CN106086485A - A kind of melting recovery method of titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy - Google Patents
A kind of melting recovery method of titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy Download PDFInfo
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- CN106086485A CN106086485A CN201610500892.0A CN201610500892A CN106086485A CN 106086485 A CN106086485 A CN 106086485A CN 201610500892 A CN201610500892 A CN 201610500892A CN 106086485 A CN106086485 A CN 106086485A
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- titanium alloy
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- defective material
- titanium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
Abstract
The present invention relates to the melting recovery method of a kind of titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy, process including titanium alloy defective material scale, surface, dispensing and prepared by " alloy bag ", prepared by electrode, VAR melting and machining, titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy smelting can be realized reclaim, it is advantageously implemented the circulation efficiency melting flexible, diversified, high of titanium alloy defective material to reclaim, minimizing titanium alloy defective material stock and the occupation of capital；Titanium defective material utilization rate is high: without broken, batch mixing and electrode pressing by titanium alloy defective material, in addition to a small amount of alloy bag, titanium alloy and pure titanium defective material only need to be used as raw material, thus titanium defective material adding proportion is improved to more than 90% by 30%, titanium alloy defective material utilization rate is greatly improved；Production cost is low: by improving titanium defective material utilization rate, production cost is greatly reduced.
Description
Technical field
The present invention relates to titanium material processing technique field, a kind of titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy
Melting recovery method.
Background technology
Titanium alloy has that intensity is high, density is low, corrosion-resistant, without advantages such as magnetic, be widely used in Aero-Space, naval vessel, change
The field such as work and physical culture.Owing to titanium alloy raw material is expensive, and its producing process is complicated, yield rate is low, therefore titanium alloy
Goods cost is high.The most rationally expand a large amount of titanium defective materials produced in application titanium alloy production process, it is achieved profit again is reclaimed in remelting
With, it is to reduce one of titanium alloy product production cost necessary ways.
Prior art mainly by being broken for bits shape, little granular form by titanium alloy defective material, and mixes with titanium sponge, then presses
Make electrode block, then weld, carry out vacuum consumable electrode arc furnace (VAR) remelting and reclaim, it is thus achieved that with titanium alloy defective material with the trade mark
Titan alloy casting ingot, in order to ensure the internal bonding strength of electrode block, general titanium alloy defective material adding proportion is less than 30%.But this kind
Process is normally only applicable to titanium alloy defective material melting and reclaims with trade mark titanium alloy titanium ingot, and titanium alloy defective material adding proportion
Low, there is certain limitation, it is impossible to fully meet variation, low-cost titanium alloy defective material melting remanufacture demand.
Summary of the invention
Normally only it is applicable to titanium alloy defective material melting for above-mentioned existing process reclaim with trade mark titanium alloy titanium ingot,
And titanium alloy defective material adding proportion is low, having the problems such as certain limitation, the present invention provides a kind of titanium alloy defective material transformation of ownership xenogenesis
The melting recovery method of trade mark titanium alloy.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The melting recovery method of a kind of titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy, defines titanium alloy defective material alloy board to be recycled
Number being a, realize transformation of ownership b trade mark titanium alloy smelting in accordance with the following methods and reclaim, it is all mainly that b trade mark titanium alloy should comprise a trade mark
Alloying element, the method comprises the following steps:
Step one: strip shape to be recycled for a trade mark, block or bar-shaped titanium alloy defective material are carried out scale a, it is thus achieved that class or multiclass tool
Having the titanium defective material of similar geometry shape, after scale, titanium alloy defective material size should meet width≤250mm, length≤3000mm；
Step 2: by titanium alloy defective material ball blast pickling or alkali pickling after step one gained scale, removes surface scale, greasy dirt,
And dry, it is thus achieved that clean surface, dry titanium defective material；
Step 3: contain according to a trade mark actual alloying element content of titanium alloy defective material, b trade mark titanium alloy titanium ingot subject alloy element
Amount, interpolation simple substance or intermediate alloy kind and alloying element content, the scaling loss amount of alloying element fusion process, and every electrode
Weight, draws the weight of each dispensing needed for preparing every electrode, and uses following method to prepare alloy bag: take wall thickness 0.2 ~
1.0mm, diameter 10 ~ 40mm, length≤500mm pure titanium thin-walled welding pipe, first flatten and use argon arc welding soldering and sealing by welded tube one end,
It is then charged into graininess intermediate alloy, welded tube is set level, and make intermediate alloy be evenly distributed on welded tube length direction, then will weldering
Pipe flattens, and is also flattened by the welded tube other end subsequently, soldering and sealing, makes intermediate alloy be fixed in welded tube, the simple substance of above interpolation,
Or the intermediate alloy being packaged in welded tube is referred to as alloy bag；
Step 4: by cylindrical electrode to be prepared for curtailment after scale, the titanium alloy with similar cross-section geometry is residual
Material, uses argon arc welding overlap joint or butt welding in spot method to connect so that it is length reaches the length of cylindrical electrode to be prepared, uses same
The method of sample makes lath-shaped and is packaged in the alloy packet length of welded tube form and also reaches the length of cylindrical electrode to be prepared, then
Using donut clamp auxiliary mould to carry out electrode cloth and assembly welding binding, prepare cylindrical electrode, electrode diameter is less than
VAR melting once crucible internal diameter；
Step 5: the titanium alloy defective material electrode prepared is carried out 2 ~ 3 VAR meltings, it is thus achieved that composition is uniform, surface quality is excellent
Good transformation of ownership b trade mark titan alloy casting ingot；
Step 6: titan alloy casting ingot is carried out surface and machines the process that strips off the skin, remove surface defect；Ultrasonic examination, determines rising head
Position, and titanium ingot rising head rejected region is excised.
In described step 4, cylindrical electrode is by lath-shaped or bar-shaped titanium alloy defective material, the titanium welding pipe being packaged with intermediate alloy
And lath-shaped alloy simple substance composition.
In described step 4 inside cylindrical electrode, lath-shaped or bar-shaped titanium alloy defective material with by lath-shaped alloy simple substance and
It is packaged with the uniform closely knit cloth of titanium welding pipe alloy bag of intermediate alloy, and carries out argon arc welding reinforcement of weld at position adjacent one another are,
Electrode outer layer is wrapped up by the lath-shaped titanium alloy defective material of thickness >=4.0mm, welds and add between adjacent slat and with internal electrode
Gu, it is ultimately produced uniform diameter, close structure, overall consutrode that bonding strength is big.
Beneficial effects of the present invention:
The melting recovery method of the titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy that the present invention provides, it is achieved that titanium alloy defective material turns
Xenogenesis trade mark titanium alloy titanium ingot recycling processed, improves titanium alloy defective material adding proportion simultaneously, reduces production cost, for
Expand titanium alloy scraps recycle mode and provide a kind of new thinking, be advantageously implemented titanium alloy defective material flexibly, variation, Gao Liu
Transfer efficient melting is reclaimed.Titanium alloy defective material melting recovery Pd ingot composition meets and is better than GB/T 3620.1 " the titanium or titanium alloy trade mark
And chemical composition " national standard；
The melting recovery method of the titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy that the present invention provides, can realize titanium alloy defective material and turn
Xenogenesis trade mark titanium alloy smelting processed reclaims: the method is simple to operate, and manufacturing enterprise can be according to customer demand, by titanium alloy defective material
Melting is reclaimed and is transformed into the titanium alloy trade mark titanium ingot needed for client, is advantageously implemented the circulation flexible, diversified, high of titanium alloy defective material
Efficiency melting is reclaimed, and reduces titanium alloy defective material stock and the occupation of capital；Titanium defective material utilization rate is high: without being broken by titanium alloy defective material
Broken, batch mixing and electrode pressing, in addition to a small amount of alloy bag, only need to use titanium alloy and pure titanium defective material as raw material, thus by titanium
Defective material adding proportion is improved to more than 90% by 30%, and titanium alloy defective material utilization rate is greatly improved；Production cost is low: by improving
Titanium defective material utilization rate, production cost is greatly reduced.
Accompanying drawing explanation
Fig. 1 electrode structure of the present invention axonometric chart；
Fig. 2 electrode structure of the present invention side view；
Donut clamp frock open mode schematic diagram used by Fig. 3 present invention；
Donut clamp frock closed mode schematic diagram used by Fig. 4 present invention；
Reference: 1, titanium alloy defective material, 2, be packaged with the welded tube alloy bag of intermediate alloy, 3, lath-shaped alloy simple substance alloy
Bag, 4, support, 5, annular fixture, 501, fixing circular arc, 502, rotate circular arc.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further elaborated.
The melting recovery method of a kind of titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy, defines titanium alloy defective material to be recycled and closes
Gold medal number is a, realizes transformation of ownership b trade mark titanium alloy smelting in accordance with the following methods and reclaims, and b trade mark titanium alloy should comprise a trade mark to be owned
Main alloy element, the method comprises the following steps:
Step one: strip shape to be recycled for a trade mark, block or bar-shaped titanium alloy defective material are carried out scale a, it is thus achieved that class or multiclass tool
Having the titanium defective material of similar geometry shape, after scale, titanium alloy defective material size should meet width≤250mm, length≤3000mm；
Step 2: by titanium alloy defective material ball blast pickling or alkali pickling after step one gained scale, removes surface scale, greasy dirt,
And dry, it is thus achieved that clean surface, dry titanium defective material；
Step 3: contain according to a trade mark actual alloying element content of titanium alloy defective material, b trade mark titanium alloy titanium ingot subject alloy element
Amount, interpolation simple substance or intermediate alloy kind and alloying element content, the scaling loss amount of alloying element fusion process, and every electrode
Weight, draws the weight of each dispensing needed for preparing every electrode, and uses following method to prepare alloy bag: take wall thickness 0.2 ~
1.0mm, diameter 10 ~ 40mm, length≤500mm pure titanium thin-walled welding pipe, first flatten and use argon arc welding soldering and sealing by welded tube one end,
It is then charged into graininess intermediate alloy, welded tube is set level, and make intermediate alloy be evenly distributed on welded tube length direction, then will weldering
Pipe flattens, and is also flattened by the welded tube other end subsequently, soldering and sealing, makes intermediate alloy be fixed in welded tube, the simple substance of above interpolation,
Or the intermediate alloy being packaged in welded tube is referred to as alloy bag；In electrode production process, alloy bag is fixedly welded on electrode, real
Now increase alloying element kind or change the purpose of alloying element content.After accounting for due to titanium thin-walled welding pipe pure needed for preparing alloy bag
The continuous mass fraction preparing electrode is minimum, therefore can ignore it to titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy smelting composition
Impact；
Step 4: by cylindrical electrode to be prepared for curtailment after scale, the titanium alloy with similar cross-section geometry is residual
Material, uses argon arc welding overlap joint or butt welding in spot method to connect so that it is length reaches the length of cylindrical electrode to be prepared, uses same
The method of sample makes lath-shaped and is packaged in the alloy packet length of welded tube form and also reaches the length of cylindrical electrode to be prepared, then
Using donut clamp auxiliary mould to carry out electrode cloth and assembly welding binding, prepare cylindrical electrode, electrode diameter is less than
VAR melting once crucible internal diameter；Described cylindrical electrode is by lath-shaped or bar-shaped titanium alloy defective material, the titanium being packaged with intermediate alloy
Welded tube and lath-shaped alloy simple substance composition；Inside described cylindrical electrode, lath-shaped or bar-shaped titanium alloy defective material with by lath-shaped
Alloy simple substance and be packaged with the uniform closely knit cloth of titanium welding pipe alloy bag of intermediate alloy, and carry out argon arc welding at position adjacent one another are
Reinforcement of weld, electrode outer layer by thickness >=4.0mm lath-shaped titanium alloy defective material wrap up, between adjacent slat and with inside electricity
Pole reinforcement of weld, is ultimately produced uniform diameter, close structure, overall consutrode that bonding strength is big；
Step 5: the titanium alloy defective material electrode prepared is carried out 2 ~ 3 VAR meltings, it is thus achieved that composition is uniform, surface quality is excellent
Good transformation of ownership b trade mark titan alloy casting ingot；
Step 6: titan alloy casting ingot is carried out surface and machines the process that strips off the skin, remove surface defect；Ultrasonic examination, determines rising head
Position, and titanium ingot rising head rejected region is excised.
As shown in Figure 3, Figure 4, respectively used by the present invention, donut clamp frock is opened and closed mode schematic diagram,
Described donut clamp frock includes support 4 and is arranged on the multiple equal in magnitude and concentric annular at support 4 top
Fixture 5, annular fixture 5 is made up of the fixing circular arc 501 being arranged on support 4 and rotation circular arc 502, rotates circular arc 502 1
End is rotatably connected with fixing circular arc 501 one end, and the other end can rotate to and fix circular arc 501 form the annulus of Guan Bi；Fig. 1 is warp
Electrode structure schematic diagram after donut clamp frock auxiliary welding resistance, Fig. 2 is through the auxiliary resistance of donut clamp frock
The electrode structure side view of postwelding.
Embodiment 1: as a example by the melting of TA28 titanium alloy defective material transformation of ownership TA17 titanium alloy is reclaimed
1) use shearing machine, Water Cutting method, strip shape, block and bar-shaped TA28 titanium alloy defective material are carried out scale, it is thus achieved that several classes
There is the titanium defective material of close sectional dimension, titanium alloy defective material width≤150mm, length≤2000mm after scale.
2) by ball blast acid washing method, the Impurity removals such as titanium alloy defective material surface scale, greasy dirt is clean, and dry,
Obtain clean surface, dry titanium alloy defective material.
3) the actual alloying element content of TA28 titanium alloy defective material is Ti-2.5Al, i.e. Al content 2.5%, and remaining is Ti element；
TA17 titanium alloy target component is Ti-4.0Al-2.0V, i.e. Al content 4.0%, V content 2.0%, and remaining is Ti element；By adding
Add pure titanium defective material lath simple substance, Al-50.0V intermediate alloy (V content 50%, remaining is Al element), adjust titanium alloy defective material and become
Point, it is achieved the purpose of TA28 titanium alloy defective material transformation of ownership TA17 titanium alloy；TA28 titanium alloy defective material uses present invention process method, warp
Three VAR meltings obtain TA17 titanium ingot, estimate Al melting loss of elements 0.2%, and remaining alloying element scaling loss is negligible；Titanium alloy
Cylindrical electrode prepared by defective material a size of 280*2000mm, every electrode weight is 440kg.
According to above-mentioned condition, can calculate and prepare every electrode and need dispensing TA28 titanium alloy defective material 386.43kg, pure titanium
Defective material lath simple substance 36.01kg, Al-50.0V graininess intermediate alloy 17.56kg.Pure titanium defective material lath simple substance thickness 8mm, width
Degree 50mm；Al-50.0V intermediate alloy is uniformly sub-packed in 35 wall thickness 0.5mm, diameter 24mm, length 400mm welded tube, first
First argon arc welding soldering and sealing is flattened and used in welded tube one end, after putting into intermediate alloy, welded tube is kept flat, and make intermediate alloy at welded tube
It is evenly distributed on length direction, then welded tube is flattened, subsequently the welded tube other end is also flattened, soldering and sealing, make intermediate alloy at welded tube
Inside fixed.
4) pure titanium welding wire is used to use curtailment 2000mm after scale, the TA28 titanium defective material with close sectional dimension
Argon arc welding method is attached, and makes length reach 2000mm.Same method is used by pure titanium defective material lath simple substance and to be packaged in
" alloy bag " length of welded tube form extends to 2000mm respectively.Use circular concentric fixture auxiliary mould carry out electrode cloth and
Assembly welding bundlees, and prepares in electrode process, by pure titanium defective material lath simple substance and be packaged with the titanium welding pipe " alloy bag " of intermediate alloy with
The uniform closely knit cloth of TA28 titanium alloy defective material, and argon arc welding reinforcement of weld is carried out at position adjacent one another are, electrode outer layer is by thickness
For 6.0mm TA28 titanium alloy defective material lath wrap up, between adjacent slat and with internal electrode reinforcement of weld, finally prepared
Becoming diameter 280mm, length 2000mm electrode, electrode has good connection intensity, uniform diameter, close structure.
Above-mentioned same method is used to prepare 6 electrodes.
5) electrode prepared is carried out 3 VAR meltings.1st time, 2 times, 3 VAR melting kettle internal diameters are respectively
380mm、480mm、580mm.Through three VAR meltings, it is thus achieved that composition is uniform, the TA17 titan alloy casting ingot of excellent surface quality.
6) TA17 titan alloy casting ingot is carried out surface and machines the process that strips off the skin, remove surface defect；Ultrasonic examination, determines and emits
Mouth position, and use sawing machine to be excised by titanium ingot rising head rejected region；Then ingot casting is carried out head, in, tail sampling, chemically examine composition.
The final TA17 titanium alloy titanium ingot composition obtained is qualified, and as shown in table 1, and each element component content meets and is better than
GB.
Table 1 TA17 titan alloy casting ingot composition measured value
Claims (3)
1. a melting recovery method for titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy, defines titanium alloy defective material alloy to be recycled
The trade mark is a, realizes transformation of ownership b trade mark titanium alloy smelting in accordance with the following methods and reclaims, and b trade mark titanium alloy should comprise all masters of a trade mark
Want alloying element, it is characterised in that the method comprises the following steps:
Step one: strip shape to be recycled for a trade mark, block or bar-shaped titanium alloy defective material are carried out scale a, it is thus achieved that class or multiclass tool
Having the titanium defective material of similar geometry shape, after scale, titanium alloy defective material size should meet width≤250mm, length≤3000mm；
Step 2: by titanium alloy defective material ball blast pickling or alkali pickling after step one gained scale, removes surface scale, greasy dirt,
And dry, it is thus achieved that clean surface, dry titanium defective material；
Step 3: contain according to a trade mark actual alloying element content of titanium alloy defective material, b trade mark titanium alloy titanium ingot subject alloy element
Amount, interpolation simple substance or intermediate alloy kind and alloying element content, the scaling loss amount of alloying element fusion process, and every electrode
Weight, draws the weight of each dispensing needed for preparing every electrode, and uses following method to prepare alloy bag: take wall thickness 0.2 ~
1.0mm, diameter 10 ~ 40mm, length≤500mm pure titanium thin-walled welding pipe, first flatten and use argon arc welding soldering and sealing by welded tube one end,
It is then charged into graininess intermediate alloy, welded tube is set level, and make intermediate alloy be evenly distributed on welded tube length direction, then will weldering
Pipe flattens, and is also flattened by the welded tube other end subsequently, soldering and sealing, makes intermediate alloy be fixed in welded tube, the simple substance of above interpolation,
Or the intermediate alloy being packaged in welded tube is referred to as alloy bag；
Step 4: by cylindrical electrode to be prepared for curtailment after scale, the titanium alloy with similar cross-section geometry is residual
Material, uses argon arc welding overlap joint or butt welding in spot method to connect so that it is length reaches the length of cylindrical electrode to be prepared, uses same
The method of sample makes lath-shaped and is packaged in the alloy packet length of welded tube form and also reaches the length of cylindrical electrode to be prepared, then
Using donut clamp auxiliary mould to carry out electrode cloth and assembly welding binding, prepare cylindrical electrode, electrode diameter is less than
VAR melting once crucible internal diameter；
Step 5: the titanium alloy defective material electrode prepared is carried out 2 ~ 3 VAR meltings, it is thus achieved that composition is uniform, surface quality is excellent
Good transformation of ownership b trade mark titan alloy casting ingot；
Step 6: titan alloy casting ingot is carried out surface and machines the process that strips off the skin, remove surface defect；Ultrasonic examination, determines rising head
Position, and titanium ingot rising head rejected region is excised.
2. the melting recovery method of titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy as claimed in claim 1, it is characterised in that:
In described step 4, cylindrical electrode is by lath-shaped or bar-shaped titanium alloy defective material, the titanium welding pipe being packaged with intermediate alloy and lath-shaped
Alloy simple substance forms.
3. the melting recovery method of titanium alloy defective material transformation of ownership xenogenesis trade mark titanium alloy as claimed in claim 1, it is characterised in that:
In described step 4 inside cylindrical electrode, lath-shaped or bar-shaped titanium alloy defective material with by lath-shaped alloy simple substance and be packaged with
Between the uniform closely knit cloth of titanium welding pipe alloy bag of alloy, and carry out argon arc welding reinforcement of weld, electrode outer layer at position adjacent one another are
By thickness >=4.0mm lath-shaped titanium alloy defective material wrap up, between adjacent slat and with internal electrode reinforcement of weld, finally make
Complete uniform diameter, close structure, overall consutrode that bonding strength is big.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107502751A (en) * | 2017-07-17 | 2017-12-22 | 洛阳双瑞精铸钛业有限公司 | A kind of method for obtaining TA2 slab ingots with bits shape and the pure titanium defective material melting recovery of tabular |
| CN109706332A (en) * | 2018-12-19 | 2019-05-03 | 西部超导材料科技股份有限公司 | A method of improving titan alloy casting ingot surface quality |
| CN115821066A (en) * | 2022-11-28 | 2023-03-21 | 宁夏中色金航钛业有限公司 | Method for recovering and smelting titanium and titanium alloy blocky production waste |
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| CN202164343U (en) * | 2011-06-14 | 2012-03-14 | 郝桂生 | Electrode device used for waste titanium recycling and remelting process |
| CN105063367A (en) * | 2015-07-23 | 2015-11-18 | 宝钛集团有限公司 | Preparation method for smelting electrodes |
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| CN101413061A (en) * | 2008-12-05 | 2009-04-22 | 西北有色金属研究院 | Electron beam cold hearth melting recovery method for titanium and titanium alloy chip scrap |
| CN102061408A (en) * | 2011-01-26 | 2011-05-18 | 西北有色金属研究院 | Method for preparing low-cost titanium alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107502751A (en) * | 2017-07-17 | 2017-12-22 | 洛阳双瑞精铸钛业有限公司 | A kind of method for obtaining TA2 slab ingots with bits shape and the pure titanium defective material melting recovery of tabular |
| CN107502751B (en) * | 2017-07-17 | 2019-03-01 | 洛阳双瑞精铸钛业有限公司 | A method of TA2 slab ingot is obtained with bits shape and the pure titanium defective material melting recycling of plate |
| CN109706332A (en) * | 2018-12-19 | 2019-05-03 | 西部超导材料科技股份有限公司 | A method of improving titan alloy casting ingot surface quality |
| CN109706332B (en) * | 2018-12-19 | 2020-09-11 | 西部超导材料科技股份有限公司 | Method for improving surface quality of titanium alloy ingot |
| CN115821066A (en) * | 2022-11-28 | 2023-03-21 | 宁夏中色金航钛业有限公司 | Method for recovering and smelting titanium and titanium alloy blocky production waste |
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