Neon lights are made using a process called neon tube bending. Here's a simplified overview of how neon lights are created:
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Tube preparation: A glass tube, typically made of borosilicate glass, is selected for the desired size and shape of the neon light. The tube is cleaned and prepped to remove impurities.
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Gas filling: The prepared tube is connected to a vacuum pump, and air is removed to create a vacuum inside the tube. Then, a specific gas mixture is introduced into the tube. Neon gas, which gives the lights their iconic red color, is commonly used. Other gases, such as argon or helium, can be added to create different colors.
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Electrodes and sealing: Electrodes made of metal, usually iron or coated with a mixture of metals, are attached to each end of the glass tube. These electrodes serve as the connection points for electrical current to pass through the gas-filled tube. The electrodes are sealed to ensure airtightness.
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Tube bending: The glass tube is heated using a high-temperature flame or a ribbon burner. The heat softens the glass, allowing it to be bent into the desired shape. Skilled glassblowers or neon sign makers carefully manipulate the heated tube to create letters, shapes, or designs.
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Wiring and power supply: Once the glass tube has been bent and cooled, the electrodes are connected to wiring that leads to a power supply. The power supply provides the necessary voltage to ionize the gas inside the tube, causing it to emit light.
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Testing and finalization: The neon light is tested to ensure proper functionality and desired brightness. Any necessary adjustments, such as fine-tuning the gas mixture or repositioning the electrodes, may be made at this stage. Once the neon light passes testing, it is mounted or installed for its intended use.
It's important to note that the process of creating neon lights requires specialized equipment, skills, and safety precautions. Professional neon sign manufacturers or skilled artisans typically undertake the production of neon lights to ensure precision and quality.
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