Disassembling waste electrical appliances and extracting metals by yourself is an interesting and challenging project, but at the same time it also requires attention to safety and environmental protection. Here are some steps and suggestions to help you do this more efficiently： ### 1. **Classification and preparation** -**Classification of electrical appliances**: Classification of waste electrical appliances by type, such as televisions, computers, mobile phones, washing machines, etc. Different electrical appliances contain different metal components, and classification can help you extract metals in a more targeted manner. -**Preparation tools**: Prepare necessary tools, such as screwdrivers, pliers, hammers, cutting tools, gloves, goggles, masks, etc. Make sure that the tools are complete and suitable for disassembly. ### 2. **Safety first** -**Protective equipment**: Wear gloves, goggles and masks to prevent being scratched by sharp objects or inhaling harmful dust. -**Handling of hazardous substances**: Waste electrical appliances may contain harmful substances such as lead, mercury, and cadmium, as well as hazardous chemicals such as electrolytes and phosphors. Be very careful when disassembling and avoid direct contact with these substances. -**Good ventilation**: Disassemble in a well-ventilated place to avoid inhalation of harmful gases or dust. ### 3. **Disassembly process** -**Step-by-step disassembly**: Starting from the outside, gradually disassemble the electrical shell and remove the internal circuit boards, wires, motors and other components. Use appropriate tools to avoid damaging valuable parts. -**Separation of metals**: Separate different metal parts, such as copper wire, aluminum shell, steel parts, etc. The metals on circuit boards usually include gold, silver, copper, etc., but the extraction of these precious metals requires more complex chemical treatment and is not recommended to be carried out at home. ### 4. **Metal extraction** -**Mechanical separation**: For larger metal parts, they can be separated by cutting, crushing, etc. For example, the copper wire is peeled off from the insulating layer. -**Chemical treatment (not recommended)**: The extraction of precious metals such as gold, silver, etc. usually requires the use of strong acids or other chemical reagents. These processes are not only dangerous, but may also cause pollution to the environment. It is recommended that these parts be handed over to a professional recycling company for disposal. ### 5. **Recycling and treatment** -**Metal recycling**: Sort and store the separated metal, and contact a local metal recycling company for recycling. The recycling prices of different metals are different, and copper, aluminum, etc. usually have a higher recycling value. -**Treatment of non-metallic parts**: For non-metallic parts that cannot be recycled, such as plastics, rubber, etc., they should be treated in accordance with local environmental protection regulations to avoid environmental pollution caused by random disposal. ### 6. **Skills to improve efficiency** -**Batch processing**: Try to deal with multiple pieces of waste electrical appliances at once to reduce repetitive labor. -**Use suitable tools**: Choosing suitable tools can improve disassembly efficiency, such as electric screwdrivers, cutting machines, etc. -**Learning experience**: Learn other people's disassembly experience through the Internet or books to understand the internal structure and metal distribution of different electrical appliances, which helps to improve efficiency. ### 7. **Environmental awareness** -**Reduce pollution**: The waste generated during disassembly should be properly disposed of to avoid pollution to the environment. -**Legal compliance**: Ensure that your disassembly and recycling behavior complies with local laws and regulations, and avoid penalties for improper handling. Through the above steps and suggestions, you can disassemble waste electrical appliances and extract metals more efficiently, while ensuring safety and environmental protection. If you are not sure about certain steps, it is recommended to consult a professional or hand it over to a professional recycling company for processing.