Cfl Light Bulb Ballast Fire

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Cfl Light Bulb Ballast Fire – One-hundred-and-thirty ages back, Thomas Edison finished the first successful sustained evaluation of this incandescent light bulb. With some incremental improvements along the way, Edison’s fundamental technology has emphasized the world ever since. This is all about to change. We’re on the cusp of a semiconductor-based lighting revolution which will finally replace Edison’s bulbs with a far more energy-efficient lighting alternative. Solid state LED lighting will gradually replace virtually every one the countless billions of fluorescent and incandescent lighting in use around the world today.

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To know exactly how revolutionary LED light bulbs are and why they are still expensive, it is instructive to look at how they are fabricated and to compare this to the manufacture of incandescent bulbs. This report explores how incandescent light bulbs are created then contrasts that process with a description of the typical manufacturing process for LED light bulbs. So, let us start by having a look at how conventional incandescent light bulbs are manufactured. You’ll find that this really is a classic instance of an automated industrial process refined in over a century of expertise.


While individual incandescent light bulb types vary in size and wattage, all of them have the 3 basic parts: the filament, the bulb, and the base. The filament is made from tungsten. The linking or lead-in cables are generally made from nickel-iron cable. This cable is dipped to a borax way to make the cable more adherent to glass. The bulb itself is made from glass and has a mixture of gases, usually argon and nitrogen, which increase the life of the filament. Air is pumped from the bulb and replaced with all the gases. A standardized base holds the entire assembly in place. The base is referred to as the ” Edison screw base.” Aluminum is used on the exterior and glass used to insulate the interior of the base.

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Initially produced by hand, light bulb manufacturing is currently almost entirely automated. |} Next, the cable is wound around a metal bar called a mandrel in order to mold it to its appropriate coiled shape, then it is heated in a process called annealing, softening the cable and leaves its structure more uniform. The mandrel is then dissolved in acid. Second, the coiled filament is connected to the lead-in cables. The lead-in cables have hooks at their ends that are either pressed over the conclusion of the filament or, in larger bulbs, spot-welded.

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Third, the glass bulbs or casings are made using a ribbon machine. After heating in a furnace, a continuous ribbon of glass moves along a conveyor belt. Precisely aligned air nozzles blow off the glass through holes in the conveyor belt to molds, making the casings. A ribbon machine going at high speed can create greater than 50,000 bulbs per hour. After the casings are dismissed, they are chilled and then cut off from the ribbon machine. Next, the interior of the bulb is coated with silica to eliminate the glare brought on by a glowing, uncovered filament. The label and wattage are then stamped onto the exterior top of every casing.