CN117548913A - Horizontal flange leveling method and horizontal flange leveling device - Google Patents
Horizontal flange leveling method and horizontal flange leveling device Download PDFInfo
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- CN117548913A CN117548913A CN202311629371.1A CN202311629371A CN117548913A CN 117548913 A CN117548913 A CN 117548913A CN 202311629371 A CN202311629371 A CN 202311629371A CN 117548913 A CN117548913 A CN 117548913A
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- 238000000034 method Methods 0.000 title claims abstract description 127
- 238000003466 welding Methods 0.000 claims abstract description 44
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 7
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Engineering & Computer Science (AREA)
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- Presses And Accessory Devices Thereof (AREA)
Abstract
The application provides a horizontal flange leveling method and a horizontal flange leveling device, which belong to the technical field of welded shells, and the horizontal flange leveling method comprises the following steps: firstly, fixing a horizontal flange and a process pulling plate in a single-side welding mode, placing an assembly on a platform, supporting the assembly by the platform, applying pressure to the process pulling plate above the assembly at the moment, enabling the horizontal flange to deform after being pressed, profiling the horizontal flange, keeping the pressure for a first preset time period, enabling the horizontal flange to deform better, enabling the grain structure inside the horizontal flange to be adjusted and thinned, facilitating the elimination of residual stress, and improving the mechanical properties such as strength, hardness and the like of the horizontal flange; whether one side of the horizontal flange close to the platform is approximately parallel to the platform is observed, so that the leveling adjustment effect is judged, the problem of lifting and tilting of the horizontal flange is solved by pressurizing the assembly, the levelness of the horizontal flange is improved, the production quality of the horizontal flange is improved, and the production progress is accelerated.
Description
Technical Field
The application belongs to the technical field of welded shells, and particularly relates to a horizontal flange leveling method and a horizontal flange leveling device.
Background
The welding shell of the MCL type centrifugal compressor is manufactured by adopting the requisite processes of forming, assembling and welding, stress relief and the like of a plate, a forge piece or a casting, wherein the horizontal flange of the MCL type welding shell is formed by assembling and welding a flange, a thrust sealing body and a supporting sealing body. The horizontal flange and the sealing body adopt a double-side asymmetric welding groove mode, the connecting welding seams at the two sides are in asymmetric welding operation, the welding filling quantity is unequal, welding residual stress in different states is easy to exist after welding, the problem of tilting deformation of the horizontal flange at one corner or opposite corners after welding and stress relief is caused, the angle deformation is large, the requirement of the split machining allowance of the horizontal flange of the MCL welding shell is far exceeded, and the manufacturing progress and the quality requirement of the welding shell are severely restricted.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art or related art.
To this end, a first aspect of the invention provides a horizontal flange leveling method.
A second aspect of the invention provides a horizontal flange leveling device.
In view of this, according to a first aspect of an embodiment of the present application, a horizontal flange leveling method is provided, including: vertically welding the process pulling plate on the first side of the horizontal flange to form an assembly of the process pulling plate and the horizontal flange; placing the assembly on a platform, applying pressure to the process pulling plate to enable the horizontal flange to generate deformation, maintaining the pressure and maintaining the first preset time period; until the second side of the horizontal flange is observed to be parallel to the platform.
In one possible embodiment, vertically welding a process plate to a first side of a horizontal flange to form a process plate and horizontal flange assembly includes: and placing the process pulling plate on the first side of the horizontal flange along the first diagonal line of the horizontal flange, and welding one end of the process pulling plate with one corner of the horizontal flange.
In one possible embodiment, the length of the process pulling plate is the maximum length of the first diagonal of the horizontal flange.
In one possible implementation mode, the welding angle of the process pulling plate and the horizontal flange is 10mm, the length of welding lines on two sides of the horizontal flange and the process pulling plate is more than or equal to 150mm, and the perpendicularity of the process pulling plate and the first side of the horizontal flange is less than or equal to 2mm.
In one possible embodiment, the process plate is welded vertically to the first side of the horizontal flange, and prior to forming the process plate and horizontal flange assembly, the process plate comprises: and placing the horizontal flange on a platform, detecting the horizontal flange, recording the tilting deformation quantity a of the horizontal flange, marking the deformation position of the horizontal flange, and taking the tilting deformation quantity a and the deformation position as leveling basis of the horizontal flange.
In one possible embodiment, applying pressure to the process plate to deform the horizontal flange, maintaining the pressure and maintaining the pressure for a first predetermined period of time includes: applying a first preset pressure to the process pulling plate to enable the deformation position of the horizontal flange to generate a deformation amount of 1.5a, and maintaining the deformation amount for 3-5 min under the first pressure; and applying a second preset pressure to the process pulling plate to enable the deformation position of the horizontal flange to generate 2a deformation, and maintaining the second pressure for 3-5 min.
In one possible embodiment, placing the assembly on the platform comprises: and placing two cushion blocks on the platform, and ensuring that two angles on a second diagonal line of the horizontal flange fall above the two cushion blocks respectively.
In one possible embodiment, until the second side of the horizontal flange is observed to be parallel to the platform comprises: until the four corners of the horizontal flange are equal to the heights of the cushion blocks.
In one possible embodiment, until the second side of the horizontal flange is observed to be parallel to the platform further comprises: and checking gaps between the horizontal flange and the platform along the circumferential direction of the horizontal flange by using the feelers until every position of the horizontal flange in the circumferential direction can not be plugged with the feelers with the specification of 2mm.
According to a second aspect of embodiments of the present application, a horizontal flange leveling device is provided, which is applied to the horizontal flange leveling method according to any one of the above technical solutions, and includes: the process pulling plate, the platform and the cushion block; the process pulling plate is arranged along a first diagonal line of the horizontal flange, and is welded with the first side of the horizontal flange so as to be fixed on the horizontal flange; the platform is used for supporting the horizontal flange; the cushion blocks are placed on the platform, and the two cushion blocks are arranged along the second diagonal line of the horizontal flange, so that after the horizontal flange is placed, two corners on the second diagonal line of the horizontal flange can respectively fall on the two cushion blocks.
Compared with the prior art, the horizontal flange leveling method and the horizontal flange leveling device have the beneficial effects that:
the horizontal flange leveling method is suitable for leveling the horizontal flange of the welding machine shell, and the horizontal flange and the process pulling plate are fixed in a single-side welding mode, so that the process pulling plate and the horizontal flange form a stable T-shaped structure assembly; the assembly is placed on a platform, the assembly is supported by the platform, at the moment, pressure is applied to the process pulling plate above the assembly, the process pulling plate is used for transmitting the pressure, so that the horizontal flange is deformed after being pressed, the horizontal flange is pressed, the pressure is maintained for a first preset time period, the horizontal flange can be deformed better, the grain structure in the horizontal flange is adjusted and thinned, the residual stress is eliminated, and the mechanical properties such as strength, hardness and the like of the horizontal flange are improved; whether one side of the horizontal flange close to the platform is approximately parallel to the platform is observed, so that the leveling adjustment effect is judged, the problem of lifting and tilting of the horizontal flange is solved by pressurizing the assembly, the levelness of the horizontal flange is improved, the production quality of the horizontal flange is improved, the production progress is accelerated, and the production efficiency is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic step flow diagram of a horizontal flange leveling method according to one embodiment provided herein;
FIG. 2 is a schematic block diagram of a horizontal flange leveling device according to one embodiment provided herein;
wherein, the correspondence between the reference numerals and the component names in fig. 1 to 2 is:
10. a platform; 12. a horizontal flange; 14. a process pulling plate; 16. an oil press; 18. and (5) cushion blocks.
Detailed Description
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
The preferred embodiments of the present application will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present application only and are not intended to limit the present application.
As shown in fig. 1, according to a first aspect of an embodiment of the present application, a method for leveling a horizontal flange 12 is provided, including:
step 101: the tooling plate 14 is welded vertically to a first side of the horizontal flange 12 to form an assembly of the tooling plate 14 and the horizontal flange 12. It will be appreciated that the tooling plate 14 is welded to the opposite corners of the raised horizontal flange 12.
Step 102: the assembly is placed on the platform 10 and pressure is applied to the tooling plate 14 to deform the horizontal flange 12, maintain the pressure and maintain the first predetermined length of time. It will be appreciated that the assembly may be lifted onto the platform 10 by a crown block or a lifting device, when pressure is applied to the process pulling plate 14, the hydraulic press 16 is used to pressurize, the hydraulic press 16 is operated to drop the mold of the hydraulic press 16 to the top end of the process pulling plate 14, and after the first preset period of pressure maintaining, the hydraulic press 16 is gradually released until the mold of the hydraulic press 16 is separated from the process pulling plate 14.
Step 103: until the second side of the horizontal flange 12 is observed to be parallel to the platform 10. It will be appreciated that since there may be machining allowance for the horizontal flange 12, it is only necessary to observe that the second side of the horizontal flange 12 is approximately parallel to the platform 10 to stop the leveling process.
According to the leveling method for the horizontal flange 12, the horizontal flange 12 and the process pulling plate 14 are fixed in a single-side welding mode, so that the process pulling plate 14 and the horizontal flange 12 form a stable T-shaped structure assembly; the assembly is placed on the platform 10, the assembly is supported by the platform 10, at the moment, the process pulling plate 14 is applied with pressure above the assembly, the process pulling plate 14 is used for transmitting the pressure, the horizontal flange 12 is deformed after being pressed, the horizontal flange 12 is pressed, the pressure is maintained for a first preset time period, the horizontal flange 12 can be better deformed, the grain structure inside the horizontal flange 12 is adjusted and thinned, the residual stress is eliminated, and the mechanical properties such as strength, hardness and the like of the horizontal flange 12 are improved; whether one side of the horizontal flange 12 close to the platform 10 is approximately parallel to the platform 10 is observed, so that the leveling adjustment effect is judged, the problem that the horizontal flange 12 warps is solved by pressurizing the assembly, the levelness of the horizontal flange 12 is improved, the production quality of the horizontal flange 12 is improved, the production progress is accelerated, and the production efficiency is improved.
In one possible embodiment, vertically welding the tooling plate 14 to the first side of the horizontal flange 12 to form the tooling plate 14 and horizontal flange 12 assembly includes: the tooling plate 14 is placed on a first side of the horizontal flange 12 along a first diagonal of the horizontal flange 12 and one end of the tooling plate 14 is welded to a corner of the horizontal flange 12.
In this technical solution, there is further provided a step of vertically welding the process pulling plate 14 on the first side of the horizontal flange 12, forming an assembly of the process pulling plate 14 and the horizontal flange 12, in which the more distant two positions on the horizontal flange 12 are more distinct in height difference, so that the process pulling plate 14 is disposed along a diagonal line of the horizontal flange 12, so that the process pulling plate 14 is disposed along a longest straight line on the horizontal flange 12, so that the process pulling plate 14 can directly press the position of severe warpage, so that the pressure can effectively act on the horizontal flange 12, and be transmitted from the diagonal line to both sides of the diagonal line; one end of the process pulling plate 14 can be welded with one corner of the horizontal flange 12, the process pulling plate 14 is stably fixed on the horizontal flange 12, meanwhile, the horizontal flange 12 is guaranteed to have enough deformation space, the deformation capacity of the horizontal flange 12 is improved, the leveling time of the horizontal flange 12 is shortened, the leveling effect of the horizontal flange 12 is improved, the leveling efficiency of the horizontal flange 12 is improved, and the subsequent process is smoothly carried out.
In one possible embodiment, the length of the tooling plate 14 is the maximum length of the first diagonal of the horizontal flange 12.
In this technical solution, a dimension selection criterion of the process pulling plate 14 is further provided, and the length of the process pulling plate 14 can be selected in combination with the overall contour dimension of the horizontal flange 12, so that the maximum contact length between the process pulling plate 14 and the horizontal flange 12 is ensured by making the process pulling plate 14 be the maximum length of the first diagonal line of the horizontal flange 12, so that the pressure transmitted by the process pulling plate 14 can directly act on the two diagonal lines of the horizontal flange 12.
Wherein the horizontal flange is a rectangular frame body, the axial length A and the radial width B of the horizontal flange are measured, and the relationship of trigonometric functions is adoptedThe proper length of the technical pulling plate can be obtained.
In one possible embodiment, the weld angle between the process pulling plate 14 and the horizontal flange 12 is 10mm, the weld length between the horizontal flange 12 and both sides of the process pulling plate 14 is equal to or greater than 150mm, and the perpendicularity between the process pulling plate 14 and the first side of the horizontal flange 12 is equal to or less than 2mm.
In the technical scheme, the welding strength of the process pulling plate 14 and the horizontal flange 12 is ensured by welding the two sides of the process pulling plate 14 and enabling the welding seams of the two sides to be not smaller than 150 mm; the welding angle between the process pulling plate 14 and the horizontal flange 12 is 10mm, so that the strength and toughness of a welding joint between the process pulling plate 14 and the horizontal flange 12 are ensured, and welding cracking is prevented; after welding, the perpendicularity of the side, in contact with the horizontal flange 12, of the process pulling plate 14 is guaranteed, so that when the horizontal flange 12 is placed on the platform 10, the pressure transmitted by the process pulling plate 14 can vertically act on the welding side of the horizontal flange 12, and the effectiveness of pressure leveling is guaranteed.
In one possible embodiment, the vertical welding of the process plate 14 to the first side of the horizontal flange 12, prior to forming the process plate 14 and horizontal flange 12 assembly, comprises: the horizontal flange 12 is placed on the platform 10, the horizontal flange 12 is detected, the tilting deformation amount a of the horizontal flange 12 is recorded, the deformation position of the horizontal flange 12 is marked, and the tilting deformation amount a and the deformation position are used as leveling basis of the horizontal flange 12.
In this technical solution, there is further provided a step of vertically welding the process pulling plate 14 on the first side of the horizontal flange 12, before forming the assembly of the process pulling plate 14 and the horizontal flange 12, by marking the deformation position of the horizontal flange 12 in advance and measuring the tilting deformation amount, so as to observe the deformation amount generated at the marked deformation position of the horizontal flange 12 during pressing, and by comparing the deformation amount with the tilting deformation amount, the pressing force is adjusted, so that the pressing force is moderate, the effectiveness of pressure leveling is improved, and meanwhile, the phenomenon that the pit appears on the surface of the horizontal flange 12 due to the pressing of the process pulling plate 14 caused by the excessive pressing is prevented, so that the original structure of the horizontal flange 12 is not damaged, and the quality of the horizontal flange 12 after leveling is ensured.
Wherein, the specification of the process cushion block 18 is 200×200mm, and the thickness of the cushion block 18 is generally 1.5-2 times of the tilting deformation amount a, namely, the thickness of the cushion block 18 is 1.5-2 a mm.
In one possible embodiment, applying pressure to the tooling plate 14 to deform the horizontal flange 12, maintaining the pressure and for a first predetermined period of time includes: applying a first preset pressure to the process pulling plate 14 to enable the deformation position of the horizontal flange 12 to generate a deformation of 1.5a, and maintaining the deformation position for 3-5 min under the first pressure; and applying a second preset pressure to the process pulling plate 14 to enable the deformation position of the horizontal flange 12 to generate the deformation amount of 2a, and maintaining the second pressure for 3-5 min.
In this technical solution, a step of applying pressure to the process pulling plate 14 to generate deformation of the horizontal flange 12, maintaining the pressure and maintaining the first preset time is further provided, the process pulling plate 14 can be pressurized for multiple times, the deformation position marked on the horizontal flange 12 is larger than the deformation of the tilting deformation a, then the crystal grains of the horizontal flange 12 are fully deformed by pressure maintaining, stress is generated inside the horizontal flange 12, and finally the shape and structure of the horizontal flange 12 are changed, so as to level the horizontal flange 12.
The pressure test is needed before the process pulling plate 14 is pressed, and the deformation condition of the deformation position of the mark is observed. The hydraulic press 16 is operated to zero the oil pressure gauge, then the oil pressure button is started, the oil pressure is gradually increased in sequence to test the pressure, the pressure is respectively 10 MPa, 20 MPa, 30 MPa and 40MPa in the process of pressure test, and the deformation condition of the deformation position marked on the horizontal flange 12 is observed.
In one possible embodiment, placing the assembly on the platform 10 comprises: two pads 18 are placed on the platform 10 to ensure that the two corners on the second diagonal of the horizontal flange 12 fall over the two pads 18, respectively.
In this technical solution, there is further provided a step of placing the assembly on the platform 10, in which two corners of the horizontal flange 12, which are not in direct contact with the process pulling plate 14, can be raised by using the cushion blocks 18, so that the two corners of the horizontal flange 12, which are directly pressed, are far away from the supporting surface of the platform 10, so that the two corners, which are directly pressed, have a space for negative deformation downward, the negative deformation is offset with the positive deformation upward of the horizontal flange 12, the effect of single leveling is improved, the number of times of leveling is reduced, and the leveling efficiency of the horizontal flange 12 is improved.
Wherein, the material of the process cushion block 18 is Q345R, the specification is 200×200mm, the thickness is 5mm, 10mm, 20mm, etc., and the thickness of the cushion block 18 can be selected according to the tilting degree of the horizontal flange 12.
In one possible embodiment, until it is observed that the second side of the horizontal flange 12 is parallel to the platform 10 comprises: until the four corners of the horizontal flange 12 are observed to be level with the spacer 18.
In this technical solution, a step is further provided until the second side of the horizontal flange 12 is observed to be parallel to the platform 10, and since the horizontal flange 12 is placed on the spacer 18, the levelness of the horizontal flange 12 can be primarily determined by determining that the top surface of the spacer 18 is approximately equal to the bottom surfaces of the four corners of the horizontal flange 12, so as to determine whether the horizontal flange 12 needs to be leveled continuously.
In one possible embodiment, until the second side of the horizontal flange 12 is observed to be parallel to the platform 10 further comprises: the clearance between the horizontal flange 12 and the platform 10 was checked with a feeler along the circumferential direction of the horizontal flange 12 until no feeler of a gauge of 2mm could be plugged at any position in the circumferential direction of the horizontal flange 12.
In this technical solution, a step is further provided until the second side of the horizontal flange 12 is observed to be parallel to the platform 10, and a clearance between each position of the horizontal flange 12 in the circumferential direction and the platform 10 can be detected by using a feeler gauge, so that the levelness of the horizontal flange 12 can be accurately checked, and when the clearance between each position of the horizontal flange 12 and the platform 10 is less than 2mm, the leveling effect of the horizontal flange 12 meets the process use requirement.
As shown in fig. 2, according to a second aspect of the present application, a leveling device for a horizontal flange 12 is provided, which is applied to a leveling method for a horizontal flange 12 according to any one of the above technical solutions, and includes: a tooling plate 14, a platform 10 and a spacer 18; the process pulling plate 14 is arranged along a first diagonal line of the horizontal flange 12, and the process pulling plate 14 is welded with the first side of the horizontal flange 12 so as to fix the process pulling plate 14 on the horizontal flange 12; the platform 10 is used for supporting a horizontal flange 12; the spacers 18 are placed on the platform 10, and the two spacers 18 are arranged along the second diagonal of the horizontal flange 12, so that after the horizontal flange 12 is placed, two corners on the second diagonal of the horizontal flange 12 can fall on the two spacers 18, respectively.
The horizontal flange 12 leveling device provided in the embodiment of the application is applied to the horizontal flange 12 leveling method according to any of the above technical schemes, so that the horizontal flange 12 leveling device has all the beneficial effects of the horizontal flange 12 leveling method according to the above technical scheme.
Example 1
The leveling method for the horizontal flange 12 provided by the embodiment of the application comprises the following steps:
step one: placing the horizontal flange 12 on the platform 10, detecting the horizontal flange 12, recording the tilting deformation a of the horizontal flange 12, marking the deformation position of the horizontal flange 12, and taking the tilting deformation a and the deformation position as leveling basis of the horizontal flange 12;
step two: placing a process pulling plate 14 with the length equal to the maximum length of the first diagonal line of the horizontal flange 12 of the process pulling plate 14 on the first side of the horizontal flange 12 along the first diagonal line of the horizontal flange 12, setting a welding angle between one end of the process pulling plate 14 and one corner of the horizontal flange 12 as 10mm, welding two sides of the process pulling plate 14 with the horizontal flange 12 with the welding length being equal to or greater than 150mm, and welding the two sides to ensure that the perpendicularity between the process pulling plate 14 and the first side of the horizontal flange 12 is less than or equal to 2mm to form an assembly of the process pulling plate 14 and the horizontal flange 12;
step three: placing two cushion blocks 18 on the platform 10, ensuring that two corners on a second diagonal of the horizontal flange 12 fall above the two cushion blocks 18 respectively, applying a first preset pressure to the process pulling plate 14 to enable the deformation position of the horizontal flange 12 to generate a deformation amount of 1.5a, and maintaining the deformation amount for 3-5 min under the first pressure; applying a second preset pressure to the process pulling plate 14 to enable the deformation of the horizontal flange 12 to generate 2a deformation, and maintaining the second pressure for 3-5 min;
step four: until the second side of the horizontal flange 12 was observed to be parallel to the platform 10, the gap between the horizontal flange 12 and the platform 10 was checked with a feeler along the circumferential direction of the horizontal flange 12 until no feeler of a gauge of 2mm could be plugged at each position in the circumferential direction of the horizontal flange 12.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiment of the present invention is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The foregoing is merely a preferred embodiment of the present application and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principles of the present application, and these modifications and variations should also be regarded as the scope of the present application.
Claims (10)
1. A horizontal flange leveling method, characterized in that the horizontal flange leveling method comprises:
vertically welding a process pulling plate on a first side of a horizontal flange to form an assembly of the process pulling plate and the horizontal flange;
placing the assembly on a platform, applying pressure to the process pulling plate to enable the horizontal flange to generate deformation, maintaining the pressure and maintaining the pressure for a first preset time period;
until the second side of the horizontal flange is observed to be parallel to the platform.
2. The method of leveling a horizontal flange according to claim 1, wherein the vertically welding a process plate to a first side of the horizontal flange to form an assembly of the process plate and the horizontal flange comprises:
and placing the process pulling plate on the first side of the horizontal flange along the first diagonal line of the horizontal flange, and welding one end of the process pulling plate with one corner of the horizontal flange.
3. A method of leveling a horizontal flange as set forth in claim 2 wherein:
the length of the process pulling plate is the maximum length of the first diagonal line of the horizontal flange.
4. A method of leveling a horizontal flange as set forth in claim 2 wherein:
the welding angle between the process pulling plate and the horizontal flange is 10mm, the welding seam length between the horizontal flange and the two sides of the process pulling plate is more than or equal to 150mm, and the perpendicularity between the process pulling plate and the first side of the horizontal flange is less than or equal to 2mm.
5. The method of leveling a horizontal flange according to claim 1, wherein the vertically welding the process plate to the first side of the horizontal flange prior to forming the process plate and horizontal flange assembly comprises:
and placing the horizontal flange on a platform, detecting the horizontal flange, recording the tilting deformation quantity a of the horizontal flange, marking the deformation position of the horizontal flange, and taking the tilting deformation quantity a and the deformation position as leveling basis of the horizontal flange.
6. The method of leveling a horizontal flange according to claim 5, wherein said applying pressure to said tooling plate to deform said horizontal flange, maintaining the pressure and for a first predetermined period of time comprises:
applying a first preset pressure to the process pulling plate to enable the deformation position of the horizontal flange to generate a deformation of 1.5a, and maintaining the deformation position for 3-5 min under the first pressure;
and applying a second preset pressure to the process pulling plate to enable the deformation position of the horizontal flange to generate a deformation amount of 2a, and maintaining the second pressure for 3-5 min.
7. The method of leveling a horizontal flange of claim 1, wherein said placing said assembly on a platform comprises:
and placing two cushion blocks on the platform, and ensuring that two angles on a second diagonal line of the horizontal flange fall above the two cushion blocks.
8. The method of claim 7, wherein said observing until said second side of said horizontal flange is parallel to said platform comprises:
until the four corners of the horizontal flange are observed to be equal to the heights of the cushion blocks.
9. A method of leveling a horizontal flange as set forth in claim 1 wherein said until a second side of said horizontal flange is observed parallel to the platform further comprises:
and checking a gap between the horizontal flange and the platform along the circumferential direction of the horizontal flange by using a clearance gauge until each position of the horizontal flange in the circumferential direction cannot be plugged with the clearance gauge with the specification of 2mm.
10. A horizontal flange leveling apparatus for use in a horizontal flange leveling method according to any one of claims 1 to 9, comprising:
the process pulling plate is arranged along a first diagonal line of the horizontal flange and is welded with the first side of the horizontal flange so as to be fixed on the horizontal flange;
the platform is used for supporting the horizontal flange;
the cushion blocks are placed on the platform, and the two cushion blocks are arranged along the second diagonal line of the horizontal flange, so that after the horizontal flange is placed, two corners on the second diagonal line of the horizontal flange can respectively fall on the two cushion blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311629371.1A CN117548913A (en) | 2023-11-30 | 2023-11-30 | Horizontal flange leveling method and horizontal flange leveling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311629371.1A CN117548913A (en) | 2023-11-30 | 2023-11-30 | Horizontal flange leveling method and horizontal flange leveling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117548913A true CN117548913A (en) | 2024-02-13 |
Family
ID=89814579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311629371.1A Pending CN117548913A (en) | 2023-11-30 | 2023-11-30 | Horizontal flange leveling method and horizontal flange leveling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117548913A (en) |
-
2023
- 2023-11-30 CN CN202311629371.1A patent/CN117548913A/en active Pending
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