CN106755817A - On-line continuous granulating unit - Google Patents

On-line continuous granulating unit Download PDF

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Publication number
CN106755817A
CN106755817A CN201611095819.6A CN201611095819A CN106755817A CN 106755817 A CN106755817 A CN 106755817A CN 201611095819 A CN201611095819 A CN 201611095819A CN 106755817 A CN106755817 A CN 106755817A
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CN
China
Prior art keywords
outer cylinder
cylinder body
channel
water
discharging opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611095819.6A
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Chinese (zh)
Inventor
李学斌
沈华
鲁衍任
赵德胜
杨玉军
车明安
袁远
路超
吴静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Construction Electrification Bureau Group Kangyuan New Material Co Ltd
Original Assignee
China Railway Construction Electrification Bureau Group Kangyuan New Material Co Ltd
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Filing date
Publication date
Application filed by China Railway Construction Electrification Bureau Group Kangyuan New Material Co Ltd filed Critical China Railway Construction Electrification Bureau Group Kangyuan New Material Co Ltd
Priority to CN201611095819.6A priority Critical patent/CN106755817A/en
Publication of CN106755817A publication Critical patent/CN106755817A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62Quenching devices
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/525Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

Abstract

The present invention relates to a kind of on-line continuous granulating unit, it includes the second outer cylinder body(19), second outer cylinder body(19)Upper and lower part is respectively arranged with delivery port(21)And water inlet(20), second outer cylinder body(19)Outside is provided with water-cooling circulating system(22), second outer cylinder body(19)It is internally provided with upper and lower two mesh plates(25), upper and lower two mesh plates(25)Between be provided with the second rotation steel cylinder(26), second outer cylinder body(19)On be provided with second charging aperture(23)With the second discharging opening(24), the second charging aperture(23)Positioned at the second discharging opening(24)Top.The present invention realizes the consecutive production of Cu-Cr-Zr alloy contact line, without being influenceed by body of heater amount of capacity, can 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.

Description

On-line continuous granulating unit
Technical field
The present invention relates to a kind of on-line continuous granulating unit, it is mainly used in long length high-strength high-conductivity copper-chromium-zirconium contact line Consecutive production.
Background technology
With the development of electronic information technology, to the comprehensive performance requirement more and more higher of copper alloy conductive material, It is asked to keep high intensity(Hardness), toughness, wearability while, still keep electric conductivity, thermal conductivity, cold resistance, nothing higher 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 and navigate The important meals material used in the high-tech areas such as sky.Many occasion seldom applications in the form of fine copper, because fine copper Intensity it is relatively low(230~300 MPa)Although can reach 400 more than MPa after cold working, elongation is only 2%, is being added When being used under heat or uniform temperature, its reinforcing effect 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.
Current high-speed electric railway uses Cu-Mg, Cu-Sn alloyed contact line, and such wire rod is to lose conductance 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 has a matching relationship of prominent intensity and conductance, 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 Affinity with zirconium with oxygen under high melt casting condition is extremely strong, the easily voloxidation in melting and casting process, thus, Production difficulty is larger.The method using vacuum melting and casting is generally needed, to reduce oxidation and volatilize, it is ensured that product Finally there is satisfactory chemical composition.However, this kind of mode production cycle is long, due to being the casting of a stove one, length weight and Shape is all restricted, and vacuum production cost is high, yield is small, it is difficult to set up serialization commercial production scale.
The content of the invention
The technical problems to be solved by the invention are directed to above-mentioned prior art and provide a kind of on-line continuous granulating unit, it The consecutive production of Cu-Cr-Zr alloy contact line is realized, without being influenceed by body of heater amount of capacity, random length, symbol can be produced The Cu-Cr-Zr alloy contact line of component requirements is closed, the demand of following Development of High Speed Railway is disclosure satisfy that.
The present invention the used technical scheme that solves the above problems is:A kind of on-line continuous granulating unit, it includes second Outer cylinder body, the second outer cylinder body upper and lower part is respectively arranged with delivery port and water inlet, is set outside second outer cylinder body Water-cooling circulating system is equipped with, the water-cooling circulating system is connected with water inlet and delivery port respectively by pipeline, described Second outer cylinder body is internally provided with upper and lower two mesh plates, and lower two mesh plates are located between water inlet and delivery port, it is described on The second rotation steel cylinder is provided between lower two mesh plates, second charging aperture and the second discharging are provided with second outer cylinder body Mouthful, the second charging aperture and the second discharging opening are located between upper and lower two mesh plates, and the second charging aperture goes out positioned at second Material mouth top.
Compared with prior art, the advantage of the invention is that:
1st, the present invention realizes the consecutive production of Cu-Cr-Zr alloy contact line, without being influenceed 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 by on-line continuous water quenching cooling, may be such that the cooling of copper chromium zirconium bar base can with continual continuous processing, and Make the condition uniformity of cooling, also cause that the effect of bar base cooling is consistent.
Brief description of the drawings
Fig. 1 is using antivacuum in a kind of production technology of long length high-strength high-conductivity copper-chromium-zirconium contact line of the invention The structural representation of smelting apparatus.
Fig. 2 is traditional three bodies stove alloy composition structural representation pockety.
Fig. 3 is strong using solid solution in a kind of production technology of long length high-strength high-conductivity copper-chromium-zirconium contact line of the invention The structural representation that makeup is put.
Fig. 4 is a kind of structural representation of on-line continuous granulating unit of the invention.
Fig. 5 is logical using right angle in a kind of production technology of long length high-strength high-conductivity copper-chromium-zirconium contact line of the invention The structural representation of road continuous extrusion device embodiment 1.
Fig. 6 is logical using right angle in a kind of production technology of long length high-strength high-conductivity copper-chromium-zirconium contact line of the invention The structural representation of road continuous extrusion device embodiment 2.
Fig. 7 is the A-A sectional views of Fig. 6.
Fig. 8 is the B-B sectional views of Fig. 6.
Fig. 9 is the C-C sectional views of 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 gas import 10
Pressure regulator 11
Phosphorate carbon mouthful 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
Delivery port 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
Copper chromium is carried out to standard cathode copper, copper chromium intermediate alloy and copper zirconium intermediate alloy is delivered in non-vacuum melting device in proportion 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, the middle part of the interface channel 4 is provided with graphite mace certainly Even device 5, the graphite mace is from the outside of interface channel 4 of the both sides of even device 5 around being equipped with hot-wire coil 6;
The top of the all-in-one oven 1 is provided with loading channel 7, the loading channel 7 and is provided with feeding device 8, described first The front end of body stove 1 is provided with cover plate 9;
The all-in-one oven 1, the second body stove 2 and the top of the 3rd body stove 3 are provided with argon gas import 10 and pressure regulator 11;
The second body stove 2 and the top of the 3rd body stove 3 are provided with the carbon mouthful 12 that phosphorates;
The top of the 3rd body stove 3 is provided with upper lead conticaster, and the crystallizer 13 of the upper lead conticaster stretches into the 3rd body stove 3 It is interior;
In all-in-one oven, after feeding device adds material, the space above stove liquid(Argon gas room)It is interior full of argon gas, keep air pressure to exist 1.02 pressure-fireds of standard atmospheric pressure, if it exceeds 1.02 standard atmospheric pressures, pressure regulator is automatically releasable gas and automatically adjusts, If air pressure, by the technology, can make stove water and air less than 1.02 pressure-fireds of standard atmospheric pressure, automatic inflating device applying argon gas Isolation, and zirconium does not react with inert gas argon gas, so as to ensure that chromium does not react with zirconium with extraneous gas.Simultaneously Aqueous vapor and other gases blowout the argon gas room on copper coin can be will be attached to.Until copper coin is added completely into all-in-one oven, close Close cover plate.
In 3rd body stove, phosphorate carbon mouthful can plus good phosphorus piece and wooden carbon after close, the purpose of the carbon that phosphorates makes in furnace gas Foreign gas can fully react, 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 in further innovation and the improvement of the basis of existing three bodies stove, because all-in-one oven and the second body stove pass through After electromagnetic agitation, internal alloy composition distribution is still uneven, showing the characteristics of not only disperse but also gather, the alloy of a part The concentration of composition is high, is distributed in jujube core shape many places, and the concentration of a part of alloying component is low, as shown in Figure 2;Cause this jujube core formula The reason for distribution is the i.e. metal bond energy in stove liquid between the metal cation of solvent because the viscosity of alloying furnace liquid solvent is big Height, the resistance of the diffusion of alloy elements of addition is big, and alloying element is not easy uniform diffusion, just as adding sesame in oil, though So by stirring, but still can not uniformly spread, it is different from soluble in water uniformly the diffusion like that of sodium chloride and forms the molten of stabilization Liquid.For solve the problems, such as alloying element uniformly spread, using stove water by the second body stove and the 3rd body stove interface channel when, increasing Plus the vortex that hot-wire coil is produced is sufficiently stirred for, and by graphite mace from even device when, because graphite mace is from even Under multiple spines effect on device, the alloying element stove water of jujube core 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 the inwall of the first outer cylinder body 14 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 part of cylinder 14 is respectively arranged with the discharging opening 18 of first charging aperture 17 and first;
The top of first outer cylinder body 14 is additionally provided with argon gas 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 uses bell-type electromagnetic heater, and unsuitable electricity consumption hinders 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 heat transfer by gas, and as protection gas Argon gas heat transfer property it is extremely low so that heating effect extreme difference;
During another advantage of bell-type electromagnetic heater is heat treatment process, temperature can be controlled in certain limit, but by It is stronger in the heat conduction of air, cross-ventilation can be formed, so as to cause heat skewness, so as to cause to be heated element heating It is 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 protruding), and the surrounding that device heating can be in heating element heater is utilized, along with the copper alloy on steel cylinder casts bar not Stop rotation, copper alloy bar can be made uniformly to heat;
Make protection gas additionally, due to using argon gas, because the thermal conductivity of argon gas is low, can greatly reduce the convection current due to gas The heat skewness weighing apparatus phenomenon of generation, so as to 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 include the second outer cylinder body 19, the top of the second outer cylinder body 19 and Bottom is respectively arranged with delivery port 21 and water inlet 20, and water-cooling circulating system 22 is provided with outside second outer cylinder body 19, The water-cooling circulating system 22 is connected with water inlet 20 and delivery port 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 delivery port 21, described The second rotation steel cylinder 26 is provided between upper and lower two mesh plates 25, second charging aperture 23 is provided with second outer cylinder body 19 With the second discharging opening 24, the discharging opening 24 of the second charging aperture 23 and second is located between upper and lower two mesh plates 25, and described the Two charging apertures 23 are located at the top of the second discharging opening 24;
Continuous uniform water cooling, if not using 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 equal Even cooling so that copper copper chromium zirconium inside group even structure.
Step 4, right angle channel are continuously extruded
Continuously extruded treatment 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 the first extrusion die 27, first extrusion die 27 is wrapped The first extrusion chamber 30 is included, the front side of first extrusion chamber 30 is provided with the first feeding-passage 28, first extrusion chamber 30 tops are provided with first and rush 31, second and rush 32 and the 3rd and rush 33, and 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 being rushed with the 3rd and being symmetrically arranged and rush 31 both sides 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 30 lower sections are provided with right angle tapping channel 29, and the right angle channel discharging opening 29 is rushed immediately below 31 positioned at first;
The outside of the right angle tapping channel 29 is provided with water-cooling system 34;
When continuous casting bar is expressed to cavity by continuous extruder, copper alloy is in soft state, is easy in cavity full of crowded 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 inserts is entered 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 charging 2 blanks of volume, 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 The effect of power 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, and the front side of second extrusion chamber 36 is provided with the second feeding-passage 37 and four up and down The drift with each Self Matching, second extrusion chamber 36 are equipped with feed pressurization passage 42, each feed pressurization passage 42 Rear side is provided with center tapping channel 38, second feeding-passage 37 and 38 and second extrusion chamber of center tapping channel 36 In on same center line, four feed pressurization passages 42 are in a certain angle with the center line of the second extrusion chamber 36, it is described in Two sections including before and after, the leading portion of center tapping channel 38 outside is provided with reverse circulation cooling system 41, center to heart tapping channel 38 The back segment of tapping channel 38 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 The 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 then cooled to using on-line continuous granulating unit;
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, is made the continuous contact line of Cu-Cr-Zr alloy.
In addition to the implementation, present invention additionally comprises having other embodiment, all use equivalents or equivalence replacement The technical scheme that mode is formed, all should fall within the scope of the hereto appended claims.

Claims (1)

1. a kind of on-line continuous granulating unit, it is characterised in that:It includes the second outer cylinder body(19), second outer cylinder body(19) Upper and lower part is respectively arranged with delivery port(21)And water inlet(20), second outer cylinder body(19)Outside is provided with water cooling The circulatory system(22), the water-cooling circulating system(22)By pipeline respectively with water inlet(20)And delivery port(21)It is connected Connect, second outer cylinder body(19)It is internally provided with upper and lower two mesh plates(25), upper and lower two mesh plates(25)It is located at Water inlet(20)And delivery port(21)Between, upper and lower two mesh plates(25)Between be provided with the second rotation steel cylinder(26), Second outer cylinder body(19)On be provided with second charging aperture(23)With the second discharging opening(24), the second charging aperture(23)With Second discharging opening(24)Positioned at upper and lower two mesh plates(25)Between, the second charging aperture(23)Positioned at the second discharging opening(24) Top.
CN201611095819.6A 2016-12-02 2016-12-02 On-line continuous granulating unit Pending CN106755817A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
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CN203768414U (en) * 2014-03-17 2014-08-13 安徽龙杨铜业有限公司 Pre-cooling device for annealing and softening copper wire
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Application publication date: 20170531