CN103372579A - Manufacturing process of aluminum-steel composite pipe with high thermal conductivity for petrochemical - Google Patents
Manufacturing process of aluminum-steel composite pipe with high thermal conductivity for petrochemical Download PDFInfo
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- CN103372579A CN103372579A CN2012101186920A CN201210118692A CN103372579A CN 103372579 A CN103372579 A CN 103372579A CN 2012101186920 A CN2012101186920 A CN 2012101186920A CN 201210118692 A CN201210118692 A CN 201210118692A CN 103372579 A CN103372579 A CN 103372579A
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- steel pipe
- petrochemical industry
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Abstract
The invention discloses a manufacturing process of an aluminum-steel composite pipe with high thermal conductivity for petrochemical. The adopted raw materials comprise an aluminum pipe and a steel pipe. The manufacturing process comprises the following steps: firstly, pickling and drying the aluminum pipe and the steel pipe; then, sleeving the aluminum pipe at the outside of the steel pipe, reserving a gap of 0.3-0.4 mm between the inside diameter of the aluminum pipe and the outside diameter of the steel pipe, simultaneously heating the aluminum pipe and the steel pipe through super audio induction coils, and firmly compounding the heads of the aluminum pipe and the steel pipe through a special head rolling machine; lubricating the aluminum pipe; finally, performing cold drawing through a speed drawing machine. Therefore, the produced aluminum-steel composite pipe not only has excellent heat conducting performance, and the rigidity is improved, meanwhile, the aluminum material is greatly saved and the heat dissipation efficiency is enhanced.
Description
Technical field
The present invention relates to a kind of technique of composite tube production, especially a kind of petrochemical industry is with the manufacture craft of high heat conduction aluminum steel pipe.
Background technology
The application of multiple tube in our life is more and more extensive, and petrochemical industry is because of its industrial particularity, and the radiating tube that uses for a long time all is the aluminium pipe, because the aluminum pipe thermal conductivity factor is high, and good heat dissipation effect.But also there is certain defective in the aluminium pipe that uses as radiator, and that is exactly the rigidity insufficient strength, and the short time is used not impact, but just may cause some problems to occur when long-time large load uses.A kind of like this overall structure rigidity of radiator that requires is strengthened, and the life-span of the radiator multiple tube that can prolong just becomes the common requirements of industry production.
So we constantly explore research and development in process of production, attempt to use the compound mode of cold-drawn to solve such industry difficult problem.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, we grope through long-term practice aborning, have summed up a kind of petrochemical industry with the manufacture craft of high heat conduction aluminum steel pipe.
Technical scheme: in order to realize the foregoing invention purpose, the technical solution adopted in the present invention is: a kind of petrochemical industry comprises aluminum pipe and steel pipe with the manufacture craft of high heat conduction aluminum steel pipe, the former material of use, at first aluminum pipe and steel pipe is carried out pickling, drying.Specifically be expressed as: when the aluminum pipe surfaces externally and internally is carried out pickling, use dilute hydrochloric acid solution, concentration range is 10% to 15%, and temperature pickling 8-10 minute, is placed on 2% NaNO at 30-40 ℃ after the bath
3Then the solution passivation blows off with compressed air, uses steam drying; During to acid cleaning of steel tube, working concentration is 15% dilution heat of sulfuric acid, and set temperature is 40-50 ℃, and pickling 3-5 minute, bath blew off with compressed air, uses steam drying.
Secondly with the outside of aluminium pipe sleeve at steel pipe, reserve the gap of 0.3mm to 0.4mm between aluminum pipe internal diameter and the outer diameter of steel pipes, then use the superaudio induction coil, heat simultaneously aluminum pipe and steel pipe, when described use superaudio induction coil heating aluminum pipe and steel pipe, heating-up temperature is set as 520-540 ℃.By special-purpose head rolling machine aluminum pipe and steel pipe head closely are combined with each other subsequently.
Again, aluminum pipe is lubricated, concrete steps are with graphite and the lime ratio mix and blend in 1: 5, first lime is stirred pulping, filters with crocus cloth, dry twenty four hours after, stir with graphite, stir more than two hours, spread upon uniformly aluminum tube surfaces, after enter 300 ℃ of steam drying stoves.
Use at last speed governing machine drawing cold-drawn, in the time of cold-drawn, aluminum pipe adds and is coated with chlorinated paraffin wax, speed governing machine drawing speed is made as 8 m/mins, through deoil and alignment after form petrochemical industry with high heat-conducting and corrosion-resistant aluminum steel multiple tube, use nylon alignment roller in the time of alignment, selecting at a slow speed, a grade linear velocity is 3 m/mins of alignments.
Beneficial effect: the present invention compared with prior art, its beneficial effect is: 1, take steel pipe as matrix, add the aluminum pipe cover, take full advantage of the strong characteristics of aluminum pipe plasticity; 2, the pipe fitting of the present invention's production is cut open after tested, and tensile strength is greater than 130Mpa, and hardness is 14 degree, is better than general multiple tube; 3, use cold-drawing technology compound, the potential safety hazard of having avoided heat treatment to bring; When 4, being used for the radiator manufacturing of petrochemical industry, improve the overall structure rigidity of radiator, prolonged the life-span of radiator, significantly saved aluminium simultaneously, improved heat sinking benefit.
Description of drawings
Accompanying drawing 1 is the process chart of a kind of petrochemical industry of the present invention with the manufacture craft of high heat conduction aluminum steel pipe.
Accompanying drawing 2 is structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, by a most preferred embodiment, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
As shown in Figure 2, a kind of petrochemical industry comprises aluminum pipe 1 and steel pipe 2 with the manufacture craft of high heat conduction aluminum steel pipe, main material.
As shown in Figure 1, at first aluminum pipe 1 and steel pipe 2 are carried out pickling, drying, specifically be expressed as: when aluminum pipe 1 surfaces externally and internally is carried out pickling, use dilute hydrochloric acid solution, concentration range is 10% to 15%, and temperature is at 30-40 ℃, pickling 8-10 minute, be placed on 2% NaNO after the bath
3Then the solution passivation blows off with compressed air, uses steam drying; During to steel pipe 2 pickling, working concentration is 15% dilution heat of sulfuric acid, and set temperature is 40-50 ℃, and pickling 3-5 minute, bath blew off with compressed air, uses steam drying.
Secondly aluminum pipe 1 is enclosed within the outside of steel pipe 2, reserves the gap of 0.3mm to 0.4mm between aluminum pipe 1 internal diameter and steel pipe 2 external diameters, then use the superaudio induction coil, heat simultaneously aluminum pipe 1 and steel pipe 2, heating-up temperature is set as 520-540 ℃.
By special-purpose head rolling machine aluminum pipe 1 and steel pipe 2 heads closely are combined with each other subsequently, again, aluminum pipe 1 is lubricated, specifically is expressed as: with graphite and the lime ratio mix and blend in 1: 5, first lime is stirred pulping, filter with crocus cloth, after drying twenty four hours, and graphite stirs, and stirs more than two hours, spread upon uniformly aluminum tube surfaces, after enter 300 ℃ of steam drying stoves.
Use at last speed governing machine drawing cold-drawn, when carrying out cold-drawn, aluminum pipe 1 adds and is coated with chlorinated paraffin wax, and speed governing machine drawing speed is made as 8 m/mins.Through deoil and alignment after form petrochemical industry with high heat-conducting and corrosion-resistant aluminum steel multiple tube.Use the alignment of nylon alignment roller, selecting at a slow speed, the shelves linear velocity is 3 m/mins of alignments.After all are all finished, carry out product inspection, Ding Qie and warehouse-in work.
Claims (7)
1. a petrochemical industry is with the manufacture craft of high heat conduction aluminum steel pipe, comprise aluminum pipe (1) and steel pipe (2), it is characterized in that: at first aluminum pipe (1) and steel pipe (2) are carried out pickling, dry, secondly aluminum pipe (1) is enclosed within the outside of steel pipe (2), reserve the gap of 0.3mm to 0.4mm between aluminum pipe (1) internal diameter and steel pipe (2) external diameter, then use the superaudio induction coil, heat simultaneously aluminum pipe (1) and steel pipe (2), subsequently aluminum pipe (1) and steel pipe (2) head closely are combined with each other, again, aluminum pipe (1) is lubricated, use at last speed governing machine drawing cold-drawn, through deoil and alignment after form petrochemical industry with high heat-conducting and corrosion-resistant aluminum steel multiple tube.
2. a kind of petrochemical industry according to claim 1 is with the manufacture craft of high heat conduction aluminum steel pipe, it is characterized in that: when aluminum pipe (1) surfaces externally and internally is carried out pickling, use dilute hydrochloric acid solution, concentration range is 10% to 15%, temperature is at 30-40 ℃, pickling 8-10 minute, be placed on 2% NaNO after the bath
3Then the solution passivation blows off with compressed air, uses steam drying; During to steel pipe (2) pickling, working concentration is 15% dilution heat of sulfuric acid, and set temperature is 40-50 ℃, and pickling 3-5 minute, bath blew off with compressed air, uses steam drying.
3. a kind of petrochemical industry according to claim 1 is characterized in that with the manufacture craft of high heat conduction aluminum steel pipe: when described use superaudio induction coil heating aluminum pipe (1) and steel pipe (2), heating-up temperature is set as 520-540 ℃.
4. a kind of petrochemical industry according to claim 1 is characterized in that: by special-purpose head rolling machine aluminum pipe (1) and steel pipe (2) head closely are combined with each other with the manufacture craft of high heat conduction aluminum steel pipe.
5. a kind of petrochemical industry according to claim 1 is with the manufacture craft of high heat conduction aluminum steel pipe, it is characterized in that: to aluminum pipe (1) when being lubricated, with graphite and the lime ratio mix and blend in 1: 5, first lime is stirred pulping, filters with crocus cloth, dry twenty four hours after, stir with graphite, stir more than two hours, spread upon uniformly aluminum tube surfaces, after enter 300 ℃ of steam drying stoves.
6. a kind of petrochemical industry according to claim 1 is characterized in that with the manufacture craft of high heat conduction aluminum steel pipe: when carrying out cold-drawn, aluminum pipe (1) adds and is coated with chlorinated paraffin wax, and speed governing machine drawing speed is made as 8 m/mins.
7. a kind of petrochemical industry according to claim 1 is characterized in that with the manufacture craft of high heat conduction aluminum steel pipe: when carrying out described alignment procedure, use the alignment of nylon alignment roller, selecting at a slow speed, a shelves linear velocity is 3 m/mins of alignments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101186920A CN103372579A (en) | 2012-04-20 | 2012-04-20 | Manufacturing process of aluminum-steel composite pipe with high thermal conductivity for petrochemical |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101186920A CN103372579A (en) | 2012-04-20 | 2012-04-20 | Manufacturing process of aluminum-steel composite pipe with high thermal conductivity for petrochemical |
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| CN103372579A true CN103372579A (en) | 2013-10-30 |
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| CN2012101186920A Pending CN103372579A (en) | 2012-04-20 | 2012-04-20 | Manufacturing process of aluminum-steel composite pipe with high thermal conductivity for petrochemical |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728651A (en) * | 2012-07-03 | 2012-10-17 | 苏州张扬能源科技有限公司 | Preparation process for motor novel main shaft sleeve |
| CN104785556A (en) * | 2015-03-12 | 2015-07-22 | 河北钢铁股份有限公司 | Composite lubricating metal wire high temperature drawing method |
| CN105855307A (en) * | 2016-05-19 | 2016-08-17 | 常熟市异型钢管有限公司 | Drawing method of profiled titanium tube |
| CN108746243A (en) * | 2018-06-12 | 2018-11-06 | 江苏银环精密钢管有限公司 | A kind of manufacturing method of same steel grade two-layer compound seamless pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0998994A2 (en) * | 1998-10-28 | 2000-05-10 | Bundy Corporation | Multi-wall tube |
| US20050031894A1 (en) * | 2003-08-06 | 2005-02-10 | Klaus-Peter Klos | Multilayer coated corrosion resistant article and method of production thereof |
| CN101259582A (en) * | 2008-04-28 | 2008-09-10 | 江阴市界达特异制管有限公司 | Preparation of seamless special-shaped steel pipe for low temperature resistance oil derrick electric transmission pole tower |
| CN101645334A (en) * | 2008-08-05 | 2010-02-10 | 北京有色金属研究总院 | Extrusion rolling composite method for producing copper clad aluminum row |
| CN201697517U (en) * | 2010-02-11 | 2011-01-05 | 宣兴南 | Novel steel-aluminum bimetal pipe and pipe bundle thereof |
| CN102182874A (en) * | 2011-05-20 | 2011-09-14 | 唐勇 | Bimetal mechanical composite wear-resistant steel tube and production method thereof |
-
2012
- 2012-04-20 CN CN2012101186920A patent/CN103372579A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0998994A2 (en) * | 1998-10-28 | 2000-05-10 | Bundy Corporation | Multi-wall tube |
| US20050031894A1 (en) * | 2003-08-06 | 2005-02-10 | Klaus-Peter Klos | Multilayer coated corrosion resistant article and method of production thereof |
| CN101259582A (en) * | 2008-04-28 | 2008-09-10 | 江阴市界达特异制管有限公司 | Preparation of seamless special-shaped steel pipe for low temperature resistance oil derrick electric transmission pole tower |
| CN101645334A (en) * | 2008-08-05 | 2010-02-10 | 北京有色金属研究总院 | Extrusion rolling composite method for producing copper clad aluminum row |
| CN201697517U (en) * | 2010-02-11 | 2011-01-05 | 宣兴南 | Novel steel-aluminum bimetal pipe and pipe bundle thereof |
| CN102182874A (en) * | 2011-05-20 | 2011-09-14 | 唐勇 | Bimetal mechanical composite wear-resistant steel tube and production method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 席正海: "国外双金属复合管生产工艺", 《四川冶金》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728651A (en) * | 2012-07-03 | 2012-10-17 | 苏州张扬能源科技有限公司 | Preparation process for motor novel main shaft sleeve |
| CN104785556A (en) * | 2015-03-12 | 2015-07-22 | 河北钢铁股份有限公司 | Composite lubricating metal wire high temperature drawing method |
| CN105855307A (en) * | 2016-05-19 | 2016-08-17 | 常熟市异型钢管有限公司 | Drawing method of profiled titanium tube |
| CN108746243A (en) * | 2018-06-12 | 2018-11-06 | 江苏银环精密钢管有限公司 | A kind of manufacturing method of same steel grade two-layer compound seamless pipe |
| CN108746243B (en) * | 2018-06-12 | 2020-05-05 | 江苏银环精密钢管有限公司 | Manufacturing method of same-steel-grade double-layer composite seamless pipe |
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Application publication date: 20131030 |