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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

Furnace, Radiant Tube

A gas furnace in which the products of combustion do not enter the furnace, but are circulated through tubular elements from which the heat is transmitted to the charge by radiation. Also called a gas tube furnace.

Furnace, Roller Hearth

A furnace in which the charge is moved over driven rollers, sometimes water-cooled.

Furnace, Rotary Hearth

A furnace that is annular in plan, moving round continuously or intermittently, conveying its charge from the charging to the discharging doors.

Furnace, Salt Bath

A furnace in which the material to be heated is placed in or passed through molten salt. The molten salt acts both as a temperature transfer medium, as well as a protective barrier against damage to the material being heated, which could occur if it is heated in ambient air.

Furnace, Shaft

A furnace open at both ends in which product is passed through. Also called a pit furnace.

Furnace, Shaker Hearth

A furnace for small parts that are placed on a grooved or plain plate which is agitated at predetermined intervals, causing the charge to move through the heating zone at a controlled speed.

Furnace, Strand Type

A continuous furnace in which wires are run straight from bobbins through the heating and cooling chambers, the tension being maintained by the winding frames situated adjacent to the exit end of the cooling chamber. For annealing, it is necessary for each wire to run through a small-bore tube into which the protective atmosphere is introduced.

Furnace, Tube Type

A furnace that has tubes through which individual wires can run through continuously.

Fuse

A protecting device that opens a circuit when the fusible element is severed by heating, due to over-current passing through. Rating: voltage, normal current, maximum let-thru current, time delay of interruption.

Fuse, Dual Element

A fuse that has both an over-current limit and a time delay before activation.

Fuse, Nonrenewable

A fuse that must be replaced after it interrupts a circuit. Also referred to as a one-time fuse.

Fuse, Renewable Link

A fuse that may be reused after current interruption by replacing the meltable link.

Fused Coating

A metallic coating (usually tin or solder alloy) that has been melted and solidified, forming a metallurgical bond to the base metal.

Fused Conductors

Individual strands of heavy tinned copper wire stranded together and then bonded together by induction heating.

Fused Spiral Tape

A PTFE insulated hookup wire. The spiral-wrapped conductor is passed through a sintering oven where overlaps are fused together.

Fusible Link, Cable

Cable that provides the features of a fuse. The conductor overheats and burns away when fed more current than that rated for by the cable.

Fusing

Fusing, or wire fusing, describes the termination of a magnet wire by application of heat without prior removal of its film insulation. The insulation is removed during the fusing process. Hot Staking is a specific term used for the fusing of commutators.

FX

Designation for single rubber-insulated Christmas tree wire with outer braid, 125V, 60°C.

FXT

Designation for single plastic-insulated Christmas tree wire, 125V 60°C.

FZCV

Designation for continuous vulcanization process using silicon oil.
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