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The Book of Terms

The Book of TermsThe WJI Book of Wire & Cable Terms: an interactive experience of learning and sharing
This book, written by industry volunteers and containing more than 5,000 entries, is an asset for newcomers to wire and cable.

At the same time, it also represents an opportunity for industry veterans to give back by either updating or adding to the more than 5,000 entries. This is an honor system process. Entries/updates must be non-commercial, and any deemed not to be so will be removed. Share your expertise as part of this legacy project to help those who will follow. Purchase a printed copy here.

   

 

All   0-9   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Filled Core Annular Conductor

A conductor composed of a plurality of conducting elements disposed around a non-conducting supporting material that substantially fills the remaining space.

Filled Tape

Fabric tape which has been thoroughly filled with a rubber or synthetic compound, but not necessarily finished on either side with this compound.

Filler

1) A material used in multi-conductor cables to occupy large interstices formed by the assembled conductors. 2) A substance, often inert, added to a compound to improve properties and/or decrease cost.

Filler Rod

A rod of metal that is melted to provide added metal in arc welding, in­dependently of the electrode.

Filler Wire

Filler metal in the form of a coil of wire that is used to fill the joint in welding processes such as oxy-acetylene and tungsten inert gas arc welding. This term generally refers to filler wire fed in­dependently of the heat source, as distinct from processes where some or all of the metal to fill the joint is obtained by the melting of the electrode itself. Also known as Welding Wire.

Filler Wires

Small auxiliary wires in a strand for spacing and positioning other wires. Also, an alternative name for weft wires in wire mesh.

Filler, Cable

Materials used to fill voids and spaces in a cable construction, normally to give a smooth outer configuration, although it may also serve as flame retardants, etc.

Fillet

A term used when material is used to join two surfaces. It could be a concave junction of two (usually perpendicular) surfaces.

Film

Term used to describe the residual lubricants or rustproofing oil left on a wire surface after processing.

Film Bonded

Cables where bonding is accomplished by solvent-bonding or adhesive bonding wire, cable or spacer to a film to form a cable. See Bonded Cables.

Film Build

The amount of insulating film accumulation on magnet wire as a material that is applied in multiple layers. Film build is defined as a total addition to the bare dimension.

Filter

1) A selective network that allows desired components to pass while suppressing others. 2) A porous substance used to remove suspended impurities or solids from liquid or gas.

Fin

A defect extending from end to end of a bar or other rolled section caused by the spreading of the work piece into the clearance of the rolls, thus producing a thin overfill. If rolled in another pass, a fin usually becomes a lap. A protruding rib of metal running longitudinally along a rolled product, such as results from overfilling rolling pass.

Final Tests

Those performed on the completed product (after manufacturing).

Fine Stranded Wire

Stranded wire with component strands generally of 36 AWG or smaller.

Fine Wire Cloth

Wire cloth that has finer than a 100x100 mesh count with openings of .0055 in. and smaller.

Fines

Product passing through a screen or sieve, as opposed to shorts which remain on the screen or sieve. Small particles or wire material, liberated during the drawing process.

Finish

The surface appearance of a final product whose exterior condition is critical to its function. The finish could be a parameter, such as in steel rolling, where one-side bright and standard one-side bright are types of finish specifications.

Finished Edges

Smooth edges produced by drawing or rolling.

Finishing

1) The act of dissolving materials in molten, purified metal for the purpose of changing its composition to that which is called for in the steel order. 2) Shaping-up of the melt without additions. 3) The actions of finalizing operation to achieve the desired finish of the final product.
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