CN104476142B - Slipway beam anti-deformation manufacture craft - Google Patents
Slipway beam anti-deformation manufacture craft Download PDFInfo
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- CN104476142B CN104476142B CN201410797032.9A CN201410797032A CN104476142B CN 104476142 B CN104476142 B CN 104476142B CN 201410797032 A CN201410797032 A CN 201410797032A CN 104476142 B CN104476142 B CN 104476142B
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- Prior art keywords
- profile steel
- steel
- welding
- slipway beam
- deformation
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
Abstract
The invention discloses slipway beam anti-deformation manufacture craft, H profile steel is cut into symmetrical T-steel, then by two sections of back-to-back welding of T-steel.Slipway beam anti-deformation making step is as follows：Satisfactory H profile steel is selected, the surface to H profile steel is processed；Asymmetrical cutting is carried out in the center of H profile steel, two sections of symmetrical T-steels are cut into；Two sections of T-steels are placed back to back, are fixedly connected with code plate, and firm supporting；By the T-steel preheating after firm supporting, and it is symmetrically welded.This slipway beam anti-deformation manufacture craft can prevent the deformation of the bottom and two-arm of T-steel in welding, be suitable to be widely used in the qualified slipway beam of batch production making.
Description
Technical field
The invention belongs to steel member anti-deformation manufacture craft, particularly a kind of slipway beam anti-deformation manufacture craft.
Background technology
Slipway beam is the main force structure of component, therefore higher to the welding requirements of slipway beam, and slipway beam is once produce
Welding deformation, can produce large effect, it is necessary to which the welding to slipway beam is rigid in checking up, from welding to the stress of slipway beam
The aspects such as technique, welding sequence and pre- anti-welding deformation strictly control to ensure welding quality.
Directly it is welded using T-steel more than conventional slipway beam, the bottom of T-steel and two-arm easily deform in welding,
Influence the stressing conditions of slipway beam.
The content of the invention
In order to solve the deficiencies in the prior art, the present invention proposes slipway beam anti-deformation manufacture craft.This manufacture craft, will
H profile steel is cut into T-steel, then by two sections of back-to-back welding of T-steel, welding deformation is prevented to greatest extent.
The present invention is adopted the following technical scheme that：
Slipway beam anti-deformation manufacture craft, symmetrical T-steel is cut into by H profile steel, then by two sections of T-steels back to backing run
Connect, slipway beam anti-deformation making step is as follows：
(1) satisfactory H profile steel is selected, the surface to H profile steel is processed；
(2) asymmetrical cutting is carried out in the center of H profile steel, cuts into two sections of symmetrical T-steels；
(3) two sections of T-steels are placed back to back, are fixedly connected with code plate, and firm supporting；
(4) T-steel after firm supporting is preheated, and is symmetrically welded.
Satisfactory H profile steel is selected in the step (1), using following discriminating step：
A, H profile steel is detected using non-damaging manner, judge H profile steel with the presence or absence of interlayer defect or crackle；
If b, H profile steel have crackle, and crack depth and length no more than 50mm, repair by welding is carried out；
If c, H profile steel have crackle, and crack depth is more than 50mm or crack length adds up to exceed H profile steel width
20%, the H profile steel is abandoned, from other H profile steels, repeat step a；
If d, H profile steel have interlayer defect, interlayer defect depth is no more than 6mm, is removed using mechanical means；
If there is interlayer defect in e, H profile steel, interlayer defect depth between 6mm-25mm, using mechanical means remove after
Welding is filled up；
If f, H profile steel have interlayer defect, interlayer defect depth is no more than 25mm or the aggregation interlayer defect gross area surpasses
The 4% of the H profile steel gross area is crossed, from other H profile steels, repeat step a.
Surface in the step (1) to H profile steel is processed, including remove the water on H profile steel surface, oxide skin, rust and
Greasy dirt.
Shallow in depth asymmetric groove over the web center left and right sides of H profile steel in the step (2), by H profile steel
Cut into two sections of symmetrical T-steels.
Further, the asymmetric groove welding, first welds deep groove side, then welds shallow groove side, completes deep afterwards
Groove side weld, finally completes shallow groove side weld.
It is provided with groove described in the step (3) in the middle of code plate, two sections of T-steels are placed back to back rear clamping in the recessed of code plate
In groove.
The T-steel after firm supporting is preheated using electrically heated method in the step (4), the heating zone of preheating
In weld groove both sides, the heating zone of preheating is more than 1.5 times of weld steel plate thickness.
It is symmetrically welded in the step (4) using wandering sequence or interval welding.
Slipway beam anti-deformation manufacture craft of the present invention, also including the detection and correction after slipway beam welding, detects balanced welding
The T-steel for connecing, the exceeded T-steel of welding deformation is corrected or local heating correction using mechanical means.
Further, the detection also detection including face of weld after the slipway beam welding, for weld porosity, folder
The excessive defect of slag, overlap, reinforcement is removed from grinder buffing, spade chisel, the mode of drilling and milling；To welding undersize, undercut,
The unfilled defect of arc crater carries out repair welding.
Using as above technical scheme obtain Advantageous Effects be：
Slipway beam anti-deformation manufacture craft, symmetrical T-steel is cut into by H profile steel, then by two sections of T-steels back to backing run
Connect.Slipway beam anti-deformation making step is as follows：Satisfactory H profile steel is selected, the surface to H profile steel is processed；In H profile steel
Center carry out asymmetrical cutting, cut into two sections of symmetrical T-steels；Two sections of T-steels are placed back to back, are fixed with code plate
Connection, and firm supporting；By the T-steel preheating after firm supporting, and it is symmetrically welded.This slipway beam anti-deformation manufacture craft can prevent
The only deformation of the bottom of T-steel and two-arm in welding, is suitable to be widely used in the qualified slipway beam of batch production making.
Brief description of the drawings
Fig. 1 is fixedly connected schematic diagram for T-steel using code plate.
Fig. 2 is asymmetric groove schematic diagram.
Fig. 3 is asymmetric groove welding sequence schematic diagram.
Specific embodiment
It is described further with reference to 1 to 3 pair of specific embodiment of the invention of accompanying drawing：
Slipway beam anti-deformation manufacture craft, symmetrical T-steel is cut into by H profile steel, then by two sections of T-steels back to backing run
Connect, slipway beam anti-deformation making step is as follows：
(1) satisfactory H profile steel is selected, the surface to H profile steel is processed；
(2) asymmetrical cutting is carried out in the center of H profile steel, cuts into two sections of symmetrical T-steels；
(3) two sections of T-steels are placed back to back, are fixedly connected with code plate, and firm supporting；
(4) T-steel after firm supporting is preheated, and is symmetrically welded.
Satisfactory H profile steel is selected in step (1), using following discriminating step：
A, H profile steel is detected using non-damaging manner, judge H profile steel with the presence or absence of interlayer defect or crackle；
If b, H profile steel have crackle, and crack depth and length no more than 50mm, repair by welding is carried out；
If c, H profile steel have crackle, and crack depth is more than 50mm or crack length adds up to exceed H profile steel width
20%, the H profile steel is abandoned, from other H profile steels, repeat step a；
If d, H profile steel have interlayer defect, interlayer defect depth is no more than 6mm, is removed using mechanical means；
If there is interlayer defect in e, H profile steel, interlayer defect depth between 6mm-25mm, using mechanical means remove after
Welding is filled up；
If f, H profile steel have interlayer defect, interlayer defect depth is no more than 25mm or the aggregation interlayer defect gross area surpasses
The 4% of the H profile steel gross area is crossed, from other H profile steels, repeat step a.
Surface in the step (1) to H profile steel is processed, including remove the water on H profile steel surface, oxide skin, rust and
Greasy dirt.Additionally, welding rod, welding wire, tip will be dried treatment.
In the web center left and right sides of H profile steel using flame cutting machine or the method for machining in the step (2)
Over it is deep in shallow asymmetric groove, H profile steel is cut into two sections of symmetrical T-steels.
Further, the asymmetric groove welding, first welds deep groove side, then welds shallow groove side, completes deep afterwards
Groove side weld, finally completes shallow groove side weld, as shown in figure 3, if super-thick steel plate, the circulation time that increase is symmetrically welded
Number, the welding sequence of 1-16 such as in figure ensures the welding quality of weld seam by rational welding sequence.
It is provided with groove described in the step (3) in the middle of code plate 21, two sections of T-steels 20 are placed back to back rear clamping in code plate
In 21 groove.
The T-steel after firm supporting is preheated using electrically heated method in the step (4), the heating zone of preheating
In weld groove both sides, the heating zone of preheating is more than 1.5 times of weld steel plate thickness, and not less than 100mm.Preheating temperature
Using temperature measuring device measure, preheating temperature when the weldment heating surface back side measures, measurement point should the 75mm of electric arc passing point with
Outward, in the positive planar survey of weldment heating surface, should be in electric arc through measuring later.
It is symmetrically welded in the step (4) using wandering sequence or interval welding, prevents local heating too high, causes slideway
Beam deforms.
Slipway beam anti-deformation manufacture craft of the present invention, also including the detection and correction after slipway beam welding.With ruler or angle
The T-steel that chi detection is symmetrically welded, the exceeded T-steel of welding deformation is corrected or local heating correction using mechanical means.Using
During heating correction, correction temperature is no more than 800 DEG C of highest temperature.Slipway beam local heating can use mechanical jack when correcting
The bottom or internal supporting deformation face of slipway beam are withstood on, slipway beam, natural cooling after slipway beam correction is preferably corrected.
Further, the detection after slipway beam welding is also included using ultrasonic wave or the inspection for being accused of to face of weld
Survey, the defect excessive for weld porosity, slag inclusion, overlap, reinforcement is removed from grinder buffing, spade chisel, the mode of drilling and milling；It is right
The unfilled defect of weld size deficiency, undercut, arc crater carries out repair welding.
Certainly, described above is only presently preferred embodiments of the present invention, and the present invention is not limited to enumerate above-described embodiment, should
When explanation, any those of ordinary skill in the art are all equivalent substitutes for being made, bright under the guidance of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be subject to protection of the invention.
Claims (7)
1. slipway beam anti-deformation manufacture craft, it is characterised in that H profile steel is cut into symmetrical T-steel, then by two sections of T-steels
Back-to-back welding, slipway beam anti-deformation making step is as follows：
(1) satisfactory H profile steel is selected, the surface to H profile steel is processed；
(2) asymmetrical cutting is carried out in the center of H profile steel, cuts into two sections of symmetrical T-steels, specifically, in the abdomen of H profile steel
Deep interior shallow asymmetric groove, two sections of symmetrical T-steels are cut into by H profile steel over the left and right sides of plate center；
(3) two sections of T-steels are placed back to back, are fixedly connected with code plate, and firm supporting；
(4) T-steel after firm supporting is preheated, and is symmetrically welded, specifically, being symmetrically welded to asymmetric groove, first welded
Deep groove side, then shallow groove side is welded, deep groove side weld is completed afterwards, finally complete shallow groove side weld；
Satisfactory H profile steel is selected in the step (1), using following discriminating step：
A, H profile steel is detected using non-damaging manner, judge H profile steel with the presence or absence of interlayer defect or crackle；
If b, H profile steel have crackle, and crack depth and length no more than 50mm, repair by welding is carried out；
If c, H profile steel have crackle, and crack depth is more than 50mm or crack length adds up to exceed the 20% of H profile steel width,
The H profile steel is abandoned, from other H profile steels, repeat step a；
If d, H profile steel have interlayer defect, interlayer defect depth is no more than 6mm, is removed using mechanical means；
If e, H profile steel have interlayer defect, interlayer defect depth is welded between 6mm-25mm after being removed using mechanical means
Fill up；
If f, H profile steel have interlayer defect, interlayer defect depth is no more than 25mm or the aggregation interlayer defect gross area more than H types
The 4% of the steel gross area, from other H profile steels, repeat step a.
2. slipway beam anti-deformation manufacture craft according to claim 1, it is characterised in that to H profile steel in the step (1)
Surface processed, including remove water, oxide skin, rust and the greasy dirt on H profile steel surface.
3. slipway beam anti-deformation manufacture craft according to claim 1, it is characterised in that code described in the step (3)
It is provided with groove in the middle of plate, two sections of T-steels are placed back to back rear clamping in the groove of code plate.
4. slipway beam anti-deformation manufacture craft according to claim 1, it is characterised in that will support in the step (4)
T-steel after firmly is preheated using electrically heated method, and the heating zone of preheating is in weld groove both sides, the heating zone of preheating
It is more than 1.5 times of weld steel plate thickness.
5. slipway beam anti-deformation manufacture craft according to claim 1, it is characterised in that balanced welding in the step (4)
Connect using wandering sequence or interval welding.
6. slipway beam anti-deformation manufacture craft according to claim 1, it is characterised in that after also including slipway beam welding
Detection and correction, the T-steel that detection is symmetrically welded, the exceeded T-steel of welding deformation are corrected or local heating using mechanical means
Correction.
7. slipway beam anti-deformation manufacture craft according to claim 6, it is characterised in that the inspection after the slipway beam welding
The also detection including face of weld is surveyed, the defect excessive for weld porosity, slag inclusion, overlap, reinforcement is from grinder buffing, shovel
Chisel, the mode of drilling and milling are removed；The defect unfilled to welding undersize, undercut, arc crater carries out repair welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410797032.9A CN104476142B (en) | 2014-12-19 | 2014-12-19 | Slipway beam anti-deformation manufacture craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410797032.9A CN104476142B (en) | 2014-12-19 | 2014-12-19 | Slipway beam anti-deformation manufacture craft |
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| Publication Number | Publication Date |
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| CN104476142A CN104476142A (en) | 2015-04-01 |
| CN104476142B true CN104476142B (en) | 2017-06-16 |
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| CN105436723A (en) * | 2015-12-15 | 2016-03-30 | 安徽伟宏钢结构集团股份有限公司 | Cutting and welding method of rectangular frame steel component |
| CN109304554B (en) * | 2018-12-05 | 2021-03-23 | 保定天威保变电气股份有限公司 | Method for repairing post-welding angle deviation of transformer lifting seat |
| CN112317875A (en) * | 2020-09-29 | 2021-02-05 | 中冶(上海)钢结构科技有限公司 | Anti-deformation cutting method for H-shaped steel web |
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| WO1994017951A1 (en) * | 1993-02-04 | 1994-08-18 | Nippon Steel Corporation | Welding deformation reducing method for one-side strap joint welding |
| CN100485371C (en) * | 2005-12-01 | 2009-05-06 | 渤海船舶重工有限责任公司 | Automatic online detection method for defects on upper and lower surfaces during steel plate pretreatment process |
| CN101734557A (en) * | 2009-11-18 | 2010-06-16 | 中冶天工建设有限公司 | Process for manufacturing super-large I-shaped crane beam |
| CN101862942B (en) * | 2010-06-25 | 2011-11-09 | 鞍山东方钢结构有限公司 | Production process method of pipe whip restraint steel structure of main power house of nuclear power station conventional island |
| CN202124069U (en) * | 2011-06-23 | 2012-01-25 | 上海福柯实业有限公司 | Expansion type residence vehicle |
| CN102974927A (en) * | 2012-11-26 | 2013-03-20 | 南车二七车辆有限公司 | Welding method for lengthening H-shaped steel of railway freight platform wagon chassis |
| CN104196166B (en) * | 2014-09-01 | 2016-04-13 | 江苏沪宁钢机股份有限公司 | A kind of preparation method of ultra-large type combination H type section Steel Column |
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