CN105479107A - Shaping method of annular forging of Rene41 alloy - Google Patents
Shaping method of annular forging of Rene41 alloy Download PDFInfo
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- CN105479107A CN105479107A CN201510953473.8A CN201510953473A CN105479107A CN 105479107 A CN105479107 A CN 105479107A CN 201510953473 A CN201510953473 A CN 201510953473A CN 105479107 A CN105479107 A CN 105479107A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 48
- 239000000956 alloy Substances 0.000 title claims abstract description 48
- 229910001088 rené 41 Inorganic materials 0.000 title claims abstract description 43
- 238000005242 forging Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000007493 shaping process Methods 0.000 title abstract description 4
- 238000004080 punching Methods 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 65
- 229910052742 iron Inorganic materials 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 24
- 239000000919 ceramic Substances 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 15
- 239000000155 melt Substances 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 abstract description 2
- 239000011265 semifinished product Substances 0.000 abstract 8
- 206010011376 Crepitations Diseases 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/10—Piercing billets
-
- 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
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention relates to a shaping method of an annular forging of a Rene41 alloy. The shaping method comprises the following steps of wrapping the cylinder surface of a semifinished product of the Rene41 alloy with a first blanket, heating the cylinder surface wrapped with the first blanket to 1040-1140 DEG C, then stopping heating, and immediately performing heading and punching treatment on the semifinished product; wrapping the outer surface and the punching inner surface of the treated semifinished product with second blankets respectively, heating the outer surface and the punching inner surface of the semifinished product with the second blankets to 1040-1120 DEG C, then stopping heating, and immediately performing trestle reaming treatment on the semifinished product; and wrapping the outer surface and the reaming inner surface of the treated semifinished product with the second blankets respectively, heating the outer surface and the reaming inner surface of the semifinished product with the second blankets to 1040-1120 DEG C, then stopping heating, and immediately rolling the treated semifinished product so as to obtain finished products. After the method is used for treating the Rene41 alloy, the grain size of the annular forging reaches 6 levels or above, and common crackles are not generated in the surface of the annular forging.
Description
Technical field
A kind of annular forging piece manufacturing process of high temperature alloy, particularly a kind of annular forging piece manufacturing process of Rene41 alloy are the present invention relates to.
Background technology
Rene41 is precipitation hardenable ni-base wrought superalloy, within the scope of 650-900 DEG C, there is high stretching and durable creeping intensity and good non-oxidizability, be suitable for being manufactured on less than 870 DEG C require high strength and less than 980 DEG C require oxidation resistant Aeronautics and Astronautics engine high-temperature parts.Because Aluminum in Alloy, titanium, content are higher, the plasticity of alloy is poor, is easy to crackle in forging process, and crackle is easily expanded.In forging process, often meeting cause product rejection because of face crack, or surplus (increasing material to drop into) guarantee removal face crack is more forged in increase.
Rene41 alloy is coarse-grain type alloy, is easy to produce coarse grain in forging process, causes grain size uneven, thus affects the service life of part.
Process Rene41 alloy by the method that existing annular forging piece is shaped and there is following shortcoming:
1, Rene41 alloy easily ftractures in forging process, needs more allowance to ensure to remove face crack, causes product rejection time serious;
2, in order to ensure that product surface quality need use relatively high rolling ring temperature, cause the grain size after product shaping easily defective;
3, forging this product be high to the layout requirements of forging equipment and heating furnace.
Summary of the invention
The goal of the invention of the application is: the annular forging piece manufacturing process providing a kind of Rene41 alloy, after processing with the annular forging piece of the method to Rene41 alloy, the annular forging piece grain size of Rene41 alloy is reached for 6 grades or thinner, and its surface does not have common crackle.
In order to complete the goal of the invention of the application, the application by the following technical solutions:
The annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention processes the blank of the Rene41 alloy of column type, wherein:
(I) be 10mm-15mm ceramic fibre and high-temperature agglomerant powder constituent first blanket spreading 1-2mm thickness thereon equably by thickness, the melt temperature of high-temperature agglomerant powder is between 850-900 DEG C, above-mentioned first blanket is wrapped the periphery of the blank of Rene41 alloy, make to fit tightly sprinkled with the first blanket of high-temperature agglomerant powder and the periphery of above-mentioned blank, and the periphery of the first blanket and above-mentioned blank is fixed together, heating is stopped after again they being heated to 1040-1140 DEG C, immediately the thick and punching process of pier is carried out to above-mentioned blank, the diameter of punching must not be greater than 1/3 of the thick rear external diameter of above-mentioned blank pier, after process terminates, above-mentioned blank is allowed to naturally cool to room temperature, the first blanket be rolled on above-mentioned blank comes off naturally,
(II) at thickness be 1mm-1.5mm iron sheet on to place thickness be 10mm-15mm ceramic fibre, ceramic fibre sprinkles the high-temperature agglomerant powder of 1-2mm thickness equably, form the second blanket thus, the melt temperature of high-temperature agglomerant powder is between 850-900 DEG C, above-mentioned second blanket is wrapped respectively the blank outer surface and punching inner surface that processed by step (I), the second blanket sprinkled with high-temperature agglomerant powder is fitted tightly with the outer surface of above-mentioned blank and punching inner surface respectively, and the second blanket is separately fixed on blank outer surface and punching inner surface, heating is stopped after again they being heated to 1040-1120 DEG C, immediately saddle support expanding treatment is carried out to above-mentioned blank, after process terminates, above-mentioned blank is allowed to naturally cool to room temperature, the second blanket be rolled on above-mentioned blank comes off naturally,
(III) above-mentioned second blanket is wrapped respectively the blank outer surface processed by step (II) and reaming inner surface, the second blanket sprinkled with high-temperature agglomerant powder is fitted tightly with the outer surface of above-mentioned blank and reaming inner surface respectively, and the second blanket is separately fixed on blank outer surface and reaming inner surface, heating is stopped after again they being heated to 1040-1120 DEG C, immediately above-mentioned blank is rolled into final products, after process terminates, allow above-mentioned blank naturally cool to room temperature, the second blanket be rolled on above-mentioned blank comes off naturally.
The annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention wherein: in step (I), is that the first blanket and blank are fixed together by the iron wire of 1-3mm with diameter.
The annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention, wherein: in step (I), bands together the first blanket and blank with the iron wire that two diameters are 1-3mm.
The annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention, wherein: in step (II) and step (III), second blanket after wrapping blank outer surface and punching or reaming inner surface, is fixed on blank respectively by spot welding in the iron sheet joint of two overlap edges of the second blanket by the second blanket respectively that be rolled in blank outer surface and punching or reaming inner surface.
The annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention, wherein: on upper and lower two end faces of blank, be that the iron straps of 40-60mm will be rolled in the second blanket of blank outer surface and link together at the second blanket wrapping blank punching or reaming inner surface with three width, one end and the iron sheet be rolled on the second blanket of blank outer surface of iron straps weld together, and the other end and the iron sheet be rolled on the second blanket of blank punching or reaming inner surface of iron straps weld together.
The annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention, wherein: described high-temperature agglomerant powder is the AL containing 10-14%
2o
3, containing the SiO of 45-52%
2, the CaO containing 12-16%, the Na containing 4-8%
2o and the B containing 15-22%
2o
3.
The annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention, wherein: described Rene41 alloy is that C content is at 0.06-0.12%, 0.50% is not more than containing Mn amount, si content is not more than 0.50%, P content is not more than 0.015%, 0.01% is not more than containing S amount, containing Cr amount at 18.0-20.0%, 9.0-10.50% is measured containing Mo, 3.00-3.50% is measured containing Ti, 1.40-1.80% is measured containing Al, containing Co amount at 10.0-12.0%, 5.00% is not more than containing Fe amount, 0.07% is not more than containing Zr amount, containing B amount at 0.003-0.010%, 0.5% is not more than containing Cu amount, all the other are the high temperature alloy of ni content, mentioned component sum is 100%.
The annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention, wherein: described heating is carried out in electric furnace.
The annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention, wherein: described ceramic fibre contains the AL of 44%
2o
3, SiO containing 52%
2, Fe containing 1%
2o
3, all the other are ZrO
2ceramic fibre.
Compared with existing processing method, the annular forging piece of the identical Rene41 alloy after processing by the method for the application, its annular forging piece grain size is reached for 6 grades or thinner, and surface does not have common crackle.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the annular forging piece manufacturing process of a kind of Rene41 alloy of the present invention;
Fig. 2 is the schematic perspective view of the blank using iron sheet and iron straps parcel.
In fig. 1 and 2, label 1 is blank; Label 2 is the first blanket; Label 3 is the second blanket; Label 4 is iron straps.
Detailed description of the invention
The chemical composition of Rene41 alloy is as follows:
As shown in Figure 1, the annular forging piece manufacturing process of Rene41 alloy of the present invention, be process the blank of the Rene41 alloy of column type, it comprises the following steps:
(I) as shown in (a) in Fig. 1 to (c), be 10mm-15mm ceramic fibre and high-temperature agglomerant powder constituent first blanket 2 spreading 1-2mm thickness thereon equably by thickness, the melt temperature of high-temperature agglomerant powder is between 850-900 DEG C, above-mentioned first blanket 2 is wrapped the periphery of the blank 1 of Rene41 alloy, the first blanket 2 sprinkled with high-temperature agglomerant powder is fitted tightly with the periphery of above-mentioned blank 1, and the first blanket 2 is fixed together with the periphery of above-mentioned blank 1, heating is stopped after again they being heated to 1040-1140 DEG C, immediately the thick and punching process of pier is carried out to above-mentioned blank 1, the diameter of punching must not be greater than 1/3 of the thick rear external diameter of above-mentioned blank 1 pier, after process terminates, above-mentioned blank 1 is allowed to naturally cool to room temperature, the first blanket 2 be rolled on above-mentioned blank 1 comes off naturally,
(II) as shown in (d) in Fig. 1 to (e), at thickness be 1mm-1.5mm iron sheet on to place thickness be 10mm-15mm ceramic fibre, ceramic fibre sprinkles the high-temperature agglomerant powder of 1-2mm thickness equably, form the second blanket 3 thus, the melt temperature of high-temperature agglomerant powder is between 850-900 DEG C, above-mentioned second blanket 3 is wrapped respectively the blank outer surface and punching inner surface that processed by step (I), the second blanket 3 sprinkled with high-temperature agglomerant powder is fitted tightly with the outer surface of above-mentioned blank 1 and punching inner surface respectively, and the second blanket 3 is separately fixed on blank 1 outer surface and punching inner surface, heating is stopped after again they being heated to 1040-1120 DEG C, immediately saddle support expanding treatment is carried out to above-mentioned blank 1, after process terminates, above-mentioned blank 1 is allowed to naturally cool to room temperature, the second blanket 3 be rolled on above-mentioned blank 1 comes off naturally,
(III) as shown in (f) in Fig. 1 to (g), above-mentioned second blanket 3 is wrapped respectively the blank outer surface and reaming inner surface that processed by step (II), the second blanket 3 sprinkled with high-temperature agglomerant powder is fitted tightly with the outer surface of above-mentioned blank 1 and reaming inner surface respectively, and the second blanket 3 is separately fixed on blank 1 outer surface and reaming inner surface, heating is stopped after again they being heated to 1040-1120 DEG C, immediately above-mentioned blank 1 is rolled into final products, after process terminates, above-mentioned blank 1 is allowed to naturally cool to room temperature, the second blanket 3 be rolled on above-mentioned blank 1 comes off naturally.
In step (I), be that the first blanket 2 is fixed together with blank 1 by the iron wire of 1-3mm with diameter; Or be that the first blanket 2 and blank 1 band together by the iron wire of 1-3mm with two diameters.
In step (II) and step (III), second blanket 3, after wrapping blank 1 outer surface and punching or reaming inner surface respectively, is fixed on blank 1 respectively by spot welding in the iron sheet joint of two overlap edges of the second blanket 3 by the second blanket 2 being rolled in blank 1 outer surface and punching or reaming inner surface.If necessary, on upper and lower two end faces of blank 1, be that the iron straps 4 of 40-60mm will be rolled in the second blanket 2 of blank 1 outer surface and link together at the second blanket 2 wrapping blank 1 punching or reaming inner surface with three width, one end and the iron sheet be rolled on the second blanket 2 of blank 1 outer surface of iron straps 4 weld together, and the other end and the iron sheet be rolled on the second blanket 2 of blank 1 punching or reaming inner surface of iron straps 4 weld together.
High-temperature agglomerant powder is the AL containing 10-14%
2o
3, containing the SiO of 45-52%
2, the CaO containing 12-16%, the Na containing 4-8%
2o and the B containing 15-22%
2o
3.Ceramic fibre is the AL containing 44%
2o
3, SiO containing 52%
2, Fe containing 1%
2o
3, all the other are ZrO
2ceramic fibre.Heating is carried out in electric furnace.
Use forging face crack contrast before and after the present invention:
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each part not clear and definite in the present embodiment is realized.
Claims (9)
1. an annular forging piece manufacturing process for Rene41 alloy, is process the blank of the Rene41 alloy of column type, it is characterized in that:
(I) be 10mm-15mm ceramic fibre and high-temperature agglomerant powder constituent first blanket (2) spreading 1-2mm thickness thereon equably by thickness, the melt temperature of high-temperature agglomerant powder is between 850-900 DEG C, above-mentioned first blanket (2) is wrapped the periphery of the blank (1) of Rene41 alloy, make to fit tightly sprinkled with first blanket (2) of high-temperature agglomerant powder and the periphery of above-mentioned blank (1), and the periphery of the first blanket (2) with above-mentioned blank (1) is fixed together, heating is stopped after again they being heated to 1040-1140 DEG C, immediately the thick and punching process of pier is carried out to above-mentioned blank (1), the diameter of punching must not be greater than 1/3 of the thick rear external diameter of above-mentioned blank (1) pier, after process terminates, above-mentioned blank (1) is allowed to naturally cool to room temperature, the first blanket (2) be rolled on above-mentioned blank (1) comes off naturally,
(II) at thickness be 1mm-1.5mm iron sheet on to place thickness be 10mm-15mm ceramic fibre, ceramic fibre sprinkles the high-temperature agglomerant powder of 1-2mm thickness equably, form the second blanket (3) thus, the melt temperature of high-temperature agglomerant powder is between 850-900 DEG C, above-mentioned second blanket (3) is wrapped respectively the blank outer surface and punching inner surface that processed by step (I), the second blanket (3) sprinkled with high-temperature agglomerant powder is fitted tightly with the outer surface of above-mentioned blank (1) and punching inner surface respectively, and the second blanket (3) is separately fixed on blank (1) outer surface and punching inner surface, heating is stopped after again they being heated to 1040-1120 DEG C, immediately saddle support expanding treatment is carried out to above-mentioned blank (1), after process terminates, above-mentioned blank (1) is allowed to naturally cool to room temperature, the second blanket (3) be rolled on above-mentioned blank (1) comes off naturally,
(III) above-mentioned second blanket (3) is wrapped respectively the blank outer surface processed by step (II) and reaming inner surface, the second blanket (3) sprinkled with high-temperature agglomerant powder is fitted tightly with the outer surface of above-mentioned blank (1) and reaming inner surface respectively, and the second blanket (3) is separately fixed on blank (1) outer surface and reaming inner surface, heating is stopped after again they being heated to 1040-1120 DEG C, immediately above-mentioned blank (1) is rolled into final products, after process terminates, above-mentioned blank (1) is allowed to naturally cool to room temperature, the second blanket (3) be rolled on above-mentioned blank (1) comes off naturally.
2. the annular forging piece manufacturing process of Rene41 alloy as claimed in claim 1, is characterized in that: in step (I), is that the first blanket (2) and blank (1) are fixed together by the iron wire of 1-3mm with diameter.
3. the annular forging piece manufacturing process of Rene41 alloy as claimed in claim 2, is characterized in that: in step (I), is that the first blanket (2) and blank (1) band together by the iron wire of 1-3mm with two diameters.
4. the annular forging piece manufacturing process of Rene41 alloy as claimed in claim 1, it is characterized in that: in step (II) and step (III), second blanket (3), after wrapping blank (1) outer surface and punching or reaming inner surface respectively, is fixed on blank (1) respectively by spot welding in the iron sheet joint of two overlap edges of the second blanket (3) by the second blanket (2) being rolled in blank (1) outer surface and punching or reaming inner surface.
5. the annular forging piece manufacturing process of Rene41 alloy as claimed in claim 4, it is characterized in that: upper at blank (1), on lower two end faces, second blanket (2) of blank (1) outer surface will be rolled in the iron straps (4) that three width are 40-60mm and link together at the second blanket (2) wrapping blank (1) punching or reaming inner surface, one end and the iron sheet be rolled on second blanket (2) of blank (1) outer surface of iron straps (4) weld together, the other end and the iron sheet be rolled on second blanket (2) of blank (1) punching or reaming inner surface of iron straps (4) weld together.
6. the annular forging piece manufacturing process of Rene41 alloy as claimed in claim 1, is characterized in that: described high-temperature agglomerant powder is the AL containing 10-14%
2o
3, containing the SiO of 45-52%
2, the CaO containing 12-16%, the Na containing 4-8%
2o and the B containing 15-22%
2o
3.
7. the annular forging piece manufacturing process of Rene41 alloy as claimed in claim 1, it is characterized in that: described Rene41 alloy is that C content is at 0.06-0.12%, 0.50% is not more than containing Mn amount, si content is not more than 0.50%, P content is not more than 0.015%, 0.01% is not more than containing S amount, containing Cr amount at 18.0-20.0%, 9.0-10.50% is measured containing Mo, 3.00-3.50% is measured containing Ti, 1.40-1.80% is measured containing Al, containing Co amount at 10.0-12.0%, 5.00% is not more than containing Fe amount, 0.07% is not more than containing Zr amount, containing B amount at 0.003-0.010%, 0.5% is not more than containing Cu amount, all the other are the high temperature alloy of ni content, mentioned component sum is 100%.
8. the annular forging piece manufacturing process of Rene41 alloy as claimed in claim 1, is characterized in that: described heating is carried out in electric furnace.
9. the annular forging piece manufacturing process of Rene41 alloy as claimed in claim 1, is characterized in that: described ceramic fibre is the AL containing 44%
2o
3, SiO containing 52%
2, Fe containing 1%
2o
3, all the other are ZrO
2ceramic fibre.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676331A (en) * | 2016-12-22 | 2017-05-17 | 钢铁研究总院 | High-temperature-resistant high-elastic nickel-chromium alloy strip and preparation method thereof |
| CN107138538A (en) * | 2017-06-16 | 2017-09-08 | 奥科宁克航空机件(苏州)有限公司 | Forging method for refining grain size of high-temperature alloy annular forging |
| CN111534771A (en) * | 2020-06-12 | 2020-08-14 | 无锡派克新材料科技股份有限公司 | Method for homogenizing nickel-based superalloy crystal grains |
| CN116900649A (en) * | 2023-09-11 | 2023-10-20 | 陕西长羽航空装备股份有限公司 | Ring piece forming method of aero-engine difficult-to-deform material |
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