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How Exothermic Welding Works:
Mold Preparation: A graphite mold is designed to hold the metal conductors in the desired configuration.
Filling the Mold: A high-temperature exothermic reaction is initiated by igniting a mixture of metal powder (usually copper oxide and aluminum) and a flux.
Exothermic Reaction: The reaction produces molten metal (typically copper) and extreme heat (up to 2500°C or 4500°F), which melts the conductors and fuses them together.
Cooling: The molten metal solidifies, creating a strong, permanent, and electrically conductive bond.
Role of Graphite in Exothermic Welding Molds:
Graphite is the preferred material for these molds because of its unique properties:
High Thermal Resistance: Graphite can withstand the extreme temperatures generated during the exothermic reaction without degrading.
Thermal Conductivity: It efficiently transfers heat, ensuring uniform melting and bonding of the conductors.
Smooth Surface Finish: Graphite molds produce clean, precise welds with minimal slag or imperfections.
Durability: Graphite molds can be reused multiple times, making them cost-effective for industrial applications.
Applications of Graphite Exothermic Welding Molds:
Electrical Grounding Systems: Used to create reliable, low-resistance connections for grounding electrodes and conductors.
Railway Tracks: Ensures strong, durable bonds for railway track connections.
Lightning Protection Systems: Provides secure connections for lightning rods and down conductors.
Cathodic Protection: Used in pipelines and other structures to prevent corrosion.
Power and Telecommunication Networks: Ensures reliable connections in electrical and data networks.
Advantages of Graphite Exothermic Welding Molds:
High-Quality Welds: Produces strong, durable, and electrically conductive bonds.
Reusability: Graphite molds can be used multiple times, reducing long-term costs.
Precision: Allows for consistent and accurate welds, even in complex configurations.
Corrosion Resistance: The resulting weld is highly resistant to corrosion, ensuring long-term reliability.
About Us
Zibo Yinxuan Carbon Technology Co, Ltd. (hereinafter as Zibo Yinxuan Carbon) is a professional manufacturer of graphite electrodes, carbon graphite material, graphite powder and machined graphite parts. Zibo Yinxuan Carbon is devoted to graphite research, development, production, machining, application, service and providing competitive graphite application solutions for specific customers' needs.
Zibo Yinxuan Carbon's products include graphite material, anti-oxidation graphite electrodes, graphite granule and powder, carbon raiser and custom graphite machined parts such as graphite shaft and rotor, graphite mould, graphite crucible, graphite anodes, high temperature furnaces graphite components etc. Zibo Yinxuan Carbon possesses proprietary technologies of anti-oxidation, impermeability, lubrication and strengthening treatments, which can obviously extend graphite service life and improve graphite performances. Zibo Yinxuan Carbon firmly executes ISO quality management and assurance system, and strictly conducts batch management and process control. All graphite products go through raw material inspection, process inspection, final product inspection, package inspection and pre-shipment inspection.
Zibo Yinxuan Carbon insists on serving global customers with sincerity and professionalism. Over 90% graphite products are exported to Japan, Korea, Germany, Austria, Spain, Poland, USA, New Zealand and Australia, etc. Zibo Yinxuan Carbon has been approved with good reputation by customers and peer enterprises. With persistent development of Zibo Yinxuan Carbon, value-added products and services will be provided continuously to global customers. Zibo Yinxuan Carbon is ready to cooperate with global customers for mutual benefit and win-win goal.
