CN106077655A - A kind of pulsed discharge aluminium section bar process units and method - Google Patents
A kind of pulsed discharge aluminium section bar process units and method Download PDFInfo
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- CN106077655A CN106077655A CN201610613411.7A CN201610613411A CN106077655A CN 106077655 A CN106077655 A CN 106077655A CN 201610613411 A CN201610613411 A CN 201610613411A CN 106077655 A CN106077655 A CN 106077655A
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- graphite
- section bar
- hopper
- aluminium section
- aluminum
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 75
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000004411 aluminium Substances 0.000 title claims abstract description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 70
- 239000010439 graphite Substances 0.000 claims abstract description 70
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 31
- 239000000919 ceramic Substances 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000002699 waste material Substances 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 23
- 239000000463 material Substances 0.000 description 12
- 239000008187 granular material Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1035—Liquid phase sintering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1051—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by electric discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
- B22F2003/208—Warm or hot extruding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of pulsed discharge aluminium section bar process units and method, relate to a kind of discharge plasma aluminium section bar process units and method, belong to shape preparing technical field；The invention aims to solve that existing aluminium section bar production technology stock utilization is low, production process produces the problems such as a large amount of waste materials；The present invention includes that graphite nozzle, ceramic washer, graphite is pullover, graphite sleeve, metal shell, air inlet, hopper cover, hopper, motor, anode, main shaft, negative electrode, the present invention be on the basis of conventional aluminum section bar manufacture, add that graphite nozzle, ceramic washer, graphite is pullover, graphite sleeve, negative electrode and anode carry out pulsed discharge, raw material uses the aluminum bits of residual processing, after aluminum bits are put into hopper, push in graphite sleeve, two ends apply high power pulse electric current makes aluminum bits melt, and then molten aluminum considers to be worth doing extrusion nozzle molding；The present invention can effectively utilize waste aluminum to consider to be worth doing, to reach the purpose of environmental protection.
Description
Technical field
The present invention relates to a kind of discharge plasma aluminium section bar process units and method, belong to shape technology of preparing neck
Territory.
Background technology
Along with the development of science and technology, people are increasing to the demand of material and the energy, on the one hand need us to develop new energy
Source and exploitation raw material, from the angle of sustainable development, with greater need for from how saving the energy, and the most more make full use of raw material
Angle seek new solution.Just think if able to laughable tank that used material, such as aluminum are done, remain after processing
Cutting swarf, it is possible to recycling, then can successfully manage problem above.
Traditional shape is typically to be utilized the cold rolling or equipment of hot rolling of specialty by steel mill or various section bar specialized factory
Manufacturing, such as all types of steel & aluminum section steel etc., the shape of these section bars, specification etc. are all according to certain international standard, country
Standard or industry standard carry out manufacturing, and for needs of production, existing shape manufactures equipment and manufacturer
Method exists following not enough: first, and section rolling mode cost is high, and thin-wall section process technology difficulty is big；Second, the shape of section bar
Shape, specification standardization, have the shape of the cross sectional shape of specific demand, specification for some, it is difficult to meet requirement；3rd,
The supply of material length of product forms is usually no more than 12m, it is impossible to continuous application on a production line.
Process of pulse discharge is in addition to the Joule heat with hot pressed sintering and plastic deformation acceleration of sintering process, also at powder
Intergranular produces DC pulse voltage, and is effectively utilized between powder granule the spontaneous heating effect produced of discharging.Thus create one
The specific phenomenon being conducive to heating of a little process of pulse discharges.First, due to pulsed discharge produce discharge impact ripple and
The most reciprocal flow at high speed of electronics, ion, can make the gas escape of powder adsorption.The initial oxidation film on powder surface
The most breakdown, make powder be purified, activate；Second, owing to pulse is moment, interrupted, altofrequency generation,
At the heat discharge that powder particle produces not in contact with position, and the Joule heat that powder particle contact site produces, all greatly promote
The diffusion of powder particle atom, much greater than under usual hot pressing condition of its diffusion coefficient, thus reach the quick of powder
Fusing；The addition of the 3rd, On-Off fast-pulse, makes the electric discharge position in powder and joule heat parts, all can quickly move
Dynamic, enable the heating homogenization of powder.
Summary of the invention
The invention aims to solve that existing shape production technology stock utilization is low, production process produces
A large amount of waste materials, the problem problems such as prepared material density is low, the invention provides a kind of pulsed discharge aluminium section bar and produce dress
Put and method.
A kind of pulsed discharge aluminium section bar process units, it include graphite nozzle (1), ceramic washer (2), graphite pullover (3),
Graphite sleeve (4), metal shell (5), air inlet (6), hopper cover (7), hopper (8), motor (9), anode (10), main shaft
(11), bolt hole (12), negative electrode (13)；Described hopper cover (7) is that axle is connected with hopper (8), described ceramic washer (2) position
Between metal shell (5) and graphite nozzle (1), metal shell (5) is internal is provided with main shaft (11), this main shaft (11) outer surface
Having screw thread, left section is triangle, is enclosed within graphite pullover (3) internal, and root is connected with motor (9) and anode (10) connects, metal
Embed on shell (5) inwall and be fixed with columnar graphite sleeve (4), this graphite sleeve (4) right-hand member and ceramic washer (2) right-hand member
Between distance be L1, the sidewall of metal shell (5) is fixed with hopper (8), and the bottom of hopper (8) and metal shell (5)
Inner space, the air line distance that this hopper (8) closes between the side of ceramic washer (2) and ceramic washer (2) right-hand member is big
In L1, graphite nozzle (1) bottom righthand side is connected with negative electrode (13).
The big footpath of described main shaft (11) outer surface thread is equal with metal shell (5) internal diameter.
Described ceramic washer (2) is positioned between metal shell (5) and graphite nozzle (1), for isolating metal shell (5)
With graphite nozzle (1).
A kind of pulsed discharge aluminium section bar process units described in employing realizes the method that aluminium section bar produces, described production aluminium profiles
The process of the method for material is, first makes described negative electrode (13) be positioned at graphite nozzle (1) bottom righthand side, and anode (10) is positioned at main shaft
(11) at root, being passed through argon by air inlet (6), ar pressure is more than an atmospheric pressure, by hopper (8) outside metal
The inner chamber of shell (5) adds aluminum bits, then covers tightly airtight for hopper cover (7), opens motor (9), drives main shaft (11) to rotate, logical
Crossing the screw thread on main shaft (11) makes aluminum bits enter graphite sleeve (4) and graphite nozzle (1) is interior, anode (10) and negative electrode (13) it
Between current pulse, heating aluminum bits, be positioned at graphite nozzle (1), between graphite pullover (3) and graphite sleeve (4) aluminum bits generation
Fusing, is considered to be worth doing the aluminum being in molten condition and is extruded by graphite nozzle (1), by changing different graphite nozzle (1), can squeeze
Go out difform aluminium section bar, open hopper (8) in hopper (8), add aluminum bits, close hopper cover (7), pass through air inlet
(6) being passed through argon, the aluminum of molten condition is constantly considered to be worth doing extrusion continuously by the screw thread on the main shaft (11) of rotation, is the most constantly considered to be worth doing by aluminum
It is sent to graphite sleeve (4) internal, then can realize continuous non-waste section bar Die Casting process.
The pulse frequency of described pulse current is 5～200Hz, and the size of current of pulse current is 200～8000A
DC-pulse.
The present invention is that to add graphite nozzle (1), ceramic washer (2), graphite on the basis of conventional aluminum section bar manufactures pullover
(3), graphite sleeve (4), negative electrode (13) and anode (10) carry out pulsed discharge, raw material uses the aluminum bits of residual processing, is considered to be worth doing by aluminum
After putting into hopper, pushing in graphite sleeve (4), two ends apply high power pulse electric current makes aluminum bits melt, then by molten aluminum bits extrusion
Nozzle molding.
Present invention achieves aluminium section bar and produce energy efficient 15%～30%, complex component can be prepared, the material of preparation
Density improve 2%～10%, performance good.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of pulsed discharge aluminium section bar process units of the present invention；
Fig. 2 is during the aluminium section bar production method described in detailed description of the invention four is carried out aluminum bits heating, aluminum bits heating
Time view；
Fig. 3 is after the aluminium section bar production method described in detailed description of the invention six is carried out aluminum bits heating, when aluminum bits are melted
View；
Fig. 4 is the structural representation of a kind of pulsed discharge aluminium section bar process units circular graphitic nozzle (1) of the present invention；
Fig. 5 is the structural representation of a kind of pulsed discharge aluminium section bar process units square graphite nozzle (1) of the present invention；
Fig. 6 is the structural representation of a kind of pulsed discharge aluminium section bar process units groove type graphite nozzle (1) of the present invention
Figure；
Fig. 7 is the structural representation of a kind of pulsed discharge aluminium section bar process units I shape graphite nozzle (1) of the present invention
Figure.
Detailed description of the invention
Detailed description of the invention one: see Fig. 1 and present embodiment is described, it include graphite nozzle (1), ceramic washer (2),
Graphite pullover (3), graphite sleeve (4), metal shell (5), air inlet (6), hopper cover (7), hopper (8), motor (9), anode
(10), main shaft (11), bolt hole (12), negative electrode (13)；Described hopper cover (7) is that axle is connected with hopper (8), described pottery
Packing ring (2) is positioned between metal shell (5) and graphite nozzle (1), and metal shell (5) is internal is provided with main shaft (11), this main shaft
(11) outer surface has screw thread, and left section is triangle, is enclosed within graphite pullover (3) internal, and root is connected with motor (9) and anode (10)
Connect, metal shell (5) inwall embeds and is fixed with columnar graphite sleeve (4), this graphite sleeve (4) right-hand member and ceramic blanket
Distance between circle (2) right-hand member is L1, the sidewall of metal shell (5) is fixed with hopper (8), and the bottom of hopper (8) is with golden
Belonging to the inner space of shell (5), this hopper (8) closes between the side of ceramic washer (2) and ceramic washer (2) right-hand member
Air line distance is more than L1, and graphite nozzle (1) bottom righthand side is connected with negative electrode (13).
Detailed description of the invention two: present embodiment produces with a kind of pulsed discharge aluminium section bar described in detailed description of the invention one
The difference of device is, the big footpath of described main shaft (11) outer surface thread is equal with metal shell (5) internal diameter.
Detailed description of the invention three: present embodiment produces with a kind of pulsed discharge aluminium section bar described in detailed description of the invention one
The difference of device is, described ceramic washer (2) is positioned between metal shell (5) and graphite nozzle (1), for isolating metal
Shell (5) and graphite nozzle (1).
Detailed description of the invention four: see Fig. 2-Fig. 7 and illustrate that present embodiment, present embodiment are to use specific embodiment party
A kind of pulsed discharge aluminium section bar process units described in formula one realizes the method that aluminium section bar produces, the method that described aluminium section bar produces
Process be first to make described negative electrode (13) be positioned at graphite nozzle (1) bottom righthand side, anode (10) is positioned at main shaft (11) root
Place, is passed through argon by air inlet (6), and ar pressure is more than an atmospheric pressure, by hopper (8) to metal shell (5)
Inner chamber adds aluminum bits, then covers tightly airtight for hopper cover (7), opens motor (9), drives main shaft (11) to rotate, passes through main shaft
(11) screw thread on makes aluminum bits enter in graphite sleeve (4) and graphite nozzle (1), promotes blood circulation between anode (10) and negative electrode (13)
Rush electric current, heating aluminum bits, it is positioned at graphite nozzle (1), aluminum between graphite pullover (3) and graphite sleeve (4) is considered to be worth doing and melted,
The aluminum being in molten condition is considered to be worth doing and is extruded by graphite nozzle (1), by changing different graphite nozzle (1), can extrude not
The aluminium section bar of similar shape, opens hopper (8) and adds aluminum bits in hopper (8), close hopper cover (7), continue through air inlet
(6) being passed through argon, the aluminum of molten condition is constantly considered to be worth doing extrusion continuously by the screw thread on the main shaft (11) of rotation, is the most constantly considered to be worth doing by aluminum
It is sent to graphite sleeve (4) internal, then can realize continuous non-waste section bar Die Casting process.
Detailed description of the invention five: the pulse frequency of described pulse current is 5～200Hz, the size of current of pulse current
It it is the DC-pulse of 200～8000A.
In present embodiment, between powder particle, also produce DC pulse voltage, produce between granule under pulse current effect
Raw electric discharge, excites plasma, and by effectively utilizing the spontaneous heating effect produced of discharging between powder granule, this device creates one
The most distinctive phenomenon being conducive to powder rapid melting.First, due to pulsed discharge produce discharge impact ripple and electronics, from
The most reciprocal flow at high speed of son, can make the gas escape of powder adsorption, and the initial oxidation film on powder surface is necessarily
In degree breakdown, make powder be purified, activate；Second, owing to pulse is moment, interrupted, altofrequency generation, at powder
The heat discharge that granule produces not in contact with position, and the Joule heat that powder particle contact site produces, be all greatly facilitated powder
The diffusion of granule atom, much greater than under usual hot pressing condition of its diffusion coefficient, thus reach powder rapid melting；The
The addition of three, On-Off fast-pulse, makes the electric discharge position in powder and joule heat parts, all can quickly move, make powder
Heating can homogenization.Making pulse concentrate on crystal grain junction is the feature that DC-pulse applies process.Direct current arteries and veins
During punching electricity applies, between granule during electric discharge, the instantaneous generation of meeting is up to the localized hyperthermia of thousand of degree to 10,000 degree, thus accelerates
The fusing of granule, in general, the implementation process of this device can be regarded as granule electric discharge, the knot of conductive heater comprehensive function
Really.
In process of pulse discharge, between granule during electric discharge, the local that the instantaneous generation of meeting is up to thousand of degree to 10,000 degree is high
Temperature, causes evaporation and fusing at particle surface；Cervical region is formed, due to heat immediately from the transmission of heating center at grain contact point
Spreading to particle surface with to surrounding, cervical region quickly cools down and makes vapour pressure be less than other positions, accelerates densification process.
The present invention utilizes pulsed discharge sintering technology so that the quickly heating of aluminum bits reaches fusing or semi-solid state, fast
Rapid-result type.So can realize twice laid, such as remaining cutting swarf after processing, the metal after using, wait as raw material
；Realize energy-saving and emission-reduction, owing to the efficiency of pulsed discharge is high, the energy consumption of metal molten can be reduced；The material that processability is excellent
Material, the material prepared by pulsed discharge has even tissue, and crystal grain is tiny so that the performance of material is improved,
And realize producing continuously；Can also carry out some fragile material processing and manufacture, directly after processing, remaining cutting swarf is made
Finished section bar, it is not necessary to carry out intermediate treatment, can reduce the loss that fragile material causes due to the course of processing.
Claims (5)
1. a pulsed discharge aluminium section bar process units, it is characterised in that it includes graphite nozzle (1), ceramic washer (2), stone
Ink pullover (3), graphite sleeve (4), metal shell (5), air inlet (6), hopper cover (7), hopper (8), motor (9), anode
(10), main shaft (11), bolt hole (12), negative electrode (13)；Described hopper cover (7) is that axle is connected with hopper (8), described pottery
Porcelain packing ring (2) is positioned between metal shell (5) and graphite nozzle (1), and metal shell (5) is internal is provided with main shaft (11), this main shaft
(11) outer surface has screw thread, and left section is triangle, is enclosed within graphite pullover (3) internal, and root is connected with motor (9) and anode (10)
Connect, metal shell (5) inwall embeds and is fixed with columnar graphite sleeve (4), this graphite sleeve (4) right-hand member and ceramic blanket
Distance between circle (2) right-hand member is L1, the sidewall of metal shell (5) is fixed with hopper (8), and the bottom of hopper (8) is with golden
Belonging to the inner space of shell (5), this hopper (8) closes between the side of ceramic washer (2) and ceramic washer (2) right-hand member
Air line distance is more than L1, and graphite nozzle (1) bottom righthand side is connected with negative electrode (13).
2. according to a kind of pulsed discharge aluminium section bar process units described in claim 1, it is characterised in that described main shaft
(11) the big footpath of outer surface thread is equal with metal shell (5) internal diameter.
3. according to a kind of pulsed discharge aluminium section bar process units described in claim 1, it is characterised in that described ceramic washer
(2) it is positioned between metal shell (5) and graphite nozzle (1), for isolating metal shell (5) and graphite nozzle (1).
4. use a kind of pulsed discharge aluminium section bar process units described in claim 1 to realize the method that aluminium section bar produces, its
Being characterised by, the process of described aluminium section bar production method is: first make described negative electrode (13) be positioned at graphite nozzle (1) right
Lower end, anode (10) is positioned at main shaft (11) root, is passed through argon by air inlet (6), and ar pressure is more than an atmospheric pressure,
Add aluminum by hopper (8) to the inner chamber of metal shell (5) to consider to be worth doing, then cover tightly airtight for hopper cover (7), open motor
(9), drive main shaft (11) to rotate, make aluminum bits enter graphite sleeve (4) and graphite nozzle (1) by the screw thread on main shaft (11)
In, current pulse between anode (10) and negative electrode (13), heating aluminum consider to be worth doing, be positioned at graphite nozzle (1), graphite pullover (3) and
Aluminum bits between graphite sleeve (4) melt, and are considered to be worth doing by the aluminum being in molten condition and are extruded by graphite nozzle (1), by more
Change different graphite nozzle (1), difform aluminium section bar can be extruded, open hopper (8) in hopper (8), add aluminum bits,
Closing hopper cover (7), continue through air inlet (6) and be passed through argon, the screw thread on the main shaft (11) of rotation is constantly by molten condition
Aluminum bits continuously extrusion, the most constantly aluminum bits are sent to graphite sleeve (4) internal, then can realize continuous non-waste section bar pressure
Casting production process.
Method the most according to claim 4, it is characterised in that the pulse frequency of described pulse current is 5～200Hz,
The size of current of pulse current is the DC-pulse of 200～8000A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610613411.7A CN106077655A (en) | 2016-08-01 | 2016-08-01 | A kind of pulsed discharge aluminium section bar process units and method |
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| CN201610613411.7A CN106077655A (en) | 2016-08-01 | 2016-08-01 | A kind of pulsed discharge aluminium section bar process units and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024629A (en) * | 2019-12-18 | 2020-12-04 | 哈尔滨理工大学 | Method for preparing semi-solid blank by pulse current |
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| CN103008601A (en) * | 2013-01-23 | 2013-04-03 | 哈尔滨理工大学 | Pulse discharge auxiliary die-casting device and method |
| CN205834242U (en) * | 2016-08-01 | 2016-12-28 | 哈尔滨理工大学 | A kind of pulsed discharge aluminium section bar process units |
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2016
- 2016-08-01 CN CN201610613411.7A patent/CN106077655A/en active Pending
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|---|---|---|---|---|
| CN1066808A (en) * | 1992-06-26 | 1992-12-09 | 冶金工业部钢铁研究总院 | Screw propulsion style continuous extruding forming device |
| JPH06304733A (en) * | 1993-04-21 | 1994-11-01 | Japan Steel Works Ltd:The | Injection molding method for low melting metallic material and apparatus therefor |
| US20010004931A1 (en) * | 1999-12-24 | 2001-06-28 | Nissei Plastic Industrial Co., Ltd. | Injection apparatus for melted metals |
| WO2003018233A1 (en) * | 2001-08-23 | 2003-03-06 | Commonwealth Scientific And Industrial Research Organisation | Process and apparatus for producing shaped metal parts |
| CN103008601A (en) * | 2013-01-23 | 2013-04-03 | 哈尔滨理工大学 | Pulse discharge auxiliary die-casting device and method |
| CN205834242U (en) * | 2016-08-01 | 2016-12-28 | 哈尔滨理工大学 | A kind of pulsed discharge aluminium section bar process units |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024629A (en) * | 2019-12-18 | 2020-12-04 | 哈尔滨理工大学 | Method for preparing semi-solid blank by pulse current |
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