CN113584347A - Smelting process of high-temperature alloy - Google Patents
Smelting process of high-temperature alloy Download PDFInfo
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- CN113584347A CN113584347A CN202110624137.4A CN202110624137A CN113584347A CN 113584347 A CN113584347 A CN 113584347A CN 202110624137 A CN202110624137 A CN 202110624137A CN 113584347 A CN113584347 A CN 113584347A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
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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
- C22C1/023—Alloys based on nickel
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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
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention relates to a smelting process of high-temperature alloy, which comprises the following steps of nickel allowance, cobalt 10-11.5%, carbon 0.04-0.09%, aluminum 2.8-3.3%, molybdenum 1.6-2.3%, tungsten 4.7-5.9%, titanium 4.2-5.0%, niobium 0.1-0.3%, hafnium 0.2-0.4%, chromium 15.4-16.3% and boron 0.06-0.1%, wherein the beneficial effects are as follows: through heating, heat preservation, outage cooling many times, add the batching simultaneously, the effect of protection can be played to this kind of mode to avoid through the mode of continuous heating, and then make the phenomenon that not up to standard appears smelting easily, reduced the efficiency of work.
Description
Technical Field
The invention discloses a smelting process of a high-temperature alloy, and belongs to the field of high-temperature alloys.
Background
Along with the development of national strength of China and the continuous improvement of economy, the smelting processing industry of China is greatly improved compared with the prior art, for example, the smelting of high-temperature alloy has the characteristics of improved high-temperature strength, oxidation resistance and corrosion resistance, so that the high-temperature alloy is widely applied to various industries.
However, in the existing smelting process, the processing temperature cannot be well controlled during processing, so that the strength of the high-temperature alloy is reduced, the smelting quality of the high-temperature alloy is reduced, and meanwhile, the high temperature is kept during processing, so that the smelting difficulty is increased, the phenomenon that the smelting does not reach the standard easily occurs, and the working efficiency is reduced.
Disclosure of Invention
The invention aims to provide a smelting process of a high-temperature alloy.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a dyeing liquid capable of quickly changing color, which comprises the following elements: the balance of nickel, 10 to 11.5 percent of cobalt, 0.04 to 0.09 percent of carbon, 2.8 to 3.3 percent of aluminum, 1.6 to 2.3 percent of molybdenum, 4.7 to 5.9 percent of tungsten, 4.2 to 5.0 percent of titanium, 0.1 to 0.3 percent of niobium, 0.2 to 0.4 percent of hafnium, 15.4 to 16.3 percent of chromium and 0.06 to 0.1 percent of boron.
As a preferable technical scheme of the invention, a part of small nickel plates and 1/2 carbon are placed at the bottom of the crucible, and then molybdenum, tungsten, cobalt, chromium and all nickel plates are sequentially placed.
As a preferable technical scheme of the invention, 1/2 carbon, 1/2 aluminum and titanium, 1/2 aluminum and titanium, niobium, hafnium and ferroboron are sequentially put into the charging hopper.
As a preferred technical scheme of the invention, the interior of the crucible is vacuumized, power is supplied for heating when the vacuum degree is less than 20Pa, the power supply power is gradually increased on the premise of controlling the vacuum degree to be less than 20Pa, and the furnace charge can be raised to full power after the bottom of the furnace charge is reddish.
As a preferred technical scheme of the invention, the full-power heating is continued after the melting down, the temperature of the molten steel is controlled to be 1580 +/-10 ℃, 1/2 carbon is added, the temperature is kept for 30min, and the power is cut off and the temperature is reduced after the temperature is kept.
As a preferable technical scheme of the invention, 1/2 aluminum and 1/2 titanium are added after the liquid level slightly forms a film, the full-power heating is carried out for 5min after the addition of the materials, and then the power is cut off and the temperature is reduced.
As a preferable technical scheme of the invention, 1/2 aluminum and 1/2 titanium are added after the liquid level slightly forms a film, the full-power heating is carried out for 5min after the addition, niobium, hafnium and ferroboron are added after the liquid level slightly forms a film, and the full-power heating is carried out for 5min after the addition.
As a preferred technical scheme of the invention, the components in the sample are analyzed after the sampling operation is carried out, the power is cut off and the temperature is reduced after the components are adjusted to be qualified, and the liquid level is heated to 1560 +/-10 ℃ with full power after slight conjunctiva.
As a preferred technical scheme of the invention, the liquid guide surface is slightly filmed after power-off and temperature reduction, then the liquid guide surface is heated to 1460 +/-10 ℃ with full power, the power is controlled at 40KW, and the liquid guide surface is cast in an electrified way, cooled and solidified for 5-15min and then is discharged from the furnace in a vacuum way.
The invention has the following beneficial effects: through heating, heat preservation, outage cooling many times, add the batching simultaneously, the effect of protection can be played to this kind of mode to avoid through the mode of continuous heating, and then make the phenomenon that not up to standard appears smelting easily, reduced the efficiency of work.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention relates to a dyeing liquid capable of quickly changing color, which comprises the following elements: the balance of nickel, 10 to 11.5 percent of cobalt, 0.04 to 0.09 percent of carbon, 2.8 to 3.3 percent of aluminum, 1.6 to 2.3 percent of molybdenum, 4.7 to 5.9 percent of tungsten, 4.2 to 5.0 percent of titanium, 0.1 to 0.3 percent of niobium, 0.2 to 0.4 percent of hafnium, 15.4 to 16.3 percent of chromium and 0.06 to 0.1 percent of boron.
As a preferred technical scheme of the invention, a part of small nickel plates and 1/2 carbon are placed at the bottom of the crucible, and then molybdenum, tungsten, cobalt, chromium and all nickel plates are sequentially placed.
As a preferable technical scheme of the invention, 1/2 carbon, 1/2 aluminum and titanium, 1/2 aluminum and titanium, niobium, hafnium and ferroboron are sequentially put into a charging hopper.
As a preferred technical scheme of the invention, the interior of the crucible is vacuumized, power is supplied for heating when the vacuum degree is less than 20Pa, the power supply power is gradually increased on the premise of controlling the vacuum degree to be less than 20Pa, and the furnace charge can be raised to full power after the bottom of the furnace charge is reddish.
As a preferred technical scheme of the invention, full-power heating is continued after melting down, the temperature of molten steel is controlled at 1580 +/-10 ℃, 1/2 carbon is added, heat preservation is carried out for 30min, and power is cut off and temperature is reduced after heat preservation is finished.
As a preferred technical scheme of the invention, 1/2 aluminum and 1/2 titanium are added after the liquid level is slightly conjunctival, the full-power heating is carried out for 5min after the addition of the materials, and then the power is cut off and the temperature is reduced.
As a preferred technical scheme of the invention, 1/2 aluminum and 1/2 titanium are added after the liquid level slightly forms a film, the full-power heating is carried out for 5min after the material is added, niobium, hafnium and ferroboron are added after the liquid level slightly forms a film, and the full-power heating is carried out for 5min after the material is added.
10. As a preferred technical scheme of the invention, the components in the sample are analyzed after the sampling operation is carried out, the power is cut off and the temperature is reduced after the components are adjusted to be qualified, and the liquid level is heated to 1560 +/-10 ℃ with full power after slight conjunctiva.
As a preferred technical scheme of the invention, the liquid guide surface is slightly filmed after power is cut off, the liquid guide surface is heated to 1460 +/-10 ℃ with full power, the power is controlled to be 40KW, the liquid guide surface is electrically cast, and the liquid guide surface is broken and vacuumized and discharged after being cooled and solidified for 5-15 min.
Specifically, when the crucible is used, a part of small nickel plates and 1/2 carbon are added at the bottom of the crucible, molybdenum, tungsten, cobalt, chromium and all nickel plates are sequentially placed, 1/2 carbon, 1/2 aluminum, titanium, 1/2 aluminum, titanium, niobium, hafnium and ferroboron are sequentially placed in a charging hopper, after all the nickel plates are placed, the crucible is closed and vacuumized, power is supplied to heat when the vacuum degree is less than 20Pa, the power supply power is gradually increased on the premise that the vacuum degree is less than 20Pa, and the bottom of a furnace charge can be raised to full power after being reddish.
Heating at full power after melting, controlling the temperature of molten steel at 1580 + -10 deg.C, adding 1/2 carbon, keeping the temperature for 30min, cutting off power, cooling, adding 1/2 aluminum and 1/2 titanium after the liquid surface is slightly coated with film, heating at full power for 5min after feeding, cutting off power, cooling, adding 1/2 aluminum and 1/2 titanium after the liquid surface is slightly coated with film, heating at full power for 5min after feeding, adding niobium, hafnium and ferroboron after the liquid surface is slightly coated with film, heating at full power for 5min after feeding, then starting sampling operation, analyzing components of the sample, adjusting the components to be qualified, then cutting off the power and reducing the temperature, heating to 1560 +/-10 ℃ at full power after the liquid level is slightly coated with the film, finally cutting off the power and reducing the temperature to drain the liquid level to be slightly coated with the film, heating to 1460 +/-10 ℃ at full power, controlling the power to 40KW, pouring in a charged manner, cooling and solidifying for 5-15min, and then breaking vacuum and discharging.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The smelting process of the high-temperature alloy is characterized by comprising the following elements: the balance of nickel, 10 to 11.5 percent of cobalt, 0.04 to 0.09 percent of carbon, 2.8 to 3.3 percent of aluminum, 1.6 to 2.3 percent of molybdenum, 4.7 to 5.9 percent of tungsten, 4.2 to 5.0 percent of titanium, 0.1 to 0.3 percent of niobium, 0.2 to 0.4 percent of hafnium, 15.4 to 16.3 percent of chromium and 0.06 to 0.1 percent of boron.
2. A smelting process of a high-temperature alloy as claimed in claim 1, wherein a part of small nickel plates and 1/2 carbon are placed at the bottom of the crucible, and then molybdenum, tungsten, cobalt, chromium and all nickel plates are placed in sequence.
3. A superalloy smelting process as claimed in claim 1, wherein 1/2 carbon, 1/2 aluminium and titanium, 1/2 aluminium and titanium, niobium, hafnium, ferroboron are placed in sequence in the hopper.
4. A process for smelting a superalloy as in claim 1, wherein the crucible is evacuated, the crucible is heated by supplying power when the degree of vacuum is less than 20Pa, the power supplied is gradually increased while controlling the degree of vacuum to be less than 20Pa, and the crucible is heated to full power after the bottom of the charge is reddish.
5. A smelting process of a high-temperature alloy according to claim 4, wherein full-power heating is continued after the melting down, the temperature of molten steel is controlled to be 1580 +/-10 ℃, heat preservation is carried out for 30min after 1/2 carbon is added, and the temperature is reduced after the heat preservation is finished.
6. A smelting process of a high-temperature alloy as claimed in claim 5, wherein 1/2 aluminum and 1/2 titanium are added after the liquid level is slightly coated with a film, the heating is carried out for 5min at full power after the addition, and then the temperature is reduced after the power is cut off.
7. A smelting process of a high-temperature alloy as claimed in claim 6, wherein 1/2 aluminum and 1/2 titanium are added after the liquid level slightly forms a film, the full-power heating is carried out for 5min after the addition, niobium, hafnium and ferroboron are added after the liquid level slightly forms a film, and the full-power heating is carried out for 5min after the addition.
8. A process as claimed in claim 7, wherein the sampling operation is followed by analysis of the components in the sample, adjustment of the components to acceptable levels and subsequent reduction in temperature by de-energisation and heating to 1560 ± 10 ℃ at full power after slight subconjunctival.
9. A smelting process of a high-temperature alloy according to claim 3, wherein the liquid-guiding surface is slightly filmed after power-off cooling, the power is controlled at 40KW after full-power heating to 1460 ± 10 ℃, electric pouring is carried out, and vacuum breaking and discharging are carried out after cooling solidification for 5-15 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624137.4A CN113584347A (en) | 2021-06-04 | 2021-06-04 | Smelting process of high-temperature alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624137.4A CN113584347A (en) | 2021-06-04 | 2021-06-04 | Smelting process of high-temperature alloy |
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| Publication Number | Publication Date |
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| CN113584347A true CN113584347A (en) | 2021-11-02 |
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| CN202110624137.4A Pending CN113584347A (en) | 2021-06-04 | 2021-06-04 | Smelting process of high-temperature alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231767A (en) * | 2021-12-16 | 2022-03-25 | 中国科学院金属研究所 | Method for controlling sigma phase precipitation of hot corrosion resistant nickel-based superalloy |
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2021
- 2021-06-04 CN CN202110624137.4A patent/CN113584347A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231767A (en) * | 2021-12-16 | 2022-03-25 | 中国科学院金属研究所 | Method for controlling sigma phase precipitation of hot corrosion resistant nickel-based superalloy |
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