Fluorescent Light Bulbs End Types

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Fluorescent Light Bulbs End Types – One-hundred-and-thirty years back, Thomas Edison completed the first successful ongoing test of the incandescent light bulb. With a few incremental improvements on the way, Edison’s basic technology has emphasized the world ever since. This is about to change. We’re on the cusp of a semiconductor-based lighting revolution that will ultimately replace Edison’s bulbs using a far more energy-efficient lighting alternative. Solid state LED lighting will gradually replace virtually all the hundreds of billions of incandescent and fluorescent lighting being used around the world today.

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To know exactly how revolutionary LED light bulbs are as well as why they are still expensive, it is instructive to check at how they are manufactured and also to compare this to the manufacture of incandescent bulbs. This report investigates how incandescent light bulbs are created and then contrasts that process with a description of the normal production process for LED light bulbs. So, let us begin by taking a look at how conventional incandescent light bulbs are manufactured. You’ll find that this is a classic instance of an automated industrial process refined in more than a century of expertise.


While human incandescent light bulb types vary in size and wattage, so all of them have the three primary components: the filament, the bulb, and the base. The filament is made of tungsten. While quite brittle, tungsten filaments can withstand temperatures of 4,500 degrees Fahrenheit and above. The linking or lead-in wires are generally made of nickel-iron wire. This wire is dipped to a borax solution to make the wire more adherent to glass. The bulb itself is made of glass and contains a mixture of gases, usually argon and nitrogen, which raise the life of the filament. Air is pumped out of the bulb and replaced using the gases. A standardized base retains the entire assembly in place. The base is referred to as the ” Edison screw base” Aluminum can be used on the exterior and glass used to insulate the inside of the base.

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Originally produced by hand, light bulb manufacturing is currently almost entirely automated. |} First, the filament is manufactured with a process known as drawing, in which tungsten is mixed with a binder material and pulled through a die (a shaped orifice) to a fine wire. Then, the wire is wound around a metal bar called a mandrel in order to mold it to its proper coiled shape, and then it is heated in a process known as annealing, softening the wire and makes its construction more uniform. Secondly, the coiled filament is connected to the lead-in wires. The lead-in wires have pins at their ends which are either pressed on the conclusion of the filament or, in bigger bulbs, spot-welded.

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Third, the glass bulbs or casings are made using a ribbon system. Once heating in a furnace, then a continuous ribbon of glass moves along a conveyor belt. Precisely aligned air nozzles blow the glass through holes at the conveyor belt to molds, creating the casings. A ribbon machine moving at high speed can create greater than 50,000 bulbs per hour. Following the casings are blown, they are chilled and then cut from the ribbon system. Then, the inside of the bulb is coated with silica to eliminate the glare caused by a glowing, discovered filament. The wattage and label are then stamped onto the exterior top of each shell.