CN102537531B - Titanium/steel composite pipeline and preparation method thereof - Google Patents
Titanium/steel composite pipeline and preparation method thereof Download PDFInfo
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- CN102537531B CN102537531B CN 201110400341 CN201110400341A CN102537531B CN 102537531 B CN102537531 B CN 102537531B CN 201110400341 CN201110400341 CN 201110400341 CN 201110400341 A CN201110400341 A CN 201110400341A CN 102537531 B CN102537531 B CN 102537531B
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Abstract
The invention discloses a titanium/steel composite pipeline. The titanium/steel composite pipeline is prepared from pure titanium and carbon steel or other steels, and is also prepared by using a seamless pure titanium pipe and a seamless carbon steel pipe. The titanium/steel composite pipeline has a two-layer structure, wherein an inner layer is made from a pure titanium pipe, and an outer layer is made from the carbon steel or other steels. A preparation method of the titanium/steel composite pipeline comprises the following steps of: processing the pure titanium pipe of the inner layer and the carbon steel pipe of the outer layer into a composite pipeline, putting the pure titanium pipe of the inner layer into the carbon steel pipe of the outer layer by adopting hydraulic application, and heating the outer carbon steel pipe to obtain a titanium/steel composite pipe blank; 2) performing annealing treatment on the titanium/steel composite pipe blank in a vacuum annealing furnace; 3) performing cold rolling forming, 4) performing vacuum annealing on a finished product at an annealing temperature of 380-450 DEG C; and 5) performing end cropping, straightening and warehousing. The titanium/steel composite pipeline disclosed by the invention has the characteristics of high strength, high joint degree, light mass, high specific strength, corrosion-resistant inner layer, pressure-proof outer layer and the like.
Description
Technical field
Be used for aggressive medium and carry titanium, the reinforced plastics composite pipeline of equipment, having the high epistasis of the distinctive corrosion resistance of titanium material and steel itself.So this pipeline has big prospect in the aggressive medium transportation art, as chemical medium, fields such as seawater conveyance conduit are specially adapted to shipbuilding industry.
Background technique
The fifties in last century, the high speed development of industry such as worldwide Aeronautics and Astronautics, electronics, machinery, chemical industry, material has been proposed higher, more, harsher usage requirement, because composite material can overcome the narrow limitation of homogenous material, can satisfy corresponding requirement to a certain extent preferably, therefore composite material just arises at the historic moment, and fast development.
Be used for titanium, the reinforced plastics composite pipeline of the conveying equipment of aggressive medium, following main feature is arranged: 1) certain working pressure can be born in the outside.2) inside has certain decay resistance.3) because the density of titanium material is lower, thus this multiple tube under proof strength and corrosion resistance characteristic prerequisite, can also weight reduction.4) use of alternative single resistant material can reduce the assembling manufacture cost to a certain extent.5) has good combination intensity.Titanium, composite pipe can be avoided directly contacting with electrolyte solution (aggressive medium) at outer steel layer, thereby avoid producing galvanic corrosion.Comprehensive above factor, the application prospect of such titanium, reinforced plastics composite pipeline is comparatively open.CN200910029877.2 has provided the processing method of heat exchanger with the titanium pipe, to carrying out cold rolling, interior bore hole after the titanium pole hot extrusion perforation, digging steps such as skin, pickling and annealing.
Titanium is called as " marine metal " with its lightweight, high performance than strong, high excellence such as anti-corrosion, nonmagnetic, be that the metallic material of using future is arranged in the boats and ships project most, be widely used in fields such as surface vessel, underwater submarine, bathyscaph, underawater ordnance, communication apparatus by countries in the world.Though the titanium material has greater advantage still because the higher relatively price of titanium material aspect ship piping system, make that the input actual cost at project initial stage is higher, cause part to drop on the project of building by plan and can not use the titanium material with good corrosion resistance energy in a large number.
Summary of the invention
The objective of the invention is to, for relevant particularly shipbuilding industry and field provide safe and reliable resistant material, with low cost, the titanium steel multiple tube of multi-sizeization and the preparation method of titanium steel multiple tube.This invention finally makes some projects not need to drop into the operating characteristic that big fund just can fully obtain the titanium pipe, the operation of reduction project greatly and maintenance cost.
Technological scheme of the present invention is: the titanium steel multiple tube is made by pure titanium and carbon steel or other steel grades.Adopt seamless pure titanium pipe and seamless carbon steel tube to make, be double layer construction, internal layer is pure titanium pipe, and skin is carbon steel or other steel grades.
The preparation method of titanium steel multiple tube, internal layer is that pure titanium pipe, skin are processed into multiple tube for carbon steel tubing, step is as follows: 1) skin be under the condition of 200 to 450 ℃ of carbon steel tubing heating with internal layer pure titanium pipe be tucked in the outer carbon steel tubing the titanium steel composite pipe blank, the external diameter of the pure titanium pipe of internal layer is identical with the internal diameter of outer carbon steel tubing, when the external diameter of the pure titanium pipe of internal layer is 70-200mm, the external diameter of the pure titanium pipe of internal layer and the internal diameter of outer carbon steel tubing size error be in the 3mm; Adopt hydraulic pressure to apply when filling in to outer carbon steel, obtain the titanium steel composite pipe blank; 2) the titanium steel composite pipe blank is put into vacuum annealing furnace and is carried out annealing in process, and annealing temperature is 580-650 ℃, and annealing back titanium steel composite pipe carries out the end arrangement, and the tube end awl is expanded; 3) carry out cold rolling moulding subsequently, namely realize the mechanical bond of pipeline internal and external layer with the cold rolling moulding moulding of cold pilger mill; By cold rolling moulding, obtain final various finished size; 4) vacuum annealing of finished product, annealing temperature are 380-450 ℃; 5) carry out crop, aligning, warehouse-in again.
Carry out above cold rolling in two roads with two rollers or three roller cold pilger mills when cold rolling, a second processing deformation rate 30-50% when two roads are cold rolling, two passage machining deformation rates are at 20-30%.
The invention has the beneficial effects as follows: the pipeline that safe and reliable resistant material, with low cost, multi-sizeization are provided for relevant particularly shipbuilding industry and field.This invention finally makes some projects not need to drop into the operating characteristic that big fund just can fully obtain the titanium pipe, the operation of reduction project greatly and maintenance cost.Aeronautics and Astronautics, electronics, machinery, chemical industry
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The main forming method of the related titanium pipe 2 of the present invention, steel pipe 1 multiple tube is: the titanium, the steel pipe base that obtain are put into vacuum annealing furnace carry out annealing in process, carry out the end arrangement after the annealing, carry out cold rolling moulding subsequently and make its specification that reaches usage requirement, last vacuum annealing, crop, aligning, warehouse-in.Concrete process step is:
1. obtain big specification titanium, steel pipe base by suitable method.Pipe required for the present invention can be provided by hot extrusion, centrifugal casting or the mode such as compound of exploding;
2. composite pipe blank is carried out vacuum annealing.For avoid under atmospheric conditions that annealing causes than the re-oxidation skin, should adopt vacuum annealing.Annealing temperature is 580-650 ℃ 1 hour (different steel grade temperature are deviation to some extent, and Ben Wendu is limited to titanium and 20 steel pipe bases), with the stove air cooling.The annealing heating-up temperature is less than 15 ℃/minute;
3. carry out cold working with two rollers or three roller cold pilger mills.A second processing deformation rate 30-50%, two passage machining deformation rates are at 20-30%;
4. carry out vacuum heat treatment, heat treatment temperature 380-450 ℃ all can (different steel grade temperature are deviation to some extent, and Ben Wendu is limited to titanium and 20 steel pipe bases), with the stove air cooling; The annealing heating-up temperature is less than 15 ℃/minute;
5. crop deburring, aligning, scale;
6. as carrying out surface finish, check subsequently, pack, put in storage.
Claims (3)
1. the preparation method of titanium steel multiple tube, it is characterized in that with internal layer being that pure titanium pipe, skin are processed into multiple tube for carbon steel tubing, step is as follows: 1) skin be under the condition of 200 to 450 ℃ of carbon steel tubing heating with internal layer pure titanium pipe be tucked in the outer carbon steel tubing the titanium steel composite pipe blank, the external diameter of the pure titanium pipe of internal layer is identical with the internal diameter of outer carbon steel tubing, when the external diameter of the pure titanium pipe of internal layer was 70-200mm, the size error of the external diameter of the pure titanium pipe of internal layer and the internal diameter of outer carbon steel tubing was in the 3mm; Adopt hydraulic pressure to apply when filling in to outer carbon steel, obtain the titanium steel composite pipe blank; 2) the titanium steel composite pipe blank is put into vacuum annealing furnace and is carried out annealing in process, and annealing temperature is 580-650 ℃, and annealing back titanium steel composite pipe carries out the end arrangement, and the tube end awl is expanded; 3) carry out cold rolling moulding subsequently, namely realize the mechanical bond of titanium steel multiple tube pipeline internal and external layer with the cold rolling moulding moulding of cold pilger mill; By cold rolling moulding, obtain final various titanium steel multiple tube finished size; 4) titanium steel multiple tube finished product vacuum annealing, annealing temperature are 380-450 ℃; 5) carry out crop, aligning, warehouse-in again.
2. the preparation method of titanium steel multiple tube according to claim 1, it is characterized in that, described cold rolling moulding is carried out two roads or more multi-pass cold rolling with two rollers or three roller cold pilger mills, a second processing deformation rate 30-50%, and two passage machining deformation rates are at 20-30%.
3. the preparation method of titanium steel multiple tube according to claim 1 is characterized in that, the annealing heating-up temperature is less than 15 ℃/minute.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110400341 CN102537531B (en) | 2011-12-06 | 2011-12-06 | Titanium/steel composite pipeline and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110400341 CN102537531B (en) | 2011-12-06 | 2011-12-06 | Titanium/steel composite pipeline and preparation method thereof |
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| CN102537531A CN102537531A (en) | 2012-07-04 |
| CN102537531B true CN102537531B (en) | 2013-09-04 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104033665B (en) * | 2014-06-05 | 2018-10-30 | 陕西太合科技有限公司 | A kind of mining high-strength non-magnetic metal composite pipe and preparation method thereof |
| CN104235517B (en) * | 2014-09-03 | 2016-05-25 | 钢铁研究总院 | A kind of corrosion-resistant titanium-steel pipe and preparation method thereof |
| CN104191182A (en) * | 2014-09-22 | 2014-12-10 | 沈阳和世泰实业有限公司 | Production method of totally-coated metal composite pipe |
| CN107042246B (en) * | 2016-04-28 | 2019-02-22 | 西北大学 | A method of composite bimetal pipe is produced using drawing method |
| CN106090452B (en) * | 2016-06-30 | 2018-08-28 | 无锡英特派金属制品有限公司 | A kind of preparation method of small-bore platinum and platinum-rhodium alloy pipe |
| CN106475436A (en) * | 2016-11-15 | 2017-03-08 | 江松伟 | A kind of processing method of metal pipe material |
| CN110548777B (en) * | 2018-05-31 | 2021-03-19 | 宝武特种冶金有限公司 | Cold rolling pipe manufacturing method for bimetal composite seamless steel pipe |
| CN112276495A (en) * | 2020-10-28 | 2021-01-29 | 西安热工研究院有限公司 | Method for improving steam oxidation resistance of TP347H boiler tube through lining HR3C steel tube |
| CN118543659B (en) * | 2024-07-30 | 2024-10-11 | 海安太原理工大学先进制造与智能装备产业研究院 | Seamless metal composite pipe perforating and rolling method and perforating and rolling equipment thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2577076Y (en) * | 2002-11-11 | 2003-10-01 | 新日钢制品有限公司 | Soldered multiple-unit tube |
| CN1721753A (en) * | 2004-07-14 | 2006-01-18 | 天津市天材科技发展有限公司 | Manufacturing method of ferritic stainless steel seamless pipe with small diameter |
| CN201149134Y (en) * | 2007-08-01 | 2008-11-12 | 宣兴南 | Duplex metal composite pipe |
| JP5188239B2 (en) * | 2008-03-31 | 2013-04-24 | 日新製鋼株式会社 | High strength steel pipe and manufacturing method thereof |
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