CN116833393A - Alloy ingot defect repairing method and alloy ingot - Google Patents
Alloy ingot defect repairing method and alloy ingot Download PDFInfo
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- CN116833393A CN116833393A CN202310711504.3A CN202310711504A CN116833393A CN 116833393 A CN116833393 A CN 116833393A CN 202310711504 A CN202310711504 A CN 202310711504A CN 116833393 A CN116833393 A CN 116833393A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 122
- 239000000956 alloy Substances 0.000 title claims abstract description 122
- 230000007547 defect Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 41
- 238000005266 casting Methods 0.000 claims abstract description 35
- -1 yttrium metals Chemical class 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000004512 die casting Methods 0.000 claims abstract description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000011651 chromium Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 27
- 229910000676 Si alloy Inorganic materials 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000013077 target material Substances 0.000 description 6
- 229910000946 Y alloy Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 229910018487 Ni—Cr Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- RFEISCHXNDRNLV-UHFFFAOYSA-N aluminum yttrium Chemical compound [Al].[Y] RFEISCHXNDRNLV-UHFFFAOYSA-N 0.000 description 2
- 238000009750 centrifugal casting Methods 0.000 description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006023 eutectic alloy Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229910002059 quaternary alloy Inorganic materials 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005477 sputtering target Methods 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/12—Appurtenances, e.g. for sintering, for preventing splashing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of alloy ingot waste recycling and processing, and discloses an alloy ingot defect repairing method and an alloy ingot, wherein the alloy ingot defect repairing method comprises the following steps: step 1: placing an alloy cast ingot with shrinkage porosity and/or air holes inside into a casting mold, and heating and softening; step 2: vibrating a casting die after the alloy ingot is softened, and casting the surface of the ingot; step 3: cooling, and taking out the alloy cast ingot; wherein the vibration frequency of the vibration is 35-40kHZ; the specific operation of the lower die casting ingot surface in the step 2 is as follows: adopting a clean fear head to press downwards on the surface of an ingot for 5 times, wherein the pressing pressure of each time is 200-300 kg, the pressing time is 2-4s, and the time interval between two adjacent pressing times is 10-12s; the alloy cast ingot is an alloy cast ingot at least containing nickel, chromium, aluminum and yttrium metals. According to the invention, the vibration casting die and the surface of the lower die casting ingot are combined to apply force to the alloy ingot, so that the defects of shrinkage porosity, air holes and the like in the alloy ingot are reduced, and the defects of the alloy ingot are repaired.
Description
Technical Field
The invention relates to the technical field of alloy ingot waste recycling and processing, in particular to an alloy ingot defect repairing method and an alloy ingot.
Background
At present, the sputtering target material has wide application, including the fields of electronics and information industry, glass coating and the like. In a sputtering machine table, high-purity metal atoms are deposited on a silicon wafer by bombarding the surface of a target material in a vacuum state. The target is divided into: the planar target and the rotary target, the planar target has the following consumption of normal sputtering: 35% -40%, and the normal sputtering consumption of the rotary target material can reach more than 70%.
In the production and processing process of the target material, the process control of working procedures such as smelting, casting and the like is extremely critical, because the defect problem generated in the cast ingot can have adverse effects on the working procedures such as subsequent hot rolling, cold rolling, heat treatment and the like, the post working procedures can not be corrected, most defects are shown on the final product, and various properties and surface quality of the material are reduced. But inevitably contain a number of defects such as shrinkage porosity, pinholes, cracks, nonmetallic inclusions and inclusions during the casting process.
Common solutions for shrinkage porosity and shrinkage porosity are modes of controlling temperature difference in the solidification process, or feeding head feeding and the like; the common solution for the air holes is to properly increase the casting temperature and reduce the casting speed, and establish good gassing conditions so as to facilitate the floating of the air bubbles.
Such as D1: chinese patent 202210785089.1 discloses a preparation method of a fine-grain high-density nickel-chromium-aluminum-yttrium-silicon alloy target material, which comprises the steps of preparing AlSi, alY eutectic alloy and NiCr20 alloy through component design, proportioning according to specified components of the target material, and vacuum smelting to obtain nickel-chromium-aluminum-yttrium-silicon alloy melt; during casting, the inclined cooler is utilized to improve the fluidity of the alloy melt and reduce the casting temperature, so as to refine the crystal grains of the cast ingot; casting alloy melt along the die wall by utilizing a conical drainage sheet between the heat-insulating riser and the graphite die, and refining ingot crystal grains; meanwhile, the ultrasonic vibration at the bottom of the die is combined to refine grains, the lower end is circularly cooled to promote the ingot to directionally solidify, refine grains and improve compactness.
The above patent calculates and designs the components of the intermediate eutectic alloy, thereby reducing the solid-liquid phase crystallization temperature difference of the nickel-chromium-aluminum-yttrium-silicon alloy cast ingot and achieving the purpose of reducing or eliminating the shrinkage cavity defect of the cast ingot.
As another example D2: chinese patent 202010517407.7 discloses a preparation method of a nickel-chromium-aluminum-yttrium-silicon alloy target, which comprises the following steps: mixing nickel and chromium and putting the mixture into a crucible in a first vacuum melting furnace to obtain nickel-chromium intermediate alloy melt; mixing aluminum and yttrium and putting the mixture into a crucible in a second vacuum melting furnace together to obtain aluminum-yttrium intermediate alloy melt; mixing the nickel-chromium intermediate alloy solution, the aluminum-yttrium intermediate alloy solution and silicon, and putting the mixture into a crucible in a third vacuum melting furnace together for melting to obtain the nickel-chromium aluminum-yttrium-silicon alloy solution; placing the nickel-chromium-aluminum-yttrium-silicon alloy molten liquid into a graphite mold for centrifugal casting to obtain a nickel-chromium-aluminum-yttrium-silicon alloy target ingot; and annealing, deoxidizing and machining the nickel-chromium-aluminum-yttrium-silicon alloy target ingot in sequence to obtain the nickel-chromium-aluminum-yttrium-silicon alloy target.
The above patent solves the technical problems of a large number of shrinkage cavities, looseness and the like in the gravity casting alloy by keeping the graphite mold to rotate for 40-60 circles/min along the self axis in the centrifugal casting process and applying 2000-4000 times/min of vibration to enable molten liquid to be slowly cooled and molded in the rotating mold.
However, both the above patents are prepared during casting, and although the defect rate of the ingot is effectively reduced, it is still not completely avoided that a certain number of defective ingots are generated, and the defective ingots can only be remelted, cast and the like to form new ingots, thus consuming a great deal of production time and production cost.
There is therefore a need to develop a remedy for an ingot that has developed defects, to repair the defects of a formed alloy ingot.
However, since the ingot with high hardness and brittle material cannot heal internal defects by plastic deformation in the later stage due to its own properties, it is necessary to repair defects of alloy ingots containing nickel, chromium, aluminum and yttrium metals by another method.
Disclosure of Invention
The invention aims to provide a method for repairing defects of an alloy ingot, which aims to solve the problems that in the prior art, the alloy ingot which has generated defects such as shrinkage porosity, air holes and the like can only be remelted and cast, so that the production time and the production cost are greatly increased.
The invention further aims to provide an alloy ingot, which is repaired by adopting the alloy ingot defect repairing method, and the alloy ingot with defects such as shrinkage porosity, air holes and the like does not need to be reworked, so that the time and the cost are greatly saved.
In order to achieve the above purpose, the invention provides a method for repairing defects of alloy ingots, which comprises the following specific steps:
step 1: placing an alloy cast ingot with shrinkage porosity and/or air holes inside into a casting mold, and heating and softening;
step 2: vibrating a casting die after the alloy ingot is softened, and casting the surface of the ingot;
step 3: cooling, and taking out the alloy cast ingot;
wherein the vibration frequency of the vibration is 35-40kHZ.
Further, a clean fear head is adopted to press downwards on the surface of the cast ingot for 5 times, the pressing pressure of each time is 200-300 kg force, the pressing time is 2-4s, and the interval between two adjacent pressing times is 10-12s;
the alloy cast ingot is an alloy cast ingot at least containing nickel, chromium, aluminum and yttrium metals.
Preferably, the alloy cast ingot is a quaternary alloy cast ingot, a quinary alloy cast ingot and a six-membered alloy cast ingot which at least contain nickel, chromium, aluminum and yttrium metals.
More preferably, the alloy cast ingot is a nickel-chromium-aluminum-yttrium alloy cast ingot or a nickel-cobalt-chromium-aluminum-yttrium alloy cast ingot.
Furthermore, the cooling speed in the step 3 is less than 15 ℃/min.
Further, the temperature rise in the step 1 is 1500-2000 ℃.
Preferably, the temperature rise in the step 1 is selected from 1500 ℃, 1600 ℃, 1700 ℃, 1800 ℃, 1900 ℃ and 2000 ℃.
Preferably, the casting mold is a graphite mold.
The invention also provides an alloy ingot, which is obtained by repairing the defective alloy ingot by adopting the alloy ingot defect repairing method.
Advantageous effects
Compared with the prior art, the invention has at least the following advantages:
(1) The vibration casting die and the lower die casting ingot surface are combined to apply force to the alloy ingot, so that shrinkage porosity, air holes and other defects in the alloy ingot are reduced, and the defects of the alloy ingot are repaired;
(2) The defective alloy cast ingot does not need to be reworked by turning over a furnace, and the procedures of remelting, casting and the like are not needed, so that the production time and the production cost are greatly reduced.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a photograph of an alloy ingot repaired in example 3;
FIG. 2 is a photograph of an alloy ingot obtained in comparative example 2.
Detailed Description
The invention is further described below in connection with the examples, which are not to be construed as limiting the invention in any way, but rather as a limited number of modifications which are within the scope of the appended claims.
In order to explain the technical content of the present invention in detail, the following description will further explain the embodiments.
The alloy ingots containing shrinkage porosity and/or air holes in the following examples and comparative examples were 15kg nickel-chromium-aluminum-yttrium alloy ingots.
Example 1
An alloy ingot is prepared by the following steps:
step 1: placing the alloy cast ingot with shrinkage porosity and/or air holes inside into a graphite die, and heating to 1500 ℃ to soften the alloy cast ingot;
step 2: vibrating the casting mould at a vibration frequency of 35kHZ, and pressing the surface of the die-casting ingot for 5 times, wherein the pressing pressure is 200 kg force each time, the pressing time is 4s, and the time interval between two adjacent pressing times is 12s;
step 3: cooling at a cooling speed of 10 ℃/min, and taking out the alloy ingot after the alloy ingot is cooled to room temperature.
Example 2
An alloy ingot is prepared by the following steps:
step 1: placing the alloy cast ingot with shrinkage porosity and/or air holes inside into a graphite die, and heating to 1500 ℃ to soften the alloy cast ingot;
step 2: vibrating the casting mould at a vibration frequency of 40kHZ, and pressing the surface of the die-casting ingot for 5 times, wherein the pressing pressure is 200 kg force each time, the pressing time is 4s, and the time interval between two adjacent pressing times is 12s;
step 3: cooling at a cooling speed of 10 ℃/min, and taking out the alloy ingot after the alloy ingot is cooled to room temperature.
Example 3
An alloy ingot is prepared by the following steps:
step 1: placing the alloy cast ingot with shrinkage porosity and/or air holes inside into a graphite die, and heating to 1500 ℃ to soften the alloy cast ingot;
step 2: vibrating the casting mold at a vibration frequency of 37.5kHZ, and pressing the surface of the die-casting ingot for 5 times, wherein the pressing pressure is 200 kg force each time, the pressing time is 4s, and the time interval between two adjacent pressing times is 12s;
step 3: cooling at a cooling speed of 10 ℃/min, and taking out the alloy ingot after the alloy ingot is cooled to room temperature.
Example 4
An alloy ingot is prepared by the following steps:
step 1: placing the alloy cast ingot with shrinkage porosity and/or air holes inside into a graphite die, and heating to 1500 ℃ to soften the alloy cast ingot;
step 2: vibrating the casting mold at a vibration frequency of 37.5kHZ, and pressing the surface of the die-casting ingot for 5 times, wherein the pressing pressure of each pressing is 300 kg force, the pressing time is 2s, and the time interval between two adjacent pressing times is 10s;
step 3: cooling at a cooling speed of 10 ℃/min, and taking out the alloy ingot after the alloy ingot is cooled to room temperature.
Example 5
An alloy ingot is prepared by the following steps:
step 1: placing the alloy cast ingot with shrinkage porosity and/or air holes inside into a graphite die, and heating to 2000 ℃ to soften the alloy cast ingot;
step 2: vibrating the casting mold at a vibration frequency of 37.5kHZ, and pressing the surface of the casting ingot for 5 times, wherein the pressing pressure of each pressing is 250 kg force, the pressing time is 2s, and the time interval between two adjacent pressing is 10s;
step 3: cooling at a cooling speed of 10 ℃/min, and taking out the alloy ingot after the alloy ingot is cooled to room temperature.
Comparative example 1
Substantially the same as in example 3, except that the above-mentioned step 2 was changed to: the casting mold was vibrated at a vibration frequency of 37.5kHZ without dropping the ingot surface.
Comparative example 2
Substantially the same as in example 3, except that the above-mentioned step 2 was changed to: the die is not vibrated, the surface of the ingot is subjected to die casting for 5 times, the pressing pressure of each pressing is 200 kg, the pressing time is 4s, and the time interval between two adjacent pressing times is 12s.
Comparative example 3
Substantially the same as in example 3, except that the above-mentioned step 2 was changed to: the casting mold was vibrated at a vibration frequency of 37.5kHZ and the ingot surface was lowered 4 times, the pressure of each lowering was 200 kg force, the lowering time was 4s, and the interval between the adjacent two lowering times was 12s.
Comparative example 4
Substantially the same as in example 3, except that the above-mentioned step 2 was changed to: the casting mold was vibrated at a vibration frequency of 37.5kHZ and the ingot surface was lowered 5 times, the pressure of each lowering was 150 kg force, the lowering time was 4s, and the interval between the adjacent two lowering times was 12s.
Comparative example 5
Substantially the same as in example 3, except that the above-mentioned step 2 was changed to: the casting mold was vibrated at a vibration frequency of 37.5kHZ and the ingot surface was lowered 5 times, the pressure of each lowering was 400 kg force, the lowering time was 4s, and the interval between the adjacent two lowering times was 12s.
Comparative example 6
Substantially the same as in example 3, except that the above-mentioned step 2 was changed to: the casting mold was vibrated at a vibration frequency of 37.5kHZ and the ingot surface was lowered 5 times, the pressure of each lowering was 200 kg force, the lowering time was 4s, and the interval between the adjacent two lowering times was 8s.
Comparative example 7
Substantially the same as in example 3, except that the above-mentioned step 2 was changed to: the casting mold was vibrated at a vibration frequency of 37.5kHZ and the ingot surface was lowered 5 times, the pressure of each lowering was 200 kg force, the lowering time was 2s, and the interval between the adjacent two lowering times was 12s.
Product result comparison
Because the nickel-chromium-aluminum-yttrium alloy cast ingot is an alloy cast ingot with high hardness, whether shrinkage porosity and air holes exist in the alloy cast ingot can be obtained through external observation, and the internal defect repairing results of the alloy cast ingots obtained in examples 1-5 and comparative examples 1-7 are shown in table 1;
TABLE 1 internal Defect repair results for alloy ingots obtained in examples 1-5 and comparative examples 1-7
| Repair results | |
| Example 1 | Defect-free inside |
| Example 2 | Defect-free inside |
| Example 3 | Defect-free inside |
| Example 4 | Defect-free inside |
| Example 5 | Defect-free inside |
| Comparative example 1 | With defects in the interior |
| Comparative example 2 | With defects in the interior |
| Comparative example 3 | With defects in the interior |
| Comparative example 4 | With defects in the interior |
| Comparative example 5 | / |
| Comparative example 6 | / |
| Comparative example 7 | With defects in the interior |
Reference is made to fig. 1 and 2 for determining whether a defect is present in the interior of an alloy ingot; FIG. 1 is a photograph of an alloy ingot repaired in example 3, it being apparent from the appearance that the internal defects of the alloy ingot have been repaired; FIG. 2 is a photograph of the alloy ingot obtained in comparative example 2, and it is apparent from the appearance that pits and spots exist on the surface of the alloy ingot, and that the internal defects of the alloy ingot are not completely repaired.
From the results in table 1, it can be seen that:
according to the comparison of the results of the example 3, the comparative example 1 and the comparative example 2, the invention adopts a mode of combining the vibrating die and the surface of the lower die casting ingot under the condition that the alloy ingot is softened to repair the internal defects of the alloy ingot; the vibration die or the lower die casting ingot surface is adopted, so that the generated acting force is insufficient, and the internal defect of the alloy ingot cannot be effectively repaired by applying force to the alloy ingot from one direction; according to the invention, the alloy ingot is subjected to transverse acting force by vibrating the die, and the downward acting force is applied to the alloy ingot by adding the technical means of the surfaces of the lower die casting ingot, so that alloy grains are filled with shrinkage porosity and air holes, and the defects in the alloy ingot are effectively repaired.
As can be seen from comparison of the results of example 3 and comparative example 3, the number of times of pressing down the surface of the ingot is also critical for repairing the internal defects of the alloy ingot, because too small pressing down times may result in incomplete removal of the internal portion of the alloy ingot with larger pores or shrinkage porosity, and thus the resulting alloy ingot still has a small number of defects therein.
As is clear from comparison of the results of example 3 and comparative example 4, the internal defects of the alloy ingot cannot be repaired due to the fact that the internal stress of the ingot is small due to the fact that the pressure applied to the surface of the lower die casting ingot is too small, the degree of displacement of crystal grains is insufficient, and shrinkage porosity and air holes in the alloy ingot are difficult to remove.
The alloy ingot is cracked due to the excessive pressure applied on the surface of the lower die-casting ingot in comparative example 5, and the alloy ingot becomes a remarkable unqualified product.
In the process of pressing down the surface of the cast ingot in comparative example 6, the too low time interval between two adjacent pressing down steps can cause that the elasticity of crystal grains of the alloy cast ingot is not recovered, so that the alloy cast ingot is subjected to dark cracking after multiple pressing down steps, and the phenomenon of cracking is generated during the last pressing down step, thus the alloy cast ingot becomes an obvious unqualified product.
Comparative example 7 the time for the lower die casting ingot surface was too short, and the pressure applied to the alloy ingot was insufficient, so that the defects inside the alloy ingot could not be repaired.
In the present example and comparative example, a cooling rate of less than 15 ℃/min was used to prevent insufficient stress release due to too fast cooling of the alloy ingot, which would lead to cracking during subsequent processing.
The embodiments presented herein are merely implementations selected from combinations of all possible embodiments. The following claims should not be limited to the description of the embodiments of the invention. Some numerical ranges used in the claims include sub-ranges within which variations in these ranges are also intended to be covered by the appended claims.
Claims (5)
1. The alloy ingot defect repairing method is characterized by comprising the following specific steps of:
step 1: placing an alloy cast ingot with shrinkage porosity and/or air holes inside into a casting mold, and heating and softening;
step 2: vibrating a casting die after the alloy ingot is softened, and casting the surface of the ingot;
step 3: cooling, and taking out the alloy cast ingot;
wherein the vibration frequency of the vibration is 35-40kHZ;
the specific operation of the lower die casting ingot surface in the step 2 is as follows: adopting a clean fear head to press downwards on the surface of an ingot for 5 times, wherein the pressing pressure of each time is 200-300 kg, the pressing time is 2-4s, and the time interval between two adjacent pressing times is 10-12s;
the alloy cast ingot is an alloy cast ingot at least containing nickel, chromium, aluminum and yttrium metals.
2. The method for repairing defects of alloy ingots according to claim 1, wherein the cooling rate in the step 3 is less than 15 ℃/min.
3. The method for repairing defects of alloy ingots according to claim 1, wherein the temperature rise in the step 1 is 1500-2000 ℃.
4. The method for repairing defects of an alloy ingot according to claim 1, wherein the casting mold is a graphite mold.
5. An alloy ingot, characterized in that the alloy ingot with defects is repaired by the alloy ingot defect repair method according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310711504.3A CN116833393A (en) | 2023-06-15 | 2023-06-15 | Alloy ingot defect repairing method and alloy ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310711504.3A CN116833393A (en) | 2023-06-15 | 2023-06-15 | Alloy ingot defect repairing method and alloy ingot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116833393A true CN116833393A (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310711504.3A Pending CN116833393A (en) | 2023-06-15 | 2023-06-15 | Alloy ingot defect repairing method and alloy ingot |
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| Country | Link |
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- 2023-06-15 CN CN202310711504.3A patent/CN116833393A/en active Pending
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