CN101524804B - Steel member manufacturing method - Google Patents

Steel member manufacturing method Download PDF

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Publication number
CN101524804B
CN101524804B CN2009100808953A CN200910080895A CN101524804B CN 101524804 B CN101524804 B CN 101524804B CN 2009100808953 A CN2009100808953 A CN 2009100808953A CN 200910080895 A CN200910080895 A CN 200910080895A CN 101524804 B CN101524804 B CN 101524804B
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China
Prior art keywords
steel
parts
moulding bed
component
finished
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CN2009100808953A
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Chinese (zh)
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CN101524804A (en
Inventor
张朝
王显旺
吴洪涛
陈华周
杨正军
霸虎
俞浩
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中建钢构有限公司
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Abstract

The invention discloses a steel member manufacturing method and pertains to the manufacturing field of steel structure members. The manufacturing method includes: decomposing the steel member into multiple components according to the design dimension and respectively cutting out all components from a steel plate according to the dimension of all components; setting an assembly moulding bed corresponding to a finished steel member structure and placing all components on the assembly moulding bed to join all components into the designed steel member shape; positioning and correcting the joined components to be consistent with the designed dimension and fixedly welding all components after joining, positioning and correcting; finally obtaining the steel member. The method is applicable to producing deformed steel members and solves the problem that the conventional production method can not produce qualified products due to the special structure of the anomalous steel members.

Description

The manufacture method of steel member

Technical field

The present invention relates to the manufacturing field of steel structure member, relate in particular to a kind of manufacture method that is used for odd-shaped cross section steel member.

Background technology

Steel construction is because easy construction, controllability to building style after building up is good, be widely used, Construction of Steel Structure is to carry out as base unit with steel structure member, and the operation of general steel structure member manufacturing is that the continuous productive process technological process of production is undertaken by following step: make steel member finished product after steel plate cutting, assembly unit spot welding, welding, the rectification.

Above-mentioned production method only is applicable to the conventional steel structure member that can produce in enormous quantities, and to the member of special shape, as variable cross-section arc welded H section steel member etc., then can't finish by said method.And in some Construction of Steel Structure, then usually to use special structure form, and the member of variable cross-section arc especially, therefore, steel structure member how to make this special structure form is the problem that a needs solves.

Summary of the invention

Based on above-mentioned existing in prior technology problem, embodiment of the present invention provides a kind of manufacture method of steel member, and a kind of method that is applicable to the manufacturing easily and fast of offbeat form steel member that provides is provided.

The objective of the invention is to be achieved through the following technical solutions:

Embodiment of the present invention provides a kind of steel method for manufacturing component, comprising:

By design size the steel member is decomposed into a plurality of parts, the size by a plurality of parts from the steel plate cuts out each parts respectively;

The moulding bed that adapts with the finished steel element structure is set, each parts is arranged on the moulding bed, splice each parts by the steel member finished form that designs;

Spliced each parts of positioning correcting meet design size, will promptly obtain the steel member after the fixing welding of each parts behind splicing and the positioning correcting.

Describedly cut out each parts respectively by the size of a plurality of parts from the steel plate and specifically comprise:

With constituting the computer design configuration data of each parts of steel member, be input in the numerical control cutting machine, from steel plate, cut out each parts according to the data of importing automatically by numerical control cutting machine.

The moulding bed that described setting and finished steel element structure adapt is arranged on each parts on the moulding bed, splices each parts by the steel member finished form that designs and specifically comprises:

Steel member shape by design forms moulding bed, and each parts that constitutes this steel member are arranged on the moulding bed by the position assembly unit on each comfortable steel member.

Described method also comprises: undertaken temporary fixed to each parts that is arranged on after the assembly unit on the moulding bed by the external stability support component.

The outside adjustable supports parts that use in the described method are jack.

Spliced each parts of described positioning correcting meet design size, specifically comprise promptly obtaining the steel member after the fixing welding of each parts behind splicing and the positioning correcting:

By outside adjustable support, the position between each parts of segmentation adjustment splicing back;

Make in the steel member of each component locations and design this position component consistent, the parts of exchanging behind the position of adjusting are undertaken fixedly connected by welding manner;

The repetition above-mentioned steps is all welded fixing until all parts, promptly obtain the finished steel member.

The technical scheme that is provided by the invention described above embodiment as can be seen, in the embodiment of the present invention by the steel member being decomposed into a plurality of parts by design size, cut out each parts of the steel member that meets design size from steel plate, and each parts is arranged on the moulding bed that adapts with steel member shape, steel member finished form by design splices each parts, spliced each parts are positioned correction, with the splicing and positioning correcting after each parts fixedly welding obtained the finished steel member afterwards.This method processing procedure is simple, each parts that constitutes the steel member are spliced by the mode that is arranged on the moulding bed, and then each parts is positioned back welding form whole steel member, can be suitable for producing deformed steel member, by large-scale steel spare branch is taken off, the welding of progressively synthetic back, reduced manufacture difficulty, and employing is to the mode of each positioning parts correction, the shape that can guarantee the finished steel member adheres to specification, and improves yield rate, and it is special because of structure to have solved deformed steel member, adopt conventional production method, can't produce the problem of qualified products.

Description of drawings

Fig. 1 is the steel method for manufacturing component flow chart of the embodiment of the invention;

A kind of variable cross-section H type cross section steel element structure schematic diagram that Fig. 2 makes for the steel method for manufacturing component that the embodiment of the invention provides;

Fig. 3 is place's schematic cross-section of the variable cross-section H type cross section steel member made among Fig. 2;

Make the pressure roller distribution schematic diagram of the H shaped steel arbor press that variable cross-section H type cross section steel member uses in the manufacture method that Fig. 4 provides for the embodiment of the invention.

The specific embodiment

The embodiment of the invention provides a kind of production method of steel member, is mainly used in the steel member of producing polymorphic structure, and this method specifically comprises: each parts that cuts out the steel member that meets design size from steel plate; Each parts is arranged on the moulding bed, splices each parts by the steel member finished form that designs; Spliced each parts are positioned correction, will promptly obtain the steel member after the fixing welding of each parts behind splicing and the positioning correcting.This method processing procedure is simple, each parts that constitutes the steel member are spliced by the mode that is arranged on the moulding bed, and then each parts is positioned back welding form whole steel member, can be suitable for producing deformed steel member, solved deformed steel member because of architectural feature, if adopt conventional production method, can't produce the problem of qualified products.

For ease of the understanding to embodiment of the present invention, the invention will be further described below in conjunction with the drawings and specific embodiments.

Embodiment one

Present embodiment provides a kind of steel method for manufacturing component, is mainly used in the deformed steel member of production structure complexity, and as shown in Figure 1, this method specifically comprises:

Step S21 is decomposed into a plurality of parts by design size with the steel member, and the size by a plurality of parts from the steel plate cuts out each parts respectively;

Step S22 is provided with the moulding bed that adapts with the finished steel element structure, and each parts is arranged on the moulding bed, splices each parts by the steel member finished form that designs;

Step S23, spliced each parts of positioning correcting meet design size, will promptly obtain the steel member after the fixing welding of each parts behind splicing and the positioning correcting.

In the said method, each parts that cuts out the steel member that meets design size from steel plate among the step S21 specifically comprise:

The computer design configuration data (being generally the CAD GDF of computer drawing software) of each parts of steel member will be constituted, be input in the numerical control cutting machine, numerical control cutting machine cuts out each parts according to the figure automatic batch that provides by cad data file from the steel plate that the data file of input provides.

Among the step S22 of said method, the moulding bed that adapts with the finished steel element structure is set, each parts is arranged on the moulding bed, splice each parts by the steel member finished form that designs and specifically comprise:

Steel member shape by design forms moulding bed, and each parts that constitutes this steel member are arranged on the moulding bed by the position assembly unit on each comfortable steel member.Be generally the stress deformation that prevents in the assembly unit process, undertaken temporary fixed by the external stability support component each parts that is arranged on after the assembly unit on the moulding bed.

Among the step S23, spliced each parts of positioning correcting meet design size, specifically comprise promptly obtaining the steel member after the fixing welding of each parts behind splicing and the positioning correcting:

By outside adjustable support, the general jack that adopts, with the position between each parts of segmented mode adjustment splicing back, make adjusted each component locations meet that this position component, size are consistent in the finished steel member, the parts of exchanging behind the position of adjusting are fixed by welding manner;

Repeat above-mentioned steps after all parts are all fixed by welding manner, promptly obtain whole steel member finished product.

Process with manufacturing variable cross-section arc welded H section steel member is an example, above-mentioned manufacture method is specifically described, the structure of this steel member is shown in Fig. 2,3, mainly constitute by web 2, flange plate 1, wherein, web adopts gradual change height steel plate, makes whole H steel column become variable cross-section arc welded H type structure, it is mainly used in supports outer-ring beam and facade curtain wall, specific as follows to the process that this steel member is made:

(1) at first, carry out the blanking of plate:

Number material of each parts: because of member is the variable cross-section arc component, be the raw-material reasonable utilization rate of assurance during blanking, with the mode segmentation of web with angle of chamfer, every section web adopts concentrates number method of material to carry out discharge on the monoblock steel plate, numbering, and the cad data file of the computer drawing software of every section steel plate edited by FASTCAM be input in the NC flame cutting machine, from steel plate, cut out each parts in batches, after finishing in 1: 1 pair of web processes hole setting-out of the enterprising pedestrian worker of web, re-use the portable copying cutting machine of Japanese 1K-54D type after finishing and configure track according to the good ellipse of setting-out, elliptical aperture in the middle of the web is cut, obtain the shape of web after the cutting;

In the said method, when steel plate is adopted the gas cutting cutting, emit the slot width of gas cutting, its width is generally 2.5mm; Before the gas cutting, should remove dirt, the grease of steel surface, and reserve certain space below, be beneficial to blowing out of slag, must prevent tempering during gas cutting.

Put web ground sample in 1: 1 ratio again after the single hop web completes, the web of 3 segmentations is spliced into integral body, consider the stress deformation in the assembling process in later stage, the web splicing is adopted temporary fixed, and measurement update is carried out to it in every section temporary fixed good back of web;

Flange plate adds the 30mm surplus by length after launching and becomes straight plate with the blanking of vertical bar cutting machine, on the symmetrical expression three rolls plate bending machine, roll by drawing then and curve arc, can be according to designing requirement, radian by flange plate calculates the angle that three rollers will be adjusted, the final radian of flange plate is to utilize the contraction of welding to form, so adopt veneer reeling machine to carry out curved arc, radian can be slightly smaller than the design radian.

(2) overall package of member:

Each parts by after numbering stacking rationally, is built positive and negative two small-sized moulding beds, and the moulding bed shape of formation adapts with the steel member shape of preparing manufacturing, use measurement and positioning, the strict moulding bed absolute altitude of controlling, and width and height tolerance should be in 1mm;

During assembling inboard wing listrium, earlier web is placed on the moulding bed, its edge is abutted against on the upright pole of moulding bed, then the flange plate that processes is placed on the moulding bed,, then jack is placed on the flange plate outside the central point and the web center-aligned of flange plate, by jack flange plate and web are held out against, again that the central point solid welding of flange plate and web is fixed, use identical method that two terminations are fixed, progressively flange plate and web spot welding are located every certain distance after finishing; Fix at the other welding sign indicating number of flange plate plate behind the intact point of every spot welding, this jack is replaced, jack can be recycled;

Utilize the straddle truck in the factory that steel column is stood up, and be placed on another moulding bed, the inboard wing listrium is carried out the assembling of spot welding location with web on opposite moulding bed with identical method.Use steel ruler and self-control slide calliper rule that the steel member is measured after finishing, keep the concordant of two flange plates.As two flange plate generation warpages, can use the flame straightening or use jack to adjust;

Web and flange plate use falsework to be supported between web and the flange plate, prevent welding deformation; The welding of steel member adopts carbon dioxide gas arc welding to weld, earlier the place of web splicing is welded during welding, adopt the method for welding respectively to both sides simultaneously by the centre then by two welding technologies and two close welders of speed, weld, to reduce welding deformation, the end plate with two ends after the member body welding is finished welds;

(3) rectification of steel member:

Through welding, the flange plate of variable cross-section H shaped steel certainly leads to bacterium shape distortion, and the perpendicularity of flange plate and web also has deviation, can utilize H shaped steel arbor press to solve this two problems.The deflector roll of H shaped steel arbor press arranges as shown in Figure 4, and corresponding with steel construction workpiece 21 is correct roller 22, is carrying roller 23 initiatively below the steel construction workpiece 21, can carry out vertical correction up and down from steel construction workpiece 21 sections.Find out from the smoothing principle, the correct roller 22 that can be both sides presses down, also can be that initiatively carrying roller 23 moves up and down, and adjust about 22 works of both sides correct roller, mechanism's operating ratio is more reasonable like this, but simultaneously because moving up and down of carrying roller 23 initiatively, roller-way also needs to adjust its height before and after the H shaped steel arbor press, in the reality, the corrective operations of H shaped steel arbor press can be carried out according to the needs that reality is corrected;

(4) control of welding quality

The technological measure of control welding deformation

Welding sequence controls improper easy generation distortion and stress is concentrated, and therefore takes following technical measures to control welding deformation when welding, when specifically welding, can adopt following step:

1. weld both sides again in the middle of the weldering earlier;

2. the stressed big rod member of weldering welds stressed little rod member more earlier;

3. the weldering tension member welds compression member more earlier;

4. the few position of first welding line is the many positions of welding line again;

5. reduce to restrain, make the weldment can free shrink as far as possible, should first welding structure in the weld seam of amount of contraction maximum;

6. adopt the measure that reduces hydrogen and the hydrogen that disappears to handle (pneumatic shovel, 2 pounds of bulb iron knockings).

By above-mentioned treatment step, promptly make variable cross-section arc welded H section steel member as shown in Figure 2.

In sum, to cut out each parts that constitutes the steel member from steel plate in the embodiment of the invention, and splice by the mode that each parts is arranged on the moulding bed, and then each parts is positioned back welding form whole steel member, can be suitable for producing deformed steel member, it is special because of structure to have solved deformed steel member, adopt conventional production method, each parts accurately can't be spliced into baroque steel member product, and because the problems such as stress deformation in the welding process also are that conventional production method is uncontrollable.

The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims (5)

1. the manufacture method of a steel member is characterized in that, comprising:
By design size the steel member is decomposed into a plurality of parts, the size by a plurality of parts from the steel plate cuts out each parts respectively;
The moulding bed that adapts with the finished steel element structure is set, each parts is arranged on the moulding bed, splice each parts by the steel member finished form that designs;
Spliced each parts of positioning correcting meet design size, will promptly obtain the steel member after the fixing welding of each parts behind splicing and the positioning correcting, specifically comprise: by outside adjustable support, and the position between each parts of segmentation adjustment splicing back; Make in the steel member of each component locations and design this position component consistent, the parts of exchanging behind the position of adjusting are undertaken fixedly connected by welding manner; The repetition above-mentioned steps is all welded fixing until all parts, promptly obtain the finished steel member.
2. steel method for manufacturing component according to claim 1 is characterized in that, describedly cuts out each parts respectively by the size of a plurality of parts from the steel plate and specifically comprises:
With constituting the computer design configuration data of each parts of steel member, be input in the numerical control cutting machine, from steel plate, cut out each parts according to the data of importing automatically by numerical control cutting machine.
3. steel method for manufacturing component according to claim 1 is characterized in that, the moulding bed that described setting and finished steel element structure adapt is arranged on each parts on the moulding bed, splices each parts by the steel member finished form that designs and specifically comprises:
Steel member shape by design forms moulding bed, and each parts that constitutes this steel member are arranged on the moulding bed by the position assembly unit on each comfortable steel member.
4. steel method for manufacturing component according to claim 3 is characterized in that, described method also comprises: undertaken temporary fixed to each parts that is arranged on after the assembly unit on the moulding bed by the external stability support component.
5. steel method for manufacturing component according to claim 4 is characterized in that, the outside adjustable support that uses in the described method is jack.
CN2009100808953A 2009-03-27 2009-03-27 Steel member manufacturing method CN101524804B (en)

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