CN103599931A - Processing technique of aluminum-clad steel pipe material - Google Patents
Processing technique of aluminum-clad steel pipe material Download PDFInfo
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- CN103599931A CN103599931A CN201310584076.9A CN201310584076A CN103599931A CN 103599931 A CN103599931 A CN 103599931A CN 201310584076 A CN201310584076 A CN 201310584076A CN 103599931 A CN103599931 A CN 103599931A
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Abstract
The invention provides a processing technique of aluminum-clad steel pipe material, solves the problem that aluminum coatings easily shed during brazing of existing aluminum-clad steel pipes and aluminum alloy fins, and ensures solderability of the aluminum-clad steel pipes. Carbon steel and aluminum alloy are proportionally rolled and composited into aluminum-steel composite, and the aluminum-steel composite is finished, slit and packaged into finished products. The processing technique is characterized in that after the carbon steel and the aluminum alloy are proportionally rolled and composited into the aluminum-steel composite, the aluminum-steel composite is thermally treated and annealed, the aluminum-steel composite is heated at the temperature of 500 DEG C-550 DEG C during annealing, and the temperature is held for 18-22 hours.
Description
Technical field
The present invention relates to many metal composite technical field, especially relate to the preparation technology field of covering aluminum steel tube material for the manufacture of air cooling base tube, be specially a kind of processing technology of covering aluminum steel tube material.
Background technology
Along with going deep into of energy-saving and emission-reduction, the cooling system of thermal power generation all adopts air cooling technique, and air cooler has directly cooling and indirect cooling two kinds of methods for cooling, and indirect cooling early investment is large, but later maintenance cost is low; Direct cooling early investment is little, and later maintenance cost is high, but radiating efficiency is high.Adopting the air cooler of the indirect type of cooling to adopt aluminum pipe to add aluminum alloy fin connects by mechanical expanding mode; And what adopt that directly cooling air cooler adopts is that steel pipe adds the mode of aluminum alloy fin by welding and links together, and direct-cooled technology adopts, be soldering metallurgical binding mode, so the radiating effect of direct-cooled mode is better.But due to aluminum alloy fin and directly soldering of carbon steel, therefore, can only cover one deck aluminium lamination at steel surface, thereby play the bridge joint effect of connecting aluminum alloy fin and carbon steel.The technology of generally covering aluminium at steel surface has that blast is compound, rolling is compound and it is compound to aluminize, owing to covering aluminum steel pipe, need to be connected with aluminum alloy fin by the mode of soldering, therefore, need to cover aluminum steel pipe keeps aluminum steel not separated under brazing temperature, 600 ℃ of general soldering processes temperature, are incubated 30 minutes.But because Al and Fe at high temperature easily produce frangible compounds FeAl3 and Fe2Al5, therefore cover aluminum steel pipe and be very easy to when soldering, produce a large amount of frangible compounds, and cause aluminium lamination to come off, weld unsuccessfully.
Summary of the invention
For the problems referred to above, the invention provides a kind of processing technology of covering aluminum steel tube material, it can solve existing covering in aluminum steel Guan Yu aluminum alloy fin brazing process and be prone to the problem that aluminium lamination comes off, and guarantees to cover the brazing property of aluminum steel pipe.
Its technical scheme is such, carbon steel and aluminum alloy materials are rolled in proportion and are combined into aluminum steel composite material, again described aluminum steel composite material carried out to finishing, cut and packed products, it is characterized in that: by described carbon steel and aluminum alloy materials in proportion rolling be complex as after aluminum steel composite material, described aluminum steel composite material is heat-treated to annealing, described in during described heat-treatment of annealing, the heating-up temperature of aluminum steel composite material is 500 ℃ ~ 550 ℃, is incubated 18 hours～22 hours.
The processing technology of aluminum steel tube material is covered in the present invention, its carbon steel and aluminum alloy materials in proportion rolling be complex as after aluminum steel composite material, described aluminum steel composite material is heat-treated to annealing, control the heating-up temperature of aluminum steel composite material at 500 ℃ ~ 550 ℃, be incubated 18 hours～22 hours, aluminum steel composite material after heat-treatment of annealing can not produce a large amount of frangible compounds when with aluminum alloy fin soldering, thereby covers the brazing property of aluminum steel tube material.
The specific embodiment
Embodiment mono-:
A kind of processing technology of covering aluminum steel tube material, carbon steel and aluminum alloy materials are rolled in proportion and are combined into aluminum steel composite material, described aluminum steel composite material is heat-treated to annealing, described in during described heat-treatment of annealing, the heating-up temperature of aluminum steel composite material is 500 ℃, be incubated 20 hours, more described aluminum steel composite material is carried out to finishing, cuts and packed products.
Embodiment bis-:
A kind of processing technology of covering aluminum steel tube material, carbon steel and aluminum alloy materials are rolled in proportion and are combined into aluminum steel composite material, described aluminum steel composite material is heat-treated to annealing, described in during described heat-treatment of annealing, the heating-up temperature of aluminum steel composite material is 550 ℃, be incubated 18 hours, more described aluminum steel composite material is carried out to finishing, cuts and packed products.
Embodiment tri-:
A kind of processing technology of covering aluminum steel tube material, carbon steel and aluminum alloy materials are rolled in proportion and are combined into aluminum steel composite material, described aluminum steel composite material is heat-treated to annealing, described in during described heat-treatment of annealing, the heating-up temperature of aluminum steel composite material is 520 ℃, be incubated 22 hours, more described aluminum steel composite material is carried out to finishing, cuts and packed products.
Claims (1)
1. a processing technology of covering aluminum steel tube material, carbon steel and aluminum alloy materials are rolled in proportion and are combined into aluminum steel composite material, again described aluminum steel composite material carried out to finishing, cut and packed products, it is characterized in that: by described carbon steel and aluminum alloy materials in proportion rolling be complex as after aluminum steel composite material, described aluminum steel composite material is heat-treated to annealing, described in during described heat-treatment of annealing, the heating-up temperature of aluminum steel composite material is 500 ℃ ~ 550 ℃, is incubated 18 hours～22 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310584076.9A CN103599931A (en) | 2013-11-20 | 2013-11-20 | Processing technique of aluminum-clad steel pipe material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310584076.9A CN103599931A (en) | 2013-11-20 | 2013-11-20 | Processing technique of aluminum-clad steel pipe material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103599931A true CN103599931A (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310584076.9A Pending CN103599931A (en) | 2013-11-20 | 2013-11-20 | Processing technique of aluminum-clad steel pipe material |
Country Status (1)
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| CN (1) | CN103599931A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978063A (en) * | 2014-04-24 | 2014-08-13 | 张红霞 | Dissimilar metal tubular product, preparation method and application thereof |
| CN104801878A (en) * | 2015-04-22 | 2015-07-29 | 北京工业大学 | High-temperature-resistant braze welding brazing aluminum/connecting aluminum/steel three-layer composite plate |
| CN107097899A (en) * | 2017-03-17 | 2017-08-29 | 银邦金属复合材料股份有限公司 | Hull transit joint, aluminum steel composite material and its production method |
| CN107160054A (en) * | 2017-06-05 | 2017-09-15 | 银邦金属复合材料股份有限公司 | Aluminium alloy, aluminum steel composite material and cooling tube bundle |
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2013
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51142418A (en) * | 1975-06-04 | 1976-12-08 | Nippon Steel Corp | Method of manufacturing a1 killed steel sheet having excellent enameli ng and forming properties |
| JPH0234205A (en) * | 1988-07-25 | 1990-02-05 | Hitachi Cable Ltd | Manufacture of aluminum and stainless steel clad plate |
| KR20000039368A (en) * | 1998-12-12 | 2000-07-05 | 이구택 | Method of producing stainless steel/aluminum clad material |
| CN101402155A (en) * | 2008-10-22 | 2009-04-08 | 长沙众兴铝业有限公司 | Process and method for producing composite aluminium and steel band with high temperature bonding strength |
| CN101992567A (en) * | 2009-08-26 | 2011-03-30 | 比亚迪股份有限公司 | Stainless steel/aluminum composite material and preparation method thereof |
| CN101660087A (en) * | 2009-09-18 | 2010-03-03 | 浙江兆隆合金股份有限公司 | Aluminum-steel-aluminum composite material and preparation method thereof |
| CN102041501A (en) * | 2009-10-19 | 2011-05-04 | 山东莱芜金石集团有限公司 | Method for producing aluminum-steel composite board (belt) |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978063A (en) * | 2014-04-24 | 2014-08-13 | 张红霞 | Dissimilar metal tubular product, preparation method and application thereof |
| CN103978063B (en) * | 2014-04-24 | 2016-03-09 | 佛山晓世科技服务有限公司 | Dissimilar metal tubing and its preparation method and application |
| CN104801878A (en) * | 2015-04-22 | 2015-07-29 | 北京工业大学 | High-temperature-resistant braze welding brazing aluminum/connecting aluminum/steel three-layer composite plate |
| CN107097899A (en) * | 2017-03-17 | 2017-08-29 | 银邦金属复合材料股份有限公司 | Hull transit joint, aluminum steel composite material and its production method |
| CN107160054A (en) * | 2017-06-05 | 2017-09-15 | 银邦金属复合材料股份有限公司 | Aluminium alloy, aluminum steel composite material and cooling tube bundle |
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Application publication date: 20140226 |
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