The effect of AlRE master alloy on the fluidity of A356 alloy was studied by vacuum suction casting method. The experimental results proved that adding appropriate amount of rare earth elements to the alloy melt can reduce the temperature difference between solid and liquidus and reduce the paste solidification tendency of the alloy.
The cast aluminum alloy has the same alloy system as the wrought aluminum alloy, and has the same strengthening mechanism as the wrought aluminum alloy (except for strain strengthening) 7 Casting—cast the aluminum alloy with qualified chemical composition, good modification effect, and gas content and slag content to meet the requirements into ingots and bundles. 8 Inspection and storage-after inspection, the aluminum alloy ingots that are qualified in chemical composition, gas content, inclusions, deterioration effect, Aluminum alloy machining mechanical properties and appearance are accepted as qualified products.
Pre-furnace testing-After the alloy is evenly melted, take samples for testing to check whether various chemical components meet the technical standards.What is the process flow of aluminum casting? Raw material preparation-including raw material appearance inspection, chemical composition analysis, batching and weighing back to various raw materials according to the calculation results of batching.
Refining-After the chemical composition requirements are compounded, refining agents should be used to remove the dissolved gas and entrained solid particles in the alloy. In addition, it also includes the drying and weighing of refining reagents and modifiers. 4 Adjust the composition-after laboratory tests, if one or more of the chemical composition in the alloy is found to exceed the technical standard, it must be adjusted to make the chemical composition meet the technical standard. Refinement and metamorphism-add appropriate amount of refiner and modifier to the aluminum alloy liquid to improve the mechanical properties and machining performance of the alloy.
Tags: Aluminum alloy machining
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