CN104525615A - Method for producing metal laminated composite tube - Google Patents
Method for producing metal laminated composite tube Download PDFInfo
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- CN104525615A CN104525615A CN201410716016.2A CN201410716016A CN104525615A CN 104525615 A CN104525615 A CN 104525615A CN 201410716016 A CN201410716016 A CN 201410716016A CN 104525615 A CN104525615 A CN 104525615A
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- Prior art keywords
- pipe
- tube
- metal
- multiple tube
- layer metal
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Classifications
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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
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a method for producing a metal laminated composite tube, which comprises the following steps: 1)selecting a metal tube; 2)pretreating the metal tube; 3)combining a pipe fitting; 4)compacting and compositing; 5)performing plastic processing; and 6)performing post-treatment. The method has the advantages of simple production technology and equipment, high die life and low production cost, core rod size and plastic processing condition can be changed according to the practical requirement, so that the bimetallic laminated composite tube with different specification can be produced; the prepared bimetallic laminated composite tube contains a metal transition layer, metallurgy combination of bimetallic tubes can be realized, no brittle intermetallic compounds can be generated on an interface, interface combination strength and subsequent processing performance of the laminated composite tube can be increased, and the application prospect is wide.
Description
Technical field
The present invention relates to metallic composite field, particularly relate to a kind of preparation method of metal laminate multiple tube.
Background technology
Along with industry developments such as Aero-Space, ocean engineering, electricity power, petrochemical industries, homogenous material is more and more difficult to meet actual instructions for use in performance, to have two or more Material claddings of different performance together, the composite significantly improving comprehensive serviceability comes into one's own day by day.Therefore, utilize metal composite technology to produce have concurrently two or the lamellar composite pipe of various metals advantage arise at the historic moment.The preparation method of current composite bimetal pipe mainly contains: the methods such as drawing compound, hydraulic expanding-forming compound, roll extrusion compound and thermal diffusion welding.All there is the problems such as complex process, equipment investment is large, energy consumption is high in these composite algorithms, and at high temperature the retention time longer, interface easily produces brittle intermetallic thing, affects the serviceability of bimetal tube.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of preparation method of metal laminate multiple tube, can solve existing multiple tube technology of preparing above shortcomings part.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the preparation method providing a kind of metal laminate multiple tube, comprises the steps:
(1) metal tube is selected: prepare lamination multiple tube with inside and outside two kinds of metal tube combined sets, wherein, the thickness of pipe wall of inner layer metal pipe and outer layer metal tube is 10 ~ 30mm, the external diameter of inner layer metal pipe and outer layer metal tube is 100 ~ 300mm, after suit, the gap between the internal diameter of outer layer metal tube and the external diameter of inner layer metal pipe is 0.2 ~ 0.3mm;
(2) metal tube pretreatment: oil removing, rust cleaning, polishing and dry process are carried out respectively to the inner surface of outer layer metal tube selected in step (1) and the surfaces externally and internally of inner layer metal pipe;
(3) pipe fitting combination: by step (2) with process after inner layer metal pipe box be contained in outer layer metal tube, and in inner layer metal pipe, insert surface scribble the plug of lubricating oil;
(4) suppress compound: insert in high temperature furnace by the pipe fitting after combination in step (3), constant temperature preheating 10 ~ 30min at 300 ~ 600 DEG C, be placed in rapidly after taking-up on press-forming machine and carry out reducing compacting composite molding;
(5) plastic working: the multiple tube of compacting composite molding in step (4) is carried out 1 ~ 3 plastic working, obtains the metal laminate multiple tube of required caliber;
(6) post processing: the multiple tube in step (5) after plastic working is cut head and afterbody, then pickling, washing and dry process are carried out to its surfaces externally and internally, obtain face, area within a jurisdiction smooth and containing lamination transition zone metal laminate multiple tube.
In a preferred embodiment of the present invention, the inner layer metal pipe in described step (1) is stainless steel tube, hot galvanized steel pipe or aluminum pipe; Described outer tube is copper pipe, titanium pipe or aluminium-alloy pipe.
In a preferred embodiment of the present invention, in described step (2), described deoiling method is wash with the strong alkali solution that mass concentration is 8%, and described derusting method is wash with the strongly acidic solution that mass concentration is 8%, and wherein, the effective mass concentration of titanium is 20%HNO
3+ 5%HF solution washing.
In a preferred embodiment of the present invention, in described step (4), described reducing compacting combination process is: compression reducing rate 30 ~ 70%, discharge velocity 2 ~ 5m/min.
In a preferred embodiment of the present invention, in described step (5), described plastic processing method is room temperature drawing undergauge, and single pass heavy deformation is 10 ~ 20%.
In a preferred embodiment of the present invention, in described step (6), described pickle to be mass concentration be 3 ~ 5% strongly acidic solution.
In a preferred embodiment of the present invention, described strong acid is inorganic acid.
In a preferred embodiment of the present invention, described strong basicity is inorganic base.
The invention has the beneficial effects as follows: the preparation method of a kind of metal laminate multiple tube of the present invention, production technology and equipment is simple, die life is high, production cost is low, the condition of plug size and plastic working can be changed according to the actual requirements, to prepare the bimetallic lamination multiple tube of different size; Prepared bimetallic lamination multiple tube contains the excessive layer of metal, achieves the metallurgical binding of bimetal tube, can generate by control inerface again, improve the properties for follow of interface bond strength and multiple tube, have a extensive future without brittle intermetallic thing.
Accompanying drawing explanation
Fig. 1 is the technical process schematic diagram of the press-forming machine of the preparation method of a kind of metal laminate multiple tube of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1. outer layer metal tube, 2. inner layer metal pipe, 3. plug, 4. compacting tool set, 5. metal laminate multiple tube.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
Present invention is disclosed a kind of preparation method of metal laminate multiple tube, concrete steps are as follows:
(1) metal tube is selected: prepare lamination multiple tube with inside and outside two kinds of metal tube combined sets, wherein, the thickness of pipe wall of inner layer metal pipe and outer layer metal tube is 10 ~ 30mm, the external diameter of inner layer metal pipe and outer layer metal tube is 100 ~ 300mm, after suit, the gap between the internal diameter of outer layer metal tube and the external diameter of inner layer metal pipe is 0.2 ~ 0.3mm; Wherein, inner layer metal pipe is stainless steel tube, hot galvanized steel pipe or aluminum pipe; Outer tube is copper pipe, titanium pipe or aluminium-alloy pipe;
(2) metal tube pretreatment: oil removing, rust cleaning, polishing and dry process are carried out respectively to the inner surface of outer layer metal tube selected in step (1) and the surfaces externally and internally of inner layer metal pipe; Wherein, deoiling method be by mass concentration be 8% inorganic strong alkali solution washing, described derusting method be by mass concentration be 8% inorganic acid solution washing, wherein, the effective mass concentration of titanium is 20%HNO
3+ 5%HF solution washing;
(3) pipe fitting combination: by step (2) with process after inner layer metal pipe box be contained in outer layer metal tube, and in inner layer metal pipe, insert surface scribble the plug of lubricating oil;
(4) suppress compound: insert in high temperature furnace by the pipe fitting after combination in step (3), constant temperature preheating 10 ~ 30min at 300 ~ 600 DEG C, be placed in rapidly after taking-up on press-forming machine and carry out reducing compacting composite molding; Described reducing compacting combination process is: compression reducing rate 30 ~ 70%, discharge velocity 2 ~ 5m/min;
(5) plastic working: the multiple tube of compacting composite molding in step (4) is carried out 1 ~ 3 plastic working, obtains the metal laminate multiple tube of required caliber; Described plastic processing method is room temperature drawing undergauge, and single pass heavy deformation is 10 ~ 20%;
(6) post processing: the multiple tube in step (5) after plastic working is cut head and afterbody, again pickling, washing and dry process are carried out to its surfaces externally and internally, obtain face, area within a jurisdiction smooth and containing lamination transition zone metal laminate multiple tube, wherein pickle to be mass concentration be 3 ~ 5% inorganic acid solution.
Embodiment 1
(1) metal tube is selected: prepare lamination multiple tube with inside and outside two kinds of metal tube combined sets, wherein, inner layer metal pipe is stainless steel tube, its specification is thickness of pipe wall is 10mm, and external diameter is 100mm, and outer layer metal tube is copper pipe, its specification is thickness of pipe wall is 30mm, and external diameter is 131mm;
(2) metal tube pretreatment: be the sodium hydroxide solution washing oil removing of 8% respectively by mass concentration to the inner surface of the outer layer metal tube of copper pipe and the surfaces externally and internally of stainless steel tube, be the hydrochloric acid solution washing rust cleaning of 8% again by mass concentration, then with wire brush, the surface finish after process is gone out fresh metal surface, finally with hot blast, drying is carried out on the surface after process;
(3) pipe fitting combination: the stainless steel tube after process is sleeved in copper pipe, and the plug inserting that in stainless steel tube surface scribbles lubricating oil;
(4) suppress compound: the pipe fitting after combination in step (3) is inserted constant temperature preheating 10min in the high temperature furnace of 300 DEG C, is placed in rapidly on press-forming machine after taking-up, carry out reducing compacting composite molding with the discharge velocity of 70% compression reducing rate and 5m/min; .
(5) plastic working: the multiple tube of compacting composite molding in step (4) is cooled to room temperature, more at room temperature carries out the plastic working of 1 drawing undergauge, diameter reducing rate is 10%, obtains the metal laminate multiple tube of required caliber;
(6) post processing: the multiple tube in step (5) after plastic working is cut head and afterbody, be the hydrochloric acid solution pickling of 3% again to its surfaces externally and internally mass concentration, then carry out washing and dry process successively, obtain face, area within a jurisdiction smooth and be the metal laminate multiple tube of 2.0 μm of lamination transition zones containing thickness.
Embodiment 2
(1) metal tube is selected: prepare lamination multiple tube with inside and outside two kinds of metal tube combined sets, wherein, inner layer metal pipe is hot galvanized steel pipe, its specification is thickness of pipe wall is 15mm, and external diameter is 150mm, and outer layer metal tube is aluminium-alloy pipe, its specification is thickness of pipe wall is 30mm, and external diameter is 180.5mm;
(2) metal tube pretreatment: be the potassium hydroxide solution washing oil removing of 8% respectively by mass concentration to the inner surface of the outer layer metal tube of aluminium-alloy pipe and the surfaces externally and internally of hot galvanized steel pipe, be the salpeter solution washing rust cleaning of 8% again by mass concentration, then with wire brush, the surface finish after process is gone out fresh metal surface, finally with hot blast, drying is carried out on the surface after process;
(3) pipe fitting combination: the hot galvanized steel pipe after process is sleeved in aluminium-alloy pipe, and the plug inserting that in hot galvanized steel pipe surface scribbles lubricating oil;
(4) suppress compound: the pipe fitting after combination in step (3) is inserted constant temperature preheating 10min in the high temperature furnace of 500 DEG C, is placed in rapidly on press-forming machine after taking-up, carry out reducing compacting composite molding with the discharge velocity of 50% compression reducing rate and 4m/min;
(5) plastic working: the multiple tube of compacting composite molding in step (4) is cooled to room temperature, more at room temperature carries out the plastic working of 2 drawing undergauges, diameter reducing rate is 15%, obtains the metal laminate multiple tube of required caliber;
(6) post processing: the multiple tube in step (5) after plastic working is cut head and afterbody, be the salpeter solution pickling of 3% again to its surfaces externally and internally mass concentration, then carry out washing and dry process successively, obtain face, area within a jurisdiction smooth and be the metal laminate multiple tube of 1.8 μm of lamination transition zones containing thickness.
Embodiment 3
(1) metal tube is selected: prepare lamination multiple tube with inside and outside two kinds of metal tube combined sets, wherein, inner layer metal pipe is aluminum pipe, its specification is thickness of pipe wall is 20mm, and external diameter is 200mm, and outer layer metal tube is titanium pipe, its specification is thickness of pipe wall is 20mm, and external diameter is 221mm;
(2) metal tube pretreatment: be 20%HNO to the inner surface mass concentration of the outer layer metal tube of titanium pipe
3the oil removing of+5%HF solution washing, it is the potassium hydroxide solution washing oil removing of 8% to the surfaces externally and internally mass concentration of aluminum pipe, be that the salpeter solution of 8% is to titanium pipe and aluminum pipe washing rust cleaning again by mass concentration, then with wire brush, the surface finish after process is gone out fresh metal surface, finally with hot blast, drying is carried out on the surface after process;
(3) pipe fitting combination: the hot galvanized steel pipe after process is sleeved in aluminium-alloy pipe, and the plug inserting that in hot galvanized steel pipe surface scribbles lubricating oil;
(4) suppress compound: the pipe fitting after combination in step (3) is inserted constant temperature preheating 30min in the high temperature furnace of 600 DEG C, is placed in rapidly on press-forming machine after taking-up, carry out reducing compacting composite molding with the discharge velocity of 20% compression reducing rate and 2m/min;
(5) plastic working: the multiple tube of compacting composite molding in step (4) is cooled to room temperature, more at room temperature carries out the plastic working of 3 drawing undergauges, diameter reducing rate is 20%, obtains the metal laminate multiple tube of required caliber;
(6) post processing: the multiple tube in step (5) after plastic working is cut head and afterbody, be the salpeter solution pickling of 5% again to its surfaces externally and internally mass concentration, then carry out washing and dry process successively, obtain face, area within a jurisdiction smooth and be the metal laminate multiple tube of 1.3 μm of lamination transition zones containing thickness.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. a preparation method for metal laminate multiple tube, is characterized in that, comprises the steps:
(1) metal tube is selected: prepare lamination multiple tube with inside and outside two kinds of metal tube combined sets, wherein, the thickness of pipe wall of inner layer metal pipe and outer layer metal tube is 10 ~ 30mm, the external diameter of inner layer metal pipe and outer layer metal tube is 100 ~ 300mm, after suit, the gap between the internal diameter of outer layer metal tube and the external diameter of inner layer metal pipe is 0.2 ~ 0.3mm;
(2) metal tube pretreatment: oil removing, rust cleaning, polishing and dry process are carried out respectively to the inner surface of outer layer metal tube selected in step (1) and the surfaces externally and internally of inner layer metal pipe;
(3) pipe fitting combination: by step (2) with process after inner layer metal pipe box be contained in outer layer metal tube, and in inner layer metal pipe, insert surface scribble the plug of lubricating oil;
(4) suppress compound: insert in high temperature furnace by the pipe fitting after combination in step (3), constant temperature preheating 10 ~ 30min at 300 ~ 600 DEG C, be placed in rapidly after taking-up on press-forming machine and carry out reducing compacting composite molding;
(5) plastic working: the multiple tube of compacting composite molding in step (4) is carried out 1 ~ 3 plastic working, obtains the metal laminate multiple tube of required caliber;
(6) post processing: the multiple tube in step (5) after plastic working is cut head and afterbody, then pickling, washing and dry process are carried out to its surfaces externally and internally, obtain face, area within a jurisdiction smooth and containing lamination transition zone metal laminate multiple tube.
2. the preparation method of metal laminate multiple tube according to claim 1, is characterized in that, the inner layer metal pipe in described step (1) is stainless steel tube, hot galvanized steel pipe or aluminum pipe; Described outer tube is copper pipe, titanium pipe or aluminium-alloy pipe.
3. the preparation method of metal laminate multiple tube according to claim 1, it is characterized in that, in described step (2), described deoiling method is wash with the strong alkali solution that mass concentration is 8%, described derusting method is wash with the strongly acidic solution that mass concentration is 8%, wherein, the effective mass concentration of titanium is 20%HNO
3+ 5%HF solution washing.
4. the preparation method of metal laminate multiple tube according to claim 1, is characterized in that, in described step (4), described reducing compacting combination process is: compression reducing rate 30 ~ 70%, discharge velocity 2 ~ 5m/min.
5. the preparation method of metal laminate multiple tube according to claim 1, is characterized in that, in described step (5), described plastic processing method is room temperature drawing undergauge, and single pass heavy deformation is 10 ~ 20%.
6. the preparation method of metal laminate multiple tube according to claim 1, is characterized in that, in described step (6), described pickle to be mass concentration be 3 ~ 5% strongly acidic solution.
The preparation method of the metal laminate multiple tube according to claim 3 or 6, is characterized in that, described strong acid is inorganic acid.
7. the preparation method of metal laminate multiple tube according to claim 3, is characterized in that, described strong basicity is inorganic base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716016.2A CN104525615A (en) | 2014-12-02 | 2014-12-02 | Method for producing metal laminated composite tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716016.2A CN104525615A (en) | 2014-12-02 | 2014-12-02 | Method for producing metal laminated composite tube |
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| CN104525615A true CN104525615A (en) | 2015-04-22 |
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| CN201410716016.2A Pending CN104525615A (en) | 2014-12-02 | 2014-12-02 | Method for producing metal laminated composite tube |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714768A (en) * | 2018-05-18 | 2018-10-30 | 沧州隆泰迪管道科技有限公司 | A kind of diameter reduced mechanical composite tube processing method |
| CN110626848A (en) * | 2019-08-14 | 2019-12-31 | 山东广泰环保科技有限公司 | Composite pipe, preparation device and process, roller body and application of roller body |
| CN111421044A (en) * | 2020-04-14 | 2020-07-17 | 浙江天管久立特材有限公司 | Preparation process of low-strength base pipe composite elastic liner pipe and composite pipe |
| CN114607839A (en) * | 2022-02-24 | 2022-06-10 | 西安德信成科技有限责任公司 | Multilayer composite metal pipe based on cathodic protection and preparation method thereof |
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| CN103861888A (en) * | 2014-03-20 | 2014-06-18 | 北京科技大学 | Preparation method for high-performance copper/titanium composite pipe |
| CN103934303A (en) * | 2014-03-20 | 2014-07-23 | 北京科技大学 | Preparation method of high performance copper/ aluminum composite pipe |
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| EP1515075A2 (en) * | 2003-09-15 | 2005-03-16 | Huntington Alloys Corporation | Composite tube for ethylene pyrolysis furnace and methods of manufacture and joining same |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714768A (en) * | 2018-05-18 | 2018-10-30 | 沧州隆泰迪管道科技有限公司 | A kind of diameter reduced mechanical composite tube processing method |
| CN110626848A (en) * | 2019-08-14 | 2019-12-31 | 山东广泰环保科技有限公司 | Composite pipe, preparation device and process, roller body and application of roller body |
| WO2021027460A1 (en) * | 2019-08-14 | 2021-02-18 | 山东广泰环保科技有限公司 | Composite tube, manufacturing device, process, roller body and use of roller body |
| KR20220044831A (en) * | 2019-08-14 | 2022-04-11 | 산둥 광타이 인바이런멘탈 테크놀러지 컴퍼니 리미티드 | Composite tube, manufacturing equipment, process, roller body and application of roller body |
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| KR102656485B1 (en) * | 2019-08-14 | 2024-04-11 | 산둥 광타이 인바이런멘탈 테크놀러지 컴퍼니 리미티드 | Composite tubes, manufacturing devices, processes, roller bodies and applications of roller bodies |
| CN110626848B (en) * | 2019-08-14 | 2024-05-03 | 山东广泰环保科技有限公司 | Composite pipe, preparation device, process, roller body and application of roller body |
| CN111421044A (en) * | 2020-04-14 | 2020-07-17 | 浙江天管久立特材有限公司 | Preparation process of low-strength base pipe composite elastic liner pipe and composite pipe |
| CN114607839A (en) * | 2022-02-24 | 2022-06-10 | 西安德信成科技有限责任公司 | Multilayer composite metal pipe based on cathodic protection and preparation method thereof |
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