Production method of aluminum-silicon-titanium alloy

A production method and titanium alloy technology, which is applied in the field of alloy smelting, can solve problems such as difficulty in extraction, and achieve the effects of reducing titanium components, reducing environmental burdens, and reducing construction investment

Inactive Publication Date: 2013-08-28
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the other hand, cold high-titanium blast furnace slag and fly ash are two common industrial solid wastes with huge reserves. very difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0050] Mix petroleum coke, fly ash, binder and water evenly in the following proportions, fly ash is 55 parts, petroleum coke is 35 parts, binder is 5 parts, water is 5 parts, and then the mixture is rolled Pellet and dry at 150°C. Among them, Al in fly ash 2 o 3 The content is 36%, SiO 2 The content is 47%; TiO in high titanium type blast furnace slag 2 The content is 22%; the fixed carbon content in petroleum coke is 82%.

[0051] Put the dried and dehydrated pellets into a submerged electric arc furnace for smelting, the temperature in the furnace is 1950°C, and the reduction reaction time is 3 hours. After the reaction is complete, put cold high-titanium blast furnace slag powder into the submerged arc furnace for smelting at a temperature of 1600°C. 60%, after 3 hours, it will be released one after another; continue to refine in the refining furnace for 1 hour, the refining temperature is 1700 ℃, then filter to remove slag, and cast to obtain aluminum silicon titaniu...

example 2

[0053] Mix coke powder, fly ash, binder and water evenly in the following proportions, fly ash is 75 parts, coke powder is 15 parts, binder is 6 parts, water is 4 parts, and then the mixture is rolled Pellet and dry at 100°C.

[0054] Among them, Al in fly ash 2 o 3 The content is 15%, SiO 2 The content is 34%; TiO in high titanium blast furnace slag 2 The content is 20%; the fixed carbon content in coke powder is 83%.

[0055] Put the dried and dehydrated pellets into a submerged electric arc furnace for smelting, the temperature in the furnace is 1800°C, and the reduction reaction time is 4 hours. After the reaction is complete, put cold high-titanium blast furnace slag powder into the submerged arc furnace for smelting at a temperature of 1700°C, wherein the amount of cold high-titanium blast furnace slag added is 1 / 2 of the amount of fly ash 30%, after 2.5 hours, it will be released one after another; continue to refine in the refining furnace for 1.5 hours, the refin...

example 3

[0057] Mix petroleum coke, fly ash, binder and water evenly in the following proportions, fly ash is 65 parts, petroleum coke is 25 parts, binder is 5 parts, water is 5 parts, and then the mixture is rolled Pellet and dry at a temperature of 120°C. Among them, Al in fly ash 2 o 3 Content is 40%, SiO 2 The content is 65%; TiO in high titanium type blast furnace slag liquid 2 The content is 24%; the fixed carbon content in petroleum coke is 83%.

[0058] Put the dried and dehydrated pellets into a submerged electric arc furnace for smelting, the temperature in the furnace is 1900°C, and the reduction reaction time is 3.5 hours. After the reaction is complete, put cold high-titanium blast furnace slag powder into the submerged arc furnace for smelting at a temperature of 1650°C. 40%, after 3 hours, it will be released one after another; continue to refine in the refining furnace for 1 hour, the refining temperature is 1550°C, then filter to remove slag, and cast to obtain al...

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Abstract

The invention provides a production method of aluminum-silicon-titanium alloy. The production method comprises the following steps: evenly mixing the following raw materials in parts by weight: 55-75 parts of pulverized fuel ash, 15-35 parts of carbonaceous reducing agent, 5-7 parts of binder, and 4-6 parts of water, then pressing into pellets, and drying; adding the dried pellets into an ore-smelting heating arc furnace for smelting, and controlling the temperature inside the furnace to be 1,800-1,950 DEG C; after the reaction is entirely finished, filling cold-state high-titanium blast furnace slag powder into the ore-smelting arc furnace for smelting, and controlling the temperature inside the furnace to be 1,600 DEG C-1,700 DEG C; after the reaction is completely finished, discharging from the furnace and refining in a refining furnace; filtering to remove slag, and pouring to obtain the aluminum-silicon-titanium alloy. By adopting the production method for aluminum-silicon-titanium alloy, the application difficulty of two industrial solid wastes namely high-titanium blast furnace slag and pulverized ash can be solved, beneficial elements of aluminum, silicon and the like in the pulverized ash can be comprehensively utilized while the high-titanium blast furnace slag is dug, the method is short in production flow, low in cost and higher in economic additional value, and the slag can also be used as building materials and the like.

Description

technical field [0001] The invention relates to the field of alloy smelting, and more particularly, to a method for producing aluminum-silicon-titanium alloy by using cold high-titanium type blast furnace slag and fly ash as raw materials. Background technique [0002] Titanium has the ability to refine the alloy structure and is a composition of non-ferrous metals and some alloy steels and cast steels. Adding 0.1% to 0.6% of titanium to the alloy can not only deoxidize and purify, but also improve the alloy's performance at room temperature and high temperature. Mechanical strength. Titanium-containing aluminum-silicon alloys have a refined crystal structure and enhanced wear resistance, corrosion resistance and high temperature resistance. Therefore, the development of Al-Si-Ti alloys or the addition of titanium to Al-Si alloys is regarded as a hot technology. [0003] On the other hand, cold high-titanium blast furnace slag and fly ash are two common industrial solid wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C1/10
Inventor 黄家旭张继东杨仰军
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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