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A method for obtaining ta2 slabs by smelting and recovering shavings and plate-like pure titanium residues

A technology of residual material and pure titanium, applied in the direction of improving process efficiency, etc., can solve the problems of difficult removal of high and low density inclusions of titanium residual material, difficult quality assurance, and high recovery cost, achieving low cost, short production process, and component performance. excellent effect

Active Publication Date: 2019-03-01
LUOYANG SUNRUI TI PRECISION CASTING
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Problems solved by technology

[0005] In view of the high cost of smelting and recycling titanium shavings in the above-mentioned prior art, and the high and low density inclusions of titanium residues are not easy to remove, and the quality is difficult to guarantee. ingot method

Method used

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  • A method for obtaining ta2 slabs by smelting and recovering shavings and plate-like pure titanium residues
  • A method for obtaining ta2 slabs by smelting and recovering shavings and plate-like pure titanium residues
  • A method for obtaining ta2 slabs by smelting and recovering shavings and plate-like pure titanium residues

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Embodiment Construction

[0031] The present invention will be further elaborated below in combination with specific embodiments.

[0032] The invention adopts the smelting and recycling of chip-like and plate-like pure titanium residues, and the goal is to obtain 190*1055*5700mm flat ingots.

[0033] Step 1, surface treatment: cleaning, drying and magnetic separation of pure titanium shavings and titanium residues to remove surface oil and iron filings impurities to obtain clean and dry titanium shavings; use shot blasting pickling method to clean the plate Remove impurities such as oxide scales and oil stains on the surface of pure titanium residues and dry them to make the surface clean and dry;

[0034] Step 2, ingredient calculation: use chemical analysis method to detect and calibrate the composition of chip-shaped and plate-shaped pure titanium residues, and the results are shown in Table 1. According to the strength requirements of the plate, the target [O]% of smelting and recycling TA2 slabs...

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Abstract

The invention relates to a method for obtaining TA2 slabs by smelting and recovering shavings and plate-like pure titanium residues, which can significantly increase the addition ratio of shavings-like titanium residues to 95%, without adding sponge titanium, and using shavings and plates 100% pure titanium residue can be added to smelt and recover, and TA2 slabs with qualified components can be produced; the invention provides a method for ingredient distribution, and the composition of smelting and recovered TA2 slabs is designed so that the slab components not only It meets the standard requirements of GB / T 3620.1 "Titanium and Titanium Alloy Grades and Chemical Composition". At the same time, the mechanical properties of the titanium plate produced meet and exceed the standard requirements of GB / T 3621 "Titanium and Titanium Alloy Plates", and the composition performance is excellent.

Description

technical field [0001] The invention relates to the technical field of titanium material processing, in particular to a method for obtaining TA2 slabs by smelting and recovering chip-like and plate-like pure titanium residues. Background technique [0002] Industrial pure titanium is mainly TA1 and TA2 grades, which have excellent corrosion resistance and welding performance, and are easy to process and shape. They are widely used in petroleum, chemical industry, metallurgy, electric power, shipbuilding, environmental protection and other fields. During the cutting process of pure titanium ingots, bars, plates, forgings and parts, as many as 5-80% of titanium residues are produced, mostly in the form of chips and plates. How to achieve The low-cost recovery of these titanium residues is of great significance to reduce the cost of titanium materials. [0003] TA1 brand pure titanium requires low content of impurity elements such as N and O, and high purity of smelting raw ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B9/22C22B7/00C22B34/12
CPCC22B7/001C22B9/228C22B34/1218C22B34/1295Y02P10/20
Inventor 李渤渤王非刘如斌裴腾朱俊杰刘茵琪
Owner LUOYANG SUNRUI TI PRECISION CASTING
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