EP0366646A1 - Procédé de fabrication d'une pièce plaquée - Google Patents
Procédé de fabrication d'une pièce plaquée Download PDFInfo
- Publication number
- EP0366646A1 EP0366646A1 EP89890278A EP89890278A EP0366646A1 EP 0366646 A1 EP0366646 A1 EP 0366646A1 EP 89890278 A EP89890278 A EP 89890278A EP 89890278 A EP89890278 A EP 89890278A EP 0366646 A1 EP0366646 A1 EP 0366646A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- temperature
- cooling rate
- clad
- materials
- 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.)
- Granted
Links
Classifications
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
Definitions
- the invention relates to a method for producing a plated, in particular roll-clad, molded body consisting of a base material and at least one high-alloy, corrosion-resistant support material.
- Clad molded articles are required for certain areas of use, the base material of which combines high strength with high toughness even at low temperatures and whose support material is particularly corrosion-resistant. These requirements exist for certain components in the offshore industry, in the chemical industry and flue gas desulphurization plants.
- a method of the type mentioned at the outset has already become known from AT-PS 384 245, in which a coating material having 3 to 7% by weight Mo is applied by plating to a base material.
- the composite material obtained in this way has sufficient ductility for apparatus construction and a relatively good corrosion resistance.
- the support material is severely attacked by the highly corrosive stress, which makes the devices unusable for further use under corrosive conditions.
- the invention aims to further improve the corrosion resistance to organic and inorganic acids, in particular H2S, H2SO4, HCl and oxidizing acids or acid mixtures, such as aqua regia, and to achieve higher resistance even at high acid temperatures and higher pressure.
- organic and inorganic acids in particular H2S, H2SO4, HCl and oxidizing acids or acid mixtures, such as aqua regia
- the method according to the invention consists in a method for producing a plated, in particular roll-clad, molded body consisting of a base material and at least one high-alloy, rust-free support material, whereby - the base material up to 0.25% by weight of C, 0.10 to 1.5% by weight of Si, 0.50 to 1.70% by weight of Mn, up to 1.00% by weight of Cr, to 0.30% by weight Cu, up to 0.50% by weight Mo, up to 3.00% by weight Ni, up to 0.05% by weight Nb, up to 0.10% by weight V, to 0.02% by weight of N, up to 0.04% by weight of P, up to 0.025% by weight of S, remainder iron and melting-related impurities,% Nb +% Ti +% V less than or equal to 0.20% -% and (% Al +% Ti +% Zr).
- % N is greater than or equal to 0.005% by weight, - the coating material made of 0.001 to 0.1% by weight of C, 0.001 to 2.0% by weight of Si, 0.01 to 5.0% by weight of Mn, 0.5 to 40.0% by weight Cr, 35.0 to 80.0 wt.% Ni, 7.0 to 30.0 wt.% Mo, to 5.0 wt.% Cu, to 1.0 wt.% Ti, to 1 .0% by weight of Nb, up to 0.04% by weight of P, up to 5.0% by weight of W, up to 0.025% by weight of 5, balance iron and melting-related impurities, and - After plating, the materials are brought to a temperature between 1000 and 1150 ° C, then to a temperature between 700 and 450 ° C, preferably between 620 and 550 ° C, with a cooling rate between 10 ° C / s and 1 ° C / s quenched and then cooled in still air at a cooling rate between 15 ° C / min
- Essential for the invention is further the controlled rapid cooling from austenitizing temperature to 700 ° C to 450 ° C and the subsequent slow cooling.
- austenitizing temperature to 700 ° C to 450 ° C
- subsequent slow cooling With this method, the corrosion resistance deteriorating precipitates in the support material are surely suppressed, whereas the base material is converted into a fine ferrite and pearlite structure or acicular ferrite.
- the process is advantageously carried out in such a way that the materials are roll-plated in such a way that a temperature between 1000 and 1060 ° C. is reached at the end of the rolling process, and the austenitizing temperature is then rapidly cooled.
- the fact that the support materials are still in the precipitation-free state before the rapid cooling ensures that the roll-clad molded articles produced in this way have the highest possible corrosion properties.
- the materials are quenched to a temperature between 620 and 550 ° C with a cooling rate between 7 ° C / s and 3 ° C / s will.
- Such a quenching treatment of the composite material can further increase the strength values of the base material and at the same time ensure excellent corrosion properties of the support material.
- the composite material is advantageously cooled further in still air at a cooling rate of approximately 10 ° C./min.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Glass Compositions (AREA)
- Chemically Coating (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0266688A AT397819B (de) | 1988-10-28 | 1988-10-28 | Verfahren zum herstellen eines plattierten formkörpers |
AT2666/88 | 1988-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0366646A1 true EP0366646A1 (fr) | 1990-05-02 |
EP0366646B1 EP0366646B1 (fr) | 1993-11-24 |
Family
ID=3538358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89890278A Expired - Lifetime EP0366646B1 (fr) | 1988-10-28 | 1989-10-23 | Procédé de fabrication d'une pièce plaquée |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0366646B1 (fr) |
AT (2) | AT397819B (fr) |
DE (1) | DE58906253D1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0521774A1 (fr) * | 1991-07-03 | 1993-01-07 | Creusot-Loire Industrie | Procédé de fabrication d'une tôle plaquée comportant une couche inoxydable et tôle plaquée obtenue |
US6280540B1 (en) * | 1994-07-22 | 2001-08-28 | Haynes International, Inc. | Copper-containing Ni-Cr-Mo alloys |
WO2017186112A1 (fr) * | 2016-04-26 | 2017-11-02 | 宝山钢铁股份有限公司 | Plaque d'acier de protection présentant d'excellentes performances de traitement par pliage à froid et son procédé de fabrication |
WO2017186113A1 (fr) * | 2016-04-26 | 2017-11-02 | 宝山钢铁股份有限公司 | Tôle d'acier composite protectrice et son procédé de fabrication |
US10112254B2 (en) | 2014-08-21 | 2018-10-30 | Huntington Alloys Corporation | Method for making clad metal pipe |
US11400542B2 (en) | 2016-11-18 | 2022-08-02 | Sms Group Gmbh | Method and device for producing a continuous strip-shaped composite material |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT210235B (de) * | 1955-03-15 | 1960-07-25 | Phoenix Rheinrohr Ag | Verfahren zur Herstellung von walzschweißplattierten Stählen, vorzugsweise Blechen |
AT384245B (de) * | 1986-02-21 | 1987-10-12 | Voest Alpine Ag | Verfahren zum herstellen eines plattierten formkoerpers |
-
1988
- 1988-10-28 AT AT0266688A patent/AT397819B/de not_active IP Right Cessation
-
1989
- 1989-10-23 DE DE89890278T patent/DE58906253D1/de not_active Expired - Fee Related
- 1989-10-23 EP EP89890278A patent/EP0366646B1/fr not_active Expired - Lifetime
- 1989-10-23 AT AT89890278T patent/ATE97697T1/de not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT210235B (de) * | 1955-03-15 | 1960-07-25 | Phoenix Rheinrohr Ag | Verfahren zur Herstellung von walzschweißplattierten Stählen, vorzugsweise Blechen |
AT384245B (de) * | 1986-02-21 | 1987-10-12 | Voest Alpine Ag | Verfahren zum herstellen eines plattierten formkoerpers |
Non-Patent Citations (1)
Title |
---|
VOLK: NICKEL UND NICKELLEGIERUNGEN * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0521774A1 (fr) * | 1991-07-03 | 1993-01-07 | Creusot-Loire Industrie | Procédé de fabrication d'une tôle plaquée comportant une couche inoxydable et tôle plaquée obtenue |
FR2678642A1 (fr) * | 1991-07-03 | 1993-01-08 | Creusot Loire | Procede de fabrication d'une tole plaquee comportant une couche inoxydable et tole plaquee obtenue. |
US6280540B1 (en) * | 1994-07-22 | 2001-08-28 | Haynes International, Inc. | Copper-containing Ni-Cr-Mo alloys |
US10112254B2 (en) | 2014-08-21 | 2018-10-30 | Huntington Alloys Corporation | Method for making clad metal pipe |
WO2017186112A1 (fr) * | 2016-04-26 | 2017-11-02 | 宝山钢铁股份有限公司 | Plaque d'acier de protection présentant d'excellentes performances de traitement par pliage à froid et son procédé de fabrication |
WO2017186113A1 (fr) * | 2016-04-26 | 2017-11-02 | 宝山钢铁股份有限公司 | Tôle d'acier composite protectrice et son procédé de fabrication |
US10882277B2 (en) | 2016-04-26 | 2021-01-05 | Baoshan Iron & Steel Co., Ltd.d | Protective composite steel plate and method for manufacturing same |
US10894388B2 (en) | 2016-04-26 | 2021-01-19 | Baoshan Iron & Steel Co., Ltd. | Protective steel plate with excellent cold-bend processing performance and method for manufacturing same |
US11400542B2 (en) | 2016-11-18 | 2022-08-02 | Sms Group Gmbh | Method and device for producing a continuous strip-shaped composite material |
Also Published As
Publication number | Publication date |
---|---|
AT397819B (de) | 1994-07-25 |
DE58906253D1 (de) | 1994-01-05 |
ATE97697T1 (de) | 1993-12-15 |
EP0366646B1 (fr) | 1993-11-24 |
ATA266688A (de) | 1993-11-15 |
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