Carbon copper casting parts for welding structure (GB / T7659-1987)---------------------------------------------------------------------------------
Carbon copper casting parts for welding structure(GB/T7659-1987) are classified into three groups, General carbon copper casting, Copper-based alloy casting and Copper-magnesium alloy casting. Carbon copper casting is a kind of copper-based alloy casting, which was developed in the late 1800s. It is usually applied to the welding of structures.
The carbon copper casting process begins with the preparation of a wooden or steel pattern. The pattern is then sprayed with parting powder, which is a powdered material that helps to separate the two halves of the mold. The pattern is inserted into the two halves of the mold, which form a cavity to allow the molten metal to be poured into. Once the pattern has been placed into the mold, the mold is subjected to intense heat, usually between 1,200°F and 1,500°F, to allow the metal to melt within the mold. The molten metal is then poured into the mold and left to cool.
Once the casting has cooled, the two halves of the mold are removed to reveal the carbon copper casting part. This casting part may then be machined for a specific purpose, or left in its as-cast form for welding. As carbon copper casting parts have low thermal expansion and contraction properties and a high modulus of elasticity, they are often ideal for welding applications.
When casting carbon copper parts for welding, manufacturers use specific alloys to achieve desired properties. These alloys, such as Gunmetal, Alloy 70, and Alloy 80, contain varying amounts of elements that are designed to enhance the mechanical properties of the parts for a given set of application-specific requirements.
The casting process of carbon copper parts for welding is more intricate than other casting processes, as the parts must be able to withstand the high kinetic energy of welding arcs, thus designing and producing the parts requires specific knowledge and experience. Additionally, casting carbon copper parts requires special kilns and molds, as the alloys high melting point can cause damage to standard molds and kilns.
Once the parts have been cast, they must be tested to ensure they meet the required specifications. This is done by measuring the parts against a predetermined set of parameters. These parameters may include physical measurements of hardness and tensile strength, as well as visual inspection to ensure the parts are free of defects that may interfere with the welding process.
Carbon copper casting parts for welding have proven to be a reliable and cost-effective solution for creating welding structures. The strength and corrosion resistance of carbon copper, combined with its low thermal expansion and contraction properties make it an ideal material for welding, creating strong, reliable structures.
