CN114472870A - Heat-resistant alloy steel and preparation method thereof - Google Patents
Heat-resistant alloy steel and preparation method thereof Download PDFInfo
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- CN114472870A CN114472870A CN202210104111.1A CN202210104111A CN114472870A CN 114472870 A CN114472870 A CN 114472870A CN 202210104111 A CN202210104111 A CN 202210104111A CN 114472870 A CN114472870 A CN 114472870A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/02—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/04—Handling or stripping castings or ingots
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
- B22D33/02—Turning or transposing moulds
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/11—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of chromium or alloys based thereon
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Abstract
The invention relates to the technical field of high-strength steel, in particular to a heat-resistant alloy steel and a preparation method thereof, wherein the heat-resistant alloy steel comprises the following chemical components in percentage by mass: 0.2 to 0.4 wt% of C, 19 to 25 wt% of Ni, 2.3 to 4.6 wt% of Mn, 1.5 to 2.3 wt% of W, 2 to 4 wt% of Mo, 1.2 to 2.8 wt% of Si, 1 to 0.4 wt% of N, 25 to 35 wt% of Cr, 0.02 to 0.15 wt% of P, 0.01 to 0.06 wt% of La, and the balance of Fe; the preparation method comprises the following steps; step one, calculating and weighing the dosage of each raw material according to the composition and the content ratio of each component; step two, smelting: controlling the temperature in the smelting furnace at 1555-1575 ℃, and then adding the raw materials into the smelting furnace for smelting treatment to obtain molten steel; according to the invention, high-temperature heat-resistant Cr, Mo, La and the like are added on the basis of the iron alloy matrix, an alloy oxide film is formed in the preparation method, and the alloy oxide film is more compact and stable, so that the oxidation rate is obviously reduced, meanwhile, quantitative continuous casting is convenient, and the casting speed is high.
Description
Technical Field
The invention relates to the technical field of high-strength steel, in particular to a heat-resistant alloy steel and a preparation method thereof.
Background
The alloy steel is iron and carbon-free, and is added with other alloy elements, namely alloy steel, and the iron-carbon alloy is formed by adding a proper amount of one or more alloy elements on the basis of common carbon steel, and a proper processing technology is adopted according to different added elements.
However, the existing alloy steel has poor heat resistance, so that the alloy steel can not be normally used at high temperature when in use, and the practical performance of the alloy steel is not strong; meanwhile, the alloy steel is inconvenient to carry out quantitative continuous casting during casting, and the casting speed is slow.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a heat-resistant alloy steel material.
In order to achieve the purpose, the invention adopts the following technical scheme:
a heat-resistant alloy steel comprises the following chemical components in percentage by mass: 0.2 to 0.4 wt% of C, 19 to 25 wt% of Ni, 2.3 to 4.6 wt% of Mn, 1.5 to 2.3 wt% of W, 2 to 4 wt% of Mo, 1.2 to 2.8 wt% of Si, 0.1 to 0.4 wt% of N, 25 to 35 wt% of Cr, 0.02 to 0.15 wt% of P, 0.01 to 0.06 wt% of La, and the balance of Fe.
A preparation method of a heat-resistant alloy steel comprises the following steps;
step one, calculating and weighing the dosage of each raw material according to the composition and the content ratio of each component;
step two, smelting: controlling the temperature in the smelting furnace at 1555-1575 ℃, and then adding the raw materials into the smelting furnace for smelting treatment to obtain molten steel;
step three, casting: further deoxidizing the molten steel obtained in the step two; sedation; casting and molding are carried out through casting equipment, the casting and molding temperature is controlled to 1520 and 1560 ℃, and rapid cooling is carried out after casting;
step four, heat treatment: and cooling the demoulded and molded casting at normal temperature, and then annealing for 12-14h at 950-960 ℃ to obtain the heat-resistant alloy steel after the annealing is finished.
A device for heat-resistant alloy steel materials is casting equipment in the third step and comprises a support frame, wherein an equidistant conveying structure for equidistant conveying is connected to the upper end of the support frame, the equidistant conveying structure comprises a first mounting plate, a first conveying belt, a linear driving assembly, a first pin shaft, a guide rail, a second pin shaft, a rotating plate, a driving plate, an L-shaped sliding plate and a first driving roller, the inner wall of the first mounting plate is connected with the first driving roller in an equidistant rotating mode through a bearing, the outer wall of the first driving roller is connected with the first conveying belt in a rotating mode, the telescopic end of the linear driving assembly is fixedly connected with the L-shaped sliding plate, the inner wall of the L-shaped sliding plate is connected with the guide rail in a limiting sliding mode through a limiting sliding chute, the first pin shaft is fixedly connected to the upper end of the outer wall of the L-shaped sliding plate, the first pin shaft is connected with the driving plate in a rotating mode, and the right end of the driving plate is connected with the second pin shaft in a rotating mode, the second pin shaft is fixedly arranged at the upper end of the side wall of the rotating plate, and the rotating plate is fixedly connected with the outer end of one group of the first driving rollers;
the casting forming die for casting forming is arranged on the outer wall of the first conveying belt at equal intervals and comprises a casting die and a mounting seat, the mounting seat is mounted on the outer wall of the first conveying belt at equal intervals, and the casting die is fixedly mounted on the mounting seat;
the quantitative casting structure comprises supporting legs, a material box, a material distribution cylinder, a discharging straight cylinder, a first driving motor, a first connecting shaft, a rotating roller and a quantitative material distribution groove, the material box is fixedly connected to the top of the supporting legs, the material distribution cylinder is connected to the bottom of the material box, the material distribution cylinder rotates through a bearing and is provided with the first connecting shaft, the rotating roller is fixedly connected between the first connecting shafts, the outer wall of the rotating roller is uniformly provided with the quantitative material distribution groove along the circumferential direction, a group of first connecting shafts are fixedly connected with the output end of the first driving motor, and the discharging straight cylinder is fixedly connected to the bottom of the material distribution cylinder;
the first mounting plate is connected with a knocking structure used for knocking a first conveyor belt at a discharging end, the knocking structure comprises a second driving motor, a cam, a second connecting shaft, a supporting plate, a top plate, a sliding rod, a connecting transverse plate, an arc knocking block and a spring, the output end of the second driving motor is connected with the second connecting shaft, the front end of the second connecting shaft is fixedly connected with the cam, the bottom of the supporting plate is uniformly and fixedly connected with the spring, the bottom of the spring is fixedly provided with the connecting transverse plate, the top of the connecting transverse plate is uniformly and fixedly connected with the sliding rod, the top of the sliding rod penetrates through the supporting plate and is fixedly connected with the top plate, the top plate is arranged under the cam, and the bottom of the connecting transverse plate is uniformly and fixedly connected with the arc knocking block;
first mounting panel below is equipped with the blanking structure who is used for the unloading, blanking structure includes second conveyer belt, second mounting panel and second drive roller, on the second mounting panel fixedly connected with support frame inner wall, second mounting panel inner wall has the second drive roller through the bearing evenly rotated, second drive roller outer wall swing joint has the second conveyer belt, the second drive roller is connected with external rotation driving piece.
Preferably, the linear driving assembly and the guide rail are fixedly arranged on the outer wall of the first mounting plate.
Preferably, the supporting leg is fixedly provided with the top of the first mounting plate.
Preferably, the telescopic end of the linear driving assembly intermittently moves back and forth for one circle to realize that the casting mold intermittently moves to the position right below the blanking straight cylinder.
Preferably, the first connecting shaft is installed on the side wall of the material distributing cylinder, and the servo motor is selected as the first connecting shaft.
Preferably, the second driving motor is installed on the outer wall of the first installation plate, and the support plate is fixedly installed on the inner wall of the first installation plate.
Preferably, the cam intermittently pushes the top plate to move downwards, the top plate intermittently drives the arc-shaped beating block to move downwards through the slide rod and the connecting transverse plate, the arc-shaped beating block beats the lower end of the first conveyor belt, and the cooled heat-resistant alloy steel is beaten out from the casting mold.
Preferably, the inner end of the second conveying belt is flush with the inner end of the connecting transverse plate.
Has the advantages that:
1. according to the invention, the linear driving assembly of the equidistant conveying structure drives the L-shaped sliding plate to intermittently slide back and forth on the guide rail, the L-shaped sliding plate drives the rotating plate to intermittently rotate through the first pin shaft, the guide rail and the second pin shaft, the rotating plate drives the first driving roller to rotate, the first driving roller drives the first conveying belt to intermittently rotate, the first conveying belt intermittently moves the casting mold at the top of the mounting seat to the position right below the blanking straight cylinder, and the casting mold is conveniently intermittently moved to the position right below the quantitative casting structure.
2. The first driving motor of the quantitative casting structure intermittently drives the first connecting shaft to rotate, the first connecting shaft intermittently drives the rotating roller to rotate, the rotating roller intermittently rotates the quantitative distributing groove to the position below the material box, the quantitative molten steel in the material box enters the quantitative distributing groove, the quantitative distributing groove filled with the molten steel is rotated to the downward position, the quantitative molten steel in the quantitative distributing groove falls into the casting mold for quantitative casting, then the equal-interval conveying structure conveys the next group of casting molds to the position below the blanking straight cylinder, and simultaneously, the next group of quantitative distributing groove filled with the molten steel is rotated to the downward position, so that quantitative continuous casting is convenient, and the casting speed is high.
3. According to the invention, after molten steel in the casting mold is cooled and formed, the formed alloy steel is rotated on the second mounting plate by the equidistant conveying structure, the second driving motor of the beating structure drives the second connecting shaft to rotate, the second connecting shaft drives the cam to rotate, the cam pushes the sliding rod to move downwards when contacting with the top plate, the sliding rod drives the arc beating block to move downwards through the connecting transverse plate, the arc beating block beats the first conveying belt, the steel formed in the casting mold is beaten and separated, and the formed steel is convenient to feed.
4. According to the invention, high-temperature heat-resistant Cr, Mo, La and the like are added on the basis of the iron alloy matrix, an alloy oxide film is formed during the preparation method, the alloy oxide film is more compact and stable, so that the oxidation rate is obviously reduced, the high-temperature oxidation resistance is obviously improved, and then the heat treatment is carried out on the smelted crude heat-resistant alloy steel, so that the crystal grains of the heat-resistant alloy steel are refined, the high-temperature heat resistance of the heat-resistant alloy steel is improved, and the practical performance of the alloy steel is improved.
Drawings
FIG. 1 is a flow chart of a preparation method proposed by the present invention;
FIG. 2 is a perspective view of the first embodiment of the present invention;
FIG. 3 is a front view of the proposed structure;
FIG. 4 is a left side view of the proposed structure;
FIG. 5 is a rear view of the proposed structure;
FIG. 6 is a first schematic view of a first mounting plate and a first connection structure thereof according to the present invention;
FIG. 7 is a second schematic view of the first mounting plate and the connection structure thereof according to the present invention;
FIG. 8 is a first cross-sectional view of the present invention taken along the front-to-back plane of symmetry of the first conveyor;
FIG. 9 is a second cross-sectional view of the present invention taken along the front-to-back plane of symmetry of the first conveyor;
FIG. 10 is an enlarged view of the structure at A of FIG. 6 according to the present invention;
fig. 11 is an enlarged view of the structure at B of fig. 9 according to the present invention.
In the figure: 1. the supporting frame 2, the first mounting plate 3, the supporting legs 4, the material box 5, the material distribution cylinder 6, the material distribution straight cylinder 7, the first driving motor 8, the casting die 9, the mounting seat 10, the first conveying belt 11, the second conveying belt 12, the second mounting plate 13, the second driving motor 14, the first connecting shaft 15, the linear driving assembly 16, the first pin shaft 17, the guide rail 18, the second pin shaft 19, the rotating plate 20, the driving plate 21, the L-shaped sliding plate 22, the first driving roller 23, the rotating roller 24, the quantitative material distribution groove 25, the cam 26, the second connecting shaft 27, the supporting plate 28, the top plate 29, the sliding rod 30, the second driving roller 31, the transverse plate 32, the arc-shaped beating block 33 and the spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
referring to fig. 1, the heat-resistant alloy steel comprises the following chemical components in percentage by mass: 0.4 wt% of C, 25 wt% of Ni, 2.3 wt% of Mn, 1.5 wt% of W, 4 wt% of Mo, 2.8 wt% of Si, 0.1 wt% of N, 25 wt% of Cr, 0.02wt% of P, 0.06 wt% of La and the balance of Fe.
A preparation method of a heat-resistant alloy steel comprises the following steps;
step one, calculating and weighing the dosage of each raw material according to the composition and the content ratio of each component;
step two, smelting: controlling the temperature in the smelting furnace at 1575 ℃, and then adding the raw materials into the smelting furnace for smelting treatment to obtain molten steel;
step three, casting: further deoxidizing the molten steel obtained in the step two; sedation; casting and molding are carried out through casting equipment, the casting and molding temperature is controlled at 1560 ℃, and rapid cooling is carried out after casting;
step four, heat treatment: and cooling the demoulded and formed casting at normal temperature, and then annealing for 14h at the annealing temperature of 960 ℃ to obtain the heat-resistant alloy steel after the annealing is finished.
Example 2:
referring to fig. 1, another preferred embodiment of the present invention is different from embodiment 1 in that a heat-resistant alloy steel material comprises the following chemical components by mass percent: 0.2 wt% of C, 19 wt% of Ni, 4.6 wt% of Mn, 2.3 wt% of W, 2 wt% of Mo, 1.2 wt% of Si, 0.4 wt% of N, 35 wt% of Cr, 0.15 wt% of P, 0.01 wt% of La and the balance of Fe.
A preparation method of a heat-resistant alloy steel comprises the following steps;
step one, calculating and weighing the dosage of each raw material according to the composition and the content ratio of each component;
step two, smelting: controlling the temperature in the smelting furnace at 1555 ℃, and then adding the raw materials into the smelting furnace for smelting treatment to obtain molten steel;
step three, casting: further deoxidizing the molten steel obtained in the step two; sedation; casting and molding through casting equipment, controlling the casting and molding temperature to 1520 ℃, and rapidly cooling after casting;
step four, heat treatment: and cooling the demoulded and formed casting at normal temperature, and then annealing for 12 hours at 950 ℃ to obtain the heat-resistant alloy steel after annealing.
The high-temperature heat-resistant Cr, Mo, La and the like are added on the basis of the iron alloy matrix, an alloy oxide film is formed in the preparation method, the alloy oxide film is more compact and stable, so that the oxidation rate is obviously reduced, the high-temperature oxidation resistance is obviously improved, and then the smelted coarse heat-resistant alloy steel is subjected to heat treatment, so that the crystal grains of the heat-resistant alloy steel are refined, the high-temperature heat resistance of the heat-resistant alloy steel is improved, and the practical performance of the alloy steel is improved.
Example 3:
referring to fig. 2-11, a device for heat-resistant alloy steel materials is a casting device with a third step, and comprises a support frame 1, wherein the upper end of the support frame 1 is connected with an equidistant conveying structure for equidistant conveying, the equidistant conveying structure comprises a first mounting plate 2, a first conveyor belt 10, a linear driving assembly 15, a first pin shaft 16, a guide rail 17, a second pin shaft 18, a rotating plate 19, a driving plate 20, an L-shaped sliding plate 21 and a first driving roller 22, the inner wall of the first mounting plate 2 is connected with the first driving roller 22 through a bearing in an equidistant manner, the outer wall of the first driving roller 22 is connected with the first conveyor belt 10 in a rotating manner, the telescopic end of the linear driving assembly 15 is fixedly connected with an L-shaped sliding plate 21, the inner wall of the L-shaped sliding plate 21 is connected with the guide rail 17 through a limiting sliding groove, the upper end of the outer wall of the L-shaped sliding plate 21 is fixedly connected with the first pin shaft 16, the first pin shaft 16 is connected with the driving plate 20 in a rotating manner, the right end of the driving plate 20 is rotatably connected with a second pin shaft 18, the second pin shaft 18 is fixedly arranged at the upper end of the side wall of the rotating plate 19, the rotating plate 19 is fixedly connected with the outer ends of one group of first driving rollers 22, and the linear driving assembly 15 and the guide rail 17 are fixedly arranged on the outer wall of the first mounting plate 2;
the linear driving assembly 15 of the equidistant conveying structure drives the L-shaped sliding plate 21 to intermittently slide back and forth on the guide rail 17, the L-shaped sliding plate 21 drives the rotating plate 19 to intermittently rotate through the first pin shaft 16, the guide rail 17 and the second pin shaft 18, the rotating plate 19 drives the first driving roller 22 to rotate, the first driving roller 22 drives the first conveying belt 10 to intermittently rotate, the casting mold 8 at the top of the mounting seat 9 is intermittently moved to the position under the blanking straight cylinder 6 through the first conveying belt 10, and the casting mold 8 is conveniently intermittently moved to the position under the quantitative casting structure.
Casting forming molds for casting forming are arranged on the outer wall of the first conveyor belt 10 at equal intervals, each casting forming mold comprises a casting mold 8 and a mounting seat 9, the mounting seats 9 are mounted on the outer wall of the first conveyor belt 10 at equal intervals, and the casting molds 8 are fixedly mounted on the mounting seats 9;
the top of the first mounting plate 2 is connected with a quantitative casting structure for quantitative casting, the quantitative casting structure comprises supporting legs 3, a material box 4, a material distribution cylinder 5 and a blanking straight cylinder 6, the quantitative material distributing device comprises a first driving motor 7, first connecting shafts 14, rotating rollers 23 and quantitative material distributing grooves 24, wherein the tops of supporting legs 3 are fixedly connected with a material box 4, the bottom of the material box 4 is connected with a material distributing cylinder 5, the material distributing cylinder 5 is provided with the first connecting shafts 14 in a rotating mode through bearings, the rotating rollers 23 are fixedly connected between the first connecting shafts 14, the quantitative material distributing grooves 24 are uniformly formed in the outer wall of the rotating rollers 23 along the circumferential direction, the first connecting shafts 14 in a group are fixedly connected with the output end of the first driving motor 7, the bottoms of the material distributing cylinders 5 are fixedly connected with a material discharging straight cylinder 6, the tops of first mounting plates 2 are fixedly mounted on the supporting legs 3, the first connecting shafts 14 are mounted on the side walls of the material distributing cylinder 5, and the first connecting shafts 14 are servo motors;
7 intermittent type nature drive first connecting axle 14 of driving motor of ration casting structure rotate, 14 intermittent type nature of first connecting axle will drive rotor roll 23 and rotate, rotor roll 23 intermittent type nature divides the silo 24 to rotate to workbin 4 below with the ration, quantitative molten steel enters into in the ration divides the silo 24 in the workbin 4, the ration that will be equipped with the molten steel divides the silo 24 to rotate to setting down again, quantitative casting is carried out in the quantitative molten steel that divides the silo 24 interior ration falls into casting die utensil 8, then, equidistant transport structure carries next a set of casting die utensil 8 to the straight section of thick bamboo 6 below of unloading, simultaneously, divide the silo 24 to rotate to setting down with the ration that next set of molten steel is equipped with, conveniently carry out ration continuous casting, casting speed is fast.
7 intermittent type nature drive first connecting axle 14 of driving motor of ration casting structure rotate, 14 intermittent type nature of first connecting axle will drive rotor roll 23 and rotate, rotor roll 23 intermittent type nature divides the silo 24 to rotate to workbin 4 below with the ration, quantitative molten steel enters into in the ration divides the silo 24 in the workbin 4, the ration that will be equipped with the molten steel divides the silo 24 to rotate to setting down again, quantitative casting is carried out in the quantitative molten steel that divides the silo 24 interior ration falls into casting die utensil 8, then, equidistant transport structure carries next a set of casting die utensil 8 to the straight section of thick bamboo 6 below of unloading, simultaneously, divide the silo 24 to rotate to setting down with the ration that next set of molten steel is equipped with, conveniently carry out ration continuous casting, casting speed is fast.
The first mounting plate 2 is connected with a tapping structure at the discharging end for tapping the first conveyor belt 10, the tapping structure comprises a second driving motor 13, a cam 25, a second connecting shaft 26, a supporting plate 27, a top plate 28, a slide bar 29, a connecting transverse plate 31, an arc-shaped tapping block 32 and a spring 33, the output end of the second driving motor 13 is connected with the second connecting shaft 26, the cam 25 is fixedly connected with the front end of the second connecting shaft 26, the spring 33 is uniformly and fixedly connected with the bottom of the supporting plate 27, the connecting transverse plate 31 is fixedly connected with the bottom of the spring 33, the slide bar 29 is uniformly and fixedly connected with the top plate 29 after penetrating through the supporting plate 27, the top plate 28 is arranged under the cam 25, the arc-shaped tapping block 32 is uniformly and fixedly connected with the bottom of the connecting transverse plate 31, the telescopic end of the linear driving assembly 15 moves back and forth for one circle to realize that the casting mold 8 intermittently moves to the lower part of the discharging straight cylinder 6, the second driving motor 13 is installed at the outer wall of the first installation plate 2, the supporting plate 27 is fixedly installed on the inner wall of the first installation plate 2, the cam 25 intermittently pushes the top plate 28 downwards to move downwards, the top plate 28 intermittently drives the arc-shaped beating block 32 downwards to move through the slide rod 29 and the connecting transverse plate 31, the arc-shaped beating block 32 beats the lower end of the first conveyor belt 10, the cooled heat-resistant alloy steel is beaten out from the casting mold 8,
2 below of first mounting panel are equipped with the blanking structure who is used for the unloading, blanking structure includes second conveyer belt 11, second mounting panel 12 and second drive roller 30, on 1 inner wall of second mounting panel 12 fixedly connected with support frame, there is second drive roller 30 second mounting panel 12 inner wall through the bearing even rotation, second drive roller 30 outer wall swing joint has second conveyer belt 11, 11 inner ends of second conveyer belt flush with the 31 inner ends of connection diaphragm, second drive roller 30 rotates the driving piece with the external world and is connected.
The working principle is as follows: molten steel is added into a material box 4 through a liquid conveying pipe, a linear driving assembly 15 of an equidistant conveying structure drives an L-shaped sliding plate 21 to intermittently slide back and forth on a guide rail 17, the L-shaped sliding plate 21 drives a rotating plate 19 to intermittently rotate through a first pin shaft 16, the guide rail 17 and a second pin shaft 18, the rotating plate 19 drives a first driving roller 22 to rotate, the first driving roller 22 drives a first conveying belt 10 to intermittently rotate, the first conveying belt 10 intermittently moves a casting mold 8 at the top of an installation seat 9 to be under a blanking straight cylinder 6, and the casting mold 8 is conveniently intermittently moved to be under a quantitative casting structure; then a first driving motor 7 of the quantitative casting structure intermittently drives a first connecting shaft 14 to rotate, the first connecting shaft 14 intermittently drives a rotating roller 23 to rotate, the rotating roller 23 intermittently rotates a quantitative distributing groove 24 to the position below a material box 4, quantitative molten steel in the material box 4 enters the quantitative distributing groove 24, the quantitative distributing groove 24 filled with the molten steel is rotated to be arranged downwards, the quantitative molten steel in the quantitative distributing groove 24 falls into a casting mold 8 for quantitative casting, then a next group of casting molds 8 are conveyed to the position below a blanking straight cylinder 6 by an equidistant conveying structure, and meanwhile, the next group of quantitative distributing groove 24 filled with the molten steel is rotated to be arranged downwards, so that quantitative continuous casting is facilitated, and the casting speed is high; after molten steel in the casting mold 8 is cooled and formed, the formed alloy steel is rotated on the second mounting plate 12 by the equidistant conveying structure, the second driving motor 13 of the rapping structure drives the second connecting shaft 26 to rotate, the second connecting shaft 26 drives the cam 25 to rotate, the cam 25 is contacted with the top plate 28 to push the sliding rod 29 to move downwards, the sliding rod 29 drives the arc-shaped rapping block 32 to move downwards through the connecting transverse plate 31, the arc-shaped rapping block 32 raps the first conveying belt 10, the formed steel in the casting mold 8 is rapped and separated, and discharging of the formed steel is facilitated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. A preparation method of heat-resistant alloy steel adopts a preparation device for preparation, and is characterized by comprising the following steps;
step one, weighing C, Ni, Mn, W, Mo, Si, N, Cr, P, La and Fe according to the composition and the content ratio of each component;
step two, smelting: controlling the temperature in the smelting furnace at 1555-1575 ℃, and then adding the raw materials into the smelting furnace for smelting treatment to obtain molten steel;
step three, casting: further deoxidizing the molten steel obtained in the step two; sedation; casting and molding are carried out through casting equipment, the casting and molding temperature is controlled to 1520 and 1560 ℃, and rapid cooling is carried out after casting;
step four, heat treatment: and cooling the demoulded and formed casting at normal temperature, and then carrying out annealing treatment for 12-14h, wherein the annealing temperature is controlled at 950-960 ℃, and the heat-resistant alloy steel is obtained after the annealing is finished.
2. A device for heat-resistant alloy steel according to claim 1, which is casting equipment with a third step, and comprises a support frame (1), wherein the upper end of the support frame (1) is connected with an equidistant conveying structure for equidistant conveying, the equidistant conveying structure comprises a first mounting plate (2), a first conveying belt (10), a linear driving assembly (15), a first pin shaft (16), a guide rail (17), a second pin shaft (18), a rotating plate (19), a driving plate (20), an L-shaped sliding plate (21) and a first driving roller (22), the inner wall of the first mounting plate (2) is connected with the first driving roller (22) in an equidistant manner through a bearing, the outer wall of the first driving roller (22) is connected with the first conveying belt (10) in a rotatable manner, and the linear driving assembly (15) is fixedly connected with the L-shaped sliding plate (21) in a telescopic manner, the inner wall of the L-shaped sliding plate (21) is in limited sliding connection with a guide rail (17) through a limiting sliding groove, the upper end of the outer wall of the L-shaped sliding plate (21) is fixedly connected with a first pin shaft (16), the first pin shaft (16) is rotatably connected with a driving plate (20), the right end of the driving plate (20) is rotatably connected with a second pin shaft (18), the second pin shaft (18) is fixedly installed at the upper end of the side wall of a rotating plate (19), and the rotating plate (19) is fixedly connected with the outer end of one group of first driving rollers (22);
casting forming molds for casting forming are arranged on the outer wall of the first conveying belt (10) at equal intervals, each casting forming mold comprises a casting mold (8) and a mounting seat (9), the mounting seats (9) are mounted on the outer wall of the first conveying belt (10) at equal intervals, and the casting molds (8) are fixedly mounted on the mounting seats (9);
the top of the first mounting plate (2) is connected with a quantitative casting structure for quantitative casting, the quantitative casting structure comprises supporting legs (3), a material box (4), a material distribution cylinder (5), a discharging straight cylinder (6), a first driving motor (7), a first connecting shaft (14), a rotating roller (23) and a quantitative material distribution groove (24), the top of the supporting leg (3) is fixedly connected with a material box (4), the bottom of the material box (4) is connected with a material distributing cylinder (5), the material-separating cylinder (5) is provided with a first connecting shaft (14) through a bearing in a rotating way, a rotating roller (23) is fixedly connected between the first connecting shafts (14), quantitative material distributing grooves (24) are uniformly formed in the outer wall of the rotating roller (23) along the circumferential direction, a group of the first connecting shafts (14) is fixedly connected with the output end of a first driving motor (7), the bottom of the material distribution cylinder (5) is fixedly connected with a blanking straight cylinder (6);
the first mounting plate (2) is connected with a beating structure used for beating the first conveying belt (10) at a discharging end, the beating structure comprises a second driving motor (13), a cam (25), a second connecting shaft (26), a supporting plate (27), a top plate (28), a sliding rod (29), a connecting transverse plate (31), an arc beating block (32) and a spring (33), the output end of the second driving motor (13) is connected with the second connecting shaft (26), the front end of the second connecting shaft (26) is fixedly connected with the cam (25), the bottom of the supporting plate (27) is uniformly and fixedly connected with the spring (33), the bottom of the spring (33) is fixedly connected with the connecting transverse plate (31), the top of the connecting transverse plate (31) is uniformly and fixedly connected with the sliding rod (29), the top of the sliding rod (29) penetrates through the supporting plate (27) and then is fixedly connected with the top plate (28), and the top plate (28) is arranged under the cam (25), the bottom of the connecting transverse plate (31) is uniformly and fixedly connected with arc-shaped beating blocks (32);
first mounting panel (2) below is equipped with the blanking structure who is used for the unloading, blanking structure includes second conveyer belt (11), second mounting panel (12) and second drive roller (30), on second mounting panel (12) fixedly connected with support frame (1) inner wall, second mounting panel (12) inner wall has second drive roller (30) through the bearing uniform rotation, second drive roller (30) outer wall swing joint has second conveyer belt (11), second drive roller (30) rotate the driving piece with the external world and are connected.
3. A heat resistant alloy steel apparatus according to claim 2, wherein the linear drive assembly (15) and the guide rail (17) are fixedly mounted on the outer wall of the first mounting plate (2).
4. A device of heat resistant alloy steel according to claim 3, wherein the support leg (3) is fixedly mounted on top of the first mounting plate (2).
5. The apparatus of claim 2, wherein the linear driving assembly (15) intermittently moves back and forth for one circle to intermittently move the casting mold (8) to a position right below the blanking straight cylinder (6).
6. The apparatus of claim 2, wherein the first connecting shaft (14) is mounted on a side wall of the material separating cylinder (5), and the first connecting shaft (14) is a servo motor.
7. The device of one kind of heat-resisting alloy steel material of claim 6, characterized by, the said second driving motor (13) is installed at first mounting panel (2) outer wall, the said back plate (27) is fixedly installed on first mounting panel (2) inner wall.
8. The device for the heat-resistant alloy steel material according to claim 7, wherein the cam (25) intermittently pushes the top plate (28) downwards, the top plate (28) intermittently drives the arc-shaped beating block (32) downwards through the slide rod (29) and the connecting transverse plate (31), and the arc-shaped beating block (32) beats the lower end of the first conveyor belt (10) to beat the cooled heat-resistant alloy steel material out of the casting mold (8).
9. Device according to claim 8, characterized in that the inner end of the second conveyor belt (11) is flush with the inner end of the connecting cross plate (31).
10. The preparation method of the heat-resistant alloy steel material as claimed in claim 1, wherein the heat-resistant alloy steel material comprises the following chemical components in percentage by mass: 0.2 to 0.4 wt% of C, 19 to 25 wt% of Ni, 2.3 to 4.6 wt% of Mn, 1.5 to 2.3 wt% of W, 2 to 4 wt% of Mo, 1.2 to 2.8 wt% of Si, 0.1 to 0.4 wt% of N, 25 to 35 wt% of Cr, 0.02 to 0.15 wt% of P, 0.01 to 0.06 wt% of La, and the balance of Fe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210104111.1A CN114472870A (en) | 2022-01-28 | 2022-01-28 | Heat-resistant alloy steel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210104111.1A CN114472870A (en) | 2022-01-28 | 2022-01-28 | Heat-resistant alloy steel and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308015A (en) * | 2009-02-16 | 2012-01-04 | 住友金属工业株式会社 | Method for manufacturing metal pipe |
| CN112371964A (en) * | 2020-10-26 | 2021-02-19 | 肇庆中彩机电技术研发有限公司 | Intelligent demolding continuous casting method for steel plate manufacturing |
| CN212917551U (en) * | 2020-05-29 | 2021-04-09 | 新邵县鸿祥废旧金属加工有限公司 | Aluminum ingot conveying device |
| CN214920459U (en) * | 2021-07-16 | 2021-11-30 | 大田县坤源机械工贸有限公司 | Iron casting device |
| CN215356165U (en) * | 2021-07-01 | 2021-12-31 | 青岛泰新机械有限公司 | Steel casting continuous casting machine |
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2022
- 2022-01-28 CN CN202210104111.1A patent/CN114472870A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308015A (en) * | 2009-02-16 | 2012-01-04 | 住友金属工业株式会社 | Method for manufacturing metal pipe |
| CN212917551U (en) * | 2020-05-29 | 2021-04-09 | 新邵县鸿祥废旧金属加工有限公司 | Aluminum ingot conveying device |
| CN112371964A (en) * | 2020-10-26 | 2021-02-19 | 肇庆中彩机电技术研发有限公司 | Intelligent demolding continuous casting method for steel plate manufacturing |
| CN215356165U (en) * | 2021-07-01 | 2021-12-31 | 青岛泰新机械有限公司 | Steel casting continuous casting machine |
| CN214920459U (en) * | 2021-07-16 | 2021-11-30 | 大田县坤源机械工贸有限公司 | Iron casting device |
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