CN115138797A - Integrated forging forming method and forging device suitable for thrust wheel - Google Patents
Integrated forging forming method and forging device suitable for thrust wheel Download PDFInfo
- Publication number
- CN115138797A CN115138797A CN202210741276.XA CN202210741276A CN115138797A CN 115138797 A CN115138797 A CN 115138797A CN 202210741276 A CN202210741276 A CN 202210741276A CN 115138797 A CN115138797 A CN 115138797A
- Authority
- CN
- China
- Prior art keywords
- billet
- thrust wheel
- die holder
- forging
- upper die
- 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.)
- Granted
Links
- 238000005242 forging Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims description 7
- 230000003111 delayed effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/06—Swaging presses; Upsetting presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The application discloses an integrated forging forming method and a forging device suitable for a thrust wheel, wherein the forming method comprises the following steps: s100, heating the supporting wheel steel billet to a preset temperature; s200, removing oxide skin on the surface of the heated billet and ensuring that the temperature of the billet after the oxide skin is removed is kept between 1100 and 1200 ℃; s300, transferring the steel billet with the temperature kept between 1100 and 1200 ℃ into a lower die holder of the die; s400, moving the upper die base downwards at a preset first speed, and controlling the two side die bases to synchronously approach and extrude a billet at a preset second speed after delaying for a preset time to form an inner cavity of a thrust wheel with a connected skin, wherein the first speed is 1.5-4 times of the second speed; s500, opening the die, and removing connected skins in the inner cavity of the thrust wheel when the temperature is more than or equal to 800 ℃; the forming method and the forging device provided by the application can synchronously extrude and fill the appearance of the thrust wheel when the inner cavity of the thrust wheel is formed by forging and pressing, and ensure that the thrust wheel is formed by forging and pressing at one time.
Description
Technical Field
The invention relates to the technical field of thrust wheel forming, in particular to an integrated forging forming method and a forging device suitable for a thrust wheel.
Background
The thrust wheel belongs to a quick-wear part of the crawler-type engineering machinery, can transfer the mass of the whole machine to the ground, and bears the weight of the whole machine. In the driving process, the supporting wheels roll along the rail surface of the crawler belt and also clamp the limiting crawler belt, so that the crawler belt does not slide out in the transverse direction, and meanwhile, the crawler belt can stably slide in the transverse direction on the ground when the machine turns.
Most of the existing thrust wheels are forged in half bodies and then are formed in a welding mode, and if the application number CN201510244241.5, the closed forging process and the forging die for the thrust wheels are disclosed, the closed forging process and the forging die for the thrust wheels belong to closed dies, the thrust wheels are manufactured in half bodies, and are welded and formed after manufacturing, so that not only is the product flow line poor, but also the manufacturing efficiency is low, and the forging cost is high.
In addition, the thrust roller generates a large amount of scale on the surface in the conventional forging forming process, and the scale has the following main hazards:
1. the oxide skin can roughen the surface of the forging, and meanwhile, when the forging is carried out, if the oxide skin and the forging are pressed into the forging, the forging is very easy to damage, and the forging can directly become a waste product in serious cases;
2. the oxide skin has higher hardness, so that the energy consumption of forging deformation can be increased, the abrasion loss of the die can be accelerated, and the service life of the die can be shortened;
3. the oxide skin easily influences the surface quality of the product, reduces the yield of the product and influences the core competitiveness of an enterprise.
Finally, due to the diversity of the shapes of the thrust wheels, the existing upper and lower dies are difficult to realize the integrated forging and forming of the thrust wheels.
Disclosure of Invention
The invention has the advantages that before forging, oxide skin on the surface of a billet at high temperature is removed, then the extrusion time difference and the extrusion speed of the billet by using the upper die base and the side die base are utilized, the appearance of the thrust wheel can be synchronously extruded and filled when the inner cavity of the thrust wheel is formed by forging and pressing, the thrust wheel is ensured to be formed by forging and pressing at one time, further, on the premise of ensuring the forming quality of the thrust wheel, the forming efficiency of the thrust wheel is greatly improved, the enterprise cost is reduced, and the core competitiveness of an enterprise is improved.
One advantage of the present invention is to provide an integrated forging method and forging apparatus for a thrust wheel, wherein impact of high-speed water flow on a high-temperature billet is utilized to cut a compact iron sheet to form cracks, and then high-pressure water penetrates through the cracks and encounters a high-temperature base material to rapidly vaporize and evaporate, so as to form an effect similar to blasting, such that an oxide skin can be rapidly peeled off from the surface of the base material, thereby effectively ensuring the forming quality of the thrust wheel, and greatly reducing or even avoiding the damage of the oxide skin to a finished product.
One advantage of the present invention is to provide an integrated forging method and forging apparatus for a thrust wheel, in which the guiding and limiting structures correspondingly disposed on the upper die holder and the lower die holder can ensure that the upper die holder can accurately move in place, so as to ensure one-step forging and forming of the upper die holder, and ensure forming efficiency and forming quality of the thrust wheel.
An advantage of the present invention is to provide an integrated forging method and forging apparatus for a thrust wheel, in which a large spray coverage area can be formed in a unit time by a curved profile nozzle on a spray pipe and a spray inclination angle of 10 ° to 45 °, an efficiency of removing oxide scale is improved, and at the same time, a uniformity of impact pressure of water flow to a billet can be ensured by setting the spray inclination angle.
In order to achieve at least one of the above advantages, in a first aspect, the present invention provides an integrated forging and forming method for a thrust wheel, which includes the following steps in sequence:
s100, heating the thrust wheel steel billet to a preset temperature;
s200, removing oxide skin on the surface of the heated billet and ensuring that the temperature of the billet after the oxide skin is removed is kept between 1100 and 1200 ℃;
s300, transferring the steel billet with the temperature kept at 1100-1200 ℃ into a lower die holder of the die, wherein the die further comprises an upper die holder and a side die holder, the two sides of the side die holder can be synchronously close to or far away from the steel billet, the upper die holder and the lower die holder are correspondingly provided with a cavity for forming the appearance of the thrust wheel, and the inner side end of the side die holder is provided with an end seat and an ejector rod for forming the inner cavity of the thrust wheel;
s400, moving the upper die holder downwards at a preset first speed, utilizing the upper die holder and the lower die holder to extrude the appearance of a billet up and down, controlling the two side die holders to synchronously approach the billet at a preset second speed after delaying for a preset time, and extruding the billet at two ends of the billet to form an inner cavity of a thrust wheel with a connected skin, wherein the first speed is 1.5-4 times of the second speed;
s500, opening the die, and removing the connected skin in the inner cavity of the thrust wheel when the temperature is more than or equal to 800 ℃.
According to an embodiment of the invention, the first speed is between 0.6m/s and 0.8m/s.
According to an embodiment of the invention, the second speed is between 0.2m/s and 0.4m/s.
According to an embodiment of the present invention, the predetermined time of the delay is 2s to 4s.
According to an embodiment of the present invention, in step S200, the scale on the surface of the base material of the billet is peeled off by means of high-pressure water jet flushing.
In a second aspect, the invention further provides an integrated forging device suitable for the thrust wheel, wherein the forging device is used for the integrated forging forming method and comprises an upper die holder and a lower die holder which are arranged in an up-down symmetrical manner, side die holders arranged on two sides of the upper die holder and the lower die holder, and a punching machine;
the die comprises an upper die base, a lower die base, a first driving element and a second driving element, wherein the opposite side surfaces of the upper die base and the lower die base are correspondingly provided with a cavity for forming a thrust wheel, and the top of the upper die base is connected with the first driving element for driving the upper die base to move up and down;
the end seat is matched with the ejector rod and used for forming an inner cavity of a thrust wheel with a connecting skin, the end seat and the ejector rod are coaxially arranged, the ejector rod is connected with the side mold body through the end seat, and the outer side ends of the two side mold seats are respectively connected with a second driving element for synchronously driving the two side mold seats to be relatively close to or far away from each other;
the punching machine is used for removing connected skins in the inner cavity after the shape and the inner cavity of the thrust wheel are formed.
According to an embodiment of the present invention, the upper die base and the lower die base are correspondingly provided with guiding and limiting structures, wherein the guiding and limiting structures on the upper die base are implemented as first protrusions or second grooves, and the guiding and limiting structures on the lower die base are implemented as first grooves or second protrusions.
According to an embodiment of the invention, the integrated forging apparatus further comprises a descaler, wherein the descaler is provided with a high pressure water tank and an injection pipe communicated with the high pressure water tank, the injection pipe is provided with a water quantity regulating valve and a closing valve, the closing valve is positioned at the upstream of the water quantity regulating valve and close to the high pressure water tank, and the injection direction of the injection pipe and the surface of the billet form a preset inclination angle.
According to an embodiment of the present invention, the nozzle of the injection pipe has a plurality of nozzles, and the plurality of nozzles are uniformly distributed along a curvature, and the curvature of the nozzles matches with the curvature of the outer surface of the steel billet.
According to an embodiment of the present invention, an inclination angle formed between the injection direction of the injection pipe and the surface of the billet is 10 ° to 45 °.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description.
Drawings
Fig. 1 shows a schematic flow chart of the integral forging forming method for the thrust wheel.
Fig. 2 shows a partial structural schematic diagram of the integral forging device suitable for the thrust wheel.
Fig. 3 shows a partial structural schematic diagram of the integral forging device suitable for the thrust wheel.
FIG. 4 shows a front cross-sectional view of the side die holder and the thrust wheel distribution in the present application.
Fig. 5 shows a schematic view of the nozzle portion of the ejector tube in the present application.
Reference numerals are as follows: 10-an upper die holder, 11-a first bump, 101-a cavity, 20-a lower die holder, 201-a first groove, 30-a side die holder, 31-a side die body, 32-an end holder, 33-a mandril, 40-a thrust wheel, 41-a connecting skin, 50-an injection pipe and 501-a nozzle.
Detailed Description
The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the disclosure of the specification, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those illustrated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and, therefore, the terms should not be construed as limiting the invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
The inventor finds that the forging can eliminate the defects of as-cast porosity and the like generated in the smelting process of metal, optimize the microstructure, and meanwhile, due to the fact that a complete metal streamline is reserved, the key that the track wheels are installed on the crawler-type engineering machinery to ensure that the track cannot transversely slide out is achieved, and meanwhile, the key that the track can transversely slide on the ground is achieved when the machine turns is achieved, the mechanical performance of the forging is superior to that of a casting made of the same material, and the quality and the working performance are more stable.
Referring to fig. 1, an integrated forging and forming method for a bogie wheel according to a preferred embodiment of the present application will be described in detail below, wherein the integrated forging and forming method for a bogie wheel sequentially includes the following steps:
s100, heating the supporting wheel steel blank to a preset temperature through heating equipment such as an electric furnace and the like, wherein the temperature is generally more than 1200 ℃;
s200, removing oxide skin on the surface of the heated billet and ensuring that the temperature of the billet after the oxide skin removal is kept at 1100-1200 ℃, such as 1130 ℃, 1150 ℃ or 1180 ℃;
s300, transferring the steel billet with the temperature kept at 1100-1200 ℃ into a lower die holder of the die, wherein the die further comprises an upper die holder and a side die holder, the two sides of the side die holder can be synchronously close to or far away from the steel billet, the upper die holder and the lower die holder are correspondingly provided with a cavity for forming the appearance of the thrust wheel, and the inner side end of the side die holder is provided with an end seat and an ejector rod for forming the inner cavity of the thrust wheel;
s400, moving the upper die holder downwards at a preset first speed, utilizing the upper die holder and the lower die holder to extrude the outline of the billet vertically, delaying for a preset time so as to enable the outline of the thrust wheel to be approximately formed, controlling the two side die holders to be synchronously close to the billet at a preset second speed, and extruding the billet at two ends of the billet to form an inner cavity of the thrust wheel with connected skins, wherein the first speed is 1.5-4 times of the second speed;
and S500, opening the die, namely moving the upper die base upwards to reset, controlling the two side die bases to be synchronously far away, and removing connected skins in the inner cavity of the thrust wheel through equipment such as a punching machine when the temperature is higher than or equal to 800 ℃.
Because the thrust wheel needs the spacing track of centre gripping, avoids the track horizontal roll-off, simultaneously, when the machine turned to, the thrust wheel still need ensure the track can transversely slide on subaerial, consequently, the forging streamline of thrust wheel has the key effect of lifting the weight in crawler-type engineering machine. In the integral forging and pressing molding process, the upper die base is controlled to move downwards at first, the lower die base is matched to extrude a billet from top to bottom, the appearance of the thrust wheel is approximately molded firstly, then the side die bases on two sides are synchronously close to each other, and then the two ends of the billet are synchronously extruded inwards, and the inner cavity of the thrust wheel is molded through the end base and the ejector rod. Therefore, in the process of extruding the shape of the thrust wheel through the upper die base and the lower die base, the corners of the shape of the thrust wheel, the places with smaller size and the like with poorer forming quality can assist the forming of the shape of the thrust wheel to be improved through the inner cavity of the extruding and forming thrust wheel, so that the forming quality of the inner cavity and the shape of the thrust wheel is ensured, the forming efficiency of the thrust wheel is improved, the manufacturing cost of an enterprise is greatly saved, and the core competitiveness of the enterprise is improved.
In a preferred embodiment, the first speed is between 0.6m/s and 0.8m/s, such as 0.7m/s.
Further preferably, the second speed is between 0.2m/s and 0.4m/s, such as 0.3m/s.
The combination of the first speed and the second speed may be 0.6m/s to 0.2m/s, 0.7m/s to 0.2m/s, 0.8m/s to 0.2m/s, 0.7m/s to 0.3m/s, 0.7m/s to 0.4m/s, and 0.6m/s to 0.4m/s or 0.8m/s to 0.3m/s, 0.8m/s to 0.4m/s.
In addition, considering that the side die holder needs to form not only the inner cavity of the thrust wheel but also the profile of the thrust wheel in an auxiliary manner, if the delay time of the side die holder is short, such as 0.5s or 1.0s, the rough profile of the thrust wheel may not be formed yet, and if the delay time of the side die holder is long, once the temperature of the billet is lower than 1100 ℃, the forging forming of the thrust wheel is not facilitated, the forming time is long, and the forming quality is low, so it is further preferable that the predetermined time delayed by the side die holder is 2s to 4s, such as 2.5s, 3s or 3.5s. The calculation node of the delay time is that the outline of the thrust wheel is roughly or basically roughly formed, or the calculation is started from the forming of the parts except corners and small-sized parts, so that the corners and the small-sized parts are filled and formed through the inner cavity of the side die base forming thrust wheel, and the outline streamline of the thrust wheel is further perfected.
More preferably, in step S200, the scale on the surface of the base material of the billet is peeled off by means of high-pressure water jet washing. When high-pressure water flow is sprayed to the surface of the steel billet, a fan-shaped surface formed on the surface of the steel billet by the water flow is like a sharp blade, a compact iron sheet is cut, and cracks are formed, wherein the thinner fan-shaped surface has larger impact force. The high-pressure water penetrates through the crack and meets the high-temperature base material to be rapidly vaporized and evaporated to form an effect similar to blasting, the oxide skin and the base material are peeled, meanwhile, the oxide skin is impacted by water and then meets cold shrinkage, and the oxide skin on the surface of the base material of the glass billet can be rapidly generated by transverse shearing force generated by high-pressure water flow. In addition, the high-pressure water flow with a certain inclination angle, which refers to an included angle formed between the spraying direction of the water flow and the surface of the steel billet, is better in the washing effect on the loosened iron sheet, and the inclination angle is generally 10-45 degrees, such as 15 degrees, 25 degrees, 30 degrees or 35 degrees.
In a second aspect, based on the same inventive principle, the present application further provides an integrated forging apparatus suitable for a thrust wheel, which is used in the aforementioned integrated forging and forming method, and with reference to fig. 2 to 4, the apparatus includes an upper die holder 10 and a lower die holder 20 that are arranged in an up-down symmetrical manner, and side die holders 30 that are arranged on both sides of the upper die holder 10 and the lower die holder 20, and a punching machine;
the opposite side surfaces of the upper die holder 10 and the lower die holder 20 are correspondingly provided with a cavity 101 for forming a thrust wheel, and the top of the upper die holder 10 is connected with a first driving element, such as a hydraulic oil cylinder, for driving the upper die holder 10 to move up and down;
the side die holders 30 comprise side die bodies 31, end seats 32 and ejector rods 33, the end seats 32 are matched with the ejector rods 33 and used for forming inner cavities of the thrust wheels 40 with connected sheets 41, the connected sheets 41 are removed by the punching machine, the end seats 32 and the ejector rods 33 are coaxially arranged, the ejector rods 33 are connected with the side die bodies 31 through the end seats 32, and meanwhile, the outer side ends of the two side die holders 30 are respectively connected with second driving elements, such as hydraulic oil cylinders, used for synchronously driving the two side die holders 30 to be relatively close to or far away;
wherein the punch is used to remove the chain leather 41 in the inner cavity after the shape and inner cavity of the thrust wheel 40 are formed.
Obviously, it is obvious to the person skilled in the art that: the forging die is also provided with a controller which is used for controlling the coordinated and matched movement of the first driving element and the second driving element, wherein the coordinated and matched movement comprises the speed and the time of the up-and-down telescopic movement of the first driving element, the speed and the time of the telescopic movement of the second driving element in the horizontal direction, the time of the delayed movement of the second driving element relative to the first driving element and the like; the method also comprises the steps of controlling the speed and the time of the high-pressure water flow sprayed by the spray pipe on the subsequent descaling machine, and the like.
Preferably, the upper die holder 10 and the lower die holder 20 are correspondingly provided with guiding and limiting structures, wherein the guiding and limiting structures on the upper die holder 10 are implemented as first protrusions 11, and correspondingly, the guiding and limiting structures on the lower die holder 20 are correspondingly implemented as first grooves 201; alternatively, the guiding and limiting structure on the upper die holder 10 is implemented as a second groove, and the guiding and limiting structure on the lower die holder 20 is implemented as a second protrusion. Therefore, the accuracy of the moving direction of the upper die holder 10 and the accuracy of the moving distance of the upper die holder 10 can be ensured through the guiding and limiting structures on the upper die holder 10 and the lower die holder 20, and the forming quality of the appearance of the thrust wheel 40 can be effectively ensured.
Further preferably, the integrated forging device further comprises a descaling machine, wherein the descaling machine is provided with a high-pressure water tank and an injection pipe communicated with the high-pressure water tank, and a water quantity regulating valve and a closing valve are arranged on the injection pipe. The water quantity regulating valve is mainly used for regulating the flow rate of high-pressure water flow in the spray pipe, and the closing valve is mainly used for regulating the opening and closing of the spray pipe. The closing valve is positioned at the upstream of the water quantity regulating valve and close to the high-pressure water tank, wherein the spraying direction of the spraying pipe and the surface of the billet steel form a preset inclined angle, so that large concentrated impact force cannot be caused on the surface of the billet steel, and the spraying uniformity of high-pressure water flow is improved.
Further preferably, with reference to fig. 5, the spray pipe 50 has a plurality of nozzles 501, and the plurality of nozzles 501 are uniformly distributed along a curved arc, and the curved arc of the nozzles 501 matches with the curved arc of the outer surface of the billet, so that a large spray coverage can be formed in unit time, the descaling efficiency is improved, the amount of high-pressure water flow can be saved, the resources are saved, and the cost is reduced.
Further, an inclination angle formed between the injection direction of the injection pipe 50 and the surface of the billet is 10 ° to 45 °, such as 15 °,20 °, 25 °,30 °, 35 °, and the like. In general, under the same magnitude of flow impact force, the smaller the inclination angle, the larger the lateral shear force formed on the surface of the billet by the high-pressure water flow, and the faster the scale peeling speed, and the larger the inclination angle, the more the scale peeled off at one time from the surface of the billet by the high-pressure water flow, and therefore, the inclination angle formed between the injection direction of the injection pipe 50 and the surface of the billet is very limited, and comprehensive coordination is required to improve the scale peeling efficiency on the surface of the base material.
The billet comprises an internal base material and an oxide scale or an iron scale attached to the surface of the base material.
It should be noted that the terms "first and second" in the present invention are used for descriptive purposes only, do not denote any order, are not to be construed as indicating or implying any relative importance, and are to be interpreted as names.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. The integral forging forming method suitable for the thrust wheel is characterized by sequentially comprising the following steps of:
s100, heating the supporting wheel steel billet to a preset temperature;
s200, removing oxide skin on the surface of the heated billet and ensuring that the temperature of the billet after the oxide skin is removed is kept between 1100 and 1200 ℃;
s300, transferring the steel billet with the temperature kept at 1100-1200 ℃ into a lower die holder of the die, wherein the die further comprises an upper die holder and a side die holder, the two sides of the side die holder can be synchronously close to or far away from the steel billet, the upper die holder and the lower die holder are correspondingly provided with a cavity for forming the appearance of the thrust wheel, and the inner side end of the side die holder is provided with an end seat and an ejector rod for forming the inner cavity of the thrust wheel;
s400, moving the upper die holder downwards at a preset first speed, utilizing the upper die holder and the lower die holder to extrude the appearance of a billet up and down, controlling the two side die holders to synchronously approach the billet at a preset second speed after delaying for a preset time, and extruding the billet at two ends of the billet to form an inner cavity of a thrust wheel with a connected skin, wherein the first speed is 1.5-4 times of the second speed;
s500, opening the die, and removing the connected skin in the inner cavity of the thrust wheel when the temperature is more than or equal to 800 ℃.
2. The integrated forging forming method as recited in claim 1, wherein the first speed is 0.6m/s to 0.8m/s.
3. The integrated forging forming method as recited in claim 2, wherein the second speed is 0.2m/s to 0.4m/s.
4. The integrated forging forming method as recited in claim 1 to 3, wherein the predetermined time delayed is 2s to 4s.
5. The integrated forging and forming method according to claim 4, wherein in step S200, scale on the surface of the base material of the billet is peeled off by a high-pressure water jet washing method.
6. The integrated forging device suitable for the thrust wheel is used for the integrated forging forming method of any one of claims 1 to 5, and comprises an upper die base and a lower die base which are arranged in an up-and-down symmetrical mode, side die bases arranged on two sides of the upper die base and the lower die base, and a punching machine;
the die comprises an upper die base, a lower die base, a first driving element and a second driving element, wherein the opposite side surfaces of the upper die base and the lower die base are correspondingly provided with a cavity for forming a thrust wheel, and the top of the upper die base is connected with the first driving element for driving the upper die base to move up and down;
the side die bases comprise side die bodies, end bases and ejector rods, the end bases are matched with the ejector rods and used for forming inner cavities of the thrust wheels with connected skins, the end bases and the ejector rods are coaxially arranged, the ejector rods are connected with the side die bodies through the end bases, and the outer side ends of the two side die bases are respectively connected with second driving elements used for synchronously driving the two side die bases to be relatively close to or far away from each other;
the punching machine is used for removing connected skins in the inner cavity after the shape and the inner cavity of the thrust wheel are formed.
7. The integrated forging apparatus of claim 6, wherein the upper die holder and the lower die holder are respectively provided with a guiding and limiting structure, wherein the guiding and limiting structure on the upper die holder is implemented as a first protrusion or a second groove, and the guiding and limiting structure on the lower die holder is implemented as a first groove or a second protrusion.
8. The integrated forging apparatus as recited in claim 7, further comprising a descaling machine, wherein the descaling machine is provided with a high-pressure water tank and an injection pipe communicating with the high-pressure water tank, wherein the injection pipe is provided with a water amount adjusting valve and a shut-off valve, the shut-off valve being located upstream of the water amount adjusting valve and near the high-pressure water tank, and wherein an injection direction of the injection pipe is formed with a predetermined inclination angle with respect to a surface of the slab.
9. The integrated forging apparatus as recited in claim 8, wherein the nozzle of the injection pipe has a plurality of nozzles, and the plurality of nozzles are uniformly distributed along a curvature that matches a curvature of an outer surface of the billet.
10. The integrated forging apparatus as recited in claim 9, wherein an inclination angle formed between an injection direction of the injection pipe and a surface of the billet is 10 ° to 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741276.XA CN115138797B (en) | 2022-06-28 | 2022-06-28 | Integral forging forming method and forging device suitable for thrust wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741276.XA CN115138797B (en) | 2022-06-28 | 2022-06-28 | Integral forging forming method and forging device suitable for thrust wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115138797A true CN115138797A (en) | 2022-10-04 |
| CN115138797B CN115138797B (en) | 2024-08-23 |
Family
ID=83411088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210741276.XA Active CN115138797B (en) | 2022-06-28 | 2022-06-28 | Integral forging forming method and forging device suitable for thrust wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115138797B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007010774A1 (en) * | 2005-07-20 | 2007-01-25 | Ntn Corporation | Process for producing bearing device for wheel |
| CN101181730A (en) * | 2007-12-07 | 2008-05-21 | 江阴隆澄钻采机械制造有限公司 | Drill pipe joint precision die forging process |
| CN102873240A (en) * | 2012-09-27 | 2013-01-16 | 许昌中兴锻造有限公司 | Non-flash forging process for middle flanges of transmission shafts |
| CN104907471A (en) * | 2015-05-13 | 2015-09-16 | 徐州徐工履带底盘有限公司 | Supporting wheel closed forging process and forging die |
| CN105057529A (en) * | 2015-08-20 | 2015-11-18 | 西北工业大学 | Extrusion forming method for hollow shaft forged piece with variable cross section |
| CN105170665A (en) * | 2015-08-26 | 2015-12-23 | 武汉钢铁(集团)公司 | Method for removing iron oxide scale from surface of strip steel efficiently |
| CN108421951A (en) * | 2018-03-23 | 2018-08-21 | 韶关市中机重工股份有限公司 | EMU driving device wheel hub forging mold and its production technology |
| CN108994231A (en) * | 2018-07-12 | 2018-12-14 | 郑州卓锐机械制造有限公司 | A kind of large and medium-sized oil cylinder forging and stamping molding method of blank of mine hydraulic bracket |
| CN109351909A (en) * | 2018-11-15 | 2019-02-19 | 南阳市红阳锻造有限公司 | A kind of heavy-duty truck wheel hub forging technology |
| CN110170609A (en) * | 2019-06-10 | 2019-08-27 | 郑州机械研究所有限公司 | Band flange cage housing precision plastic forming process and mold |
| CN112222342A (en) * | 2020-09-11 | 2021-01-15 | 郑州机械研究所有限公司 | Hot extrusion forming device and process for steel diesel engine piston |
| CN112718855A (en) * | 2020-11-30 | 2021-04-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Hypereutectoid steel rail and preparation method thereof |
| CN214290049U (en) * | 2021-01-06 | 2021-09-28 | 赛文斯新型材料(无锡)有限公司 | Continuous casting billet phosphorus removal device |
| KR102356668B1 (en) * | 2020-08-03 | 2022-02-07 | 주식회사 알루포스 | Manufacturing method and apparatus for complicated shaped disk alloy wheel |
-
2022
- 2022-06-28 CN CN202210741276.XA patent/CN115138797B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007010774A1 (en) * | 2005-07-20 | 2007-01-25 | Ntn Corporation | Process for producing bearing device for wheel |
| CN101181730A (en) * | 2007-12-07 | 2008-05-21 | 江阴隆澄钻采机械制造有限公司 | Drill pipe joint precision die forging process |
| CN102873240A (en) * | 2012-09-27 | 2013-01-16 | 许昌中兴锻造有限公司 | Non-flash forging process for middle flanges of transmission shafts |
| CN104907471A (en) * | 2015-05-13 | 2015-09-16 | 徐州徐工履带底盘有限公司 | Supporting wheel closed forging process and forging die |
| CN105057529A (en) * | 2015-08-20 | 2015-11-18 | 西北工业大学 | Extrusion forming method for hollow shaft forged piece with variable cross section |
| CN105170665A (en) * | 2015-08-26 | 2015-12-23 | 武汉钢铁(集团)公司 | Method for removing iron oxide scale from surface of strip steel efficiently |
| CN108421951A (en) * | 2018-03-23 | 2018-08-21 | 韶关市中机重工股份有限公司 | EMU driving device wheel hub forging mold and its production technology |
| CN108994231A (en) * | 2018-07-12 | 2018-12-14 | 郑州卓锐机械制造有限公司 | A kind of large and medium-sized oil cylinder forging and stamping molding method of blank of mine hydraulic bracket |
| CN109351909A (en) * | 2018-11-15 | 2019-02-19 | 南阳市红阳锻造有限公司 | A kind of heavy-duty truck wheel hub forging technology |
| CN110170609A (en) * | 2019-06-10 | 2019-08-27 | 郑州机械研究所有限公司 | Band flange cage housing precision plastic forming process and mold |
| KR102356668B1 (en) * | 2020-08-03 | 2022-02-07 | 주식회사 알루포스 | Manufacturing method and apparatus for complicated shaped disk alloy wheel |
| CN112222342A (en) * | 2020-09-11 | 2021-01-15 | 郑州机械研究所有限公司 | Hot extrusion forming device and process for steel diesel engine piston |
| CN112718855A (en) * | 2020-11-30 | 2021-04-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Hypereutectoid steel rail and preparation method thereof |
| CN214290049U (en) * | 2021-01-06 | 2021-09-28 | 赛文斯新型材料(无锡)有限公司 | Continuous casting billet phosphorus removal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115138797B (en) | 2024-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102162574B (en) | Ultrahigh-strength steel laser tailor welded blank and forming process thereof | |
| CN108500189A (en) | A kind of molding die with straight-edge conical cylinder forging and forging process for fuel method | |
| CN107234443B (en) | Three-dimensional variable-curvature section bar on-line bending forming device actively drawn by robot | |
| CN101513664A (en) | Efficient forging method using curved-surface swage blocks | |
| WO2010051754A1 (en) | Broad-width extrusion device and extrusion process thereof | |
| CN102729048A (en) | Aluminium alloy bumper bar section bar bending forming method and device for automobile | |
| CN105665443A (en) | Rolling technology of producing pipeline steel of extreme specifications through wide-heavy plate mill | |
| CN109692911B (en) | Integral forming device and method for large-scale ring shell part | |
| CN109396368A (en) | A method of improving high-carbon steel bloom continuous casting base internal soundness | |
| CN105598399A (en) | Production method of ultra-thickness casting blank | |
| EP0241919B1 (en) | Method of and apparatus for effecting a thickness-reduction rolling of a hot thin plate material | |
| CN115301869A (en) | Three-way pipeline piece forging die and precision forging process forming method thereof | |
| CN111390086A (en) | Method for producing forge piece by unstability forging of continuous casting plate blank | |
| CN115138797A (en) | Integrated forging forming method and forging device suitable for thrust wheel | |
| CN110076252A (en) | The manufacturing process of middle heavy wall integral automobile driving axle housing bridge arch | |
| CN102357628A (en) | Method for forming aluminum alloy branch forgings | |
| CN110090861A (en) | A kind of efficient endless rolling method of simple shape | |
| CN113976789A (en) | Hollow reducing extrusion forming process method for titanium alloy thin-wall super-large cone angle special-shaped ring forging with inner and outer flange structures | |
| CN111136121A (en) | Hot-expanding cold-forging repair device and repair method | |
| CN111375714A (en) | Forging method for improving yield of electroslag ingot H13 large flat blank | |
| CN110560485A (en) | Hot-rolled strip steel endless rolling intermediate billet connecting system and method | |
| CN214639975U (en) | Step-by-step upsetting combined device of free forging hydraulic machine for large alloy steel ingot with high-diameter ratio | |
| CN211803735U (en) | Continuous casting machine for producing special-shaped blank | |
| CN212042496U (en) | Novel six-cylinder crankshaft rolling die | |
| CN107116171A (en) | A kind of complicated forging part base loose tool of thin plate class and manufacturing process |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |