High-tooth aluminum extrusion heat sink extrusion process and its precautions

【China Aluminum Industry Network】 1. For aluminum molds with high tooth density and tongue ratio, it is recommended to use short aluminum rods (150-200mm) or pure aluminum rods to ensure proper extrusion and reduce the risk of defects. 2. Before starting trial molding, the extrusion center of the aluminum extrusion machine must be properly adjusted. Ensure that the extrusion shaft, the billet, and the die holder’s discharge port are aligned on the same central line to maintain consistent pressure and prevent misalignment. 3. During the trial run and normal production, the heating temperature of the aluminum rod should be maintained between 480°C and 520°C to ensure optimal flow and minimize material defects. 4. The mold heating temperature should follow standard procedures, typically around 480°C. For flat molds with a diameter below 200mm, the insulation time should not be less than 2 hours. For shunt dies, insulation time should exceed 3 hours. Molds with a diameter above 200mm require 4–6 hours of insulation to ensure even core and surface temperatures. 5. Before trial runs or production, clean the cylinder liner using a clean cylinder pad and verify that the extruder is operating correctly. This helps prevent contamination and ensures smooth operation. 6. When starting the trial or initial production, the extruder should be set to automatic gear off, and all pressure settings should be reset to zero. Begin with low pressure and gradually increase it over 3–5 minutes to allow the material to fill the mold properly. Maintain pressure within 100Kg/cm² during filling, with ammeter readings between 2–3A. A pressure range of 80–120Kg/cm² is generally acceptable, after which the speed can be slowly increased. In normal production, extrusion pressure should remain below 120Kg/cm². 7. If any issues such as blockage, partial tooth cutting, or uneven extrusion occur during trial or production, stop the mold immediately and unload it carefully to avoid damaging the mold and reducing scrap rates. 8. During trial runs or production, ensure the discharge port remains unobstructed. Adjust the slip support or fixtures based on the discharge conditions. Monitor the process continuously and respond promptly to any abnormalities. Stop the machine immediately if shutdown is required. 9. During the straightening process, conduct thorough testing before and after any changes. Follow operating procedures, apply moderate force, and strictly monitor product quality to ensure consistency and reliability. 10. When sawing aluminum profiles, ensure the length is accurate according to the production schedule. Avoid feeding the saw blade too quickly to prevent damage to the ends. Securely clamp the workpiece and remove any flash or burrs after cutting. 11. Aluminum alloy profiles should be stored in standardized baskets, with proper padding to prevent damage and maintain the integrity of the finished products. 12. For aging treatment, maintain a temperature of 190 ± 5°C for 2.5–4 hours, followed by air cooling. This process enhances the mechanical properties and dimensional stability of the aluminum profile.

Explosion Proof LED Lamp

Explosion Proof LED Lamp is a specialized lighting fixture designed for use in hazardous environments where there is a risk of explosion due to the presence of flammable gases or vapors. These lamps are constructed with materials that prevent the ignition of explosive gases or dust particles, such as aluminum or stainless steel, and are equipped with a sealed, explosion-proof housing to contain any potential explosions. LED technology is used to provide bright, energy-efficient lighting that is ideal for use in areas such as oil refineries, chemical plants, and other industrial settings where safety is a top priority. These lamps are also designed to withstand harsh environmental conditions, such as extreme temperatures and weather conditions, making them a reliable and durable lighting solution for hazardous environments.

The explosion-proof light, also known as the hazardous location light, possesses several distinctive features. Firstly, it is designed to operate safely in environments where flammable gases, vapors, liquids, or combustible dusts are present, thereby minimizing the risk of explosions. Secondly, these lights are constructed using materials that can withstand high temperatures, shocks, and impacts, ensuring their durability and reliability in challenging conditions. Additionally, explosion-proof lights are equipped with special seals and gaskets to prevent the entry of hazardous substances into the lighting fixture, thereby maintaining a safe and secure environment. Furthermore, these lights are designed to provide efficient illumination while consuming minimal energy, making them energy-efficient and cost-effective. Lastly, explosion-proof lights often come with advanced features such as dimming options, remote control capabilities, and compatibility with smart lighting systems, allowing for enhanced control and customization.

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