Method for improving mechanical properties of aluminum-titanium-carbon (Al-Ti-C) round wire rod alloy
An aluminum-titanium-carbon, mechanical technology, which is applied in the field of improving the mechanical properties of aluminum-titanium-carbon optical round wire alloys, can solve the problems of affecting product performance, complex processes, and growth of grains at the interface of aluminum-titanium-carbon, and achieves metastable microstructure. Excellent, uniform dispersion, improved refinement effect
Inactive Publication Date: 2012-11-07
昌吉市吉日光有色金属合金制造有限公司
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Problems solved by technology
[0002] Existing aluminum-titanium-carbon alloy processing technology generally focuses on materials, smelting and rolling pressure are large, the casting extrusion area is large, the compression ratio is too large, the cooling area is too large, and the solidification rate is too slow, which affects the growth of aluminum-titanium-carbon interface growth grains. Moreover, the process is complicated, the energy consumption is too large, and there is no systematic consideration of the production process and other issues
Defects in the prior art seriously affect the performance of the product
Method used
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[0018] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0019] Such as figure 1 Shown is a flowchart of an embodiment of the present invention, the method includes the following steps:
[0020] a. Titanium and graphite carbon are ball milled according to the proportion requirements of Ti: 0.3-10% and C: 0.5-10% respectively according to the mass percentage, and mixed to make a prefabricated block;
[0021] b. Preheat the pure aluminum ingot, adjust the crucible furnace to 850-1300°C, add prefabricated blocks in batches, keep warm, stir, refine and degas;
[0022] c. Flow the aluminum liquid in the crucible into the chilled crystallizer, cool it down, and obtain the wire rod;
[0023] d. Cast and draw the wire rod,...
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Abstract
The invention provides a method for improving mechanical properties of an aluminum-titanium-carbon (Al-Ti-C) round wire rod alloy. The method comprises the following steps: a. performing ball milling on titanium (Ti) and graphite carbon (C), and then mixing 0.3-10wt% of Ti and 0.5-10wt% of C to obtain prefabricated blocks; b. pre-heating a pure aluminum ingot, adjusting the temperature of a crucible furnace to 850-1300 DEG C, adding the prefabricated blocks in batches, performing heat preservation, stirring, refining and degassing; c. allowing an aluminum liquid in the crucible furnace to flow into a chilling crystallizer, and cooling to obtain wire rods; and d. performing casting drawing on the wire rods into the needed specification. In the method, recrystallization and grain growth arecontrolled by controlling the crystallization velocity, thermal conductivity, melting point and interface temperature so as to uniformly disperse grains and obtain good metastable structure; and Al-Ti-C is fragmented into small blocks under the action of deformation stress by controlling casting-drawing force so that TiC clusters are damaged to form smaller clusters, thus improving refining effect after deformation.
Description
technical field [0001] The invention belongs to the technical field of metal material processing, and relates to the refining mechanism of aluminum-titanium-carbon mechanical properties. In the process of smelting and metallurgy, the refining process after the wire rod is rapidly solidified and broken under the action of deformation stress is specifically a method for improving Al-Ti-C Light Park Wire Alloy Mechanical Methods. Background technique [0002] Existing aluminum-titanium-carbon alloy processing technology generally pays attention to materials, smelting and rolling pressure are large, the casting extrusion area is large, the compression ratio is too large, the cooling area is too large, and the solidification rate is too slow, which affects the growth of aluminum-titanium-carbon interface growth grains. Moreover, the process is complicated, the energy consumption is too large, and there is no systematic consideration of the production process and other issues. Th...
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IPC IPC(8): C22C21/00C22C1/02B21C1/00C22F1/04
Inventor 周凡
Owner 昌吉市吉日光有色金属合金制造有限公司