A kind of manufacturing method of titanium alloy casting
A manufacturing method, titanium alloy technology, applied in the field of manufacturing titanium alloy castings, can solve problems such as excessive burning of alloying elements, and achieve the effects of easy operation, reduced number of smelting, and high yield strength
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Embodiment 1
[0047] A kind of ZTC4 titanium alloy casting is prepared, comprising the following steps:
[0048] Step 1: Prepare TA2 titanium ingot and alloy package. TA2 titanium ingot is a cylindrical ingot with a diameter of 200mm and a height of 700mm; the alloy package is composed of AlV55 powder mixed with aluminum powder. The mass of AlV55 powder accounts for the melting amount of titanium ingot The particle size of AlV55 powder is 60-100 mesh, and the quality of aluminum powder accounts for 1%-3% of the melting amount of titanium ingot;
[0049] The chemical composition of TA2 titanium ingot and AlV55 powder is shown in Table 1:
[0050] Table 1 Mass fraction of chemical components in TA2, TA5 and AlV55 (%)
[0051] Grade Ti V Si Fe C N H O Al TA2 margin – – 0.23 0.016 0.028 0.004 0.16 – TA5 margin – – 0.16 0.017 0.030 0.005 0.18 4.1 AlV55 – 50.0～59.0 ≤0.30 ≤0.35 ≤0.15 – – ≤0.20 margin
[0052] At a distance of...
Embodiment 2
[0073] A kind of ZTA5 titanium alloy casting is prepared, comprising the following steps:
[0074] Step 1: Prepare TA2 titanium ingot and alloy bag. The chemical composition of TA2 titanium ingot is shown in Table 1. The TA2 titanium ingot is a cylindrical ingot with a diameter of 200mm and a height of 500mm; the alloy bag is made of high-purity aluminum Composition of high-purity aluminum beans, the quality of high-purity aluminum beans accounts for 3.3% to 4.7% of the melting amount of titanium ingots, and the particle size of high-purity aluminum beans is 2mm to 5mm;
[0075] At a distance of 50 mm from the bottom of the TA2 titanium ingot, drill 5 blind holes evenly upward on the side wall of the TA2 titanium ingot. The interval between adjacent blind holes is 50 mm, the diameter of the blind holes is 25 mm, and the depth is 50 mm;
[0076] Pre-embed the alloy package in the TA2 titanium ingot, first divide the alloy package into 5 parts, and then place an alloy package in...
Embodiment 3
[0088] A kind of ZTA10 titanium alloy casting is prepared, comprising the following steps:
[0089] Step 1: Prepare TA2 titanium ingot and alloy package, the chemical composition of TA2 titanium ingot is shown in Table 1, TA2 titanium ingot is a cylindrical ingot with a diameter of 200mm and a height of 500mm; the alloy package is composed of TiMo15 powder and Composition of nickel flakes, the mass of TiMo15 powder accounts for 1.4%-2.0% of the melting amount of titanium ingot, the particle size of TiMo15 powder is 800-1000 mesh, the mass of nickel flakes accounts for 0.6%-0.9% of the melting amount of titanium ingot, the length of nickel flake 10mm, width 10mm, thickness 1mm;
[0090] At a distance of 50 mm from the bottom of the TA2 titanium ingot, drill 4 blind holes evenly upward on the side wall of the TA2 titanium ingot. The axial interval between adjacent blind holes is 50 mm, the diameter of the blind holes is 25 mm, and the depth is 50 mm;
[0091] Pre-embed the allo...
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