[China Aluminum Network] The use of experimental methods to study the aluminum titanium boron, excess silicon, rare earth, AlTiBRE master alloy and heat treatment methods on the 6061 aluminum rod strength, and analyzed the internal mechanism. Studies have shown that the content of Al-Ti-B, the amount of rare earth, the addition of AlTiBRE master alloy and the heat treatment process all affect the strength. Later, on the basis of analysis of experimental results, we have found ways and means to increase strength. Introduction 6061 aluminum rods, which are widely used in construction and other industries, not only have good thermoplasticity, excellent corrosion resistance and ideal processing performance, but also are easy to Oxidation coloring. However, due to improper process in production, 6061 aluminum rod casting often appears coarse crystal structure, feather structure, phase precipitates, and casting cracks during solidification, seriously affecting the quality of the alloy, even after homogenization treatment The aluminum alloy composition used for ingots; the second is the material homogeneity when the ingot is completed; the third is the three-temperature control and on-line quenching before the aluminum profile is formed; and the fourth is the aging after the aluminum profile is formed, which is the aluminum profile production. The more basic flow to increase hardness and strength. If we study aluminum design drawings, we must consider the thickness, straightness, load-bearing parts of the aluminum parts, and so on.

The concept of measurement uncertainty and its significance in measurement activities, combined with reality, using 6061 aluminum bar fixed slide × 6000B electrophoretic painted profiles as test materials, establish a mathematical model of measurement uncertainty, and determine its source as the yield load. , Destruction load, sample width and sample thickness, calculate the composite standard uncertainty of each component, and then calculate the composite standard uncertainty of tensile strength and specified non-proportional elongation stress, and obtain the tensile strength, non-specified The extended uncertainty of the proportional elongation stress.

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