EP0780552B1 - Pot d'échappement de véhicule automobile - Google Patents
Pot d'échappement de véhicule automobile Download PDFInfo
- Publication number
- EP0780552B1 EP0780552B1 EP96402533A EP96402533A EP0780552B1 EP 0780552 B1 EP0780552 B1 EP 0780552B1 EP 96402533 A EP96402533 A EP 96402533A EP 96402533 A EP96402533 A EP 96402533A EP 0780552 B1 EP0780552 B1 EP 0780552B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- central part
- compris entre
- degrees celsius
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 239000010936 titanium Substances 0.000 claims abstract description 12
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 239000004411 aluminium Substances 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 8
- 239000011574 phosphorus Substances 0.000 claims abstract description 8
- 239000005864 Sulphur Substances 0.000 claims abstract 2
- 238000000137 annealing Methods 0.000 claims description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 10
- 238000005098 hot rolling Methods 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 239000011572 manganese Substances 0.000 claims description 7
- 238000001953 recrystallisation Methods 0.000 claims description 7
- 238000005097 cold rolling Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 230000003584 silencer Effects 0.000 abstract 1
- 210000003298 dental enamel Anatomy 0.000 description 17
- 230000007547 defect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 4
- 229910000680 Aluminized steel Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004534 enameling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910018071 Li 2 O 2 Inorganic materials 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2510/00—Surface coverings
- F01N2510/08—Surface coverings for corrosion prevention
Definitions
- the present invention relates to an exhaust pipe motor vehicle.
- a motor vehicle exhaust pipe is made up an outer shell, an inner shell and a central part made up of perforated pipes and assembled transverse partitions between them to form a chicane, called tripaille.
- the central part of the exhaust pipes, as well as their inner shell must withstand very acidic and very basics of condensates that form during use when expansion therein of the burnt gases from the vehicle combustion engine automobile.
- European Patent No. 007,131 describes such a particular type of enamel, the manufacturing and implementation of which complex and therefore entail an additional cost compared to the use of standard enamels.
- the present invention provides an exhaust for motor vehicle, resistant to severe attack by condensates which are formed in its central part, and which is of a low cost.
- an exhaust pipe motor vehicle consists of an outer casing 1, a inner casing 2 and a central part 3.
- the central part 3 consists of perforated tubing 4 and transverse partitions 5 assembled together to form a baffle allowing the expansion of the burnt gases of the combustion engine of the motor vehicle.
- Exhaust also includes tubing inlet 6, connecting it to the engine exhaust manifold and a outlet pipe 7 allowing gases to be evacuated to the atmosphere exhaust relaxed and rid of a certain amount of harmful particles.
- the steel is obtained by hot rolling at a final rolling temperature exceeding the point Ar 3 to obtain a strip, which is coiled at a temperature above 600 degrees Celsius, and after cold rolling, is subjected to recrystallization annealing.
- recrystallization annealing which can be indifferently a base bell annealing or a continuous annealing.
- the strip winding temperature is greater than 700 degrees Celsius.
- the steel is obtained by hot rolling at a final rolling temperature exceeding the point Ar 3 to obtain a strip, which is coiled at a temperature above 700 degrees Celsius, and after cold rolling, is subjected to recrystallization annealing. .
- the strip winding temperature is greater than 750 degrees Celsius.
- Annealing is a base decarburizing annealing in an expanded coil, that is to say a bell annealing of the coil wound in turns contiguous.
- the non-contiguous turn coil is heated in a bell under HNx atmosphere up to about 600 degrees Celsius, then continue the annealing by subjecting it to a current of water vapour.
- the steel is obtained by hot rolling at a final rolling temperature exceeding the point Ar 3 to obtain a strip, which is coiled at a temperature above 600 degrees Celsius, and after cold rolling, is subjected to recrystallization annealing. , basic annealing or continuous annealing.
- the strip is wound at a temperature greater than 700 degrees Celsius.
- the central part 3 can be made of an enameled steel exhaust pipe, perfectly resistant to corrosion, easy to use, using a standard type of enamel, while avoiding the defects linked to the annealing of enamel and defects of the "nail stroke defect" type, and which is low cost.
- the inner casing 2 of the exhaust pipe can be made either of stainless steel or aluminized steel, as well as the outer casing 1.
- the best compromise between efficiency, i.e. essentially corrosion resistance, and cost, consists in making either an exhaust pipe whose central part 3 and the inner envelope 2 are made of enamelled steel, the outer casing 1 being made of aluminized steel, ie an exhaust pipe whose central part 3 is in enamelled steel, the inner envelope 2 is in stainless steel and the outer casing 1 is made of aluminized steel.
- Two exhaust pipes were produced with an envelope inner 2 in stainless steel, outer casing 1 in steel aluminized and a central part 3 in enamelled steel.
- the steel was obtained by hot rolling at a temperature final rolling equal to 890 degrees Celsius to obtain a strip, which was wound at a temperature of 760 degrees Celsius, and after cold rolling, was subjected to recrystallization annealing in coil expanded.
- This central part 3 was enameled by immersing it in a bath of enamel of common mass resistant to heat and corrosion, having the following composition in weight percent: S i O 2 54 Z r O 2 2 P 2 O 5 1 B 2 O 3 14 Al 2 O 3 3 C a O 4 B a O 5 Na 2 O 11 K 2 O 2 Li 2 O 2 N i O 1 C o O 0.5 C u O 0.5.
- the steel was obtained by hot rolling at a temperature final rolling equal to 890 degrees Celsius to obtain a strip, which was wound at a temperature of 710 degrees Celsius, and after cold rolling, was subjected to continuous recrystallization annealing.
- This central part 3 has been enamelled by immersing it in a bath of the same enamel as before.
- the use of enamelled steels to make at least the central part of a pot exhaust said steel having a composition according to the invention, allows guarantee good resistance of the enamelled steel to the thermal shocks it undergoes in operation, that is to say that the cracking of the enamel is avoided.
- steel containing in thousandths of a percent weight between 0 and 10 carbon and between 50 and 150 titanium has a better resistance to thermal shock than steel containing in thousandths of per hundred weight between 0 and 4 of carbon and between 0 and 10 of titanium, which still has very good resistance to thermal shock, better than standard mild steels.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Exhaust Silencers (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Heat Treatment Of Steel (AREA)
- Valve Device For Special Equipments (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Description
- carbone compris entre 0 et 10
- manganèse compris entre 150 et 400
- phosphore compris entre 0 et 20
- soufre compris entre 10 et 30
- aluminium compris entre 10 et 50
- titane compris entre 50 et 150
- cuivre compris entre 10 et 60
- azote compris entre 5 et 15,
- le feuillard est bobiné à une température supérieure à 700 degrés Celsius.
- carbone compris entre 0 et 100
- manganèse compris entre 0 et 500
- phosphore compris entre 0 et 30
- soufre compris entre 0 et 40
- aluminium compris entre 0 et 60
- titane compris entre 0 et 200
- cuivre compris entre 0 et 60
- azote compris entre 0 et 15,
- carbone compris entre 0 et 4
- manganèse compris entre 150 et 400
- phosphore compris entre 10 et 15
- soufre compris entre 15 et 40
- aluminium compris entre 10 et 50
- titane compris entre 0 et 10
- cuivre compris entre 20 et 30
- azote compris entre 1,5 et 7,5,
- carbone compris entre 0 et 10
- manganèse compris entre 150 et 400
- phosphore compris entre 0 et 20
- soufre compris entre 10 et 30
- aluminium compris entre 10 et 50
- titane compris entre 50 et 150
- cuivre compris entre 10 et 60
- azote compris entre 5 et 15,
- carbone égal à 2
- manganèse égal à 270
- phosphore égal à 12
- soufre égal à 22
- aluminium égal à 18
- titane égal à 1
- cuivre égal à 22
- azote égal à 4,
SiO2 | 54 |
ZrO2 | 2 |
P2O5 | 1 |
B2O3 | 14 |
Al2O3 | 3 |
CaO | 4 |
BaO | 5 |
Na2O | 11 |
K2O | 2 |
Li2O | 2 |
NiO | 1 |
CoO | 0,5 |
CuO | 0,5. |
- carbone égal à 2
- manganèse égal à 200
- phosphore égal à 15
- soufre égal à 20
- aluminium égal à 30
- titane égal à 100
- cuivre égal à 40
- azote égal à 9,
Claims (2)
- Pot d'échappement de véhicule automobile, constitué d'une enveloppe extérieure (1), une enveloppe intérieure (2) et une partie centrale (3) constituée de tubulures perforées (4) et de cloisons transversales (5) assemblées entre elles pour former chicanes, caractérisé en ce que l'enveloppe intérieure (2) et ou la partie centrale (3) est réalisée en un acier émaillé, l'acier ayant la composition suivante en millièmes de pour-cent poids :carbone compris entre 0 et 10manganèse compris entre 150 et 400phosphore compris entre 0 et 20soufre compris entre 10 et 30aluminium compris entre 10 et 50titane compris entre 50 et 150cuivre compris entre 10 et 60azote compris entre 5 et 15,
ledit acier étant obtenu par laminage à chaud à une température finale de laminage dépassant le point Ar3 pour obtenir un feuillard, lequel est bobiné à une température supérieure à 600 degrés Celsius, et après laminage à froid, est soumis à un recuit de recristallisation. - Pot d'échappement de véhicule automobile selon la revendication 1, caractérisé en ce que le feuillard est bobiné à une température supérieure à 700 degrés Celsius.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9515087A FR2742802B1 (fr) | 1995-12-20 | 1995-12-20 | Pot d'echappement de vehicule automobile |
FR9515087 | 1995-12-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0780552A1 EP0780552A1 (fr) | 1997-06-25 |
EP0780552B1 true EP0780552B1 (fr) | 2001-09-12 |
Family
ID=9485673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96402533A Expired - Lifetime EP0780552B1 (fr) | 1995-12-20 | 1996-11-26 | Pot d'échappement de véhicule automobile |
Country Status (10)
Country | Link |
---|---|
US (1) | US5739485A (fr) |
EP (1) | EP0780552B1 (fr) |
JP (1) | JPH09189223A (fr) |
KR (1) | KR970044261A (fr) |
AT (1) | ATE205580T1 (fr) |
DE (1) | DE69615137T2 (fr) |
DK (1) | DK0780552T3 (fr) |
ES (1) | ES2161997T3 (fr) |
FR (1) | FR2742802B1 (fr) |
PT (1) | PT780552E (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6571910B2 (en) | 2000-12-20 | 2003-06-03 | Quiet Storm, Llc | Method and apparatus for improved noise attenuation in a dissipative internal combustion engine exhaust muffler |
ATE306569T1 (de) * | 2001-10-29 | 2005-10-15 | Nippon Steel Corp | Stahlblech zur glasemaillierung mit hervorragender bearbeitbarkeit und fischschuppenbeständigkeit und herstellungsverfahren dafür |
US6837235B2 (en) * | 2002-03-14 | 2005-01-04 | Ssw Holdings Company, Inc. | Porcelain oven rack |
US20070272231A1 (en) * | 2006-05-25 | 2007-11-29 | Ssw Holding Company, Inc. | Oven rack having an integral lubricious, dry porcelain surface |
CN108251752B (zh) * | 2018-01-18 | 2019-11-22 | 唐山钢铁集团有限责任公司 | 一种机动车消音片基板及其生产方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2433671A (en) * | 1970-02-06 | 1972-07-20 | Armco Steel Corporation | Product and method for making drawing quality enameling stock |
US4141724A (en) * | 1978-06-21 | 1979-02-27 | United States Steel Corporation | Low-cost, high temperature oxidation-resistant steel |
DE2962334D1 (en) * | 1978-07-07 | 1982-04-29 | Reimbold & Strick | Enamelled sound absorber and method for its enamelling |
US4254684A (en) * | 1979-01-25 | 1981-03-10 | Helpinstill Iii Charles T | Breakdown piano |
DE2917586C2 (de) * | 1979-04-30 | 1982-11-18 | Werner Dr.-Ing. 8450 Amberg Baumann | Auspufftopf aus emailliertem Stahlblech |
US4264684A (en) * | 1979-12-17 | 1981-04-28 | Bethlehem Steel Corporation | Zinc-alloy coated ferrous product resistant to embrittlement |
JPH01275736A (ja) * | 1988-04-28 | 1989-11-06 | Nippon Steel Corp | 加工性に優れた連続鋳造製ほうろう用鋼板およびその製造法 |
EP0434849B1 (fr) * | 1989-07-19 | 1995-10-04 | Kawasaki Steel Corporation | Procede pour fabriquer une tole d'acier a emailler presentant un excellent pouvoir adhesif |
JPH04154919A (ja) * | 1990-10-15 | 1992-05-27 | Sumitomo Metal Ind Ltd | 加工性に優れたほうろう用冷延鋼板の製造法 |
DE9318921U1 (de) * | 1993-12-09 | 1994-02-03 | Audi Ag | Auspuffanlage für eine Diesel-Brennkraftmaschine |
-
1995
- 1995-12-20 FR FR9515087A patent/FR2742802B1/fr not_active Expired - Fee Related
-
1996
- 1996-11-26 DK DK96402533T patent/DK0780552T3/da active
- 1996-11-26 DE DE69615137T patent/DE69615137T2/de not_active Expired - Fee Related
- 1996-11-26 AT AT96402533T patent/ATE205580T1/de not_active IP Right Cessation
- 1996-11-26 EP EP96402533A patent/EP0780552B1/fr not_active Expired - Lifetime
- 1996-11-26 ES ES96402533T patent/ES2161997T3/es not_active Expired - Lifetime
- 1996-11-26 PT PT96402533T patent/PT780552E/pt unknown
- 1996-12-20 US US08/772,272 patent/US5739485A/en not_active Expired - Fee Related
- 1996-12-20 KR KR1019960069233A patent/KR970044261A/ko active IP Right Grant
- 1996-12-20 JP JP8355278A patent/JPH09189223A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DK0780552T3 (da) | 2001-12-31 |
KR970044261A (ko) | 1997-07-26 |
US5739485A (en) | 1998-04-14 |
ES2161997T3 (es) | 2001-12-16 |
PT780552E (pt) | 2002-02-28 |
FR2742802A1 (fr) | 1997-06-27 |
FR2742802B1 (fr) | 1998-01-30 |
EP0780552A1 (fr) | 1997-06-25 |
JPH09189223A (ja) | 1997-07-22 |
ATE205580T1 (de) | 2001-09-15 |
DE69615137D1 (de) | 2001-10-18 |
DE69615137T2 (de) | 2002-06-20 |
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