CN204053264U - A kind of cut deal not back chipping docks the transition structure of full penetration I level component - Google Patents

A kind of cut deal not back chipping docks the transition structure of full penetration I level component Download PDF

Info

Publication number
CN204053264U
CN204053264U CN201420498818.6U CN201420498818U CN204053264U CN 204053264 U CN204053264 U CN 204053264U CN 201420498818 U CN201420498818 U CN 201420498818U CN 204053264 U CN204053264 U CN 204053264U
Authority
CN
China
Prior art keywords
splice plate
karma
welding bead
protector
cut deal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420498818.6U
Other languages
Chinese (zh)
Inventor
严文凯
吕德林
吕金炭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI YUANSHENG STEEL STRUCTURE Co Ltd
Original Assignee
HUBEI YUANSHENG STEEL STRUCTURE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HUBEI YUANSHENG STEEL STRUCTURE Co Ltd filed Critical HUBEI YUANSHENG STEEL STRUCTURE Co Ltd
Priority to CN201420498818.6U priority Critical patent/CN204053264U/en
Application granted granted Critical
Publication of CN204053264U publication Critical patent/CN204053264U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Arc Welding In General (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The utility model discloses the transition structure of a kind of cut deal not back chipping docking full penetration I level component, relating to the structure of a kind of cut deal when connecing welding.It comprises cut deal, splice plate welding bead, technique groove, ceramic substrate, the first protector, the second protector, Karma, technique set square; Ceramic substrate between the first protector and the second protector, wherein one end of the first protector and ceramic substrate all with end in contact under the first splice plate, the other end of the second protector and ceramic substrate all with end in contact under the second splice plate; The two ends of Karma are connected with the first splice plate upper end with the second splice plate upper end respectively, two long limits of technique set square respectively with Karma and cut deal; Introduce arc plate two ends to contact with the second splice plate with the first splice plate respectively, draw arc plate two ends and contact with the second splice plate with the first splice plate respectively.Splice plate welding bead described in the utility model can one-shot forming, does not need the reverse side carbon arc air gouging back chipping after carrying out turnover panel, bottoming, filling, capping operation.

Description

A kind of cut deal not back chipping docks the transition structure of full penetration I level component
Technical field
The utility model relates to the structure of a kind of cut deal when connecing welding, specifically the transition structure of a kind of cut deal not back chipping docking full penetration I level component.
Background technology
Cut deal structure has been widely used in fields such as the boats and ships deck of boat and housing, harbour machinery case beam, bridge spanning the sea panels, and cut deal is connected in structure steel fabrication welding and accounts for important part, directly affects product quality and production efficiency.
Prior art is when connecing cut deal to welding, before this at the technique groove of the opening one side V-type of cut deal or the technique groove of double open K type, then direct two cut deal intervals with technique groove are placed on jig, and on jig, the gap (splice plate welding bead) between two blocks of cut deals is welded, when welding described two spaced apart cut deals, described two cut deal lower ends are not placement members.
Above-mentioned prior art, when carrying out connecing welding to cut deal, first needs to carry out turnover panel operation to cut deal, also needs to carry out back chipping, bottoming, filling and capping operation successively to cut deal after turnover panel completes, aforesaid operations scheme is comparatively complicated, consuming time longer, cost drops into higher, and labor strength is large, production efficiency is low, plate deformation is wayward, and product percent of pass is not high, is only limited to plate docking, range of application is narrower, is therefore necessary to improve.
Summary of the invention
The purpose of this utility model is the weak point in order to overcome background technology, and provides the transition structure of a kind of cut deal not back chipping docking full penetration I level component.
To achieve these goals, the technical solution of the utility model is: a kind of cut deal not back chipping docks the transition structure of full penetration I level component, comprise two spaced apart cut deals, gap between two cut deals is splice plate welding bead, described two cut deals are equipped with the technique groove of V-type in one end adjacent with splice plate welding bead, two cut deals are respectively the first splice plate and the second splice plate, it is characterized in that: also comprise the ceramic substrate with U-lag mouth, with the first protector of ceramic substrate uniform thickness, with the second protector of ceramic substrate uniform thickness, be located at the Karma of splice plate welding bead upper end, be located at the introducing arc plate on front side of splice plate welding bead, be located at the extraction arc plate on rear side of splice plate welding bead, ceramic substrate between the first protector and the second protector, wherein one end of described first protector and ceramic substrate all with end in contact under the first splice plate, the other end of described second protector and ceramic substrate all with end in contact under the second splice plate, the bottom, one end of described Karma is connected with the first splice plate upper end, the other end bottom of Karma is connected with the second splice plate upper end, the two ends, front side of described Karma and the rear side two ends of Karma are equipped with technique set square, one of them long limit of described technique set square is connected with Karma, and another long limit of technique set square is connected with cut deal upper end, described introducing arc plate two ends respectively with the first splice plate on front side of and the second splice plate frontside contacts, draw arc plate two ends respectively with the first splice plate on rear side of and the second splice plate rear contact.
In technique scheme, the slope angle α of described technique groove is 15 ~ 20 °, and groove back gauge L is 5 ~ 15mm, and the length n of root face is 1 ~ 2.5mm.
The technological parameter of above-mentioned technique groove is got by long-term practice, and it is the key ensureing to reach after shaping two blocks of cut deals of spelling not back chipping full penetration I level component.
In technique scheme, the distance between described two cut deals is 8 ~ 14mm.
In technique scheme, one-sided welding bead is provided with on the left of described technique set square or on the right side of technique set square, one-sided welding bead is provided with on front side of Karma or on rear side of Karma, described Karma is all connected with cut deal upper end by one-sided welding bead with technique set square, is connected between Karma with technique set square by one-sided welding bead.
In technique scheme, the length of described one-sided welding bead is 100 ~ 150mm.
In technique scheme, described introducing arc plate or be first dull and stereotyped, or be made up of two pieces of second flat boards being assembled into V-shaped, the V-shaped passageway between described two the second flat boards is mated with splice plate welding bead; Described extraction arc plate or be first dull and stereotyped, or be made up of two pieces of second flat boards being assembled into V-shaped, the V-shaped passageway between described two the second flat boards is mated with splice plate welding bead.
Technique set square, link together can not only carry out spacing to cut deal by one-sided welding bead between Karma and cut deal, and the dismounting Karma making staff convenient and technique set square.One-sided welding bead fastening procedure set square, Karma and cut deal time, can prevent cut deal weld time stress change and produce the deformation of creep.
The utility model is a kind of transition structure when connecing cut deal to welding, and it all has the prospect be widely used in the fields such as high-rise building steel structure, Ship Structure, pressure vessel and bridge structure and main equipment manufacture.
The utility model opens V-butt by the wherein one end at plate, reserved certain root face, and reserve certain welded gaps when connecing welding between two blocks of cut deals, ceramic substrate is added in splice plate welding bead lower end, the protector with welding ceramics liner uniform thickness is added at the two ends of welding ceramics liner, reserved certain anti-deformation carries out pre-control, thus the weldquality making the utility model weld is secure, docking plate is not yielding, production efficiency is high, field joint operation is fast, processing ease, human resources can be saved in a large number, labor strength can be reduced, production cost can be reduced, detected a flaw by ultrasonic wave UT, mechanical properties test, microstructure observation and analysis, the feasibility all demonstrating this technique all meets national regulation requirement, application should be widelyd popularize.
Accompanying drawing explanation
Fig. 1 is that two intervals are arranged and do not offer the structural representation of the cut deal of technique groove.
Fig. 2 is the structural representation of the ceramic substrate with U-lag mouth.
Fig. 3 is the structural representation of technique set square.
Fig. 4 is the structural representation of Karma.
Fig. 5 is structural representation when single cut deal offering technique groove.
Fig. 6 is the front views of two cut deals offering technique groove when arranging at interval.
Fig. 7 be by ceramic substrate, protector is positioned over cut deal lower end time structural representation.
Fig. 8 be the utility model when reserved certain anti-deformation carries out pre-control, the syndeton schematic diagram of ceramic substrate, protector, Karma, technique set square and cut deal.
Fig. 9 is Karma, technique set square, the syndeton schematic diagram introducing arc plate, draw arc plate and cut deal.
1-cut deal in figure, 11-first splice plate, 12-second splice plate, 2-U shape notch, 3-ceramic substrate, 4-technique groove, 51-splice plate welding bead, the one-sided welding bead of 52-, 6-protector, 7-Karma, 8-technique set square, 91-introduces arc plate, and 92-draws arc plate.
Detailed description of the invention
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not form to restriction of the present utility model, only for example.Make advantage of the present utility model clearly and easy understand by explanation simultaneously.
Accompanying drawings is known: a kind of cut deal not back chipping docks the transition structure of full penetration I level component, comprise two spaced apart cut deals 1, gap between two cut deals 1 is splice plate welding bead 511, described two cut deals 1 are equipped with the technique groove 4 of V-type in one end adjacent with splice plate welding bead 511, two cut deals 1 are respectively the first splice plate 11 and the second splice plate 12, it is characterized in that: also comprise the ceramic substrate 3 with U-lag mouth 2, with the first protector 61 of ceramic substrate 3 uniform thickness, with the second protector 62 of ceramic substrate 3 uniform thickness, be located at the Karma 7 of splice plate welding bead 511 upper end, be located at the introducing arc plate 91 on front side of splice plate welding bead 511, be located at the extraction arc plate 92 on rear side of splice plate welding bead 511, ceramic substrate 3 between the first protector 61 and the second protector 62, wherein one end of described first protector 61 and ceramic substrate 3 all with the first splice plate 11 times end in contact, the other end of described second protector 62 and ceramic substrate 3 all with the second splice plate 12 times end in contact, the bottom, one end of described Karma 7 is connected with the first splice plate 11 upper end, the other end bottom of Karma 7 is connected with the second splice plate 12 upper end, the two ends, front side of described Karma 7 and the rear side two ends of Karma 7 are equipped with technique set square 8, one of them long limit of described technique set square 8 is connected with Karma 7, and another long limit of technique set square 8 is connected with cut deal 1 upper end, described introducing arc plate 91 two ends respectively with the first splice plate 11 on front side of and the second splice plate 12 frontside contacts, draw arc plate 92 two ends respectively with the first splice plate 11 on rear side of and the second splice plate 12 rear contact.
The slope angle α of described technique groove 4 is 15 ~ 20 °, and groove back gauge L is 5 ~ 15mm, and the length n of root face is 1 ~ 2.5mm.
Distance between described two cut deals 1 is 8 ~ 14mm.
One-sided welding bead 52 is provided with on the left of described technique set square 8 or on the right side of technique set square 8, one-sided welding bead 52 is provided with on front side of Karma 7 or on rear side of Karma 7, described Karma 7 and technique set square 8 are all connected with cut deal 1 upper end by one-sided welding bead 52, are connected between Karma 7 with technique set square 8 by one-sided welding bead 52.
The length of described one-sided welding bead 52 is 100 ~ 150mm.
Described introducing arc plate 91 or be first dull and stereotyped, or be made up of two pieces of second flat boards being assembled into V-shaped, the V-shaped passageway between described two the second flat boards is mated with splice plate welding bead 511; Described extraction arc plate 92 or be first dull and stereotyped, or be made up of two pieces of second flat boards being assembled into V-shaped, the V-shaped passageway between described two the second flat boards is mated with splice plate welding bead 511.
The utility model is the transition structure of cut deal when docking welding, and during real work, cut deal comprises following processing step when welding,
Step 1: prepare some cut deals 1 for connecing welding, and some for plane-welding and middle part with the ceramic substrate 3 of U-lag mouth 2;
Step 2: carry out monolateral cutting to wherein one end of cut deal 1, makes cut deal end form the technique groove 4 of V-type;
Step 3: by the placement in interval of two cut deals 1 with technique groove 4, and make described two technique grooves 4 in adjacent layout, gap between two cut deals 1 is splice plate welding bead 51, and described two cut deals 1 are respectively the first splice plate 11 and the second splice plate 12;
Step 4: lower end ceramic substrate 3 being positioned over described two cut deals 1, and make the U-lag mouth 2 on ceramic substrate 3 be positioned at immediately below described splice plate welding bead 51, be placed with at the two ends of ceramic substrate 3 be positioned at cut deal 1 lower end and with the protector 6 of ceramic substrate 3 uniform thickness;
Step 5: the splicing junction upper ends Karma 7 of described two cut deals 1, make bottom, one end and first splice plate 11 upper-end contact of Karma 7, the other end bottom of Karma 7 and the second splice plate 12 upper-end contact, technique set square 8 is all placed in the both sides, one end of Karma 7 and the other end both sides of Karma 7, and one of them long limit of technique set square 8 is contacted with Karma 7, another long limit of technique set square 8 is contacted with cut deal 1;
Step 6: on cut deal 1, one side weld is carried out to form one-sided welding bead 52 to Karma 7 and technique set square 8, cut deal 1, Karma 7 and technique set square 8 is made to connect into an entirety, add in one end of described splice plate welding bead 51 and introduce arc plate 91, introducing arc plate 91 two ends are contacted with the second splice plate 12 with the first splice plate 11 respectively, add at the other end of described splice plate welding bead 51 and draw arc plate 92, extraction arc plate 92 two ends are contacted with the second splice plate 12 with the first splice plate 11 respectively;
Step 7: cut deal 1 complete aforesaid operations and check and accept on inspection errorless after, first by manual electric arc welding or medicine core CO2 weldering, bottoming is carried out to splice plate welding bead 51, then by manual electric arc welding or medicine core CO2 weldering, splice plate welding bead 51 is filled, then to be welded by manual electric arc welding or medicine core CO2 or submerged-arc welding carries out capping to splice plate welding bead 51;
Step 8: to completing bottoming, the splice plate welding bead 51 of filling and capping three steps carries out surface inspection and ultrasonic wave UT detects a flaw, and selects certified products wherein;
Step 9: the Karma 7 above cut deal 1 and technique set square 8 are removed, and the one-sided welding bead 52 cut deal 1 being used for reinforce Karma 7 and technique set square 8 is carried out polishing reparation;
Step 10: adopt the mode of gas flame cuttiug introducing arc plate 91, extraction arc plate 92 to be removed;
Step 11: cut deal 1 is carried out turnover panel operation, and folding is except the welding ceramics liner 3 on cut deal and protector 6;
Step 12: by assembled be that overall two cut deals 1 are numbered and amplify mark and turn sequence, and send into next process.
When welding described two blocks of cut deals, to be that shiny red is medium be as the criterion the weld seam at welding speed of travel splice plate welding bead place during welding, when shaping rule is to weld, welding bead overflows foreign gas is evenly degree, principle is controlled in welding total when welding described two blocks of cut deals: improve arc voltage, and forming coefficients increases (when electric current, weldering speed are constant).
In addition plate Karma and the fastening location of technique set square to impose one-sided welding bead in addition fastening, in case produce the complicated deformation of creep of STRESS VARIATION during welding at the interface two ends, front of docking plate.
Splice plate welding bead described in the utility model can one-shot forming, does not only need to carry out turnover panel operation after cut deal completes front welding, and does not need the reverse side carbon arc air gouging back chipping after carrying out turnover panel, bottoming, filling, capping operation.
The utility model opens V-butt by the wherein one end at plate, reserved certain root face, and reserve certain welded gaps when connecing welding between two blocks of cut deals, ceramic substrate is added in splice plate welding bead lower end, the protector with welding ceramics liner uniform thickness is added at the two ends of welding ceramics liner, reserved certain anti-deformation carries out pre-control, thus make welded seam welding bead quality described in the utility model secure, docking plate is not yielding, production efficiency is high, field joint operation is fast, processing ease, human resources can be saved in a large number, reduction workman works and slightly reduces investment of production input cost, detected a flaw by ultrasonic wave UT, mechanical properties test, microstructure observation and analysis, the feasibility all demonstrating this technique all meets national regulation requirement, application should be widelyd popularize.
After installing ceramic substrate additional, the utility model shaping speed is fast, effective, work task efficiency can be improved, liner is placed on the groove back side of steel plate and workpiece defined, from front welding can two-sided one-shot forming, sealing run shaping full, soldering is neat again.Meanwhile, the utility model improves welding condition, saves reprint time and back gouging operation, reduces the labour intensity of workman, thus greatly increase production efficiency.
The utility model has in fields such as high-rise building steel structure, Ship Structure, pressure vessel and bridge structure and main equipment manufactures the prospect be widely used.
During real work, the utility model is after cut deal front completes bottoming, filling and capping operation, without reprint, carbon arc air gouging back chipping, again at the bottom of injection, filling, capping, whole operating process only for once, therefore, plate is not yielding, weld passes welding quality is secure, easily operates, and production efficiency is high, investment of production input cost is few, can save a large amount of human resources.Particularly execute-in-place is fast, and labor strength reduces.
The utility model, except being applicable to plate docking, go back clamping plate and the outside plate welding of particularly suitable Ship Structure, the docking welding procedure of box-structure job site, and the docking of long straight weld is constructed and the welding procedure of hidden weld seam.
The utility model is the groove back side at steel plate and workpiece defined, place ceramic substrate, be equipped with suitable welding parameter, adopt manual electric arc welding backing welding, fill the mode of weldering and cosmetic welding, downhand welding, vertical position welding, horizontal position welding welding operation can be carried out, have than tradition splicing welding method (butt welding) extension and widen very greatly, the splicing welding joint of the hull of ship domain, clamping plate and outside plate can be applied to, skyscraper field splicing welding joint, the field such as splicing, machinery, equipment, the splicing of bearing structure of long straight weld.
During real work, the utility model is needed to be visually observed by operating personnel and splice the levelness of (or two workpiece) or linearity and to go forward side by side Row sum-equal matrix, and manual operation has certain influence to there is certain error.In addition, on splicing plate, weld bond junction need be fixed fastening with Karma and technique set square and impose on one-sided welding bead and be fastenedly connected fixing, after single face welding and double face shaping technique completes, Karma need be cut, polish fastening welding bead, have certain influence to jigsaw is attractive in appearance, take certain hour, but compared with traditional board joint method, traditional board-splicing process such as superiority, applicability, cost performance have clear improvement.
Other unaccounted part all belongs to prior art.

Claims (6)

1. the transition structure of a cut deal not back chipping docking full penetration I level component, comprise two spaced apart cut deals (1), gap between two cut deals (1) is splice plate welding bead (51), described two cut deals (1) are equipped with the technique groove (4) of V-type in one end adjacent with splice plate welding bead (51), two cut deals (1) are respectively the first splice plate (11) and the second splice plate (12), it is characterized in that:
Also comprise with U-lag mouth (2) ceramic substrate (3), with first protector (61) of ceramic substrate (3) uniform thickness, with second protector (62) of ceramic substrate (3) uniform thickness, be located at splice plate welding bead (51) upper end Karma (7), be located at the introducing arc plate (91) of splice plate welding bead (51) front side, be located at the extraction arc plate (92) of splice plate welding bead (51) rear side;
Ceramic substrate (3) is positioned between the first protector (61) and the second protector (62), wherein one end of described first protector (61) and ceramic substrate (3) all with end in contact under the first splice plate (11), the other end of described second protector (62) and ceramic substrate (3) all with end in contact under the second splice plate (12);
The bottom, one end of described Karma (7) is connected with the first splice plate (11) upper end, the other end bottom of Karma (7) is connected with the second splice plate (12) upper end, the two ends, front side of described Karma (7) and the rear side two ends of Karma (7) are equipped with technique set square (8), one of them long limit of described technique set square (8) is connected with Karma (7), and another long limit of technique set square (8) is connected with cut deal (1) upper end;
Described introducing arc plate (91) two ends respectively with the first splice plate (11) front side and the second splice plate (12) frontside contacts, draw arc plate (92) two ends respectively with the first splice plate (11) on rear side of and the second splice plate (12) rear contact.
2. the transition structure of a kind of cut deal according to claim 1 not back chipping docking full penetration I level component, it is characterized in that: the slope angle α of described technique groove (4) is 15 ~ 20 °, groove back gauge L is 5 ~ 15mm, and the length n of root face is 1 ~ 2.5mm.
3. the transition structure of a kind of cut deal according to claim 1 not back chipping docking full penetration I level component, is characterized in that: the distance between described two cut deals (1) is 8 ~ 14mm.
4. a kind of cut deal any one of claims 1 to 3 described in claim not back chipping docks the transition structure of full penetration I level component, it is characterized in that: described technique set square (8) left side or technique set square (8) right side are provided with one-sided welding bead (52), Karma (7) front side or Karma (7) rear side are provided with one-sided welding bead (52), described Karma (7) is all connected with cut deal (1) upper end by one-sided welding bead (52) with technique set square (8), be connected by one-sided welding bead (52) between Karma (7) with technique set square (8).
5. the transition structure of a kind of cut deal according to claim 4 not back chipping docking full penetration I level component, is characterized in that: the length of described one-sided welding bead (52) is 100 ~ 150mm.
6. a kind of cut deal any one of claims 1 to 3 described in claim not back chipping docks the transition structure of full penetration I level component, it is characterized in that: described introducing arc plate (91) or be first dull and stereotyped, or be made up of two pieces of second flat boards being assembled into V-shaped, the V-shaped passageway between described two the second flat boards is mated with splice plate welding bead (51); Described extraction arc plate (92) or be first dull and stereotyped, or be made up of two pieces of second flat boards being assembled into V-shaped, the V-shaped passageway between described two the second flat boards is mated with splice plate welding bead (51).
CN201420498818.6U 2014-09-01 2014-09-01 A kind of cut deal not back chipping docks the transition structure of full penetration I level component Expired - Fee Related CN204053264U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420498818.6U CN204053264U (en) 2014-09-01 2014-09-01 A kind of cut deal not back chipping docks the transition structure of full penetration I level component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420498818.6U CN204053264U (en) 2014-09-01 2014-09-01 A kind of cut deal not back chipping docks the transition structure of full penetration I level component

Publications (1)

Publication Number Publication Date
CN204053264U true CN204053264U (en) 2014-12-31

Family

ID=52194851

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420498818.6U Expired - Fee Related CN204053264U (en) 2014-09-01 2014-09-01 A kind of cut deal not back chipping docks the transition structure of full penetration I level component

Country Status (1)

Country Link
CN (1) CN204053264U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106077918A (en) * 2016-08-30 2016-11-09 昆山华恒焊接股份有限公司 A kind of vacuum adsorption type welder for plate submerged-arc welding splicing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106077918A (en) * 2016-08-30 2016-11-09 昆山华恒焊接股份有限公司 A kind of vacuum adsorption type welder for plate submerged-arc welding splicing

Similar Documents

Publication Publication Date Title
CN204053208U (en) Cut deal not back chipping docks the transition structure of full penetration component
CN101402159B (en) Device and method for testing weldability for rolled steel for vessel
CN104625622B (en) A kind of method for welding ribbon shape slab box-structure
CN104923894B (en) Large H-shaped steel full penetration angle welding exempts from back chipping welding procedure
CN110560849B (en) Soft gasket single-side submerged arc welding process for EH36 high-strength steel thick plate
CN101913017B (en) Method for welding Q420 steel for power grid iron tower
CN102962559A (en) Flux-cored arc welding method for K-shaped groove of 80-mm super-thick steel plate
CN104526136A (en) Method for welding large-gap groove through submerged automatic arc welding
CN106363281B (en) A kind of welding method of building structural steel Q390GJC
CN102009252A (en) Vertical position welding process method of steel for high-strength hull structure
CN104259624B (en) The moulding process of unclear of plate of moderate thickness docking completepenetration I level component
CN104002023A (en) Welding process special for thick dissimilar material plate
CN104475920A (en) Electro-gas welding method suitable for steel plate 50-80mm in thickness
CN102009253A (en) Transverse welding technical method for high-strength steel for ship structure
CN204053264U (en) A kind of cut deal not back chipping docks the transition structure of full penetration I level component
CN107584196A (en) Long-lived Orthotropic Steel Bridge Deck is remained silent the welding procedure of rib
CN204075528U (en) Cut deal not back chipping docks the transition structure of full penetration I level component
CN108927591A (en) Structure welding technique is organized in a kind of container hatch cover of ship
CN204649709U (en) Detect the device of one side welding with back formation root run fire check
CN107838535A (en) A kind of metal flux-cored wire is applied to CO2The horizontal butt-welded method of automatic welding
CN116275909A (en) Manufacturing method of heavy round square variable diameter node
CN110726734A (en) Welding wire crack resistance experiment method
CN204075529U (en) The transition structure of I-steel main weld not back chipping full penetration I level component
CN105583497A (en) High strength alloy steel plate welding technology
CN103286470A (en) Prefabricating method for butt welding horizontal crack for high-strength steel

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141231

Termination date: 20170901