CN106493185A - Right angle channel continuous extrusion device - Google Patents
Right angle channel continuous extrusion device Download PDFInfo
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- CN106493185A CN106493185A CN201611096233.1A CN201611096233A CN106493185A CN 106493185 A CN106493185 A CN 106493185A CN 201611096233 A CN201611096233 A CN 201611096233A CN 106493185 A CN106493185 A CN 106493185A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/001—Extruding metal; Impact extrusion to improve the material properties, e.g. lateral extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
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Abstract
The present invention relates to a kind of right angle channel continuous extrusion device, it includes the first extrusion die（27）, first extrusion die（27）Including the first extrusion chamber（30）, first extrusion chamber（30）Front side is provided with the first feeding-passage（28）, first extrusion chamber（30）Top is provided with first and rushes（31）, second rush（32）Rush with the 3rd（33）, described second rushes（32）Rush with the 3rd（33）It is symmetrically arranged（31）Both sides, described second rushes（32）Rush with the 3rd（33）In 120 ° of angles, the extrusion chamber（30）Lower section is provided with right angle tapping channel（29）.Present invention achieves the consecutive production of Cu-Cr-Zr alloy contact line, and do not affected by body of heater amount of capacity, random length can be produced, meet the Cu-Cr-Zr alloy contact line of component requirements, disclosure satisfy that the demand of following Development of High Speed Railway.
Description
Technical field
The present invention relates to a kind of right angle channel continuous extrusion device, is mainly used in long length high-strength high-conductivity copper-chromium-zirconium and connects
The consecutive production of tactile line.
Background technology
With the development of electronic information technology, more and more higher is required to the comprehensive performance of copper alloy conductive material,
Which is asked to keep high intensity（Hardness）, toughness, wearability while, still keep higher electric conductivity, heat conductivity, tolerance to cold, nothing
The characteristics such as ferromagnetism.These excellent characteristics, make copper alloy be increasingly becoming electric power, information, traffic, the energy, light industry and space flight boat
Important meals material used in the high-tech areas such as sky.A lot of occasion applications seldom in the form of fine copper, this is because fine copper
Intensity relatively low（230～300 MPa）, although 400 more than MPa can be reached after cold working, percentage elongation is only 2%, is adding
When using under heat or uniform temperature, which is strengthened effect and is easy to disappear.So, fine copper be applicable only to the little electric power of stress,
Electrical equipment, the electric conductor of electronics, radiator, decoration etc..On the premise of some premium properties of fine copper are kept, improve as far as possible
The intensity of copper（Hardness）And wearability, immediately high-strength high-conductive copper alloy be gradually developed.
At present high-speed electric railway adopts Cu-Mg, Cu-Sn alloyed contact line, and such wire rod is losing conductivity
Premised on, and ageing strengthening type copper alloy such as Cu-Cr-Zr etc., it is to separate out nanometer particle using ageing strengthening to improve material
Material intensity, and ensure that the intensity of material, such material have a matching relationship of prominent intensity and conductivity, but such conjunction
There is production control difficulty, high cost, the production in enormous quantities difficult point such as quality is unstable in gold.
Cu-Cr-Zr alloy as a kind of high intensity, high connductivity, high softening temperature alloy material, its excellent performance by
It is widely used in many key areas of national economy.This material adds crome metal and metal zirconium, due to chromium with copper as base
Extremely strong with the affinity of oxygen under high melt casting condition with zirconium, easily voloxidation in melting and casting process, thus,
Production difficulty is larger.Generally need using vacuum melting and the method for casting, to reduce oxidation and volatilize, it is ensured that product
Finally there is satisfactory chemical composition.However, this kind of mode long the production cycle, due to being one casting of a stove, length weight and
Shape is all restricted, and vacuum production cost height, yield are little, it is difficult to set up serialization commercial production scale.
Content of the invention
The technical problem to be solved is to provide a kind of right angle channel continuously extruded dress for above-mentioned prior art
Put, it achieves the consecutive production of Cu-Cr-Zr alloy contact line, and is not affected by body of heater amount of capacity, can produce arbitrarily long
Degree, the Cu-Cr-Zr alloy contact line for meeting component requirements, disclosure satisfy that the demand of following Development of High Speed Railway.
The present invention the adopted technical scheme that solves the above problems is：A kind of right angle channel continuous extrusion device, it includes
First extrusion die, first extrusion die include the first extrusion chamber, are provided with first on front side of first extrusion chamber
Feeding-passage, be provided with above first extrusion chamber first rush, second rushes and the 3rd rushes, described first rush,
Second rush and the 3rd rush in be provided with drift with each Self Matching, described first rushes and is arranged in a vertical direction, described
Second rushes and the 3rd rushes to be symmetrically arranged and rush both sides in first, and described first rushes as two volumes, and described second
Rush and the 3rd rush as a volume, described second rushes and the 3rd rush in 120 ° of angles, sets below the extrusion chamber
Be equipped with right angle tapping channel, the right angle channel discharging opening positioned at first rush immediately below.
Water-cooling system is provided with the outside of the right angle tapping channel.
Compared with prior art, it is an advantage of the current invention that：
1 present invention achieves the consecutive production of Cu-Cr-Zr alloy contact line, and is not affected by body of heater amount of capacity, can give birth to
Produce random length, meet the Cu-Cr-Zr alloy contact line of component requirements, disclosure satisfy that the demand of following Development of High Speed Railway；
2nd, the present invention is continuously extruded using right angle channel, and after can making copper alloy through large plastometric set, crystal grain is more uniform, more
Tiny.
Description of the drawings
Fig. 1 be application the present invention a kind of long length high-strength high-conductivity copper-chromium-zirconium contact line production technology in antivacuum
The structural representation of smelting apparatus.
Fig. 2 is traditional three bodies stove alloy composition structural representation pockety.
Fig. 3 be application the present invention a kind of long length high-strength high-conductivity copper-chromium-zirconium contact line production technology in connect online
The structural representation of continuous solution strengthening device.
Fig. 4 be application the present invention a kind of long length high-strength high-conductivity copper-chromium-zirconium contact line production technology in connect online
The structural representation of continuous granulating unit.
Fig. 5 is a kind of structural representation of right angle channel continuous extrusion device of the invention.
Fig. 6 is a kind of structural representation of another embodiment of right angle channel continuous extrusion device of the invention.
A-A sectional views of the Fig. 7 for Fig. 6.
B-B sectional views of the Fig. 8 for Fig. 6.
C-C sectional views of the Fig. 9 for Fig. 6.
Wherein：
All-in-one oven 1
Second body stove 2
3rd body stove 3
Interface channel 4
Graphite mace is from even device 5
Hot-wire coil 6
Feed intake passage 7
Feeding device 8
Cover plate 9
Argon import 10
Pressure regulator 11
Phosphorate carbon mouth 12
Crystallizer 13
First outer cylinder body 14
Bell-type electromagnetic heater 15
First rotation steel cylinder 16
First charging aperture 17
First discharging opening 18
Second outer cylinder body 19
Water inlet 20
Outlet 21
Water-cooling circulating system 22
Second charging aperture 23
Second discharging opening 24
Mesh plate 25
Second rotation steel cylinder 26
First extrusion die 27
First feeding-passage 28
Right angle tapping channel 29
First extrusion chamber 30
First rushes 31
Second rushes 32
3rd rushes 33
Water-cooling system 34
Second extrusion die 35
Second extruding cavity 36
Second feeding-passage 37
Center tapping channel 38
First right angle channel 39
First Vertical Channel 39.1
First level passage 39.2
Second right angle channel 40
Second Vertical Channel 40.1
Second horizontal channel 40.2
Reverse circulation cooling system 41
Feed pressurization passage 42.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
A kind of production technology of the long length high-strength high-conductivity copper-chromium-zirconium contact line in the present embodiment, it includes following work
Skill step：
Step one, non-vacuum melting
Throwing in standard cathode copper, copper chromium intermediate alloy and copper zirconium intermediate alloy into non-vacuum melting device in proportion carries out copper chromium
The melting of zircaloy；
The structure of the non-vacuum melting device is as shown in figure 1, it includes all-in-one oven 1, the second body stove 2 and the 3rd body stove 3, institute
State and interface channel 4 is provided between the second body stove 2 and the 3rd body stove 3, be provided with graphite mace certainly in the middle part of the interface channel 4
Even device 5, the graphite mace is from the outside of the interface channel 4 of 5 both sides of even device around being equipped with hot-wire coil 6；
Loading channel 7 is provided with the top of the all-in-one oven 1, feeding device 8 in the loading channel 7, is provided with, described first
1 front end of body stove is provided with cover plate 9；
Argon import 10 and pressure regulator 11 are provided with the top of the all-in-one oven 1, the second body stove 2 and the 3rd body stove 3；
It is provided with, at the top of the second body stove 2 and the 3rd body stove 3, the carbon mouth 12 that phosphorates；
Upper lead conticaster is provided with above the 3rd body stove 3, and the crystallizer 13 of the upper lead conticaster stretches into the 3rd body stove 3
Interior；
Space in all-in-one oven, after feeding device adds material, above stove liquid（Argon room）Interior full of argon, keep air pressure to exist
The pressure-fired of 1.02 normal atmospheres, if it exceeds 1.02 normal atmospheres, pressure regulator is automatically releasable gas and automatically adjusts,
If air pressure can make stove water and air less than the pressure-fired of 1.02 normal atmospheres, automatic inflating device applying argon gas by the technology
Isolation, and zirconium is not reacted with noble gases argon, so as to ensure that chromium is not reacted with extraneous gas with zirconium.Simultaneously
The aqueous vapor on copper coin and other gas blow-out argon rooms can be will be attached to.Until copper coin is added completely in all-in-one oven, close
Close cover plate.
In 3rd body stove, the carbon mouth that phosphorates can be closed after good phosphorus piece and wooden carbon is added, and the purpose of the carbon that phosphorates is made in furnace gas
Foreign gas fully can be reacted, and reach deoxygenation, the purpose of dehydrogenation.In second body stove, it is similar to.The function phase of pressure regulator is same.
This step is further to innovate on the basis of existing three bodies stove and improve, as all-in-one oven and the second body stove are passed through
After electromagnetic agitation, internal alloy composition distribution is still uneven, presenting the characteristics of not only disperse but also gather, the alloy of a part
The concentration of composition is high, is distributed in Semen Jujubae shape many places, and the concentration of a part of alloying component is low, as shown in Figure 2；Cause this Semen Jujubae formula
The reason for distribution is the i.e. metal bond energy in stove liquid between the metal cation of solvent as the viscosity of alloying furnace liquid solvent is big
Height, the resistance of the diffusion of alloy elements of addition are big, and alloying element is not easy uniform diffusion, just as adding Semen Sesami in oil, though
So through stirring, but still uniformly can not spread, it is different from soluble in water uniformly the diffusion like that of sodium chloride and is formed stable molten
Liquid.For solving the problems, such as that alloying element uniformly spreads, using stove water when the interface channel of the second body stove and the 3rd body stove, increasing
Plus the vortex that hot-wire coil is produced is sufficiently stirred for, and when graphite mace is from even device, as graphite mace is from even
Under multiple spine effects on device, the alloying element stove water of Semen Jujubae formula can be broken and redistribute, and make addition alloying element equal
Homogenize.
Step 2, continuous up-casting
Cu-Cr-Zr alloy is prepared using Continuous Up casting mode and continuously casts bar；
Step 3, on-line continuous solution strengthening
Using on-line continuous solution strengthening device between 960 ~ 1000 DEG C on-line continuous solution strengthening 0.5 ~ 2 hour, then adopt
Room temperature is cooled to on-line continuous granulating unit；
As shown in figure 3, the on-line continuous solution strengthening device includes the first outer cylinder body 14, on 14 inwall of the first outer cylinder body
Bell-type electromagnetic heater 15 is provided with, first outer cylinder body 14 is provided centrally with the first rotation steel cylinder 16, outside described first
The upper and lower of cylinder 14 is respectively arranged with first charging aperture 17 and the first discharging opening 18；
First outer cylinder body, 14 top is additionally provided with argon import 10 and pressure regulator 11；
Cu-Cr-Zr alloy is continuously cast bar and is wound on the first rotation steel cylinder from after first charging aperture entrance, again from the after solution strengthening
One discharging opening is out；
The application adopts bell-type electromagnetic heater, and should not use electrical resistance heating, because resistance wire can not contact copper bar, with rotation
The copper alloy bar on steel cylinder for turning rubs, and can damage resistance wire, can only carry out conduction of heat by gas, and as shielding gas
Argon heat transfer property extremely low so that heats extreme difference；
Another advantage of bell-type electromagnetic heater is that temperature can be controlled in certain limit in heat treatment process, but by
Heat conduction in air is stronger, can form cross-ventilation, so as to cause heat skewness, so as to cause to be heated element heating
Uneven, so that it is uneven to be heated component temperature（Although copper alloy is the good conductor of heat, this non-uniform temperature shows
As still projecting）, and the surrounding that the device heating can be in heating element heater is utilized, along with the copper alloy casting bar on steel cylinder is not
Stop rotating, copper alloy bar can be made uniformly to heat；
Make shielding gas additionally, due to using argon, as the heat conductivity of argon is low, can greatly reduce the convection current due to gas
The heat skewness weighing apparatus phenomenon of generation, so that improve the uniformity of element heating；
The method that the copper bar of whole disk is carried out resistance heating by this device contrast tradition in a fixed manner, with great advantage.
As shown in figure 4, the on-line continuous granulating unit includes the second outer cylinder body 19,19 top of the second outer cylinder body and
Bottom is respectively arranged with outlet 21 and water inlet 20, is provided with water-cooling circulating system 22 outside second outer cylinder body 19,
The water-cooling circulating system 22 is connected with water inlet 20 and outlet 21 respectively by pipeline, in second outer cylinder body 19
Portion is provided with upper and lower two mesh plates 25, and upper and lower two mesh plates 25 are located between water inlet 20 and outlet 21, described
The second rotation steel cylinder 26 is provided between upper and lower two mesh plates 25, is provided with second charging aperture 23 on second outer cylinder body 19
With the second discharging opening 24, the second charging aperture 23 and the second discharging opening 24 be located between upper and lower two mesh plates 25, and described the
Two charging apertures 23 are located above the second discharging opening 24；
Continuous uniform water cooling, if not adopting mesh form, middle current can be more very fast than the water velocity at edge, thus can
Form copper bar water cooling uneven, so that there is larger difference in copper alloy internal organizational structure, if adopting mesh-structured water cooling,
Middle water velocity is not in laminar flow phenomenon, so as to reach the effect of continuous uniform water cooling, so that copper alloy is dry
Even cooling so that organize even structure inside copper copper chromium zirconium.
Step 4, right angle channel are continuously extruded
Continuously extruded process is carried out using right angle channel continuous extrusion device, Cu-Cr-Zr alloy is obtained and is continuously contacted line bar base；
The continuous extrusion device has following two embodiments：
Embodiment one：
As shown in figure 5, the right angle channel continuous extrusion device includes that the first extrusion die 27, first extrusion die 27 are wrapped
The first extrusion chamber 30 is included, the first feeding-passage 28, first extrusion chamber on front side of first extrusion chamber 30, is provided with
First is provided with above in the of 30 rushing 31, second and rushing 32 and the 3rd and rush 33, described first rushes 31, second rushes 32 and the 3rd
The drift being provided with 33 with each Self Matching is rushed, described first rushes 31 is arranged in a vertical direction, and described second rushes 32
33 are rushed with the 3rd being symmetrically arranged and 31 both sides are rushed in first, described first rushes 31 for two volumes, second punching
Road 32 and the 3rd rushes 33 for a volume, and described second rushes 32 and the 3rd rushes 33 in 120 ° of angles, the extrusion chamber
Right angle tapping channel 29 is provided with below 30, and the right angle channel discharging opening 29 is rushed immediately below 31 positioned at first；
Water-cooling system 34 is provided with the outside of the right angle tapping channel 29；
Continuous casting bar when continuous extruder is expressed to cavity, be easy in cavity full of crowded in soft state by copper alloy
Pressure.When cavity full state, first rush in drift move downward（2 volumes）, extruded, at the same time, extruding
Wheel 2 volumes of throat-fed, second rush and the 3rd rush in drift move back 1 volume respectively backward, so as to ensure cavity
All the time full state is in, and makes inserts enter right angle channel, extruded, and cooled down.
When the drift in first rushes moves downward extruding to be completed, now second rush and the 3rd rush in drift
Retreat to top, at the same time start to be extruded downwards, extruding wheel feed 2 volumes blank, first rush in drift to
2 volumes of backed off after random.Due to forming the process of reciprocation cycle, so as to reach the work for realizing that the passages such as long length right angle are continuously extruded
Skill；Second rush and the 3rd rush in drift making a concerted effort of being formed when being extruded, with first rush in drift extruded
Power effect be equivalent.
Embodiment two：
As shown in Fig. 6 ~ Fig. 9, the right angle channel continuous extrusion device includes the second extrusion die 35, second extrusion die
35 include the second extrusion chamber 36, are provided with the second feeding-passage 37 and four up and down on front side of second extrusion chamber 36
Feed pressurization passage 42, is equipped with the drift with each Self Matching, second extrusion chamber 36 in each feed pressurization passage 42
Rear side is provided with center tapping channel 38, second feeding-passage 37 and center tapping channel 38 and the second extrusion chamber 36
On same centrage, four feed pressurization passages 42 are in a certain angle with 36 centrage of the second extrusion chamber, described in
Heart tapping channel 38 includes two sections of before and after, is provided with reverse circulation cooling system 41, center on the outside of 38 leading portion of center tapping channel
38 back segment of tapping channel is provided with the first right angle channel 39 and the second right angle channel 40, and first right angle channel 39 is located at second
On front side of right angle channel 40；
First right angle channel 39 includes the first Vertical Channel 39.1 and first level passage 39.2, second right angle channel
40 include the second Vertical Channel 40.1 and the second horizontal channel 40.2, first Vertical Channel 39.1, first level passage
39.2nd, the second Vertical Channel 40.1 and the second horizontal channel 40.2 are in cross arrangement, the first Vertical Channel 39.1, the first water
The drift with each Self Matching is provided with flat passage 39.2, the second Vertical Channel 40.1 and the second horizontal channel 40.2.
Step 5, Ageing Treatment
Cu-Cr-Zr alloy contact line bar base after continuously extruded using Ageing Treatment device between 400 ~ 500 DEG C Ageing Treatment 3 ~
5 hours, room temperature is cooled to using on-line continuous granulating unit then；
The structure of the Ageing Treatment device is identical with solution strengthening device.
Step 6, cold drawn forming
Contact line bar base continuous to Cu-Cr-Zr alloy carries out multi-pass cold drawing, makes the continuous contact line of Cu-Cr-Zr alloy.
In addition to the implementation, present invention additionally comprises there is other embodiment, all employing equivalents or equivalence replacement
The technical scheme that mode is formed, all should fall within the scope of the hereto appended claims.
Claims (2)
1. a kind of right angle channel continuous extrusion device of here, it is characterised in that：It includes the first extrusion die（27）, described first
Extrusion die（27）Including the first extrusion chamber（30）, first extrusion chamber（30）Front side is provided with the first feeding-passage
（28）, first extrusion chamber（30）Top is provided with first and rushes（31）, second rush（32）Rush with the 3rd（33）, institute
State first to rush（31）, second rush（32）Rush with the 3rd（33）Drift with each Self Matching be inside provided with, described first
Rush（31）It is arranged in a vertical direction, described second rushes（32）Rush with the 3rd（33）It is symmetrically arranged
（31）Both sides, described first rushes（31）For two volumes, described second rushes（32）Rush with the 3rd（33）For a volume,
Described second rushes（32）Rush with the 3rd（33）In 120 ° of angles, the extrusion chamber（30）It is logical that lower section is provided with right angle discharging
Road（29）, the right angle channel discharging opening（29）Rush positioned at first（31）Underface.
2. a kind of right angle channel continuous extrusion device according to claim 1, it is characterised in that：The right angle tapping channel
（29）Outside is provided with water-cooling system（34）.
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| CN201611096233.1A CN106493185B (en) | 2016-12-02 | 2016-12-02 | Right angle channel continuous extrusion device |
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| CN201611096233.1A CN106493185B (en) | 2016-12-02 | 2016-12-02 | Right angle channel continuous extrusion device |
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| CN106493185B CN106493185B (en) | 2018-11-23 |
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Cited By (1)
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| CN108015247A (en) * | 2017-12-28 | 2018-05-11 | 中铁建电气化局集团康远新材料有限公司 | A kind of passage right angle continuous casting continuous extrusion apparatus such as big plasticity and its technique |
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| CN106493185B (en) | 2018-11-23 |
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