A manufacturing process of ultra-high strength low alloy steel

Abstract

The invention discloses a manufacturing process of ultra-high strength low alloy steel, comprising the following steps: step S1: low carbon steel is selected as raw material, and its components are as follows by mass percentage: carbon content 0.1% to 0.2%, manganese content 0.5% to 1.5%, silicon content 0.1% to 0.6%, chromium content 0.1% to 0.9%, nickel content 0.2% to 1.3%, vanadium and molybdenum content below 0.1%, and the balance is iron; the invention relates to the technical field of low alloy steel manufacturing, and the case can achieve full heating of the blank, and can ensure that the blank is in the center position of the heating box during the heating process, so as to ensure the overall heating uniformity of the blank, and at the same time, by cooperating with the forging machine through the two adjustment and pushing structures provided, the blank can be adjusted in angle while performing reciprocating forging operation on the blank, so as to improve the intrinsic strength and toughness of the material, and compared with the traditional feeding equipment, on the one hand, it can reduce the equipment investment cost during forging, and can remotely drive the device to work, so as to reduce the influence of high temperature on personnel.

Description

Technical Field

[0001] The invention relates to the technical field of low alloy steel manufacturing, in particular to a manufacturing process of ultra-high strength low alloy steel. Background Art

[0002] Low alloy steel refers to steel containing a small amount of alloying elements. Its main feature is that the content of alloying elements is lower than that of high alloy steel. Generally speaking, the total content of alloying elements in low alloy steel does not exceed 5%. These alloying elements mainly include manganese, silicon, chromium, nickel, etc. Their addition can improve the mechanical properties, wear resistance, corrosion resistance and other characteristics of steel, and also help optimize the processing technology and cost-effectiveness of steel.

[0003] The forging process currently used in the manufacture of low-alloy steel requires workers to operate a designated feeder to transport the heated billet. The overall operation is relatively cumbersome, and workers are required to make frequent adjustments according to the forging needs of different billets. In addition, the currently used forging heating equipment is difficult to ensure that the workpiece remains in the center of the heating equipment during use, which easily causes the temperature on both sides of the billet to be inconsistent. In the subsequent forging process, the low-temperature part is difficult to meet the forging requirements. In view of this, there may be technical means to solve the above problems in the prior art, but this case intends to provide an alternative or replacement technical solution. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems. A manufacturing process of ultra-high strength low alloy steel is designed, which solves the forging process used in the manufacturing of existing low alloy steel. When in use, the staff needs to operate a designated feeder to transport the heated billet. The overall operation is relatively cumbersome, and the staff needs to make frequent adjustments according to the forging needs of different billets. In addition, the currently used forging heating equipment is difficult to ensure that the workpiece remains in the center of the heating equipment when in use, which easily causes the temperature on both sides of the billet to be inconsistent. In the subsequent forging process, the low temperature part is difficult to meet the forging requirements.

[0005] The technical solution of the present invention for achieving the above-mentioned purpose is: a manufacturing process of ultra-high strength low alloy steel, the equipment used in the process includes a base plate, a heating box, a hoisting frame, two first linear slides, an electric hoist and a clamping claw, the heating box is fixedly installed on one side of the upper end of the base plate, the four corners of the bottom end of the hoisting frame are fixedly installed on one side of the upper end of the base plate, the two first linear slides are respectively fixedly installed on both sides of the upper end of the hoisting frame, the two sides of the lower end of the electric hoist are respectively connected to the driving ends of the two first linear slides, the clamping claw is connected to the electric hoist, the upper end of the heating box is provided with a heating protection structure, a forging press is provided at the center of the upper end of the base plate, and the upper end of the base plate is provided with two adjustment push structures, and the two adjustment push structures are respectively located on both sides of the forging press;

[0006] The heating protection structure comprises: a plurality of air intake nozzles, two fixing blocks, a first motor, an auxiliary shaft, two semicircular guard plates, two gears, two temperature sensors and two arc grooves;

[0007] A plurality of the air intake nozzles are embedded in the side wall of the heating box, the two fixing blocks are fixedly installed at the upper end of the wall of one side of the heating box, the first motor is fixedly embedded in one of the fixing blocks, the auxiliary shaft is movably embedded in the other fixing block through a bearing, one end of the two semicircular guard plates is respectively fixedly installed at the driving end of the first motor and the upper end of the auxiliary shaft, the two gears are respectively fixedly installed at the top of the driving end of the first motor and the top of the auxiliary shaft, the two gears are meshed with each other, the two temperature sensors are respectively fixedly installed at the upper ends of the two semicircular guard plates, and the two arc grooves are respectively opened at the center of the inner walls of the two semicircular guard plates;

[0008] The following steps are also included;

[0009] Step S1: low carbon steel is selected as the raw material, and its components by mass percentage are: carbon content 0.1% to 0.2%, manganese content 0.5% to 1.5%, silicon content 0.1% to 0.6%, chromium content 0.1% to 0.9%, nickel content 0.2% to 1.3%, vanadium and molybdenum content less than 0.1%, and the balance is iron;

[0010] Step S2: using smelting equipment to melt the raw materials, controlling the precise ratio of alloy elements, and removing impurities and oxides during the refining process to ensure the purity and uniformity of the steel;

[0011] Step S3: continuously casting the refined molten steel to form a billet;

[0012] Step S4: The blank is heated by the heating box, and the fixed end of the heating box is semi-closed by cooperating with the two semicircular guard plates and the two arc grooves, and the hoisting frame and the blank are placed at the center of the heating box to ensure the overall heating effect of the blank. After the blank is heated to an appropriate temperature, the blank is hoisted above the adjusting and pushing structure;

[0013] Step S5: adjusting the angle of the blank by adjusting the pushing structure and pushing it into the forging machine, and repeatedly forging the blank by the forging machine and the adjusting pushing structure cooperating with each other;

[0014] Step S6: The forged billet is heat treated by a heat treatment device to adjust the structure and properties of the steel material to control the balance of hardness, strength and toughness;

[0015] Step S7: After the heat treatment, the microstructure of the steel is adjusted by controlling the cooling rate to further optimize its mechanical properties;

[0016] Step S8: Precisely cut and process the finished product to ensure dimensional accuracy and surface quality;

[0017] Step S9: Perform surface treatment to improve corrosion resistance and assembly performance.

[0018] Preferably, one of the adjustment and pushing structures comprises: a mounting platform, an angle adjustment assembly, two drive frames, two second motors, two lead screws, two drive blocks, a third motor, a flip frame, a first electric push rod and an extension and pushing assembly;

[0019] The mounting platform is fixedly mounted on the upper end of the base plate, the angle adjustment assembly is movably embedded in one side of the mounting platform and fixedly mounted on the upper end of the base plate, the two driving frames are respectively mounted on both sides of the upper end of the mounting platform, the two second motors are respectively mounted on one side of the two driving frames, the two screw rods are respectively movably embedded in the two driving frames, and one end is respectively connected to the two second motor driving ends, the two driving blocks are respectively movably embedded in the two driving frames, and are respectively movably sleeved on the upper ends of the two screw rods through internal threads, the third motor is embedded in the wall surface of one side of one of the driving blocks, one end of the flip frame is fixedly connected to the third motor driving end, and the other end is movably mounted on one side of the other driving block through a bearing, the first electric push rod is fixedly mounted on one side of the flip frame, and the telescopic end is embedded in the flip frame, the extension propulsion assembly is embedded in the other side of the mounting platform, and fixedly mounted on the upper end of the base plate.

[0020] Preferably, the angle adjustment assembly comprises: a second electric push rod, a first guide frame, a fourth motor and a rotating disk;

[0021] The second electric push rod is fixedly installed on the upper end of the base plate, and the two ends of the first guide frame are respectively connected to the upper end of the base plate and the lower wall of the mounting platform. The fourth motor is movably mounted on the upper end of the first guide frame through a frame body, and the rotating disk is movably embedded in the mounting platform and connected to the driving end of the fourth motor.

[0022] Preferably, the extension propulsion assembly comprises: a third electric push rod, a second guide frame, a second linear slide and an extension propulsion rod;

[0023] The third electric push rod is fixedly installed on the upper end of the base plate, and the two ends of the second guide frame are respectively connected to the upper end of the base plate and the lower wall of the mounting platform. The second linear slide is movably mounted on the upper end of the second guide frame through a frame body. The extended push rod is movably embedded in the mounting platform, and one side of the lower end is connected to the driving end of the second linear slide.

[0024] Preferably, a T-shaped support platform is provided at the center of the lower end of the heating box.

[0025] Preferably, a circular countersunk hole is opened on one side of the upper end of the mounting platform, and the circular countersunk hole matches the rotating disk.

[0026] Preferably, a strip hole is provided on the other side of the upper end of the mounting platform, and the strip hole matches the extending propulsion rod.

[0027] Preferably, a first movable connecting frame is provided at the connection between the fourth motor and the first guide frame.

[0028] Preferably, a second movable connecting frame is provided at the connection between the second linear slide and the second guide frame.

[0029] A manufacturing process for ultra-high strength low alloy steel is produced by utilizing the technical solution of the present invention. In this case, the heating box and the heating protection structure are arranged in cooperation, so that the blank can be fully heated, and the blank can be ensured to be in the center position of the heating box during the heating process, so as to ensure the overall heating uniformity of the blank. At the same time, by cooperating with the two adjustment push structures and the forging machine, the angle of the blank can be adjusted while the blank is reciprocated forged, so as to improve the intrinsic strength and toughness of the material. Compared with the traditional feeding equipment, on the one hand, the equipment investment cost during forging can be reduced, and the device can be driven by a remote program to work, so as to reduce the influence of high temperature on personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the main stereoscopic structure of a manufacturing process of an ultra-high strength low alloy steel according to the present invention.

[0031] Figure 2 It is a rear-view stereoscopic structural schematic diagram of a manufacturing process of an ultra-high-strength low-alloy steel according to the present invention.

[0032] Figure 3 It is a schematic diagram of the main cross-sectional structure of a manufacturing process of an ultra-high strength low alloy steel according to the present invention.

[0033] Figure 4 It is a three-dimensional structural schematic diagram of an adjusting and driving structure of a manufacturing process of ultra-high strength low alloy steel described in the present invention.

[0034] Figure 5 This is an enlarged structural schematic diagram of point "A" of the manufacturing process of an ultra-high strength low alloy steel described in the present invention.

[0035] In the figure: 1, bottom plate, 2, heating box, 3, lifting frame, 4, first linear slide, 5, electric hoist, 6, clamping claw, 7, forging machine, 8, air intake nozzle, 9, fixed block, 10, first motor, 11, auxiliary shaft, 12, semicircular guard plate, 13, gear, 14, temperature sensor, 15, arc groove, 16, mounting platform, 17, driving frame, 18, second motor, 19, screw rod, 20, driving block, 21, third motor, 22, flip frame, 23, first electric push rod, 24, second electric push rod, 25, first guide frame, 26, fourth motor, 27, rotating disk, 28, third electric push rod, 29, second guide frame, 30, second linear slide, 31, extension push rod, 32, T-shaped support table, 33, circular countersunk hole, 34, strip hole, 35, first mobile connecting frame, 36, second mobile connecting frame. DETAILED DESCRIPTION

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-5 As shown, a manufacturing process of ultra-high strength low alloy steel.

[0037] Embodiment: A manufacturing process of ultra-high strength low alloy steel, the equipment used in the process includes a base plate 1, a heating box 2, a hoisting frame 3, two first linear slides 4, an electric hoist 5 and a clamp 6, the heating box 2 is fixedly installed on one side of the upper end of the base plate 1, the four corners of the bottom end of the hoisting frame 3 are fixedly installed on one side of the upper end of the base plate 1, the two first linear slides 4 are respectively fixedly installed on both sides of the upper end of the hoisting frame 3, the two sides of the lower end of the electric hoist 5 are respectively connected to the driving ends of the two first linear slides 4, the clamp 6 is connected to the electric hoist 5, a heating protection structure is provided on the upper end of the heating box 2, a forging press 7 is provided at the center of the upper end of the base plate 1, and two adjustment push structures are provided on the upper end of the base plate 1, and the two adjustment push structures are respectively located on both sides of the forging press 7;

[0038] When the billet is heated and forged, the electric hoist 5 cooperates with the clamp 6 to move the billet into the heating box 2 and place it on the upper end of the T-shaped support platform 32 in the heating box 2. When placing it, the heating protection structure located at the upper end of the heating box 2 works, and the clamp 6 is kept at the center of the heating box 2 through the cooperation of two semicircular arc plates and two arc grooves 15. The billet is then placed. After the placement is completed, the heating protection structure is opened, and the clamp 6 is driven up by the electric hoist 5. When the billet is heated to the specified temperature, the heating protection structure is opened again, and the heated billet is taken out through the cooperation of the electric hoist 5 and the clamp 6, and the two first linear slides 4 at the upper end of the lifting frame 3 work to move the billet to the upper end of the adjusting push structure, and the billet is repeatedly forged.

[0039] The heating protection structure includes: a plurality of air intake nozzles 8, two fixing blocks 9, a first motor 10, an auxiliary shaft 11, two semicircular guard plates 12, two gears 13, two temperature sensors 14 and two arc grooves 15;

[0040] A number of air intake nozzles 8 are embedded in the side wall of the heating box 2, two fixed blocks 9 are fixedly installed at the upper end of the wall of one side of the heating box 2, the first motor 10 is fixedly embedded in one of the fixed blocks 9, and the auxiliary shaft 11 is movably embedded in the other fixed block 9 through a bearing. One end of the two semicircular guard plates 12 is respectively fixedly installed at the driving end of the first motor 10 and the upper end of the auxiliary shaft 11, and the two gears 13 are respectively fixedly installed at the top of the driving end of the first motor 10 and the top of the auxiliary shaft 11. The two gears 13 are meshed with each other, and the two temperature sensors 14 are respectively fixedly installed at the upper ends of the two semicircular guard plates 12, and the two arc grooves 15 are respectively opened at the center of the inner walls of the two semicircular guard plates 12.

[0041] When the blank is heated, the electric hoist 5 cooperates with the clamp 6 to place the blank in the heating box 2, and then the first motor 10 in one of the fixed blocks 9 works to drive one of the semicircular guard plates 12 to rotate inward. While the first motor 10 rotates, the other semicircular guard plate 12 and the auxiliary shaft 11 rotate in the other fixed block 9 under the action of the mutual meshing of the two gears 13. During the process of the two semicircular guard plates 12 rotating inward, the rope of the electric hoist 5 is guided and limited by the two arc grooves 15, so that the rope is in the heating state. The blank can be placed at the center of the box 2. After the placement is completed, the first motor 10 works again to unfold the two semicircular arc plates, and the clamp 6 is taken out by the electric hoist 5. Then the first motor 10 works again to close the two semicircular guard plates 12. The combustible gas is transported to the heating box 2 through the set several air intake nozzles 8 and ignited. The blank is subjected to surrounding heating treatment to ensure the overall heating effect of the blank. During the heating process, the temperature in the heating box 2 can be detected by the two temperature sensors 14 at the upper ends of the two semicircular guard plates 12.

[0042] The following steps are also included;

[0043] Step S1: low carbon steel is selected as the raw material, and its components by mass percentage are: carbon content 0.1% to 0.2%, manganese content 0.5% to 1.5%, silicon content 0.1% to 0.6%, chromium content 0.1% to 0.9%, nickel content 0.2% to 1.3%, vanadium and molybdenum content less than 0.1%, and the balance is iron;

[0044] Step S2: using smelting equipment to melt the raw materials, controlling the precise ratio of alloy elements, and removing impurities and oxides during the refining process to ensure the purity and uniformity of the steel;

[0045] Step S3: continuously casting the refined molten steel to form a billet;

[0046] Step S4: The blank is heated by the heating box 2, and the fixed end of the heating box 2 is semi-closed by cooperating with the two semicircular guard plates 12 and the two arc grooves 15, and the hoisting frame 3 and the blank are placed at the center of the heating box 2 to ensure the overall heating effect of the blank. After the blank is heated to an appropriate temperature, the blank is hoisted above the adjusting and pushing structure;

[0047] Step S5: adjusting the angle of the blank by adjusting the pushing structure and pushing it into the forging machine 7, and repeatedly forging the blank by the forging machine 7 and the adjusting pushing structure cooperating with each other;

[0048] Step S6: The forged billet is heat treated by a heat treatment device to adjust the structure and properties of the steel material to control the balance of hardness, strength and toughness;

[0049] Step S7: After the heat treatment, the microstructure of the steel is adjusted by controlling the cooling rate to further optimize its mechanical properties;

[0050] Step S8: Precisely cut and process the finished product to ensure dimensional accuracy and surface quality;

[0051] Step S9: Perform surface treatment to improve corrosion resistance and assembly performance.

[0052] In the specific implementation process, one of the adjustment and pushing structures includes: a mounting platform 16, an angle adjustment assembly, two drive frames 17, two second motors 18, two screw rods 19, two drive blocks 20, a third motor 21, a flip frame 22, a first electric push rod 23 and an extension push assembly;

[0053] The mounting platform 16 is fixedly mounted on the upper end of the base plate 1, the angle adjustment component is movably embedded in one side of the mounting platform 16, and is fixedly mounted on the upper end of the base plate 1, the two driving frames 17 are respectively mounted on both sides of the upper end of the mounting platform 16, the two second motors 18 are respectively mounted on one side of the two driving frames 17, the two screw rods 19 are respectively movably embedded in the two driving frames 17, and one end is respectively connected to the driving ends of the two second motors 18, the two driving blocks 20 are respectively movably embedded in the two driving frames 17, and are respectively movably sleeved on the upper ends of the two screw rods 19 through internal threads, the third motor 21 is embedded in the wall surface of one side of one of the driving blocks 20, one end of the flip frame 22 is fixedly connected to the driving end of the third motor 21, and the other end is movably mounted on one side of the other driving block 20 through a bearing, the first electric push rod 23 is fixedly mounted on one side of the flip frame 22, and the telescopic end is embedded in the flip frame 22, the extension propulsion component is embedded in the other side of the mounting platform 16, and is fixedly mounted on the upper end of the base plate 1.

[0054] When the heated blank is forged, the blank is first supported by the mounting platform 16, and the blank on the upper end of the mounting platform 16 is rotated by the angle adjustment component to ensure the forging effect of the blank. Then, the second motor 18 located on one side of the driving frame 17 works, and under the rotation of the two screw rods 19, the two driving blocks 20 are moved to one side of the blank in the screw rods 19 and the two driving frames 17. Then, the third motor 21 located in the driving block 20 works to flip the flip frame 22 to one side of the blank. Then, the first electric push rod 23 at the upper end of the flip frame 22 works, and the two second The motor 18 works to transport the blank to one side of the forging press 7, and cooperates with the forging press 7 through the extended propulsion assembly to forge the blank. The extended propulsion assembly on the other side works to push the blank back, and the flip frame 22 is flipped by the third motor 21, so that the flip frame 22 flips to the side of the forging press 7. The second motor 18 cooperates with the first electric push rod 23 to move the blank to the upper end of the angle adjustment assembly, adjust the angle of the blank, and then perform the forging process again. When the temperature of the blank is lower than the specified value, the blank is heated again by the heating protection structure until the forging process of the blank is completed.

[0055] In the specific implementation process, the angle adjustment assembly includes: a second electric push rod 24, a first guide frame 25, a fourth motor 26 and a rotating disk 27;

[0056] The second electric push rod 24 is fixedly installed on the upper end of the base plate 1, and the two ends of the first guide frame 25 are respectively connected to the upper end of the base plate 1 and the lower wall of the installation platform 16. The fourth motor 26 is movably mounted on the upper end of the first guide frame 25 through the frame body, and the rotating disk 27 is movably embedded in the installation platform 16 and connected to the driving end of the fourth motor 26.

[0057] When the blank is rotationally adjusted, the second electric push rod 24 is set to work, pushing the fourth motor 26 to move upward on the upper end of the first guide frame 25 until the height of the rotating disk 27 is higher than the upper wall of the mounting platform 16. The fourth motor 26 rotates to change the angle of the rotating disk 27 and the blank, thereby achieving the purpose of rotational adjustment of the blank.

[0058] In the specific implementation process, the extension propulsion assembly includes: a third electric push rod 28, a second guide frame 29, a second linear slide 30 and an extension propulsion rod 31;

[0059] The third electric push rod 28 is fixedly installed on the upper end of the base plate 1, and the two ends of the second guide frame 29 are respectively connected to the upper end of the base plate 1 and the lower wall of the installation platform 16. The second linear slide 30 is movably mounted on the upper end of the second guide frame 29 through the frame body, and the extended push rod 31 is movably embedded in the installation platform 16, and one side of the lower end is connected to the driving end of the second linear slide 30.

[0060] When the blank is forged and pushed, the third electric push rod 28 is set to work, pushing the second linear slide 30 to move upward at the upper end of the second guide frame 29, so that the height of the extended push rod 31 is higher than the mounting platform 16, and then the second linear slide 30 works to drive the extended push rod 31 to move to one side, pushing the blank into the forging machine 7, thereby realizing the forging and pushing operation of the blank.

[0061] In the specific implementation process, a T-shaped support platform 32 is provided at the center of the lower end of the heating box 2.

[0062] In the specific implementation process, a circular countersunk hole 33 is opened on one side of the upper end of the installation platform 16 , and the circular countersunk hole 33 matches the rotating disk 27 .

[0063] In the specific implementation process, a strip hole 34 is opened on the other side of the upper end of the installation platform 16 , and the strip hole 34 matches the extended propulsion rod 31 .

[0064] In a specific implementation process, a first movable connection frame 35 is provided at the connection between the fourth motor 26 and the first guide frame 25 .

[0065] In a specific implementation process, a second movable connection frame 36 is provided at the connection between the second linear slide 30 and the second guide frame 29 .

[0066] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A process for manufacturing ultra-high strength low alloy steel, characterized in that: The equipment used in the process comprises a base plate (1), a heating box (2), a hanging frame (3), two first linear slides (4), an electric hoist (5) and a clamp (6), wherein the heating box (2) is fixedly mounted on one side of the upper end of the base plate (1), the four corners of the bottom end of the hanging frame (3) are fixedly mounted on one side of the upper end of the base plate (1), the two first linear slides (4) are respectively fixedly mounted on both sides of the upper end of the hanging frame (3), the two sides of the lower end of the electric hoist (5) are respectively connected to the driving ends of the two first linear slides (4), the clamp (6) is connected to the electric hoist (5), the upper end of the heating box (2) is provided with a heating protection structure, the center of the upper end of the base plate (1) is provided with a forging press (7), and the upper end of the base plate (1) is provided with two adjustment push structures, and the two adjustment push structures are respectively located on both sides of the forging press (7); The heating protection structure comprises: a plurality of air intake nozzles (8), two fixing blocks (9), a first motor (10), an auxiliary shaft (11), two semicircular guard plates (12), two gears (13), two temperature sensors (14) and two arc-shaped grooves (15); The plurality of air intake nozzles (8) are all embedded in the side wall of the heating box (2), the two fixing blocks (9) are both fixedly mounted on the upper end of the wall of one side of the heating box (2), the first motor (10) is fixedly mounted in one of the fixing blocks (9), the auxiliary shaft (11) is movably mounted in the other fixing block (9) through a bearing, one end of the two semicircular guard plates (12) are respectively fixedly mounted on the driving end of the first motor (10) and the upper end of the auxiliary shaft (11), the two gears (13) are respectively fixedly mounted on the top of the driving end of the first motor (10) and the top of the auxiliary shaft (11), the two gears (13) are meshed with each other, the two temperature sensors (14) are respectively fixedly mounted on the upper ends of the two semicircular guard plates (12), and the two arc grooves (15) are respectively opened at the center of the inner walls of the two semicircular guard plates (12); The following steps are also included; Step S1: low carbon steel is selected as the raw material, and its components by mass percentage are: carbon content 0.1% to 0.2%, manganese content 0.5% to 1.5%, silicon content 0.1% to 0.6%, chromium content 0.1% to 0.9%, nickel content 0.2% to 1.3%, vanadium and molybdenum content less than 0.1%, and the balance is iron; Step S2: using smelting equipment to melt the raw materials, controlling the precise ratio of alloy elements, and removing impurities and oxides during the refining process to ensure the purity and uniformity of the steel; Step S3: continuously casting the refined molten steel to form a billet; Step S4: The blank is heated by the heating box, and the fixed end of the heating box is semi-closed by cooperating with the two semicircular guard plates and the two arc grooves, and the hoisting frame and the blank are placed at the center of the heating box to ensure the overall heating effect of the blank. After the blank is heated to an appropriate temperature, the blank is hoisted above the adjusting and pushing structure; Step S5: adjusting the angle of the blank by adjusting the pushing structure and pushing it into the forging machine, and repeatedly forging the blank by the forging machine and the adjusting pushing structure cooperating with each other; Step S6: The forged billet is heat treated by a heat treatment device to adjust the structure and properties of the steel material to control the balance of hardness, strength and toughness; Step S7: After the heat treatment, the microstructure of the steel is adjusted by controlling the cooling rate to further optimize its mechanical properties; Step S8: Precisely cut and process the finished product to ensure dimensional accuracy and surface quality; Step S9: Perform surface treatment to improve corrosion resistance and assembly performance.

2. The manufacturing process of ultra-high strength low alloy steel according to claim 1, characterized in that: One of the adjustment and propulsion structures comprises: a mounting platform (16), an angle adjustment assembly, two drive frames (17), two second motors (18), two screw rods (19), two drive blocks (20), a third motor (21), a flip frame (22), a first electric push rod (23), and an extension propulsion assembly; The mounting platform (16) is fixedly mounted on the upper end of the base plate (1); the angle adjustment component is movably embedded in one side of the mounting platform (16) and is also fixedly mounted on the upper end of the base plate (1); the two drive frames (17) are respectively mounted on both sides of the upper end of the mounting platform (16); the two second motors (18) are respectively mounted on one side of the two drive frames (17); the two screw rods (19) are respectively movably embedded in the two drive frames (17) and one end of each screw rod is respectively connected to the drive ends of the two second motors (18); the two drive blocks (20) are respectively movably embedded in the two drive frames (17), and are respectively movably sleeved on the upper ends of the two screw rods (19) through internal threads, the third motor (21) is embedded in a wall surface on one side of one of the drive blocks (20), one end of the flip frame (22) is fixedly connected to the drive end of the third motor (21), and the other end is movably mounted on the side of the other drive block (20) through a bearing, the first electric push rod (23) is fixedly mounted on one side of the flip frame (22), and the telescopic end is embedded in the flip frame (22), and the extension propulsion assembly is embedded on the other side of the mounting platform (16), and is fixedly mounted on the upper end of the base plate (1).

3. The manufacturing process of ultra-high strength low alloy steel according to claim 2, characterized in that: The angle adjustment assembly comprises: a second electric push rod (24), a first guide frame (25), a fourth motor (26) and a rotating disk (27); The second electric push rod (24) is fixedly mounted on the upper end of the base plate (1), the two ends of the first guide frame (25) are respectively connected to the upper end of the base plate (1) and the lower wall of the mounting platform (16), the fourth motor (26) is movably mounted on the upper end of the first guide frame (25) through a frame body, and the rotating disk (27) is movably embedded in the mounting platform (16) and connected to the driving end of the fourth motor (26).

4. The manufacturing process of ultra-high strength low alloy steel according to claim 2, characterized in that: The extension propulsion assembly comprises: a third electric push rod (28), a second guide frame (29), a second linear slide (30) and an extension propulsion rod (31); The third electric push rod (28) is fixedly mounted on the upper end of the base plate (1), and the two ends of the second guide frame (29) are respectively connected to the upper end of the base plate (1) and the lower wall of the mounting platform (16), and the second linear slide (30) is movably mounted on the upper end of the second guide frame (29) through a frame body, and the extended push rod (31) is movably embedded in the mounting platform (16), and one side of the lower end is connected to the driving end of the second linear slide (30).

5. The manufacturing process of ultra-high strength low alloy steel according to claim 1, characterized in that: A T-shaped support platform (32) is provided at the center of the lower end of the heating box (2).

6. The manufacturing process of ultra-high strength low alloy steel according to claim 3, characterized in that: A circular countersunk hole (33) is provided on one side of the upper end of the mounting platform (16), and the circular countersunk hole (33) matches the rotating disk (27).

7. The manufacturing process of ultra-high strength low alloy steel according to claim 4, characterized in that: A strip-shaped hole (34) is provided on the other side of the upper end of the mounting platform (16), and the strip-shaped hole (34) matches the extending propulsion rod (31).

8. The manufacturing process of ultra-high strength low alloy steel according to claim 3, characterized in that: A first movable connection frame (35) is provided at the connection between the fourth motor (26) and the first guide frame (25).

9. The manufacturing process of ultra-high strength low alloy steel according to claim 4, characterized in that: A second movable connection frame (36) is provided at the connection between the second linear slide (30) and the second guide frame (29).

Images