type and size are associated with the intragranular nucleation of acicular ferrite, as observed, for example, by,.
• Sufficient electrode force is applied to hold the two sheets of metal together and the peak current rapidly creates a forge weld at the interface between the two sheets, producing a small nugget of weld metal, which when cooled results in a shear-resistant metal interface.
• Because the thermite reaction yields relatively pure iron, not the much stronger steel, some small pellets or rods of high-carbon alloying metal are included in the thermite mix; these alloying materials melt from the heat of the thermite reaction and mix into the weld metal.