An intelligent forging device and method based on seamless steel pipe processing

Abstract

The application discloses an intelligent forging equipment and method based on seamless steel pipe processing, relates to the technical field that needs to be modified, and comprises a titanium alloy cylindrical blank roller and a temperature control mechanism used for heating the titanium alloy cylindrical blank roller, an inside one side of the temperature control mechanism is provided with a supporting and correcting mechanism used for shaping and straightening the titanium alloy cylindrical blank roller, and a supporting frame is arranged on one side of the temperature control mechanism. The forging hammer mechanism can force metal to flow, fill small gaps and holes in the inside, and reduce the porosity and shrinkage porosity in the inside of the material, so that the overall density of the material is improved, potential stress concentration points are reduced, the reliability of the material is improved, and in the forging process, the titanium alloy is subjected to repeated plastic deformation, so that original coarse grains are broken into finer grains, and grain refinement helps to improve the strength and toughness of the material.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of homogenization forging method and radial forging machinery, and particularly relates to an intelligent forging equipment and method based on seamless steel pipe processing. BACKGROUND

[0002] The mechanical properties of seamless steel pipes made of titanium alloy are relatively excellent, such as high strength, low density, good corrosion resistance, etc. Titanium alloy seamless steel pipes are often used in some specific application fields. For example, in the fields of aerospace, chemical equipment, marine engineering and high-end sports equipment, titanium alloy seamless steel pipes are favored due to their excellent performance.

[0003] For example, a seamless steel pipe radial forging equipment and a forging method thereof are disclosed in CN114178452B, which includes a vertically arranged rack, and an axial feeding component and a lubrication system are arranged on both sides of the rack; a hammer forging component is arranged on the rack; the hammer forging component includes two symmetrical steering wheels arranged in a circular ring structure, each steering wheel rotates around its own axis, and a group of hammer heads are arranged in each steering wheel, each group of hammer heads includes a plurality of hammer heads movably arranged in the steering wheel, and the plurality of hammer heads are arranged uniformly in a ring around the center of the steering wheel; each hammer head is matched with a hydraulic cylinder, and the hydraulic cylinder drives the hammer head to reciprocate in the radial direction of the steering wheel; the two steering wheels rotate around their own axes, so that the hammer heads hammer the different parts of the hollow steel ingot in the circumferential direction, and the hollow steel ingot does not need to rotate during the entire forging process, thereby improving the positioning accuracy, and further improving the radial forging efficiency and size accuracy of the seamless steel pipe.

[0004] However, the above is a full-range hammering treatment for the hollow steel ingot after production, and is not a hammering treatment for the solid titanium alloy cylindrical blank roll. Since the hollow steel ingot is not compacted inside the solid titanium alloy cylindrical blank roll, the overall density of the material cannot be adjusted by hammering to reduce potential stress concentration points, and the hollow steel ingot after hammering is not subjected to surface treatment, so that the internal stress of the plastic deformation of the titanium alloy cylindrical blank roll during the forging process cannot be completely released, thereby increasing the possibility of crack initiation, and the surface of the produced seamless steel pipe has poor wear resistance and corrosion resistance, therefore, the present application provides an intelligent forging equipment and method based on seamless steel pipe processing to meet the needs. SUMMARY

[0005] The present application aims to provide an intelligent forging equipment and method based on seamless steel pipe processing, which can effectively solve the problems raised in the background art.

[0006] To achieve the above object, the application provides the following technical scheme: an intelligent forging equipment for seamless steel pipe processing, comprising a titanium alloy cylindrical blank roller and a temperature control mechanism for heating the titanium alloy cylindrical blank roller, an inside of the temperature control mechanism is provided with a supporting and correcting mechanism for shaping and straightening the titanium alloy cylindrical blank roller, one side of the temperature control mechanism is provided with a supporting frame, an inside of the supporting frame is provided with a forging hammer mechanism for simultaneously performing multidirectional hammering on the titanium alloy cylindrical blank roller, an inside of the forging hammer mechanism is provided with a hammering mechanism for controlling the surface hammering shape of the titanium alloy cylindrical blank roller, and a coating treatment mechanism for changing the surface performance of the titanium alloy cylindrical blank roller is arranged between the hammering mechanism and the temperature control mechanism.

[0007] The coating treatment mechanism comprises an inner ring shell and a plurality of conical nozzles for spraying surface modifiers, and a plurality of jet holes for jetting oxidizing protective gas are formed in the inner wall of the inner ring shell.

[0008] The temperature control mechanism comprises a heat preservation layer, the outer surface of the heat preservation layer is provided with a supporting frame, the supporting frame is installed on one side of the supporting frame, and the inner wall of the heat preservation layer is provided with a graphite heating inner tube.

[0009] The supporting and correcting mechanism comprises an inner supporting tube, the inner supporting tube is fixedly installed on one side of the heat preservation layer, the inner wall of the inner supporting tube is provided with three groups of annularly arranged stable frames, and a pressure roller is rotatably installed in the inside of each stable frame.

[0010] The coating treatment mechanism further comprises an outer cylinder, the outer cylinder is installed on one side of the heat preservation layer, the inner ring shell is installed on the inner wall of the outer cylinder and forms a sealed space, a plurality of double pipes communicating with the inside of the conical nozzles are arranged on the outer surface of the outer cylinder, a powder spraying ring pipe commonly communicating with the insides of the plurality of double pipes is arranged, a plurality of communication pipes arranged in an annular array are arranged on the outer surface of the outer cylinder, and an air communication ring pipe is commonly arranged on the outer surfaces of the plurality of communication pipes.

[0011] The forging hammer mechanism comprises a supporting cylinder frame, the supporting cylinder frame is installed in the inside of the supporting frame, the supporting cylinder frame is installed on one side of the outer cylinder, a waste port is formed in the bottom of the outer surface of the outer cylinder, and a plurality of mounting grooves arranged in an annular array are formed in the outer surface of the supporting cylinder frame.

[0012] The inside of the mounting groove is provided with a reciprocating cylinder, one end of the reciprocating cylinder is provided with a gas jet, the inside of the gas jet is provided with a pressure gas pipe, the inside of the reciprocating cylinder is provided with a plug rod, and one side of the plug rod is provided with a jacking rod.

[0013] The hammering mechanism comprises an arc-shaped jacking assembly, the arc-shaped jacking assembly comprises a mounting ring, the mounting ring is installed at one end of the jacking rod, and an arc-shaped jacking plate is connected to one end of the mounting ring.

[0014] The hammering mechanism comprises a wave pushing assembly, the wave pushing assembly comprises a sleeve, the sleeve is installed at one end of a top rod, and one end of the sleeve is connected with a ridge top plate.

[0015] The surface of the ridge top plate is in a wave shape.

[0016] The application further provides a use method of the intelligent forging equipment for seamless steel pipe processing.

[0017] Step one, the titanium alloy cylindrical blank is sent into the forging hammer mechanism through the conveying roller, the forging hammer mechanism is used for hammering the titanium alloy cylindrical blank through the hammering mechanism, the small gaps and holes in the titanium alloy cylindrical blank are closed through hammering, and the blowhole and shrinkage porosity in the material are reduced.

[0018] Step two, the titanium alloy cylindrical blank is sent into the coating treatment mechanism for surface treatment after being hammered by the forging hammer mechanism, and the coating treatment mechanism sprays surface modifiers and oxidation protective gases to the surface of the titanium alloy cylindrical blank at the same time, so that the surface of the titanium alloy cylindrical blank is plated.

[0019] Step three, after the surface of the titanium alloy cylindrical blank is sprayed with the surface modifiers and the oxidation protective gases by the coating treatment mechanism, the titanium alloy cylindrical blank is sent into the temperature control mechanism for heating treatment, so that the titanium alloy cylindrical blank is in a high-temperature state and is shaped through the supporting and correcting mechanism, the grain structure is refined, the mechanical properties of the material are enhanced, the surface modifiers and the oxidation protective gases adsorbed on the surface of the titanium alloy cylindrical blank are further heated, and more uniform and small grain structures are obtained, the overall strength and toughness of the material are improved, a reinforced layer is formed on the surface of the titanium alloy cylindrical blank, and the wear resistance and corrosion resistance are increased.

[0020] In summary, the application has the following technical effects and advantages:

[0021] 1、The present application can force the metal to flow by the hammering force of the forging hammer mechanism, fill the small gaps and holes inside, reduce the porosity and shrinkage porosity inside the material, not only improve the overall density of the material, but also reduce the potential stress concentration points, thereby enhancing the reliability of the material and in the forging process, titanium alloy is subjected to repeated plastic deformation, resulting in the original coarse grains being broken into finer grains, grain refinement helps to improve the strength and toughness of the material, for titanium alloy cylindrical blank roll, its performance depends largely on the proportion and distribution of alpha and beta phases, proper forging process can optimize the distribution of these phases, making them more uniform, thereby improving the overall performance of the material, due to grain refinement and reduction of internal defects, the titanium alloy cylindrical blank roll after the all-round hammering treatment of the forging hammer mechanism has higher tensile strength, yield strength and hardness, the plastic deformation in the forging process helps to release internal stress and reduce the possibility of crack initiation, thereby improving the fracture toughness and fatigue life of the material.

[0022] 2、The present application can form a uniform and tightly adhered coating on the surface of the titanium alloy cylindrical blank roll by simultaneously spraying surface modifier and oxidation protective gas, the coating not only provides additional wear resistance and corrosion resistance, but also reacts with the substrate material during subsequent heating process, forming a more robust bonding interface, under high temperature conditions, the oxidation protective gas (such as argon or nitrogen) can effectively prevent the titanium alloy surface from contacting with oxygen in the air, avoiding unnecessary scale formation and maintaining the surface quality. When heating treatment is carried out in the temperature control mechanism, the titanium alloy cylindrical blank roll is in a high temperature state, which helps to activate the atomic diffusion mechanism, so that the grains can be rearranged and refined, refinement not only enhances the strength and toughness of the material, but also improves its mechanical properties, the surface adsorbed modifier may have a metallurgical reaction with the titanium alloy substrate at high temperature, forming a strengthened layer with excellent wear resistance and corrosion resistance. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a first perspective three-dimensional structure schematic diagram of the intelligent forging equipment for seamless steel pipe processing.

[0025] Figure 2 It is a second perspective three-dimensional structure schematic diagram of the intelligent forging equipment for seamless steel pipe processing.

[0026] Figure 3Schematic diagram of local solid connection structure of intelligent forging equipment for seamless steel pipe processing;

[0027] Figure 4 Schematic diagram of solid connection structure of temperature control mechanism and supporting and correcting mechanism;

[0028] Figure 5 Sectional view of solid connection structure of supporting and correcting mechanism and temperature control mechanism;

[0029] Figure 6 Schematic diagram of solid connection structure of temperature control mechanism;

[0030] Figure 7 Schematic diagram of solid connection structure of coating treatment mechanism;

[0031] Figure 8 Sectional view of solid connection structure of coating treatment mechanism from first perspective;

[0032] Figure 9 Sectional view of solid connection structure of coating treatment mechanism from second perspective;

[0033] Figure 10 Schematic diagram of solid connection structure of forging hammer mechanism and hammer pressing mechanism;

[0034] Figure 11 Schematic diagram of solid connection structure of forging hammer mechanism;

[0035] Figure 12 Schematic diagram of local solid connection structure of forging hammer mechanism;

[0036] Figure 13 Schematic diagram of solid connection structure of reciprocating cylinder and air jet;

[0037] Figure 14 Schematic diagram of solid connection structure of arc-shaped pushing assembly;

[0038] Figure 15 Schematic diagram of solid connection structure of wave-shaped pushing assembly.

[0039] In the figure: 1, temperature control mechanism; 11, support frame; 12, heat preservation layer; 13, graphite heating inner tube; 2, titanium alloy cylindrical blank roll; 3, support frame; 4, hammer mechanism; 41, support cylinder frame; 42, reciprocating cylinder; 43, air jet; 44, mounting groove; 45, waste port; 46, pressure air pipe; 47, plug rod; 48, ejector rod; 5, coating treatment mechanism; 51, air ring pipe; 52, communication pipe; 53, double pipe; 54, outer cylinder; 55, conical jet; 56, inner ring shell; 57, air jet hole; 58, powder spraying ring pipe; 6, support correction mechanism; 61, inner support pipe; 62, stable frame; 63, pressure roller; 7, hammering mechanism; 8, arc-shaped ejecting assembly; 81, arc-shaped top plate; 82, mounting ring; 9, wave-shaped ejecting assembly; 91, edge top plate; 92, sleeve. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0041] Embodiment one, reference Figures 1 to 15 The illustrated intelligent forging equipment based on seamless steel pipe processing includes a titanium alloy cylindrical blank roll 2 and a temperature control mechanism 1 for heating and warming the titanium alloy cylindrical blank roll 2. One side of the temperature control mechanism 1 is provided with a support correction mechanism 6 for shaping and straightening the titanium alloy cylindrical blank roll 2. One side of the temperature control mechanism 1 is provided with a support frame 3. The inside of the support frame 3 is provided with a forging hammer mechanism 4 for simultaneously multi-directional hammering of the titanium alloy cylindrical blank roll 2. The inside of the forging hammer mechanism 4 is provided with a hammering mechanism 7 for controlling the hammering shape of the surface of the titanium alloy cylindrical blank roll 2. The hammering mechanism 7 and the temperature control mechanism 1 are provided with a coating treatment mechanism 5 for changing the surface performance of the titanium alloy cylindrical blank roll 2.

[0042] It is worth noting that the titanium alloy cylindrical blank roll 2 is sent into the forging hammer mechanism 4 through a conveying roll. The forging hammer mechanism 4 is provided with a hammering mechanism 7 for hammering the titanium alloy cylindrical blank roll 2. The titanium alloy cylindrical blank roll 2 closes small internal gaps and holes through hammering, reducing the porosity and shrinkage phenomenon in the material.

[0043] The hammering force can force the metal to flow, fill the small gaps and holes inside, and reduce the porosity and shrinkage phenomenon inside the material, not only improving the overall density of the material, but also reducing the potential stress concentration points, thereby enhancing the reliability of the material. Moreover, during the forging process, the titanium alloy is subjected to repeated plastic deformation, causing the original coarse grains to be broken into finer grains. Grain refinement helps to improve the strength and toughness of the material.

[0044] For the titanium alloy cylindrical blank roll 2, its performance is largely dependent on the proportion and distribution of the alpha and beta phases. A proper forging process can optimize the distribution of these phases, making them more uniform, thereby improving the overall performance of the material. Due to grain refinement and reduction of internal defects, the titanium alloy cylindrical blank roll 2 after being subjected to the all-around hammering treatment of the forging hammer mechanism 4 has higher tensile strength, yield strength, and hardness. The plastic deformation during the forging process helps to release internal stress and reduce the likelihood of crack initiation, thereby improving the fracture toughness and fatigue life of the material.

[0045] After being hammered by the forging hammer mechanism 4, the titanium alloy cylindrical blank roll 2 is sent to the coating treatment mechanism 5 for surface treatment. The coating treatment mechanism 5 simultaneously sprays a surface modifier and an oxidation protective gas onto the surface of the titanium alloy cylindrical blank roll 2, thereby performing coating treatment on the surface of the titanium alloy cylindrical blank roll 2.

[0046] After being sprayed with the modifier and the oxidation protective gas by the coating treatment mechanism 5, the titanium alloy cylindrical blank roll 2 is sent to the inside of the temperature control mechanism 1 for heating treatment. When the titanium alloy cylindrical blank roll 2 is in a high-temperature state, it is subjected to plastic shaping by the support correction mechanism 6, which refines the grain structure and enhances the mechanical properties of the material. Moreover, the surface modifier and the oxidation protective gas adsorbed on the surface of the titanium alloy cylindrical blank roll 2 can form a more uniform and fine grain structure after hot forging, thereby improving the overall strength and toughness of the material. In addition, a strengthened layer is formed on the surface of the titanium alloy cylindrical blank roll 2, increasing its wear resistance and corrosion resistance. Finally, the titanium alloy cylindrical blank roll 2 is sent to a pipe mill to be made into a seamless steel pipe.

[0047] By simultaneously spraying the surface modifier and the oxidation protective gas onto the surface of the titanium alloy cylindrical blank roll 2, a uniform and tightly adhered coating layer can be formed on the surface of the titanium alloy cylindrical blank roll 2. This coating layer not only provides additional wear resistance and corrosion resistance, but also reacts with the base material during subsequent heating, forming a more robust bonding interface. Under high-temperature conditions, the oxidation protective gas, such as argon or nitrogen, can effectively prevent the titanium alloy surface from contacting oxygen in the air, thereby avoiding unnecessary oxidation scale formation and maintaining the surface quality.

[0048] When the titanium alloy cylindrical blank roll 2 is in a high-temperature state during the heating treatment in the temperature control mechanism 1, the atomic diffusion mechanism is activated, the crystal grains are rearranged and refined, the strength and toughness of the material are enhanced, and the mechanical properties are improved. The surface adsorbed modifier may react with the titanium alloy substrate at high temperature to form a strengthened layer with excellent wear resistance and corrosion resistance.

[0049] When the titanium alloy cylindrical blank roll 2 is in a high-temperature state during the shaping in the support correction mechanism, it can be easily adjusted to the required size and shape. By shaping at high temperature, the residual stress after cooling can be reduced, and the risk of deformation or cracking due to stress concentration during subsequent use can be reduced.

[0050] Moreover, after all the above processes, the titanium alloy cylindrical blank roll 2 is finally sent to the pipe making machine to make seamless steel pipes. These steel pipes have high strength, good toughness and excellent corrosion resistance, and are very suitable for use in extreme environments such as aerospace, marine engineering and chemical industry.

[0051] Embodiment two, according to the forging hammer mechanism 4 provided in embodiment one, the further technical solutions of the forging hammer mechanism 4 are provided.

[0052] The forging hammer mechanism 4 comprises a support cylinder frame 41 installed in the inside of the support frame 3, and the support cylinder frame 41 is installed on one side of the outer cylinder 54. The outer surface of the outer cylinder 54 is provided with a waste port 45, and the outer surface of the support cylinder frame 41 is provided with a plurality of installation grooves 44 arranged in a ring array.

[0053] The inside of the installation groove 44 is provided with a reciprocating cylinder 42, one end of the reciprocating cylinder 42 is provided with a gas jet piece 43, the inside of the gas jet piece 43 is provided with a pressure air pipe 46, the inside of the reciprocating cylinder 42 is provided with a plug rod piece 47, and one side of the plug rod piece 47 is provided with a top rod 48.

[0054] It is worth noting that when the titanium alloy cylindrical blank roll 2 is transported into the inside of the support cylinder frame 41, the gas jet piece 43 is controlled by the pressure air pipe 46, and the gas jet piece 43 combined with the reciprocating cylinder 42 belongs to the air hammer in the prior art. The plug rod piece 47 is controlled to reciprocate in the reciprocating cylinder 42 by compressed air, and the plug rod piece 47 drives the top rod 48 to move. The top rod 48 drives the hammering mechanism 7 to hit the surface of the titanium alloy cylindrical blank roll 2, and the reciprocating cylinder 42 is arranged in a ring array, which can hit the surface of the titanium alloy cylindrical blank roll 2 at multiple angles and positions at the same time.

[0055] Wherein, since the reciprocating cylinders 42 are arranged in a ring array, it can ensure that the titanium alloy cylindrical blank roller 2 is uniformly hammered from multiple angles and directions, realizing uniform deformation of the internal structure of the material, avoiding local stress concentration, and uniform and comprehensive hammering helps to produce consistent plastic deformation within the entire workpiece volume, thereby promoting grain refinement and improving the overall strength and toughness of the material. Multi-directional hammering helps to close small gaps and holes inside the material and reduce porosity and shrinkage.

[0056] Embodiment three, the embodiment provides a technical scheme of the arc pushing assembly 8 in the hammering mechanism 7.

[0057] The hammering mechanism 7 comprises the arc pushing assembly 8, the arc pushing assembly 8 comprises a mounting ring 82, the mounting ring 82 is installed at one end of the top rod 48, and one end of the mounting ring 82 is connected with an arc top plate 81.

[0058] It is worth noting that when the top rod 48 moves, it will drive the mounting ring 82 to move, and the movement of the mounting ring 82 will push the arc top plate 81 to move, so that the arc top plate 81 pushes and hammers on the surface of the titanium alloy cylindrical blank roller 2, and the surface of the arc top plate 81 is arc-shaped, and through the cooperation of multiple groups of arc top plates 81, the titanium alloy cylindrical blank roller 2 can be hammered in multiple directions.

[0059] Wherein, the arc shape of the arc top plate 81 can better fit the surface profile of the titanium alloy cylindrical blank roller 2, ensuring that the force distribution is more uniform during hammering, producing consistent plastic deformation on the entire workpiece surface, avoiding local excessive stress or stress concentration, and through the cooperative work of multiple groups of arc top plates 81, a larger surface area can be covered, and pressure can be applied from multiple angles, further enhancing the uniformity of deformation. Uniform and comprehensive hammering helps to close small gaps and holes inside the material and reduce porosity and shrinkage.

[0060] Embodiment four, the embodiment provides a technical scheme of the wave pushing assembly 9 in the hammering mechanism 7.

[0061] The hammering mechanism 7 comprises the wave pushing assembly 9, the wave pushing assembly 9 comprises a sleeve 92, the sleeve 92 is installed at one end of the top rod 48, one end of the sleeve 92 is connected with a ridge top plate 91, and the surface of the ridge top plate 91 is wave-shaped.

[0062] It is worth noting that when the top rod 48 moves, it will drive the sleeve 92 to move, and the sleeve 92 will drive the ridge top plate 91 to hammer on the surface of the titanium alloy cylindrical blank roller 2. Since the surface of the ridge top plate 91 is wave-shaped, when the ridge top plate 91 hammers on the surface of the titanium alloy cylindrical blank roller 2, the surface of the titanium alloy cylindrical blank roller 2 is distorted, which can increase the coverage area of the coating when the subsequent coating treatment mechanism 5 sprays.

[0063] The wave shape of the ridge top plate 91 can cause the surface of the titanium alloy cylindrical blank roll 2 to be microscopically distorted or uneven during the hammering process, and the increase in surface roughness can significantly improve the adhesion and coverage area of the coating material during subsequent coating treatment, because more coating material can be embedded in these tiny concave-convex parts, forming a mechanical locking effect.

[0064] By increasing the roughness of the surface, the physical bonding between the coating and the substrate is strengthened, thereby improving the overall bonding strength and durability of the coating. The impact force during the hammering process helps to activate the diffusion mechanism of the internal atoms of the titanium alloy, promoting grain refinement, which not only enhances the hardness and strength of the material, but also improves its toughness.

[0065] In Example Five, the coating treatment mechanism 5 according to Example One is provided, and the technical solution of the coating treatment mechanism 5 is provided.

[0066] The coating treatment mechanism 5 includes an inner ring shell 56 and a plurality of conical nozzles 55 for spraying surface modifiers. The inner wall of the inner ring shell 56 is provided with a plurality of gas injection holes 57 for injecting oxidation protection gas.

[0067] The coating treatment mechanism 5 further includes an outer cylinder 54, which is installed on one side of the heat preservation layer 12. The inner ring shell 56 is installed on the inner wall of the outer cylinder 54 and forms a sealed space. The outer surface of the outer cylinder 54 is provided with a plurality of double pipes 53 that communicate with the interiors of the conical nozzles 55. The interiors of the plurality of double pipes 53 are collectively connected to a powder spraying ring pipe 58. The outer surface of the outer cylinder 54 is provided with a plurality of communication pipes 52 arranged in a ring array. The outer surfaces of the plurality of communication pipes 52 are collectively provided with an air vent ring pipe 51.

[0068] It is worth noting that after the titanium alloy cylindrical blank roll 2 is hammered by the hammering mechanism 7, the titanium alloy cylindrical blank roll 2 will be sent into the interior of the inner ring shell 56. The powder spraying ring pipe 58 sprays surface modifiers into the interiors of the conical nozzles 55 through the double pipes 53. The surface modifiers are sprayed out of the conical nozzles 55 and sprayed onto the surface of the titanium alloy cylindrical blank roll 2. The conical nozzles 55 are arranged in a ring array, which can spray the surface of the titanium alloy cylindrical blank roll 2 in all directions. After the surface modifiers are sprayed, the temperature control mechanism 1 is used for heating treatment, which ensures good combination and uniform distribution of the surface modifiers and the titanium alloy cylindrical blank roll 2.

[0069] And when the conical spraying part 55 sprays on the surface of the titanium alloy cylindrical blank roll 2, the air ring pipe 51 will fill the oxidation protective gas into the cavity between the outer cylinder 54 and the inner ring shell 56 through the connecting pipe 52, and the gas will be sprayed on the surface of the titanium alloy cylindrical blank roll 2 through the air injection hole 57, and the air injection hole 57 can spray the oxidation protective gas on the surface of the titanium alloy cylindrical blank roll 2 in all directions, so as to promote the atomic diffusion of the nitrogen oxidation protective gas into the surface layer of the titanium alloy cylindrical blank roll 2 during the subsequent heating process of the titanium alloy cylindrical blank roll 2 in the temperature control mechanism 1, and form a layer of high-hardness oxidation-resistant layer, thereby improving the wear resistance and corrosion resistance.

[0070] Wherein, by spraying the surface modifier and combining with the subsequent heating treatment, the surface modifier can be well combined with the surface of the titanium alloy cylindrical blank roll 2 to form a layer of high-hardness oxidation-resistant layer, and the protective layer not only improves the wear resistance of the material, but also effectively resists the erosion of the corrosion medium. The design of the annular array distribution of the conical spraying part 55 ensures that the surface modifier can be sprayed on the surface of the titanium alloy cylindrical blank roll 2 in all directions and uniformly. The air ring pipe 51 fills the oxidation protective gas into the cavity between the outer cylinder 54 and the inner ring shell 56 through the connecting pipe 52, and sprays it onto the surface of the titanium alloy cylindrical blank roll 2 through the air injection hole 57, which helps to prevent unnecessary oxidation reaction of the titanium alloy at high temperature heating, thereby maintaining its original characteristics and performance. During the heating process, the atoms in the nitrogen oxidation protective gas can diffuse into the surface layer of the titanium alloy cylindrical blank roll 2 to form a surface layer with higher hardness and better oxidation resistance.

[0071] In the embodiment one, the temperature control mechanism 1 is provided with the technical scheme.

[0072] The temperature control mechanism 1 comprises a heat preservation layer 12, the outer surface of the heat preservation layer 12 is provided with a support frame 11, a support frame 3 is installed on one side of the support frame 11, and the inner wall of the heat preservation layer 12 is provided with a graphite heating inner tube 13.

[0073] The support correction mechanism 6 comprises an inner support pipe 61, the inner support pipe 61 is fixedly installed on one side of the heat preservation layer 12, the inner wall of the inner support pipe 61 is provided with three groups of annular array distribution of stable frames 62, and the inner part of each stable frame 62 is rotatably installed with a pressure roller 63.

[0074] It is worth noting that after the titanium alloy cylindrical blank roll 2 is transported into the inside of the heat preservation layer 12, the titanium alloy cylindrical blank roll 2 is heated by the graphite heating inner tube 13, and then the titanium alloy cylindrical blank roll 2 will be sent to the position of the pressure roller 63 for straightening treatment;

[0075] Wherein, graphite as an excellent electric heating material, has good electrical conductivity and high temperature resistance, can provide uniform and efficient heating effect, ensure that the titanium alloy cylindrical blank roll 2 is evenly heated in the whole heating process, reduce the stress concentration or deformation caused by uneven temperature, appropriate heat treatment can promote the grain refinement in titanium alloy, thereby improving the mechanical properties of the material, such as strength, hardness and toughness, by controlling the heating temperature and time, the microstructure inside the titanium alloy can be optimized to achieve the best state.

[0076] The titanium alloy material after heating will shrink during cooling, and the straightening process in advance can help reduce the rebound effect of the material after cooling, and the heat treatment combined with the straightening process can help release the residual stress inside the material and reduce the stress concentration problem caused by work hardening or rapid cooling.

[0077] The application also provides a use method of the intelligent forging equipment based on seamless steel pipe processing, and the specific use method is as follows:

[0078] Step one, the titanium alloy cylindrical blank roll 2 is sent into the forging hammer mechanism 4 through the conveying roll, and the forging hammer mechanism 4 is arranged to hammer the titanium alloy cylindrical blank roll 2 through the hammering mechanism 7, so that the titanium alloy cylindrical blank roll 2 closes the small gaps and holes inside through hammering, and reduces the porosity and shrinkage in the material;

[0079] Step two, the titanium alloy cylindrical blank roll 2 is sent into the coating treatment mechanism 5 after being hammered by the forging hammer mechanism 4 for surface treatment, and the coating treatment mechanism 5 sprays surface modifier and oxidation protective gas to the surface of the titanium alloy cylindrical blank roll 2 at the same time, so as to perform plating treatment on the surface of the titanium alloy cylindrical blank roll 2;

[0080] Step three, after the titanium alloy cylindrical blank roll 2 is sprayed with the modifier and the oxidation protective gas by the coating treatment mechanism 5, the titanium alloy cylindrical blank roll 2 is sent into the inside of the temperature control mechanism 1 for heating treatment, so that the titanium alloy cylindrical blank roll 2 is in a high temperature state and is shaped by the supporting correction mechanism 6, the grain structure is refined, the mechanical properties of the material are enhanced, and the surface modifier and the oxidation protective gas adsorbed on the surface of the titanium alloy cylindrical blank roll 2 can obtain more uniform and fine grain structure after hot forging, improve the overall strength and toughness of the material, and form a reinforced layer on the surface to increase the wear resistance and corrosion resistance, and finally the titanium alloy cylindrical blank roll 2 is sent into the pipe making machine to be made into a seamless steel pipe.

[0081] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent forging equipment for seamless steel pipe processing, characterized in that: The utility model provides a kind of titanium alloy cylindrical blank roll (2) and temperature control mechanism (1) for heating titanium alloy cylindrical blank roll (2) to be heated and heated, the inside one side of the temperature control mechanism (1) is provided with the support correction mechanism (6) for the shaping straightening of titanium alloy cylindrical blank roll (2), one side of the temperature control mechanism (1) is provided with support frame (3), the inside of the support frame (3) is provided with the hammer mechanism (4) of simultaneously carrying out multidirectional hammering to titanium alloy cylindrical blank roll (2), the inside of the hammer mechanism (4) is provided with the hammering mechanism (7) of controlling the surface of titanium alloy cylindrical blank roll (2) and hammering shape, between the hammering mechanism (7) and temperature control mechanism (1) is provided with the coating treatment mechanism (5) of changing the surface property of titanium alloy cylindrical blank roll (2). The coating treatment mechanism (5) includes an inner ring shell (56) and a plurality of conical nozzles (55) for spraying surface modifiers, and the inner wall of the inner ring shell (56) is provided with a plurality of jet holes (57) for spraying oxidation protection gas.

2. The intelligent forging apparatus based on seamless steel pipe processing according to claim 1, characterized in that: The temperature control mechanism (1) includes a heat preservation layer (12), and the outer surface of the heat preservation layer (12) is provided with a support frame (11), the support frame (3) is installed on one side of the support frame (11), and the inner wall of the heat preservation layer (12) is provided with a graphite heating inner tube (13).

3. The intelligent forging apparatus based on seamless steel pipe processing according to claim 2, characterized in that: The support correction mechanism (6) includes an inner support tube (61) fixedly installed on one side of the heat preservation layer (12), and the inner wall of the inner support tube (61) is provided with three groups of annularly arranged stable frames (62), and the inner part of each stable frame (62) is rotatably installed with a compression roller (63).

4. The intelligent forging apparatus based on seamless steel pipe processing according to claim 2, characterized in that: The coating treatment mechanism (5) further includes an outer cylinder (54) installed on one side of the heat preservation layer (12), the inner ring shell (56) is installed on the inner wall of the outer cylinder (54) and forms a sealed space, the outer surface of the outer cylinder (54) is provided with a plurality of double pipes (53) in communication with the inside of the conical nozzles (55), a plurality of spray ring pipes (58) in common communication inside the double pipes (53), and the outer surface of the outer cylinder (54) is provided with a plurality of annularly arranged communication pipes (52), and the outer surfaces of a plurality of the communication pipes (52) are commonly provided with an air ring pipe (51).

5. The intelligent forging apparatus based on seamless steel pipe processing according to claim 1, characterized in that: The hammer mechanism (4) includes a support cylinder frame (41) installed in the inner part of the support frame (3) and installed on one side of the outer cylinder (54), and the outer surface of the outer cylinder (54) is provided with a waste port (45) at the bottom, and the outer surface of the support cylinder frame (41) is provided with a plurality of annularly arranged mounting grooves (44).

6. The intelligent forging apparatus based on seamless steel pipe processing according to claim 5, characterized in that: The inside of the mounting groove (44) is provided with a reciprocating cylinder (42), one end of the reciprocating cylinder (42) is provided with a gas jet (43), the inside of the gas jet (43) is provided with a pressure gas pipe (46), the inside of the reciprocating cylinder (42) is provided with a plug rod (47), and one side of the plug rod (47) is provided with a top rod (48).

7. The intelligent forging apparatus based on seamless steel pipe processing according to claim 1, characterized in that: The hammering mechanism (7) comprises an arc-shaped pushing assembly (8), the arc-shaped pushing assembly (8) comprises a mounting ring (82), one end of the mounting ring (82) is mounted on the top rod (48), and one end of the mounting ring (82) is connected with an arc-shaped top plate (81).

8. The intelligent forging apparatus based on seamless steel pipe processing according to claim 1, characterized in that: The hammering mechanism (7) comprises a wave-shaped pushing assembly (9), the wave-shaped pushing assembly (9) comprises a sleeve (92), one end of the sleeve (92) is mounted on the top rod (48), and one end of the sleeve (92) is connected with a ridge-shaped top plate (91).

9. The intelligent forging apparatus based on seamless steel pipe processing according to claim 8, characterized in that: The surface of the ridge-shaped top plate (91) is in a wave shape.

10. A method of using the intelligent forging apparatus for processing a seamless steel pipe according to any one of claims 1 to 9, characterized by, The specific use method is as follows: Step one, the titanium alloy cylindrical blank roll (2) is sent into the forging hammer mechanism (4) through the conveying roll, the forging hammer mechanism (4) is arranged, the titanium alloy cylindrical blank roll (2) is closed through the hammering mechanism (7) of the forging hammer mechanism (4), the small gap and the hole in the inside of the titanium alloy cylindrical blank roll (2) are closed, and the porosity and the shrinkage in the material inside are reduced; Step two, the titanium alloy cylindrical blank roll (2) is sent into the coating treatment mechanism (5) after being hammered by the forging hammer mechanism (4) to perform surface treatment, and the coating treatment mechanism (5) sprays the surface modifier and the oxidation protective gas to the surface of the titanium alloy cylindrical blank roll (2) at the same time, so that the surface of the titanium alloy cylindrical blank roll (2) is plated; Step three, after the surface of the titanium alloy cylindrical blank roll (2) is sprayed with the modifier and the oxidation protective gas by the coating treatment mechanism (5), the titanium alloy cylindrical blank roll (2) is sent into the inside of the temperature control mechanism (1) to perform heating treatment, so that the titanium alloy cylindrical blank roll (2) is in a high-temperature state and is shaped through the supporting correction mechanism (6), the crystal grain structure is refined, the mechanical properties of the material are enhanced, the surface modifier and the oxidation protective gas adsorbed on the surface of the titanium alloy cylindrical blank roll (2) are heated, more uniform and small crystal grain structures are obtained, the overall strength and toughness of the material are improved, and a reinforced layer is formed on the surface of the titanium alloy cylindrical blank roll (2), the wear resistance and the corrosion resistance are increased.

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