Method for obtaining TA2 slab ingot from chip-shaped and plate-shaped pure-titanium residual materials through smelting and recycling

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

Active Publication Date: 2017-12-22
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 an

Method used

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  • Method for obtaining TA2 slab ingot from chip-shaped and plate-shaped pure-titanium residual materials through smelting and recycling
  • Method for obtaining TA2 slab ingot from chip-shaped and plate-shaped pure-titanium residual materials through smelting and recycling
  • Method for obtaining TA2 slab ingot from chip-shaped and plate-shaped pure-titanium residual materials through smelting and recycling

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[0031] The present invention will be further explained below in conjunction with specific embodiments.

[0032] The invention is used to smelt and recover the scrap and plate-shaped pure titanium residues, and the goal is to obtain 190*1055*5700mm slabs.

[0033] Step 1, surface treatment: clean the pure titanium scrap-like titanium residue, dry at 100°C and magnetic separation, remove surface oil and iron filings impurities, and obtain clean and dry titanium scraps; use shot blasting pickling method to clean the board The surface oxide scale, oil stain and other impurities on the surface of pure titanium residue are removed and dried to make the surface clean and dry;

[0034] Step two, calculation of ingredients: use chemical analysis to detect and calibrate the composition of pure titanium residues in the form of chips and plates. The results are shown in Table 1. According to the requirements of sheet strength, the target [O]% of TA2 slab ingots is selected to be 0.26%, and the ...

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Abstract

The invention discloses a method for obtaining a TA2 slab ingot from chip-shaped and plate-shaped pure-titanium residual materials through smelting and recycling. The adding proportion of the chip-shaped titanium residual materials can be obviously improved, in addition, sponge titanium does not need to be added, 100% pure-titanium residual material adding, smelting and recycling can be achieved through the chip-shaped and plate-shaped pure-titanium residual materials, and the TA2 slab ingot with qualified components is produced. A component compounding method is provided, the components of the smelted and recycled TA2 slab ingot are designed, the components of the slab ingot meet the standard requirements of GB/T 3620.1 Titanium and Titanium alloy Mark and Chemical Component, meanwhile, the mechanical performance of a titanium plate produced through the method meets and is superior to the standard requirements of GB/T 3621 Titanium and Titanium Alloy Plate, and component performance is good.

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...

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Application Information

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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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