Method for producing aluminum-silicon-titanium alloy through one step

A titanium alloy and aluminum-silicon technology, applied in the field of one-step production of aluminum-silicon-titanium alloy, can solve the problems of complicated operation and long process, and achieve the effects of wide source, short production process and high application value

Inactive Publication Date: 2019-01-25
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the existing metho

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1 Using the method of the present invention to produce aluminum silicon titanium alloy

[0037] In the 9000KVA AC submerged arc furnace, high-titanium blast furnace slag and fly ash are used as raw materials to produce aluminum-silicon-titanium alloy. The ratio of raw materials is: 40% high-titanium blast furnace slag, 32% fly ash, 20% coke powder or petroleum coke, 3% binder, and 5% water. Of which Al in fly ash 2 O 3 The content is 38%, SiO 2 The content is 45%, TiO in high titanium blast furnace slag 2 The content is 23%; the fixed carbon content in petroleum coke is 83%. Firstly, the high-titanium blast furnace slag is ground, and its particle size is controlled to 0.075~0.425mm. The reducing agent coke powder or petroleum coke is pretreated to make powder with a particle size ≤ 2mm, and then mixed with the high-titanium blast furnace slag. Fly ash, binder, and water are mixed uniformly in a proportion of 4% and then rolled into pellets; the pellets are dried ...

Example Embodiment

[0039] Example 2 Using the method of the present invention to produce aluminum silicon titanium alloy

[0040] In the 9000KVA AC submerged arc furnace, high-titanium blast furnace slag and fly ash are used as raw materials to produce aluminum-silicon-titanium alloy. The ratio of raw materials is: 40% high-titanium blast furnace slag, 32% fly ash, 20% coke powder or petroleum coke, 3% binder, and 5% water. Of which Al in fly ash 2 O 3 The content is 38%, SiO 2 The content is 45%, TiO in high titanium blast furnace slag 2 The content is 23%; the fixed carbon content in petroleum coke is 83%. Firstly, the high-titanium blast furnace slag is ground, and its particle size is controlled to 0.075~0.425mm. The reducing agent coke powder or petroleum coke is pretreated to make powder with a particle size ≤ 2mm, and then mixed with the high-titanium blast furnace slag. Fly ash, binder, and water are uniformly mixed in a proportion of 5% and then rolled into pellets; the pellets are dried ...

Example Embodiment

[0042] Example 3 Using the method of the present invention to produce aluminum silicon titanium alloy

[0043] In a 9000KVA AC submerged arc furnace, high-titanium blast furnace slag and fly ash are used as raw materials to produce Al-Si-Ti alloy. The ratio of raw materials is: 40% high-titanium blast furnace slag, 32% fly ash, 20% coke powder or petroleum coke, 3% binder, and 5% water. Of which Al in fly ash 2 O 3 The content is 38%, SiO 2 The content is 45%, TiO in high titanium blast furnace slag 2 The content is 23%; the fixed carbon content in petroleum coke is 83%. Firstly, the high-titanium type blast furnace slag is ground, and its particle size is controlled to 0.075~0.425mm. The reducing agent coke powder or petroleum coke is pretreated to make powder with a particle size of ≤2mm, and then mixed with the high-titanium type blast furnace slag. Fly ash, binder, and water are mixed uniformly at a ratio of 4.5% and then rolled into pellets; the pellets are dried at 120°C, ...

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Abstract

The invention belongs to the technical field of alloy smelting, and particularly relates to a method for producing an aluminum-silicon-titanium alloy through one step. Aiming at the problems that an existing aluminum-silicon-titanium alloy method is complex in operation and long in process, the method for producing the aluminum-silicon-titanium alloy through one step comprises the following stepsthat 1, high titanium blast furnace slag and a reducing agent are crushed and uniformly mixed with coal ash, an adhesive and water in proportion, and pressing is conducted to obtain pellets, wherein the reducing agent is coke dust or petroleum coke; 2, the pellets obtained in step 1 are dried and then react for 2-3 h at 1,800-1,950 DEG C and react for 2-3 h at 1,600-1,700 DEG C, the pellets are transferred into a refining furnace, a refining agent is added for conducting refining for 0.8-1.3 h at 1,400-1,700 DEG C, filtering and ingot casting are conducted, and the aluminum-silicon-titanium alloy is obtained. Accordingly, the aluminum-silicon-titanium alloy can be obtained only through one step, the time for producing the aluminum-silicon-titanium alloy is significantly shortened by 0.5-1.5 h, the production process is shorter, the efficiency is high, and the method is suitable for application and popularization.

Description

technical field [0001] The invention belongs to the technical field of alloy smelting, and in particular relates to a method for producing aluminum-silicon-titanium alloy in one step. Background technique [0002] Titanium is a constituent element of non-ferrous metals and some alloy steels and cast steels, which has the ability to refine the alloy structure. Adding 0.1-0.6% titanium to the alloy can not only deoxidize and purify, but also improve the mechanical strength of the alloy at normal temperature and high temperature. For example, when titanium is contained in silicon-aluminum alloy, its crystal structure is refined, and its wear resistance, corrosion resistance and high temperature resistance strength are all enhanced. Therefore, the development of Al-Si-Ti alloys or the addition of titanium to Al-Si alloys is regarded as a hot technology and is highly favored. [0003] High-titanium blast furnace slag is mainly the waste slag produced by vanadium-titanium magnet...

Claims

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Application Information

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IPC IPC(8): C22B1/16C22B1/248C22B7/00C22B4/06C22C1/06
CPCC22B1/16C22B1/248C22B4/06C22B7/001C22C1/06Y02P10/20
Inventor 黄家旭张溅波赵青娥刘亚东
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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