CN111496161A - Preparation method of high-temperature alloy bar - Google Patents
Preparation method of high-temperature alloy bar Download PDFInfo
- Publication number
- CN111496161A CN111496161A CN202010341718.2A CN202010341718A CN111496161A CN 111496161 A CN111496161 A CN 111496161A CN 202010341718 A CN202010341718 A CN 202010341718A CN 111496161 A CN111496161 A CN 111496161A
- Authority
- CN
- China
- Prior art keywords
- forging
- deformation
- heating
- temperature
- blank
- 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
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
Abstract
A preparation method of a high-temperature alloy bar comprises heating and forging, wherein the heating adopts a low-high-low temperature heating method, the forging adopts a reversing upsetting-drawing forging method, a raw material ingot is subjected to high-temperature homogenization, the prepared GH 4720L i high-temperature alloy bar is 200-300 mm in specification, the low-order structure of the bar is uniform, the grain size reaches 6-8 levels, and meanwhile, the performance of the large-size bar subjected to heat treatment can meet corresponding standard requirements.
Description
Technical Field
The invention belongs to the technical field of nonferrous metal processing, and particularly relates to a preparation method of a high-temperature alloy bar.
Background
The GH 4720L i alloy is a Ni-based precipitation hardening type deformation high-temperature alloy, the use temperature is 650-750 ℃, the alloy has high tensile strength and lasting strength, good plasticity and comprehensive performance, and stable structure after long-term use at high temperature, and the alloy is suitable for being used as parts of turbine discs, blades, compressor discs and the like of aeroengines, and can also be used as integral turbine rotors of new-generation strategic missiles and high-thrust rocket engines, turbine discs of ground gas turbines and the like.
GH 4720L i has high alloying degree and strengthened phase gamma' -Ni3The quantity of (Al and Ti) is as high as 40-50%, which is one of the most difficult-to-deform high-temperature alloys internationally, and the international method for preparing the GH 4720L i alloy large-size bar is radial forging and extrusion forming, the method is high in cost and low in efficiency, is limited by equipment capacity domestically, and is formed by rapid forging, so that the deformation resistance is high, the cracking is easy, and a mixed crystal structure is easy to generate in the processing process.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a preparation method of a high-temperature alloy bar, which solves the technical problems that in the prior art, a radial forging and extrusion forming method is adopted to prepare a GH 4720L i alloy large-size bar, the preparation cost is high, the efficiency is low, the bar is limited by equipment capacity in China, only quick forging forming can be used, the deformation resistance is large, the bar is easy to crack and a mixed crystal structure is easy to generate, the structural uniformity of the bar is improved by reasonably setting the forging fire number, effectively matching the heating method, optimizing the deformation mode and the deformation amount and strictly controlling the finish forging temperature, the flaw detection level of the bar with the diameter of 200-300 mm large size can reach more than 0.8-12dB, the macrostructure is uniform, the grain size reaches 6-8 grades, the performance of the heat-treated large-size bar can meet the corresponding standard requirements, and the bar has wide applicability in the field of GH47 4720L i alloy preparation.
The preparation method of the high-temperature alloy bar comprises heating and forging, wherein the heating adopts a low-high-low temperature heating method, the forging adopts a reversing upsetting-drawing forging method, and the used raw material ingot is homogenized at high temperature.
In order to achieve the purpose, the invention adopts the technical scheme that: a preparation method of a high-temperature alloy bar comprises the following steps:
step 1, cogging forging heating temperature is 1130-1150 ℃, cogging forging is carried out for the 1 st heating, ingot casting is subjected to homogenization heat treatment before cogging forging, axial upsetting and drawing deformation are carried out on a 4500T quick forging machine, the deformation of upsetting and drawing is 10-30%, the deformation of each pass is not more than 20%, and the surface temperature of the blank after forging is more than 900 ℃;
step 2, the heating temperature of the 2 nd heating is 1150-1180 ℃, reversing upsetting and drawing deformation is carried out on a 4500T quick forging machine, the deformation of upsetting and drawing is 20-40%, the deformation of each pass is not less than 20%, and the surface temperature of the blank after forging is more than 900 ℃;
step 3, heating the blank at the 3 rd to 5 th heating temperature of 1120 to 1150 ℃, performing reversing upsetting-drawing deformation on a 4500T quick forging machine, wherein the deformation of upsetting and drawing at each time is 25 to 45 percent, the deformation at each time is not less than 30 percent, and the surface temperature of the blank after forging is more than 900 ℃;
step 4, drawing out the blank on a 4500T rapid forging machine at the 6 th heating temperature of 1100-1140 ℃, wherein the deformation amount of each heating time is controlled to be 20-40%, the deformation amount of each heating time is not less than 20%, and the surface temperature of the blank after forging is higher than 850 ℃;
and 5, chamfering and rounding the 7 th heating temperature at 1080-1140 ℃ on a 4500T rapid forging machine, wherein the deformation of each heating time in the step is 10-30%, the deformation of each heating time is not more than 20%, rapid high-frequency forging is required, and the surface temperature of the forged blank is more than 850 ℃.
In the step 1, the heating temperature is 1135-1145 ℃, the heat preservation is carried out for 4-6 hours, the deformation of each pass is not more than 15%, and the surface temperature of the forged blank is more than 900 ℃ and less than 1000 ℃.
In the step 2, the heating temperature is 1150-1175 ℃, the heating and heat preservation are carried out for 3-5 hours, the forging of upsetting and drawing out are carried out alternately in the axial direction and the radial direction of the blank, the deformation of upsetting and drawing out is 30-40%, the deformation of each pass is 20-40%, and the surface temperature of the blank after the forging is larger than 900 ℃ and smaller than 1100 ℃.
And 3, heating and preserving heat for 2-5 hours in the step 3, and carrying out reversing upsetting-drawing deformation on a 4500T quick forging machine, wherein the deformation amount is controlled to be 30-40%, the deformation amount of each pass is 30-40%, and the surface temperature of the blank after forging is greater than 900 ℃ and less than 1100 ℃.
In the step 4, the heating temperature is 1100-1135 ℃, the heating and heat preservation are carried out for 2-3 hours, the drawing is carried out on a 4500T quick forging machine, the deformation of each pass is 20-25%, and the surface temperature of the blank after the forging is more than 850 ℃ and less than 900 ℃.
In the step 5, the heating temperature is 1100 +/-10 ℃, the heating and heat preservation are carried out for 2-3 hours, chamfering and rounding are carried out on a 4500T quick forging machine, the deformation of each pass is 15-20%, when rounding forging is carried out, quick high-frequency forging is required, and the surface temperature of the forged blank is more than 850 ℃ and less than 900 ℃.
And (4) after air cooling is finished in the steps 1-3, polishing and removing flaws, and after the forging is finished in the step 4, returning to the furnace for temperature compensation, and performing next-fire forging.
And in the step 5, chamfering and rounding are carried out on a 4500T quick forging machine at the 7 th firing time, the deformation amount of the chamfering firing time is 15-25%, the blank is returned to a furnace for temperature compensation after chamfering and is subjected to rounding forging, the surface temperature of the blank is greater than 850 ℃ after forging, the rounding deformation amount is 10-20%, and the rolling reduction per hammer is controlled.
The GH 4720L i high-temperature alloy bar prepared by the preparation method of the high-temperature alloy bar has the specification of phi 200-300 mm, the flaw detection level reaches over phi 0.8-12dB, the low-order structure of the bar is uniform, and the grain size reaches 6-8 levels.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the preparation method of the high-temperature alloy bar, the forging method for producing the GH 4720L i high-temperature alloy bar with the specification of phi 200-300 mm by using the rapid forging machine improves the structural uniformity of the bar by reasonably setting the forging heat number, effectively matching the heating method, optimizing the deformation mode and deformation amount and strictly controlling the finish forging temperature, so that the flaw detection level of the bar reaches above phi 0.8-12dB, the anisotropy of the bar is reduced, and various performance requirements and structural uniformity requirements of the GH 20 4720L i high-temperature alloy bar are successfully broken through.
Drawings
FIG. 1 is a schematic low-magnification (transverse) view of GH 4720L i bar material with diameter of 220 mm.
FIG. 2 is a schematic diagram of the high-power (longitudinal) structure of the edge of GH 4720L i bar with the diameter of 220 mm.
FIG. 3 is a schematic diagram of the phi 220mm specification GH 4720L i bar 1/2R high power structure (longitudinal direction) of the invention.
FIG. 4 is a schematic diagram of the high power structure (longitudinal direction) of the core of GH 4720L i bar material with diameter of 220 mm.
FIG. 5 is a schematic low-magnification (transverse) view of GH 4720L i bar material with a diameter of 260 mm.
FIG. 6 is a schematic diagram of the high-power (longitudinal) structure of the edge of GH 4720L i bar material with the diameter of 260 mm.
FIG. 7 is a schematic diagram of the phi 260mm specification GH 4720L i bar 1/2R high power structure (longitudinal direction) of the invention.
FIG. 8 is a schematic diagram of the high power structure (longitudinal direction) of the core of GH 4720L i bar material with the specification of phi 260 mm.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
The preparation method of the high-temperature alloy bar comprises heating and forging, wherein the heating adopts a low-high-low temperature heating method, the forging adopts a reversing upsetting-drawing forging method, and the used raw material ingot is homogenized at high temperature. The method specifically comprises the following steps:
step 1, cogging forging heating temperature is 1130-1150 ℃, cogging forging is carried out for the 1 st heating, ingot casting is subjected to homogenization heat treatment before cogging forging, axial upsetting and drawing deformation are carried out on a 4500T quick forging machine, the deformation of upsetting and drawing is 10-30%, the deformation of each pass is not more than 20%, and the surface temperature of the blank after forging is more than 900 ℃;
step 2, the heating temperature of the 2 nd heating is 1150-1180 ℃, reversing upsetting and drawing deformation is carried out on a 4500T quick forging machine, the deformation of upsetting and drawing is 20-40%, the deformation of each pass is not less than 20%, and the surface temperature of the blank after forging is more than 900 ℃;
step 3, heating the blank at the 3 rd to 5 th heating temperature of 1120 to 1150 ℃, performing reversing upsetting-drawing deformation on a 4500T quick forging machine, wherein the deformation of upsetting and drawing at each time is 25 to 45 percent, the deformation at each time is not less than 30 percent, and the surface temperature of the blank after forging is more than 900 ℃;
step 4, drawing out the blank on a 4500T rapid forging machine at the 6 th heating temperature of 1100-1140 ℃, wherein the deformation amount of each heating time is controlled to be 20-40%, the deformation amount of each heating time is not less than 20%, and the surface temperature of the blank after forging is higher than 850 ℃;
and 5, chamfering and rounding the 7 th heating temperature at 1080-1140 ℃ on a 4500T rapid forging machine, wherein the deformation of each heating time in the step is 10-30%, the deformation of each heating time is not more than 20%, rapid high-frequency forging is required, and the surface temperature of the forged blank is more than 850 ℃.
The first embodiment is as follows:
the preparation method of the high-temperature alloy bar comprises the following steps:
step 1, cogging forging heating temperature is 1130 ℃, homogenizing heat treatment is completed before cogging forging, a 4500T fast forging machine is used for cogging forging the ingot with the phi of 490mm, upsetting and drawing are carried out for 1 fire time to obtain a octagonal 430 ×L square billet, the deformation mode is two-upsetting and two-drawing, the deformation amount of upsetting and drawing is 10%, the surface temperature of the forged billet is 901 ℃, air cooling is carried out after forging, and grinding and cleaning are carried out.
2, reversing, upsetting and deforming the octagonal 430 ×L square billet on a 4500T quick forging machine to the octagonal 510 ×L square billet at the heating temperature of 1150 ℃ in a mode of two-upsetting and two-pulling, wherein the deformation amount of upsetting and stretching is 20%, the surface temperature of the billet after forging is 920 ℃, air cooling is performed after forging, and polishing and cleaning are performed;
3, reversing, upsetting and deforming the eight-square 510 ×L-specification square billet on a 4500T quick forging machine for 3-5 times to obtain an eight-square 400-400 ×L-specification square billet, heating the square billet to 1120 ℃, deforming the square billet in a six-upsetting and six-drawing mode, wherein the deformation amount of upsetting and drawing is 25%, the surface temperature of the forged billet is 916 ℃, air cooling is performed after forging, and grinding and cleaning are performed.
Step 4, drawing out the eight-square 400 ×L-specification square billet to an eight-square 320-320 ×L-specification square billet in a 4500T fast forging machine at the 6 th fire time, wherein the heating temperature is 1100 ℃, the deformation amount of each fire time is 20%, the surface temperature of the billet after the forging is finished is 874 ℃, the tempering and temperature compensation are carried out after the forging is finished, and the next fire forging is carried out;
and 5, chamfering and rounding the octagonal 320 ×L square billet on a 4500T fast forging machine at the 7 th firing time, wherein the heating temperature is 1080, the deformation of the chamfering firing time is 15%, returning to a furnace after chamfering and supplementing temperature for rounding forging, the surface temperature of the forged billet is 856 ℃, the deformation of the rounded billet is 10%, the reduction per hammer is controlled, and the specification of the finished product is a bar with the diameter of 220 mm.
Example two:
the preparation method of the high-temperature alloy bar comprises the following steps:
step 1, cogging: the specification of the cogging ingot is phi 508mm, the heating temperature of the cogging forging is 1140 ℃, the temperature is kept for 4-6 hours, and the homogenization heat treatment of the ingot is completed before the cogging forging. Carrying out two-upsetting and two-drawing on the cast ingot, controlling the cogging heat number deformation at 20%, controlling the surface temperature of the blank after forging to be 961 ℃, cooling after forging, polishing and removing damage;
step 2, intermediate forging: heating and preserving heat at 1165 ℃ for 3-5 hours, performing two-upsetting and two-drawing forging, controlling the deformation amount at each fire time to be 30%, controlling the deformation amount at each pass to be not less than 20%, and controlling the surface temperature of the blank to 955 ℃ after the forging is finished;
and step 3: heating and preserving heat at 1140 ℃ for 3-5 hours, performing two-upsetting and two-drawing forging, wherein the deformation amount of each heating is controlled to be 35%, and the deformation amount of each pass is not less than 30%; heating and preserving heat for 2-4 hours at 1130 ℃, performing two-upsetting and two-drawing forging, wherein the deformation amount of each heating is controlled to be 35%, and the deformation amount of each pass is not less than 30%; heating and preserving heat for 2-3 hours at 1120 ℃, performing two-upsetting and two-drawing forging, controlling the deformation amount at 35% per pass, controlling the deformation amount at not less than 30% per pass, allowing to be re-melted and heat-supplemented after each fire forging is finished, and then performing next fire forging; the surface temperature of the blank after forging is 927 ℃;
and 4, step 4: forming and forging: heating and preserving heat at 1140 ℃ for 2-3 hours, performing two-upsetting and two-drawing forging, controlling the deformation amount at 30% per pass, controlling the deformation amount at not less than 20% per pass, and controlling the surface temperature of the blank to be 863 ℃ after forging;
step 5, heating the blank at 1100 +/-10 ℃, chamfering and forging the blank into a round shape, controlling the deformation amount of chamfering forging within 30%, returning to a furnace for supplementing temperature after forging, forging into a round shape, controlling the deformation amount of forging into a round shape to be below 20%, controlling the surface temperature of the blank to be 859 ℃ after forging, gradually reducing the reduction amount in the forming process, and controlling the finished size of the bar to be phi 260 mm; air cooling is adopted after forging.
Example three:
the preparation method of the high-temperature alloy bar comprises the following steps:
in the step 1, the heating temperature of the 1 st fire is 1150 ℃, the deformation of upsetting and drawing is 30%, the deformation of each pass is not more than 15%, and the surface temperature of the blank after forging is 970 ℃.
In the step 2, the heating temperature of the 2 nd heating is 1180 ℃, the forging of upsetting and stretching is carried out alternately in the axial direction and the radial direction of the blank, the deformation of upsetting and stretching is 40 percent, the deformation of each pass is 30 percent, and the surface temperature of the blank is 999 ℃ after the forging is finished.
In the step 3, the heating temperature of the 3 rd to 5 th heating times is 1150 ℃, reversing upsetting-drawing deformation is carried out on a 4500T quick forging machine, the deformation amount is controlled to be 45 percent, the deformation amount of each pass is 40 percent, and the surface temperature of the blank after forging is 960 ℃;
in the step 4, the 6 th heating temperature is 1120 ℃, drawing is carried out on a 4500T rapid forging machine, the deformation of each pass is 40%, and the surface temperature of the blank after forging is 862 ℃;
in the step 5, the heating temperature of the 7 th fire is 1110 ℃, chamfering and rounding are carried out on a 4500T rapid forging machine, the deformation amount of each fire is 30 percent, and the deformation amount of each pass is 20 percent. When the forging is performed, the rapid high-frequency forging is required, and the surface temperature of the forged blank is more than 850 ℃ and less than 900 ℃.
Example four:
the preparation method of the high-temperature alloy bar comprises the following steps:
in the step 1, the heating temperature of the 1 st fire is 1150 ℃, the deformation of upsetting and drawing is 10-30%, the deformation of each pass is not more than 15%, the surface temperature of the blank after forging is more than 900 ℃ and less than 1000 ℃, the blank is cooled in air after forging, and the blank is polished and cleaned.
In the step 2, the heating temperature of the 2 nd heating is 1160 ℃, upsetting and drawing-out forging are carried out alternately in the axial direction and the radial direction of the blank, the deformation of upsetting and drawing-out is 30-40%, the deformation of each pass is 20-40%, the surface temperature of the blank after forging is larger than 900 ℃ and smaller than 1100 ℃, air cooling is carried out after forging, and grinding and cleaning are carried out.
In the step 3, the heating temperature of the 3 rd to 5 th times is 1135 ℃, reversing upsetting-drawing deformation is carried out on a 4500T quick forging machine, the deformation amount is controlled to be 30-40%, the deformation amount of each pass is 30-40%, the surface temperature of the blank after forging is larger than 900 ℃ and smaller than 1100 ℃, air cooling is carried out after forging, and grinding and cleaning are carried out.
In the step 4, the 6 th heating temperature is 1110 ℃, drawing is carried out on a 4500T quick forging machine, the deformation of each pass is 20-25%, the surface temperature of the blank after forging is more than 850 ℃ and less than 900 ℃, the temperature is restored to the furnace and compensated, and the next fire forging is carried out.
And 5, chamfering and rounding on a 4500T fast forging machine at the 7 th firing time, wherein the heating temperature is 1100 ℃, the deformation amount of the chamfering firing time is 15-25%, returning to a furnace for temperature compensation after chamfering and rounding forging are carried out, the surface temperature of the blank after forging is more than 850 ℃, the rounding deformation amount is 10-20%, and the rolling reduction per hammer is controlled.
Example five:
the preparation method of the high-temperature alloy bar comprises the following steps:
in the step 1, the heating temperature of the 1 st heating is 1135-1145 ℃, the heat preservation is carried out for 4-6 hours, the deformation of upsetting and drawing is 10% -30%, the deformation of each pass is not more than 15%, and the surface temperature of the blank after forging is 900-1000 ℃.
In the step 2, the heating temperature of the 2 nd heating is 1150-1175 ℃, the heating and heat preservation are carried out for 3-5 hours, the forging of upsetting and drawing out are carried out alternately in the axial direction and the radial direction of the blank, the deformation of upsetting and drawing out is 30-40%, the deformation of each pass is 20-40%, and the surface temperature of the blank after the forging is finished is more than 900 ℃ and less than 1100 ℃.
In the step 3, the heating temperature of the 3 rd to 5 th heating times is 1125 to 1150 ℃, the heat preservation is carried out for 2 to 5 hours, the reversing upsetting-drawing deformation is carried out on a 4500T quick forging machine, the deformation is controlled to be 30 to 40 percent, the deformation of each pass is 30 to 40 percent, and the surface temperature of the blank after the forging is more than 900 ℃ and less than 1100 ℃.
In the step 4, the 6 th heating temperature is 1100-1115 ℃, the heating and heat preservation are carried out for 2-3 hours, drawing-out is carried out on a 4500T quick forging machine, the deformation of each pass is 20-25%, and the surface temperature of the blank after forging is larger than 850 ℃ and smaller than 900 ℃.
And (5) heating the blank at 1100 +/-10 ℃, chamfering and forging the blank, controlling the chamfering forging deformation amount to be within 30%, returning to a furnace after forging for temperature compensation, performing forging, controlling the forging deformation amount to be below 20%, and gradually reducing the pressing amount in the forming process.
EXAMPLE VI Performance testing of GH 4720L i superalloy ingots produced by the method of the present invention
The mechanical property data of 2 batches of GH 4720L i high-temperature alloy bars with specifications of phi 220mm and phi 260mm produced by adopting the method of the invention for multi-batch production are shown in Table 1.
As can be seen from table 1, the room-drawn and high-drawn films have more plastic margins, and the strength margins need to be improved; the margin of the 680 ℃ lasting time is higher, and the margin of the elongation rate is to be improved; the margin of the endurance performance at 730 ℃ is higher.
As can be seen from the results in Table 1 and FIGS. 1 to 8, the GH 4720L i high-temperature alloy large-size bar produced by the forging process technology of the invention has uniform structure, uniform and fuzzy transverse low-power bar, no metallurgical defects such as shrinkage cavity, cracks, slag inclusion and the like, relatively uniform and fine longitudinal high-power structures at different parts, average grain size of 6-8 grades, and performance test results completely meet the standard requirements.
In summary, the present invention can be better realized, and the above-mentioned embodiments only describe the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the present invention.
Claims (8)
1. The preparation method of the high-temperature alloy bar is characterized by comprising the following steps of:
step 1, cogging forging heating temperature is 1130-1150 ℃, cogging forging is carried out for the 1 st heating, ingot casting is subjected to homogenization heat treatment before cogging forging, axial upsetting and drawing deformation are carried out on a 4500T quick forging machine, the deformation of upsetting and drawing is 10-30%, the deformation of each pass is not more than 20%, and the surface temperature of the blank after forging is more than 900 ℃;
step 2, the heating temperature of the 2 nd heating is 1150-1180 ℃, reversing upsetting and drawing deformation is carried out on a 4500T quick forging machine, the deformation of upsetting and drawing is 20-40%, the deformation of each pass is not less than 20%, and the surface temperature of the blank after forging is more than 900 ℃;
step 3, heating the blank at the 3 rd to 5 th heating temperature of 1120 to 1150 ℃, performing reversing upsetting-drawing deformation on a 4500T quick forging machine, wherein the deformation of upsetting and drawing at each time is 25 to 45 percent, the deformation at each time is not less than 30 percent, and the surface temperature of the blank after forging is more than 900 ℃;
step 4, drawing out the blank on a 4500T rapid forging machine at the 6 th heating temperature of 1100-1140 ℃, wherein the deformation amount of each heating time is controlled to be 20-40%, the deformation amount of each heating time is not less than 20%, and the surface temperature of the blank after forging is higher than 850 ℃;
and 5, chamfering and rounding the 7 th heating temperature at 1080-1140 ℃ on a 4500T rapid forging machine, wherein the deformation of each heating time in the step is 10-30%, the deformation of each heating time is not more than 20%, rapid high-frequency forging is required, and the surface temperature of the forged blank is more than 850 ℃.
2. The method for preparing a high-temperature alloy bar according to claim 1, wherein the heating temperature in the step 1 is 1135-1145 ℃, the temperature is kept for 4-6 hours, the deformation amount of each pass is not more than 15%, and the surface temperature of the blank after forging is more than 900 ℃ and less than 1000 ℃.
3. The method for preparing a high-temperature alloy bar according to claim 1, wherein the heating temperature in the step 2 is 1150-1175 ℃, the heating and heat preservation are carried out for 3-5 hours, the forging of upsetting and drawing are carried out alternately in the axial direction and the radial direction of the blank, the deformation of upsetting and drawing is 30-40%, the deformation of each pass is 20-40%, and the surface temperature of the blank after the forging is more than 900 ℃ and less than 1100 ℃.
4. The method for preparing a high-temperature alloy bar according to claim 1, wherein in the step 3, the heating and heat preservation are carried out for 2-5 hours, the reversing upsetting deformation is carried out on a 4500T quick forging machine, the deformation is controlled to be 30-40%, the deformation of each pass is controlled to be 30-40%, and the surface temperature of the blank after the forging is greater than 900 ℃ and less than 1100 ℃.
5. The method for preparing a high-temperature alloy bar according to claim 1, wherein the heating temperature in the step 4 is 1100-1135 ℃, the heating and heat preservation are carried out for 2-3 hours, the drawing is carried out on a 4500T quick forging machine, the deformation of each pass is 20-25%, and the surface temperature of the blank after the forging is more than 850 ℃ and less than 900 ℃.
6. The method for preparing the high-temperature alloy bar according to claim 1, wherein in the step 5, the heating temperature is 1100 +/-10 ℃, the heating and heat preservation are carried out for 2-3 hours, chamfering and rounding are carried out on a 4500T quick forging machine, the deformation amount of each pass is 15-20%, during rounding forging, quick high-frequency forging is required, and the surface temperature of the blank after forging is more than 850 ℃ and less than 900 ℃.
7. The method for preparing a high-temperature alloy bar according to claim 1, wherein the steps 1-3 are air cooling after forging, grinding and cleaning, and the step 4 is performing tempering and temperature compensation after forging, and performing next-fire forging.
8. The method for preparing a high-temperature alloy bar according to claim 1, wherein in the step 5, the 7 th firing time is performed on a 4500T quick forging machine for chamfering and rounding, the deformation amount of the chamfering firing time is 15-25%, the tempering is performed for the rounding forging, the surface temperature of the blank after the forging is more than 850 ℃, the rounding deformation amount is 10-20%, and the reduction per hammer is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341718.2A CN111496161B (en) | 2020-04-27 | 2020-04-27 | Preparation method of high-temperature alloy bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341718.2A CN111496161B (en) | 2020-04-27 | 2020-04-27 | Preparation method of high-temperature alloy bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111496161A true CN111496161A (en) | 2020-08-07 |
| CN111496161B CN111496161B (en) | 2022-06-28 |
Family
ID=71866451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010341718.2A Active CN111496161B (en) | 2020-04-27 | 2020-04-27 | Preparation method of high-temperature alloy bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111496161B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112317662A (en) * | 2020-10-09 | 2021-02-05 | 中国航发北京航空材料研究院 | Extrusion-upsetting-drawing composite cogging method for high-temperature alloy difficult to deform |
| CN112708802A (en) * | 2020-12-11 | 2021-04-27 | 西安聚能高温合金材料科技有限公司 | High-temperature-resistant material for tool and die and preparation method thereof |
| CN112813292A (en) * | 2020-12-25 | 2021-05-18 | 苏州集萃高合材料科技有限公司 | Manufacturing method of fine-grain NiCr20TiAl alloy forging material |
| CN113263124A (en) * | 2021-05-10 | 2021-08-17 | 大冶特殊钢有限公司 | Preparation method of full-section fine-grain GH4169 alloy radial forging bar |
| CN113305172A (en) * | 2021-05-21 | 2021-08-27 | 中国矿业大学 | Preparation method of GH4169 alloy bar |
| CN114273584A (en) * | 2021-12-27 | 2022-04-05 | 无锡派克新材料科技股份有限公司 | Forging-modifying method for 1200 KG-grade high-temperature oxidation-resistant alloy |
| CN114472770A (en) * | 2021-12-08 | 2022-05-13 | 抚顺特殊钢股份有限公司 | Forging process of GH141 alloy large round bar |
| CN114632901A (en) * | 2022-03-18 | 2022-06-17 | 西安聚能高温合金材料科技有限公司 | Preparation method of high-temperature alloy free forging bar blank for ultra-supercritical thermal power generating unit |
| CN114762885A (en) * | 2021-01-14 | 2022-07-19 | 钢铁研究总院 | Precision forging method of GH4720Li high-temperature alloy blade and blade forging thereof |
| CN114770135A (en) * | 2022-03-22 | 2022-07-22 | 西安聚能高温合金材料科技有限公司 | Preparation method of fine-grain high-strength GH2787 alloy small-size bar |
| CN114850364A (en) * | 2022-04-11 | 2022-08-05 | 中国船舶重工集团公司第七二五研究所 | Forging method of marine copper-nickel alloy BFe30-1-1 bar |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104898A (en) * | 2007-06-19 | 2008-01-16 | 中国科学院金属研究所 | High-temperature titanium alloy with high heat resistance and high thermal stabilization |
| US20120060981A1 (en) * | 2010-09-15 | 2012-03-15 | Ati Properties, Inc. | Processing Routes for Titanium and Titanium Alloys |
| CN105331912A (en) * | 2015-11-27 | 2016-02-17 | 西部超导材料科技股份有限公司 | GH4169 high-temperature alloy bar and manufacturing method thereof |
| CN106734795A (en) * | 2016-12-14 | 2017-05-31 | 西部超导材料科技股份有限公司 | A kind of preparation method of niobium GH4169 alloy bar materials high |
| CN106868436A (en) * | 2017-01-18 | 2017-06-20 | 抚顺特殊钢股份有限公司 | A kind of fast footpath forging Joint Production GH4169 alloy fine grain bar manufacture method |
| CN107523718A (en) * | 2017-07-13 | 2017-12-29 | 西部超导材料科技股份有限公司 | A kind of aerospace component 1500MPa level titanium alloys and preparation method thereof |
| CN110373620A (en) * | 2019-09-03 | 2019-10-25 | 钢铁研究总院 | A method of improving the Ni-based precipitation strength type high temperature alloy hot-working character of high γ ' phase volume fraction |
| CN111020298A (en) * | 2019-12-23 | 2020-04-17 | 西部超导材料科技股份有限公司 | GH3039 high-temperature alloy bar and preparation method thereof |
-
2020
- 2020-04-27 CN CN202010341718.2A patent/CN111496161B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104898A (en) * | 2007-06-19 | 2008-01-16 | 中国科学院金属研究所 | High-temperature titanium alloy with high heat resistance and high thermal stabilization |
| US20120060981A1 (en) * | 2010-09-15 | 2012-03-15 | Ati Properties, Inc. | Processing Routes for Titanium and Titanium Alloys |
| CN105331912A (en) * | 2015-11-27 | 2016-02-17 | 西部超导材料科技股份有限公司 | GH4169 high-temperature alloy bar and manufacturing method thereof |
| CN106734795A (en) * | 2016-12-14 | 2017-05-31 | 西部超导材料科技股份有限公司 | A kind of preparation method of niobium GH4169 alloy bar materials high |
| CN106868436A (en) * | 2017-01-18 | 2017-06-20 | 抚顺特殊钢股份有限公司 | A kind of fast footpath forging Joint Production GH4169 alloy fine grain bar manufacture method |
| CN107523718A (en) * | 2017-07-13 | 2017-12-29 | 西部超导材料科技股份有限公司 | A kind of aerospace component 1500MPa level titanium alloys and preparation method thereof |
| CN110373620A (en) * | 2019-09-03 | 2019-10-25 | 钢铁研究总院 | A method of improving the Ni-based precipitation strength type high temperature alloy hot-working character of high γ ' phase volume fraction |
| CN111020298A (en) * | 2019-12-23 | 2020-04-17 | 西部超导材料科技股份有限公司 | GH3039 high-temperature alloy bar and preparation method thereof |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112317662A (en) * | 2020-10-09 | 2021-02-05 | 中国航发北京航空材料研究院 | Extrusion-upsetting-drawing composite cogging method for high-temperature alloy difficult to deform |
| CN112708802A (en) * | 2020-12-11 | 2021-04-27 | 西安聚能高温合金材料科技有限公司 | High-temperature-resistant material for tool and die and preparation method thereof |
| CN112813292A (en) * | 2020-12-25 | 2021-05-18 | 苏州集萃高合材料科技有限公司 | Manufacturing method of fine-grain NiCr20TiAl alloy forging material |
| CN114762885A (en) * | 2021-01-14 | 2022-07-19 | 钢铁研究总院 | Precision forging method of GH4720Li high-temperature alloy blade and blade forging thereof |
| CN113263124B (en) * | 2021-05-10 | 2022-06-21 | 大冶特殊钢有限公司 | Preparation method of full-section fine-grain GH4169 alloy radial-forged bar |
| CN113263124A (en) * | 2021-05-10 | 2021-08-17 | 大冶特殊钢有限公司 | Preparation method of full-section fine-grain GH4169 alloy radial forging bar |
| CN113305172A (en) * | 2021-05-21 | 2021-08-27 | 中国矿业大学 | Preparation method of GH4169 alloy bar |
| CN113305172B (en) * | 2021-05-21 | 2022-09-27 | 中国矿业大学 | Preparation method of GH4169 alloy bar |
| CN114472770A (en) * | 2021-12-08 | 2022-05-13 | 抚顺特殊钢股份有限公司 | Forging process of GH141 alloy large round bar |
| CN114472770B (en) * | 2021-12-08 | 2023-04-21 | 抚顺特殊钢股份有限公司 | GH141 alloy large round bar forging process |
| CN114273584A (en) * | 2021-12-27 | 2022-04-05 | 无锡派克新材料科技股份有限公司 | Forging-modifying method for 1200 KG-grade high-temperature oxidation-resistant alloy |
| CN114273584B (en) * | 2021-12-27 | 2024-04-05 | 无锡派克新材料科技股份有限公司 | Forging method for 1200 KG-grade high-temperature antioxidant alloy |
| CN114632901A (en) * | 2022-03-18 | 2022-06-17 | 西安聚能高温合金材料科技有限公司 | Preparation method of high-temperature alloy free forging bar blank for ultra-supercritical thermal power generating unit |
| CN114770135A (en) * | 2022-03-22 | 2022-07-22 | 西安聚能高温合金材料科技有限公司 | Preparation method of fine-grain high-strength GH2787 alloy small-size bar |
| CN114770135B (en) * | 2022-03-22 | 2023-09-29 | 中国航发航空科技股份有限公司 | Preparation method of fine-grain high-strength GH2787 alloy small-size bar |
| CN114850364A (en) * | 2022-04-11 | 2022-08-05 | 中国船舶重工集团公司第七二五研究所 | Forging method of marine copper-nickel alloy BFe30-1-1 bar |
| CN114850364B (en) * | 2022-04-11 | 2023-06-30 | 中国船舶重工集团公司第七二五研究所 | Forging method of marine copper-nickel alloy BFe30-1-1 bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111496161B (en) | 2022-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111496161B (en) | Preparation method of high-temperature alloy bar | |
| CN106868436B (en) | Manufacturing method for producing high-temperature alloy GH4169 fine-grained bar through rapid-diameter forging combination | |
| CN113235030B (en) | Preparation method of large-size GH4169 high-temperature alloy bar | |
| CN109252061B (en) | Preparation method of high-temperature, high-thermal-stability and high-fracture-toughness titanium alloy bar | |
| CN108893689B (en) | Inconel718 alloy disc forging homogenizing manufacturing method | |
| CN109161780B (en) | Method for improving processing performance of FeCrNiAl-based high-entropy alloy | |
| CN112338119B (en) | Method for forging near-alpha type high-temperature titanium alloy large-size bar | |
| JP2022538131A (en) | High-strength stainless steel rotor and manufacturing method thereof | |
| CN113042565A (en) | High-quality GH2132 alloy bar for fasteners and production method thereof | |
| CN111069495B (en) | Manufacturing process of alloy steel forging with extra-large section | |
| CN110976512A (en) | Cold rolling method for TC4 titanium alloy wire | |
| CN112496216B (en) | Forging production process of 30Cr15MoN high-nitrogen martensitic stainless steel bar | |
| CN112226593A (en) | Preparation production process for improving toughness and isotropy of hot-work die steel | |
| CN115846562A (en) | Preparation method of high-temperature alloy bar | |
| CN110983218B (en) | Preparation method of small-size pure niobium bar with uniform structure | |
| CN113118349A (en) | Preparation method of Ti6242 titanium alloy large-thickness cake blank | |
| CN114799002B (en) | Forging method of ultra-large high-temperature alloy cake blank | |
| CN117324522B (en) | Forging forming method for improving flaw detection level of titanium alloy bar | |
| CN115011822B (en) | Preparation method of square-outside and round-inside zirconium alloy section bar | |
| CN114472770B (en) | GH141 alloy large round bar forging process | |
| CN112828218B (en) | Method for forming large-size thick-section ultrahigh-strength aluminum alloy cylindrical part | |
| CN112496032B (en) | Rolling production process of 30Cr15MoN high-nitrogen martensitic stainless steel bar | |
| CN117966058A (en) | Preparation method of GH4105 alloy small-size bar | |
| CN115213251A (en) | Preparation method of GH4698 alloy small-size bar | |
| CN115722618A (en) | Preparation method of short-process TC25G titanium alloy high-uniformity bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |