CN117182479A - Lifting lug node manufacturing method of Q460GJ ultra-thick plate - Google Patents
Lifting lug node manufacturing method of Q460GJ ultra-thick plate Download PDFInfo
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- CN117182479A CN117182479A CN202311306083.2A CN202311306083A CN117182479A CN 117182479 A CN117182479 A CN 117182479A CN 202311306083 A CN202311306083 A CN 202311306083A CN 117182479 A CN117182479 A CN 117182479A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
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- 238000005520 cutting process Methods 0.000 claims abstract description 18
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- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract 1
- 238000012937 correction Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
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- 239000010959 steel Substances 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 2
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- 230000002349 favourable effect Effects 0.000 description 2
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Abstract
The application relates to the technical field of manufacturing of high-strength material structures, and discloses a method for manufacturing lifting lug nodes of a Q460GJ ultra-thick plate, which comprises the following steps: step 1: determining the size allowance of each part and adding and placing; step 2: discharging the body, and pre-cutting the pin shaft hole and the plug welding hole of the lug plate; step 3: cutting a groove according to the requirements of a drawing, paying attention to simultaneous cutting of two sides, and correcting flatness; step 4: the lifting lug plate a and lifting lug plates b on two sides of the lifting lug plate a are respectively welded with the flitch plate in advance, and then boring is integrally carried out; step 5: setting up a qualified jig frame and placing a bottom plate; synchronously welding lifting lug plates b and BH webs symmetrically distributed on two sides of the lifting lug plate a by taking the bottom plate as a reference; step 6: sequentially assembling and welding the transverse stiffening plates and the side panels; step 7: assembling and welding BH upper and lower flanges; step 8: and assembling and welding the cross column at the lower side of the bottom plate by taking the bottom plate as a reference. The application effectively controls welding deformation, ensures structural accuracy and prevents lamellar tearing.
Description
Technical Field
The application relates to the technical field of manufacturing of high-strength material structures, in particular to a method for manufacturing lifting lug nodes of Q460GJ ultra-thick plates.
Background
As an important link for promoting the development of the structure, the development of the building material is indispensible from the birth of a new structure. As the trend of demand for high-rise buildings progresses from mono-functionality to multi-functionality, more complex, structural materials with higher processability and mechanical properties are the targets they are pursuing. Under the background, the Q460GJ serving as high-strength steel has good ductility, high strength and other performances, can further improve the safety and reliability of the structure, can effectively reduce the size of a component and the self weight of the structure, and provides more use space and modeling selection for the building.
The stay cable structure is a novel conversion layer design technology, and can effectively solve the problem of limited building space. The lifting lug connection node is used as an important connection part of the stay cable structure, and the quality safety and reliability of the lifting lug connection node are all crucial to the whole structure. The Q460GJ ultra-thick plate is organically combined with the lifting lug connection node, so that the integral rigidity and stability of the node are ensured, the self weight of the structure is reduced, and the manufacturing cost is saved. Therefore, the Q460GJ is adopted in the stay cable structure of the high-rise building and has obvious superiority.
However, the thickness of the Q460GJ super-thick plate is in the range of 60-300mm, the plate thickness of 100mm is multiplied by the welding difficulty of 60mm, the actual welding quantity is large due to the high strength of the super-thick plate, the welding deformation is large, and meanwhile, the plate thickness is too large, so that the difficulty of post-welding correction is also caused. In addition, the lug structure has a relatively complex structure, and the risk of lamellar tearing easily occurs. Therefore, how to ensure high precision of structure fabrication, control welding deformation, and prevent lamellar tearing becomes a key point of fabrication.
The utility model discloses a special-shaped box-type combination inhaul cable node of super thick plate and a manufacturing method thereof of CN114396121A, its two lug are mutually parallel, adopt full penetration welding between lug and the framework, adopt back chipping welding in groove department, set up K style of calligraphy groove, and inboard groove angle is 40, and outside groove angle is 50, has the angle when two lugs, welds the layer and can't avoid tearing.
Disclosure of Invention
In order to solve the defects, the application aims to provide a manufacturing method of a lifting lug node of a Q460GJ ultra-thick plate, which is used for effectively controlling welding deformation, ensuring structural precision and preventing lamellar tearing.
In order to achieve the above purpose, the application adopts the following technical scheme: a method for manufacturing a lifting lug node of a Q460GJ ultra-thick plate comprises the following steps:
step 1: determining the size allowance of each part and adding and placing;
step 2: the numerical control cutting machine performs body blanking, and pre-cuts the pin shaft holes and plug welding holes of the lug plates;
step 3: cutting a groove according to the requirements of a drawing, paying attention to simultaneous cutting of two sides, and correcting flatness;
step 4: the lifting lug plate a and lifting lug plates b on two sides of the lifting lug plate a are respectively welded with the flitch plate in advance, and then boring is integrally carried out; the outer side edge and the inner side edge of the flitch are welded with the three lifting lug plates by adopting groove welding, and the contact surfaces of the flitch and the three lifting lug plates are fixed by adopting plug welding holes by plug welding;
step 5: setting up a qualified jig frame and placing a bottom plate;
assembling and welding a lifting lug plate a, a lifting lug plate b and a BH web plate by taking a bottom plate as a reference; the lifting lug plates b are symmetrically distributed on two sides of the lifting lug plate a, and BH webs are symmetrically distributed on two sides of the lifting lug plate a; one BH web corresponds to one lifting lug plate b, and the two lifting lug plates are positioned on the same straight line; synchronously welding two symmetrical parts;
step 6: sequentially assembling and welding the transverse stiffening plates and the side panels;
the transverse stiffness plate is arranged between the lifting lug plate a and the lifting lug plate b, between the lifting lug plate a and the BH web, and between the lifting lug plate b and the BH web, and is parallel to the bottom plate; the side panels are arranged between the lifting lug plate a and the lifting lug plate b, between the lifting lug plate a and the BH web, and between the lifting lug plate b and the BH web, and are perpendicular to the bottom plate;
step 7: assembling and welding BH upper and lower flanges;
step 8: and assembling and welding the cross column at the lower side of the bottom plate by taking the bottom plate as a reference.
Through adopting above-mentioned technical scheme, through the symmetrical piece of synchronous welding lug board a both sides: lug board b, BH web, lug board a and lug board b, lug board a and BH web, lug board b and BH web between the lateral stiffening board that is on a parallel with the bottom plate and the side board of perpendicular to bottom plate of welding respectively, the lug node structure precision that the welding comes out is high, and welding deformation is few during the welding, lamellar tearing when being favorable to preventing the welding.
Preferably, in the step 1, the dimensional allowance is added and placed as a lifting lug plate a, a lifting lug plate b, a bottom plate, a BH web plate and a BH lower flange, the allowance is added and placed in the width direction by 3-5 mm, and the allowance is added and placed in the length direction by 3-6 mm by the lifting lug plate a, the lifting lug plate b and the BH web plate.
Through adopting above-mentioned technical scheme, lug board a, lug board b, bottom plate and BH web's plate thickness is 100mm, and the material is Q460GJC, and the welding process is CP penetration welding, adds the surplus at width, length direction respectively, and width, length shrinkage after the repair welding are filled.
Preferably, in step 2, the pre-cutting aperture=actual aperture-20 mm of the pin shaft hole of the lug plate and the plug welding hole, and the boring amount of 20mm is reserved.
By adopting the technical scheme, the boring workload can be reduced and the processing cost can be saved by pre-cutting holes.
Preferably, in the step 4, grooves with angles of 40-45 degrees and penetration depths of 18-20 mm are formed on the peripheral edges of the flitch.
Preferably, in step 4, the lifting lug plate a and the lifting lug plate b are welded with the inner sides of the holes of the flitch respectively.
By adopting the technical scheme, the lifting lug plate and the flitch are prevented from rusting due to different setting-out gaps of the vertical faces, and the quality of the inner wall of the hole is ensured.
By adopting the technical scheme, through the groove with the angle of 40-45 degrees and the penetration depth of 18-20 mm, certain weld joints are formed between the lifting lug plate a and the lifting lug plate b after boring and the inner wall of the pasting plate.
Preferably, in step 5, the grooves between the lifting lug plate a, the lifting lug plate b and the BH web are 30-35 degrees.
By adopting the technical scheme, the welding seam is considered to be full penetration welding, the welding seam is easy to deform after welding, and a steel plate with the thickness of 100mm is difficult to correct, and the groove is set to be 30-35 degrees, so that the welding shrinkage is reduced.
Preferably, in step 5, the assembly positions of the lifting lug plate b and the BH web are deviated to the side of the lifting lug plate a by 2-4 degrees on the basis of the original assembly positions, and the reverse deformation treatment is carried out between the lifting lug plate a and the lifting lug plate b and between the lifting lug plate a and the BH web.
Through adopting above-mentioned technical scheme, lug board b, BH web symmetric distribution are in lug board a both sides, synchronous welding both sides symmetry piece reduces the welding shrinkage deformation. And the back deformation treatment is carried out between the lifting lug plate a and the lifting lug plate b and between the lifting lug plate a and the BH web, so that unilateral angular deformation is prevented during welding, the post-welding correction difficulty is reduced, and the structural precision control is facilitated.
Preferably, in step 6 and step 7, the t-joints are respectively arranged between the lifting lug plate a, the lifting lug plate b, the BH web and the transverse stiffening plate, between the transverse stiffening plate and the side panel, and between the BH upper flange and the BH web, so that the middle BH web is provided with a lamellar tearing resisting groove in the thickness direction; one side of the BH web is provided with a single-side V-shaped clear groove with the angle of 30-35 degrees, and the other side is provided with a single-side V-shaped back-gouging groove with the groove width of not less than t/2+2 and the groove angle of not less than 30 degrees, so that an anti-lamellar tearing groove is formed.
By adopting the technical scheme, the aim of preventing lamellar tearing is achieved by forming the lamellar tearing-resistant groove, so that welding tensile stress generated in the thickness direction of the middle clamping plate by the two side plates in the welding shrinkage process is reduced.
Compared with the prior art, the application has the following beneficial effects:
1. the symmetrical parts on two sides of the lifting lug plate a are synchronously welded: lug board b, BH web, lug board a and lug board b, lug board a and BH web, lug board b and BH web between the lateral stiffening board that is on a parallel with the bottom plate and the side board of perpendicular to bottom plate of welding respectively, the lug node structure precision that the welding comes out is high, and welding deformation is few during the welding, lamellar tearing when being favorable to preventing the welding.
2. Aiming at the risk of lamellar tearing, the application improves the groove form of the T-shaped joint, and opens an anti-lamellar tearing groove in the thickness direction of the BH web, namely, opens a single-side V-shaped clear groove with the width of the groove not smaller than t/2+2 and the angle of the groove not smaller than 30 DEG on one side of the BH web, and opens a single-side V-shaped back gouging groove with the groove angle not smaller than 30 DEG on the other side, thereby reducing the welding tensile stress generated on the thickness direction of the BH web by the two side plates in the welding shrinkage process and avoiding lamellar tearing.
3. According to the application, the lifting lug plates b and BH webs are symmetrically distributed on two sides of the lifting lug plate a, one BH web corresponds to one lifting lug plate b, symmetrical parts on two sides of the lifting lug plate a are synchronously welded, the assembly positions of the lifting lug plates b and BH webs are deviated to 2-4 degrees on the side of the lifting lug plate a on the original basis, reverse deformation treatment is carried out on the space between the lifting lug plate a and the lifting lug plate b and between the lifting lug plate a and the BH webs, welding deformation is controlled through synchronous welding and reverse deformation treatment, the post-welding correction difficulty is reduced, the accuracy control of the whole structure is facilitated, the post-welding correction workload is reduced, the labor cost is saved, and good economic benefits and social benefits are achieved.
4. The application fully considers the characteristics of Q460GJC materials, controls the blanking size and reduces the influence of welding on size deviation. Meanwhile, the requirement of concentricity of pin shaft holes of the lifting lug plate and the flitch is considered, the machining thought of boring the whole body after pre-cutting holes is provided, and in order to ensure the quality of the inner wall of the holes, welding treatment is carried out on the inner sides of the lifting lug plate and the flitch holes, so that rust in gaps between the lifting lug plate and the flitch holes is avoided.
Drawings
Fig. 1 is a schematic structural view of a lifting lug node of a Q460GJ ultra-thick plate according to the application.
Fig. 2 is a schematic top view of a lifting lug node of a Q460GJ ultra-thick plate according to the application.
Fig. 3 is a schematic front view of a lifting lug node of a Q460GJ ultra-thick plate according to the application.
Fig. 4 is a schematic diagram showing the connection of BH web and lifting lug plate b, BH upper flange according to the present application.
Wherein: 1. lifting lug plates a and 2, lifting lug plates b and 3, attaching plates, 4, a bottom plate, 5, BH web plates, 6, transverse stiffening plates, 7, side panels, 8, BH lower flanges, 9, BH upper flanges, 10 and cross columns.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.
A method for manufacturing a lifting lug node of a Q460GJ ultra-thick plate comprises the following steps.
Step 1: as shown in fig. 1, the dimensional margins of the parts are determined to be added and released according to the analysis of the structural nodes so as to prevent the post-welding dimension from being shortened. Considering the characteristics of Q460GJ material, combining processing experience, determining a lifting lug plate a1, a lifting lug plate b2 and a bottom plate 4 which are 100mm thick and made of Q460GJC, and a BH web 5 and a BH lower flange 8 which are 100mm thick and made of Q460GJC, wherein the CP penetration welding is adopted between the lifting lug plate a1, the lifting lug plate b2 and the bottom plate 4, so that the allowance of 3-5 mm is added in the width direction; the lifting lug plate a1, the lifting lug plate b2 and the BH web 5 are welded with each other and are completely melted, so that the allowance of 3-6 mm is added in the length direction.
Step 2: and the numerical control cutting machine performs body blanking and pre-cuts pin holes and plug welding holes of the lifting lug plate a1 and the lifting lug plate b 2. Considering that the pin shaft hole is too large, a pre-cutting hole mode is adopted, the aperture of the pre-cutting hole=the actual aperture-20 mm, and the boring hole pre-amount of 20mm is reserved. In addition, the pre-cutting procedure can reduce boring workload and save processing cost
Step 3: when the groove is cut, the two sides are cut simultaneously according to the requirements of the drawing, so that deformation is reduced, and straight is corrected. In order to avoid secondary cutting of the bevel, the bevel should be selected in advance. The overall structure is in a T-shaped joint mode, and the middle clamping plate is provided with a lamellar tearing resistant groove in the thickness direction. BH web 5 is the intermediate splint. Lamellar tearing groove resistance: one side of the middle clamping plate is provided with a single-side V-shaped clear groove with the angle of 30-35 degrees, and the other side of the middle clamping plate is provided with a single V-shaped clear groove with the groove width not smaller than t/2+2 and the groove angle not smaller than 30 degrees. The addition of the lamellar tearing-resistant groove can reduce the welding tensile stress generated in the thickness direction of the two side plates to the middle clamping plate in the welding shrinkage process.
Step 4: in order to ensure the concentricity requirements of pin shaft holes on the lifting lug plate a1, the lifting lug plate b2 and the flitch 3, the lifting lug plate a1, the lifting lug plate b2 and the flitch 3 are welded in advance, and then boring is integrally performed. The outer side and the inner side edges of the flitch 3 are welded with the lifting lug plate a1 and the lifting lug plate b2 by adopting groove welding, and the contact surfaces of the flitch 3, the lifting lug plate a1 and the lifting lug plate b2 are fixed by adopting 5 plug welding holes. In order to ensure the quality of the inner wall of the boring, grooves with the angles of 40-45 degrees and the penetration of 18-20 mm are formed on the peripheral edges of the flitch 3, and certain weld joints are formed between the lifting lug plate a1 and the lifting lug plate b2 after the boring and the inner wall of the flitch 3. In addition, the lifting lug plate a1 and the lifting lug plate b2 are welded with the inner sides of the holes of the flitch 3 respectively, so that the situation that obvious gaps possibly appear between the lifting lug plate a1, the lifting lug plate b2 and the flitch 3 due to different vertical planes of the inner walls of the lifting lug plate a1 and the lifting lug plate b2 is avoided, rust is generated in the gaps due to incapability of derusting, and the quality of the inner walls of the holes is ensured.
Step 5: setting up qualified jig frames and placing the bottom plate 4. And assembling and welding a lifting lug plate a1, a lifting lug plate b2 and a BH web 5 by taking the bottom plate 4 as a reference. Lifting lug plates b2 are symmetrically distributed on two sides of the lifting lug plate a1, and BH webs 5 are symmetrically distributed on two sides of the lifting lug plate a 1. One BH web 5 corresponds to one shackle plate b2, and both are located on a straight line. 45-degree natural grooves are formed among the lifting lug plate a1, the lifting lug plate b2 and the BH web 5, but welding seams are considered to be full penetration welding, deformation is easy to occur after welding, and a steel plate with the thickness of 100mm is difficult to correct, so that the grooves are 30-35 degrees, and the welding shrinkage is reduced. The assembly positions of the lifting lug plate b2 and the BH web 5 deviate to the side of the lifting lug plate a1 by 2-4 degrees on the basis of the original positions. By adopting the technical scheme, the welding deformation is controlled through various preventive measures, the post-welding correction difficulty is reduced, and the structural precision control is facilitated.
Step 6: as shown in fig. 2, the cross plate 6 and the side plate 7 are assembled and welded in this order. The transverse stiffness plate 6 is arranged between the lifting lug plate a1 and the lifting lug plate b2, between the lifting lug plate a1 and the BH web 5, and between the lifting lug plate b2 and the BH web 5, and is parallel to the bottom plate 4. The side panel 7 is arranged between the lifting lug plate a1 and the lifting lug plate b2, between the lifting lug plate a1 and the BH web 5, and between the lifting lug plate b2 and the BH web 5, and is perpendicular to the bottom plate 4. The T-shaped connectors are arranged among the lifting lug plate a1, the lifting lug plate b2, the BH web 5 and the transverse stiffening plate 6 and among the transverse stiffening plate 6 and the side panels 7, so that lamellar tearing resistant grooves are formed in the thickness direction of the corresponding middle clamping plates, namely, single-side V-shaped clear grooves with the groove width of not less than t/2+2 and the groove angle of not less than 30 DEG are formed in one side of the BH web 5 of the middle clamping plates, and lamellar tearing risks are avoided.
Step 7: as shown in fig. 3, BH upper flanges 9 and BH lower flanges 8 are assembled and welded. The BH top flange 9, BH bottom flange 8 and BH web 5 department all have "T" joint, so BH web 5 all should offer the lamellar tearing groove of resisting in its thickness direction, and unilateral V type clear groove of 30 ~ 35 is offered to middle splint one side, and the opposite side is offered the groove width and is not less than t/2+2 on middle splint, and the groove angle is greater than or equal to 30 single V type back gouging groove of degree, avoids lamellar tearing risk to appear.
Step 8: the lower cross column 10 is assembled and welded with the base plate 4 as a reference. The cross column 10 is arranged on the lower side of the bottom plate 4 and is welded with the bottom plate 4 by full penetration.
The application welds a lifting lug plate a1, a lifting lug plate b2 and a BH web 5 on a bottom plate 4. Symmetrical parts on two sides of the lifting lug plate a 1: and the lifting lug plates b2 and the BH web 5 are synchronously welded. The lifting lug plate a1 and the lifting lug plate b2 are respectively welded with a flitch plate 3. And welding grooves are formed among the lifting lug plate a1, the lifting lug plate b2 and the BH web 5. Lifting lug plates b2 are symmetrically distributed on two sides of the lifting lug plate a1, and BH webs 5 are symmetrically distributed on two sides of the lifting lug plate a 1. One BH web 5 corresponds to one shackle plate b2, and both are located on a straight line. And a transverse stiffening plate 6 and a side panel 7 are welded between the lifting lug plate a1 and the lifting lug plate b2, between the lifting lug plate a1 and the BH web 5 and between the lifting lug plate b2 and the BH web 5, the transverse stiffening plate 6 is parallel to the bottom plate 4, and the side panel 7 is perpendicular to the bottom plate 4. A transverse stiffening plate 6 and side panels 7. As shown in fig. 4, a BH upper flange 9 is welded to one end of the BH web 5, and a BH lower flange 8 is welded to the bottom. The bottom surface of the bottom plate 4 is welded with a cross post 10. Novel structure has ensured welded high accuracy, is applicable to beam structure. The welding deformation is controlled by means of synchronous welding, reverse deformation, lamellar tearing resistance groove opening and the like, so that the post-welding correction difficulty is reduced, and lamellar tearing is effectively prevented.
It will be appreciated by persons skilled in the art that the embodiments of the application described above and shown in the drawings are by way of example only and not limitation, and that the objects of the application have been fully and effectively achieved. The functional and structural principles of the present application have been shown and described in the examples and embodiments of the application may be modified or practiced without departing from the principles described.
Claims (8)
1. The manufacturing method of the lifting lug node of the Q460GJ ultra-thick plate is characterized by comprising the following steps of:
step 1: determining the size allowance of each part and adding and placing;
step 2: the numerical control cutting machine performs body blanking, and pre-cuts the pin shaft holes and plug welding holes of the lug plates;
step 3: cutting a groove according to the requirements of a drawing, paying attention to simultaneous cutting of two sides, and correcting flatness;
step 4: the lifting lug plate a and lifting lug plates b on two sides of the lifting lug plate a are respectively welded with the flitch plate in advance, and then boring is integrally carried out; the edge of the flitch and the three lifting lug plates are welded by adopting groove welding, and the contact surfaces of the flitch and the three lifting lug plates are fixed by adopting plug welding holes by plug welding;
step 5: setting up a qualified jig frame and placing a bottom plate;
assembling and welding a lifting lug plate a, a lifting lug plate b and a BH web plate by taking a bottom plate as a reference; the lifting lug plates b are symmetrically distributed on two sides of the lifting lug plate a, and BH webs are symmetrically distributed on two sides of the lifting lug plate a; one BH web corresponds to one lifting lug plate b, and the two lifting lug plates are positioned on the same straight line; synchronously welding two symmetrical parts;
step 6: sequentially assembling and welding the transverse stiffening plates and the side panels;
the transverse stiffness plate is arranged between the lifting lug plate a and the lifting lug plate b, between the lifting lug plate a and the BH web, and between the lifting lug plate b and the BH web, and is parallel to the bottom plate; the side panels are arranged between the lifting lug plate a and the lifting lug plate b, between the lifting lug plate a and the BH web, and between the lifting lug plate b and the BH web, and are perpendicular to the bottom plate;
step 7: assembling and welding BH upper and lower flanges;
step 8: and assembling and welding the cross column at the lower side of the bottom plate by taking the bottom plate as a reference.
2. The method for manufacturing the lifting lug node of the Q460GJ ultra-thick plate, according to claim 1, is characterized in that: in the step 1, the dimensional allowance is added and placed as an allowance of 3-5 mm in the width direction of the lifting lug plate a, the lifting lug plate b, the bottom plate, the BH web and the BH lower flange, and the allowance of 3-6 mm in the length direction of the lifting lug plate a, the lifting lug plate b and the BH web.
3. The method for manufacturing the lifting lug node of the Q460GJ ultra-thick plate, according to claim 1, is characterized in that: in the step 2, the pre-cutting aperture=actual aperture-20 mm of the pin shaft hole and the plug welding hole of the lug plate, and the boring amount of 20mm is reserved.
4. The method for manufacturing the lifting lug node of the Q460GJ ultra-thick plate, according to claim 1, is characterized in that: in the step 4, grooves with angles of 40-45 degrees and penetration depths of 18-20 mm are formed on the peripheral edges of the flitch.
5. The method for manufacturing the lifting lug node of the Q460GJ ultra-thick plate, according to claim 1, is characterized in that: in the step 4, the lifting lug plate a and the lifting lug plate b are respectively welded with the inner sides of the holes of the flitch.
6. The method for manufacturing the lifting lug node of the Q460GJ ultra-thick plate, according to claim 1, is characterized in that: in the step 5, the groove between the lifting lug plate a and the lifting lug plate b and between the lifting lug plate b and the BH web plate is 30-35 degrees.
7. The method for manufacturing the lifting lug node of the Q460GJ ultra-thick plate, according to claim 1, is characterized in that: in the step 5, the assembly positions of the lifting lug plate b and the BH web are deviated to the side of the lifting lug plate a by 2-4 degrees on the original basis, and the reverse deformation treatment is carried out between the lifting lug plate a and the lifting lug plate b and between the lifting lug plate a and the BH web.
8. The method for manufacturing the lifting lug node of the Q460GJ ultra-thick plate, according to claim 1, is characterized in that: in the step 6 and the step 7, a single-side V-shaped clear groove with the groove width not smaller than t/2+2 and the groove angle not smaller than 30 degrees is formed on one side of the BH web plate, and a lamellar tearing resistant groove is formed on the other side of the BH web plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311306083.2A CN117182479A (en) | 2023-10-10 | 2023-10-10 | Lifting lug node manufacturing method of Q460GJ ultra-thick plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311306083.2A CN117182479A (en) | 2023-10-10 | 2023-10-10 | Lifting lug node manufacturing method of Q460GJ ultra-thick plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117182479A true CN117182479A (en) | 2023-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311306083.2A Pending CN117182479A (en) | 2023-10-10 | 2023-10-10 | Lifting lug node manufacturing method of Q460GJ ultra-thick plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117182479A (en) |
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2023
- 2023-10-10 CN CN202311306083.2A patent/CN117182479A/en active Pending
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