CN104296941A - Fillet weld tightness test method of hull structure - Google Patents
Fillet weld tightness test method of hull structure Download PDFInfo
- Publication number
- CN104296941A CN104296941A CN201410561715.4A CN201410561715A CN104296941A CN 104296941 A CN104296941 A CN 104296941A CN 201410561715 A CN201410561715 A CN 201410561715A CN 104296941 A CN104296941 A CN 104296941A
- Authority
- CN
- China
- Prior art keywords
- welding
- upper plate
- motor
- weld
- annular blade
- 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.)
- Pending
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a fillet weld tightness test method of a hull structure. The method includes the steps that rust removal is conducted on the surface of an upper plate and the surface of a lower plate before fillet welding is conducted, and a long hole is formed in the lower portion of the upper plate through a special slotting machine; a titanium alloy steel strip is filled with carborundum and then is put into the long hole, and welding blocking and full weld can be prevented effectively; webs are arranged on the two sides of the upper plate, then welding is conducted, and trolley fully-automatic welding is adopted; after welding is finished, an air inflation test is conducted through air inflation pipes, foam water is coated on a welding layer to detect air leakage points, and repair welding is conducted if air leakage exits. The slotting machine comprises an annular blade, a motor, a locking nut and a positioning block. The annular blade is arranged on a rotating shaft of the motor. The positioning block is arranged below the motor through the locking nut and abuts against the upper plate, the annular blade is made to be located in the middle of the plate thickness after the locking nut is adjusted and is moved slowly to cut a groove. The radius of the long hole ranges from 0.5 mm to 0.6 mm. By means of the fillet weld tightness test method, and one-time cut-through can be achieved.
Description
Technical field
The present invention relates to a kind of tightness test for filler weld method of Ship Structure, in particular for the hull watertight member of square groove, belong to technical field of ships.
Background technology
In Ship Structure, the citation form of weld seam has butt-weld and fillet weld two kinds, and wherein fillet weld is the modal weld seam form of Ship Structure, accounts for 80% to 90% of weld seam.This is because shell is made up of a large amount of grillages, and framed plate structure is made up of one piece of sheet metal and transverse and longitudinal stiffener, and these stiffeners are many to be connected on sheet metal by fillet weld.Shell weight as certain bulk freighter is approximately 15000 tons, and weld seam metal quality used is approximately 60 tons.Although the deviser of boats and ships and fabricators have made a lot of effort in minimizing hull weight, such as by reducing thickness and the size of component, but few people are placed on notice and reduce in fillet weld size, because the quality of these fillet welds only account for a little part for general construction quality.But the reduction of weld size can cause very large impact to the cost of structure, can reduce construction time, labor, weld seam waste material etc.; Size of welds as reduced 20% will reduce 36% of weld seam steel use amount; For another example the welding of shell probably needs identical man-hour with splicing, probably account for 60% of shell completion date when these two operations are total, and this just means that the welding of hull approximately account for 30% of the cost of shell building.In Modern Shipbuilding technology, welding is the crucial technique of of hull construction, the research of welding seam design produces consumption to ensureing the welding deformation of Ship Structure Graphing load-bearing capacity, reduction structure, the assembly technology simplifying ship, shortening manufacturing cycle and reducing, and has very important meaning.But there is the full weld phenomenon of local in fillet weld at present when welding, cause and effectively can not implement leakage test, and be irreversible, therefore often to find out full weld point to split, carry out test sealing again, therefore efficiency is very low, is a urgent problem.
Summary of the invention
The object of this invention is to provide a kind of tightness test for filler weld method of Ship Structure.
The problem to be solved in the present invention is the deficiency that existing fillet weld often has full weld phenomenon.
For realizing object of the present invention, the technical solution used in the present invention is:
A tightness test for filler weld method for Ship Structure, comprises the following steps:
Upper plate and lower board surface first eliminate rust by a before fillet welding, and open an elongated hole by Special-purpose grooving machine in the bottom of upper plate;
B fills emery in titanium alloy reticulated bar, then titanium alloy reticulated bar is put into elongated hole, effectively can prevent the generation of welding blocking full weld phenomenon;
C welds after web is placed in upper plate both sides, adopts dolly Full-automatic welding;
Carry out aeration test by gas-filled tube after D welds, smear foam water at weld layer and detect gas leakage point, carry out repair welding if any gas leakage.
Described groover comprises annular blade, motor, set nut, locating piece, annular blade is arranged in the rotating shaft of motor, locating piece is arranged on below motor by set nut, locating piece is against upper plate, set nut makes annular blade be positioned at the middle part of thickness of slab after regulating, and then slowly movement is carried out cutting groove.
The radius of described elongated hole is 0.5-0.6mm.
Advantage of the present invention: the fillet welding leakage test method adopting this technique, can be once through, should have market outlook widely.
Accompanying drawing explanation
Fig. 1 is the schematic diagram before the tightness test for filler weld method fillet welding of a kind of Ship Structure of the present invention;
Fig. 2 is the schematic diagram after the tightness test for filler weld method fillet welding of a kind of Ship Structure of the present invention;
Fig. 3 is the schematic diagram of the tightness test for filler weld method titanium alloy reticulated bar of a kind of Ship Structure of the present invention;
Fig. 4 is the schematic diagram of the tightness test for filler weld method groover of a kind of Ship Structure of the present invention;
Fig. 5 is the stereographic map of the tightness test for filler weld method fillet welding sealing test of a kind of Ship Structure of the present invention;
In figure: 1, lower plate 2, upper plate 3, elongated hole 4, titanium alloy reticulated bar 5, annular blade 6, motor 7, set nut 8, locating piece 9, web 10, gas-filled tube.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
A tightness test for filler weld method for Ship Structure, comprises the following steps:
A first by upper plate 2 and lower plate 1 surface derusting, and opens an elongated hole 3 by Special-purpose grooving machine in the bottom of upper plate 2 before fillet welding;
B fills emery in titanium alloy reticulated bar 4, has very high fusing point, then titanium alloy reticulated bar 4 is put into elongated hole 3, effectively can prevent the generation of welding blocking full weld phenomenon;
C welds after web 9 is placed in upper plate 2 both sides, adopts dolly Full-automatic welding;
Carry out aeration test by gas-filled tube 10 after D welds, smear foam water at weld layer and detect gas leakage point, carry out repair welding if any gas leakage.
Described groover comprises annular blade 5, motor 6, set nut 7, locating piece 8, annular blade 5 is arranged in the rotating shaft of motor 6, locating piece 8 is arranged on below motor 6 by set nut 7, locating piece 8 is against upper plate 2, set nut 7 makes annular blade 5 be positioned at the middle part of thickness of slab after regulating, then slowly movement is carried out cutting groove, and so neat uniform specification, is conducive to the laying of titanium alloy reticulated bar 4.
The radius of described elongated hole 3 is 0.5-0.6mm, the more tiny welding quality not affecting entirety.
And by and the comparing of Intermediate Gray full weld, the structure that this method produces is more even stress is uniform.
The fillet weld stress envelope of this method
The distribution plan of grandfather tape full weld point
Compared by this figure, it is very even that method of the present invention obtains stress, be conducive to improving whole service life, and testing efficiency is high.
Claims (3)
1. a tightness test for filler weld method for Ship Structure, is characterized in that: comprise the following steps:
A first by upper plate (2) and lower plate (1) surface derusting, and opens an elongated hole (3) by Special-purpose grooving machine in the bottom of upper plate (2) before fillet welding;
B fills emery in titanium alloy reticulated bar (4), then titanium alloy reticulated bar (4) is put into elongated hole (3), effectively can prevent the generation of welding blocking full weld phenomenon;
C welds after web (9) is placed in upper plate (2) both sides, adopts dolly Full-automatic welding;
D welds and carries out aeration test by gas-filled tube (10) afterwards, smears foam water and detects gas leakage point, carry out repair welding if any gas leakage at weld layer.
2. the tightness test for filler weld method of a kind of Ship Structure according to claim 1, it is characterized in that: described groover comprises annular blade (5), motor (6), set nut (7), locating piece (8), annular blade (5) is arranged in the rotating shaft of motor (6), locating piece (8) is arranged on motor (6) below by set nut (7), locating piece (8) is against upper plate (2), set nut (7) makes annular blade (5) be positioned at the middle part of thickness of slab after regulating, and then slowly movement is carried out cutting groove.
3. the tightness test for filler weld method of a kind of Ship Structure according to claim 1, is characterized in that: the radius of described elongated hole (3) is 0.5-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561715.4A CN104296941A (en) | 2014-10-21 | 2014-10-21 | Fillet weld tightness test method of hull structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561715.4A CN104296941A (en) | 2014-10-21 | 2014-10-21 | Fillet weld tightness test method of hull structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104296941A true CN104296941A (en) | 2015-01-21 |
Family
ID=52316769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410561715.4A Pending CN104296941A (en) | 2014-10-21 | 2014-10-21 | Fillet weld tightness test method of hull structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104296941A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370358A (en) * | 2016-12-02 | 2017-02-01 | 钦州学院 | Part for plugging bottom draining screw plug and using method applied to sealing test of liquid tank |
| WO2019041458A1 (en) * | 2017-08-29 | 2019-03-07 | 广船国际有限公司 | Intermittent fillet welding method |
| CN111001958A (en) * | 2019-12-26 | 2020-04-14 | 上海电气集团上海电机厂有限公司 | Welding process for weight reduction manufacturing of marine permanent magnet propulsion motor base |
| CN115046693A (en) * | 2022-08-15 | 2022-09-13 | 中海油能源发展股份有限公司采油服务分公司 | Thin film type LNG transport ship liquid cargo tank inspection method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813921A (en) * | 1972-08-07 | 1974-06-04 | Nippon Kokan Kk | Method of testing the weld zones of roll construction using pressurized air |
| CN1760655A (en) * | 2004-10-13 | 2006-04-19 | 上海外高桥造船有限公司 | Method and device of tightness test for filler weld |
| CN202498326U (en) * | 2012-03-01 | 2012-10-24 | 舟山中远船务工程有限公司 | Section bar assembling and supporting device |
| CN202599621U (en) * | 2012-03-20 | 2012-12-12 | 南通长青沙船舶工程有限公司 | Sealing test structure of ship sectionalized double-side continuous fillet weld |
| CN202831247U (en) * | 2012-10-29 | 2013-03-27 | 安徽富煌钢构股份有限公司 | Steel column and steel girder quake-proof connecting structure |
| CN203216685U (en) * | 2013-04-02 | 2013-09-25 | 江门市南洋船舶工程有限公司 | Fillet weld tightness test apparatus |
| CN103645018A (en) * | 2013-12-05 | 2014-03-19 | 江苏新时代造船有限公司 | Fillet weld inflation test method |
-
2014
- 2014-10-21 CN CN201410561715.4A patent/CN104296941A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813921A (en) * | 1972-08-07 | 1974-06-04 | Nippon Kokan Kk | Method of testing the weld zones of roll construction using pressurized air |
| CN1760655A (en) * | 2004-10-13 | 2006-04-19 | 上海外高桥造船有限公司 | Method and device of tightness test for filler weld |
| CN202498326U (en) * | 2012-03-01 | 2012-10-24 | 舟山中远船务工程有限公司 | Section bar assembling and supporting device |
| CN202599621U (en) * | 2012-03-20 | 2012-12-12 | 南通长青沙船舶工程有限公司 | Sealing test structure of ship sectionalized double-side continuous fillet weld |
| CN202831247U (en) * | 2012-10-29 | 2013-03-27 | 安徽富煌钢构股份有限公司 | Steel column and steel girder quake-proof connecting structure |
| CN203216685U (en) * | 2013-04-02 | 2013-09-25 | 江门市南洋船舶工程有限公司 | Fillet weld tightness test apparatus |
| CN103645018A (en) * | 2013-12-05 | 2014-03-19 | 江苏新时代造船有限公司 | Fillet weld inflation test method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370358A (en) * | 2016-12-02 | 2017-02-01 | 钦州学院 | Part for plugging bottom draining screw plug and using method applied to sealing test of liquid tank |
| WO2019041458A1 (en) * | 2017-08-29 | 2019-03-07 | 广船国际有限公司 | Intermittent fillet welding method |
| CN111001958A (en) * | 2019-12-26 | 2020-04-14 | 上海电气集团上海电机厂有限公司 | Welding process for weight reduction manufacturing of marine permanent magnet propulsion motor base |
| CN115046693A (en) * | 2022-08-15 | 2022-09-13 | 中海油能源发展股份有限公司采油服务分公司 | Thin film type LNG transport ship liquid cargo tank inspection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101402159B (en) | Device and method for testing weldability for rolled steel for vessel | |
| CN104296941A (en) | Fillet weld tightness test method of hull structure | |
| CN102874379B (en) | Manufacture method of offshore riprap leveling ship | |
| CN104014914B (en) | The welding method of high strength steel in Ship Structure | |
| CN102627139A (en) | Final assembly method of ship shafting and rudder system | |
| CN104128694A (en) | Longitudinal seam red copper liner welding process of steel sheet pressure vessel and red copper liner used by same | |
| CN102029457B (en) | Vertical butt welding process of high-strength steel for ship structures | |
| CN104191072A (en) | Welding method of stainless steel clad plate | |
| CN105290573A (en) | Welding method of medium-sized storage tank of 1000m<3>00Cr14Ni14Si4 steel | |
| CN102728980A (en) | Method for limiting and positioning octagonal spud leg in folding process | |
| CN104627319A (en) | Building process of stainless steel liquids hold of 270000DWT (deadweight tonnage) chemicals/product oil tanker | |
| CN103551750A (en) | Welded pipe and manufacturing method thereof | |
| CN103692061A (en) | Butt-welding method using dual-gun automatic horizontal welding bogie | |
| CN104590521A (en) | Installation process for fairing of bulk cargo ship | |
| CN104191097A (en) | Back-chipping-free welding process for X-type grooves of plates of moderate thickness | |
| CN203495475U (en) | Novel flat bulb steel rapid positioning tool | |
| CN102009253A (en) | Transverse welding technical method for high-strength steel for ship structure | |
| CN205998094U (en) | A kind of two-sided welding structure of U rib of putting more energy into of orthotropic stiffener | |
| CN102848053B (en) | Assembly and flame process for trunk bulkhead deck | |
| CN102699653A (en) | Tailor-welding and bending method for multi-thick metal plate material | |
| CN113275664A (en) | Panel processing method | |
| KR101099642B1 (en) | Ship provided with enhanced welding structure of thick steel plate and welding method thereof | |
| CN204507169U (en) | Dull and stereotyped depth measurement injector head | |
| CN102029458B (en) | Butt welding technique of steel crossbar for high-strength ship body structure | |
| CN204527521U (en) | A kind of friction stir welding Aluminium ships base plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |
|
| RJ01 | Rejection of invention patent application after publication |