CA1196552A - Making a mold for continuous casting - Google Patents
Making a mold for continuous castingInfo
- Publication number
- CA1196552A CA1196552A CA000398271A CA398271A CA1196552A CA 1196552 A CA1196552 A CA 1196552A CA 000398271 A CA000398271 A CA 000398271A CA 398271 A CA398271 A CA 398271A CA 1196552 A CA1196552 A CA 1196552A
- Authority
- CA
- Canada
- Prior art keywords
- tube
- mold
- copper
- age
- alloy
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/059—Mould materials or platings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Metal Extraction Processes (AREA)
Abstract
MAKING MOLDS FOR CONTINUOUS CASTING
ABSTRACT OF THE DISCLOSURE
An age-hardening copper alloy is used, alloy compo-nents being zirconium, nickel, chromium, cobalt, phosphorus, and beryllium, to make a tubular blank and solution heat-treating same; after a cold-working step, the pre-sized blank is age-hardened at from 400°C to 600°C for at least 15 minutes and explosion-formed in order to obtain the desired size, shape, and dimensions.
ABSTRACT OF THE DISCLOSURE
An age-hardening copper alloy is used, alloy compo-nents being zirconium, nickel, chromium, cobalt, phosphorus, and beryllium, to make a tubular blank and solution heat-treating same; after a cold-working step, the pre-sized blank is age-hardened at from 400°C to 600°C for at least 15 minutes and explosion-formed in order to obtain the desired size, shape, and dimensions.
Description
\
~ ~ gc~ ~ ~ KAB--7240 BACKGROUND OF THE INVENTION
3 The present invention relates to a metho~ of making 4 tubular, curved or straight molds for continuous casting, under utilization of a copper alloy.
7 German printed patent application 25 33 528 discloses 8 a method of making such a mold by deforming a copper or copper g alloy blank by means of explosives for forming the blank in order to obtain the desired contour of the mold. This 11 method offers the advantage of a high-quality surface of the 12 resulting mold; also, the dimensions of the cavity attained in this fashion are very accurate. Additionally, the surface 14 o~ the mold is actually harclened. Assumlng, for instance, an original hardness of 40 Rockwell B, the explosive-orming 16 method above will result in a hardness of from 50 to 75 Rock-17 well B.
~8 i9 The explosion deforming or forming as described is disadvantaged by the fact that the resulting wall thickness 21 is too low to permit any significant subsequent reductionl 22 e.g., by means of cold-workingO Consequently, the overall 23 strength of the mold and, therefore, the stability as to 24 shape and in~egrity of the cross section is fairly poor.
Moreover, cold-working is usually employed in order to 26 strengthen the material; but as soon as the temperature 1 rises to 350C, that process reverses itself so that a
~ ~ gc~ ~ ~ KAB--7240 BACKGROUND OF THE INVENTION
3 The present invention relates to a metho~ of making 4 tubular, curved or straight molds for continuous casting, under utilization of a copper alloy.
7 German printed patent application 25 33 528 discloses 8 a method of making such a mold by deforming a copper or copper g alloy blank by means of explosives for forming the blank in order to obtain the desired contour of the mold. This 11 method offers the advantage of a high-quality surface of the 12 resulting mold; also, the dimensions of the cavity attained in this fashion are very accurate. Additionally, the surface 14 o~ the mold is actually harclened. Assumlng, for instance, an original hardness of 40 Rockwell B, the explosive-orming 16 method above will result in a hardness of from 50 to 75 Rock-17 well B.
~8 i9 The explosion deforming or forming as described is disadvantaged by the fact that the resulting wall thickness 21 is too low to permit any significant subsequent reductionl 22 e.g., by means of cold-workingO Consequently, the overall 23 strength of the mold and, therefore, the stability as to 24 shape and in~egrity of the cross section is fairly poor.
Moreover, cold-working is usually employed in order to 26 strengthen the material; but as soon as the temperature 1 rises to 350C, that process reverses itself so that a
2 highly used mold wears out rather quickly. The mold's strength
3 can be increased to some extent throu~h appropriate selec-
4 tion of the copper alloy constituents. Unfortunately, the heat conduction goes down; and such a mold may have the 6 tendency of cracking in the surface level of the molten 7 material.
11 It is an object of the present invention to provide 12 a new and improved method of making molds for continuous 13 casting without restrictions as to wall thickness, preferably 14 for making castings of a large diameter. More~ver, the mold is to have (a) a very great strength over its entire wall 16 thickness, (b) a high softening temperature, and (c) a high 17 thermal strength. Moreover, it should be possible to select 18 alloying components so that magnetic stirring is made possible;
19 furthermore, electrical conduction and heat transfer charac-teristics should be subject to control.
22 It is, therefore, a specific ob~ect of the present 23 invention to provide a new and improved method for makiny 24 molds for continuous casting under utilization of the explosive type forming technique.
2~ -3-~3qj~5~
In accordance with the preferred embodiment of the present inven-tion, the objects thereof are obtained by using a tubular blank of an age-hardening copper alloy which blank is solution heat treated at a temperature within a range that is appropriate for the particular alloy; alternatively, the tubular blank is formed at such a temperature; subsequently, the tube is age hardened for at least 15 minutes at a temperature of between ~00C and 600 C; finally, the tube is explosion-formed in order to obtain its final dimensions. In the case of making a curved mold, a bending step is inter-posed between the annealing and the age-hardening. The mold walls, part-icularly of the cavity, can be straight or curved, round or rectangular,tapered or conical.
Molds made by the afore-described steps have strength values which are considerably higher than the ones in conventionally made molds, the rea-son being that an age-hardening copper alloy has been used. The strength in-crease during age-hardening at 400 C to 600 C is attained by internal pre-cipitation. The thws improved mold lasts longer, retains its shape better, particularly under thermal load and tension, and wears out less, particularly because of reduced abrasion.
The mechanical strength of the mold can be increased in further-ance of the invention by mechanically cold-working the annealed and soft tube. ~or instance, a mandrel is inserted into the tube prior to age-hardening, the mandrel being curved or straight as desired; and together, they are pulled through a drawing die. The degree of cold deformation may be chosen to be between approximately 2% up to approximately 30%, depending upon desired strength enhancement.
The subsequent age hardening results :in very high strength values;
there:Eorc, lt ls desirable to size the mol.d already after the initial anneal-ing in orcler to obtain the desired geometry and dimensions o:E the mold, in part:icular, o:E its c.avity. During age hardening, some distortion may occur, but that will be compensated by the final explosion-:Eorming step; and one ob-tains an optimum product, indeed.
_~ _ . . , ~.:
"" ,~ .
The copper alloy to be used depends upon the specific requirements for the type o-f mold and its intended use. An age-hardening alloy for a wide variety of uses will include 0.3 to 1.2 chromium and 0.05% to 0.2%
zirconium, the remainder being copper. These and all following percentages are by weight. This particular copper alloy exhibits the requisite high thermal conductivity for a mold for continuous casting. Conventional molds are made from SF copper or a copper silver phosphorous alloy; but the pre-sently proposed copper chromium zirconium alloy, worked in accordance with the inven-tion~ has a much higher temperature s~rength and ~36~
1 persistence to wear and abrasion; such a mold is almost 2 completely free from contour deformation and distortion 3 and has a long life.
EXAMPLES
7 (1) In the followingl the making of a copper chromium zirconium 8 mold will be described w-ith reference to a specific example:
g A copper alloy having 0.7~ chromium and 0.18% zirconium, 11 the remainder being copper and the usual impurities, was used 12 to cast a pin, i.e., a round, cylindrical blank or billet.
13 This blank or billet was extruded at 1,030C in order to 14 obtain a tube, which was then qllenched in water. This parti-cular working and tube-forming step served also as the initial 16 solution heat treatment or annealing step for the material.
Certain tubular/
17 /lengths were cut from this tube and pre-bent in an appropriate 18 bending machinQ.
i9 A circular die member was introduced into such a cut 21 tube and explosive charges were uniformly distributed around 22 the periphery of that tube and fired. This particular step 23 served as a cold-working step to enhance the strength of 24 the material and to pre-siæe the tube. Thereafter, the die member was removed from the tube, and the latter was 26 age-hardened at 475C for four-and-one-half hours. The shape ~ KAs-7240 ~S~
1 of the thus treated tube was slightly distorted. Therefore, 2 after cooling a die was inserted, having a cross section 3 which did exactly correspond to the cross section of the 4 mold ca~ity to be made. This die was slightly curved and, of course, the orientation of the curvatures have to match.
6 Thereafter, another explosion deformation step was performed, 7 just as described above, which constituted another cold-8 working step hy means of which the mold attained the desired 9 dimensions.
11 The mold made :ln this manner did exhibit the following 12 properties:
14 Thermal conductivity87% (of pure copper) So~tening temperature 525C
16 Hardness HB 2.5/62.5 145 17 Tensile strength442 Newtons/mm 18 Yield point (elongation at rupture) 26%
19 High temperature strength:
220C 380 N/mm2 21 350C 318 N/mm2 22 10% drop in strength at room temperature after 23 one hour of age-hardening.
2~
This mold has retained its dimensions even after 26 450 runs of casting charges, particularly in the level of IL L9~`3s552 K~B-7240 1 the surface of the molt~n material. Only the bottom of 2 the mold exhibited some wear.
4 (2) A straight mold with conical (tapered), rectangular
11 It is an object of the present invention to provide 12 a new and improved method of making molds for continuous 13 casting without restrictions as to wall thickness, preferably 14 for making castings of a large diameter. More~ver, the mold is to have (a) a very great strength over its entire wall 16 thickness, (b) a high softening temperature, and (c) a high 17 thermal strength. Moreover, it should be possible to select 18 alloying components so that magnetic stirring is made possible;
19 furthermore, electrical conduction and heat transfer charac-teristics should be subject to control.
22 It is, therefore, a specific ob~ect of the present 23 invention to provide a new and improved method for makiny 24 molds for continuous casting under utilization of the explosive type forming technique.
2~ -3-~3qj~5~
In accordance with the preferred embodiment of the present inven-tion, the objects thereof are obtained by using a tubular blank of an age-hardening copper alloy which blank is solution heat treated at a temperature within a range that is appropriate for the particular alloy; alternatively, the tubular blank is formed at such a temperature; subsequently, the tube is age hardened for at least 15 minutes at a temperature of between ~00C and 600 C; finally, the tube is explosion-formed in order to obtain its final dimensions. In the case of making a curved mold, a bending step is inter-posed between the annealing and the age-hardening. The mold walls, part-icularly of the cavity, can be straight or curved, round or rectangular,tapered or conical.
Molds made by the afore-described steps have strength values which are considerably higher than the ones in conventionally made molds, the rea-son being that an age-hardening copper alloy has been used. The strength in-crease during age-hardening at 400 C to 600 C is attained by internal pre-cipitation. The thws improved mold lasts longer, retains its shape better, particularly under thermal load and tension, and wears out less, particularly because of reduced abrasion.
The mechanical strength of the mold can be increased in further-ance of the invention by mechanically cold-working the annealed and soft tube. ~or instance, a mandrel is inserted into the tube prior to age-hardening, the mandrel being curved or straight as desired; and together, they are pulled through a drawing die. The degree of cold deformation may be chosen to be between approximately 2% up to approximately 30%, depending upon desired strength enhancement.
The subsequent age hardening results :in very high strength values;
there:Eorc, lt ls desirable to size the mol.d already after the initial anneal-ing in orcler to obtain the desired geometry and dimensions o:E the mold, in part:icular, o:E its c.avity. During age hardening, some distortion may occur, but that will be compensated by the final explosion-:Eorming step; and one ob-tains an optimum product, indeed.
_~ _ . . , ~.:
"" ,~ .
The copper alloy to be used depends upon the specific requirements for the type o-f mold and its intended use. An age-hardening alloy for a wide variety of uses will include 0.3 to 1.2 chromium and 0.05% to 0.2%
zirconium, the remainder being copper. These and all following percentages are by weight. This particular copper alloy exhibits the requisite high thermal conductivity for a mold for continuous casting. Conventional molds are made from SF copper or a copper silver phosphorous alloy; but the pre-sently proposed copper chromium zirconium alloy, worked in accordance with the inven-tion~ has a much higher temperature s~rength and ~36~
1 persistence to wear and abrasion; such a mold is almost 2 completely free from contour deformation and distortion 3 and has a long life.
EXAMPLES
7 (1) In the followingl the making of a copper chromium zirconium 8 mold will be described w-ith reference to a specific example:
g A copper alloy having 0.7~ chromium and 0.18% zirconium, 11 the remainder being copper and the usual impurities, was used 12 to cast a pin, i.e., a round, cylindrical blank or billet.
13 This blank or billet was extruded at 1,030C in order to 14 obtain a tube, which was then qllenched in water. This parti-cular working and tube-forming step served also as the initial 16 solution heat treatment or annealing step for the material.
Certain tubular/
17 /lengths were cut from this tube and pre-bent in an appropriate 18 bending machinQ.
i9 A circular die member was introduced into such a cut 21 tube and explosive charges were uniformly distributed around 22 the periphery of that tube and fired. This particular step 23 served as a cold-working step to enhance the strength of 24 the material and to pre-siæe the tube. Thereafter, the die member was removed from the tube, and the latter was 26 age-hardened at 475C for four-and-one-half hours. The shape ~ KAs-7240 ~S~
1 of the thus treated tube was slightly distorted. Therefore, 2 after cooling a die was inserted, having a cross section 3 which did exactly correspond to the cross section of the 4 mold ca~ity to be made. This die was slightly curved and, of course, the orientation of the curvatures have to match.
6 Thereafter, another explosion deformation step was performed, 7 just as described above, which constituted another cold-8 working step hy means of which the mold attained the desired 9 dimensions.
11 The mold made :ln this manner did exhibit the following 12 properties:
14 Thermal conductivity87% (of pure copper) So~tening temperature 525C
16 Hardness HB 2.5/62.5 145 17 Tensile strength442 Newtons/mm 18 Yield point (elongation at rupture) 26%
19 High temperature strength:
220C 380 N/mm2 21 350C 318 N/mm2 22 10% drop in strength at room temperature after 23 one hour of age-hardening.
2~
This mold has retained its dimensions even after 26 450 runs of casting charges, particularly in the level of IL L9~`3s552 K~B-7240 1 the surface of the molt~n material. Only the bottom of 2 the mold exhibited some wear.
4 (2) A straight mold with conical (tapered), rectangular
5 cross section was made from the same copper chromium zirconium
6 alloy, in accordance with the following example. This mold
7 was still stronger.
9 A round tube was made by extrusion at 950C, and the rectangular (square) cross section resulted from a subsequent solution heat treated /
11 drawing step. This square tube was / for 45 minutes 12 at 990C. Following cooling, suitable lengths were cut; and }3 each length was sized and cold-worked by means of a mandrel 14 and a die under reduction of the wall thickness by 15% in order to obtain the final ~;men~ion. Thereafter, the tubular 16 pieces were age-hardened for six hours at 450C. The final 17 sizing was obtained by the above-mentioned explosion deforma-18 tion.
~.9 The molds made in the afore-described manner did have 21 the following properties.
23 Thermal condcutivity 84% (of pure copper~
24 Softening temperature 510C
Hardness HB 2.5/62.S 159 26 Tensi;le strength 521 Newtons/mm2 27 Elongation a-t rupture 21%
2~
5~
1 This particular mold exhibited decid~dly less wear 2 at the bottom.
4 (3~ In some cases, one needs a mold of a still higher thermal conductivity; for instance, when the quality of 6 the cooling water is rather poor~ The alloy may consist 7 hexe o~ copper with just 0.05~ to 0.3% zirconium. The
9 A round tube was made by extrusion at 950C, and the rectangular (square) cross section resulted from a subsequent solution heat treated /
11 drawing step. This square tube was / for 45 minutes 12 at 990C. Following cooling, suitable lengths were cut; and }3 each length was sized and cold-worked by means of a mandrel 14 and a die under reduction of the wall thickness by 15% in order to obtain the final ~;men~ion. Thereafter, the tubular 16 pieces were age-hardened for six hours at 450C. The final 17 sizing was obtained by the above-mentioned explosion deforma-18 tion.
~.9 The molds made in the afore-described manner did have 21 the following properties.
23 Thermal condcutivity 84% (of pure copper~
24 Softening temperature 510C
Hardness HB 2.5/62.S 159 26 Tensi;le strength 521 Newtons/mm2 27 Elongation a-t rupture 21%
2~
5~
1 This particular mold exhibited decid~dly less wear 2 at the bottom.
4 (3~ In some cases, one needs a mold of a still higher thermal conductivity; for instance, when the quality of 6 the cooling water is rather poor~ The alloy may consist 7 hexe o~ copper with just 0.05~ to 0.3% zirconium. The
8 working method is carried out as described. An interposed
9 cold-working step raises to a tensile strength of up to 350 N/mm2 at a thermal conductivity of above 93~ of pure copper.
11 This material softens at a tempera~ure of above 550~C.
13 (4) Magneti.c sti.rring is another special requirement, which 14 means that the electrical conductivi~y of the mold should be quite low in order to make sure that the magnetic stirring 16 field is not signi.ficantly weakened. Unfortunately, the 17 thermal conductivity drops with the electrical conductivity 18 so that the mold wall temperatures will be quite high during 19 casting. Thus, in order to avoid thermal deformation of the mold, its strength must retain high values, even at 21 high operating temperaturesO
23 In accordance with the invention, it was found that, 24 for instance, an age-hardening copper-nickel-phosphorous alloy is well suited for such a purpose; particularly, 26 a composition of 0.~% to 1.5% Ni and 0.1% to 0.3~ P (remainder 1 being copper plus impurities~. Alternatively, a copper -2 cobalt-beryllium alloy or a ~opper-nickel-beryllium alloy 3 can be used with 1 to 2~5%-~o;or 1 to 2.5% Ni; or 4 0.5 to 1.5~ Ni plus 0.5 to 1.5~ Co, and 0.3 to 0.6% beryllium in each instance (remainder Cu plus impurities). Another 6 alloy consists of copper nickel silicon with 0.2 to 1.1~ Si 7 and 1.2 to 3.5~ Ni (remainder Cu plus impurities).
9 A copper cobalt-berylliurn alloy with 2.2% Co and 0.54 Be (remainder Cu and impurities) was used to make a rectangular, 11 tubular mold at interior dimensions of 200mm by 220mm;
12 wall thickness 14mm.
/treated 14 A near-square tube WdS made by extrusion and solution heat/
for 45 minutes at 935C. A bending machine provided the 16 desired curving~ After cutting, the lengths were explosion 17 deformed as described and sized over a mandrel. Each piece 18 was then age-hardened at 480C for five hours. Any distor-19 tion that may have resulted was eliminated by another explosion deforming over a mandrel, and the resulting molds 21 were sized again.
23 A mold made as per the last-mentiolled method did haYe the 24 following properties:
26 Therrnal conductivity 54~ (of pure copper) 27 Softening temperature 505C
~1 ~9~ KAB-7240 1 Hardness HB 2.5/62.5 235 2 Tensile strength 805 N/mm2 3 El.ongation at rupture 17%
4 ~igh temperature strength:
200C 735 N/mm2 6 350C 622 N~mm 8 Such a mo].d was then used in conjunction with magnetic g stirring, and the low field attenuation resulted in a significantly improved stirring effect. The mold retained 11 its size even after 100 casting runs.
13 The invention is not limited to the embodiments 14 described above; but all changes and modifications thereof, not constltuting departues from the spirit and scope of 16 the invention, are intended to be included.
i9
11 This material softens at a tempera~ure of above 550~C.
13 (4) Magneti.c sti.rring is another special requirement, which 14 means that the electrical conductivi~y of the mold should be quite low in order to make sure that the magnetic stirring 16 field is not signi.ficantly weakened. Unfortunately, the 17 thermal conductivity drops with the electrical conductivity 18 so that the mold wall temperatures will be quite high during 19 casting. Thus, in order to avoid thermal deformation of the mold, its strength must retain high values, even at 21 high operating temperaturesO
23 In accordance with the invention, it was found that, 24 for instance, an age-hardening copper-nickel-phosphorous alloy is well suited for such a purpose; particularly, 26 a composition of 0.~% to 1.5% Ni and 0.1% to 0.3~ P (remainder 1 being copper plus impurities~. Alternatively, a copper -2 cobalt-beryllium alloy or a ~opper-nickel-beryllium alloy 3 can be used with 1 to 2~5%-~o;or 1 to 2.5% Ni; or 4 0.5 to 1.5~ Ni plus 0.5 to 1.5~ Co, and 0.3 to 0.6% beryllium in each instance (remainder Cu plus impurities). Another 6 alloy consists of copper nickel silicon with 0.2 to 1.1~ Si 7 and 1.2 to 3.5~ Ni (remainder Cu plus impurities).
9 A copper cobalt-berylliurn alloy with 2.2% Co and 0.54 Be (remainder Cu and impurities) was used to make a rectangular, 11 tubular mold at interior dimensions of 200mm by 220mm;
12 wall thickness 14mm.
/treated 14 A near-square tube WdS made by extrusion and solution heat/
for 45 minutes at 935C. A bending machine provided the 16 desired curving~ After cutting, the lengths were explosion 17 deformed as described and sized over a mandrel. Each piece 18 was then age-hardened at 480C for five hours. Any distor-19 tion that may have resulted was eliminated by another explosion deforming over a mandrel, and the resulting molds 21 were sized again.
23 A mold made as per the last-mentiolled method did haYe the 24 following properties:
26 Therrnal conductivity 54~ (of pure copper) 27 Softening temperature 505C
~1 ~9~ KAB-7240 1 Hardness HB 2.5/62.5 235 2 Tensile strength 805 N/mm2 3 El.ongation at rupture 17%
4 ~igh temperature strength:
200C 735 N/mm2 6 350C 622 N~mm 8 Such a mo].d was then used in conjunction with magnetic g stirring, and the low field attenuation resulted in a significantly improved stirring effect. The mold retained 11 its size even after 100 casting runs.
13 The invention is not limited to the embodiments 14 described above; but all changes and modifications thereof, not constltuting departues from the spirit and scope of 16 the invention, are intended to be included.
i9
Claims (9)
1. A method of making tubular, curved or straight molds for continuous casting, comprising the steps of providing an age-hardening copper alloy;
making a tube from the alloy;
solution heat-treating the tube material;
subsequently age hardening the tube at from 400°C
to 600°C for at least 15 minutes; and explosion-forming the tube in order to obtain its final size as to its interior serving as a mold cavity.
making a tube from the alloy;
solution heat-treating the tube material;
subsequently age hardening the tube at from 400°C
to 600°C for at least 15 minutes; and explosion-forming the tube in order to obtain its final size as to its interior serving as a mold cavity.
2. The method as in Claim 1, including the step of cold-working the tube after the heat treatment prior to the age-hardening.
3. The method as in Claim 2, the cold-working step being another explosion-forming step.
4. The method as in Claim 2, the cold-working step including placing a mandrel into the tube and drawing the tube through a die.
5. The method as in Claim 1, using a copper alloy of 0.3% to 1.2% chromium and 0.05% to 0.2% zirconium, the remainder being copper and spurious impurities.
6. The method as in Claim 1, using a copper alloy of copper with 0.05% to 0.3% zirconium.
7. The method as in Claim 1, using a copper alloy with 0.6% to 1.5% Ni and 0.1% to 0.3% P.
8. The method as in Claim 1, using a copper alloy with 1% to 5% Co or 1% to 2.5% Ni or 0.5% to 1.5% Ni and 1.5% Co; and 0.3% to 0.6% Be.
9. The method as in Claim 1, using a copper alloy with 0.2% to 1.1% Si and 1.2% to 3.5% Ni.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813109438 DE3109438A1 (en) | 1981-03-12 | 1981-03-12 | "METHOD FOR THE PRODUCTION OF TUBULAR, STRAIGHT OR CURVED CONTINUOUS CASTING CHILLS WITH PARALLELS OR CONICAL INTERIOR CONTOURS FROM CURABLE copper ALLOYS" |
| DEP3109438.4 | 1981-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1196552A true CA1196552A (en) | 1985-11-12 |
Family
ID=6127018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000398271A Expired CA1196552A (en) | 1981-03-12 | 1982-03-12 | Making a mold for continuous casting |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS57159240A (en) |
| BR (1) | BR8201280A (en) |
| CA (1) | CA1196552A (en) |
| CH (1) | CH654502A5 (en) |
| DE (1) | DE3109438A1 (en) |
| ES (1) | ES510190A0 (en) |
| FR (1) | FR2501556B1 (en) |
| GB (1) | GB2096496B (en) |
| IN (1) | IN157659B (en) |
| IT (1) | IT1148120B (en) |
| ZA (1) | ZA821484B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3218100A1 (en) * | 1982-05-13 | 1983-11-17 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | METHOD FOR PRODUCING A TUBE CHOCOLATE WITH A RECTANGULAR OR SQUARE CROSS SECTION |
| DE3514123C2 (en) * | 1985-04-19 | 1994-12-08 | Kabelmetal Ag | Process for producing continuous casting molds for continuous casting machines |
| DE3725950A1 (en) * | 1987-08-05 | 1989-02-16 | Kabel Metallwerke Ghh | USE OF A COPPER ALLOY AS A MATERIAL FOR CONTINUOUS CASTING MOLDS |
| JPH02221344A (en) * | 1989-02-21 | 1990-09-04 | Mitsubishi Shindoh Co Ltd | High strength cu alloy having hot rollability and heating adhesiveness in plating |
| EP0498296B2 (en) * | 1991-02-06 | 2000-12-06 | Concast Standard Ag | Mould for continuous casting of metals, especially of steel |
| DE4427939A1 (en) | 1994-08-06 | 1996-02-08 | Kabelmetal Ag | Use of a hardenable copper alloy |
| DE10018504A1 (en) * | 2000-04-14 | 2001-10-18 | Sms Demag Ag | Use of a hardenable copper alloy containing beryllium and nickel for molds for producing plates for thin slab continuous casting molds |
| JP2006326634A (en) * | 2005-05-25 | 2006-12-07 | Daido Steel Co Ltd | Method for predicting damage of metal die |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2768287A (en) * | 1952-12-24 | 1956-10-23 | Westinghouse Air Brake Co | Railway track switch controlling apparatus |
| US3522112A (en) * | 1967-06-26 | 1970-07-28 | Olin Corp | Process for treating copper base alloy |
| US3882712A (en) * | 1973-10-01 | 1975-05-13 | Olin Corp | Processing copper base alloys |
| ZA754574B (en) * | 1974-07-29 | 1976-06-30 | Concast Inc | A method of forming the walls of continuous casting and chill |
| DE2635454C2 (en) * | 1976-08-06 | 1986-02-27 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Use of a copper alloy |
| JPS5446131A (en) * | 1977-09-20 | 1979-04-11 | Mishima Kosan Co Ltd | Method of making mold for continuous casting process |
-
1981
- 1981-03-12 DE DE19813109438 patent/DE3109438A1/en active Granted
-
1982
- 1982-02-18 CH CH1007/82A patent/CH654502A5/en not_active IP Right Cessation
- 1982-03-03 GB GB8206277A patent/GB2096496B/en not_active Expired
- 1982-03-05 ES ES510190A patent/ES510190A0/en active Granted
- 1982-03-05 ZA ZA821484A patent/ZA821484B/en unknown
- 1982-03-08 IT IT47942/82A patent/IT1148120B/en active
- 1982-03-10 FR FR8204032A patent/FR2501556B1/en not_active Expired
- 1982-03-10 IN IN273/CAL/82A patent/IN157659B/en unknown
- 1982-03-10 BR BR8201280A patent/BR8201280A/en not_active IP Right Cessation
- 1982-03-12 CA CA000398271A patent/CA1196552A/en not_active Expired
- 1982-03-12 JP JP57038203A patent/JPS57159240A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IN157659B (en) | 1986-05-10 |
| ZA821484B (en) | 1983-04-27 |
| FR2501556A1 (en) | 1982-09-17 |
| IT1148120B (en) | 1986-11-26 |
| DE3109438A1 (en) | 1982-09-30 |
| IT8247942A0 (en) | 1982-03-08 |
| BR8201280A (en) | 1983-01-18 |
| ES8303147A1 (en) | 1983-02-01 |
| ES510190A0 (en) | 1983-02-01 |
| GB2096496B (en) | 1984-09-05 |
| JPH0216170B2 (en) | 1990-04-16 |
| FR2501556B1 (en) | 1986-03-28 |
| GB2096496A (en) | 1982-10-20 |
| CH654502A5 (en) | 1986-02-28 |
| DE3109438C2 (en) | 1991-02-21 |
| JPS57159240A (en) | 1982-10-01 |
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| Date | Code | Title | Description |
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| MKEX | Expiry |