CN113245549A - High-temperature alloy regulator and preparation method thereof - Google Patents
High-temperature alloy regulator and preparation method thereof Download PDFInfo
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- CN113245549A CN113245549A CN202110362655.3A CN202110362655A CN113245549A CN 113245549 A CN113245549 A CN 113245549A CN 202110362655 A CN202110362655 A CN 202110362655A CN 113245549 A CN113245549 A CN 113245549A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
- B22F3/1025—Removal of binder or filler not by heating only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A35/00—Accessories or details not otherwise provided for
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Abstract
The application relates to the technical field of automatic rifle regulators, in particular to a high-temperature alloy regulator and a preparation method thereof; the preparation method comprises the following steps: casting of the electrode: the casting temperature is 1400-1500 ℃; preparing high-temperature alloy powder; preparation of feed: uniformly mixing high-temperature alloy powder and a binder to form a feed; injection molding: injecting the feed material into a mold cavity to form an injection blank; catalytic degreasing: carrying out nitric acid catalytic degreasing on the injection blank to form a degreased blank; and (3) sintering: sintering the degreased blank in a vacuum environment or a protective atmosphere to obtain a sintered blank; the sintering temperature is 1150-1300 ℃, and the heat preservation time is 3-6 h; and (3) heat preservation and pressure maintaining: placing the sintered blank in a high-temperature and high-pressure environment, and carrying out heat preservation and pressure maintaining treatment; the treatment time is more than 3 h; and a regulator produced by the above production method. The service life of the regulator manufactured by the method is remarkably prolonged.
Description
Technical Field
The present application relates to the technical field of automatic rifle regulators, and more particularly, it relates to a superalloy regulator and a method of making the same.
Background
Common ways in which automatic rifles may be automated are recoil and air conduction. The gas guide type automatic mode is that the piston is pushed by shunting partial gunpowder gas so as to realize automation. In the gas-guiding type automatic rifle, a part for adjusting the flow of the shunt gas is a regulator, and the regulator is provided with an adjusting hole for the gunpowder gas to pass through.
In the process of using the automatic rifle, the adjusting hole on the adjuster not only can be washed by high temperature, high pressure and high speed brought by the gunpowder combustion airflow, but also can be chemically corroded by various gas components in the gunpowder airflow. The regulator is different from the barrel, the barrel is replaceable in the whole life cycle of the weapon, and the regulator is not replaceable in the whole life cycle of the weapon, and the service life of the regulator determines the service life of the automatic rifle.
With the continuous development of science and technology, the requirements on the shooting speed and the fire power density of the automatic rifle are higher, and the regulator faces higher temperature, pressure and friction. The ablative wear of the tuning holes in the regulators is more severe in the face of higher temperatures, pressures and friction. When the adjusting hole of the adjuster is ablated and worn to 20% of the diameter, the adjuster can lose effectiveness. At present, the regulator of the automatic rifle is mostly made of Cr-plated steel, the service life of the regulator does not exceed 8000 times, the service life is short, and the requirement of personnel in the field on the service life of the regulator cannot be met.
Disclosure of Invention
In order to improve the service life of the regulator, the application provides a high-temperature alloy regulator and a preparation method thereof.
In a first aspect, the present application provides a method for manufacturing a superalloy regulator, which adopts the following technical scheme:
a preparation method of a high-temperature alloy regulator specifically comprises the following steps:
(1) casting of the electrode: casting the high-temperature alloy by using a vacuum induction melting technology to form an electrode; the casting temperature is 1400-1500 ℃;
(2) preparing high-temperature alloy powder: preparing the electrode prepared in the step (1) into high-temperature alloy powder by using an argon atomization process;
(3) preparation of feed: uniformly mixing the high-temperature alloy powder prepared in the step (2) with a binder to form a feed;
(4) injection molding: injecting the feed prepared in the step (3) into a mold cavity to form an injection blank;
(5) catalytic degreasing: carrying out nitric acid catalytic degreasing on the injection blank prepared in the step (4) to form a degreased blank;
(6) and (3) sintering: sintering the degreased blank prepared in the step (5) in a vacuum environment or a protective atmosphere to obtain a sintered blank; the sintering temperature is 1150-1300 ℃, and the heat preservation time is 3-6 h;
(7) and (3) heat preservation and pressure maintaining: placing the sintered blank prepared in the step (6) in a high-temperature and high-pressure environment, and carrying out heat preservation and pressure maintaining treatment to obtain a regulator; the treatment time is more than 3 h.
By adopting the technical scheme, the shooting life of the regulator prepared and obtained by the application is obviously prolonged. In the process of preparing the regulator by using the method, the cast high-temperature alloy is cast into the consumable electrode, and the casting temperature is controlled within the range of 1400 ℃ and 1500 ℃. Then preparing the self-made electrode into high-temperature alloy powder, preparing the high-temperature alloy powder into a feed by using a binder, and forming a sintered blank state regulator by injection molding, catalytic degreasing and sintering the feed; and finally, carrying out heat preservation and pressure maintaining treatment to obtain the regulator.
In the casting of the self-made electrode, the cast high-temperature alloy is subjected to high-temperature casting at 1400-1500 ℃, primary carbides in the high-temperature alloy are changed into equiaxial particles from a skeleton structure, so that compared with the cast high-temperature alloy, the plasticity of the consumable electrode obtained by casting is obviously improved, and the plasticity of the regulator finally prepared by using the consumable electrode is also obviously improved. The self-made electrode is prepared into high-temperature alloy powder, the high-temperature alloy powder is prepared into a feed by using a binder, and then injection molding, catalytic degreasing and sintering of the feed are carried out. In the process, the sintering temperature is controlled to 1150-1300 ℃, and the sintering heat preservation time is 3-6 h. Through the operation steps, excellent mechanical properties of the prepared regulator can be obtained. In the face of the automatic rifle shooting process, the high-temperature gas erodees and ablates the wearing and tearing to the regulator, and the regulator of this application preparation can resist the gunpowder ablation that leads to because of the high temperature well and erode the mechanical wear that leads to with the high-temperature gas, reduces the fracture and the embrittlement on regulator top layer, so can effectively prolong the life of regulator to further prolong the life of the automatic rifle that sets up this regulator.
In the related technology, in the process of intensive shooting of the automatic rifle, the temperature of the inner wall of the gun barrel can reach 1000 ℃ at most due to the fact that the gun barrel is washed by residual high-temperature gas. The temperature at the adjustment orifice of the adjuster will be higher than the temperature of the inner wall of the barrel. In addition, the actuator is subjected to thermal cycles from high temperature to normal temperature or from normal temperature to high temperature, resulting in frequent contraction and expansion of the surface of the actuator, causing cracking and embrittlement of the surface layer of the actuator. Therefore, compared with the service life of the regulator plated with Cr steel, the service life of the regulator prepared by the method is obviously prolonged, under the same condition, the service life of the regulator can reach 20000- & lt 21000 & gt, and the service life of the regulator plated with Cr steel can only reach 8000 & gt at most. The service life of the regulator is prolonged by nearly 3 times.
In one embodiment, the casting temperature of the electrode can be 1430 deg.C, 1460 deg.C, 1400 & lt & gt 1430 deg.C, 1400 & lt & gt 1460 deg.C, 1430 & lt & gt 1500 & gt deg.C, 1460 & lt & gt & lt & gt 1500 deg.C.
In one embodiment, the holding time in the sintering in the step (6) can be 4.5h, 3-4.5h, 4.5-6 h.
Preferably, in the preparation of the feed in the step (3), the binder is (by weight percent): 65-80% of polyformaldehyde, 7-15% of polyethylene, 9-13% of polypropylene and 4-7% of stearic acid.
In one embodiment, the polyoxymethylene may also be 75%, 65-75%, 75-80%.
In one embodiment, the polyethylene may also be 10%, 7-10%, 10-15%.
In one embodiment, the polypropylene may also be 10%, 9-10%, 10-13%.
In one embodiment, the stearic acid may also be 5%, 4-5%, 5-7%.
By adopting the technical scheme, the selection of the binder is an important link in the powder injection molding process, the binder is formed by utilizing polyformaldehyde, polyethylene, polypropylene and stearic acid according to a proper proportion, and a better binder formula is obtained through experimental analysis, so that the mechanical property of the regulator can be obviously improved, and the service life of the regulator can be prolonged. The mechanical property of the regulator made of the binder and the high-temperature alloy powder is obviously improved through the synergistic effect of the polyformaldehyde, the polyethylene, the polypropylene and the stearic acid.
Preferably, in the preparation of the feedstock in the step (3), the weight ratio range of the superalloy powder and the binder is as follows: 8.6-9.2.
In one embodiment, the weight ratio of superalloy powder and binder may be: 8.75, 9.05, 8.6-8.75, 8.6-8.9, 8.6-9.05, 8.75-8.9, 8.75-9.05, 8.75-9.2, 8.9-9.05, 8.9-9.2 and 9.05-9.2.
By adopting the technical scheme, the adding proportion of the high-temperature alloy powder and the binder in the feeding preparation process is controlled within the range, so that the mechanical property of the prepared regulator is remarkably improved, and the service life of the prepared regulator is remarkably prolonged.
Preferably, in the step (4) injection molding, the injection pressure of the injection molding is 80-200MPa, and the injection temperature is 100-200 ℃.
In one embodiment, the injection pressure for injection molding may be 120MPa, 160MPa, 120MPa, 80-160MPa, 120-.
In one embodiment, the injection temperature for injection molding may be 140 ℃, 170 ℃, 100-.
By adopting the technical scheme, in the injection molding step, the injection pressure and the injection temperature are respectively controlled within the ranges, so that the mechanical property of the prepared regulator can be further improved, and the service life of the prepared regulator is further obviously prolonged.
Preferably, in the step (5), the conditions of catalytic degreasing are as follows: the flow rate of the nitric acid is 2-5 ml/min, the catalytic temperature is 80-120 ℃, and the degreasing time is 10-18 h.
In one embodiment, the flow rate of nitric acid may be 3.5ml/min, 2-3.5ml/min, 3.5-5 ml/min.
In one embodiment, the catalytic temperature may be 100 ℃, 80-100 ℃, 100-.
In one embodiment, the degreasing time may be 14h, 16h, 10-14h, 10-16h, 14-18h, 16-18 h.
By adopting the technical scheme, in the step of catalytic degreasing, the conditions of catalytic degreasing are respectively controlled within the ranges, so that the mechanical property of the prepared regulator can be further improved, and the service life of the prepared regulator is further obviously prolonged.
Preferably, in the step (7) of maintaining the temperature and pressure, the high-temperature and high-pressure environment is as follows: the temperature is 1150-1250 ℃, and the pressure is 100-150 MPa.
By adopting the technical scheme, in the step of heat preservation and pressure maintaining, the environment with high temperature and high pressure is controlled in the range, and the mechanical property of the prepared regulator can be further improved by the parameter control through experimental analysis, so that the service life of the prepared regulator is further remarkably prolonged.
Preferably, in the step (1), in the casting of the electrode, the diameter of the electrode formed by casting is 60-100 mm.
In one embodiment, the diameter of the cast electrode may also be 80mm, 60-80mm, 80-100 mm.
Preferably, the preparation method of the high-temperature alloy regulator specifically comprises the following steps:
(1) casting of the electrode: casting the high-temperature alloy by using a vacuum induction melting technology to form an electrode; the casting temperature is 1400-1500 ℃; the diameter of the electrode formed by casting is 60-100 mm;
(2) preparing high-temperature alloy powder: preparing the electrode prepared in the step (1) into high-temperature alloy powder by using an argon atomization process;
(3) preparation of feed: uniformly mixing the high-temperature alloy powder prepared in the step (2) with a binder to form a feed; the binder comprises (by weight percent): 65-80% of polyformaldehyde, 7-15% of polyethylene, 9-13% of polypropylene and 4-7% of stearic acid; the weight ratio range of the high-temperature alloy powder and the binder is as follows: 8.6-9.2; preferably, the weight ratio of the superalloy powder to the binder is in the range of: 8.6-8.9;
(4) injection molding: placing the feed prepared in the step (3) in a powder injection molding machine, and injecting the feed into a mold cavity to form an injection blank; the injection pressure of the injection molding is 80-200MPa, and the injection temperature is 100-;
(5) catalytic degreasing: carrying out nitric acid catalytic degreasing on the injection blank prepared in the step (4) to form a degreased blank; the conditions of catalytic degreasing are as follows: the flow rate of the nitric acid is 2-5 ml/min, the catalytic temperature is 80-120 ℃, and the degreasing time is 10-18 h; preferably, the degreasing time is 14-16 h;
(6) and (3) sintering: sintering the degreased blank prepared in the step (5) in a vacuum environment or a protective atmosphere to obtain a sintered blank; the sintering temperature is 1150-1300 ℃, and the heat preservation time is 3-6 h;
(7) and (3) heat preservation and pressure maintaining: placing the sintered blank prepared in the step (6) in an environment with the temperature of 1150-; the treatment time is more than 3h, preferably 3-5 h.
The argon atomization process utilizes atomization equipment to prepare high-temperature alloy powder, and the atomization equipment comprises a smelting chamber, an atomization tower and a cyclone separator. In the argon atomization process, the argon atomization pressure is 2 MPa.
In a second aspect, the present application provides a superalloy regulator, which adopts the following technical scheme:
the high-temperature alloy regulator prepared by the preparation method.
The superalloy may be of the grade
6.
By adopting the technical scheme, when the regulator is prepared by using the preparation method, the raw material can be high-temperature alloy, particularly carbide reinforced cobalt-based high-temperature alloy, such as the alloy with the trademark of
6. Other high temperature alloys may also be used as raw materials for the production process of the present application.
In summary, the present application has the following beneficial effects:
1. the regulator prepared by the preparation method can reduce the ablation abrasion of the regulating hole in the regulator in the using process of the automatic rifle, weaken the cracking and embrittlement of the surface layer of the regulator, and remarkably improve the mechanical property, so that the service life of the regulator can be effectively prolonged, and the service life of the automatic rifle provided with the regulator can be further prolonged. Compared with the service life of the Cr-plated steel regulator, the service life of the regulator prepared by the method is prolonged by nearly 3 times. Under the same condition, the service life of the regulator can reach more than 20000 times, and the service life of the Cr-plated steel regulator in the related technology can only reach 8000 times at most.
2. Through experimental analysis, the adhesive with better proportion is obtained, the type of the adhesive is controlled within the range, the mechanical property of the regulator can be obviously improved, and the service life of the regulator can be prolonged.
3. On the basis, through experimental analysis, when the feed is formed, the proportion of the high-temperature alloy powder and the binder is controlled within the range, so that the mechanical property of the regulator can be further improved, and the service life of the regulator can be further prolonged.
Drawings
Fig. 1 is a flow chart of a method of preparation provided herein.
Detailed Description
Based on the analysis of the failure reasons of Cr-plated steel regulators in the related art, the application develops a high-temperature alloy regulator and a preparation method thereof. Compared with the service life of the Cr-plated steel regulator in the related technology, the service life of the regulator is remarkably prolonged. The regulator prepared by the application can well resist the ablation of gunpowder combustion airflow to the regulator, so that the service life of the regulator can be effectively prolonged, and the service life of the automatic rifle provided with the regulator is further prolonged.
The present application will be described in further detail below with reference to the drawings, examples 1 to 35, comparative example, and the results of the test of the actuator.
Examples 1 to 35
Examples 1-35 provide methods for making superalloy regulators, respectively.
The preparation method of the high-temperature alloy regulator specifically comprises the following steps:
(1) casting of the electrode: casting the high-temperature alloy by using a vacuum induction melting technology to form an electrode;
(2) preparing high-temperature alloy powder: preparing the electrode prepared in the step (1) into high-temperature alloy powder by using an argon atomization process;
(3) preparation of feed: uniformly mixing the high-temperature alloy powder prepared in the step (2) with a binder to form a feed;
(4) injection molding: placing the feed prepared in the step (3) in a powder injection molding machine, and injecting the feed into a mold cavity to form an injection blank;
(5) catalytic degreasing: carrying out nitric acid catalytic degreasing on the injection blank prepared in the step (4) to form a degreased blank;
(6) and (3) sintering: sintering the degreased blank prepared in the step (5) in a vacuum environment or a protective atmosphere to obtain a sintered blank;
(7) and (3) heat preservation and pressure maintaining: and (4) placing the sintered blank prepared in the step (6) in a high-temperature and high-pressure environment, and carrying out heat preservation and pressure maintaining treatment.
The manufacturing methods of the superalloy regulators provided in the above examples are different in the parameters of the respective steps, wherein the parameters of the respective steps in the manufacturing methods of the regulators corresponding to examples 1 to 12 are shown in table 1, the parameters of the respective steps in the manufacturing methods of the regulators corresponding to examples 13 to 24 are shown in table 2, and the parameters of the respective steps in the manufacturing methods of the regulators corresponding to examples 25 to 35 are shown in table 3.
In the preparation method of the high-temperature alloy regulator provided by the embodiment, the high-temperature alloy regulator takes the mark as
The high-temperature alloy of 6 is used as a raw material.
TABLE 1 parameters for the various steps in the process for making the regulators of examples 1-12
TABLE 2 parameters for the various steps in the process for making the regulators of examples 13-24
TABLE 3 Process for the preparation of the regulators of examples 25 to 35
Comparative example
The regulator provided in this comparative example was a Cr-plated steel regulator used for an automatic rifle in the related art.
Detection test
(I) mechanical Property measurement
Regulators prepared by the preparation methods of examples 1-34And as-cast state (before heat deformation processing)
6, taking the high-temperature alloy as a detection object, and carrying out performance test at 1000 ℃; in parts 2 of JB/T7705-1995 and GB/T228.1-2010 metallic Material tensile test: based on the high-temperature test method, the wear resistance and the tensile property are detected and compared with the cast state
6 the corresponding properties of the superalloys are compared. The results are shown in Table 4.
TABLE 4 mechanical Properties of the actuators and as-cast superalloys of examples 1-35
As can be seen from Table 4, the regulators obtained by the production methods of examples 1 to 35 have excellent wear resistance and tensile properties. The volume loss of the actuator prepared in example 34 was 23.2mm3The abrasion coefficient is 0.0090, the tensile strength is 267MPa, the yield strength is 169MPa, and the elongation is 19.8%. Comparing the wear resistance and the tensile property of the regulator prepared in the embodiments 1 to 35 with those of the cast carbide reinforced cobalt-based high-temperature alloy, it can be seen that the wear resistance and the tensile property of the regulator prepared in the present application have obvious advantages over those of the cast carbide reinforced cobalt-based high-temperature alloy in a high-temperature environment of 1000 ℃, so that the prepared regulator has excellent wear resistance and tensile property, and is further beneficial to prolonging the service life of the regulator.
(II) Life test
Detecting an object: example 1, example 34 and the regulator prepared by the comparative example.
The detection method comprises the following steps: and (3) carrying out a shooting test by using the automatic rifle provided with the regulator, wherein the shooting distance is 100m, and testing and recording the shooting life of each regulator.
And (3) detection results: the results of the firing life measurements of the six regulators are shown in table 5.
TABLE 5 test results of the firing life of three regulators
Combining the test results of the firing lives of example 1, example 34, comparative example and table 5, it can be seen that the firing lives of the regulators prepared in example 1 and example 34 of the present application are all greater than 20000 times, while the firing lives of the regulators plated with Cr steel in the comparative example are only 7200 times and 7350 times respectively. According to the results of the mechanical property detection in the performance detection, the firing lives of the regulators prepared by other embodiments of the application are all larger than 20000 times. From the above results, it can be seen that the firing life of the actuator prepared by the present application exceeds the firing life of the Cr-plated steel actuator by more than 2 times. Compared with the service life of the regulator plated with Cr steel in the related technology, the service life of the regulator prepared by the method is obviously prolonged.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The preparation method of the high-temperature alloy regulator is characterized by comprising the following steps:
(1) casting of the electrode: casting the high-temperature alloy by using a vacuum induction melting technology to form an electrode; the casting temperature is 1400-1500 ℃;
(2) preparing high-temperature alloy powder: preparing the electrode prepared in the step (1) into high-temperature alloy powder by using an argon atomization process;
(3) preparation of feed: uniformly mixing the high-temperature alloy powder prepared in the step (2) with a binder to form a feed;
(4) injection molding: injecting the feed prepared in the step (3) into a mold cavity to form an injection blank;
(5) catalytic degreasing: carrying out nitric acid catalytic degreasing on the injection blank prepared in the step (4) to form a degreased blank; the conditions of catalytic degreasing are as follows: the flow rate of the nitric acid is 2-5 ml/min, the catalytic temperature is 80-120 ℃, and the degreasing time is 10-18 h;
(6) and (3) sintering: sintering the degreased blank prepared in the step (5) in a vacuum environment or a protective atmosphere to obtain a sintered blank; the sintering temperature is 1150-1300 ℃, and the heat preservation time is 3-6 h;
(7) and (3) heat preservation and pressure maintaining: placing the sintered blank prepared in the step (6) in a high-temperature and high-pressure environment, and carrying out heat preservation and pressure maintaining treatment to obtain a regulator; the treatment time is more than 3 h.
2. The method for preparing a high-temperature alloy regulator as claimed in claim 1, wherein in the step (3) of preparing the feed material, the binder is (by weight percent): 65-80% of polyformaldehyde, 7-15% of polyethylene, 9-13% of polypropylene and 4-7% of stearic acid.
3. A method for preparing a high temperature alloy regulator as claimed in claim 1 or 2, wherein in the step (3) of preparing the feed material, the weight ratio of the high temperature alloy powder to the binder is in the range of: 8.6-9.2.
4. The method as claimed in claim 3, wherein the weight ratio of the superalloy powder to the binder in the step (3) feed is in the range of: 8.6-8.9.
5. The method as claimed in claim 1, wherein the injection pressure of the injection molding in the step (4) is 80-200MPa, and the injection temperature is 100-200 ℃.
6. The method for preparing a high-temperature alloy regulator as claimed in claim 1, wherein in the step (5), the degreasing time is 14-16 h.
7. A superalloy regulator and a method for making the same as claimed in claim 1, wherein in the step (7), the high temperature and high pressure environment is: the temperature is 1150-1250 ℃, and the pressure is 100-150 MPa.
8. A method for preparing a superalloy conditioner according to claim 1, wherein in the step (1) casting of the electrode, the cast electrode has a diameter of 60-100 mm.
9. A superalloy conditioner produced by the method of any of claims 1 to 9.
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| EP2256223A1 (en) * | 2009-05-29 | 2010-12-01 | General Electric Company | Nickel-base superalloys and components formed thereof |
| CN105290392A (en) * | 2015-12-08 | 2016-02-03 | 重庆文理学院 | 304L stainless steel metal powder injection molding method |
| CN107999756A (en) * | 2017-12-08 | 2018-05-08 | 深圳艾利门特科技有限公司 | A kind of method that heat-resisting alloy honeycomb thermal insulation board is prepared based on injection moulding |
| CN110480016A (en) * | 2019-09-17 | 2019-11-22 | 江苏精研科技股份有限公司 | A method of labyrinth function ceramics part is prepared using powder injection-molded |
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