CN105603226A - Vacuum melting method of nickel-based high-temperature alloy - Google Patents
Vacuum melting method of nickel-based high-temperature alloy Download PDFInfo
- Publication number
- CN105603226A CN105603226A CN201610191941.7A CN201610191941A CN105603226A CN 105603226 A CN105603226 A CN 105603226A CN 201610191941 A CN201610191941 A CN 201610191941A CN 105603226 A CN105603226 A CN 105603226A
- Authority
- CN
- China
- Prior art keywords
- alloy
- titanium
- aluminium
- add
- crucible
- 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.)
- Granted
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 81
- 239000000956 alloy Substances 0.000 title claims abstract description 81
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 32
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 21
- 230000008018 melting Effects 0.000 title claims abstract description 13
- 238000002844 melting Methods 0.000 title claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000010936 titanium Substances 0.000 claims abstract description 44
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 42
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 42
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 31
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 25
- 239000010439 graphite Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 13
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052796 boron Inorganic materials 0.000 claims abstract description 12
- 238000007710 freezing Methods 0.000 claims abstract description 12
- 230000008014 freezing Effects 0.000 claims abstract description 12
- 238000010079 rubber tapping Methods 0.000 claims abstract description 12
- 238000007670 refining Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 claims description 39
- 238000003723 Smelting Methods 0.000 claims description 23
- 238000010792 warming Methods 0.000 claims description 17
- 238000001291 vacuum drying Methods 0.000 claims description 14
- 229910000601 superalloy Inorganic materials 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- 241001062472 Stokellia anisodon Species 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- -1 filtration Substances 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000001228 spectrum Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract 4
- 229910000521 B alloy Inorganic materials 0.000 abstract 2
- QDWJUBJKEHXSMT-UHFFFAOYSA-N boranylidynenickel Chemical compound [Ni]#B QDWJUBJKEHXSMT-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 239000000203 mixture Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 238000005275 alloying Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000505 pernicious effect Effects 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000796 S alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- 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
- C22C19/053—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 30% but less than 40%
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to an alloy melting method, and particularly relates to a vacuum melting method of a nickel-based high-temperature alloy. The method comprises the following steps: adding graphite which is 50 percent of the total carbon mass of the high-temperature alloy to the bottom of the crucible of a vacuum furnace, adding all elements in the high-temperature alloy, except aluminum, titanium, boron and nickel, into the crucible of the vacuum furnace for melting; adding the rest graphite into the crucible while heating, refining, and cooling; adding aluminum and titanium, and heating until aluminum and titanium are completely molten; insulating at 1410-1430 DEG C, adding nickel-boron alloy, and heating until the nickel-boron alloy is molten to obtain a molten metal; and cooling, freezing the molten metal, heating, tapping and pouring while filtering. According to the method, the durability and room-temperature tensile performance of the high-temperature alloy can be improved, and the molten metal can be further purified, so that high-quality nickel-based high-temperature alloy can be obtained.
Description
Technical field
The present invention relates to alloy smelting method, be specifically related to a kind of vacuum smelting method of nickel base superalloy.
Background technology
The technological difficulties that Aero-Space and civilian high-temperature alloy vacuum are smelted are, strictly control gas content in alloy (oxygen,Nitrogen, hydrogen), at present according to company standard, in many alloys, oxygen, nitrogen content are generally in 20ppm left and right. Only have in the alloy of reductionObjectionable impurities content, reduce the segregation of alloying element, improve the degree of purity of alloy molten solution, just can reach and propose heavy alloyed usePerformance and life-span. But vacuum metling process is a very complicated heat processing technique process, any one processing stepDesign all can alloy gas content, the performance of impurity content and alloy has material impact.
O in alloy, N, S can form non-metallic inclusion in alloy solution, as (Al2O3)，(Ti，Ta)C/N，(Ti，Ta) in S alloy, number and the form of non-metallic inclusion all can alloy combination property have significant impact. In addition alloy molten solutionDegree of purity is the important indicator of weighing master alloy ingot quality and manufacture level. In vacuum metling, be taking carbon as main deoxidant element, byReach the oxygen removal of metallic solution in the decomposition reaction of carbon, thereby reach the gas content reducing in alloy, clean metal is moltenLiquid, the object of raising alloy mass. Along with the carrying out of carbon deoxygenation, the overflowing of CO gas, by the hydrogen in alloy,Nitrogen pernicious gas is taken out of. Oxygen content is lower, and molten metal more easily evaporates, the also row of being easy to of low melting point objectionable impurities element in alloyRemove. Thereby deoxidation is a committed step of vacuum metling process, deoxidation effect has directly determined that the objectionable impurities in alloy containsCan amount, determining improve alloy serviceability and life-span.
In the alloy using in aviation, component generally all comprises several low melting point elements such as aluminium, titanium, boron. Adding these eutecticsWhen point element carries out Alloying Treatment, if the factors such as the opportunity that strictly control adds, temperature, vacuum can produceLarge scaling loss and volatilization, make alloy composition be difficult to control, thereby produce waste product. Specifically, while adding aluminium, titanium, boronVacuum too low or equipment leak rate is large, a large amount of aluminium, titanium, boron elements can produce oxidization burning loss, composition is difficult to control. AddMolten metal excess Temperature while entering aluminium, titanium, a large amount of aluminium, titanium can be put and should produce scaling loss and volatilization due to heat release. To metalWhile adding aluminium, titanium in liquation, can produce violent exothermic reaction, when especially addition is larger, molten metal exothermic reaction justGreatly. Even if it is suitable that aluminium, titanium add fashionable molten metal temperature, but addition is excessive due to one time, can produce equally scaling loss and vacuumVolatilization makes alloy composition be difficult to control. In addition, because aluminium, titanium, boron self are lighter, density is little, is joining Metal MeltingAfter in liquid, swim in molten metal surface, very easily produce segregation, can have a strong impact on the combination property of alloy. Specifically, boronJoining day also extremely important, add too early, very easily scaling loss, added evening, easily skewness, therefore grasps boron and addsTime just seem extremely important.
In view of the situation of currently available technology, need badly a kind of chemical composition of exploitation evenly, low melting point element scaling loss and volatilization less, closeThe vacuum smelting method of the nickel base superalloy that gold enduring quality and room temperature tensile performance are strong.
Summary of the invention
The object of this invention is to provide a kind of chemical composition evenly, low melting point element scaling loss and volatilization less, alloy enduring quality and chamberThe vacuum smelting method of the nickel base superalloy that temperature tensile property is strong.
The vacuum smelting method of nickel base superalloy of the present invention, comprises the following steps:
(1) first step carbon deoxidation:
The graphite that accounts for the total carbon containing quality 50% of high temperature alloy is joined in vacuum drying oven crucible, be placed in crucible bottommost, to vacuum drying ovenIn crucible, add all elements in the high temperature alloy except aluminium, titanium, boron, nickel to smelt;
(2) second step carbon deoxidation:
Temperature rises to 1570～1590 DEG C, in crucible, adds remaining graphite, refining, afterwards cooling;
(3) add aluminium, titanium:
Be cooled to 1370～1390 DEG C, add wherein aluminium, titanium, be warming up to aluminium, titanium all melts;
(4) add ni-b alloy:
Keep 1410～1430 DEG C of temperature, add wherein ni-b alloy, be warming up to ni-b alloy fusing, obtain molten metal;
(5) freezing molten metal, filtration, steel tapping casting:
Cooling, treats that temperature is down to 1360～1380 DEG C, then is warming up to 1450～1470 DEG C, adopts ceramic filter to filter one on one sideLimit steel tapping casting.
Wherein:
Step (1) graphite is the particle that spectrum graphite electrode is crushed to 2～5mm.
1560～1580 DEG C of step (1) smelting temperatures, the duration of heat 20～30min.
Step (2) molten metal temperature rises to 1570～1590 DEG C, adds remaining graphite, in power 80KW in crucibleLower refining 20～30min.
Step (3) is warming up to after aluminium, the whole fusings of titanium, then stirs 3～5min.
Step (4) is warming up to after the whole fusings of ni-b alloy, then stirs 3～5min.
Vacuum≤0.1Pa while adding aluminium, titanium, ni-b alloy. Boron should be in the melting later stage, before steel tapping casting, adds. Aluminium,When titanium addition is large, should be in two batches or many batches add, when general aluminium is 3wt.% left and right, when titanium is 3wt.% left and right, add for twiceEnter. If should consider when more aluminium Ti content that more times ground adds.
Step (5) cooling is carried out freezing molten metal and can be adopted after power failure, and the form of cooling, also can adopt other to fall naturallyTemperature form. Preferably the have a power failure form of nature cooling of the present invention.
Beneficial effect of the present invention is as follows:
The present invention adopts secondary to add carbon deep deoxidation technique, start high temperature alloy smelt before add account for two of the total phosphorus content of alloy/One graphite, graphite is added in the bottom of crucible. All after fusing, be raised to uniform temperature until metal, carry out secondary and add carbon and operate into oneStep is carried out deep deoxidation; Meanwhile, add opportunity and temperature by control aluminium, titanium, boron, make the chemical composition of alloy more even,Low melting point element scaling loss and volatilization are few; Freezing molten metal makes, in the process of molten metal cooling solidification, to be dissolved in Metal MeltingPernicious gas floating in liquid, utilizes vacuum drying oven to smelt the Negative Pressure Difference producing pernicious gas is further removed; Adopt ceramic filterAfter device filters, further clean metal liquation, thus obtain high-quality high temperature alloy, also ensure to reduce to greatest extent high temperatureO in alloy, N, the content of the content of H pernicious gas and low melting point objectionable impurities, reaches pure alloy molten solution, reduces alloyThe segregation of element, the object of guarantee alloy property. The present invention has improved enduring quality and the room temperature tensile performance of high temperature alloy, closesThe comprehensive mechanical property of gold and the quality of alloy all reach the level of domestic and international high duty alloy.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further.
Embodiment 1
Adopt vacuum smelting method of the present invention to produce according to the standard of K4648 alloy, its chemical composition is as shown in table 1,Performance parameter is as shown in table 2.
Taking 200Kg vacuum drying oven as example, vacuum smelting method of the present invention is as follows:
(1) first step carbon deoxidation:
The graphite that accounts for the total carbon containing quality 50% of high temperature alloy is joined in vacuum drying oven crucible, be placed in crucible bottommost, to vacuum drying ovenIn crucible, add all elements in the high temperature alloy except aluminium, titanium, boron, nickel to smelt; Graphite is spectrum graphite electrodeBe crushed to the particle of 2～5mm; 1570 ± 10 DEG C of smelting temperatures, the duration of heat 25min;
(2) second step carbon deoxidation:
Temperature rises to 1580 ± 10 DEG C, in crucible, adds remaining graphite, and under power 80KW, refining 25min, falls afterwardsTemperature;
(3) add aluminium, titanium:
Be cooled to 1380 ± 10 DEG C, add wherein aluminium, titanium, be warming up to aluminium, titanium all melts, then stir 5min;
(4) add ni-b alloy:
Keep 1420 ± 10 DEG C of temperature, add wherein ni-b alloy, be warming up to ni-b alloy fusing, then stir 3min, obtainMolten metal;
(5) freezing molten metal, filtration, steel tapping casting:
Freezing molten metal is carried out in cooling, treats that temperature is down to 1370 ± 10 DEG C, then is warming up to 1460 ± 10 DEG C, adopts ceramic filterFilter while steel tapping casting.
Vacuum≤0.1Pa while adding aluminium, titanium, ni-b alloy.
Table 1 embodiment 1 alloying component parameter list
With German import ON900 type oxygen-nitrogen analyzer mensuration oxygen and nitrogen content.
Table 2 embodiment 1 alloy property parameter list
Embodiment 2
Adopt vacuum smelting method of the present invention to produce according to the standard of K4648 alloy, its chemical composition is as shown in table 3,Performance parameter is as shown in table 4.
Taking 200Kg vacuum drying oven as example, vacuum smelting method of the present invention is as follows:
(1) first step carbon deoxidation:
The graphite that accounts for the total carbon containing quality 50% of high temperature alloy is joined in vacuum drying oven crucible, be placed in crucible bottommost, to vacuum drying ovenIn crucible, add all elements in the high temperature alloy except aluminium, titanium, boron, nickel to smelt; Graphite is spectrum graphite electrodeBe crushed to the particle of 2～5mm; 1580 ± 10 DEG C of smelting temperatures, the duration of heat 20min;
(2) second step carbon deoxidation:
Temperature rises to 1590 ± 10 DEG C, in crucible, adds remaining graphite, and under power 80KW, refining 20min, falls afterwardsTemperature;
(3) add aluminium, titanium:
Be cooled to 1390 ± 10 DEG C, add wherein aluminium, titanium, be warming up to aluminium, titanium all melts, then stir 3min;
(4) add ni-b alloy:
Keep 1410 ± 10 DEG C of temperature, add wherein ni-b alloy, be warming up to ni-b alloy fusing, then stir 5min, obtainMolten metal;
(5) freezing molten metal, filtration, steel tapping casting:
Freezing molten metal is carried out in cooling, treats that temperature is down to 1360 ± 10 DEG C, then is warming up to 1470 ± 10 DEG C, adopts ceramic filterFilter while steel tapping casting.
Vacuum≤0.1Pa while adding aluminium, titanium, ni-b alloy. All the other are as embodiment 1.
Table 3 embodiment 2 alloying component parameter lists
| Element | C | Si | Mn | P | S | Cr | Fe | Mo | W |
| Standard | 0.03/0.1 | ≤0.30 | ≤0.30 | ≤0.01 | ≤0.01 | 32.0/35 | ≤0.50 | 2.30/3.5 | 4.30/5.5 |
| Actual measurement | 0.062 | 0.044 | 0.0036 | 0.0045 | 0.00013 | 33.99 | 0.092 | 3.04 | 4.86 |
| Element | Nb | Ti | Al | B | Ce | Ni | O | N | / |
| Standard | 0.70/1.3 | 0.70/1.3 | 0.70/1.3 | ≤0.008 | ≤0.03 | More than | / | / | / |
| Actual measurement | 1.00 | 1.17 | 1.07 | 0.004 | 0.0001 | 54.26 | 7.4ppm | 8.13ppm | / |
With German import ON900 type oxygen-nitrogen analyzer mensuration oxygen and nitrogen content.
Table 4 embodiment 2 alloy property parameter lists
Embodiment 3
Adopt vacuum smelting method of the present invention to produce according to the standard of K4648 alloy, its chemical composition is as shown in table 5,Performance parameter is as shown in table 6.
Taking 200Kg vacuum drying oven as example, vacuum smelting method of the present invention is as follows:
(1) first step carbon deoxidation:
The graphite that accounts for the total carbon containing quality 50% of high temperature alloy is joined in vacuum drying oven crucible, be placed in crucible bottommost, to vacuum drying ovenIn crucible, add all elements in the high temperature alloy except aluminium, titanium, boron, nickel to smelt; Graphite is spectrum graphite electrodeBe crushed to the particle of 2～5mm; 1560 ± 10 DEG C of smelting temperatures, the duration of heat 30min;
(2) second step carbon deoxidation:
Temperature rises to 1570 ± 10 DEG C, in crucible, adds remaining graphite, and under power 80KW, refining 30min, falls afterwardsTemperature;
(3) add aluminium, titanium:
Be cooled to 1370 ± 10 DEG C, add wherein aluminium, titanium, be warming up to aluminium, titanium all melts, then stir 4min;
(4) add ni-b alloy:
Keep 1430 ± 10 DEG C of temperature, add wherein ni-b alloy, be warming up to ni-b alloy fusing, then stir 4min, obtainMolten metal;
(5) freezing molten metal, filtration, steel tapping casting:
Freezing molten metal is carried out in cooling, treats that temperature is down to 1380 ± 10 DEG C, then is warming up to 1450 ± 10 DEG C, adopts ceramic filterFilter while steel tapping casting.
Vacuum≤0.1Pa while adding aluminium, titanium, ni-b alloy. All the other are as embodiment 1.
Table 5 embodiment 3 alloying component parameter lists
| Element | C | Si | Mn | P | S | Cr | Fe | Mo | W |
| Standard | 0.03/0.1 | ≤0.30 | ≤0.30 | ≤0.01 | ≤0.01 | 32.0/35 | ≤0.50 | 2.30/3.5 | 4.30/5.5 |
| Actual measurement | 0.063 | 0.040 | 0.0085 | 0.005 | 0.00053 | 33.81 | 0.14 | 3.08 | 4.95 |
| Element | Nb | Ti | Al | B | Ce | Ni | O | N | / |
| Standard | 0.70/1.3 | 0.70/1.3 | 0.70/1.3 | ≤0.008 | ≤0.03 | More than | / | / | / |
| Actual measurement | 1.07 | 1.21 | 1.10 | 0.004 | 0.0006 | 54.12 | 7.1ppm | 7.5ppm | / |
Table 6 embodiment 3 alloy property parameter lists
By table, 1-6 can find out, in K4648 alloy, the content of oxygen, nitrogen is very low. Owing to having adopted secondary to add carbon deep deoxidation workSkill, alloying technology and freezing molten metal technique and filtering technique, other objectionable impurities content in alloy obviously declines.The room temperature tensile performance of the most outstanding is alloy and high temperature endurance performance have greatly and improve.
Claims (7)
1. a vacuum smelting method for nickel base superalloy, is characterized in that comprising the following steps:
(1) first step carbon deoxidation:
The graphite that accounts for the total carbon containing quality 50% of high temperature alloy is joined in vacuum drying oven crucible, be placed in crucible bottommost, to vacuum drying ovenIn crucible, add all elements in the high temperature alloy except aluminium, titanium, boron, nickel to smelt;
(2) second step carbon deoxidation:
Temperature rises to 1570～1590 DEG C, in crucible, adds remaining graphite, refining, afterwards cooling;
(3) add aluminium, titanium:
Be cooled to 1370～1390 DEG C, add wherein aluminium, titanium, be warming up to aluminium, titanium all melts;
(4) add ni-b alloy:
Keep 1410～1430 DEG C of temperature, add wherein ni-b alloy, be warming up to ni-b alloy fusing, obtain molten metal;
(5) freezing molten metal, filtration, steel tapping casting:
Cooling, treats that temperature is down to 1360～1380 DEG C, then is warming up to 1450～1470 DEG C, adopts ceramic filter to filter one on one sideLimit steel tapping casting.
2. the vacuum smelting method of nickel base superalloy according to claim 1, is characterized in that: step (1) graphiteFor spectrum graphite electrode is crushed to the particle of 2～5mm.
3. the vacuum smelting method of nickel base superalloy according to claim 1, is characterized in that: step (1) is smelted1560～1580 DEG C of temperature, the duration of heat 20～30min.
4. the vacuum smelting method of nickel base superalloy according to claim 1, is characterized in that: step (2) metalMelt temperature rises to 1570～1590 DEG C, in crucible, adds remaining graphite, refining 20～30min under power 80KW.
5. the vacuum smelting method of nickel base superalloy according to claim 1, is characterized in that: step (3) heats upAfter all melting to aluminium, titanium, then stir 3～5min.
6. the vacuum smelting method of nickel base superalloy according to claim 1, is characterized in that: step (4) heats upAfter all melting to ni-b alloy, then stir 3～5min.
7. according to the vacuum smelting method of the arbitrary described nickel base superalloy of claim 1～6, it is characterized in that: add aluminium,Vacuum≤0.1Pa when titanium, ni-b alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191941.7A CN105603226B (en) | 2016-03-30 | 2016-03-30 | The vacuum smelting method of nickel base superalloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191941.7A CN105603226B (en) | 2016-03-30 | 2016-03-30 | The vacuum smelting method of nickel base superalloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105603226A true CN105603226A (en) | 2016-05-25 |
| CN105603226B CN105603226B (en) | 2017-12-15 |
Family
ID=55983562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610191941.7A Active CN105603226B (en) | 2016-03-30 | 2016-03-30 | The vacuum smelting method of nickel base superalloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105603226B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048271A (en) * | 2016-06-27 | 2016-10-26 | 江苏美特林科特殊合金股份有限公司 | Degassing technology for high chromium and nickel base high-temperature alloy |
| CN106636757A (en) * | 2016-12-29 | 2017-05-10 | 西部超导材料科技股份有限公司 | Nickel-based high temperature alloy multi-stage deoxidation vacuum induction melting method |
| CN111590034A (en) * | 2020-06-05 | 2020-08-28 | 山东瑞泰新材料科技有限公司 | Pouring method of nickel-based alloy casting |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107686901B (en) * | 2016-08-04 | 2019-03-29 | 中国科学院金属研究所 | A kind of high purity nickel or high temperature alloy smelting process using pure calcium line |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098027A (en) * | 1993-07-24 | 1995-02-01 | 冶金工业部长沙矿冶研究院 | Catalyst for self-sharpening diamond and its preparing process |
| CN1451772A (en) * | 2003-05-09 | 2003-10-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for producing high-strength high wear-resistant nickel based alloy |
| CN1451773A (en) * | 2003-05-09 | 2003-10-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for producing high-temp.-and wear-resistant high strength alloy |
| JP2009114544A (en) * | 2008-12-26 | 2009-05-28 | Nippon Yakin Kogyo Co Ltd | METHOD OF REFINING Ni BASED ALLOY HAVING EXCELLENT HOT WORKABILITY |
| CN102719686A (en) * | 2012-06-29 | 2012-10-10 | 山西太钢不锈钢股份有限公司 | Method for smelting nickel-based high temperature alloy in vacuum induction furnace |
| CN103952578A (en) * | 2014-05-04 | 2014-07-30 | 江苏兴达高温合金科技有限公司 | K419 master alloy smelting process |
-
2016
- 2016-03-30 CN CN201610191941.7A patent/CN105603226B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098027A (en) * | 1993-07-24 | 1995-02-01 | 冶金工业部长沙矿冶研究院 | Catalyst for self-sharpening diamond and its preparing process |
| CN1451772A (en) * | 2003-05-09 | 2003-10-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for producing high-strength high wear-resistant nickel based alloy |
| CN1451773A (en) * | 2003-05-09 | 2003-10-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for producing high-temp.-and wear-resistant high strength alloy |
| JP2009114544A (en) * | 2008-12-26 | 2009-05-28 | Nippon Yakin Kogyo Co Ltd | METHOD OF REFINING Ni BASED ALLOY HAVING EXCELLENT HOT WORKABILITY |
| CN102719686A (en) * | 2012-06-29 | 2012-10-10 | 山西太钢不锈钢股份有限公司 | Method for smelting nickel-based high temperature alloy in vacuum induction furnace |
| CN103952578A (en) * | 2014-05-04 | 2014-07-30 | 江苏兴达高温合金科技有限公司 | K419 master alloy smelting process |
Non-Patent Citations (1)
| Title |
|---|
| 牛建平: "《纯净钢及高温合金制备技术》", 31 May 2009 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048271A (en) * | 2016-06-27 | 2016-10-26 | 江苏美特林科特殊合金股份有限公司 | Degassing technology for high chromium and nickel base high-temperature alloy |
| CN106636757A (en) * | 2016-12-29 | 2017-05-10 | 西部超导材料科技股份有限公司 | Nickel-based high temperature alloy multi-stage deoxidation vacuum induction melting method |
| CN111590034A (en) * | 2020-06-05 | 2020-08-28 | 山东瑞泰新材料科技有限公司 | Pouring method of nickel-based alloy casting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105603226B (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105803233B (en) | The smelting process of nickel-base alloy containing aluminium titanium boron zirconium | |
| CN105734314B (en) | The vacuum metling technique of nickel base superalloy | |
| CN105648278B (en) | The smelting process of nickel base superalloy | |
| CN108546834B (en) | Purification smelting method for nickel-based high-temperature alloy master alloy | |
| CN110592506B (en) | GH4780 alloy blank and forging and preparation method thereof | |
| CN105238934B (en) | A kind of vacuum induction melting method of nitrogen content in reduction high temperature alloy | |
| CN105603226B (en) | The vacuum smelting method of nickel base superalloy | |
| KR101053220B1 (en) | Manufacturing method of iron-based amorphous material | |
| CN105908218B (en) | A kind of high pure rare earth metals and its production and use | |
| JP2017057461A (en) | Fe-Cr-Ni-BASED ALLOY EXCELLENT IN HIGH TEMPERATURE STRENGTH | |
| CN105714134B (en) | The vacuum metling technique of nickel-base alloy containing aluminium titanium boron zirconium | |
| CN105624473B (en) | The vacuum metling technique of high temperature alloy | |
| Li et al. | The denitrification behavior during electron beam smelting of FGH4096 alloy | |
| CN105308196B (en) | The production method of Maraging steel and the miniaturization method of field trash | |
| Bian et al. | Influence of yttrium and vacuum degree on the purification of K417 superalloy | |
| CN107760903B (en) | The smelting process of high chromium nickel-base cast superalloy | |
| CN104073738B (en) | Austenitic heat-resistance steel and preparation method thereof | |
| CN107739892B (en) | The vacuum metling technique of nickel-base cast superalloy | |
| CN105803232B (en) | The vacuum metling technique of nickel base superalloy containing aluminium titanium boron zirconium | |
| CN115323117B (en) | Smelting method for deep desulfurization of high-temperature alloy | |
| CN107794386B (en) | The vacuum smelting method of high chromium nickel-base cast superalloy | |
| CN115261650A (en) | Preparation process of nickel-chromium intermediate alloy | |
| CN106381441B (en) | A kind of 10Cr11Co3W3NiMoVNbNB low carbon low silicons low-aluminium high boron steel smelting process | |
| JPH0472039A (en) | High purity heat resistant steel | |
| JP3604035B2 (en) | Method for producing maraging steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Vacuum smelting method for nickel based high-temperature alloys Granted publication date: 20171215 Pledgee: China postal savings bank, Yiyuan County branch, Limited by Share Ltd. Pledgor: SHANDONG ROITIE NEW MATERIAL SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2024980017905 |