CN113000767A - Forging seat for forming low-L-shaped wear-resistant lining plate and lining plate forming method - Google Patents
Forging seat for forming low-L-shaped wear-resistant lining plate and lining plate forming method Download PDFInfo
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- CN113000767A CN113000767A CN202110227207.2A CN202110227207A CN113000767A CN 113000767 A CN113000767 A CN 113000767A CN 202110227207 A CN202110227207 A CN 202110227207A CN 113000767 A CN113000767 A CN 113000767A
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- 238000005242 forging Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 28
- 238000000465 moulding Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
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- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
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- 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
- B21J13/03—Die mountings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a forging seat for forming a low-L-shaped wear-resistant lining plate and a lining plate forming method, wherein the forging seat comprises an upper seat and a lower seat, the upper seat and the lower seat are matched for use, the upper surface of the lower seat is provided with a first groove, and the lower surface of the upper seat is provided with an installation surface forming surface; the first groove and the mounting surface forming surface enclose a low L-shaped wear-resistant lining plate forming space; the lining plate forming method uses the forging seat for forming the low-L-shaped wear-resistant lining plate to forge and form. The forging seat for forming the low-L-shaped wear-resistant lining plate solves the problems that a larger press is required, the variety of die forging dies is large, and the price investment is high in the prior art, and the yield is higher than 70%, the rough material processing is less, and the production cost is low when the forging seat is used for forging the lining plate for forming. The lining plate obtained by the method has high mechanical property, good wear resistance and reduced breakage rate.
Description
Technical Field
The invention belongs to the technical field of wear-resistant lining plate processing, relates to wear-resistant lining plate processing equipment and a method, and particularly relates to a forging seat for forming an L-shaped wear-resistant lining plate and a forming method of the L-shaped wear-resistant lining plate.
Background
The common semi-autogenous mill and autogenous mill have dozens of models, the diameter is 3-15 meters, the length is 2-10 meters, and the cylinder body of each diameter comprises an annular mill cylinder body consisting of 20-70 lining plates. The diameter and length of each semi-autogenous mill cylinder are different, and each semi-autogenous mill has dozens of liner plates with different sizes and shapes. According to the functional division, the lining plates are divided into a cylinder lining plate, an angle lining plate, a feeding end lining plate, an ore pulp lifter, an intermediate discharging plate, a discharging grid plate and the like.
However, the inventor finds that the technology has at least the following technical problems in the long-term use process:
(1) the thickness of the lining plate of the semi-autogenous mill is 30-400 mm, the length is about 2m, the section is large, the structural shape is complex, the existing wear-resistant lining plate is cast and formed and is easy to break and lose efficacy, and therefore the service life is about 4 months.
(2) The steel forging and forming includes free forging and die forging.
The basic processes of free forging include upsetting, drawing, punching, cutting, bending, twisting, misalignment, and the like. The working surface of the free forging machine comprises an upper seat and a lower seat. The upper seat and the lower seat have the same length, and the working surfaces are both planes. In the conventional technology, if the upper seat and the lower seat are set to be non-planar, the forging is lengthened but not concentric in the production process, the machining allowance of the non-concentric forging must be increased, the later machining allowance is increased, and the cost is increased.
The die forging is open die forging and closed die forging, and a metal blank is pressed and deformed in a die cavity with a certain shape to obtain a forge piece, so that a die is required for each model of die forging. However, the semi-autogenous mill wear-resistant lining plate has the defects of multiple models, complex configuration, large die forging pressure, transition angle and the like, so that a large amount of finish machining is needed after free forging, and a large amount of dies are needed for die forging.
Fig. 2 is a schematic end view of the low L wear liner of the present invention. The left side low part is the crushing part, and the right side bulge part is the promotion portion, and the height of promotion portion is the twice below of crushing part height, and the bottom surface is the installation face. According to fig. 2, when viewed clockwise from the mounting surface, the surfaces of the low L-shaped wear-resistant lining plate are respectively a mounting surface, a first splicing surface, a first lifting surface, a lifting top surface, a second lifting surface, a transition surface, a crushing surface and a second splicing surface. The mounting surface is the surface of connecting the wear-resistant lining plate and the mill outer cylinder body. In the mill inner cylinder body, an annular mill cylinder body is formed by 20-70 lining plates, namely, a first splicing surface of one wear-resistant lining plate is attached to a second splicing surface of an adjacent wear-resistant lining plate. The second lifting surface makes a linear transition to the crushing surface, the transition part being a transition surface. In the prior art, a forging seat for forming the low-L-shaped wear-resistant lining plate does not exist.
Disclosure of Invention
In view of the above, the present invention aims to provide a forging seat for forming a low L-shaped wear-resistant lining plate.
The invention also aims to provide a forming method for forging the low-L-shaped wear-resistant lining plate by using the forging seat.
The invention provides a forging seat for forming a low-L-shaped wear-resistant lining plate, which comprises an upper seat and a lower seat, wherein the upper seat and the lower seat are matched for use, a first groove is formed in the upper surface of the lower seat, and an installation surface forming surface is formed in the lower surface of the upper seat; the first groove and the mounting surface forming surface enclose a low L-shaped wear-resistant lining plate forming space.
According to one embodiment of the forging seat for forming the low-L-shaped wear-resistant lining plate, the first groove is a stepped groove with an upward opening, and the stepped groove comprises a first splicing surface forming surface, a crushing surface forming surface, a transition surface forming surface, a second lifting surface forming surface, a lifting top surface forming surface, a first lifting surface forming surface and a second splicing surface forming surface which are sequentially connected.
According to one embodiment of the forging seat for forming the low-L-shaped wear-resistant lining plate, the forming surface of the mounting surface is wholly or partially a plane, a concave surface or a convex surface.
According to one embodiment of the forging seat for forming the low-L-shaped wear-resistant lining plate, the width of the forming surface of the mounting surface is 100-800 mm.
According to one embodiment of the forging press seat for forming the low-L wear-resistant lining plate, the lifting angle of the first lifting surface formed by the first lifting surface forming surface is 10 to 50 degrees, and the lifting angle of the second lifting surface formed by the second lifting surface forming surface is 10 to 50 degrees.
According to one embodiment of the forging seat for forming the low-L-shaped wear-resistant lining plate, the forming surface of the crushing surface is a plane, a curved surface or a concave-convex surface; the generating line of the curved surface is a straight line or an arc line, and the conducting wire of the curved surface is a sawtooth line, a wavy line or an arc line.
According to one embodiment of the forging press seat for forming the low-L-shaped wear-resistant lining plate, the first lifting surface forming surface, the lifting top surface forming surface and the second lifting surface forming surface enclose a trapezoidal, triangular, herringbone or semicircular groove.
According to one embodiment of the forging seat for forming the low-L-shaped wear-resistant lining plate, the crushing surface forming surface forms a first-stage step bottom surface with the depth of 50-300 mm, and the lifting top surface forming surface forms a second-stage step bottom surface with the depth of 100-400 mm.
According to one embodiment of the forging seat for forming the low-L-shaped wear-resistant lining plate, the second lifting surface forming surface and the crushing surface forming surface are in linear transition forming through the transition surface forming surface, and the transition surface forming surface is a cambered surface or a plane.
The invention also provides a liner plate forming method based on the forging seat for forming the low-L-shaped wear-resistant liner plate, which comprises the following steps:
a) casting the alloy into a steel ingot by a smelting and refining process, carrying out hot delivery to a forging press, adopting a conventional forging machine to parallel an upper seat and a lower seat, completing upsetting and drawing, and forging and pressing the steel ingot into a square billet; the cross section of the square billet is rectangular or square;
b) replacing and installing a lower seat with a first groove and an upper seat with an installation surface forming surface, horizontally placing the square billet in the step a) on a crushing surface forming surface for forging, and completing the forming of a first splicing surface forming surface, the crushing surface forming surface, a transition surface forming surface, a second lifting surface forming surface, a lifting top surface forming surface, a first lifting surface forming surface and a second splicing surface forming surface on the lower seat; finishing the molding of the mounting surface under the action of the upper seat; the length of the formed forge piece gradually extends to a terminal point according to the width of the upper base and the lower base of the forging machine and the length of the forging stock;
c) and cutting the formed forging according to the size of the mill, and then welding and finely machining the formed forging into the shape of the casting lining plate.
Compared with the prior art, one of the technical solutions has the following advantages:
the forging seat for forming the low-L-shaped wear-resistant lining plate solves the problems that a larger press is required, the variety of die forging dies is large, and the price investment is high in the prior art, and the yield is higher than 70%, the rough material processing is less, and the production cost is low when the forging seat is used for forging the lining plate for forming. The lining plate obtained by the method has high mechanical property, good wear resistance and reduced breakage rate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a preferred embodiment of a forging seat for forming a low-L-shaped wear-resistant lining plate according to the present invention.
FIG. 2 shows a low-L-shaped wear-resistant lining board formed by forging and pressing the low-L-shaped wear-resistant lining board with the forging and pressing seat.
FIG. 3 is a diagram of the effect of filling the low L-shaped wear liner in the forging seat.
The labels in the figure are respectively: 1 a lining board is arranged on the base plate,
100 of the lower seat is arranged on the lower seat,
101 a first splicing surface forming surface,
102 a second splicing surface forming surface, and a second splicing surface forming surface,
103 a first lifting surface forming surface,
104 to raise the top molding surface,
105 a second lifting surface forming surface of the second lifting surface,
106 transition surface forming surface of the base plate,
107 crushing surface forming surfaces of the crushing surfaces,
200 of the upper seat of the water tank,
201 mounting a surface molding surface.
Detailed Description
The following description is made with reference to the accompanying drawings and a specific embodiment.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
Example 1
The forging seat described in the embodiment is used for forming the low-L-shaped wear-resistant lining plate, referring to fig. 2, the low part on the left side of the low-L-shaped wear-resistant lining plate is a crushing part, the protruding part on the right side is a lifting part, the height of the lifting part is less than twice of the height of the crushing part, and the bottom surface is an installation surface. According to fig. 2, when viewed clockwise from the mounting surface, the surfaces of the low L-shaped wear-resistant lining plate are respectively a mounting surface, a first splicing surface, a first lifting surface, a lifting top surface, a second lifting surface, a transition surface, a crushing surface and a second splicing surface. The mounting surface is the surface of connecting the wear-resistant lining plate and the mill outer cylinder body. In the mill inner cylinder body, an annular mill cylinder body is formed by 20-70 lining plates, namely, a first splicing surface of one wear-resistant lining plate is attached to a second splicing surface of an adjacent wear-resistant lining plate. The second lifting surface makes a linear transition to the crushing surface, the transition part being a transition surface.
Referring to fig. 1, in the forging seat upper seat 200 and the lower seat 100 for forming the low-L-shaped wear-resistant lining plate described in this embodiment, the upper seat 200 and the lower seat 100 are used in a matching manner, and the upper surface of the lower seat 100 is provided with a first groove which is a stepped groove opened upward. According to fig. 1, the first splicing surface forming surface 101, the crushing surface forming surface 107, the transition surface forming surface 106, the second lifting surface forming surface 105, the lifting top surface forming surface 104, the first lifting surface forming surface 103 and the second splicing surface forming surface 102 are sequentially arranged from left to right in a linear transition mode to form a first groove. Crushing face profiled surface 107 constitutes the bottom surface of the one-level ladder that the degree of depth is 50 ~ 300mm, promote top surface profiled surface 104 and constitute the second grade ladder bottom surface that the degree of depth is 100 ~ 400mm, the total depth of second grade ladder is not more than the twice of one-level ladder depth. The depth of the lifting top surface forming surface 104 is too deep, and the contact between the forging material and the second lifting surface forming surface 105, the lifting top surface forming surface 104 and the first lifting surface forming surface 103 is insufficient, which is not beneficial to the forming of the lifting part.
The lifting surface of the wear liner is typically a beveled surface. The first lifting angle of the first lifting surface formed by the first lifting surface forming surface 103 is 10-50 degrees, and the second lifting angle of the second lifting surface formed by the second lifting surface forming surface 105 is 10-50 degrees. The first and second lift angles may be equal or unequal in angle. The first lifting surface forming surface 103, the lifting top surface forming surface 104 and the second lifting surface forming surface 105 enclose a trapezoidal, triangular, herringbone or semicircular groove, and the lifting part of the formed wear-resistant lining plate is trapezoidal, triangular, herringbone or semicircular. In this embodiment, the first lifting surface forming surface 103, the lifting top surface forming surface 104 and the second lifting surface forming surface 105 form a semi-circle.
All or part of the crushing surface forming surface 107 is a plane, a curved surface or a concave-convex surface; the generating line of the curved surface is a straight line or an arc line, and the conducting wire of the curved surface is a sawtooth line, a wavy line or an arc line. In this embodiment, the crushing surface forming surface 107 is a flat surface, the transition surface forming surface 106 is a curved surface or a flat surface, and the transition surface forming surface 106 is formed by linear transition from the second lifting surface forming surface 105 to the crushing surface forming surface 107. In this embodiment, the transition surface forming surface 106 is an arc surface. The transition surface forming surface 106 is an arc surface, so that the contact of the forging material between the second step and each forming surface is more sufficient, and the filling is more complete. In addition, the formed lining plate has better shock resistance and longer service life.
The lower surface of the upper seat 200 is provided with an installation surface forming surface 201; the mounting surface forming surface 201 is an arc concave surface, and may be a plane, a convex arc surface, an alternate arrangement of partial planes and arc surfaces, or an alternate arrangement of concave surfaces and convex surfaces. The width of the mounting surface molding surface 201 is specifically set according to the specification requirement of the lining plate on the mill cylinder body, and generally, the width of the mounting surface molding surface is within the range of 100-800 mm. The mill cylinder is assembled by 44 wear-resistant lining plates, the circular angle of the arc corresponding to the mounting surface of each lining plate is 8.18 degrees, namely the included angle between the first splicing surface and the second splicing surface is 8.18 degrees, or the included angle between the first splicing surface molding surface 101 and the second splicing surface molding surface 102 is 8.18 degrees.
The first groove and the mounting surface forming surface 201 enclose a low-L-shaped wear-resistant lining plate forming space.
Example 2
In the present embodiment, the liner plate is formed by the forging press base described in embodiment 1. The method for forming the lining plate comprises the following steps:
a) the alloy is cast into steel ingots by smelting and refining processes, the steel ingots are sent to a forging press by heat, a conventional forging press is adopted to parallel an upper seat and a lower seat, and the steel ingots are forged and pressed into square billets after twice upsetting and drawing processes. The number of upsetting and drawing processes can exceed two, and the purposes of refining grains, changing inclusion core states, forging internal defects and eliminating segregation are achieved through upsetting and drawing, so that a square blank initial section or a rectangular blank initial section, preferably a rectangular blank initial section, is completed; and directly replacing the lower seat 100 with a first groove and the upper seat 200 with a mounting surface forming surface after the rough forging, and entering a lining plate forming process.
b) Replacing and installing a lower seat 200 with a first groove and an upper seat 100 with a mounting surface forming surface, horizontally placing the square billet in the step a) on a crushing surface forming surface 107 for forging, and completing the forming of a first splicing surface forming surface, a crushing surface forming surface, a transition surface forming surface, a second lifting surface forming surface, a lifting top surface forming surface, a first lifting surface forming surface and a second splicing surface forming surface on the lower seat of the upset and drawn square billet; and the mounting surface is molded under the action of the upper seat. Referring to fig. 3, the contact condition of the forging material and each forming surface in the forging and pressing forming process of the forging material, and the dark area in fig. 3 is the contact surface of the forging material and the first groove, that is, the filling effect finite element simulation condition of the forging material in the forming space of the wear-resistant lining plate. The length of the formed forging piece gradually extends to a terminal point according to the width of the upper base and the lower base of the forging machine and the length of the forging stock. The square billet is placed the position and the mode of placing, influences the shaping effect of shaping forging, and research shows that, square billet level is placed on crushing face profiled surface 107, and the shaping effect of shaping forging is best. After the pressure forming, promote upper seat 200, lower seat 100 adopts the free stroke of machine itself and manipulator to mutually support progressively to move forward, perhaps adopts the manipulator to progressively remove the forging stock, and upper seat 200 is the pressure forming again, guarantees that whole wear-resisting welt does not take place to deviate on a straight line, and the length of wear-resisting welt extends to and takes out about 3 m.
c) And cutting the formed forging according to the size of the mill, and then welding and finely machining the formed forging into the shape of the casting lining plate. And cutting the wear-resistant lining plates into wear-resistant lining plates with different lengths according to requirements after the forging and pressing molding is finished. And forging the forging stock, and then performing mechanical forming processing, including welding and processing forming of the auxiliary part, the mounting hole and the hoisting ring of the wear-resistant lining plate.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. A forging and pressing seat for forming a low-L-shaped wear-resistant lining plate is characterized in that the forging and pressing seat comprises an upper seat and a lower seat, and the upper seat and the lower seat are matched for use; the first groove and the mounting surface forming surface enclose a low L-shaped wear-resistant lining plate forming space.
2. The forging seat for forming the low-L-shaped wear-resistant lining plate according to claim 1, wherein the first groove is an upward-opening stepped groove and comprises a first splicing surface forming surface, a crushing surface forming surface, a transition surface forming surface, a second lifting surface forming surface, a lifting top surface forming surface, a first lifting surface forming surface and a second splicing surface forming surface which are sequentially connected.
3. The forging seat for forming the low-L-shaped wear-resistant lining plate according to claim 1 or 2, wherein the forming surface of the mounting surface is wholly or partially a plane, a concave surface or a convex surface.
4. The forging seat for forming the low-L-shaped wear-resistant lining plate according to claim 3, wherein the width of the forming surface of the mounting surface is 100-800 mm.
5. The swage mount for forming a low-L wear-resistant liner according to claim 2, wherein a lift angle of a first lift surface formed by the first lift surface forming surface is 10 ° to 50 °, and a lift angle of a second lift surface formed by the second lift surface forming surface is 10 ° to 50 °.
6. The forging seat for forming the low-L-shaped wear-resistant lining plate according to claim 2, wherein the forming surface of the crushing surface is a plane, a curved surface or a concave-convex surface; the generating line of the curved surface is a straight line or an arc line, and the conducting wire of the curved surface is a sawtooth line, a wavy line or an arc line.
7. The forging press seat for forming the low-L-shaped wear-resistant lining plate according to claim 2, wherein the first lifting surface forming surface, the lifting top surface forming surface and the second lifting surface forming surface enclose a trapezoidal, triangular, herringbone or semicircular groove.
8. The forging and pressing base for forming the low-L-shaped wear-resistant lining plate according to claim 2, wherein the crushing surface forming surface forms a primary stepped bottom surface with a depth of 50-300 mm, and the lifting top surface forming surface forms a secondary stepped bottom surface with a depth of 100-400 mm.
9. The forging seat for forming the low-L-shaped wear-resistant lining plate according to claim 2, wherein the second lifting surface forming surface is in linear transition forming from the crushing surface forming surface to the transition surface forming surface, and the transition surface forming surface is an arc surface or a plane surface.
10. The liner plate forming method of the forging seat for forming the low-L-shaped wear-resistant liner plate is characterized by comprising the following steps of:
a) casting the alloy into a steel ingot by a smelting and refining process, carrying out hot delivery to a forging press, adopting a conventional forging machine to parallel an upper seat and a lower seat, completing upsetting and drawing, and forging and pressing the steel ingot into a square billet;
b) replacing and installing a lower seat with a first groove and an upper seat with an installation surface forming surface, horizontally placing the square billet in the step a) on a crushing surface forming surface for forging, and completing the forming of a first splicing surface forming surface, the crushing surface forming surface, a transition surface forming surface, a second lifting surface forming surface, a lifting top surface forming surface, a first lifting surface forming surface and a second splicing surface forming surface on the lower seat; finishing the molding of the mounting surface under the action of the upper seat; the length of the formed forge piece gradually extends to a terminal point according to the width of the upper base and the lower base of the forging machine and the length of the forging stock;
c) and cutting the formed forging according to the size of the mill, and then welding and finely machining the formed forging into the shape of the casting lining plate.
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| CN202110227207.2A CN113000767A (en) | 2021-03-01 | 2021-03-01 | Forging seat for forming low-L-shaped wear-resistant lining plate and lining plate forming method |
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| CN202110227207.2A CN113000767A (en) | 2021-03-01 | 2021-03-01 | Forging seat for forming low-L-shaped wear-resistant lining plate and lining plate forming method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909809A (en) * | 2021-10-08 | 2022-01-11 | 攀枝花贝氏体耐磨管道有限公司 | Short-process forging and rolling lining plate and preparation method of railway turnout |
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