Copper yokes

Scrap Wiki

Horn Copper, also known as copper-made deflection coil, is named for its trumpet-like appearance. It is commonly found in older models of Cathode Ray Tube (CRT) TVs and monitors, and is responsible for guiding electron flow to the correct position on the screen to create images. The horn copper consists of a copper wire coil wrapped around a certain part of the CRT neck, also known as a deflection coil. Its primary function is to produce a magnetic field when an electric current passes through the copper wire coil. This magnetic field is used to manipulate the direction of the electron beam emitted from the electron gun at the back of the CRT to the fluorescent screen at the front, which lights up the pixels to form images.

Common Classification

Common Sources

Copper-made deflection coils are highly sought after when recycling old CRT TVs and monitors, as they contain copper wires that can be extracted and recycled. Copper is a valuable metal with widespread applications in electrical wiring, pipes, and various electronic and industrial products. The process of recycling copper wires from deflection coils involves disassembling the CRT and removing the coils to recover the copper wires. The coils' copper wires are enameled wires.
As the use of CRT displays has decreased, being replaced by LCD, LED, and other types of flat-panel display technologies, the number of copper-made deflection coils available for recycling has also decreased. Nevertheless, they remain a valuable source of scrap copper in the electronics recycling industry.

Value Points

The copper wire coils of scrap copper-made deflection coils, specifically the enameled wire part, account for approximately 25-30% of the weight. In addition to copper itself, they may contain various impurities, including:
1. Insulation materials: Copper wires are usually wrapped with an insulating coating, typically made of plastic or rubber.
2. Solder: Residual solder may be present at connections between copper wires, which may contain tin, lead, and other metals.
3. Iron components: The iron core or iron clamps of the deflection coils.
4. Adhesives and tapes: Adhesives or tapes used to secure the coils in place.

Processing Methods

Processing these copper-containing impurities requires disassembly and separation. First, manually or mechanically disassemble the CRT display or TV, remove the copper-made deflection coils, and separate the enameled copper wires from the iron core or other non-metallic components.

Detection Methods

Matching Direction

Suitable for manual disassembly and processing factories

Special Attention

Note the iron-made brackets and adhesives/tapes attached to the horn copper

Gallery

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