Processing method for smelting TC4 alloy ingots by electron beam cold-bed furnace
An electron beam cooling hearth furnace and alloy ingot casting technology, which is applied in the field of titanium alloys, can solve the problems of quality level limitation and application, and achieve the effect of stability and reliability guarantee
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[0033] Embodiment 1, one-time smelting of EB furnace to prepare TC4 alloy slab
[0034] Using electron beam cooling bed furnace to smelt TC4 alloy raw materials at one time to produce TC4 alloy slabs, the numbers are No.1, No.2, No.3, respectively. The specifications and chemical compositions of the ingots are shown in Table 1.
[0035] Table 1. Chemical composition of TC4 alloy slab
[0036]
[0037] The method that above-mentioned production obtains TC4 alloy slab is as follows:
[0038] Using 3150KWB BMO-01 electron beam cooling bed furnace imported from Ukraine, with sponge titanium (grade 1), aluminum vanadium master alloy (58V), aluminum beans, TiO 2 Powder and iron nails are TC4 alloy raw materials, and the single smelting is carried out according to the following steps to obtain TC4 alloy flat ingots:
[0039] 1) Start the electron gun stage: from the start of the electron gun to the melting of the raw material, the liquid flows into the crystallizer for the first...
Example Embodiment
[0048] Embodiment 2, the processing method of TC4 alloy slab
[0049] 1. Straight rolling forming process
[0050] The No.1 and No.2 ingots shown in Table 1 in Example 1 were directly rolled and heat-treated to obtain a TC4 alloy plate, as follows:
[0051] After the ingot is peeled and the riser is cut, the plate direct rolling test is carried out respectively. Among them, No.1 and No.2 ingots are respectively subjected to horizontal-vertical cross rolling and longitudinal rolling, wherein the longitudinal rolling direction is the solidification direction of the ingot (Explanation: the solidification method of the ingot is continuous solidification, and the ingot specification is H (thickness) × B (width) × L (length) as an example, the L (length) direction is the continuous solidification and forming direction of the ingot, that is, the longitudinal direction; the B (width) direction is the transverse direction). After 2 / 4 heat rolling, a plate with a thickness of δ=25 / 8mm...
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