Generally (but not always) pronouns stand for (pro + noun) or refer to a noun, an individual or individuals or thing or things (the pronoun's antecedent) whose identity is made clear earlier in the text. For instance, we are bewildered by writers who claim something like. They say that eating beef is bad for you.
A wire feeder may be used for machine or automatic welding and must be the constant speed type. The wire feeder must have a speed adjustment covering the range of from 10 in. per minute (254 mm per minute) to 125 in. per minute (3.18 m per minute) feed speed. PAW or plasma arc welding using an automated process.
As a general rule, the wire should extend no more than 1 1/4-in. beyond the contact tip. To prevent worm trackingâmarks on the surface of the weld bead caused by gas that the flux in the core of the wire createsâavoid excessive voltage for your given wire feed setting and amperage. It is best to follow the parameters recommended by the filler metal manufacturer for the specific diameter of welding wire.