CN109266863A - A kind of high purity titanium ingot method of purification - Google Patents
A kind of high purity titanium ingot method of purification Download PDFInfo
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- CN109266863A CN109266863A CN201811424345.4A CN201811424345A CN109266863A CN 109266863 A CN109266863 A CN 109266863A CN 201811424345 A CN201811424345 A CN 201811424345A CN 109266863 A CN109266863 A CN 109266863A
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- electron
- titanium
- smelting
- burner hearth
- titanium ingot
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/22—Remelting metals with heating by wave energy or particle radiation
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1295—Refining, melting, remelting, working up of titanium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The high purity titanium ingot method of purification including stock, shove charge, electron-beam smelting that the invention discloses a kind of, using electron beam furnace melting, heating when Du≤2.0 electron beam furnace burner hearth Zhen Kong × 10-2pa is kept to start electron-beam smelting, smelting temperature is controlled at >=2350 DEG C, speed of melting is controlled in≤25kg/h, sufficiently melt titanium item, it comes out of the stove after the titanium ingot formed after electron-beam smelting is cooling in burner hearth, effectively reduce the impurity contents such as iron, silicon, carbon, to obtain high-purity titanium ingot, high pure metal titanium pore-free, nothing are mingled with.
Description
Technical field
The invention belongs to purification of metals processing technique fields, and in particular to a kind of high purity titanium ingot method of purification.
Background technique
With booming, the demand and day sharp increase to high purity titanium of electronics industry and aerospace industry.It is so-called high-purity
Titanium refers to the titanium that impurity content is lower, purity is 99.99%, referred to as ultra-pure titanium of the purity 99.995% or more.Due to
The specific use of microelectronic industry needs the interstitial impurities element such as oxygen as low as possible, because oxygen content increases, will use high purity titanium
The integrated circuit resistor of preparation significantly increases, and route becomes fragile, is hardened, and short circuit, open circuit occurs, leads to ic failure, scrap.
In the preparation process flow of high purity titanium, the possible oxygenation of each link is required to stringent process control condition.It is high-purity at present
The preparation method of titanium has very much, and traditional iodide process, fused salt electrolysis process, electron beam are concise, E-beam area refining is still industry
The main production process of high purity titanium.It prepares in the various methods of high purity titanium, the ability for removing impurity element is different, electron beam
Molten method product of practicing is in ingot casting, and the method is good except elements effects such as aluminium, zinc, manganese, but except interstitial elements effects such as heavy metals and oxygen such as iron
Difference；Iodide process, fused salt electrolysis process product are in dendritic crystalline, and the method is good except iron and oxygen effect, and other methods are groped also in laboratory
It is stage, still immature.
With semiconductor devices heavy metal, alkali metal, radioactive element, interstitial impurity content are proposed it is higher and higher
It is required that development and application combination process is economic method, it rolls into one the advantages of a variety of single purifying techniques, and overcomes each
The deficiency of single purifying technique, but combination process does not change inherently.It is producing in practice, fused salt electrolysis process adds
The molten method of practicing of electron beam is typical process integration.Fused salt electrolysis process applies the impurity element principle different with titanium potential difference and removes
Molten iron, titanium and the oxygen element practicing method difficulty and removing of electron beam, resulting dendritic crystalline high purity titanium, up to 99.995% or more, oxygen contains purity
Amount is lower than 70ppm, but dendritic crystalline high purity titanium cannot be directly applied in electronics industry, it is also necessary to removed with the molten method of practicing of electron beam
The ingot casting of corresponding size is cast while the elements such as aluminium, zinc, manganese.The molten method of practicing of electron beam applies impurity element and titanium saturated vapor
Discrepant principle is pressed to remove impurity element.
Summary of the invention
The present invention solves the deficiencies in the prior art, provides a kind of high purity titanium ingot including stock, shove charge, electron-beam smelting
Method of purification effectively reduces the impurity contents such as iron, silicon, carbon, to obtain high-purity titanium ingot.
The technical scheme adopted by the invention is that: a kind of high purity titanium ingot method of purification, comprising the following steps:
Step 1: stock
The titanium leftover pieces for selecting surface quality good, cut into 50~100mm wide titanium item with plate shearing machine, and then pickling removes table
Face impurity, selected titanium leftover pieces purity >=99.8%；
Step 2: shove charge
Step 1 is tied up into material through the titanium item of over cleaning and puts into electron beam furnace, clearing furnace before shove charge；
Step 3: electron-beam smelting
Using electron beam furnace melting, Du≤2.0 × 10 electron beam furnace burner hearth Zhen Kong are kept-2Heating starts electronics when pa
Beam melting, at >=2350 DEG C, speed of melting control sufficiently melts titanium item, electron-beam smelting in≤25kg/h for smelting temperature control
It comes out of the stove after the titanium ingot formed afterwards is cooling in burner hearth.
Preferably, the titanium ingot formed after the electron-beam smelting in burner hearth cooling time be 12~for 24 hours.
It is furthermore preferred that further including secondary beam melting, Du≤2.0 electron beam furnace burner hearth Zhen Kong × 10-2pa is kept
Shi Shengwen starts electron-beam smelting, and at >=2250 DEG C, speed of melting is controlled in≤20kg/h, electron-beam smelting for smelting temperature control
It comes out of the stove after the titanium ingot formed afterwards is cooling in burner hearth.
Compared to the prior art, the invention has the benefit that a kind of height including stock, shove charge, electron-beam smelting
Pure titanium ingot method of purification keeps heating up when Du≤2.0 electron beam furnace burner hearth Zhen Kong × 10-2pa using electron beam furnace melting
Start electron-beam smelting, at >=2350 DEG C, speed of melting control sufficiently melts titanium item, electricity in≤25kg/h for smelting temperature control
It comes out of the stove after the titanium ingot formed after beamlet melting is cooling in burner hearth, effectively reduces the impurity contents such as iron, silicon, carbon, thus
High-purity titanium ingot, high pure metal titanium pore-free are obtained, nothing is mingled with.
Specific embodiment
With regard to specific embodiment, the present invention is described in detail below.
A kind of high purity titanium ingot method of purification, comprising the following steps:
Step 1: stock
The titanium leftover pieces for selecting surface quality good, cut into 80mm wide titanium item with plate shearing machine, and then it is miscellaneous to remove surface for pickling
Matter, selected titanium leftover pieces purity >=99.8%；
Step 2: shove charge
Step 1 is tied up into material through the titanium item of over cleaning and puts into electron beam furnace, clearing furnace before shove charge；
Step 3: electron-beam smelting
Using electron beam furnace melting, heating when electron beam furnace burner hearth 2.0 × 10-2pa of vacuum degree is kept to start electronics
Beam melting, at 2450 DEG C, speed of melting control sufficiently melts titanium item, shape after electron-beam smelting in 22kg/h for smelting temperature control
At titanium ingot in burner hearth it is cooling after come out of the stove.
The titanium ingot formed after the electron-beam smelting in burner hearth cooling time be 12h.
Further include secondary beam melting, heating when electron beam furnace burner hearth 2.0 × 10-2pa of vacuum degree is kept to start
Electron-beam smelting, at 2450 DEG C, the titanium ingot that speed of melting control is formed after 18kg/h, electron-beam smelting exists for smelting temperature control
It comes out of the stove after cooling in burner hearth.
Using a kind of high purity titanium ingot method of purification including stock, shove charge, electron-beam smelting of the invention, electron beam is kept
Heating starts electron-beam smelting when smelting furnace burner hearth very sky degree≤2.0 × 10-2pa, and smelting temperature control is at >=2350 DEG C, melting
Speed control sufficiently melts titanium item, comes out of the stove after the titanium ingot formed after electron-beam smelting is cooling in burner hearth, effectively in≤25kg/h
The impurity contents such as iron, silicon, carbon are reduced, to obtain high-purity titanium ingot, high pure metal titanium pore-free, nothing are mingled with.
Above-described embodiment, only presently preferred embodiments of the present invention, the practical range being not intended to limit the invention, thus it is all with
The equivalent variations that content described in the claims in the present invention is done should all be included within scope of the invention as claimed.
Claims (3)
1. a kind of high purity titanium ingot method of purification, which comprises the following steps:
Step 1: stock
The titanium leftover pieces for selecting surface quality good, cut into 50~100mm wide titanium item with plate shearing machine, and then it is miscellaneous to remove surface for pickling
Matter, selected titanium leftover pieces purity >=99.8%；
Step 2: shove charge
Step 1 is tied up into material through the titanium item of over cleaning and puts into electron beam furnace, clearing furnace before shove charge；
Step 3: electron-beam smelting
Using electron beam furnace melting, Du≤2.0 × 10 electron beam furnace burner hearth Zhen Kong are kept-2It is molten to start electron beam for heating when pa
Refining, at >=2350 DEG C, speed of melting control sufficiently melts titanium item, shape after electron-beam smelting in≤25kg/h for smelting temperature control
At titanium ingot in burner hearth it is cooling after come out of the stove.
2. a kind of high purity titanium ingot method of purification as described in claim 1, which is characterized in that formed after the electron-beam smelting
Titanium ingot in burner hearth cooling time be 12~for 24 hours.
3. a kind of high purity titanium ingot method of purification as claimed in claim 2, which is characterized in that it further include secondary beam melting,
Keep Du≤2.0 electron beam furnace burner hearth Zhen Kong × 10-2pa when heating start electron-beam smelting, smelting temperature control >=
It 2250 DEG C, comes out of the stove after the titanium ingot that speed of melting control is formed after≤20kg/h, electron-beam smelting is cooling in burner hearth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811424345.4A CN109266863A (en) | 2018-11-27 | 2018-11-27 | A kind of high purity titanium ingot method of purification |
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| CN201811424345.4A CN109266863A (en) | 2018-11-27 | 2018-11-27 | A kind of high purity titanium ingot method of purification |
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| CN109266863A true CN109266863A (en) | 2019-01-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093515A (en) * | 2019-04-16 | 2019-08-06 | 北京科技大学 | A method of the brilliant directly distillation-melting of folder salt titanium prepares hypoxemia high purity titanium ingot |
| CN112504906A (en) * | 2020-11-12 | 2021-03-16 | 昆山全亚冠环保科技有限公司 | Analysis and quantification method for total carbon in gold material |
-
2018
- 2018-11-27 CN CN201811424345.4A patent/CN109266863A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093515A (en) * | 2019-04-16 | 2019-08-06 | 北京科技大学 | A method of the brilliant directly distillation-melting of folder salt titanium prepares hypoxemia high purity titanium ingot |
| CN112504906A (en) * | 2020-11-12 | 2021-03-16 | 昆山全亚冠环保科技有限公司 | Analysis and quantification method for total carbon in gold material |
| CN112504906B (en) * | 2020-11-12 | 2022-06-14 | 光洋新材料科技(昆山)有限公司 | Analysis and quantification method for total carbon in gold material |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190125 |
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| WD01 | Invention patent application deemed withdrawn after publication |