CN106984782A - A kind of pulse current aids in many metal composite pipe horizontal continuous casting apparatus - Google Patents
A kind of pulse current aids in many metal composite pipe horizontal continuous casting apparatus Download PDFInfo
- Publication number
- CN106984782A CN106984782A CN201710239262.7A CN201710239262A CN106984782A CN 106984782 A CN106984782 A CN 106984782A CN 201710239262 A CN201710239262 A CN 201710239262A CN 106984782 A CN106984782 A CN 106984782A
- Authority
- CN
- China
- Prior art keywords
- pulse current
- graphite
- casting
- metal
- layer metal
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
- B22D11/143—Plants for continuous casting for horizontal casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
A kind of pulse current aids in many metal composite pipe horizontal continuous casting apparatus, and the device includes pulse current loop component, casting component and cooling component.Wherein pulse current loop component includes：Power supply, switch, multi-step graphite centre rod, motor A, B and pulse current input mechanism, pulse current input mechanism include：Conducting rod, graphite block, rotary shaft and oblique milling roller；Casting component includes outer layer graphite jig, many metal level pipes, outer layer metal, middle layer metal and inner layer metal channel induction furnace and haulage gear；Cooling component includes：Outer cooling ring, in cold ring and interior cold ring.The present invention refines faying face crystal grain, improves its intensity by applying pulse current；Metal bath respectively uses independent cooling and casting system, adjusts its casting and cooling system temperature respectively for respective property, quality of tube blank steel is improved in the metallurgical binding face got well.
Description
Technical field
The present invention relates to a kind of many metal level pipe casting devices.
Background technology
Many metal level multiple tubes are formed by various metals Material cladding, and certain side is passed through between each layer metal in tube wall
Formula is combined into an entirety as deformed and closely connecting.Many metal level pipelines are because with multiple layer metal, merged a variety of gold
Belong to the advantage of material, be a kind of new structure and functional material, it is in terms of intensity, hardness and corrosion resistance compared to common
Seamless steel pipe there is obvious advantage, with excellent combination property and economic benefit.In recent years, have started to part and substitute biography
System high-alloy seamless steel pipe, is widely used in the industries such as oil, chemical industry, electric power, ocean engineering, especially oil gas field, ocean
The strong corrosive environments such as platform steeply rise to the demand of many metal level multiple tubes.
Multiple tube is because with obvious economic advantages and excellent combination property, since nineteen sixty, in world wide
The research to it is all paid much attention to, the technology manufacture level of many metal level multiple tubes of current Countries has been gradually improved,
In level advanced in the world, wherein with Britain, the U.S., based on Japan and other countries, because China is in the research field of multiple tube
Starting is relatively later, at present also in inferior position in comprehensive strength.
The manufacturing technique method of current many metal level multiple tubes is a lot, and continuous casting process is used as a kind of new shaping work
Skill, because between each metal level directly in conjunction with, it is to avoid the formation of interface oxide layer, each metal level combination interface can be directly realized by
Metallurgical binding, while there is the advantages of mass, automation and serialization to be widely used in actual production for it.
But certain defect is usually present at metallurgical bonding interface, such as faying face coarse grains, bond strength is poor, metal bath knot
Close uneven etc., these defects have impact on the quality and performance of pipe to a certain extent, it is impossible to meet the production requirement of industry,
Mesh first two metal composite pipe blank is relatively conventional, and the composition metal pipe of the metal material casting of three kinds and the above is rare, with
The need for industrial production, many metal composite pipe blanks of various metals Material cladding together are generally required.
The content of the invention
It is an object of the invention to can improve many metal level composite pipe blank metal combination surface intensities and quality in offer one kind
Pulse current aid in many metal composite pipe horizontal continuous casting apparatus.
The invention mainly comprises pulse current loop component, casting component and cooling component.Pulse current loop component master
Including：Power supply, switch, multi-step graphite centre rod, motor A, B and pulse current input mechanism, pulse current input mechanism is again
Including：Conducting rod, graphite block, rotary shaft and oblique milling roller；Casting component mainly include outer layer graphite jig, many metal level pipes,
Outer layer metal, middle layer metal and inner layer metal channel induction furnace and haulage gear；Cooling component mainly includes：Outer cooling ring, in
Cold ring and interior cold ring.
Wherein, the power supply of the pulse current loop component of exportable pulse current is connected with switch, is parallel with the switch
Two lines road, and two conducting rods of parallel connection are equipped with every circuit, each conducting rod is respectively connected in a graphite block
Together, and the curved surface of the graphite block free end and surface of rotary shaft is corresponding is in close contact both, the rotary shaft of the level
One end is fixed in oblique milling roller and both are coaxial, and the oblique milling roller outer surface is corresponding and tight therewith with the outer surface of many metal level pipes
Contiguity is touched.The rotary shaft is corresponding with oblique milling roller to be installed, i.e. company on the other end and motor A output shafts of two rotary shafts in left side
Fitting is connected, and then two oblique milling rollers of left side are rotated by two, left side of motor A drivings rotary shaft respectively, similarly two rotary shafts in right side
The other end be connected with the connector on motor B output shafts, then right side two oblique milling rollers respectively by motor B driving right side two
Rotary shaft is rotated, and oblique milling roller presses to each metal level tube wall while driving many metal level pipes to move horizontally, makes metallurgical junction
Conjunction face is preferably combined together.The conducting rod, graphite block, rotary shaft and oblique milling roller constitute pulse current input mechanism,
Four groups altogether of the pulse current input mechanism, is divided into two pairs of left and right, and each pair is symmetrical above and below to be installed.In four group pulses electric current input
Provided with a multi-step graphite centre rod between mechanism, the boss in the middle part of the larger diameter end of the multi-step graphite centre rod is placed in non-conductive
In supporting object and be secured to connection, it is positioned, two and multi-step graphite core mandrel are respectively set on each step
The parallel axial round tube hole of line, two round tube holes be located on the center line of step inside and outside circle and using plug axis be symmetrical, so as to gold
Category liquid is injected in the cavity that each step and tube wall are constituted by round tube hole respectively.Switch connection, pulse current is passed through conducting rod
Pass graphite block, rotary shaft passed to through graphite block, after pass to oblique milling roller by rotary shaft, pulse current passes through pulse current
The metallurgical binding face of many metal level pipes is passed through after input unit, pulse current flows back to power supply through multi-step graphite core and born afterwards
Pole, so as to form closed-loop path.
Casting component is provided with outer layer graphite jig and two sets of outer layer metals, middle levels in multi-step graphite centre rod major diameter side
Metal and inner layer metal channel induction furnace, wherein, it is enclosed on the annular outer layer graphite jig outside multi-step graphite centre rod outer peripheral face
A part is located in outer layer metal channel induction furnace, and installation site is parallel with multi-step graphite centre rod, itself and multi-step graphite core
The interval of rod is the casting thickness of the outermost metal of many metal level pipes, and each shoulder height of multi-step graphite centre rod is
Each metal layer thickness of many metal level pipes of corresponding casting.Inner layer metal channel induction furnace is provided with and multi-step graphite centre rod
The corresponding interior drain pipe of round tube hole on most the inside step, middle drain pipe set by middle layer metal channel induction furnace then with multi-step
Round tube hole correspondence on the graphite centre rod most adjacent middle level step of the inside step.The Casting Roller of haulage gear is respectively provided at and multilayer
The corresponding position of metal pipe billet upper and lower surface and symmetrical, the Casting Roller is connected with motor C, and motor C can drive Casting Roller to turn
Dynamic, then Casting Roller just pulls out the multiple layer metal pipe of shaping from casting system, while realizing horizontal casting, to each layer
Metal pipe-wall presses, and metallurgical binding face is preferably combined together.
It is respectively to set a water inlet and a delivery port on 3 hollow annulus, each annulus to cool down component, 3 circles
One, ring is located on the outer peripheral face of outer layer graphite jig i.e. outer cooling ring, and two other annulus is located on outer layer metal tube wall, its position
In the middle part of the outer layer metal tube wall be in cold ring, what it was located at multi-step graphite centre rod minor diameter one end is interior cold ring.
The present invention the course of work approximately as：After installation, one allowed first in outer layer metal channel induction furnace
Number metal liquid enters the cavity that multi-step graphite centre rod and outer layer graphite jig are constituted, and forms many by outer cooling ring crystallisation by cooling
The outer layer metal tube wall 13 of metal level pipe, by the driving of oblique milling roller and Casting Roller, many metal level pipes travel forward, then
No. two metal liquids allowed in middle layer metal channel induction furnace flow into outer layer metal tube wall and multi-step graphite core by cylindrical hole
The cavity that the step of rod is constituted, cold ring crystallisation by cooling forms the middle layer metal tube wall 14 of many metal level pipes, many metals in
Layer pipe moves forward, and No. three metal liquids then allowed in inner layer metal channel induction furnace enter middle level by cylindrical hole
The cavity that metal pipe-wall and multi-step graphite centre rod step are constituted, by interior cold ring crystallisation by cooling formation inner layer metal tube wall 15,
In whole casting process, by switching on and off to realize the input of pulse current for controlling switch, then cast by control
Flow, oblique roll rotational speed, Casting Roller rotating speed and outer cooling ring, in cold ring and interior cold ring cooling water flow parameters, make each metallurgy
Faying face reaches satisfied combination effect.
The present invention has the following advantages that compared with prior art：
1st, optimize metal solidification texture by applying pulse current in the casting process of many metal level composite pipe blanks, make
The crystal grain for obtaining metallurgical binding face is refined, and the bond strength of metal material is improved, so as to improve the quality of pipe.
2nd, inner, middle and outer layer metal bath each uses independent cooling system and casting system, can be directed to different metal
The property of material adjusts its casting system temperature and the temperature of cooling system respectively, so that good metallurgical binding face is obtained, this
Largely be conducive to improving the quality of many metal level composite pipe blanks.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the impulse circuit structural representation of the present invention；
Fig. 3 is the volume rendering view of many metal level pipes of the invention.
In figure：1. switch, 2 power supplys, 3. motor A, 4. inner layer metal channel induction furnaces, 5. rotary shafts, 6. middle layer metals have
Core induction furnace, 7. outer layer metal channel induction furnaces, 8. graphite blocks, 9. conducting rods, 10. oblique milling rollers, 11. motor C, 12. Casting Rollers,
13. outer layer metal tube wall, 14. middle layer metal tube walls, 15. inner layer metal tube walls, 16. motor B, metal level pipe more than 17., 18.
Multi-step graphite centre rod, cold ring in 19., cold ring, 21. outer cooling rings, 22. outer layer graphite jigs, 23, non-conductive support thing in 20.
Body, the pulse current input mechanism of 24. metallurgical binding face 1,25,26. metallurgical binding faces 2.
Embodiment
In the structural representation that the pulse current shown in Fig. 1 aids in many metal composite pipe horizontal continuous casting apparatus, pulse electricity
The power supply 2 for flowing circuit assemblies is connected with switch 1, and two lines road is parallel with the switch, and is equipped with parallel connection on every circuit
Two conducting rods 9, each conducting rod respectively connects together with a graphite block solid 8, and the curved surface of graphite block free end and turns
The surface correspondence of moving axis 5 is in close contact both, and rotary shaft one end of the level is fixed in oblique milling roller 10 and both are coaxial,
The oblique milling roller outer surface and the outer surface of many metal level pipes are corresponding and intimate contact therewith.The rotary shaft is corresponding with oblique milling roller
Install, i.e. the other end of two rotary shafts in left side is connected with the connector on motor A3 output shafts, similarly two rotary shafts in right side
The other end be connected with the connector on motor B16 output shafts, the conducting rod, graphite block, rotary shaft and oblique milling roller are constituted
Pulse current input mechanism, four groups altogether of pulse current input mechanism is divided into two pairs of left and right, and each pair is symmetrical above and below to be installed.
Provided with a multi-step graphite centre rod 18, the larger diameter end of the multi-step graphite centre rod between the four group pulses electric current input mechanism
The boss at middle part is placed on non-conductive support object 23 and is secured to connection, and two and multi-step stone are respectively set on each step
The axial round tube hole of black plug diameter parallel, two round tube hole be located on the center line of step inside and outside circle and using plug axis as pair
Claim.
Casting component has in multi-step graphite centre rod major diameter side provided with outer layer graphite jig 22 and two sets of outer layer metals
Core induction furnace 7, middle layer metal channel induction furnace 6 and inner layer metal channel induction furnace 4, wherein, it is enclosed on outside multi-step graphite centre rod
An annular outer layer graphite jig part outside side face is located in outer layer metal channel induction furnace, installation site and multi-step graphite
Plug is parallel, and the interval of itself and multi-step graphite centre rod is the casting thickness of the outermost metal level of many metal level pipes 17, many
Each shoulder height of step graphite centre rod is each metal layer thickness of many metal level pipes of corresponding casting.Inner layer metal has
Core induction furnace is provided with interior drain pipe corresponding with round tube hole on multi-step graphite centre rod most the inside step, and middle layer metal has core sensing
The round tube hole of middle drain pipe set by stove then on the middle level step adjacent with multi-step graphite centre rod most the inside step is corresponding.Lead
The Casting Roller 12 for drawing mechanism is respectively provided at position corresponding with multiple layer metal pipe upper and lower surface and symmetrical, the Casting Roller with
Motor C11 is connected.
It is respectively to set a water inlet and a delivery port on 3 hollow annulus, each annulus to cool down component, 3 circles
One, ring is located on the outer peripheral face of outer layer graphite jig i.e. outer cooling ring 21, and two other annulus is located on outer layer metal tube wall, its
In the middle part of outer layer metal tube wall be in cold ring 20, its be located at multi-step graphite centre rod minor diameter one end be interior cold ring 19.
Embodiment above is only that the preferred embodiment of the present invention is described, and not the scope of the present invention is entered
Row is limited, and on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art do to technical scheme
In the various modifications gone out and improvement, the protection domain that claims of the present invention determination all should be fallen into.
Claims (4)
1. a kind of pulse current aids in many metal composite pipe horizontal continuous casting apparatus, it is characterised in that：The device includes pulse current
Circuit assemblies, casting component and cooling component, wherein pulse current loop component include：Power supply, switch, multi-step graphite core
Rod, motor A, B and pulse current input mechanism, pulse current input mechanism include：Conducting rod, graphite block, rotary shaft and oblique milling
Roller；Casting component, which includes outer layer graphite jig, many metal level pipes, outer layer metal, middle layer metal and inner layer metal, core sensing
Stove and haulage gear；Cooling component includes：Outer cooling ring, in cold ring and interior cold ring.
2. pulse current according to claim 1 aids in many metal composite pipe horizontal continuous casting apparatus, it is characterised in that：Pulse
The power supply of current loop component is connected with switch, and two lines road is parallel with the switch, and is equipped with parallel connection on every circuit
Two conducting rods, each conducting rod is respectively fixed together with a graphite block, and curved surface and the rotation of graphite block free end
The surface correspondence of axle is in close contact both, and rotary shaft one end of the level is fixed in oblique milling roller and both are coaxial, and this is oblique
Roll outer surface and the outer surface of many metal level pipes are corresponding and intimate contact therewith, rotary shaft peace corresponding with oblique milling roller
Dress, the i.e. other end of two rotary shafts in left side is connected with the connector on motor A output shafts, and similarly two, right side rotary shaft is another
One end is connected with the connector on motor B output shafts, and the conducting rod, graphite block, rotary shaft and oblique milling roller constitute pulse electricity
Input mechanism is flowed, four groups altogether of the pulse current input mechanism is divided into two pairs of left and right, and each pair is symmetrical above and below to be installed, at this four groups
It is convex in the middle part of the larger diameter end of the multi-step graphite centre rod provided with a multi-step graphite centre rod between pulse current input mechanism
Platform is placed on non-conductive support object and is secured to connection, and two and multi-step graphite centre rod axis are respectively set on each step
Parallel axial round tube hole, two round tube holes be located on the center line of step inside and outside circle and using plug axis be symmetrical.
3. pulse current according to claim 1 aids in many metal composite pipe horizontal continuous casting apparatus, it is characterised in that：Casting
Component is golden provided with outer layer graphite jig and two sets outer layer metals, middle layer metal and internal layer in multi-step graphite centre rod major diameter side
Belong to channel induction furnace, wherein, the annular outer layer graphite jig part being enclosed on outside multi-step graphite centre rod outer peripheral face is located at outer
In layer metal channel induction furnace, installation site is parallel with multi-step graphite centre rod, and the interval of itself and multi-step graphite centre rod is
The casting thickness of the outermost metal of many metal level pipes, each shoulder height of multi-step graphite centre rod is corresponding casting
Each metal layer thickness of many metal level pipes, inner layer metal channel induction furnace be provided with multi-step graphite centre rod most the inside step on
The corresponding interior drain pipe of round tube hole, middle drain pipe set by middle layer metal channel induction furnace then with multi-step graphite centre rod most in
Round tube hole correspondence on the adjacent middle level step of face step；The Casting Roller of haulage gear be respectively provided at above and below multiple layer metal pipe
The corresponding position in surface and symmetrical, the Casting Roller is connected with motor C.
4. pulse current according to claim 1 aids in many metal composite pipe horizontal continuous casting apparatus, it is characterised in that：Cooling
Component is respectively to set a water inlet and a delivery port on 3 hollow annulus, each annulus, and 3 annulus one are located at outer
It is outer cooling ring on the outer peripheral face of layer graphite jig, two other annulus is located on outer layer metal tube wall, and it is located at outer layer metal tube
In the middle part of wall be in cold ring, its be located at multi-step graphite centre rod minor diameter one end be interior cold ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239262.7A CN106984782B (en) | 2017-04-13 | 2017-04-13 | A kind of more metal composite pipe horizontal continuous casting apparatus of pulse current auxiliary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239262.7A CN106984782B (en) | 2017-04-13 | 2017-04-13 | A kind of more metal composite pipe horizontal continuous casting apparatus of pulse current auxiliary |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106984782A true CN106984782A (en) | 2017-07-28 |
| CN106984782B CN106984782B (en) | 2019-05-28 |
Family
ID=59415171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710239262.7A Active CN106984782B (en) | 2017-04-13 | 2017-04-13 | A kind of more metal composite pipe horizontal continuous casting apparatus of pulse current auxiliary |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106984782B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111974962A (en) * | 2019-09-19 | 2020-11-24 | 北京科技大学 | Surface-enhanced gradient composite material casting equipment and method |
| CN112008053A (en) * | 2020-08-27 | 2020-12-01 | 燕山大学 | Preparation device of alloy and current application method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1225690A1 (en) * | 1984-11-21 | 1986-04-23 | Витебский технологический институт легкой промышленности | Apparatus for making laminated tubular articles of powders by extrusion |
| CN1229703A (en) * | 1998-03-20 | 1999-09-29 | 北京科技大学 | One-step cast shaping appts. and tech. for multi-layer composite material |
| CN1456403A (en) * | 2002-05-10 | 2003-11-19 | 上海上大众鑫科技发展有限公司 | Horizontal copper pipe base continuous casting electromagnetic crystallizer |
| CN101185965A (en) * | 2007-12-21 | 2008-05-28 | 金龙精密铜管集团股份有限公司 | Method for manufacturing metal composite pipe blank and device for manufacturing metal composite pipe blank |
| CN102211175A (en) * | 2011-05-24 | 2011-10-12 | 大连理工大学 | Horizontal electromagnetic continuous casting device and method of multiple-layer tube blank |
| CN102527998A (en) * | 2012-02-13 | 2012-07-04 | 金龙精密铜管集团股份有限公司 | Preparation method and device for dual-metal multi-layer pipeline |
| CN105499304A (en) * | 2015-12-08 | 2016-04-20 | 昆明理工大学 | Semi-solid forming method of composite pipe |
| CN105543745A (en) * | 2015-12-18 | 2016-05-04 | 燕山大学 | Device for conducting medium frequency induction heating treatment on copper pipe with assistance of pulse currents |
| CN105834243A (en) * | 2016-03-29 | 2016-08-10 | 燕山大学 | Pulse current auxiliary inner grooved copper tube forming device |
-
2017
- 2017-04-13 CN CN201710239262.7A patent/CN106984782B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1225690A1 (en) * | 1984-11-21 | 1986-04-23 | Витебский технологический институт легкой промышленности | Apparatus for making laminated tubular articles of powders by extrusion |
| CN1229703A (en) * | 1998-03-20 | 1999-09-29 | 北京科技大学 | One-step cast shaping appts. and tech. for multi-layer composite material |
| CN1456403A (en) * | 2002-05-10 | 2003-11-19 | 上海上大众鑫科技发展有限公司 | Horizontal copper pipe base continuous casting electromagnetic crystallizer |
| CN101185965A (en) * | 2007-12-21 | 2008-05-28 | 金龙精密铜管集团股份有限公司 | Method for manufacturing metal composite pipe blank and device for manufacturing metal composite pipe blank |
| CN102211175A (en) * | 2011-05-24 | 2011-10-12 | 大连理工大学 | Horizontal electromagnetic continuous casting device and method of multiple-layer tube blank |
| CN102527998A (en) * | 2012-02-13 | 2012-07-04 | 金龙精密铜管集团股份有限公司 | Preparation method and device for dual-metal multi-layer pipeline |
| CN105499304A (en) * | 2015-12-08 | 2016-04-20 | 昆明理工大学 | Semi-solid forming method of composite pipe |
| CN105543745A (en) * | 2015-12-18 | 2016-05-04 | 燕山大学 | Device for conducting medium frequency induction heating treatment on copper pipe with assistance of pulse currents |
| CN105834243A (en) * | 2016-03-29 | 2016-08-10 | 燕山大学 | Pulse current auxiliary inner grooved copper tube forming device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111974962A (en) * | 2019-09-19 | 2020-11-24 | 北京科技大学 | Surface-enhanced gradient composite material casting equipment and method |
| CN111974962B (en) * | 2019-09-19 | 2022-02-22 | 北京科技大学 | Surface-enhanced gradient composite material casting equipment and method |
| CN112008053A (en) * | 2020-08-27 | 2020-12-01 | 燕山大学 | Preparation device of alloy and current application method |
| CN112008053B (en) * | 2020-08-27 | 2021-09-17 | 燕山大学 | Preparation device of alloy and current application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106984782B (en) | 2019-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102240860B (en) | Method and equipment for manufacturing gradient material mould | |
| CN102240861B (en) | Method and equipment for manufacturing gradient functional structure | |
| CN102825067B (en) | Method for producing bimetal composite material by adopting cold core continuous casting and rolling process | |
| CN103481033B (en) | Manufacturing method for double-metal seamless steel pipe through machining, assembling and extruding | |
| CN105170947B (en) | A kind of preparation method of more than two layers metal composite pipe blank | |
| CN102128312A (en) | Taper pipe for concrete pumping device and manufacturing method thereof | |
| CN104384470B (en) | A kind of manufacturing process of bimetallic composite ring | |
| CN105149556A (en) | Solid-liquid composite cast rolling machine for dual-metal-layer composite pipe | |
| CN205949478U (en) | High -speed steel composite roll | |
| CN106984782A (en) | A kind of pulse current aids in many metal composite pipe horizontal continuous casting apparatus | |
| CN104325098B (en) | A kind of cast iron horizontal continuous-casting Double-water jacket type crystallizer | |
| CN105499304A (en) | Semi-solid forming method of composite pipe | |
| CN201105315Y (en) | Device for horizontal continuous casting of cast-iron pipe profile | |
| CN104384859A (en) | Production method for nickel base alloy N06625 composite seamless steel pipe | |
| CN101745725A (en) | Electromagnetic direct-drive high-speed three-wire magnetic-field compound flux copper-gasket submerged arc welding device and method thereof | |
| CN103599942A (en) | Roll cooling method for rolling of composite metal and special cooling device | |
| CN204509396U (en) | Hanging arm roll in a kind of stove | |
| CN102179637A (en) | Manufacturing method and equipment of unequal-section bimetal transmission part | |
| CN100457354C (en) | Pile-up welding method of turbine low pressure heater pipe plate and shell, water chamber junction | |
| CN204094301U (en) | Copper pipe and device for welding aluminium pipe plumb joint in refrigeration plant | |
| CN106624614B (en) | A kind of manufacturing process of the high-strength welded tube of heavy caliber thick wall | |
| CN110523980B (en) | Electrofusion additive manufacturing method for tee pipe fitting | |
| CN102581587A (en) | Method for manufacturing high-efficiency diamond geological drills | |
| CN107313724A (en) | A kind of metallurgy type is combined oil well pipe and its manufacture method | |
| CN104772603B (en) | Forming process method for eccentric aluminum alloy reducing tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200702 Address after: 2037, floor 2, maker building, 3S innovation and entrepreneurship community, No. 888, Hengyuan West Road, Baoding City, Hebei Province, 071000 Patentee after: Hebei yinzhitong Information Technology Co.,Ltd. Address before: Hebei Street West Harbor area, 066004 Hebei city of Qinhuangdao province No. 438 Patentee before: Yanshan University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201117 Address after: 215427, Jiangsu City, Suzhou province Taicang Jing Jing Town Yongle Village Patentee after: JIANGSU RUNFU MECHANICAL ROLL MANUFACTURING Co.,Ltd. Address before: 2037, floor 2, maker building, 3S innovation and entrepreneurship community, No. 888, Hengyuan West Road, Baoding City, Hebei Province, 071000 Patentee before: Hebei yinzhitong Information Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |