CN105333731B - A kind of method of smelting of discharge smelting apparatus and ZrTiAlV alloys - Google Patents
A kind of method of smelting of discharge smelting apparatus and ZrTiAlV alloys Download PDFInfo
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- CN105333731B CN105333731B CN201510809116.4A CN201510809116A CN105333731B CN 105333731 B CN105333731 B CN 105333731B CN 201510809116 A CN201510809116 A CN 201510809116A CN 105333731 B CN105333731 B CN 105333731B
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- die sleeve
- tubular die
- seaming chuck
- electric discharge
- smelting apparatus
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Abstract
One kind electric discharge smelting apparatus, it mainly includes upper and lower cushion block, shoulder type seaming chuck and tubular die sleeve, and the material of the device is high strength graphite.Upper cushion block is located above shoulder type seaming chuck, shoulder type seaming chuck contact with the upper surface of tubular die sleeve.The push-down head of the device is integrated with tubular die sleeve, and the boss of tubular die sleeve bottom is placed on lower cushion block.It is mainly using the method for smelting of the ZrTiAlV alloys of above-mentioned electric discharge smelting apparatus in the cavity between seaming chuck and tubular die sleeve that alloy cylinder is loaded above-mentioned electric discharge smelting apparatus, being placed in carries out melting in plasma agglomeration machine, load pulses electric current, seaming chuck makes it contact sealing with tubular die sleeve to die sleeve pressure, vacuum pumping in sintering machine, it is brought rapidly up being incubated 20min to after 1800 DEG C, electric discharge smelting apparatus and alloy is taken out after finally power-off, natural cooling cooling.Simple structure of the present invention, can not be limited by smelting temperature and material molten state.
Description
Technical field
The present invention relates to a kind of smelting apparatus and the method for smelting of alloy.
Background technology
Early in nineteen thirty, American scientist just proposes pulse electric current sintering principle, but until nineteen sixty-five, pulse current
Sintering technology is just applied in beautiful, Deng states.Japan obtains the patent of SPS technologies, and Japan develops First within 1988
Industrial SPS devices, and the popularization and application in new material research field.After nineteen ninety, Japan is proposed and can be used for industrial life
The SPS third generation products of product, the 5000~8000A of sintering pressure and pulse current with 10~100t.Develop pressure again recently
Power reaches 500t, and pulse current is the large-scale SPS devices of 25000A.
Luo Junting etc. has invented a kind of to horizontal discharge sintering melting machine is extruded, the equipment can avoid the not right of loading
The inhomogeneities of title property and agglomerated material, while the electric discharge melting of material can be realized.But the sintering machine complex structure, manufacturing cost
Higher, operation is also more inconvenient.Luo Junting etc. have also been invented a kind of nitridation of the low temperature Flashmelt for vertical sintering machine
Aluminium ceramic material and forming method, but the die device that the method is used is complex.
The content of the invention
It is an object of the invention to provide a kind of simple structure, can not receive smelting temperature and material molten state limit,
For the electric discharge smelting apparatus and the method for smelting of ZrTiAlV alloys of vertical discharge sintering machine.
Technical scheme is as follows：
1st, discharge smelting apparatus：
The present invention includes：Upper and lower cushion block, shoulder type seaming chuck and tubular die sleeve, the material of the smelting apparatus are high-strength
Degree graphite.Wherein, upper cushion block is located above shoulder type seaming chuck, and the shoulder type seaming chuck is provided with the middle part of axial direction and compares tubular
Die sleeve internal diameter is big, the cylindrical shoulder smaller than external diameter, the lower surface of the cylindrical shoulder and the upper surface of tubular die sleeve, makes
It pressure-loaded in the upper surface of tubular die sleeve, can reach the effect of sealing heat conduction when seaming chuck is stressed.And shoulder type
The bottom of seaming chuck is suspended from tubular die sleeve without being contacted with the metal of melting is needed.The push-down head of the device is with tubular die sleeve
Integrally, the bottom of the tubular die sleeve is provided with boss, by the boss and above-mentioned shoulder type seaming chuck load pulses electric current, can in case
Only the metal material of molten condition flows out from the gap of push-down head and tubular die sleeve in fusion process, finally by said apparatus group
It is positioned over after dress on vertical discharge sintering machine, the boss of tubular die sleeve is placed on lower cushion block.
2nd, the method for smelting of ZrTiAlV alloys：
1. prepare a diameter of 24~35mm, highly for 25~40mm cylinder 47Zr-45Ti-5Al-3V alloys or
30Zr-62Ti-5Al-3V alloys；
2. the alloy cylinder for 1. step being prepared is put between the seaming chuck of above-mentioned electric discharge smelting apparatus and tubular die sleeve
Cavity in；
3. above-mentioned electric discharge smelting apparatus are integrally put into discharge plasma sintering machine carries out melting.By loading 3000~
5000A pulse currents, the descending pressure to 10~30MPa of tubular die sleeve of seaming chuck makes it that sealing is contacted with die sleeve, and will sintering
Vacuum pumping in machine, vacuum is 10-3Pa, prevents alloy to be oxidized.
4. pulse current is loaded on cylinder alloy by seaming chuck and tubular die sleeve, alloy is brought rapidly up to 1800
20min is incubated after DEG C；
5. last discharge sintering device powers down, natural cooling cooling, after after device cooling, take out electric discharge smelting apparatus,
Take out the alloy after melting.
The present invention has the following advantages that compared with prior art：
The electric discharge smelting apparatus simple structure, its seaming chuck is special shoulder type seaming chuck, can be in seaming chuck
Pressure-loaded reaches the effect of sealing heat conduction in the upper surface of tubular die sleeve when being stressed, can not be molten by smelting temperature and material
Melt state limit；And the lower part of seaming chuck not with material sample directly contact, while push-down head design with tubular die sleeve be one
Body, the material of molten condition will not be made by seaming chuck and cylinder so when high melt is carried out to material sample because pressure is excessive
Gap is flowed out and pollutes environment in sintering machine between shape die sleeve.
Brief description of the drawings
Fig. 1 is electric discharge smelting apparatus schematic diagram of the invention.
Specific embodiment
In the electric discharge smelting apparatus schematic diagram for discharge sintering machine shown in Fig. 1, upper cushion block 1 is located on shoulder type and presses
Above first 2, the shoulder type seaming chuck is provided with, than external diameter smaller cylindrical stage bigger than tubular die sleeve internal diameter at the middle part of axial direction
Shoulder, the lower surface of the cylindrical shoulder and the upper surface of tubular die sleeve 3, the bottom of shoulder type seaming chuck is suspended from tubular die sleeve
It is interior without being contacted with the metal 4 of melting is needed.The push-down head 5 of the device is integrated with tubular die sleeve, the bottom of the tubular die sleeve
Boss is provided with, by the boss and above-mentioned shoulder type seaming chuck load pulses electric current, the boss of tubular die sleeve is placed on lower cushion block 6
On.The material of the smelting apparatus is high strength graphite.
Embodiment 1
The 47Zr-45Ti-5Al-3V alloys cylinder of a diameter of 24mm, a height of 25mm is loaded into above-mentioned electric discharge smelting apparatus
Seaming chuck and tubular die sleeve between cavity in, above-mentioned electric discharge smelting apparatus are integrally positioned in discharge plasma sintering machine
Carry out melting.By loading 3000A pulse currents, the descending pressure to die sleeve 10MPa of seaming chuck makes it be contacted with tubular die sleeve
Sealing, now seaming chuck shoulder portion is fixed at tubular die sleeve upper surface.By vacuum pumping in sintering machine, vacuum is 10- 3Pa, pulse current is loaded on 47Zr-45Ti-5Al-3V alloy cylinders by seaming chuck and tubular die sleeve, makes the alloy fast
Speed is incubated 20min after being warming up to 1800 DEG C.Last discharge sintering device powers down, natural cooling cooling, after after device cooling, takes
Go out the smelting apparatus that discharge, take out the alloy after melting.
Embodiment 2
The 30Zr-62Ti-5Al-3V alloys cylinder of a diameter of 28mm, a height of 30mm is loaded into above-mentioned electric discharge smelting apparatus
Seaming chuck and tubular die sleeve between cavity in, above-mentioned electric discharge smelting apparatus are integrally positioned in discharge plasma sintering machine
Carry out melting.By loading 4000A pulse currents, the descending pressure to die sleeve 20MPa of seaming chuck makes it be contacted with tubular die sleeve
Sealing, now seaming chuck shoulder portion is fixed at tubular die sleeve upper surface.By vacuum pumping in sintering machine, vacuum is 10- 3Pa, pulse current is loaded on 30Zr-62Ti-5Al-3V cylinders by seaming chuck and tubular die sleeve, the alloy is risen rapidly
20min is incubated after warm to 1800 DEG C.Last discharge sintering device powers down, natural cooling cooling, after after device cooling, taking-up is put
Electric smelting device, takes out the alloy after melting.
Embodiment 3
The 30Zr-62Ti-5Al-3V alloys cylinder of a diameter of 35mm, a height of 40mm is loaded into above-mentioned electric discharge smelting apparatus
Seaming chuck and tubular die sleeve between cavity in, above-mentioned electric discharge smelting apparatus are integrally positioned in discharge plasma sintering machine
Carry out melting.By loading 5000A pulse currents, the descending pressure to die sleeve 30MPa of seaming chuck makes it be contacted with tubular die sleeve
Sealing, now seaming chuck shoulder portion is fixed at tubular die sleeve upper surface.By vacuum pumping in sintering machine, vacuum is 10- 3Pa, pulse current is loaded on 30Zr-62Ti-5Al-3V cylinders by seaming chuck and tubular die sleeve, the alloy is risen rapidly
20min is incubated after warm to 1800 DEG C.Last discharge sintering device powers down, natural cooling cooling, after after device cooling, taking-up is put
Electric smelting device, takes out the alloy after melting.
Claims (2)
1. a kind of electric discharge smelting apparatus, it is characterised in that：It includes：Upper and lower cushion block, shoulder type seaming chuck and tubular die sleeve, should
The material of smelting apparatus is high strength graphite；Wherein, upper cushion block is located above shoulder type seaming chuck, the shoulder type seaming chuck
Be provided with, than external diameter smaller cylindrical shoulder bigger than tubular die sleeve internal diameter at the middle part of axial direction, the lower surface of the cylindrical shoulder with
The upper surface of tubular die sleeve, the bottom of shoulder type seaming chuck is suspended from tubular die sleeve without being connect with the metal of melting is needed
Touch；Push-down head is integrated with tubular die sleeve, and the bottom of the tubular die sleeve is provided with boss, and the boss of the tubular die sleeve is placed on underlay
On block.
2. usage right requires the method for smelting of the ZrTiAlV alloys of 1 electric discharge smelting apparatus, it is characterised in that：
1. a diameter of 24~35mm is prepared, is highly the cylinder 47Zr-45Ti-5Al-3V alloys or 30Zr- of 25~40mm
62Ti-5Al-3V alloys；
2. the alloy cylinder for 1. step being prepared is put into the sky between the seaming chuck of above-mentioned electric discharge smelting apparatus and tubular die sleeve
In chamber；
3. above-mentioned electric discharge smelting apparatus are integrally put into discharge plasma sintering machine carries out melting, by loading 3000~
5000A pulse currents, the descending pressure to 10~30MPa of tubular die sleeve of seaming chuck makes it that sealing is contacted with die sleeve, and will sintering
Vacuum pumping in machine, vacuum is 10-3Pa, prevents alloy to be oxidized；
4. pulse current is loaded on cylinder alloy by seaming chuck and tubular die sleeve, alloy is brought rapidly up to after 1800 DEG C
Insulation 20min；
5. last discharge sintering device powers down, natural cooling cooling, after after device cooling, take out electric discharge smelting apparatus, take out
Alloy after melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510809116.4A CN105333731B (en) | 2015-11-20 | 2015-11-20 | A kind of method of smelting of discharge smelting apparatus and ZrTiAlV alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510809116.4A CN105333731B (en) | 2015-11-20 | 2015-11-20 | A kind of method of smelting of discharge smelting apparatus and ZrTiAlV alloys |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105333731A CN105333731A (en) | 2016-02-17 |
| CN105333731B true CN105333731B (en) | 2017-05-31 |
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|---|---|---|---|
| CN201510809116.4A Expired - Fee Related CN105333731B (en) | 2015-11-20 | 2015-11-20 | A kind of method of smelting of discharge smelting apparatus and ZrTiAlV alloys |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106891009B (en) * | 2017-01-26 | 2018-12-04 | 燕山大学 | A kind of multidirectional discharge sintering extruder |
| CN108950302B (en) * | 2018-08-03 | 2019-08-02 | 中鼎特金秦皇岛科技股份有限公司 | A kind of high-strength corrosion-resistant erosion titanium alloy and preparation method thereof |
| CN109930031B (en) * | 2019-03-26 | 2020-02-04 | 燕山大学 | Preparation method of ZrTiAlNiV alloy |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0949036A (en) * | 1995-08-10 | 1997-02-18 | Tanaka Kikinzoku Kogyo Kk | Production of electrical contact |
| CN102765946A (en) * | 2012-07-05 | 2012-11-07 | 中国科学院宁波材料技术与工程研究所 | Current assisted method for quickly preparing powder |
| CN202942867U (en) * | 2012-07-05 | 2013-05-22 | 中国科学院宁波材料技术与工程研究所 | Device for rapidly preparing powder assisted by current |
| WO2014202390A1 (en) * | 2013-06-20 | 2014-12-24 | Siemens Aktiengesellschaft | Method and device for producing contact elements for electrical switching contacts |
| CN104889186A (en) * | 2015-06-18 | 2015-09-09 | 燕山大学 | Electrical field assisted forward and backward combined extrusion forming method for ZrTiAlV alloy |
-
2015
- 2015-11-20 CN CN201510809116.4A patent/CN105333731B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0949036A (en) * | 1995-08-10 | 1997-02-18 | Tanaka Kikinzoku Kogyo Kk | Production of electrical contact |
| CN102765946A (en) * | 2012-07-05 | 2012-11-07 | 中国科学院宁波材料技术与工程研究所 | Current assisted method for quickly preparing powder |
| CN202942867U (en) * | 2012-07-05 | 2013-05-22 | 中国科学院宁波材料技术与工程研究所 | Device for rapidly preparing powder assisted by current |
| WO2014202390A1 (en) * | 2013-06-20 | 2014-12-24 | Siemens Aktiengesellschaft | Method and device for producing contact elements for electrical switching contacts |
| CN104889186A (en) * | 2015-06-18 | 2015-09-09 | 燕山大学 | Electrical field assisted forward and backward combined extrusion forming method for ZrTiAlV alloy |
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| CN105333731A (en) | 2016-02-17 |
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