EP0366646B1 - Procédé de fabrication d'une pièce plaquée - Google Patents
Procédé de fabrication d'une pièce plaquée Download PDFInfo
- Publication number
- EP0366646B1 EP0366646B1 EP89890278A EP89890278A EP0366646B1 EP 0366646 B1 EP0366646 B1 EP 0366646B1 EP 89890278 A EP89890278 A EP 89890278A EP 89890278 A EP89890278 A EP 89890278A EP 0366646 B1 EP0366646 B1 EP 0366646B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- gew
- bis
- cooling rate
- temperature
- 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
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 238000005253 cladding Methods 0.000 claims abstract 4
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims 2
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 11
- 239000002131 composite material Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 229910000856 hastalloy Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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 of Mo is applied to a base material by plating and the shaped body thus obtained is heated to 1000 to 1100 ° C. and heated to a cooling rate of 1 to 10 ° C / s to 550 to 620 ° C, and then cooling in still air with a cooling rate of 5 to 15 ° C / min.
- the composite material obtained in this way has sufficient ductility for apparatus construction and a relatively good corrosion resistance.
- 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
- AT-PS 210 235 describes roll-clad steel sheets, the material of which, similar to the invention, consists of a Hastelloy alloy, but does not specify any heat treatment
- Essential to the invention is the heat treatment with the controlled rapid cooling from austenitizing temperature to 700 ° C to 450 ° C and the 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. Such a heat treatment cannot be found in the prior art for Hastelloy or for steel coated with Hastelloy.
- 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)
- Glass Compositions (AREA)
- Chemically Coating (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Claims (4)
- Procédé pour la fabrication d'un corps moulé plaqué, en particulier plaqué par laminage, et qui consiste en un matériau de base et au moins un matériau de placage fortement allié, ne rouillant pas, selon lequel :- le matériau de base contient jusqu'à 0,25 % en poids de C, de 0,10 à 1,5 % en poids de Si, 0,50 à 1,70 % en poids de Mn, jusqu'à 1,00 % en poids de Cr, jusqu'à 0,30 % en poids de Cu, jusqu'à 0,50 % en poids de Mo, jusqu'à 3,00 % en poids de Ni, jusqu'à 0,05 % en poids de Nb, jusqu'à 0,10 % en poids de V, jusqu'à 0,02 % en poids de N, jusqu'à 0,04 % en poids de P, jusqu'à 0,025 % en poids de S, le solde consistant en fer et impuretés provenant de la fusion, sous réserve que Nb % + Ti % + V % est inférieur à 0,20 % en poids, et (Al % + Ti % + Zr %) · N % est supérieur à 0,005 % en poids,- le matériau de placage consiste en 0,001 à 0,1 % en poids de C, 0,001 à 2,0 % en poids de Si, 0,01 à 5,0 % en poids de Mn, 0,5 à 40,0 % en poids de Cr, 35,0 à 80,0 % en poids de Ni, 7,0 à 30,0 % en poids de Mo, jusqu'à 5,0 % en poids de Cu, jusqu'à 1,0 % en poids de Ti, jusqu'à 1,0 % en poids de Nb, jusqu'à 0,04 % en poids de P, jusqu'à 5,0 % en poids de W, jusqu'à 0,025 % en poids de S, le solde consistant en fer et impuretés provenant de la fusion, et- les matériaux, après le placage, sont portés à une température de 1.000 à 1.150°C, puis refroidis jusqu'à une température de 700 à 450°C, de préférence de 620 à 550°C, à une vitesse de 10°C/sec. à 1°C/sec., puis finalement refroidis dans l'air au repos à une vitesse de 15°C/min. à 5°C/min.
- Procédé selon la revendication 1, caractérisé en ce que les matériaux, après le placage par laminage, sont à une température de 1.000 à 1.060°C.
- Procédé selon la revendication 1 ou 2, caractérisé en ce que les matériaux sont refroidis rapidement à une température de 620 à 550°C à une vitesse de 7°C/sec. à 3°C/sec.
- Procédé selon l'une des revendications 1, 2 ou 3, caractérisé en ce que le refroidissement dans l'air au repos est réalisé à une vitesse d'environ 10°C/min.
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 EP0366646A1 (fr) | 1990-05-02 |
| EP0366646B1 true 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) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2678642B1 (fr) * | 1991-07-03 | 1994-08-26 | 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 |
| CN107310218B (zh) | 2016-04-26 | 2019-03-29 | 宝山钢铁股份有限公司 | 一种复合防弹钢板及其制造方法 |
| CN107310219B (zh) | 2016-04-26 | 2019-03-29 | 宝山钢铁股份有限公司 | 一种冷弯加工性能优良的防弹钢板及其制造方法 |
| DE102017220416A1 (de) | 2016-11-18 | 2018-05-24 | Sms Group Gmbh | Verfahren und Vorrichtung zur Herstellung eines kontinuierlichen bandförmigen Verbundmaterials |
Family Cites Families (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 AT AT89890278T patent/ATE97697T1/de not_active IP Right Cessation
- 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
Non-Patent Citations (1)
| Title |
|---|
| VOLK: NICKEL UND NICKELLEGIERUNGEN 1970, Seiten 392-395, Springer-Verlag Berlin, DE * |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA266688A (de) | 1993-11-15 |
| ATE97697T1 (de) | 1993-12-15 |
| AT397819B (de) | 1994-07-25 |
| DE58906253D1 (de) | 1994-01-05 |
| EP0366646A1 (fr) | 1990-05-02 |
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