DE1954031A1 - Process for the production of bimetal sheets from stainless steel and aluminum bronze - Google Patents
Process for the production of bimetal sheets from stainless steel and aluminum bronzeInfo
- Publication number
- DE1954031A1 DE1954031A1 DE19691954031 DE1954031A DE1954031A1 DE 1954031 A1 DE1954031 A1 DE 1954031A1 DE 19691954031 DE19691954031 DE 19691954031 DE 1954031 A DE1954031 A DE 1954031A DE 1954031 A1 DE1954031 A1 DE 1954031A1
- Authority
- DE
- Germany
- Prior art keywords
- aluminum bronze
- sheets
- production
- steel
- stainless steel
- 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.)
- Pending
Links
Classifications
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
- B23K35/002—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of light metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
- B23K35/004—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of a metal of the iron group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/012—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Heat Treatment Of Articles (AREA)
- Arc Welding In General (AREA)
Description
Compagnie des Ateliers et Forges de la loire, ParisCompagnie des Ateliers et Forges de la loire, Paris
"Verfahren zur Herstellung von Bimetallblechen aus rostfreiem auoooho Stahl und Aluminiumbronze""Process for the production of bimetal sheets from stainless auoooho steel and aluminum bronze "
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von aus Aluminiumbronze und rostfreiem Stahl bestehenden Bimetallblechen durch Auftragsschweißung im Lichtbogen. Außerdem richtet sich die Erfindung auf nach diesem Verfahren hergestellte Bleche, insbesondere solchen, die als Rohrbleche für Wärmeaustauscher zum Einsatz kommen sollen.The invention relates to a method of manufacture of bimetallic sheets made of aluminum bronze and stainless steel by build-up welding in an arc. The invention is also directed to those produced by this method Sheets, especially those that are to be used as tube sheets for heat exchangers.
Die Auftragsschweißung von Aluminiumbronze im lichtbogen auf austenitische und austeno-ferritische rostfreie Stähle hat den Nachteil, daß im Ausgangsstahl unter der Schweißraupe Hisse entstehen.The build-up welding of aluminum bronze in the arc on austenitic and austeno-ferritic stainless steels has the disadvantage that heaps arise in the starting steel under the weld bead.
Das Verfahren gemäß der Erfindung erlaubt die Verhinderung dieser Rissebildung und die Herstellung von unversehrten Bimetallblechen, die ohne Risiko insbesondere für die Herstellung von Rohrblechen für Wärmeaustauscher verwendet werden können, die im allgemeinen im Falle von Korrosion durch Salzwasser verwendet werden.The method according to the invention allows the prevention of this crack formation and the production of intact bimetal sheets, which are used without risk in particular for the manufacture of tube sheets for heat exchangers which are generally used in case of salt water corrosion.
00 98 20/ 13 400 98 20/13 4
Das Verfahren gemäß der Erfindung zur Herstellung von Bimetallblechen aus rostfreiem austenitischem Stahl und Aluminiumbronze kennzeichnet sich im wesentlichen dadurch, daß auf ein Ausgangsblech aus austenitischem oder aus teno-ferrit is ehern Stahl eine Zwischenschicht aus einem rostfreien austeno-ferritischem Stahl solcher Zusammensetzung durch Auftragsschweißung aufgetragen wird, daß der Ferritgehalt zwischen 10 ^ und 20 $> liegt, worauf durch Schweißung eine Aluminiumbronze aufgetragen wird.The method according to the invention for the production of bimetallic sheets made of austenitic stainless steel and aluminum bronze is essentially characterized in that an intermediate layer of an austenitic stainless steel of this composition is applied by build-up welding to a starting sheet made of austenitic or teno-ferritic steel that the ferrite content is between 10 ^ and 20 $> , whereupon an aluminum bronze is applied by welding.
Insbesondere ist die Zwischenschicht aus austeno-ferritischem Stahl vom Typ: 17 - 22 $> Cr, 8 - 12 £ Ni, 2 - 4 # Mo.In particular, the intermediate layer made of austeno-ferritic steel is of the type: 17 - 22 $> Cr, 8 - 12 £ Ni, 2 - 4 # Mo.
Gemäß einem besonderen Merkmal der Erfindung besteht die Zwischenschicht aus einer Abwandlung eines von der Anmelderin bereits hergestellten Stahls mit folgender Analyse:According to a particular feature of the invention, there is the intermediate layer from a modification of a steel already manufactured by the applicant with the following analysis:
Zur Herstellung der Zwischenschicht und der Auftrags schweißung aus Aluminiumbronze können alle manuellen oder automatischen bekannten Schweißverfahren eingesetzt werden. Das Interesse an einer derartigen Herstellung besteht insbesondere bei der Herstellung von Bimetall-Rohrblechen für Wärmeaustauscher.For the production of the intermediate layer and the build-up welding from aluminum bronze, all manual or automatic known welding processes are used. The interest in such a production is particularly in the production of bimetal tube sheets for heat exchangers.
Die gemäß der Erfindung hergestellten Bleche weisen folgende Vorteile auf:The sheets produced according to the invention have the following advantages:
Das Metall ist garantiert gesund oder unversehrt; die Bleche besitzen eine höhere Widerstandsfähigkeit gegen mechanische Beanspruchungen;The metal is guaranteed to be healthy or intact; the sheets have a higher resistance to mechanical stress;
die Bleche besitzen eine bessere Widerstandsfähigkeit gegen Korrosion.the sheets have a better resistance to corrosion.
Im folgenden soll zum besseren Verständnis der Erfindung einThe following is intended for a better understanding of the invention
009820/13 A B009820/13 A B
Ausführungsbeispiel von vier Rohrblechen für Wärmeaustauscher von 994 um Durchmesser beschrieben werden, wobei Salzwasser als flüssiger Wärmeträger verwendet wurde.Embodiment of four tube sheets for heat exchangers of 994 μm diameter are described, with salt water as liquid heat transfer medium was used.
Für jedes der Bleche wurde ausgegangen von einem Metall auf der Basis rostfreien austenitischen Stahls mit der Analyse: 18 $> Cr, 12 io Ni, weniger als 0,030 # C und mit einer Dicke von 53 mm. Es wurde durch Auftragsschweißung eine Zwischenschicht aus rostfreiem austeno-ferritisehern Stahl folgender Analyse aufgebracht: 20 $> Cr, 8 1> ITi, 2,5 # Mo, 1,5 % Cu, weniger als 0,050 # C.For each of the sheets a metal based on stainless austenitic steel was assumed with the analysis: 18 $> Cr, 12 io Ni, less than 0.030 # C and with a thickness of 53 mm. An intermediate layer of stainless austeno-ferritic steel was applied by build-up welding of the following analysis: $ 20> Cr, 8 1> ITi, 2.5 # Mo, 1.5 % Cu, less than 0.050 # C.
Anschließend wurde durch Auftragsschweißung Aluminiumbronze in einer Stärke von 15 mm aufgetragen.Aluminum bronze with a thickness of 15 mm was then applied by build-up welding.
Die Bleche wurden anschließend ohne irgendwelche Rißbildung mit 1021 Löchern mit einem Durchmesser von 3/4" gelocht, wobei manßi-Metallrohre der gleichen Art wie die Ausgangsplatten erhielt. Der Zusammenbau war daher immer homogen und wirtschaftlich. The sheets were then punched with 1021 holes 3/4 "in diameter without any cracking, using Manzi metal tubes the same type as the original plates. The assembly was therefore always homogeneous and economical.
- Patentansprüche: -- Patent claims: -
009820/13 Z: a009820/13 Z: a
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR171578 | 1968-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1954031A1 true DE1954031A1 (en) | 1970-05-14 |
Family
ID=8656188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691954031 Pending DE1954031A1 (en) | 1968-10-28 | 1969-10-27 | Process for the production of bimetal sheets from stainless steel and aluminum bronze |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1954031A1 (en) |
| FR (1) | FR1590034A (en) |
| GB (1) | GB1243894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0245705A1 (en) * | 1986-05-06 | 1987-11-19 | Asea Brown Boveri Aktiengesellschaft | Electrochemical storage cell |
-
1968
- 1968-10-28 FR FR1590034D patent/FR1590034A/fr not_active Expired
-
1969
- 1969-10-27 DE DE19691954031 patent/DE1954031A1/en active Pending
- 1969-10-27 GB GB5251369A patent/GB1243894A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0245705A1 (en) * | 1986-05-06 | 1987-11-19 | Asea Brown Boveri Aktiengesellschaft | Electrochemical storage cell |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1590034A (en) | 1970-04-06 |
| GB1243894A (en) | 1971-08-25 |
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