CN109930023A - Manufacturing method of large-tonnage chromium-zirconium-copper alloy - Google Patents
Manufacturing method of large-tonnage chromium-zirconium-copper alloy Download PDFInfo
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- CN109930023A CN109930023A CN201910243497.2A CN201910243497A CN109930023A CN 109930023 A CN109930023 A CN 109930023A CN 201910243497 A CN201910243497 A CN 201910243497A CN 109930023 A CN109930023 A CN 109930023A
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- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- QZLJNVMRJXHARQ-UHFFFAOYSA-N [Zr].[Cr].[Cu] Chemical compound [Zr].[Cr].[Cu] QZLJNVMRJXHARQ-UHFFFAOYSA-N 0.000 title claims abstract description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 72
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000010949 copper Substances 0.000 claims abstract description 67
- 229910052802 copper Inorganic materials 0.000 claims abstract description 67
- 239000011651 chromium Substances 0.000 claims abstract description 63
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims abstract description 57
- 238000002844 melting Methods 0.000 claims abstract description 37
- 230000008018 melting Effects 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 239000006260 foam Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 230000006698 induction Effects 0.000 claims abstract description 20
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005266 casting Methods 0.000 claims abstract description 16
- 238000003723 Smelting Methods 0.000 claims abstract description 6
- XTYUEDCPRIMJNG-UHFFFAOYSA-N copper zirconium Chemical compound [Cu].[Zr] XTYUEDCPRIMJNG-UHFFFAOYSA-N 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000000638 solvent extraction Methods 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000007667 floating Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 238000003280 down draw process Methods 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 229910002804 graphite Inorganic materials 0.000 description 11
- 239000010439 graphite Substances 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 239000011148 porous material Substances 0.000 description 7
- 239000000470 constituent Substances 0.000 description 6
- 239000000395 magnesium oxide Substances 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 description 1
- JUVGUSVNTPYZJL-UHFFFAOYSA-N chromium zirconium Chemical compound [Cr].[Zr] JUVGUSVNTPYZJL-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
A method for manufacturing large-tonnage chromium-zirconium-copper alloy comprises the steps of smelting the alloy in vacuum or protective atmosphere, wherein a copper matrix contains 0.01-0.6 wt% of zirconium and 0.2-3 wt% of chromium; the melting chamber is divided into an upper area and a lower area, the upper area is a high-capacity low-temperature area, a resistance heating mode is adopted, the heating temperature range is 0-1400 ℃, and melting of more than 5000kg of pure copper or zirconium-containing copper alloy can be realized; the lower part is a high-temperature area with small capacity, and the low-temperature area can be quickly heated within the temperature range of 0-2200 ℃ by adopting a medium-frequency induction heating mode, so that 25-300kg of pure chromium or chromium-containing copper alloy is smelted and melted, and the molten chromium component is dissolved in copper liquid and floats upwards against the direction of gravity to enter the upper low-temperature copper alloy melt; the high-low temperature molten liquid in the upper and lower two areas is isolated by a porous foam chromium material fixed below the low-temperature area, the function of the high-low temperature molten liquid is to prevent large-size chromium particles which are not completely melted or dissolved in the copper liquid in the lower melting area from floating up and entering the low-temperature area of the furnace body, and simultaneously, the free flow of the copper alloy molten liquid in the upper and lower two areas is kept; and after all the materials are melted, pouring the materials in the crucible to cast ingots, or solidifying the materials into castings with required shapes by adopting an up-drawing, down-drawing and side-drawing ingot casting mode.
Description
Technical field
The invention belongs to copper alloy with high strength and high conductivity manufacturing technology fields, in particular to 5 tons a kind of or more large-tonnage chromium zirconium
The manufacturing method of copper alloy.
Background technique
Copper is the common metal that human consumption comes third position, have good conduction, heating conduction, corrosion resistance and
Superior cold deformation ability is electric power, electric appliance, electronics, communication, traffic, aerospace and the indispensable pass of machinery manufacturing industry
Key material.
With the development of industrial technology, some performances of copper material have been unsatisfactory for social demand.Wherein, the intensity of copper material is not
Foot is its major defect, and under normal circumstances, the cold strength of fine copper is lower than 300MPa, and intensity is a little higher than after cold deformation
400MPa.But plasticity decline is serious after copper material cold deformation, and will drop to the level before deformation using the slightly higher intensity of temperature.
Chromium-zirconium-copper is a kind of mostly important copper alloy with high strength and high conductivity material, be the chromium that 0.5-3wt% is added in fine copper,
The zirconium of 0.05-0.3wt%.This material inherits the superior conductive, heating conduction of fine copper, while intensity can be improved 500-
600MPa, conductivity become resistance welding electrode, continuous cast mold, circuit lead frame, electric contact in 80%IACS or more
Material, gas cutting machine nozzle, electric railway contact line, traction electric machine conducting bar, slip ring, retaining ring, high-voltage switch gear conducting rod, fingertip,
Large-scale microwave tube structure and conductive material, switching switch, for silver contact, heater lead, large high-speed turbogenerator rotor
Combustion chamber burner, bushing, rocket or jet plane in conducting wire, motor brush and rotation source neutron rake, nuclear fusion system
The pass of the industrial circles such as the self cooling Heat Conduction Material such as wing or blade inlet edge, microwave tube, electron tube, great-power electronic pipe holder
Key material.
Due to zr element is oxidizable, chromium it is extremely difficult fusing and be dissolved in copper liquid so that chrome zirconium copper alloy is generally required true
Melting under empty or inert atmosphere.However, people are difficult to manufacture due to the limitation for being limited by power and induction coil Insulation Problems
High-power, high-capacity vacuum smelting furnace or inert atmosphere smelting furnace so that so far both at home and abroad can only generally manufacture weight 500kg with
Under chromium-zirconium-copper material.
Summary of the invention
In order to overcome the defects of the prior art described above, the purpose of the present invention is to provide a kind of large-tonnage chrome zirconium copper alloys
The molten alloy of the constituent element containing chromium is placed in the lower part of vacuum or atmosphere furnace, is used water by manufacturing method using vertical partitioning melting in furnace
The high temperature that cold induction coil induction heating obtains makes it melt and be dissolved in copper liquid, and the melting capacity in this region is 25-
300kg, it can be achieved that heating temperature range be 0-2200 DEG C；The melting of constituent element containing zirconium and copper constituent element is placed in vacuum or atmosphere furnace
Top, melt zirconium and copper constituent element with resistance heating manner, the melting capacity in this region is greater than 5000kg, heating temperature
Section is 0-1400 DEG C；The two is isolated with porous foam chromium material, and the inside aperture of porous foam chromium material is 0.1-5mm, is made
Fusing and dissolved chromium-rich copper melts because specific gravity be lower than copper melts due to pass through porous foam chromium material floating be dissolved in upper copper melt
In body, the unfused and undissolved chromium particle in copper melts is isolated and is held in the high-temperature region of lower part by porous foam chromium material
Until fusing and dissolution are completed.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of manufacturing method of large-tonnage chrome zirconium copper alloy, chrome zirconium copper alloy melt in vacuum or inert gas shielding environment
Using vertical partitioning method of smelting in a kind of furnace when refining: top low temperature large capacity warm area uses resistance heating mode, heating temperature
Interval range is 0-1400 DEG C, and melting capacity is greater than 5000kg, realizes fine copper or the melting containing zirconium copper alloy；Lower part high temperature corpusculum
Accumulated temperature area use induction heating mode, melting capacity be 25-300kg, realize 0-2200 DEG C of temperature range within the scope of pure chromium or
Melting containing chrome copper；Crucible is fixed with porous foam chromium material close to crucible bottom and high/low temperature melt is isolated in furnace,
The inside aperture of porous foam chromium material is 0.1-5mm, while keeping the free-flowing of two warm area liquid up and down；All material
Material in crucible toppled over after the completion of fusing be cast into ingot casting or using above draw, under draw, be frozen into institute by the way of ingot casting is drawn in side
Need the casting of shape.
The chrome zirconium copper alloy is to account for total amount 0.2- containing the zirconium for accounting for total amount 0.01-0.6wt% in Copper substrate
The chromium of 3wt%.
Vacuum ranges is 5-3000Pa when using vacuum melting mode；When using inert gas shielding environment, air pressure model
It encloses for 0.05-0.2MPa.
The design principle of this technology method be will melt be divided into upper and lower Two Areas, be respectively adopted different heating methods,
The melting zone of two different temperatures in the inner melt of formation is isolated by porous foam chromium material.Wherein, top is sent out with resistance-type
Hot body heating, solution are difficult to obtain high-power, high-capacity vacuum melting because being limited by power and induction coil Insulation Problems
The problem of furnace or inert atmosphere smelting furnace；It is heated in one zonule of lower portion of furnace body using induction type, the height realized by it
Mildly quickly chromium is melted and is dissolved by heating, and solution traditional resistor heating method is difficult to obtain continuous high temperature and heating speed is slow
Slowly, the problem of can not melting chromium constituent element and be dissolved in copper liquid body, the chromium constituent element after fusing are dissolved in copper liquid and inverse gravity direction
It floats and enters the low temperature molten alloyed copper of upper area；Two Areas is isolated by porous foam chromium material, is avoided in the melting zone of lower part
Be not completely melt or be not dissolved completely in large scale chromium particle in copper liquid and float enter in furnace body low-temperature space.
Detailed description of the invention
Fig. 1 is the microscopic structure of chromium-zirconium-copper in embodiment 1.
Fig. 2 is the microscopic structure of chromium-zirconium-copper in embodiment 2.
Fig. 3 is the microscopic structure of chromium-zirconium-copper in embodiment 3.
Fig. 4 is the microscopic structure of chromium-zirconium-copper in embodiment 4.
Specific embodiment
Below with reference to the embodiment embodiment that the present invention will be described in detail.
Embodiment one
Using vacuum melting mode, working vacuum degree is 5-200Pa in furnace chamber.Installation is using upper coarse and lower fine in vacuum drying oven
Graphite crucible, the aperture in crucible upper hole is 1800mm, hole depth 2000mm, can accommodate about 30 tons of maximum weight of copper liquid
Body；Upper internal diameter 320mm, bottom inner diameter 350mm, hole depth 600mm in crucible bottom pore, may be implemented 300kg pure chromium or
Melting containing chrome copper；Crucible bottom and the excessive place of top variable diameter, which are fixed with, excessively locates diameter identical (320mm) with pore
Porous foam chromium material, foam chromium material with a thickness of 25mm, internal aperture is 0.2-0.5mm, and porous foam chromium material is molten
High/low temperature melt is isolated during change, avoids the big ruler not being completely melt or be not dissolved completely in copper liquid in the melting zone of lower part
Very little chromium particle, which floats, to be entered in furnace body low-temperature space.
Use outside the circumference of crucible top graphite electrode for the resistance heating mode of heater, it can be achieved that maximum heating temperature
It is 1300 DEG C；Crucible bottom uses water-cooled copper induction coil, using mid-frequency induction heating mode, IF frequency 1500Hz；Graphite
It is isolated between heater and water-cooled copper induction coil with insulating heat insulating material and is separated.
Whole Cr materials of melting are put into the pore crucible of lower part, fixed porous foam chromium material, copper are installed later
It is put into the macropore crucible of top with whole zirconium raw materials.
Heating started simultaneously to upper and lower Two Areas material, upper copper and zirconium raw material start after being heated to 800 DEG C or more by
Step fusing, melt, which can flow into the high-temperature region of lower part, after fusing helps the fusing of lower part Cr materials and dissolution；Lower part chromium block is heated to
Chromium block is gradually melted and is dissolved in copper liquid at 1800 DEG C or more, floating later against gravity enters in the low-temperature space of top and be diluted
In copper melt.The up-drawing method of material in crucible is drawn into rodlike chromium-zirconium-copper ingot casting after upper and lower Two Areas material is all melting down.
Fig. 1 is the metallographic structure that this method prepares that sample amplifies 20 times, shows the institutional framework for obtaining even compact.
Table 1 is that this method prepares the chemical analysis results sampled in ingot casting, has reached the composition requirement of design.
1 embodiment of table, 1 analysis of components
| Sample number | Chromium (wt%) | Zirconium (wt%) |
| 1 | 0.82 | 0.081 |
| 2 | 0.94 | 0.087 |
| 3 | 1.09 | 0.098 |
Embodiment two
Using vacuum melting mode, working vacuum degree is 20-500Pa in furnace chamber.Ramming in situ is upper coarse and lower fine in vacuum drying oven
Magnesia crucible, upper internal diameter 900mm, lower inner diameter 1000mm in crucible hole, hole depth 2000mm can accommodate maximum weight
About 10 tons of copper liquid body；Diameter in crucible bottom pore is 250mm, hole depth 400mm, and 120kg may be implemented and close containing chromium-copper
The melting of gold.Crucible bottom and the excessive place of top variable diameter, which are inlayed, fixed excessively locates the identical porous foam chromium material of diameter with pore
(250mm), foam chromium material is 1-2mm with a thickness of 10mm, foam network internal holes diameter.
Use silicon-carbon bar electrode for the resistance heating mode of heater outside the circumference of crucible top, can highest be heated to
1400℃；Crucible bottom uses water-cooled copper induction coil, using mid-frequency induction heating mode, IF frequency 3000Hz；Graphite hair
It is isolated between hot body and water-cooled copper induction coil with insulating heat insulating material and is separated.
It by whole Cr materials of melting and accounts for the copper that total mass ratio is 30wt% and is put into the pore crucible of lower part, later
Fixed porous foam chromium material is installed below upper portion crucible, remaining copper and whole zirconium raw materials are put into the macropore crucible of top.
Heating started simultaneously to upper and lower Two Areas material, upper copper and zirconium raw material start after being heated to 850 DEG C or more by
Step fusing, melt, which can flow into the high-temperature region of lower part, after fusing helps the fusing of lower part Cr materials and dissolution；Lower part chromium and copper are heated
When to 1800 ° or more the fusing of chromium block and be dissolved in copper liquid, floating later against gravity enters in the low-temperature space of top and is diluted in
In copper melt.Material in crucible is poured into die casting into ingot casting after upper and lower Two Areas material is all melting down.
Attached drawing 2 is the metallographic structure that this method prepares that sample amplifies 20 times, shows the institutional framework for obtaining even compact.
Table 2 is that this method prepares the chemical analysis results sampled in ingot casting, has reached the composition requirement of design.
2 embodiment of table, 2 analysis of components
| Sample number | Chromium (wt%) | Zirconium (wt%) |
| 1 | 0.78 | 0.085 |
| 2 | 0.81 | 0.085 |
| 3 | 0.82 | 0.089 |
Embodiment three
Using the atmosphere melting mode of nitrogen protection, 0.05-0.07MPa nitrogen is filled in furnace chamber.Atmosphere furnace internal upper part is smash
Lime crucible is beaten, upper internal diameter 720mm, lower inner diameter 800mm, hole depth 1300mm in crucible hole can accommodate maximum weight
About 5 tons of copper liquid body；The graphite crucible of lime crucible Lower mounting hole diameter 250mm, hole depth 350mm, may be implemented 100kg
Pure chromium or melting containing chrome copper；Two kinds of crucible joints are installed by fixed porous foam chromium material, the diameter of foam chromium material
(250mm) identical as lower part graphite crucible back cut diameter, with a thickness of 30mm, internal aperture is 0.5-0.8mm.
Use nickel filament electrode for the resistance heating mode of heater outside the circumference of crucible top, can heating temperature to most
1200 ° of high-temperature；Crucible bottom uses water-cooled copper induction coil, using mid-frequency induction heating mode, IF frequency 3000Hz；Nickel
It is isolated between chromium silk heater and water-cooled copper induction coil with insulating heat insulating material and is separated.
By whole Cr materials of melting and accounts for total amount and be put into the pore crucible of lower part than the copper for 30wt%, Zhi Houan
Fixed porous foam chromium material is filled, remaining copper and whole zirconium raw materials are put into the macropore lime crucible of top.
First upper area material is heated, upper copper and zirconium raw material are heated to 1150 DEG C of heat preservations, and top copper product starts to melt
Power transmission heating is started to material in the graphite crucible of lower part after change, lower part chromium and copper, which are heated to, all to be melted and be dissolved in copper liquid
Afterwards, crucible inner melt is poured into die casting into ingot casting.
Attached drawing 3 is the metallographic structure that this method prepares that sample amplifies 20 times, shows the institutional framework for obtaining even compact.
Table 3 is that this method prepares the chemical analysis results sampled in ingot casting, has reached the composition requirement of design.
3 embodiment of table, 3 analysis of components
| Sample number | Chromium (wt%) | Zirconium (wt%) |
| 1 | 0.85 | 0.084 |
| 2 | 0.72 | 0.097 |
| 3 | 0.68 | 0.15 |
Example IV
Using the atmosphere melting mode of argon gas protection, 0.09-0.1MPa argon gas is filled in furnace chamber.Lower part ramming in atmosphere furnace
Magnesia crucible, crucible upper internal diameter 230mm, lower inner diameter 250mm, hole depth 600mm may be implemented 100kg pure chromium or contain
The melting of chrome copper；Graphite crucible is installed on magnesia crucible top, and crucible diameter of bore is 800mm, hole depth 1300mm, can be with
Accommodate about 5 tons of maximum weight of copper liquid body；Fixed porous foam chromium materials are installed in two kinds of crucible joints, foam chromium material it is straight
Diameter is identical as lower part magnesia crucible back cut diameter (230mm), and with a thickness of 30mm, internal aperture is 2-3mm.
Use graphite electrode for the resistance heating mode of heater outside the circumference of crucible top, heating temperature highest can be extremely
1400°；Crucible bottom uses water-cooled copper induction coil, using mid-frequency induction heating mode, IF frequency 2500Hz；Heating graphite
It is isolated between body and water-cooled copper induction coil with insulating heat insulating material and is separated.
Whole Cr materials of melting and the copper for accounting for total mass ratio 45wt% are put into the magnesia crucible of lower part, later
Fixed porous foam chromium material is installed, remaining copper and whole zirconium raw materials are put into the graphite crucible of top.
First upper area material is heated, upper copper and zirconium raw material are heated to 1300 DEG C of heat preservations, and top copper product starts to melt
Power transmission heating is started to material in the magnesia crucible of lower part after change, lower part chromium and copper, which are heated to, all melts and be dissolved in copper liquid
In after, draw under method by crucible inner melt introducing crucible be prepared into plate ingot casting.
Attached drawing 4 is the metallographic structure that this method prepares that sample amplifies 20 times, shows the institutional framework for obtaining even compact.
Table 4 is that this method prepares the chemical analysis results sampled in ingot casting, has reached the composition requirement of design.
4 embodiment of table, 4 analysis of components
| Sample number | Chromium (wt%) | Zirconium (wt%) |
| 1 | 1.36 | 0.060 |
| 2 | 1.09 | 0.047 |
| 3 | 1.22 | 0.094 |
Claims (3)
1. a kind of manufacturing method of large-tonnage chrome zirconium copper alloy, which is characterized in that chrome zirconium copper alloy is protected in vacuum or inert gas
Using vertical partitioning method of smelting in a kind of furnace when melting in retaining ring border: top low temperature large capacity warm area uses resistance heating mould
Formula, heating temperature interval range are 0-1400 DEG C, and melting capacity is greater than 5000kg, realizes fine copper or the melting containing zirconium copper alloy；
Lower part high temperature small size warm area uses induction heating mode, and melting capacity is 25-300kg, realizes 0-2200 DEG C of temperature range model
Pure chromium in enclosing or the melting containing chrome copper；Crucible is fixed with porous foam chromium material for height close to crucible bottom in furnace
Warm melt isolation, the inside aperture of porous foam chromium material is 0.1-5mm, while keeping the free flow of two warm area liquid up and down
It is dynamic；All material fusing after the completion of material in crucible is toppled over be cast into ingot casting or using above draw, under draw, ingot casting is drawn in side
Mode is frozen into the casting of required shape.
2. a kind of manufacturing method of large-tonnage chrome zirconium copper alloy according to claim 1, which is characterized in that the chromium zirconium
Copper alloy is to account for the chromium of total amount 0.2-3wt% containing the zirconium for accounting for total amount 0.01-0.6wt% in Copper substrate.
3. a kind of manufacturing method of large-tonnage chrome zirconium copper alloy according to claim 1, which is characterized in that molten using vacuum
Vacuum ranges are 5-3000Pa when refining mode；When using inert gas shielding environment, air pressure range 0.05-0.2MPa.
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| CN113653573A (en) * | 2021-08-05 | 2021-11-16 | 陕西斯瑞新材料股份有限公司 | Manufacturing method of inner wall blank of combustion chamber of aerospace engine |
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| WO2005103309A1 (en) * | 2004-04-26 | 2005-11-03 | Fos International S.A. | Metallothermic process for magnesium production and vacuum-induction furnace thereto |
| CN101173838A (en) * | 2007-07-06 | 2008-05-07 | 高文林 | Novel directional solidification and purification stove |
| CN107957193A (en) * | 2016-10-18 | 2018-04-24 | 福建省瑞奥麦特轻金属有限责任公司 | A kind of Automatic-temperature holding furnace for being used to continuously prepare aluminium alloy semi-solid slurry |
| CN108339953A (en) * | 2018-02-09 | 2018-07-31 | 陕西斯瑞新材料股份有限公司 | It is a kind of it is antivacuum under draw the production technology of continuous casting chromium-zirconium-copper slab ingot |
| CN108950271A (en) * | 2018-08-01 | 2018-12-07 | 西安西电电气研究院有限责任公司 | A kind of chrome zirconium copper alloy and preparation method thereof |
| CN109355525A (en) * | 2018-11-06 | 2019-02-19 | 有研工程技术研究院有限公司 | Multiple dimensioned polynary high-strength highly-conductive chrome zirconium copper alloy material of one kind and preparation method thereof |
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| CN113653573A (en) * | 2021-08-05 | 2021-11-16 | 陕西斯瑞新材料股份有限公司 | Manufacturing method of inner wall blank of combustion chamber of aerospace engine |
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