CN114350912A - High-strength high-plasticity high-manganese-iron alloy plate and preparation method thereof - Google Patents
High-strength high-plasticity high-manganese-iron alloy plate and preparation method thereof Download PDFInfo
- Publication number
- CN114350912A CN114350912A CN202210021033.9A CN202210021033A CN114350912A CN 114350912 A CN114350912 A CN 114350912A CN 202210021033 A CN202210021033 A CN 202210021033A CN 114350912 A CN114350912 A CN 114350912A
- Authority
- CN
- China
- Prior art keywords
- manganese
- iron alloy
- alloy plate
- oil tank
- plasticity
- 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.)
- Pending
Links
- 229910000640 Fe alloy Inorganic materials 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 75
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 66
- 229910000616 Ferromanganese Inorganic materials 0.000 claims abstract description 43
- 238000005096 rolling process Methods 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 33
- 238000010791 quenching Methods 0.000 claims abstract description 24
- 230000000171 quenching effect Effects 0.000 claims abstract description 24
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 21
- 239000011572 manganese Substances 0.000 claims abstract description 21
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 238000004321 preservation Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 101
- 239000010720 hydraulic oil Substances 0.000 claims description 19
- 238000005482 strain hardening Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 2
- 229910000734 martensite Inorganic materials 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 description 7
- 229910001021 Ferroalloy Inorganic materials 0.000 description 6
- 230000009471 action Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
The invention belongs to the technical field of high-ferromanganese alloy plate preparation, and particularly relates to a high-strength high-plasticity high-ferromanganese alloy plate and a preparation method thereof, wherein the method comprises the following steps: heating the high-ferromanganese alloy block material at 900 ℃, preserving heat for 2 hours, and performing oil quenching treatment to obtain a coarse-grained high-ferromanganese alloy material with a homogenized structure; processing the coarse-grained high manganese iron alloy plate processed in the step S1 in a linear cutting mode; placing the high-manganese iron alloy plate cut in the step S2 into an austenite box type resistance furnace for heating and heat preservation; performing multi-pass warm rolling treatment on the high-manganese iron alloy subjected to the heat treatment in the step S3; the high ferromanganese is processed by adopting a large-strain warm rolling method, the high ferromanganese is heated to a stable single-phase austenite structure state, and then rolling is carried out by applying a large strain amount, so that the generation of brittle HCP (host-control-phase) -martensite in the structure during rolling at room temperature is avoided.
Description
Technical Field
The invention belongs to the technical field of high-ferromanganese alloy plate preparation, and particularly relates to a high-strength high-plasticity high-ferromanganese alloy plate and a preparation method thereof.
Background
In order to meet the stricter exhaust emission regulations, the weight reduction of automobiles is one of the important solutions for reducing oil consumption, so that the development of a metal material with high strength and high elongation rate for automobile body parts to reduce the weight of the automobile body is urgently needed in the industry, and a high ferromanganese alloy is an important candidate material for realizing the weight reduction of the automobiles.
The high manganese iron alloy can obtain an austenite structure through manganese alloying, and has good comprehensive properties such as strength, plasticity, work hardening property, impact resistance safety and the like. The high manganese iron alloy has important application prospect in the field of automobiles, and also shows wide application potential in the fields of low-temperature containers, wear-resistant parts, vibration-damping parts, overhead buildings, bridges and the like.
However, the high ferromanganese alloy generates brittle HCP phase epsilon-martensite in the structure during rolling at room temperature, and the obtained plate is easy to fracture early in the subsequent tensile mechanical test and service process. Therefore, the production of high-strength steel sheets of high ferromanganese alloy cannot directly utilize the conventional cold rolling method. In order to improve the yield strength of the high-manganese-iron alloy and produce a high-strength steel plate, the problem of the generation of brittle HCP (hydrogen peroxide) phase epsilon-martensite in the rolling process must be avoided; therefore, the invention provides a high-strength high-plasticity high-manganese-iron alloy plate and a preparation method thereof.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problem that early fracture is easy to occur when a high-strength high-manganese ferroalloy steel plate is prepared by utilizing a traditional cold rolling mode in the prior art, the invention provides a high-strength high-plasticity high-manganese ferroalloy plate and a preparation method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: a preparation method of a high-strength high-plasticity high-manganese-iron alloy plate comprises the following steps:
s1: heating the high-ferromanganese alloy block material at 900 ℃, preserving heat for 2 hours, and performing oil quenching treatment to obtain a coarse-grained high-ferromanganese alloy material with a homogenized structure;
s2: processing the coarse-grained high manganese iron alloy plate processed in the step S1 in a linear cutting mode;
s3: placing the high-manganese iron alloy plate cut in the step S2 into an austenite box type resistance furnace for heating and heat preservation;
s4: performing multi-pass warm rolling treatment on the high-manganese iron alloy subjected to the heat treatment in the step S3;
s5: and (4) performing air cooling treatment on the plate treated in the step S4 to prepare a high-ferromanganese alloy plate with high strength, high elongation and high work hardening rate by deformation warm rolling.
Preferably, in S2, the initial thickness of the high-ferromanganese alloy sheet material after wire-cutting processing is 10 ± 1 mm.
Preferably, in the S3, the stable temperature range of the austenite box type resistance furnace is 350-550 ℃, and the heat preservation time is controlled to be 10-30 minutes.
Preferably, in the step S4, the warm rolling temperature range is 350-550 ℃, the heat preservation time before each warm rolling pass is 3-5 minutes, the rolling reduction of each pass is 1-10%, and the total rolling amount is 50-90%.
Preferably, in S1, the oil quenching refers to that the high-manganese iron alloy material is placed in an oil tank to be immersed in oil, so that the surface of the high-manganese iron alloy material is fully immersed in oil, thereby achieving the purpose of oil quenching.
Preferably, the surface of the oil tank is movably connected with a connecting assembly, and the bottom end of the connecting assembly is movably connected with a leakage net; the leakage net is arranged in the oil tank;
the connecting component consists of a connecting plate, a hydraulic oil cylinder and a connecting block; the connecting plate is connected to the surface of the oil tank in a sliding mode, and the connecting block is correspondingly connected to the side wall of the oil tank in a sliding mode; the hydraulic cylinder rigid coupling is at the top of connecting plate, just hydraulic cylinder's bottom articulates on leaking the net lateral wall, drives when leaking the net and reacing the other end of oil tank at the connecting plate, is close to the one end lifting of conveyer belt, and keeps away from the one end of conveyer belt and pushes down for it is the trend of downward sloping to leak the net, and then makes the alloy body in leaking the net can roll off under the effect of gravity and leak the net, realizes the purpose that the oil quenches and handles.
Preferably, a sliding groove is formed in the surface of the oil tank corresponding to the connecting assembly, and a limiting groove is formed in the side wall of the sliding groove corresponding to the connecting block; a straight rod is fixedly connected between the side walls of the two ends of the sliding groove, and the connecting block is connected to the straight rod in a sliding manner; the connecting plate is connected in the sliding groove in a sliding manner; the side wall of the outer end of the oil tank is fixedly connected with symmetrically arranged connecting seats, and threaded rods are rotatably connected in the connecting seats; the middle part of the threaded rod penetrates through the connecting block, and a ball nut is correspondingly arranged inside the connecting block; the ball nut is in threaded connection with the threaded rod, when the connecting block and the oil tank slide relatively, the connecting block is in contact with the straight rod in the sliding groove and slides on the straight rod, the connecting block moves to drive the threaded rod to rotate through an external driving motor, and the connecting block can be driven to move on the oil tank by utilizing the threaded rod to rotate relative to the ball nut in the connecting block, so that the connecting block is driven to slide on the oil tank.
Preferably, one end of the oil tank is provided with a conveyor belt, and the conveyor belt is movably connected with an alloy body; the side walls of the two ends of the leakage net are fixedly connected with a hinge seat; the bottom end of the hydraulic oil cylinder is hinged on the hinge seat; the through holes with the same distance are formed in the side walls of the two ends of the leakage net, the alloy body slides in the leakage net and is soaked in oil liquid under the action of inertia force provided by the conveying belt and gravity of the alloy body when moving to one end of the oil tank along with the movement of the conveying belt, and therefore oil quenching treatment is achieved.
A high-strength high-plasticity high-ferromanganese alloy sheet prepared by the method for preparing a high-strength high-plasticity high-ferromanganese alloy sheet according to any one of claims 1 to 5.
The invention has the technical effects and advantages that:
1. according to the preparation method of the high-strength high-plasticity high-ferromanganese alloy plate, the high-ferromanganese alloy is processed by adopting a large-strain warm rolling method, the high-ferromanganese alloy is heated to a stable single-phase austenite structure state, and then rolling is carried out by applying a large strain amount, so that the generation of brittle HCP (host-control-phase) -epsilon-martensite in the structure during rolling at room temperature is avoided.
2. According to the preparation method of the high-strength high-plasticity high-ferromanganese alloy plate, the connecting assembly is arranged, when the alloy body moves onto the drain net along with the conveyor belt, after oil quenching treatment, the alloy body can be driven to slide on two sides of the oil tank by the connecting plate indirectly hinged with the drain net until the alloy body moves to one end, far away from the conveyor belt, of the oil tank, the drain net is inclined by the difference of the expansion and contraction amounts of the two groups of hydraulic oil cylinders, so that the alloy in the drain net can be discharged under the action of gravity, and the efficiency of the oil quenching treatment is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a production process in the present invention;
FIG. 2 is a 50% warm rolled Fe30Mn microstructure according to example 1 of the present invention;
FIG. 3 is a graph of engineering stress-strain curves for 50% warm rolled Fe30Mn of example 1 and coarse crystalline Fe30Mn of comparative example 1 in accordance with the present invention;
FIG. 4 is a 90% warm rolled Fe30Mn microstructure according to example 2 of the present invention.
FIG. 5 is a graph of engineering stress-strain curves for 90% warm rolled Fe30Mn of example 2 of the present invention versus coarse crystalline Fe30Mn of comparative example 2;
FIG. 6 is a perspective view of the connection assembly of the present invention;
FIG. 7 is a top view of the connection assembly of the present invention;
FIG. 8 is a side view of the connecting assembly of the present invention;
FIG. 9 is a perspective view of a screen according to the present invention;
in the figure: 1. a conveyor belt; 11. an alloy body; 2. a connecting plate; 21. a hydraulic cylinder; 22. connecting blocks; 3. an oil tank; 31. a chute; 32. a straight rod; 4. a connecting seat; 41. a threaded rod; 5. a leakage net; 51. a hinged seat; 52. and a through hole.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The first embodiment is as follows:
as shown in fig. 1 to 9, the method for preparing a high-strength high-plasticity high-ferromanganese alloy sheet according to the present invention comprises the following steps:
s1: heating the high-ferromanganese alloy block material at 900 ℃, preserving heat for 2 hours, and performing oil quenching treatment to obtain a coarse-grained high-ferromanganese alloy material with a homogenized structure;
s2: processing the coarse-grained high manganese iron alloy plate processed in the step S1 in a linear cutting mode;
s3: placing the high-manganese iron alloy plate cut in the step S2 into an austenite box type resistance furnace for heating and heat preservation;
s4: performing multi-pass warm rolling treatment on the high-manganese iron alloy subjected to the heat treatment in the step S3;
s5: and (4) performing air cooling treatment on the plate treated in the step S4 to prepare a high-ferromanganese alloy plate with high strength, high elongation and high work hardening rate by deformation warm rolling.
In one embodiment of the present invention, in S2, the high ferromanganese alloy sheet material after wire cutting is 10mm in initial thickness.
In an embodiment of the present invention, in S3, the stable temperature range of the austenite box type resistance furnace is 450 ℃, and the holding time is controlled to be 10 minutes.
In an embodiment of the present invention, in S4, the warm rolling temperature interval is 450 ℃, the holding time before each pass of warm rolling is 3 minutes, and the total rolling amount is 50%.
In an embodiment of the present invention, in S1, the oil quenching process refers to placing the high-manganese ferroalloy material into an oil tank to be immersed in oil, so that the surface of the high-manganese ferroalloy material is sufficiently immersed in oil, thereby achieving the purpose of oil quenching.
A high-strength high-plasticity high-ferromanganese alloy sheet prepared by the method for preparing a high-strength high-plasticity high-ferromanganese alloy sheet according to any one of claims 1 to 5.
In this example, the 50% warm rolled Fe30Mn plate obtained by the above method had a yield strength of 317MPa, a tensile strength of 683MPa, and a uniform elongation of 30.2%.
Comparative example one:
this comparative example was a uniaxial tensile test using a coarse crystalline (0% rolling amount) Fe30Mn sheet, resulting in a coarse crystalline Fe30Mn sheet with a yield strength of 139MPa, a tensile strength of 548MPa, and a uniform elongation of 51.6%.
As an embodiment of the invention, the surface of the oil tank 3 is movably connected with a connecting assembly, and the bottom end of the connecting assembly is movably connected with a leakage net 5; the leakage net 5 is arranged in the oil tank 3;
the connecting component consists of a connecting plate 2, a hydraulic oil cylinder 21 and a connecting block 22; the connecting plate 2 is connected to the surface of the oil tank 3 in a sliding manner, and the connecting block 22 is correspondingly connected to the side wall of the oil tank 3 in a sliding manner; the hydraulic oil cylinder 21 is fixedly connected to the top of the connecting plate 2, and the bottom of the hydraulic oil cylinder 21 is hinged to the side wall of the drain net 5.
Specifically, when the connecting assembly works, the connecting plate 2 can slide on the surface of the oil tank 3, and simultaneously drives the alloy body 11 sliding to the bottom of the leakage net 5 to move in oil liquid in the oil tank 3, so that the alloy body 11 can be fully subjected to oil quenching treatment, after the alloy body 11 is fully subjected to oil quenching, the connecting plate 2 is used for sliding on the oil tank 3, so that the alloy body 11 can slide from one end of the oil tank 3 to the other end under the bearing of the leakage net 5, and the end far away from the conveyor belt 1 is acted by a hydraulic oil cylinder 21 on the connecting plate 2, so that the leakage net 5 is obliquely arranged, wherein two groups of hydraulic oil cylinders 21 are arranged on each group of connecting plates 2, when the connecting plate 2 drives the leakage net 5 to reach the other end of the oil tank 3, one end close to the conveyor belt 1 is lifted, and the end far away from the conveyor belt 1 is pressed downwards, so that the leakage net 5 tends to incline downwards, and further, the alloy body 11 in the drain net 5 can slide out of the drain net 5 under the action of gravity, so that the purpose of oil quenching treatment is realized.
As an embodiment of the present invention, a sliding groove 31 is formed on the surface of the oil tank 3 corresponding to the connecting assembly, and a position on the side wall of the sliding groove 31 corresponding to the connecting block 22 is formed with a limiting groove; a straight rod 32 is fixedly connected between the side walls of the two ends of the sliding groove 31, and the connecting block 22 is slidably connected to the straight rod 32; the connecting plate 2 is connected in the sliding groove 31 in a sliding way; the outer end side wall of the oil tank 3 is fixedly connected with symmetrically arranged connecting seats 4, and threaded rods 41 are rotatably connected in the connecting seats 4; the middle part of the threaded rod 41 penetrates through the connecting block 22, and a ball nut is correspondingly arranged inside the connecting block 22; the ball nut is screwed to the threaded rod 41.
Specifically, connecting plate 2 is when sliding, connecting plate 2 will slide in the spout 31 at oil tank 3 both ends, and simultaneously, connecting plate 2 slides in-process, the connecting block 22 at its both ends will slide in the spacing groove on oil tank 3, and when connecting block 22 produced relative slip with oil tank 3, connecting block 22 will contact with straight-bar 32 in spout 31, and slide on straight-bar 32, wherein the removal of connecting plate 2 drives threaded rod 41 through external driving motor and rotates, utilize threaded rod 41 and the inside ball nut of connecting block 22 to produce relative screw thread and rotate and can drive connecting block 22 activity on oil tank 3, thereby realize driving connecting plate 2 and slide on oil tank 3.
As an embodiment of the invention, one end of the oil tank 3 is provided with a conveyor belt 1, and an alloy body 11 is movably connected to the conveyor belt 1; the side walls of the two ends of the leakage net 5 are fixedly connected with a hinge seat 51; the bottom end of the hydraulic oil cylinder 21 is hinged on the hinge seat 51; the side walls of the two ends of the leakage net 5 are provided with a plurality of groups of through holes 52 with equal intervals.
Specifically, the conveyor belt 1 arranged at one end of the oil tank 3 is used for conveying the alloy body 11, and when the alloy body 11 moves to one end of the oil tank 3 along with the movement of the conveyor belt 1, the alloy body slides in the leakage net 5 and is soaked in oil under the action of the inertia force provided by the conveyor belt 1 and the gravity of the alloy body 11, so that oil quenching treatment is realized.
Example two:
as shown in fig. 1 to 9, the method for preparing a high-strength high-plasticity high-ferromanganese alloy sheet according to the present invention comprises the following steps:
s1: heating the high-ferromanganese alloy block material at 900 ℃, preserving heat for 2 hours, and performing oil quenching treatment to obtain a coarse-grained high-ferromanganese alloy material with a homogenized structure;
s2: processing the coarse-grained high manganese iron alloy plate processed in the step S1 in a linear cutting mode;
s3: placing the high-manganese iron alloy plate cut in the step S2 into an austenite box type resistance furnace for heating and heat preservation;
s4: performing multi-pass warm rolling treatment on the high-manganese iron alloy subjected to the heat treatment in the step S3;
s5: and (4) performing air cooling treatment on the plate treated in the step S4 to prepare a high-ferromanganese alloy plate with high strength, high elongation and high work hardening rate by deformation warm rolling.
In one embodiment of the present invention, in S2, the high ferromanganese alloy sheet material after wire cutting is 10mm in initial thickness.
In an embodiment of the present invention, in S3, the stable temperature range of the austenite box type resistance furnace is 450 ℃, and the holding time is controlled to be 30 minutes.
In an embodiment of the present invention, in S4, the warm rolling temperature interval is 450 ℃, the holding time before each pass of warm rolling is 5 minutes, and the total rolling amount is 90%.
In an embodiment of the present invention, in S1, the oil quenching process refers to placing the high-manganese ferroalloy material into an oil tank to be immersed in oil, so that the surface of the high-manganese ferroalloy material is sufficiently immersed in oil, thereby achieving the purpose of oil quenching.
A high-strength high-plasticity high-ferromanganese alloy sheet prepared by the method for preparing a high-strength high-plasticity high-ferromanganese alloy sheet according to any one of claims 1 to 5.
In this example, the 90% rolling yield Fe30Mn plate obtained by the above method had a yield strength of 370MPa, a tensile strength of 772MPa, and a uniform elongation of 12.4%.
Comparative example two:
this comparative example was a uniaxial tensile test using a coarse crystalline (0% rolling amount) Fe30Mn sheet, resulting in a coarse crystalline Fe30Mn sheet with a yield strength of 130MPa, a tensile strength of 551MPa, and a uniform elongation of 49.5%.
As an embodiment of the invention, the surface of the oil tank 3 is movably connected with a connecting assembly, and the bottom end of the connecting assembly is movably connected with a leakage net 5; the leakage net 5 is arranged in the oil tank 3;
the connecting component consists of a connecting plate 2, a hydraulic oil cylinder 21 and a connecting block 22; the connecting plate 2 is connected to the surface of the oil tank 3 in a sliding manner, and the connecting block 22 is correspondingly connected to the side wall of the oil tank 3 in a sliding manner; the hydraulic oil cylinder 21 is fixedly connected to the top of the connecting plate 2, and the bottom of the hydraulic oil cylinder 21 is hinged to the side wall of the drain net 5.
Specifically, when the connecting assembly works, the connecting plate 2 can slide on the surface of the oil tank 3, and simultaneously drives the alloy body 11 sliding to the bottom of the leakage net 5 to move in oil liquid in the oil tank 3, so that the alloy body 11 can be fully subjected to oil quenching treatment, after the alloy body 11 is fully subjected to oil quenching, the connecting plate 2 is used for sliding on the oil tank 3, so that the alloy body 11 can slide from one end of the oil tank 3 to the other end under the bearing of the leakage net 5, and the end far away from the conveyor belt 1 is acted by a hydraulic oil cylinder 21 on the connecting plate 2, so that the leakage net 5 is obliquely arranged, wherein two groups of hydraulic oil cylinders 21 are arranged on each group of connecting plates 2, when the connecting plate 2 drives the leakage net 5 to reach the other end of the oil tank 3, one end close to the conveyor belt 1 is lifted, and the end far away from the conveyor belt 1 is pressed downwards, so that the leakage net 5 tends to incline downwards, and further, the alloy body 11 in the drain net 5 can slide out of the drain net 5 under the action of gravity, so that the purpose of oil quenching treatment is realized.
As an embodiment of the present invention, a sliding groove 31 is formed on the surface of the oil tank 3 corresponding to the connecting assembly, and a position on the side wall of the sliding groove 31 corresponding to the connecting block 22 is formed with a limiting groove; a straight rod 32 is fixedly connected between the side walls of the two ends of the sliding groove 31, and the connecting block 22 is slidably connected to the straight rod 32; the connecting plate 2 is connected in the sliding groove 31 in a sliding way; the outer end side wall of the oil tank 3 is fixedly connected with symmetrically arranged connecting seats 4, and threaded rods 41 are rotatably connected in the connecting seats 4; the middle part of the threaded rod 41 penetrates through the connecting block 22, and a ball nut is correspondingly arranged inside the connecting block 22; the ball nut is screwed to the threaded rod 41.
Specifically, connecting plate 2 is when sliding, connecting plate 2 will slide in the spout 31 at oil tank 3 both ends, and simultaneously, connecting plate 2 slides in-process, the connecting block 22 at its both ends will slide in the spacing groove on oil tank 3, and when connecting block 22 produced relative slip with oil tank 3, connecting block 22 will contact with straight-bar 32 in spout 31, and slide on straight-bar 32, wherein the removal of connecting plate 2 drives threaded rod 41 through external driving motor and rotates, utilize threaded rod 41 and the inside ball nut of connecting block 22 to produce relative screw thread and rotate and can drive connecting block 22 activity on oil tank 3, thereby realize driving connecting plate 2 and slide on oil tank 3.
As an embodiment of the invention, one end of the oil tank 3 is provided with a conveyor belt 1, and an alloy body 11 is movably connected to the conveyor belt 1; the side walls of the two ends of the leakage net 5 are fixedly connected with a hinge seat 51; the bottom end of the hydraulic oil cylinder 21 is hinged on the hinge seat 51; the side walls of the two ends of the leakage net 5 are provided with a plurality of groups of through holes 52 with equal intervals.
Specifically, the conveyor belt 1 arranged at one end of the oil tank 3 is used for conveying the alloy body 11, and when the alloy body 11 moves to one end of the oil tank 3 along with the movement of the conveyor belt 1, the alloy body slides in the leakage net 5 and is soaked in oil under the action of the inertia force provided by the conveyor belt 1 and the gravity of the alloy body 11, so that oil quenching treatment is realized.
According to the invention, the high ferromanganese alloy is treated by adopting a large-strain warm rolling method, the high ferromanganese alloy is heated to a stable single-phase austenite structure state, and then rolling is carried out by applying a large strain amount, so that the generation of brittle HCP (hydrogen phosphate) -epsilon-martensite in the structure during room-temperature rolling is avoided, the high ferromanganese alloy plate prepared by carrying out simple warm rolling after heat treatment has high yield strength, tensile strength and uniform elongation, and the result of a uniaxial tensile experiment shows that the yield strength of 50% of the warm-rolled high ferromanganese alloy is more than 310MPa, the tensile strength is more than 770MPa, and the uniform elongation is more than 12% by using conventional rolling equipment, so that the continuous production is facilitated, the production efficiency is high, and the yield strength of 90% of the warm-rolled high ferromanganese alloy is more than 370MPa, the tensile strength is more than 770MPa, and the uniform elongation is more than 680%.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A preparation method of a high-strength high-plasticity high-manganese-iron alloy plate is characterized by comprising the following steps of: the method comprises the following steps:
s1: heating the high-ferromanganese alloy block material at 900 ℃, preserving heat for 2 hours, and performing oil quenching treatment to obtain a coarse-grained high-ferromanganese alloy material with a homogenized structure;
s2: processing the coarse-grained high manganese iron alloy plate processed in the step S1 in a linear cutting mode;
s3: placing the high-manganese iron alloy plate cut in the step S2 into an austenite box type resistance furnace for heating and heat preservation;
s4: performing multi-pass warm rolling treatment on the high-manganese iron alloy subjected to the heat treatment in the step S3;
s5: and (4) performing air cooling treatment on the plate treated in the step S4 to prepare a high-ferromanganese alloy plate with high strength, high elongation and high work hardening rate by deformation warm rolling.
2. The method for preparing the high-strength high-plasticity high-manganese-iron alloy plate according to claim 1, wherein the method comprises the following steps: in the step S2, the initial thickness of the high-manganese-iron alloy plate processed by wire cutting is 10 +/-1 mm.
3. The method for preparing the high-strength high-plasticity high-manganese-iron alloy plate according to claim 2, wherein the method comprises the following steps: in the S3, the stable temperature range of the austenite box type resistance furnace is 350-550 ℃, and the heat preservation time is controlled to be 10-30 minutes.
4. The method for preparing the high-strength high-plasticity high-manganese-iron alloy plate according to claim 3, wherein the method comprises the following steps: in the S4, the warm rolling temperature range is 350-550 ℃, the heat preservation time before each pass of warm rolling is 3-5 minutes, the rolling reduction of each pass is 1-10%, and the total rolling amount is 50-90%.
5. The method for preparing the high-strength high-plasticity high-manganese-iron alloy plate according to claim 4, wherein the method comprises the following steps: in S1, the oil quenching refers to placing the high-manganese iron alloy material into an oil tank to be oil-immersed, so that the surface of the high-manganese iron alloy material is fully immersed in oil, thereby achieving the purpose of oil quenching.
6. The method for preparing the high-strength high-plasticity high-manganese-iron alloy plate according to claim 5, wherein the method comprises the following steps: the surface of the oil tank (3) is movably connected with a connecting assembly, and the bottom end of the connecting assembly is movably connected with a leakage net (5); the leakage net (5) is arranged in the oil tank (3);
the connecting component consists of a connecting plate (2), a hydraulic oil cylinder (21) and a connecting block (22); the connecting plate (2) is connected to the surface of the oil tank (3) in a sliding mode, and the connecting block (22) is correspondingly connected to the side wall of the oil tank (3) in a sliding mode; the hydraulic oil cylinder (21) is fixedly connected to the top of the connecting plate (2), and the bottom of the hydraulic oil cylinder (21) is hinged to the side wall of the drain net (5).
7. The method for preparing the high-strength high-plasticity high-manganese-iron alloy sheet according to claim 6, wherein the method comprises the following steps: a sliding groove (31) is formed in the surface of the oil tank (3) corresponding to the connecting assembly, and a limiting groove is formed in the side wall of the sliding groove (31) corresponding to the connecting block (22); a straight rod (32) is fixedly connected between the side walls of the two ends of the sliding groove (31), and the connecting block (22) is connected to the straight rod (32) in a sliding manner; the connecting plate (2) is connected in the sliding groove (31) in a sliding way; the side wall of the outer end of the oil tank (3) is fixedly connected with symmetrically arranged connecting seats (4), and threaded rods (41) are rotatably connected to the connecting seats (4); the middle part of the threaded rod (41) penetrates through the connecting block (22), and a ball nut is correspondingly arranged inside the connecting block (22); the ball nut is in threaded connection with the threaded rod (41).
8. The method for preparing the high-strength high-plasticity high-manganese-iron alloy sheet according to claim 7, wherein the method comprises the following steps: a conveyor belt (1) is arranged at one end of the oil tank (3), and an alloy body (11) is movably connected to the conveyor belt (1); the side walls of the two ends of the leakage net (5) are fixedly connected with a hinge seat (51); the bottom end of the hydraulic oil cylinder (21) is hinged on the hinge seat (51); the side walls of the two ends of the leakage net (5) are provided with a plurality of groups of equidistant through holes (52).
9. A high-strength high-plasticity high-manganese-iron alloy plate is characterized in that: the sheet is prepared by the method for preparing the high-strength high-plasticity high-manganese-iron alloy sheet as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210021033.9A CN114350912A (en) | 2022-01-10 | 2022-01-10 | High-strength high-plasticity high-manganese-iron alloy plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210021033.9A CN114350912A (en) | 2022-01-10 | 2022-01-10 | High-strength high-plasticity high-manganese-iron alloy plate and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114350912A true CN114350912A (en) | 2022-04-15 |
Family
ID=81107597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210021033.9A Pending CN114350912A (en) | 2022-01-10 | 2022-01-10 | High-strength high-plasticity high-manganese-iron alloy plate and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114350912A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846273A (en) * | 2014-08-14 | 2015-08-19 | 燕山大学 | Low-temperature plasticity high manganese steel plate and processing technology thereof |
| CN105936958A (en) * | 2016-06-29 | 2016-09-14 | 安徽安簧机械股份有限公司 | Conveying device for preventing bumping before quenching oil inlet process of products on forging line |
| CN108220795A (en) * | 2017-12-19 | 2018-06-29 | 钢铁研究总院 | A kind of high-strength high-plasticity low density steel and its manufacturing method |
| CN208649388U (en) * | 2018-07-20 | 2019-03-26 | 青岛林达科技开发有限公司 | Miniature workpiece quenching cooler with filter mechanism |
| CN110484700A (en) * | 2019-09-03 | 2019-11-22 | 湖南三特机械制造有限公司 | A kind of lifting turntable for engineering machinery guide wheel quenching apparatus |
| CN210458266U (en) * | 2019-07-19 | 2020-05-05 | 昆明论道机械制造有限公司 | Quenching bath capable of maintaining temperature in bath |
| CN112410681A (en) * | 2020-11-26 | 2021-02-26 | 燕山大学 | High-strength-ductility medium manganese steel and preparation method thereof |
| CN112899456A (en) * | 2021-01-19 | 2021-06-04 | 南京理工大学 | High-strength and high-plasticity high-manganese TRIP steel plate and preparation method thereof |
| CN113337700A (en) * | 2021-06-15 | 2021-09-03 | 危巍狮 | Gear quenching machine |
| CN215162930U (en) * | 2021-05-18 | 2021-12-14 | 湖北日盛科技有限公司 | Quick cooling device of hot work die steel |
-
2022
- 2022-01-10 CN CN202210021033.9A patent/CN114350912A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846273A (en) * | 2014-08-14 | 2015-08-19 | 燕山大学 | Low-temperature plasticity high manganese steel plate and processing technology thereof |
| CN105936958A (en) * | 2016-06-29 | 2016-09-14 | 安徽安簧机械股份有限公司 | Conveying device for preventing bumping before quenching oil inlet process of products on forging line |
| CN108220795A (en) * | 2017-12-19 | 2018-06-29 | 钢铁研究总院 | A kind of high-strength high-plasticity low density steel and its manufacturing method |
| CN208649388U (en) * | 2018-07-20 | 2019-03-26 | 青岛林达科技开发有限公司 | Miniature workpiece quenching cooler with filter mechanism |
| CN210458266U (en) * | 2019-07-19 | 2020-05-05 | 昆明论道机械制造有限公司 | Quenching bath capable of maintaining temperature in bath |
| CN110484700A (en) * | 2019-09-03 | 2019-11-22 | 湖南三特机械制造有限公司 | A kind of lifting turntable for engineering machinery guide wheel quenching apparatus |
| CN112410681A (en) * | 2020-11-26 | 2021-02-26 | 燕山大学 | High-strength-ductility medium manganese steel and preparation method thereof |
| CN112899456A (en) * | 2021-01-19 | 2021-06-04 | 南京理工大学 | High-strength and high-plasticity high-manganese TRIP steel plate and preparation method thereof |
| CN215162930U (en) * | 2021-05-18 | 2021-12-14 | 湖北日盛科技有限公司 | Quick cooling device of hot work die steel |
| CN113337700A (en) * | 2021-06-15 | 2021-09-03 | 危巍狮 | Gear quenching machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109097704B (en) | Method for producing annealing-free vanadium-containing heat-resistant steel hot-rolled wire rod | |
| Di Schino et al. | Metallurgical aspects related to contact fatigue phenomena in steels for back-up rolls | |
| BRPI0911139B1 (en) | HIGH RESISTANCE STEEL PLATE FOR CAN AND METHOD FOR PRODUCTION | |
| CN1143899C (en) | Cold rolled steel | |
| CN1861813A (en) | The processing apparatus using inducting heating of the part in the long bar and a method thereof | |
| CN111002000B (en) | Processing method for improving grain size of flexible gear of harmonic reducer | |
| Hwang | Effect of copper and aluminum contents on wire drawing behavior in twinning-induced plasticity steels | |
| CN104593573A (en) | Combined thermomechanical treatment strengthening method for efficiently improving strength and toughness of non-quenched and tempered steel | |
| US6364974B1 (en) | Quenching apparatus and method for hardening steel parts | |
| Wang et al. | Improvement of hole-expansion property for medium carbon steels by ultra fast cooling after hot strip rolling | |
| GB2621778A (en) | Hot bath forming process for high-corrosion-resistance easy-to-weld hot-pressed parts | |
| CN110670004A (en) | Continuous heat treatment production line for improving strength of aluminum alloy and working method thereof | |
| CN208038510U (en) | A kind of rotatable Equipment for Heating Processing | |
| CN114350912A (en) | High-strength high-plasticity high-manganese-iron alloy plate and preparation method thereof | |
| US20190071747A1 (en) | Method of heat treating steel | |
| JP4102284B2 (en) | {100} <011> Cold rolled steel sheet manufacturing method with excellent shape freezing property with developed orientation | |
| CN112458260A (en) | High-strength high-plasticity nanostructured 316L stainless steel plate and preparation method thereof | |
| CN104399781B (en) | A kind of method eliminating low-alloy high-strength steel yield point elongation | |
| CN100537790C (en) | The heat treating method of marine diesel oil machine bolt | |
| CN103820709B (en) | A kind of thickness is high-strength binding band and the production method thereof of 1.0mm | |
| CN214115653U (en) | Tempering heat treatment device for cold roll | |
| CN112553413B (en) | Planet carrier, casting material and heat treatment process thereof | |
| CN113275405B (en) | TWIP steel wire direct drawing forming method | |
| CN100558914C (en) | Large-scale port machine 30Mn 280 orbit square steel cold drawing strain ageing thermal treatment process | |
| CN103451407A (en) | Bracket, device and method for batched heat treatment of steel bars |
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 |