CN108411151A - A kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy - Google Patents
A kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy Download PDFInfo
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- CN108411151A CN108411151A CN201810287173.4A CN201810287173A CN108411151A CN 108411151 A CN108411151 A CN 108411151A CN 201810287173 A CN201810287173 A CN 201810287173A CN 108411151 A CN108411151 A CN 108411151A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/05—Alloys based on copper with manganese as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
Abstract
The invention discloses a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy, this method includes：One, it is once vacuumized after copper and manganese being put into the crucible of vacuum induction melting furnace, then carries out the pre-heat treatment；Two, treated that raw material is refined to obtain cupromanganese melt by preheated, is then charged with argon gas and is heated as protective gas；Three, the cupromanganese melt after will be heated casts to form copper manganese intermediate alloy ingot casting；It is air-cooled to room temperature Step 4: copper manganese intermediate alloy ingot casting is placed in alumina brick or aluminum oxide sand, obtains high Mn content copper manganese intermediate alloy.This method is filled with high-purity argon gas into vacuum induction melting furnace during copper manganese raw material preheating, it is mixed with argon gas after so that the gas of raw copper and manganese adsorption is discharged, to reduce the oxygen partial pressure in stove, the oxidative slagging phenomenon for avoiding manganese element in fusion process, to make the content of manganese element in copper manganese intermediate alloy be more than 30% and be no more than 50%.
Description
Technical field
The invention belongs to vacuum metallurgy melting technique fields, and in particular to a kind of vacuum of high Mn content copper manganese intermediate alloy
Induction melting method.
Background technology
Copper manganese intermediate alloy is the important source material for producing cupric, manganese non-ferrous alloy, has coloured gold in melting cupric, manganese
Belong to the important function that dispensing and modifying ingredients are played in alloy.When producing the non-ferrous alloy product of cupric, manganese, due to manganese
Element easily aoxidizes and volatile, and the casting yield of alloy is low when manganese is added with elemental form, and ingredient is not easy to control and alloy
Melting difficulty is larger.Therefore the non-ferrous alloy of melting cupric, manganese is often by being added copper manganese intermediate alloy, to prevent metal
Overheat reduces melting loss of elements, to obtain the uniform product of ingredient.
The highest CuMn30 intermediate alloys for Germany's exploitation of manganese content in copper manganese intermediate alloy at present, there is CuMn22 in the country
With CuMn28 intermediate alloys.The main method of domestic production CuMn22 and CuMn28 intermediate alloy is non-vacuum melting, this method
When preparing CuMn22 and CuMn28 intermediate alloys, there is shortcomings：(1) even if adding coverture in fusion process
And deoxidier, but antivacuum environment still be easy to cause the oxidation of copper in fusion process, manganese；(2) Ji Bu of the oxide of manganese
This free energy is low, cannot be decomposed by way of deoxidier reduction, therefore there is the oxides of a large amount of manganese to be mingled in alloy；
(3) oxidation of copper, manganese can also cause the scaling loss of element, melting reality yield low.The copper manganese intermediate alloy produced by this method
Melting reality yield only has 95%~96%, remaining 4%~5% bronze medal manganese intermediate alloy forms clinker and is wasted.
Invention content
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of high Mn content
The vacuum induction melting method of copper manganese intermediate alloy.This method is filled during copper manganese raw material preheating into vacuum induction melting furnace
Enter high-purity argon gas, mixed with argon gas after so that the gas of raw copper and manganese adsorption is discharged, to reduce the oxygen in stove point
Pressure reduces the element oxide in the oxygen content and fusion process in material melting liquid, avoids manganese element in fusion process
Oxidative slagging phenomenon, to make the content of manganese element in copper manganese intermediate alloy be more than 30% and be not more than 50%, among copper manganese
The melting reality yield of alloy is improved to 98.8%~99.2%.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of high Mn content copper manganese intermediate alloy
Vacuum induction melting method, which is characterized in that this approach includes the following steps：
Step 1: copper and manganese are put into as raw material in the crucible of vacuum induction melting furnace, and to vacuum induction melting furnace
It is once vacuumized, the pre-heat treatment then is carried out to raw material；The quality purity of the copper and manganese is not less than 99.95%；Institute
It states and is first filled with quality purity in preheating treatment procedure into vacuum induction melting furnace as 99.99% argon gas, then carry out secondary pumping
Vacuum, primary vacuumize are no more than 10Pa with the vacuum degree in vacuum induction melting furnace after secondary vacuum pumping；
Step 2: when the vacuum degree in vacuum induction melting furnace is reduced to 1Pa, treated by preheated in step 1
Raw material is heated to all melting and be refined, and obtains cupromanganese melt, and argon gas work is then filled with into vacuum induction melting furnace
Cupromanganese melt is heated for protective gas；
Step 3: the cupromanganese melt after will be heated in step 2 is cast to shape in heat-resisting punching block or three high graphite mo(u)lds
At copper manganese intermediate alloy ingot casting, come out of the stove after furnace cooling 30min；
Step 4: the copper manganese intermediate alloy ingot casting after coming out of the stove in step 3 is placed in alumina brick or aluminum oxide sand, it is empty
It is cooled to room temperature, obtains high Mn content copper manganese intermediate alloy of the manganese mass content more than 30% and no more than 50%.
The vacuum induction melting method of above-mentioned a kind of high Mn content copper manganese intermediate alloy, which is characterized in that in step 1
The copper is TU1 red copper bars, and manganese is electrolytic manganese.
The vacuum induction melting method of above-mentioned a kind of high Mn content copper manganese intermediate alloy, which is characterized in that in step 1
The crucible is the prefabricated crucible of aluminium oxide that magnesia prefabricated crucible of the quality purity more than 95% or quality purity are more than 95%.
The vacuum induction melting method of above-mentioned a kind of high Mn content copper manganese intermediate alloy, which is characterized in that in step 1
The mass content of manganese is more than 30% and is not more than 50% in the raw material.
The vacuum induction melting method of above-mentioned a kind of high Mn content copper manganese intermediate alloy, which is characterized in that in step 1
The temperature of the pre-heat treatment is 600 DEG C~800 DEG C, and the time is 5min~20min.
The vacuum induction melting method of above-mentioned a kind of high Mn content copper manganese intermediate alloy, which is characterized in that in step 1
The pressure being filled with after argon gas in vacuum induction melting furnace is -0.05Mpa~-0.06Mpa, and the number for being filled with argon gas is 1~3
It is secondary.
The vacuum induction melting method of above-mentioned a kind of high Mn content copper manganese intermediate alloy, which is characterized in that in step 2
The temperature of the refining is 1150 DEG C~1200 DEG C, and the time is 1min~5min.
The vacuum induction melting method of above-mentioned a kind of high Mn content copper manganese intermediate alloy, which is characterized in that in step 2
The temperature of cupromanganese melt is 1200 DEG C~1250 DEG C after the heating.
The vacuum induction melting method of above-mentioned a kind of high Mn content copper manganese intermediate alloy, which is characterized in that in step 3
The surface spraying of the heat-resisting punching block has an aluminum oxide coating layer, and the thickness of the aluminum oxide coating layer is 0.5mm~1.0mm, and described three
High graphite mo(u)ld is first preheated to 200 DEG C using preceding.
The vacuum induction melting method of above-mentioned a kind of high Mn content copper manganese intermediate alloy, which is characterized in that in step 3
The temperature that the copper manganese intermediate alloy ingot casting is come out of the stove is not higher than 400 DEG C.
Compared with the prior art, the present invention has the following advantages：
1, the present invention high-purity argon gas is filled with into vacuum induction melting furnace during copper manganese raw material preheating, make raw copper and
It is mixed with argon gas after the gas discharge of manganese adsorption, to reduce the oxygen partial pressure in stove, accelerates oxygen and pass through vacuum
The speed of discharge is pumped, the element oxide in the oxygen content and fusion process in material melting liquid is reduced, avoids melting
The oxidative slagging phenomenon of manganese element in journey, to make the content of manganese element in copper manganese intermediate alloy be more than 30% and be not more than
50%, the melting reality yield of copper manganese intermediate alloy is improved to 98.8%~99.2%.
2, the present invention prepares copper manganese intermediate alloy using vacuum induction melting method, and fusion process uses vacuum environment, significantly
The content for reducing oxygen in furnace body reduces the oxidation in fusion process among copper manganese, reduces the oxidation after alloy melting
Object is mingled with content, produces copper manganese intermediate alloy ingot blank gas and is mingled with content and is substantially reduced；Electromagnetism in fusion process simultaneously
Stirring substantially increases elemental composition uniformity in intermediate alloy.
3, it is first preheated before melting sources of the invention, promotes the gas of copper and manganese adsorption in raw material and be discharged,
The oxygen content in melting sources liquid is further reduced, the oxidation of copper and manganese in fusion process is avoided, to reduce copper
Oxide inclusion content in manganese alloy melt, obtained copper manganese intermediate alloy ingot blank gas and is mingled with content and is substantially reduced.
Technical scheme of the present invention is described in further detail below by embodiment.
Specific implementation mode
Embodiment 1
The present embodiment includes the following steps：
Step 1: being put into the earthenware of vacuum induction melting furnace using 8.16kg TU1 red copper bars and 3.84kg electrolytic manganeses as raw material
In crucible, and 10Pa once is evacuated to vacuum induction melting furnace progress, then under conditions of temperature is 600 DEG C~650 DEG C
20min is handled to raw material preheating；The quality purity of the red copper bar and electrolytic manganese is 99.95%；The crucible is that quality is pure
The prefabricated crucible of magnesia that degree is 96%；Quality purity is first filled with into vacuum induction melting furnace in the heat treatment process is
Pressure in 99.99% argon gas to vacuum induction melting furnace is -0.05Mpa, then carries out secondary vacuum pumping to 10Pa, described to fill
The number for entering argon gas is 3 times, is vacuumized to vacuum induction melting furnace after being filled with argon gas every time；
Step 2: when the vacuum degree in vacuum induction melting furnace is reduced to 1Pa, treated by preheated in step 1
Raw material is heated to whole fusings, refines 5min under conditions of temperature is 1150 DEG C, cupromanganese melt is obtained, then to vacuum
It is filled with argon gas in induction melting furnace, 1200 DEG C are heated to cupromanganese melt as protective gas；
It is formed among copper manganese Step 3: the cupromanganese melt after will be heated in step 2 is cast in three high graphite mo(u)lds
Alloy cast ingot, furnace cooling 30min to temperature come out of the stove after being 300 DEG C；The three high graphite mo(u)ld is first preheated to 200 DEG C using preceding；
Step 4: the copper manganese intermediate alloy ingot casting after coming out of the stove in step 3 is placed on alumina brick, it is air-cooled to room temperature, is obtained
To CuMn32 intermediate alloys.
After testing, the melting reality yield for the CuMn32 intermediate alloys that the present embodiment obtains is 99.2%.
Embodiment 2
The present embodiment includes the following steps：
Step 1: being put into the crucible of vacuum induction melting furnace using 7.2kg TU1 red copper bars and 4.8kg electrolytic manganeses as raw material
In, and 10Pa once is evacuated to vacuum induction melting furnace progress, it is then right under conditions of temperature is 750 DEG C~800 DEG C
Raw material preheating handles 5min；The quality purity of the red copper bar and electrolytic manganese is 99.95%；The crucible is that quality purity is
The 96% prefabricated crucible of magnesia；First into vacuum induction melting furnace, quality purity is 99.99% in the heat treatment process
Pressure in argon gas to vacuum induction melting furnace is -0.06Mpa, then carries out secondary vacuum pumping to 8Pa, time for being filled with argon gas
Number is 2 times, is vacuumized to vacuum induction melting furnace after being filled with argon gas every time；
Step 2: when the vacuum degree in vacuum induction melting furnace is reduced to 1Pa, treated by preheated in step 1
Raw material is heated to whole fusings, refines 1min under conditions of temperature is 1200 DEG C, cupromanganese melt is obtained, then to vacuum
It is filled with argon gas in induction melting furnace, 1250 DEG C are heated to cupromanganese melt as protective gas；
It is closed Step 3: the cupromanganese melt after will be heated in step 2 is cast in heat-resisting punching block to be formed among copper manganese
Golden ingot casting, furnace cooling 30min to temperature come out of the stove after being 300 DEG C；It is 0.5mm's that the surface spraying of the heat-resisting punching block, which has thickness,
Aluminum oxide coating layer；
Step 4: the copper manganese intermediate alloy ingot casting after coming out of the stove in step 3 is placed on alumina brick, it is air-cooled to room temperature, is obtained
To CuMn40 intermediate alloys.
After testing, the melting reality yield for the CuMn40 intermediate alloys that the present embodiment obtains is 99%.
Embodiment 3
Step 1: being put into the crucible of vacuum induction melting furnace using 6.6kg TU1 red copper bars and 5.4kg electrolytic manganeses as raw material
In, and 10Pa once is evacuated to vacuum induction melting furnace progress, it is then right under conditions of temperature is 750 DEG C~800 DEG C
Raw material preheating handles 5min；The quality purity of the red copper bar and electrolytic manganese is 99.95%；The crucible is that quality purity is
The 96% prefabricated crucible of aluminium oxide；First into vacuum induction melting furnace, quality purity is 99.99% in the heat treatment process
Pressure in argon gas to vacuum induction melting furnace is -0.06Mpa, then carries out secondary vacuum pumping to 5Pa, time for being filled with argon gas
Number is 3 times, is vacuumized to vacuum induction melting furnace after being filled with argon gas every time；
Step 2: when the vacuum degree in vacuum induction melting furnace is reduced to 1Pa, treated by preheated in step 1
Raw material is heated to whole fusings, refines 1min under conditions of temperature is 1200 DEG C, cupromanganese melt is obtained, then to vacuum
It is filled with argon gas in induction melting furnace, 1250 DEG C are heated to cupromanganese melt as protective gas；
It is closed Step 3: the cupromanganese melt after will be heated in step 2 is cast in heat-resisting punching block to be formed among copper manganese
Golden ingot casting, furnace cooling 30min to temperature come out of the stove after being 300 DEG C；It is 0.5mm's that the surface spraying of the heat-resisting punching block, which has thickness,
Aluminum oxide coating layer；
Step 4: the copper manganese intermediate alloy ingot casting after coming out of the stove in step 3 is placed on alumina brick, it is air-cooled to room temperature, is obtained
To CuMn45 intermediate alloys.
After testing, the melting reality yield for the CuMn45 intermediate alloys that the present embodiment obtains is 99.02%.
Embodiment 4
The present embodiment includes the following steps：
Step 1: being put into the earthenware of vacuum induction melting furnace using 6.25kg TU1 red copper bars and 6.25kg electrolytic manganeses as raw material
In crucible, and 6Pa once is evacuated to vacuum induction melting furnace progress, it is then right under conditions of temperature is 600 DEG C~650 DEG C
Raw material preheating handles 20min；The quality purity of the TU1 red copper bars and electrolytic manganese is 99.96%；The crucible is that quality is pure
The prefabricated crucible of aluminium oxide that degree is 96%；First into vacuum induction melting furnace, quality purity is in the heat treatment process
Pressure in 99.99% argon gas to vacuum induction melting furnace is -0.055Mpa, then carries out secondary vacuum pumping to 5Pa, described to fill
The number for entering argon gas is 3 times, is vacuumized to vacuum induction melting furnace after being filled with argon gas every time；
Step 2: when the vacuum degree in vacuum induction melting furnace is reduced to 1Pa, treated by preheated in step 1
Raw material is heated to whole fusings, refines 5min under conditions of temperature is 1170 DEG C, cupromanganese melt is obtained, then to vacuum
It is filled with argon gas in induction melting furnace, 1230 DEG C are heated to cupromanganese melt as protective gas；
It is formed among copper manganese Step 3: the cupromanganese melt after will be heated in step 2 is cast in three high graphite mo(u)lds
Alloy cast ingot, furnace cooling 30min to temperature come out of the stove after being 300 DEG C；The three high graphite mo(u)ld is first preheated to 200 DEG C using preceding；
Step 4: the copper manganese intermediate alloy ingot casting after coming out of the stove in step 3 is placed in the aluminum oxide sand that thickness is 40mm,
It is air-cooled to room temperature, obtains CuMn50 intermediate alloys.
After testing, the melting reality yield for the CuMn50 intermediate alloys that the present embodiment obtains is 98.8%.
Embodiment 5
The present embodiment includes the following steps：
Step 1: 8.16kg copper particles and 3.84kg manganese grains are put into as raw material in the crucible of vacuum induction melting furnace, and
10Pa once is evacuated to vacuum induction melting furnace progress, it is then pre- to raw material under conditions of temperature is 600 DEG C~750 DEG C
It is heat-treated 15min；The quality purity of the copper particle is 99.99%, and the quality purity of manganese grain is 99.95%；The crucible is matter
Measure the prefabricated crucible of magnesia that purity is 96%；First into vacuum induction melting furnace, quality purity is in the heat treatment process
Pressure in 99.99% argon gas to vacuum induction melting furnace is -0.05Mpa, then carries out secondary vacuum pumping to 10Pa, described to fill
The number for entering argon gas is 1 time；
Step 2: when the vacuum degree in vacuum induction melting furnace is reduced to 1Pa, treated by preheated in step 1
Raw material is heated to whole fusings, refines 4min under conditions of temperature is 1150 DEG C, cupromanganese melt is obtained, then to vacuum
It is filled with argon gas in induction melting furnace, 1200 DEG C are heated to cupromanganese melt as protective gas；
It is closed Step 3: the cupromanganese melt after will be heated in step 2 is cast in heat-resisting punching block to be formed among copper manganese
Golden ingot casting, furnace cooling 30min to temperature come out of the stove after being 400 DEG C；It is 0.8mm's that the surface spraying of the heat-resisting punching block, which has thickness,
Aluminum oxide coating layer；
Step 4: the copper manganese intermediate alloy ingot casting after coming out of the stove in step 3 is placed on alumina brick, it is air-cooled to room temperature, is obtained
To CuMn32 intermediate alloys.
After testing, the melting reality yield for the CuMn32 intermediate alloys that the present embodiment obtains is 98.85%.
Embodiment 6
The present embodiment includes the following steps：
Step 1: being put into the crucible of vacuum induction melting furnace using 7.2kg TU1 red copper bars and 4.8kg electrolytic manganeses as raw material
In, and 10Pa once is evacuated to vacuum induction melting furnace progress, it is then right under conditions of temperature is 750 DEG C~800 DEG C
Raw material preheating handles 5min；The quality purity of the red copper bar and electrolytic manganese is 99.95%；The crucible is that quality purity is
The 96% prefabricated crucible of magnesia；First into vacuum induction melting furnace, quality purity is 99.99% in the heat treatment process
Pressure in argon gas to vacuum induction melting furnace is -0.06Mpa, then carries out secondary vacuum pumping to 8Pa, time for being filled with argon gas
Number is 2 times, is vacuumized to vacuum induction melting furnace after being filled with argon gas every time；
Step 2: when the vacuum degree in vacuum induction melting furnace is reduced to 1Pa, treated by preheated in step 1
Raw material is heated to whole fusings, refines 1min under conditions of temperature is 1200 DEG C, cupromanganese melt is obtained, then to vacuum
It is filled with argon gas in induction melting furnace, 1250 DEG C are heated to cupromanganese melt as protective gas；
It is closed Step 3: the cupromanganese melt after will be heated in step 2 is cast in heat-resisting punching block to be formed among copper manganese
Golden ingot casting, furnace cooling 30min to temperature come out of the stove after being 300 DEG C；It is 1.0mm's that the surface spraying of the heat-resisting punching block, which has thickness,
Aluminum oxide coating layer；
Step 4: the copper manganese intermediate alloy ingot casting after coming out of the stove in step 3 is placed on alumina brick, it is air-cooled to room temperature, is obtained
To CuMn40 intermediate alloys.
After testing, the melting reality yield for the CuMn40 intermediate alloys that the present embodiment obtains is 98.9%.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention.It is every according to invention skill
Art essence still falls within technical solution of the present invention to any simple modification, change and equivalence change made by above example
Protection domain in.
Claims (10)
1. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy, which is characterized in that this method includes following step
Suddenly：
Step 1: copper and manganese are put into as raw material in the crucible of vacuum induction melting furnace, and vacuum induction melting furnace is carried out
It once vacuumizes, the pre-heat treatment then is carried out to raw material；The quality purity of the copper and manganese is not less than 99.95%；It is described pre-
Quality purity is first filled in heat treatment process into vacuum induction melting furnace and is 99.99% argon gas, then carries out secondary vacuum pumping,
Primary vacuumize is no more than 10Pa with the vacuum degree in vacuum induction melting furnace after secondary vacuum pumping；
Step 2: when the vacuum degree in vacuum induction melting furnace is reduced to 1Pa, by preheated treated raw material in step 1
It is heated to all melting and be refined, obtain cupromanganese melt, argon gas is then filled with into vacuum induction melting furnace as guarantor
Shield gas heats cupromanganese melt；
Step 3: the cupromanganese melt after will be heated in step 2, which is cast in heat-resisting punching block or three high graphite mo(u)lds, forms copper
Manganese intermediate alloy ingot casting is come out of the stove after furnace cooling 30min；
Step 4: the copper manganese intermediate alloy ingot casting after coming out of the stove in step 3 is placed in alumina brick or aluminum oxide sand, it is air-cooled to
Room temperature obtains high Mn content copper manganese intermediate alloy of the manganese mass content more than 30% and no more than 50%.
2. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy according to claim 1, feature exist
In copper described in step 1 is TU1 red copper bars, and manganese is electrolytic manganese.
3. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy according to claim 1, feature exist
In crucible described in step 1 is the oxidation that magnesia prefabricated crucible of the quality purity more than 95% or quality purity are more than 95%
The prefabricated crucible of aluminium.
4. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy according to claim 1, feature exist
In the mass content of manganese is more than 30% and is not more than 50% in raw material described in step 1.
5. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy according to claim 1, feature exist
In the temperature of the pre-heat treatment described in step 1 is 600 DEG C~800 DEG C, and the time is 5min~20min.
6. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy according to claim 1, feature exist
In the pressure being filled with described in step 1 after argon gas in vacuum induction melting furnace is -0.05Mpa~-0.06Mpa, is filled with argon gas
Number be 1~3 time.
7. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy according to claim 1, feature exist
In the temperature refined described in step 2 is 1150 DEG C~1200 DEG C, and the time is 1min~5min.
8. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy according to claim 1, feature exist
In the temperature of cupromanganese melt is 1200 DEG C~1250 DEG C after being heated described in step 2.
9. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy according to claim 1, feature exist
Have an aluminum oxide coating layer in, the surface spraying of heat-resisting punching block described in step 3, the thickness of the aluminum oxide coating layer be 0.5mm~
1.0mm, the three high graphite mo(u)ld are first preheated to 200 DEG C using preceding.
10. a kind of vacuum induction melting method of high Mn content copper manganese intermediate alloy according to claim 1, feature exist
In the temperature that the intermediate alloy ingot casting of copper manganese described in step 3 is come out of the stove is not higher than 400 DEG C.
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Cited By (6)
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| CN109722553A (en) * | 2019-01-18 | 2019-05-07 | 西安斯瑞先进铜合金科技有限公司 | A kind of preparation method of copper manganese intermediate alloy material |
| CN110512104A (en) * | 2019-08-27 | 2019-11-29 | 西安斯瑞先进铜合金科技有限公司 | One kind preparing CuMn by vacuum induction melting25Ni10The method of alloy material |
| CN111074041A (en) * | 2019-12-17 | 2020-04-28 | 陕西斯瑞新材料股份有限公司 | Method for improving purity of 304L stainless steel |
| CN114561550A (en) * | 2022-03-04 | 2022-05-31 | 洛阳双瑞精铸钛业有限公司 | Cobalt-chromium-molybdenum alloy smelting method capable of preventing remelting and splashing |
| CN115338374A (en) * | 2022-08-22 | 2022-11-15 | 宁波微泰真空技术有限公司 | Preparation method of ultra-high-purity copper-manganese cast ingot for semiconductor target material |
| CN115466862A (en) * | 2022-09-27 | 2022-12-13 | 同创普润(上海)机电高科技有限公司 | Smelting process of ultra-pure copper-aluminum alloy |
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