CN102206747B - Device and process for manufacturing blank by recovering titanium scraps on basis of impact method - Google Patents
Device and process for manufacturing blank by recovering titanium scraps on basis of impact method Download PDFInfo
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- CN102206747B CN102206747B CN2011101074795A CN201110107479A CN102206747B CN 102206747 B CN102206747 B CN 102206747B CN 2011101074795 A CN2011101074795 A CN 2011101074795A CN 201110107479 A CN201110107479 A CN 201110107479A CN 102206747 B CN102206747 B CN 102206747B
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Abstract
The invention relates to a device and process for manufacturing a blank by recovering titanium scraps on the basis of an impact method, belonging to the technical field of metal recovery. The device comprises a base, an anvil, a punch head, a control chamber, a combustion chamber and tensile columns, wherein the anvil is fixedly arranged on the base and fixedly connected with the combustion chamber through four tensile columns; a sealing cavity is formed by the combustion chamber, the tail end of the punch head and the anvil; both ends of the four tensile columns are respectively fixedly connected with the base and the combustion chamber; the control chamber is positioned on the head end of the combustion chamber; and the combustion chamber is internally provided with a spark plug, an air inlet, an air outlet and a natural gas inlet, wherein the spark plug is connected with a switch. The device and the process disclosed by the invention are used for manufacturing various metal scraps into the gobbets through impact, and the strength and the density of the gobbets actually manufactured from various batched titanium alloy scraps are greatly improved.
Description
Technical field
What the present invention relates to is a kind of device and method of metal recovery technical field, specifically a kind of recovery titanium bits blanking device and technique thereof based on ballistic method.
Background technology
Modern aeronautical and space technology proposes higher requirement.At first improve the speed of aircraft and reduce its quality, the every reduction of aircraft and engine quality 1kg, its cost of use can be saved 220～440 dollars usually.Therefore, Designerss adopt the material that improves physical and mechanical property rather than improve price.Speak of problem of materials, special concern be titanium and alloy thereof.Fan blade on the aircraft, compressor blade, dish, axle, casing, skeleton, covering, fuselage bulkhead and landing gear mostly adopt the titanium alloy manufacturing.Aircarrier aircraft is also in rising trend with the titanium amount, as from first-generation Boeing 707 usefulness titanium amounts in 1958 only be 0.3% be increased to 1994 the 5th generation Boeing 777 11%, increased by 35 times with the titanium amount! U.S. Military Aircraft on average is about 28.6% with the titanium ratio, and the 4th generation of the U.S., new opportunity of combat F-22 was 41% then with the titanium amount, and structure reaches 36t with titanium.France's phantom 2000 aircrafts then are 23% with the titanium amount, and Russian Cy-27CK is 18%.China destroys-8 opportunity of combat fuselages and reaches 3.97% with the titanium amount, destroys-10, destroys-11 and used more the titanium material
Simultaneously, high integrity is one of characteristics of aeronautic structure part, must guarantee to improve strength property.Usually the fabulous technique of these parts---the closely knit blank of forging or stamped carries out milling or turning processing.Titanium work in-process that must mechanical workout after the forging and pressing need to be removed the α that oozes oxygen-layer.
Because mechanical workout forms a large amount of scrap metals, 80% of these scrap metals do not obtain the repetition processing and utilization (according to some data, be used for titanium bits that enterprise smelts be no more than ingot casting weight 15%).The major cause that restricts its utilization is that the high-quality method research of recycling smear metal is inadequate.In today of energy-saving and emission-reduction, have to study the recycling of titanium bits.
The not enough 1g/CM of the smear metal density of again smelting
3, can obtain standard compliant agglomerate in density and intensity, as melting titanium ingot and secondary titanium.In addition, the agglomerate bits are accomplished minimal losses, reduce and stack local and the transportation loss.
Be used for the famous agglomerate static method (with the dynamic (dynamical) method under the low speed distortion) of black and non-ferrous metal smear metal, can not be successfully used to the titanium alloy smear metal in such equipment, this is because the physical-chemical performance of titanium alloy makes so.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of recovery titanium bits blanking device and technique thereof based on ballistic method is provided, be used for various scrap metals and make agglomerate with impacting, comprise that in fact intensity and the density of considering the agglomerate of making to be worth doing by various batch titanium alloys are greatly improved.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of recovery titanium bits blanking device based on ballistic method, comprise: base, anvil, drift, watch-keeping cubicle, combustion chamber and pulling force post, wherein: anvil is fixedly installed on the base and by four pulling force posts and is fixedly connected with the combustion chamber, the end of combustion chamber, drift and anvil consist of annular seal space, the two ends of four pulling force posts are fixedly connected with the combustion chamber with base respectively, the watch-keeping cubicle is positioned at the head end of combustion chamber, is provided with the sparking plug, air air inlet/outlet and the Sweet natural gas inlet mouth that link to each other with the watch-keeping cubicle in the combustion chamber.
Described drift is the cylindrical structural that 40CrMoAl makes, and its heat treatment hardness is 36～40HRC, and the two ends of this drift link to each other with piston and anvil in the combustion chamber respectively,
Described anvil is that high speed steel W18Cr4V is made, and its hardness is 52～56HRC.
Be provided with pilot circuit in the described watch-keeping cubicle, this pilot circuit sends to top, combustion chamber sparking plug, air air inlet/outlet and Sweet natural gas inlet mouth and starts out code.
Described pulling force post is the cylindrical structural that 40CrMoAl makes, and its heat treatment hardness is 36～40HRC.
Described anvil is provided with the sensor that links to each other with the watch-keeping cubicle, and this sensor gathers the startup finishing control that is subjected to the each impact process of force signal conduct on anvil surface.
The titanium bits that the present invention relates to said apparatus reclaim technique, may further comprise the steps;
1) titanium metal is considered to be worth doing between the anvil and drift that places in the annular seal space, in the combustion chamber, supply with the Sweet natural gas air mixture, then adopt spark ignitor Sweet natural gas and air mixture;
The loading level of described titanium metal bits is about 2kg/ time.
The volume ratio that contains the effective constituent Sweet natural gas in the described Sweet natural gas air mixture is 15～20%, and remaining is air.
2) start sparking plug, the mixed gas of ignition combustion chamber, moment promotes to impact to the anvil direction with the speed of 30～100m/s with the drift of piston, and the kinetic energy of this drift makes the titanium metal bits be deformed into the titanium metal blank; Sensor on the anvil gathers when being subject to impacting and is subjected to force signal and feeds back to switch, and the prompting impact process finishes.
Described impact number of times is 1-3 time.
Description of drawings
Fig. 1 is structural representation of the present invention;
Among the figure: 1 base, 2 anvils, 3 drifts, 4 watch-keeping cubicle, 5 combustion chambers, 6 pulling force posts, 7 containers.
Embodiment
The below elaborates to embodiments of the invention, and the present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figure 1, the present embodiment comprises: base 1, anvil 2, drift 3, watch-keeping cubicle 4, combustion chamber 5 and pulling force post 6, wherein: anvil 2 is fixedly installed on the base 1 and by four pulling force posts 6 and is fixedly connected with combustion chamber 5, one end of combustion chamber 5, drift 3 is fixed upper anvil piece also and anvil 2 consists of annular seal spaces 7, the other end is fastening with the piston that is operated in the combustion chamber, the two ends of four pulling force posts 6 are fixedly connected with combustion chamber 5 with base 1 respectively, and watch-keeping cubicle 4 is positioned at the head end of combustion chamber 5.
The working process of device is as follows: by watch-keeping cubicle 4, supply with Sweet natural gas air mixture, spark ignitor mixture in combustion chamber 5., the energy of combustion mixt reaches maximization in the cylinder of this moment.Drift with piston accelerates to 30～100m/s.Large kinetic energy like this like this makes the chip deformation that is preset in the container 7.
Agglomerate is with the die cavity internal strain in the container of anvil 2.By means of the hydro-cylinder (not shown) that is installed on the brandreth, container 7 promotes lower quick washing titanium bits by drift-piston own, so, under severe impact, form agglomerate.After drift-piston turns back to the original position, move behind the container.Four pulling force posts 6 are housed form closed frame and born, absorbed unnecessary energy with large base 1, therefore, this device needn't arrange large basis.
The high pressure of burning mixture body and drift high speed piston degree have reduced quality and the contour dimension of device.160kj device quality only has 3t, and contour dimension only has 0.5 * 0.6 * 4.2m.
In device, done batch examination by the agglomerate that the bits such as industrially pure titanium, titanium alloy T A7, TC6 are made.The agglomerate diameter
Quality 1.8～2.2kg, density---3.5～4.25g/m
3All agglomerates all have high mechanical strength.
Emphasize, pre-prepd bits will be crushed to grade 50～70mm.Bits do not heat, in any case can not be with the bits that detersive power washing composition class article arranged or be bonded together.Temperature in forming process in the bulk bits is difficult to significant rising.
Test-results shows, the necessary unit energy of agglomerate is by the energy and clumps quality ratio that consume, in order to meet the requirements of density index, unit energy average out to 55～85kj/kg, its value is relevant with the situation of the trade mark of titanium alloy and bits, and with this understanding, unit pressure is 450～550MPa.
1. smelting test
For the quality of checking titanium bits obtains impact method and feasibility, from the standard ingot casting, take out the titanium bits and in vacuum induction furnace smelting test, agglomerate accounts for total mass 50%.
Provide after the starting materials of agglomerate is machined by alloy TC6 (GB/T3620.1-1994) titanium ingot, do not use liquid lubrication-refrigerant during mechanical workout.Smear metal is crushed to granularity 50～60mm, and tackiness agent is not adopted in heating.The average quality 2kg/ piece of shaping titanium piece, density---3.5～3.8g/cm
3
Table 1TC6 ingot casting chemical composition
Mechanical property after the sample that table 2TC6 ingot casting takes out is forged
Ingot casting is smelted according to the technical requirements of titanium alloy remelting process.Smelt for the first time and use consumable electrode in the ZHT-5T vacuum consumable electrode arc furnace, this electrode is made by the die continuous squeezing method by titanium sponge, quality 250kg.Make electrode after the composition by corresponding calculating furnace charge compound, the 250kg agglomerate is furnace charge as a supplement.Huo De Ingot footpath after for the first time melting
Electric current 11.5～12kA, voltage 38～40V, ingot quality 500kg, diameter are still carried out in for the second time melting in the ZHT-5T vacuum consumable electrode arc furnace
During beginning, the residual pressure in the stove is 93Pa approximately.Melting continues 1h45min.Simultaneously, between smelting period, do not observe any deviation.
Mechanical workout Hou De Ingot footpath---
Long---1030mm.
Mechanical property and chemical composition are according to batch product ingot technical qualification check.In order to analyze the chemical composition of ingot casting, from ingot casting, carefully select 3 zones (top, middle part, bottom) taking-up titanium bits.Be shown in table 1. by TC6 test ingot casting chemical composition
The mechanical property of ingot casting is determined according to the technique sample.Sample is taken as cubical size 40 * 40 * 40mm, cuts out from ingot casting cast gate template, is swaged into subsequently 14 * 14mm rod (table 2) under 1000 ± 20 ℃ of temperature.Experimental data is listed in table 2.
Claims (9)
1. the recovery titanium based on ballistic method is considered blanking device to be worth doing, it is characterized in that, comprise: base, anvil, drift, watch-keeping cubicle, combustion chamber and pulling force post, wherein: anvil is fixedly installed on the base and by four pulling force posts and is fixedly connected with the combustion chamber, the end of combustion chamber, drift and anvil consist of annular seal space, the two ends of four pulling force posts are fixedly connected with the combustion chamber with base respectively, the watch-keeping cubicle is positioned at the head end of drift, is provided with the sparking plug, air air inlet/outlet and the Sweet natural gas inlet mouth that link to each other with switch in the combustion chamber.
2. the recovery titanium based on ballistic method according to claim 1 is considered blanking device to be worth doing, it is characterized in that, described drift is the cylindrical structural that 40CrMoAl makes, its heat treatment hardness is 36～40HRC, one end of this drift is fixed upper anvil piece and is consisted of annular seal space with anvil, and the other end is fastening with the piston that is operated in the combustion chamber.
3. the recovery titanium bits blanking device based on ballistic method according to claim 1 is characterized in that, described anvil is that high speed steel W18Cr4V is made, and its hardness is 52～56HRC.
4. the recovery titanium based on ballistic method according to claim 1 is considered blanking device to be worth doing, it is characterized in that, be provided with pilot circuit in the described watch-keeping cubicle, this pilot circuit sends to top, combustion chamber sparking plug, air air inlet/outlet and Sweet natural gas inlet mouth and starts out code.
5. the recovery titanium bits blanking device based on ballistic method according to claim 1 is characterized in that, described pulling force post is the cylindrical structural that 40CrMoAl makes, and its heat treatment hardness is 36～40HRC.
6. the recovery titanium bits blanking device based on ballistic method according to claim 1 is characterized in that, described anvil is provided with the sensor that links to each other with switch, and this sensor gathers the enlightenment finishing control that is subjected to the each impact process of force signal conduct on anvil surface.
One kind according to claim 1-6 in the titanium bits of arbitrary described device reclaim technique, it is characterized in that, may further comprise the steps;
1) titanium metal is considered to be worth doing between the anvil and drift that places in the annular seal space, in the combustion chamber, supply with the Sweet natural gas air mixture, then adopt spark ignitor Sweet natural gas and air mixture;
2) start sparking plug, the mixed gas of ignition combustion chamber, moment promotes to impact to the anvil direction with the speed of 30～100m/s with the drift of piston, and the kinetic energy of this drift makes the titanium metal bits be deformed into the titanium metal blank; Sensor on the anvil gathers when being subject to impacting and is subjected to force signal and feeds back to switch, and the prompting impact process finishes;
In the above-mentioned technique, pre-prepd bits will be crushed to grade 50～70mm, and bits do not heat, in any case can not be with the bits that are mixed with detersive power washing composition class article or are bonded together.
8. titanium bits according to claim 7 reclaim technique, it is characterized in that, the volume ratio that contains the effective constituent Sweet natural gas in the described Sweet natural gas air mixture is 15～20%, and remaining is air.
9. titanium bits according to claim 7 reclaim technique, it is characterized in that, described impact number of times is 1-3 time.
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| CN2011101074795A CN102206747B (en) | 2011-04-28 | 2011-04-28 | Device and process for manufacturing blank by recovering titanium scraps on basis of impact method |
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|---|---|---|---|
| CN2011101074795A CN102206747B (en) | 2011-04-28 | 2011-04-28 | Device and process for manufacturing blank by recovering titanium scraps on basis of impact method |
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| CN102206747B true CN102206747B (en) | 2013-01-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3811813A (en) * | 1972-08-25 | 1974-05-21 | Combustion Eng | Briquetting press |
| CN2426795Y (en) * | 2000-04-27 | 2001-04-18 | 王同兴 | Sponge iron powder briquetting machine |
| CN200960732Y (en) * | 2006-11-08 | 2007-10-17 | 江阴市冶金液压机械厂 | Full-automatic iron ground-slag tableting machine |
| CN101142075A (en) * | 2005-03-18 | 2008-03-12 | 株式会社捷太格特 | Compression molding machine for metal material briquette, manufacturing apparatus for metal material briquette, and compression molding method for metal material briquette |
| CN201530139U (en) * | 2009-10-21 | 2010-07-21 | 东莞联志五金制品有限公司 | Metal scrap briquetting machine |
-
2011
- 2011-04-28 CN CN2011101074795A patent/CN102206747B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3811813A (en) * | 1972-08-25 | 1974-05-21 | Combustion Eng | Briquetting press |
| CN2426795Y (en) * | 2000-04-27 | 2001-04-18 | 王同兴 | Sponge iron powder briquetting machine |
| CN101142075A (en) * | 2005-03-18 | 2008-03-12 | 株式会社捷太格特 | Compression molding machine for metal material briquette, manufacturing apparatus for metal material briquette, and compression molding method for metal material briquette |
| CN200960732Y (en) * | 2006-11-08 | 2007-10-17 | 江阴市冶金液压机械厂 | Full-automatic iron ground-slag tableting machine |
| CN201530139U (en) * | 2009-10-21 | 2010-07-21 | 东莞联志五金制品有限公司 | Metal scrap briquetting machine |
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