CN107498145B - A kind of welding method of heap " submerged-arc welding deposited metal test " transition zone - Google Patents
A kind of welding method of heap " submerged-arc welding deposited metal test " transition zone Download PDFInfo
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- CN107498145B CN107498145B CN201710623491.9A CN201710623491A CN107498145B CN 107498145 B CN107498145 B CN 107498145B CN 201710623491 A CN201710623491 A CN 201710623491A CN 107498145 B CN107498145 B CN 107498145B
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- welding
- heap
- deposited metal
- test
- transition zone
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Classifications
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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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
Abstract
The present invention provides a kind of welding method of heap " submerged-arc welding deposited metal test " transition zone, chooses suitable welding parameter according to selected flux basicity, by ceramic substrate, directly accumulates transition zone in test plate (panel) side.The present invention can be effectively reduced deposited metal test labor cost, working time and machining cost；Compared with the method for traditional deposited metal test heap transition zone, wlding consumption of the invention is significantly reduced.
Description
Technical field
The invention belongs to welding technology field, in particular to a kind of welding of heap " submerged-arc welding deposited metal test " transition zone
Method.
Background technique
Every kind of welding wire will pass through deposited metal test before entering factory with downstream user after welding wire production producer completes
Detect its mechanical property, and low-alloy welding wire for submerged-arc welding in welding wire usage ratio close to half, it is external thus to be directed to low-alloy
The deposited metal test tailor of welding wire for submerged-arc welding standard AWS A5.23/A5.23M, and domestic also formulated corresponding mark
Quasi- GB/T12470-2003.
In order to avoid base material alloy penetrates into the influence generated to the performance for judging welding wire, before deposited metal test development first
Matched base material is selected, however low-alloy welding wire for submerged-arc welding is many kinds of, many welding wire production producers might not have mating mother
Material, standard regulation: angle of bevel is 15 °, when as unsuitable such as base material chemical component and deposited metal composition, using quilt
The welding wire of inspection-solder flux combination or other welding materials with same type, in groove face and backing plate surface build-up welding separation layer, isolation
It is not less than 3mm after the processing of thickness degree.Conventional method is first by base material bevel, and welded gaps are there are sufficiently large, according to deposition gold
The welding parameter for belonging to test is welded, and later along weld seam center to incision, and test plate (panel) is milled and is put down, then opened in weld seam side
15 ° of grooves carry out deposited metal test, see Fig. 1.But the method for this deposited metal test heap transition zone tries deposited metal
It is double to test workload, and wlding consumption and machining cost all will be double.
Flux basicity used in submerged-arc welding has larger impact to weld bead shape, and molten bath mobility subtracts as flux basicity increases
Small, in the certain situation of welding parameter, weld pool width reduces as flux basicity increases.
Summary of the invention
For deficiency existing for existing deposited metal test heap transition zone, it is intended to and proposes a kind of deposition easy to operate
Metallographictest heap transition layer method.The present invention chooses suitable welding parameter by a large amount of engineer testings, according to selected flux basicity,
By ceramic substrate, transition zone directly is accumulated in test plate (panel) side.
For achieving the above object, present invention employs following technical solutions:
A kind of welding method of heap " submerged-arc welding deposited metal test " transition zone, comprising the following steps:
(1) test piece for welding side to be holded up upwards, two sides are fixed with thick bloom, test plate (panel) two sides adhesion ceramic substrate, and
Solder flux is piled on test plate (panel)；
(2) flux basicity B, speed of welding v (m/h), electric current I (A), voltage U (V) meet 0.0005UI- as B < 1.0
0.3v -3B=0；As B >=1.0, meet 0.0004UI-0.09v-B=0, makes 20 ± 0.3mm of weld pool width plate thickness；
(3) on test plate (panel) heap apply 4 layers of deposited metal after, two facing cut of test plate (panel) is put down, 15 ° of grooves are opened on heap coating, make every
It is not less than 3mm after the processing of absciss layer thickness, and along its length to being cut into two pieces of welding plates.
By using above-mentioned technical proposal, compared with prior art, can reach it is following the utility model has the advantages that
The present invention can be effectively reduced deposited metal test labor cost, working time and machining cost；Compared with biography
The method of the deposited metal test heap transition zone of system, wlding consumption of the invention significantly reduce.
Detailed description of the invention
Fig. 1 is traditional heap cladding layer method schematic diagram.
Fig. 2 is heap cladding layer method of the present invention, and 1 indicates test piece for welding, and 2 indicate ceramic substrate.
Specific embodiment
Technical solution of the present invention is described further with reference to the accompanying drawings and embodiments:
Embodiment one: traditional heap cladding layer method
With deposited metal test evaluation welding wire for submerged-arc welding ESAB OK Autrod13.40 performance, gage of wire 4.0mm,
Base material is first opened 15 ° of slopes having a size of 150mm*200mm*20mm, trade mark Q345 by mating flux basicity B=3.2, test piece for welding
Mouthful, in order to guarantee weld seam to coating > 3mm after cutting, welding assembled gap is 10mm, according to the welding parameter of deposited metal test
It is welded, electric current I=490A, voltage U=27V, speed of welding v=25m/h, is filled up after weld seam Dui Fu 14, just along weld seam
Test plate (panel) is milled and is put down to incision by center, is then opened 15 ° of grooves in weld seam side, deposited metal test is carried out, because of interlayer to be controlled
Temperature takes around 0.3 hour so the heap for completing per pass cladding layer applies, and the entire deposited process of layer heap of plating needs 6.2 hours, work
Skill process is shown in Fig. 1.
Embodiment two: new process
With the performance of deposited metal test evaluation welding wire for submerged-arc welding ESAB OK Autrod13.40, mating flux basicity B=
3.2, test piece for welding holds up test piece for welding side having a size of 150mm*400mm*20mm, trade mark Q345 upwards, and two sides are thick
Bloom is fixed, and adhesion ceramic substrate in test plate (panel) two sides piles with solder flux on test plate (panel), sees Fig. 2, because of flux basicity B=3.2 >=1.0
When, so welding parameter need to meet 0.0004UI-0.09v-B=0, and in order to verify the reasonability of formula, this heap cladding layer choosing
With four group welding parameters, it is shown in Table 1, wherein preceding two groups of parameters meet formula requirement, postwelding molten wide is about 20mm, rear two groups of parameters
It is unsatisfactory for formula requirement, wherein third group parameter postwelding insufficient width 20mm, the 4th group of molten wide is excessive, occurs dropping down under molten bath existing
As latter two groups can be carried out subsequent deposited metal test not.Preceding two groups of each heaps apply four layers, and the time is needed to respectively may be about 1.2
Hour, postwelding milling is flat and along its length to two pieces of welding plates are cut into, and needs 0.5h, and entire plating layer heap applies process and needs 2.2 hours.
The relationship of table 1 heap cladding layer parameter and molten wide
Table 2 is two kinds of technological effect comparisons, as can be seen from Table 2, the new process time shortens 4 hours compared with traditional handicraft,
Wlding demand is about the one third of traditional handicraft, it is seen that manpower can be saved significantly by carrying out heap cladding layer using new process
Material resources.
2 two kinds of welding procedure Contrast on effect of table
A specific embodiment of the invention above described embodiment only expresses, but can not be therefore understands that for the present invention
The limitation of the scope of the patents.Any variation that those skilled in the art is the present invention under the enlightenment of present inventive concept is fallen
Within the scope of the present invention.
Claims (1)
1. a kind of welding method of heap " submerged-arc welding deposited metal test " transition zone, it is characterised in that: this method includes following step
It is rapid:
(1) test piece for welding side is holded up upwards, two sides are fixed with thick bloom, test plate (panel) two sides adhesion ceramic substrate, and in test plate (panel)
On pile with solder flux；
(2) flux basicity B, speed of welding v (m/h), electric current I (A), voltage U (V) meet 0.0005UI- as B < 1.0
0.3v -3B=0；As B >=1.0, meet 0.0004UI-0.09v-B=0, makes weld pool width plate thickness ± 0.3mm, wherein plate
Thickness is 20mm；
(3) after heap applies 4 layers of deposited metal on test plate (panel), two facing cut of test plate (panel) is put down, 15 ° of grooves are opened on heap coating, keep deposition golden
It is not less than 3mm after belonging to thickness processing, and along its length to being cut into two pieces of welding plates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710623491.9A CN107498145B (en) | 2017-07-27 | 2017-07-27 | A kind of welding method of heap " submerged-arc welding deposited metal test " transition zone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710623491.9A CN107498145B (en) | 2017-07-27 | 2017-07-27 | A kind of welding method of heap " submerged-arc welding deposited metal test " transition zone |
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| CN107498145A CN107498145A (en) | 2017-12-22 |
| CN107498145B true CN107498145B (en) | 2019-07-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101314200A (en) * | 2008-05-08 | 2008-12-03 | 宝鸡市宇生焊接材料有限公司 | High-strength high-ductility fluorine alkalescent sintered flux |
| JP5826137B2 (en) * | 2012-09-06 | 2015-12-02 | 株式会社神戸製鋼所 | Tandem submerged arc welding method |
| JP6282191B2 (en) * | 2014-07-18 | 2018-02-21 | 株式会社神戸製鋼所 | First layer submerged arc welding method of high Cr CSEF steel |
| CN104259633A (en) * | 2014-07-22 | 2015-01-07 | 江苏省沙钢钢铁研究院有限公司 | Efficient single-face submerged arc welding method |
| JP6296550B2 (en) * | 2014-08-25 | 2018-03-20 | 株式会社神戸製鋼所 | Ni-base alloy-coated arc welding rod |
| CN105817788A (en) * | 2015-01-06 | 2016-08-03 | 海宁瑞奥金属科技有限公司 | High-efficient submerged welding method for low-temperature steel |
| CN105108275A (en) * | 2015-09-23 | 2015-12-02 | 天津惠蓬海洋工程有限公司 | Welding method for self-elevating drilling platform high pressure line large-caliber all-welded ball valve |
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