CN87213174U - Crystallizer for continuous casting metallic pipe using upward guide method - Google Patents
Crystallizer for continuous casting metallic pipe using upward guide method Download PDFInfo
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- CN87213174U CN87213174U CN 87213174 CN87213174U CN87213174U CN 87213174 U CN87213174 U CN 87213174U CN 87213174 CN87213174 CN 87213174 CN 87213174 U CN87213174 U CN 87213174U CN 87213174 U CN87213174 U CN 87213174U
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Abstract
The utility model relates to a crystallizer for casting metallic pipe using upward guide method and the method for producing copper pipes. The crystallizer is provided with a graphite mould which comprises a mould body and a mould core. The cross section of a gap between the mould body and the mould core is the same as the cross section of a pipe which is to cast using the upward guide method, and the gap is communicated with the outside by a set of holes. The crystallizer is immersed in melting copper liquid. The copper liquid is put into the crystallizer by a vacuum-pumping or the head of liquid method, is cooled by chilled water, and then a continuous casting copper pipe is guided out by a guide rod. The crystallizer and method is used, which can guide and cast the metal pipes of infinite lengths, and can also guide and cast deformed pipes. The copper pipes which are guided and cast have no oxide skins, and has high electric conductivity.
Description
The utility model relates to continuous casting of metal, i.e. the equipment and the technology of the casting do not limit of product length relate more particularly to use and draws equipment and the technology that the method for casting out is produced metal tube continuously.
Up-drawing method is produced the metal pole stock continuously, the current production of copper bar that is mainly used at home, be a kind ofly to develop in recent years than advanced production method faster, its advantage is that investment is little, floor space is few, die exchange is simple, produce flexibly, this method is adopted by cable factory and Copper Material Factory widely, but this at home method is not used to produce tubing.
Prior art is produced the method for metal seamless tubing, and the method for for example producing copper pipe generally with copper ingot extruding perforation, is made pipe, then through repeatedly being drawn into product, and this processing method, raw material are also wasted in time-consuming power consumption.
Chinese patent application numbers 85103853 has proposed a kind of method, equipment of continuous metal tube casting, proposition have at least one extension on transfer to become the drop-down liquid metal of situation in the magnetic suspension field of force and an auxiliary Electromagnetic Control field of force, tubulose liquid metal product after solidifying is pulled out from the top in magnetic field, and cooling also further is processed into desired end product.But this method needs complex apparatus and technology, for general medium-sized and small enterprises can not be born.
The purpose of this utility model is the crystallizer of a kind of energy of design continuous casting of metals pipe.
Another purpose of the present utility model is the crystallizer of a kind of energy of design continuous casting copper pipes.
Another purpose of the present utility model is the crystallizer that a kind of energy of design continuous casting has the metal tube of various cross sectional shapes.
Another purpose of the present utility model is to propose a kind of process of using above-mentioned crystallizer to produce copper pipe.
The utility model is to realize by such design.
One metal tube crystallizer, comprise that one has cooling jacket and the crystallization parts interface that can communicate with vacuum source, described crystallization parts are made up of the conductor that conducts heat, combine closely graphite mo(u)ld and described crystallization part detachable, described graphite mo(u)ld has a cavity, one of cavity communicates with crystallizer in the crystallizer, the other end becomes enclosed construction, blind end stretches out in the chamber between a core rod and the chamber wall and forms the space, the cross sectional shape in described space is identical with the cross section of the metal tube of desiring continuous casting, have one group of hole that described space is communicated with the external world on the wall of graphite cavity near blind end, described graphite mo(u)ld and crystallizer are outer can also to be coated with jacket.
A kind of continuous metal cast process of copper pipe, with electric furnace with copper fusing and be heated to 1140 ℃-1160 ℃, at the topped air isolation layer in copper liquid surface, above-mentioned crystallizer is inserted in the copper liquid of fusing, in crystallizer, vacuumize or utilize copper liquid level official post copper liquid in crystallizer, to rise, continuously copper pipe is drawn by draw-gear after bar is drawn hollow copper tubing with drawing, the flow of regulating jacket water makes the temperature of the copper pipe of drawing between 80 ℃-150 ℃ again.
The utility model has the advantages that significantly.Adopt apparatus and method of the present utility model directly seamless hollow copper tubing of continuous casting and various seamless metal heterotype tubing from molten metal, its length can infinitely prolong as required, removed from the past traditional like this with ingot heating, perforation, again by drawing die drawing repeatedly, middle very complicated technology such as also will anneal has been saved a large amount of energy and metal material.So just reduce the cost of metal pipe material very significantly, its economic worth is very valuable.The equipment of equipment of the present utility model and prior art is compared, and is fairly simple, can utilize the crystallizer of original continuous casting copper bar, mixes graphite mo(u)ld of the present utility model, helps small investment, goes up detective, and the transformation of used equipment is upgraded.The copper pipe surface of using this practical utility model to produce is highly polished, and is non-oxidation layer copper pipe, and product conductance height more is applicable to electric product than the copper pipe of drawing.The product that adopts equipment of the present utility model and explained hereafter through initial estimate is than reducing production costs about about 25% with traditional apparatus and process production.
Fig. 1 is a metal tube structure of mould view of the present utility model, and the part has been done to dissect.
Fig. 2 is the structure cutaway view of the graphite mo(u)ld of metal tube crystallizer shown in Figure 1.
Fig. 3 is that graphite mo(u)ld shown in Figure 2 is along A-A line side cross sectional view.
Fig. 4 is the cutaway view that graphite mo(u)ld shown in Figure 2 has the variation of spiral marking connection structure.
Fig. 5 is the structure cutaway view of the another variation of graphite mo(u)ld of metallic crystal device shown in Figure 1.
Fig. 6 is a graphite mo(u)ld shown in Figure 5, along B-B line side cross sectional view.
Fig. 7 is the structure cutaway view of the another variation of graphite mo(u)ld of metallic crystal device shown in Figure 1.
Fig. 8 is that graphite mo(u)ld shown in Figure 7 is along C-C line side cross sectional view.
Fig. 9 is the flow sheet that the utility model up-drawing method is produced copper pipe.
Be described in detail several embodiment of the present utility model referring now to accompanying drawing, will help understanding of the present utility model by narration, but not limit scope of the present utility model.
As shown in Figure 1, metal tube crystallizer of the present utility model has crystallization parts ［ 4 ］, and it has cylindrical shell ［ 5 ］, and the crystallizer ［ 6 ］ at a strip center is arranged in the cylindrical shell, and its endoporus section shape is identical with the peripheral shape in the cross section of the metal tube of desiring continuous casting.Form water jacket between cylindrical shell ［ 5 ］ and the crystallizer ［ 6 ］.Sealing between one of cylindrical shell ［ 5 ］ and the crystallizer ［ 6 ］, the other end of cylindrical shell ［ 5 ］ forms the shoulder ［ 10 ］ with helicitic texture.Mould bearing ［ 11 ］ thread connection with female thread structure is on the external screw thread convex shoulder ［ 10 ］ of cylindrical shell ［ 5 ］, and the endoporus of mould bearing ［ 11 ］ just in time closely is enclosed within on the end of crystallizer ［ 6 ］.Have cooling water cavity ［ 13 ］ in mould bearing ［ 11 ］ body, this chamber ［ 13 ］ and cylindrical shell ［ 5 ］ are connected with water jacket between the crystallizer ［ 6 ］.Mould bearing ［ 11 ］ has internal taper hole structure ［ 14 ］ or internal thread hole structure ［ 18 ］ (Fig. 1 left side expression inner bolt hole structure ［ 18 ］, internal taper hole structure ［ 14 ］ is represented on the right side).Spacer ring ［ 7 ］ cooling water cavity ［ 13 ］ in water sleeve mould bearing ［ 11 ］ body between cylindrical shell ［ 5 ］ and crystallizer ［ 6 ］ is separated or in water jacket ［ 8 ］ and outer water jacket ［ 9 ］, this two water jacket communicates in the bottom of cooling water cavity ［ 13 ］.In water jacket ［ 8 ］ communicate with cooling water inlet ［ 3 ］, outer water jacket ［ 9 ］ communicates with coolant outlet ［ 2 ］, vacuum source interface ［ 1 ］ communicates with crystallizer ［ 6 ］.Graphite mo(u)ld ［ 12 ］ with Outer Taper structure or external thread structure is closely put in the internal taper hole structure ［ 14 ］ or inner bolt hole structure ［ 18 ］ of mould bearing ［ 11 ］.The collet of being made up of high aluminum fiber ［ 17 ］ and carbon fibre ［ 16 ］ ［ 15 ］ is enclosed within the outside of mould bearing ［ 11 ］.
Graphite mo(u)ld has mould-pipe body ［ 22 ］ shown in Fig. 2,3, and the upper end of die body ［ 22 ］ has cone structure ［ 20 ］, and the tapering of the internal taper hole ［ 14 ］ of the isotype bearing of its tapering ［ 11 ］ is identical, can be 4 °-8 °, and requires to have very high fineness.Die body ［ 22 ］ has elongated endoporus ［ 21 ］, and the diameter of endoporus is identical with the external diameter of the metal tube of desiring continuous casting, and has high fineness, can be
8～
12.One end of elongated endoporus ［ 21 ］ has internal taper hole ［ 25 ］ structure, has interior cylinder locating hole ［ 24 ］ to join with it on the internal taper hole ［ 25 ］ again.Described internal taper hole ［ 25 ］ and interior cylinder locating hole ［ 24 ］ and elongated hole ［ 21 ］ keep strict concentricity.On the die body wall of interior cylinder locating hole ［ 24 ］ top, have the radial direction through hole ［ 23 ］ of one group of circumference five equilibrium, the center line of each through hole ［ 23 ］ is by the axis of elongated hole ［ 21 ］ and on same plane perpendicular to axis.Described through hole ［ 23 ］ can be that circular hole also can be hole such as elliptical aperture, the square hole etc. of other shape, and described hole ［ 23 ］ have 6, also can be 4 or other quantity.One end of core rod ［ 29 ］ has the frustum of a cone ［ 26 ］ structure, and the tapering of the frustum of a cone ［ 26 ］ is identical with the tapering of internal taper hole ［ 25 ］; The frustum of a cone ［ 26 ］ stretches upwards and forms positioning cylinder ［ 27 ］, and its diameter is identical with the diameter of interior cylinder locating hole ［ 24 ］; Positioning cylinder ［ 24 ］ stretches upwards again, forms core rod ［ 28 ］, and it be a cylindrical section near a section of positioning cylinder, and its diameter equals to desire the internal diameter of continuous casting of metals pipe, and another section is the cone that has little tapering; The described frustum of a cone ［ 26 ］, positioning cylinder ［ 27 ］, core rod ［ 28 ］ keep with one heart strict.Core rod ［ 29 ］ is enclosed in the elongated hole ［ 21 ］ of die body ［ 22 ］, and its frustum of a cone ［ 26 ］ and positioning cylinder ［ 27 ］ are combined closely with internal taper hole ［ 25 ］, the interior cylinder locating hole ［ 24 ］ of die body ［ 22 ］.Because of the assurance of above-mentioned form and position tolerance precision, make the axis of core rod ［ 28 ］ and the dead in line of elongated hole ［ 21 ］.Each part of above-mentioned graphite mo(u)ld all adopts the graphite manufacturing of high thermal conductivity coefficient.The mating surface of each part and all should be processed into and have mirror-like fineness with the strand contact area.
As shown in Figure 4, as a kind of variation of the graphite mo(u)ld shown in Fig. 2,3, its cone structure ［ 20 ］ can be changed into external thread structure ［ 30 ］.This external screw thread should can closely match with the internal thread of the female thread structure ［ 18 ］ of mould bearing ［ 11 ］, and has very high precision and fineness, preferably grinds through screw grinder.
Graphite mo(u)ld shown in Fig. 5,6, its basic structure are identical with the graphite mo(u)ld shown in Fig. 2,3.The cross section of elongated hole ［ 31 ］ in the die body that only is it that do not exist together be foursquare, so just the energy continuous casting go out square hollow tube.As a kind of variation of graphite mo(u)ld shown in Fig. 5,6, its pyramidal structure also can become external thread structure because of narrating Fig. 2, explaining in detail at 3 o'clock, has no longer repeated here.
Graphite mo(u)ld shown in Fig. 7,8 is the another variation of graphite mo(u)ld shown in Fig. 2,3, and its basic structure is identical.Not exist together be that the cross sections of elongated hole ［ 32 ］ of die body ［ 33 ］ is that at slot one shown in Figure 8 also links a semicircle orifice is arranged, become irregularly-shaped hole.The lower end of die body ［ 33 ］ has internal thread hole ［ 35 ］, and there is the through hole ［ 34 ］ of one group of circumference uniform distribution its top, and quantity can be 6,4 or other number.Having externally threaded end cap ［ 36 ］ closely is screwed in the above-mentioned inner bolt hole ［ 35 ］.Have a shoulder hole ［ 37 ］ that has an internal thread again at the eccentric position of end cap ［ 36 ］, an end have the external screw thread other end slightly the core rod ［ 38 ］ of tool tapering closely be screwed into stretching, extension to elongated hole ［ 32 ］ in the internal thread of shoulder hole ［ 37 ］.The cylinder of core rod ［ 38 ］ axis partly is just in time with the dead in line partly of special-shaped elongated hole ［ 32 ］ semicircle.All mating surfaces reach the fineness that all should have mirror-like with the contact-making surface of strand.
The also available helicitic texture of its cone structure of a kind of variation as graphite mo(u)ld shown in Fig. 7,8 substitutes.
Above-described any one graphite mo(u)ld when adopting thread connection, is increased thermal conductivity, also can use behind the sintering can increased thermal conductivity ointment be coated in the connection place.
As shown in Figure 9, for using metal tube crystallizer of the present utility model to produce the process chart of hollow copper tubing.
The cathode copper surface is cleaned with water and dried, cut into fritter and add the melting furnace fusing, this method is used line frequency furnace.The air isolation layer that adds charcoal or graphite phosphorus sheet then.Charcoal must keep clean, and uses the charcoal by hardwood system, and standard water-content is less than 7%.The phosphorus content hand 99.5～99.8% of graphite phosphorus sheet is of a size of 0.7～1.2mm, is thin and light Powdered.Copper liquid after the fusing flows into holding furnace through chute, and this method also uses line frequency furnace to make holding furnace.Copper liquid is best cast tube temperature 1140 ℃ to 1160 ℃ humidity province, the copper pipe satisfactory mechanical property that casts out, the mechanical performance of cast tube degenerates this humidity province outside, thus in holding furnace the temperature of maintenance copper liquid at 1145 ℃ ± 5 ℃.Copper liquid surface also uses charcoal or graphite flake layer to make the air isolation layer, and the performance requirement of charcoal and graphite phosphorus sheet is with above-mentioned identical.After crystallizer inserted copper liquid certain depth, vacuumize the negative pressure of formation 80～100mm Hg in the crystallizer that makes crystallizer and make copper liquid suck the crystallizer of crystallizer by the graphite nib, perhaps will there be the crystallizer of collet to insert the darker degree of depth of copper liquid, and copper liquid be entered in the crystallizer by the graphite nib under the pressure of liquid level difference manage.To draw bar and insert crystallizer, when the copper liquid in drawing boom end and entering crystallizer contacts,, and make local-crystalized owing to scattering and disappearing of heat.To draw that bar upwards promotes and the copper pipe that will cast is constantly drawn with traction wheel.Meanwhile, constantly passing to cooling water in the water jacket of crystallizer cools off.Cooling water should adopt demineralized water, influences cooling effect to prevent to generate incrustation scale.The Flow-rate adjustment of cooling water in the temperature that makes the hollow copper tubing of drawing between 80 °～150 ℃.
Every technological parameter is as follows
1120 °～1180 ℃ of holding furnace furnace temperature
Vacuum 50～100Hgmm
Cooling water hydraulic pressure 3～6Kg/mm
8 °～15 ℃ of turnover cooling ranges
20 °～45 ℃ of inflow temperatures
Lead speed 700～1000mm/min
On draw pitch 3～7mm
Crystallizer immerses the copper liquid degree of depth 20～45mm
The topped thickness 50～100mm of graphite phosphorus sheet
The topped thickness 50～100mm of charcoal
Claims (11)
1, a kind of relating to, draw casting and produce the crystallizer of metal tube continuously and have the crystallization parts that have cooling jacket and vacuum interface, combine closely with it is characterized in that also having a graphite mo(u)ld and described crystallization part detachable, described graphite mo(u)ld has the die body of a band cavity, one of this cavity communicates with crystallizer in the crystallizer, the core rod that stretches is equipped with in the other end in the chamber, form the space between it and the chamber wall, the cross sectional shape in described space is identical with the cross section of the metal tube of desiring continuous casting, has one group of hole that described space is communicated with the external world on the wall of graphite cavity near blind end.
2, crystallizer as claimed in claim 1, it is characterized in that the described core rod that stretches ［ 29 ］ is by the frustum of a cone ［ 26 ］ in the chamber, positioning cylinder ［ 27 ］, core rod ［ 28 ］ are formed, one of described die body has internal taper hole ［ 25 ］, interior cylinder locating hole ［ 24 ］ and hole ［ 23 ］, and the other end becomes cone structure ［ 20 ］.
3, crystallizer as claimed in claim 2 is characterized in that the available external thread structure of described cone structure ［ 20 ］ ［ 20 ］ substitutes.
4,, it is characterized in that described hole ［ 23 ］ is 6 as claim 2 or 3 described crystallizers.
5, as claim 2 or 3 described crystallizers, the cross section that it is characterized in that the chamber of described die body ［ 22 ］ is circular or square.
6, crystallizer as claimed in claim 1, it is characterized in that the described core rod that stretches is by the end cap with external screw thread and shoulder hole ［ 37 ］ ［ 36 ］ in the chamber, the core rod ［ 38 ］ that is contained in the shoulder hole ［ 37 ］ is formed, described die body ［ 33 ］ one ends have cone structure, another one has female thread structure, the cross section rectangularity in its chamber adds semi-circular hole, described end cap ［ 36 ］ is screwed in the internal thread of described die body ［ 33 ］, the axis of core rod ［ 38 ］ and the dead in line of semi-circular hole.
7, crystallizer as claimed in claim 6 is characterized in that described cone structure can substitute with helicitic texture.
8,, it is characterized in that described through hole ［ 34 ］ is 6 as claim 6 or 7 described crystallizers.
9, as claim 2 or 6 described crystallizers, the epimere that it is characterized in that described core rod ［ 29 ］ ［ 38 ］ is tapering slightly.
10, crystallizer as claimed in claim 1 is characterized in that described graphite mo(u)ld made by the graphite of high thermal conductivity coefficient, its mating surface and touch mask with the casting embryonic breeding mirror finish is arranged.
11,, it is characterized in that described graphite mo(u)ld also is with the collet of being made by high aluminum fiber and carbon fiber ［ 15 ］ outward as claim 1 or 2 or 3 or 6 or 7 or 10 described crystallizers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213174 CN87213174U (en) | 1987-09-05 | 1987-09-05 | Crystallizer for continuous casting metallic pipe using upward guide method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213174 CN87213174U (en) | 1987-09-05 | 1987-09-05 | Crystallizer for continuous casting metallic pipe using upward guide method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87213174U true CN87213174U (en) | 1988-09-21 |
Family
ID=4827716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87213174 Withdrawn CN87213174U (en) | 1987-09-05 | 1987-09-05 | Crystallizer for continuous casting metallic pipe using upward guide method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87213174U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102686338A (en) * | 2009-09-29 | 2012-09-19 | 西门子Vai金属科技有限责任公司 | Continuous casting mould with circular or polygonal cross section |
| CN103769553A (en) * | 2014-02-20 | 2014-05-07 | 株洲艾美新材料有限公司 | Adjustable crystallizer |
| CN105033212A (en) * | 2015-07-08 | 2015-11-11 | 南京工业大学 | Crystallizer for continuous casting of titanium alloy pipe |
| CN105478690A (en) * | 2015-11-29 | 2016-04-13 | 无锡超洲科技有限公司 | Graphite die used for up-leading-method crystallizer |
| CN105628437A (en) * | 2015-12-21 | 2016-06-01 | 赣州江钨拉法格高铁铜材有限公司 | Furnace-front sampling method for copper alloy cast with upward casting process |
| CN115533512A (en) * | 2022-09-27 | 2022-12-30 | 中铁建电气化局集团康远新材料有限公司 | Assembly process of super cooler for up-drawing continuous casting |
-
1987
- 1987-09-05 CN CN 87213174 patent/CN87213174U/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102686338A (en) * | 2009-09-29 | 2012-09-19 | 西门子Vai金属科技有限责任公司 | Continuous casting mould with circular or polygonal cross section |
| CN102686338B (en) * | 2009-09-29 | 2014-09-24 | 西门子Vai金属科技有限责任公司 | Continuous casting mould with circular or polygonal cross section |
| CN103769553A (en) * | 2014-02-20 | 2014-05-07 | 株洲艾美新材料有限公司 | Adjustable crystallizer |
| CN103769553B (en) * | 2014-02-20 | 2016-06-15 | 株洲艾美新材料有限公司 | A kind of adjustable crystallizer |
| CN105033212A (en) * | 2015-07-08 | 2015-11-11 | 南京工业大学 | Crystallizer for continuous casting of titanium alloy pipe |
| CN105478690A (en) * | 2015-11-29 | 2016-04-13 | 无锡超洲科技有限公司 | Graphite die used for up-leading-method crystallizer |
| CN105628437A (en) * | 2015-12-21 | 2016-06-01 | 赣州江钨拉法格高铁铜材有限公司 | Furnace-front sampling method for copper alloy cast with upward casting process |
| CN115533512A (en) * | 2022-09-27 | 2022-12-30 | 中铁建电气化局集团康远新材料有限公司 | Assembly process of super cooler for up-drawing continuous casting |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |