CN103290283A - Thermal insulation board of automobile exhaust pipe and manufacturing method thereof - Google Patents
Thermal insulation board of automobile exhaust pipe and manufacturing method thereof Download PDFInfo
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- CN103290283A CN103290283A CN2013102522567A CN201310252256A CN103290283A CN 103290283 A CN103290283 A CN 103290283A CN 2013102522567 A CN2013102522567 A CN 2013102522567A CN 201310252256 A CN201310252256 A CN 201310252256A CN 103290283 A CN103290283 A CN 103290283A
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- automobile exhaust
- exhaust pipe
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- thermal baffle
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Abstract
The invention provides a thermal insulation board of an automobile exhaust pipe and a manufacturing method thereof, and aims at the problem that thermal insulation boards of automobile exhaust pipes can be easy to damage, because the thermal insulation boards are often in the environment of high temperature and corrosive gases. The manufacturing method of the thermal insulation board of the automobile exhaust pipe comprises the following steps: (1) adding raw materials into a melting furnace according to a ratio, melting into a melt at 760 DEG C-780 DEG C, stirring, removing slags, keeping a metal liquid standing and then casting into ingots at 760 DEG C; (2) naturally cooling the ingots to 370 DEG C-470 DEG C for hot rolling with the hot rolling deformation being 75-85%; (3) carrying out cold rolling on a rolling mill after the ingots being cooled to room temperature by water, with the cold rolling deformation being 60-65% for every time, and rolling to a thickness of 0.2-6mm; (4) carrying out an embossing processing on an embossing roller; and (5) carrying out surface anti-corrosion treatment. The thermal insulation board of the automobile exhaust pipe is used for automotive components.
Description
Technical field:
The present invention relates to a kind of auto parts machinery, be specifically related to a kind of automobile exhaust pipe thermal baffle and manufacture method thereof.
Background technology:
The automobile exhaust pipe thermal baffle is owing to often be in the environment of high temperature, corrosive gases, cause damage easily, in designing usually, aluminium sheet is light and handy because of it, perfect heat-dissipating, corrosion-resistant, be used for the thermal baffle of automobile exhaust pipe more, but because of aluminium sheet price height, problems such as unit elongation instability cause problems such as cost height, condemnation factor height.
Summary of the invention:
The objective of the invention is provides a kind of automobile exhaust pipe thermal baffle and manufacture method thereof at the problem of above-mentioned existence, can effectively reduce the consumption of material, reduces the weight of part, solves material unit elongation problem of unstable.
Above-mentioned purpose realizes by following technical scheme:
The automobile exhaust pipe thermal baffle comprises Zr:0.33-0.38% by mass percentage; Cu:0.45-0.55%; Mn:0.12-0.18%; Mg:0.2-0.8%; Cr:0.12-0.22%, surplus is Al and unavoidable impurities.
The manufacture method of automobile exhaust pipe thermal baffle, this method comprises the steps:
(1) according to proportioning raw material is put into smelting furnace, be smelted into melt under 760 ℃-780 ℃, stir, slagging-off, molten metal leaves standstill the back at 760 ℃ of following casting ingot-formings;
(2) naturally cool to 370～470 ℃ and carry out hot rolling, hot rolling deformation amount 75-85%;
(3) back that is cooled to room temperature is cold rolling on the milling train, and cold rolling each maintenance deflection is at 60-65%; Be rolled down to 0.2-6mm thickness;
(4) carry out embossing processing at grain roller;
(5) carry out surperficial corrosion-resistance treatment.
The manufacture method of described automobile exhaust pipe thermal baffle, the method for the surperficial corrosion-resistance treatment described in the step (5) is: with alkali cleaning 1 ~ 10 minute again after the sheet material ultrasonic cleaning after the embossing processing, use washed with de-ionized water at last; The volume ratio of preparation dehydrated alcohol, deionized water is the solution of 1:2.5-3.5, adds SiO simultaneously
2Nanoparticle, making solution is 5.2 to pH, stirring, ultrasonic cleaner vibration; To immerse immersion after 1-3 hour with the embossing sheet material after the washed with de-ionized water, vacuum drying oven solidified 1 ~ 3 hour.
Beneficial effect:
1. the present invention adds alloying element in proportioning, optimize principal element content, optimize thermal treatment process simultaneously, make aluminum alloy materials intensity, toughness properties is further promoted, intensity, toughness and corrosion proof combination have been realized, the present invention is pressed into the embossing aluminium sheet in advance with aluminium sheet in the process of processing, reshape after the intensity of enhancing aluminium sheet, and the part strength of making after the embossing of the aluminium sheet of equal thickness is higher, area of dissipation is bigger, absorbs the better effects if of chassis noise in the vehicle driving process.Like this under equal design conditions, the aluminium plate thickness 0.1-0.2 millimeter that can descend.Requirement to the material unit elongation during shaping reduces.
2. the present invention has carried out surperficial corrosion-resistance treatment to aluminium sheet, adapts to the requirement under automobile exhaust pipe thermal baffle high temperature, the corrosive gases Working environment, has prolonged the work-ing life of automobile exhaust pipe thermal baffle, reduces cost.
Embodiment:
Embodiment 1:
The automobile exhaust pipe thermal baffle comprises Zr:0.33% by mass percentage; Cu:0.45%; Mn:0.12%; Mg:0.2%; Cr:0.12%, surplus is Al and unavoidable impurities.
The manufacture method of automobile exhaust pipe thermal baffle, this method comprises the steps:
(1) according to proportioning raw material is put into smelting furnace, be smelted into melt under 760 ℃, stir, slagging-off, molten metal leaves standstill the back at 760 ℃ of following casting ingot-formings;
(2) naturally cool to 370 ℃ and carry out hot rolling, hot rolling deformation amount 75%;
(3) back that is cooled to room temperature is cold rolling on the milling train, and cold rolling each maintenance deflection is 60%; Be rolled down to 0.2-6mm thickness;
(4) carry out embossing processing at grain roller;
(5) carry out surperficial corrosion-resistance treatment.
The manufacture method of described automobile exhaust pipe thermal baffle, the method for the surperficial corrosion-resistance treatment described in the step (5) is: with alkali cleaning 1 ~ 10 minute again after the sheet material ultrasonic cleaning after the embossing processing, use washed with de-ionized water at last; The volume ratio of preparation dehydrated alcohol, deionized water is the solution of 1:2.5-3.5, adds SiO simultaneously
2Nanoparticle, making solution is 5.2 to pH, stirring, ultrasonic cleaner vibration; To immerse immersion after 1-3 hour with the embossing sheet material after the washed with de-ionized water, vacuum drying oven solidified 1 ~ 3 hour.
Embodiment 2:
The automobile exhaust pipe thermal baffle comprises Zr:0.38% by mass percentage; Cu:0.55%; Mn:0.18%; Mg:0.8%; Cr:0.22%, surplus is Al and unavoidable impurities.
The manufacture method of automobile exhaust pipe thermal baffle, this method comprises the steps:
(1) according to proportioning raw material is put into smelting furnace, be smelted into melt under 780 ℃, stir, slagging-off, molten metal leaves standstill the back at 760 ℃ of following casting ingot-formings;
(2) naturally cool to 470 ℃ and carry out hot rolling, hot rolling deformation amount 85%;
(3) back that is cooled to room temperature is cold rolling on the milling train, and cold rolling each maintenance deflection is 65%; Be rolled down to 0.2-6mm thickness;
(4) carry out embossing processing at grain roller;
(5) carry out surperficial corrosion-resistance treatment.
The manufacture method of described automobile exhaust pipe thermal baffle, the method for the surperficial corrosion-resistance treatment described in the step (5) is: with alkali cleaning 1 ~ 10 minute again after the sheet material ultrasonic cleaning after the embossing processing, use washed with de-ionized water at last; The volume ratio of preparation dehydrated alcohol, deionized water is the solution of 1:2.5-3.5, adds SiO simultaneously
2Nanoparticle, making solution is 5.2 to pH, stirring, ultrasonic cleaner vibration; To immerse immersion after 1-3 hour with the embossing sheet material after the washed with de-ionized water, vacuum drying oven solidified 1 ~ 3 hour.
Embodiment 3:
The automobile exhaust pipe thermal baffle comprises Zr:0.35% by mass percentage; Cu:0.52%; Mn:0.15%; Mg:0.5%; Cr:0.16%, surplus is Al and unavoidable impurities.
The manufacture method of automobile exhaust pipe thermal baffle, this method comprises the steps:
(1) according to proportioning raw material is put into smelting furnace, be smelted into melt under 770 ℃, stir, slagging-off, molten metal leaves standstill the back at 760 ℃ of following casting ingot-formings;
(2) naturally cool to 420 ℃ and carry out hot rolling, hot rolling deformation amount 80%;
(3) back that is cooled to room temperature is cold rolling on the milling train, and cold rolling each maintenance deflection is 62%; Be rolled down to 0.2-6mm thickness;
(4) carry out embossing processing at grain roller;
(5) carry out surperficial corrosion-resistance treatment.
The manufacture method of described automobile exhaust pipe thermal baffle, the method for the surperficial corrosion-resistance treatment described in the step (5) is: with alkali cleaning 1 ~ 10 minute again after the sheet material ultrasonic cleaning after the embossing processing, use washed with de-ionized water at last; The volume ratio of preparation dehydrated alcohol, deionized water is the solution of 1:2.5-3.5, adds SiO simultaneously
2Nanoparticle, making solution is 5.2 to pH, stirring, ultrasonic cleaner vibration; To immerse immersion after 1-3 hour with the embossing sheet material after the washed with de-ionized water, vacuum drying oven solidified 1 ~ 3 hour.
The disclosed technical scheme of the present invention program is not limited only to the disclosed technique means of above-mentioned technical characterictic, also comprises by above technical characterictic being equal to the technical scheme that replacement is formed.Unaccomplished matter of the present invention belongs to those skilled in the art's common practise.
Claims (3)
1. an automobile exhaust pipe thermal baffle is characterized in that: comprise Zr:0.33-0.38% by mass percentage; Cu:0.45-0.55%; Mn:0.12-0.18%; Mg:0.2-0.8%; Cr:0.12-0.22%, surplus is Al and unavoidable impurities.
2. the manufacture method of an automobile exhaust pipe thermal baffle, it is characterized in that: this method comprises the steps:
(1) according to proportioning raw material is put into smelting furnace, be smelted into melt under 760 ℃-780 ℃, stir, slagging-off, molten metal leaves standstill the back at 760 ℃ of following casting ingot-formings;
(2) naturally cool to 370～470 ℃ and carry out hot rolling, hot rolling deformation amount 75-85%;
(3) back that is cooled to room temperature is cold rolling on the milling train, and cold rolling each maintenance deflection is at 60-65%; Be rolled down to 0.2-6mm thickness;
(4) carry out embossing processing at grain roller;
(5) carry out surperficial corrosion-resistance treatment.
3. the manufacture method of automobile exhaust pipe thermal baffle according to claim 2, it is characterized in that: the method for the surperficial corrosion-resistance treatment described in the step (5) is: with alkali cleaning 1 ~ 10 minute again after the sheet material ultrasonic cleaning after the embossing processing, use washed with de-ionized water at last; The volume ratio of preparation dehydrated alcohol, deionized water is the solution of 1:2.5-3.5, adds SiO simultaneously
2Nanoparticle, making solution is 5.2 to pH, stirring, ultrasonic cleaner vibration; To immerse immersion after 1-3 hour with the embossing sheet material after the washed with de-ionized water, vacuum drying oven solidified 1 ~ 3 hour.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102522567A CN103290283A (en) | 2013-06-24 | 2013-06-24 | Thermal insulation board of automobile exhaust pipe and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102522567A CN103290283A (en) | 2013-06-24 | 2013-06-24 | Thermal insulation board of automobile exhaust pipe and manufacturing method thereof |
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| CN103290283A true CN103290283A (en) | 2013-09-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525207A (en) * | 2015-12-31 | 2016-04-27 | 芜湖恒耀汽车零部件有限公司 | Automobile exhaust pipe and preparation method thereof |
| CN105603288A (en) * | 2015-12-24 | 2016-05-25 | 芜湖恒耀汽车零部件有限公司 | Aluminum alloy raw material for automobile exhaust pipe and preparation method for material |
| CN113927247A (en) * | 2021-08-30 | 2022-01-14 | 浙江威罗德汽配股份有限公司 | Heat insulation partition plate of automobile exhaust pipe and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1973056A (en) * | 2004-05-26 | 2007-05-30 | 克里斯铝轧制品有限公司 | Process for producing an aluminium alloy brazing sheet, aluminium alloy brazing sheet |
| CN103045918A (en) * | 2012-04-10 | 2013-04-17 | 湖南晟通科技集团有限公司 | High-weld-strength Al-Mg-Si alloy and section bar preparation method thereof |
-
2013
- 2013-06-24 CN CN2013102522567A patent/CN103290283A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1973056A (en) * | 2004-05-26 | 2007-05-30 | 克里斯铝轧制品有限公司 | Process for producing an aluminium alloy brazing sheet, aluminium alloy brazing sheet |
| CN103045918A (en) * | 2012-04-10 | 2013-04-17 | 湖南晟通科技集团有限公司 | High-weld-strength Al-Mg-Si alloy and section bar preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603288A (en) * | 2015-12-24 | 2016-05-25 | 芜湖恒耀汽车零部件有限公司 | Aluminum alloy raw material for automobile exhaust pipe and preparation method for material |
| CN105525207A (en) * | 2015-12-31 | 2016-04-27 | 芜湖恒耀汽车零部件有限公司 | Automobile exhaust pipe and preparation method thereof |
| CN113927247A (en) * | 2021-08-30 | 2022-01-14 | 浙江威罗德汽配股份有限公司 | Heat insulation partition plate of automobile exhaust pipe and preparation method thereof |
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Application publication date: 20130911 |