CN110280951B - Welding method for ship special equipment base - Google Patents
Welding method for ship special equipment base Download PDFInfo
- Publication number
- CN110280951B CN110280951B CN201910601971.4A CN201910601971A CN110280951B CN 110280951 B CN110280951 B CN 110280951B CN 201910601971 A CN201910601971 A CN 201910601971A CN 110280951 B CN110280951 B CN 110280951B
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- China
- Prior art keywords
- special equipment
- equipment base
- ship
- welding
- panel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Abstract
The invention relates to a welding method of a special ship equipment base, which comprises the following steps: step 1, placing a special equipment base reversible deformation tool above a special equipment base, and clamping the special equipment base and the special equipment base by using a clamp; step 2, inserting a wedge block or installing a jack between the special equipment base and the ship body; step 3, placing a level gauge at the upper end of the special equipment base reversible deformation tool, and adjusting the levelness of the special equipment base by using a wedge block or a jack; step 4, fixing the special equipment base and the ship body in a spot welding mode; step 5, taking down the wedge-shaped block or the jack; step 6, connecting the special equipment base with the ship body through full welding; and 7, removing the special equipment base reversible deformation tool after the full welding is finished for 3-5 days. By the welding method, deformation generated during welding is controlled, the positioning process of the special equipment base is simplified, the construction difficulty of personnel is reduced, safety and high efficiency are realized, and the cost investment is low.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a welding method of a special ship equipment base.
Background
Large ships, such as large and medium container ships, LNG ships, LPG ships, chemical ships, ro-ro ships, floating storage ships, finished tankers, crude tankers, bulk cargo ships, passenger ships, special working ships, warships, auxiliary ships and the like, are all provided with equipment with certain horizontal precision requirements on the ships, so that the base of the large ships also requires certain horizontal precision, the horizontal precision of the base is generally not more than 10 minutes, the base is called as a special equipment base, and the flatness of the plane on the base is generally not more than 0.5 mm.
In the construction process, the special equipment base is generally fixed with the ship body in a welding mode, the whole size of the special equipment base is large, the horizontal precision of the special equipment base and the flatness of the upper plane of the special equipment base can be affected during welding, deformation is caused, in addition, the deformation caused by welding is difficult to control under the normal condition, the deformation rule with unified rules does not exist, welding personnel are generally required to control the deformation in a symmetrical welding mode, the effect is not ideal, the welding result directly affects the construction precision, and hidden dangers are buried for the installation and the function realization of the special equipment.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the welding method of the special equipment base of the ship, which can control the deformation generated during welding, simplify the positioning process of the special equipment base, reduce the construction difficulty of constructors, and has the advantages of safety, high efficiency and low cost investment. The technical purpose of the invention is realized by the following technical scheme:
a welding method for a special equipment base of a ship comprises the following steps:
step 4, fixing the special equipment base and the ship body in a spot welding mode;
step 5, taking down the wedge-shaped block or the jack;
and 7, removing the special equipment base reversible deformation tool after 3-5 days of full welding, and cooling for 3-5 days after welding to ensure that the stress is released, thereby completing levelness adjustment and welding work of the special equipment base.
Furthermore, the special equipment base reversible deformation tool comprises an upper panel, a lower panel, a drum plate and a toggle plate, wherein the upper panel is fixed at the upper end of the drum plate, and the lower panel is arranged at the lower end of the drum plate; the toggle plates are uniformly distributed between the upper panel and the lower panel, the upper ends of the toggle plates are connected with the lower end of the upper panel, the lower ends of the toggle plates are connected with the upper end of the lower panel, and the toggle plates and the drum plates are fixed in a cross manner; the connection of upper panel, lower panel, reel board and bracket all adopts the welding mode to go on, and the welding is accomplished the back, and the cooling can only be used after at least a week, ensures that the stress that the welding produced obtains fully releasing.
Furthermore, the inner side wall of the drum plate is also provided with lifting rings which are uniformly distributed on the inner side wall of the drum plate, and the lifting rings are arranged on the inner side wall of the drum plate without influencing the welding and other work due to the fact that a special equipment base anti-deformation tool is generally heavier and is not only convenient to lift with the help of a lifting tool.
Further, the surface roughness of the upper end of the upper panel and the surface roughness of the lower end of the lower panel do not exceed 6.3 μm, and the parallelism of the upper end of the upper panel and the lower end of the lower panel does not exceed 0.15 mm.
Furthermore, the material of the special equipment base reversible deformation tool is at least B-grade steel, the material with the same strength as or higher than the B-grade steel can also be adopted, and the thicknesses of the upper panel and the lower panel are not lower than 25 mm.
Furthermore, the shape and the size of the lower panel are the same as those of the upper end of the special equipment base, and the shape and the size of the special equipment base reversible deformation tool depend on the shape and the size of the upper end of the special equipment base, so that the special equipment base reversible deformation tool can be tightly attached to the upper end of the special equipment base, and deformation of the special equipment base during welding is prevented.
The invention has the beneficial effects that:
1. the deformation generated in the base welding process is limited by using the special equipment base anti-deformation tool, and the special equipment base anti-deformation tool is disassembled after being welded and cooled for 3-5 days to control the stress release.
2. The horizontal posture of the measuring tool is adjusted through the wedge-shaped block or the jack, so that the posture of the base is adjusted, and the mounting precision of the base is guaranteed.
3. The dismounting is convenient, the use is safe, the cost is low, and the popularization and the use are convenient.
4. The operation of personnel is convenient, the labor cost is saved, and the efficiency can be improved by more than 50%.
Drawings
Fig. 1 is a schematic structural diagram of a special equipment base reversible deformation tool of the invention.
FIG. 2 is a schematic view of the welding of the special equipment base of the ship of the present invention.
In the figure, 1, an upper panel; 2. a lower panel; 3. a reel plate; 4. a toggle plate; 5. a hoisting ring; 6. a clamp; 7. a special equipment base; 8. a ship body.
Detailed Description
The method of the invention is further described below by taking a special equipment base with a circular upper end as an example:
a welding method for a special equipment base of a ship comprises the following steps:
step 4, fixing the special equipment base and the ship body in a spot welding mode;
step 5, taking down the wedge block;
and 7, removing the special equipment base reversible deformation tool after 3-5 days of full welding, and cooling for 3-5 days after welding to ensure that the stress is released, thereby completing levelness adjustment and welding work of the special equipment base.
The present invention is further explained and not limited by the embodiments, and those skilled in the art can make various modifications as necessary after reading the present specification, but all the embodiments are protected by the patent law within the scope of the claims.
Claims (5)
1. A welding method for a special equipment base of a ship is characterized by comprising the following steps:
step 1, placing a special equipment base anti-deformation tool above a special equipment base, and clamping the special equipment base and the special equipment base anti-deformation tool by using a clamp; the special equipment base reversible deformation tool comprises an upper panel, a lower panel, a drum plate and a toggle plate, wherein the upper panel is fixed at the upper end of the drum plate, and the lower panel is arranged at the lower end of the drum plate; the toggle plates are uniformly distributed between the upper panel and the lower panel, the upper ends of the toggle plates are connected with the lower end of the upper panel, the lower ends of the toggle plates are connected with the upper end of the lower panel, and the toggle plates and the drum plates are fixed in a cross manner;
step 2, inserting a wedge block or installing a jack between the special equipment base and the ship body;
step 3, placing a level gauge at the upper end of the special equipment base reversible deformation tool, and adjusting the levelness of the special equipment base by using a wedge block or a jack;
step 4, fixing the special equipment base and the ship body in a spot welding mode;
step 5, taking down the wedge-shaped block or the jack;
step 6, connecting the special equipment base with the ship body through full welding;
and 7, removing the special equipment base reversible deformation tool after the full welding is finished for 3-5 days.
2. The welding method for the special equipment base of the ship as claimed in claim 1, wherein hanging rings are further arranged on the inner side wall of the drum plate, and the hanging rings are uniformly distributed on the inner side wall of the drum plate.
3. The welding method for the special equipment base of the ship, as claimed in claim 2, wherein the surface roughness of the upper end of the upper panel and the surface roughness of the lower end of the lower panel are both not more than 6.3 μm, and the parallelism of the upper end of the upper panel and the lower end of the lower panel is not more than 0.15 mm.
4. The welding method for the special equipment base of the ship according to claim 1, wherein the special equipment base reversible deformation tool is made of at least B-grade steel or materials with the same strength, and the thickness of the upper panel and the lower panel is not less than 25 mm.
5. The welding method for the special equipment base of the ship as claimed in claim 1, wherein the shape and size of the lower panel are the same as those of the upper end of the special equipment base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910601971.4A CN110280951B (en) | 2019-07-05 | 2019-07-05 | Welding method for ship special equipment base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910601971.4A CN110280951B (en) | 2019-07-05 | 2019-07-05 | Welding method for ship special equipment base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110280951A CN110280951A (en) | 2019-09-27 |
| CN110280951B true CN110280951B (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910601971.4A Active CN110280951B (en) | 2019-07-05 | 2019-07-05 | Welding method for ship special equipment base |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447708A (en) * | 2013-09-22 | 2013-12-18 | 卢长兴 | Method of preventing welding deformation of steel plate base for steel structure having steel plate base |
| CN105108363B (en) * | 2015-08-24 | 2017-06-20 | 北京星航机电装备有限公司 | A kind of large thin-wall missile wing butt welding deformation control method |
| CN105252178B (en) * | 2015-11-17 | 2017-02-08 | 宜昌船舶柴油机有限公司 | Concentricity control method for axial welding of multilayer annular plates |
| KR101864868B1 (en) * | 2016-07-07 | 2018-06-05 | 주식회사 동명이엔지 | Jig apparatus for welding |
| CN206065784U (en) * | 2016-10-19 | 2017-04-05 | 中铁宝桥集团有限公司 | A kind of welding sample welding anti-distortion technological equipment |
| CN207272534U (en) * | 2017-08-10 | 2018-04-27 | 艾蓝腾新材料科技(上海)有限公司 | Automobile post processing POC cylinder assemblies compress positioning anti-deformation auxiliary welding device |
| CN207479932U (en) * | 2017-11-13 | 2018-06-12 | 无锡威孚力达催化净化器有限责任公司 | A kind of tooling for inhibiting flange welding deformation |
| CN109606542B (en) * | 2018-06-15 | 2020-10-30 | 沪东中华造船(集团)有限公司 | Method for controlling positioning and mounting precision of special equipment base on block |
| CN109604894A (en) * | 2018-11-29 | 2019-04-12 | 重庆市江津钢模有限责任公司 | Portable steel plate auxiliary welding equipment |
| CN109746612A (en) * | 2019-03-05 | 2019-05-14 | 中铁四局集团有限公司 | A kind of stainless compound steel plate connects moulding bed device and its welding method without code character welding |
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- 2019-07-05 CN CN201910601971.4A patent/CN110280951B/en active Active
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