CN103495792B - A kind of bar splicing soldering method - Google Patents
A kind of bar splicing soldering method Download PDFInfo
- Publication number
- CN103495792B CN103495792B CN201310426789.2A CN201310426789A CN103495792B CN 103495792 B CN103495792 B CN 103495792B CN 201310426789 A CN201310426789 A CN 201310426789A CN 103495792 B CN103495792 B CN 103495792B
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- China
- Prior art keywords
- welding
- bar splicing
- bar
- weld seam
- speed
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005476 soldering Methods 0.000 title claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 112
- 239000003814 drug Substances 0.000 claims abstract description 9
- 238000010891 electric arc Methods 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 20
- 230000007306 turnover Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 5
- 239000003818 cinder Substances 0.000 abstract description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/0216—Seam profiling, e.g. weaving, multilayer
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of employing medicine core CO
2the bar splicing soldering method of gas protecting welding wire, is characterized in that: welding equipment contravariant CO
2does gas shield welding machine, adopt ER501T-1? CO
2medicine core welding wire for gas shielded welding, reinforcing bar is the HRB335 ribbed reinforced bar of Φ 20mm-30mm; Welding method is as follows: 1) by bar splicing and spot welding; 2) carry out the welding of root layer to bar splicing weld seam: electric arc linearly moves, welding parameter: welding current is 260A, weldingvoltage is 23V, speed of welding 35-40cm/min; 3) on described root layer weld seam, the welding of capping layer is carried out: electric arc indention moves, and welding parameter: welding current is 260A, weldingvoltage is 23V, speed of welding 25-35cm/min.The present invention can improve speed of welding, increase weld seam resistant to rust ability, prevents gas hole defect, scarfing cinder process that in welding process, it goes without doing.<sub />
Description
Technical field
The present invention relates to a kind of bar splicing soldering method.
Background technology
In prior art, bar splicing weldering is main uses welding rod arc welding method, and this welding method exists the drawback that welding quality is unstable and production efficiency is low.
Adopt solid core welding wire CO
2semi-automatic gas shielded arc welding belongs to low hydrogen type welding method, requires that rebar surface cleans, without dirt before welding.Because in practice of construction process, surface exists the dirts such as corrosion during reinforcement welding, therefore inevitably there is the defect such as pore, slag inclusion after reinforcement welding, affect welding quality.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of bar splicing soldering method, has in defect, welding processes such as avoiding weld blowhole slag inclusion without the need to scarfing cinder and the feature improving welding quality.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of employing medicine core CO
2the bar splicing soldering method of gas protecting welding wire, is characterized in that: welding equipment contravariant CO
2gas shield welding machine, adopts ER501T-1CO
2medicine core welding wire for gas shielded welding, reinforcing bar is the HRB335 ribbed reinforced bar of Φ 20mm-30mm;
Welding method is as follows:
1) by bar splicing and spot welding;
2) carry out the welding of root layer to bar splicing weld seam: electric arc linearly moves, welding parameter: welding current is 260A, weldingvoltage is 23V, speed of welding 35-40cm/min;
3) on described root layer weld seam, the welding of capping layer is carried out: electric arc indention moves, and welding parameter: welding current is 260A, weldingvoltage is 23V, speed of welding 25-35cm/min.
To the further improvement that the present invention does be: described bar splicing refers to be made inclination flanging respectively by the end of two reinforcing bars and overlaps.
Welding operates in the following order:
Step one: spot welding on a long limit of bar splicing place;
Step 2: turn-over, the welding of root layer is carried out on another long limit of bar splicing place;
Step 3: turn-over again, the welding of root layer is carried out on a long limit of bar splicing place of spot welding;
Step 4: carry out the welding of ring cover surface layer around bar splicing place.
The beneficial effect adopting technique scheme to produce is:
One, select flux-cored wire CO
2semi-automatic gas shielded arc welding welding method carries out reinforcement welding, solves solid core welding wire CO
2the problem of the easy defects of vent hole of semi-automatic gas shielded arc welding welded reinforcement, Site Welding weld seam first-time qualification rate can improve 1 times, and speed of welding improves nearly 2 times.
Two, the lime-titania type slag produced after utilizing the medicinal powder fusing in flux-cored wire, prevents weld blowhole defect, improves weld seam resistant to rust ability.
Three, the root layer of weld seam and cap rock without the need to scarfing cinder, reduce manpower man-hour, improve efficiency in welding process.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of step one;
Fig. 2 is the schematic diagram of step 2;
Fig. 3 is the schematic diagram of step 3;
Fig. 4 is the schematic diagram of step 4.
As shown in the figure: a long limit of 1 bar splicing place, the position of 2 spot welding, another long limit of 3 bar splicings place, 4 electric arcs linearly move, the welding of ring cover surface layer is carried out in 5 electric arc indentions motions, 6 around bar splicing place arc motion direction.
Detailed description of the invention
Contrast Fig. 1-4 uses step to be described further to operation of the present invention:
A kind of employing medicine core CO
2the bar splicing soldering method of gas protecting welding wire, is characterized in that: welding equipment contravariant CO
2gas shield welding machine, adopts ER501T-1CO
2medicine core welding wire for gas shielded welding, reinforcing bar is the HRB335 ribbed reinforced bar of Φ 20mm-30mm;
Welding method is as follows:
1) by bar splicing and spot welding;
2) carry out the welding of root layer to bar splicing weld seam: electric arc linearly moves 4, welding parameter: welding current is 260A, weldingvoltage is 23V, speed of welding 35-40cm/min;
3) on described root layer weld seam, the welding of capping layer is carried out: electric arc indention motion 5, welding parameter: welding current is 260A, weldingvoltage is 23V, speed of welding 25-35cm/min.
Described bar splicing refers to be made inclination flanging respectively by the end of two reinforcing bars and overlaps.
Welding operates in the following order:
Step one: (see figure 1) spot welding on a long limit 1 of bar splicing place;
Step 2: (see figure 2) turn-over, the welding of root layer is carried out on another long limit 3 of bar splicing place;
Step 3: (see figure 3) is turn-over again, on a long limit of bar splicing place of spot welding, 1 carries out the welding of root layer;
Step 4: (see figure 4) carries out the welding of ring cover surface layer around bar splicing place.
NB-350 type contravariant CO selected by the welding equipment of the present embodiment
2gas shield welding machine; Welding wire selects the ER501T-1CO of diameter 1.2mm
2medicine core welding wire for gas shielded welding.Tension test weldment selects diameter to be respectively the HRB335 ribbed reinforced bar of Φ 20mm, Φ 25mm and Φ 30mm, specimen length 350mm.Due to welding current and arc voltage larger, the welding of root layer is with after speed completes faster, the a small amount of slag existed fully can melt emersion at follow-up capping layer when comparatively jogging speed is welded, and is therefore not used as scarfing cinder process between the welding of root layer with capping layer welding two procedures.
Bar splicing weldering test specimen tension test performance indications
.
Claims (1)
1. one kind adopts medicine core CO
2the bar splicing soldering method of gas protecting welding wire, is characterized in that: welding equipment contravariant CO
2gas shield welding machine, adopts ER501T-1CO
2medicine core welding wire for gas shielded welding, reinforcing bar is the HRB335 ribbed reinforced bar of Φ 20mm-30mm;
Welding method is as follows:
1) by bar splicing and spot welding;
2) carry out the welding of root layer to bar splicing weld seam: electric arc linearly moves (4), welding parameter: welding current is 260A, weldingvoltage is 23V, speed of welding 35-40cm/min;
3) on described root layer weld seam, carry out the welding of capping layer: electric arc indention motion (5), welding parameter: welding current is 260A, weldingvoltage is 23V, speed of welding 25-35cm/min;
Described bar splicing refers to be made inclination flanging respectively by the end of two reinforcing bars and overlaps;
Welding operates in the following order:
Step one: in the upper spot welding of a long limit (1) of bar splicing place;
Step 2: turn-over, the welding of root layer is carried out on another long limit (3) of bar splicing place;
Step 3: turn-over again, a long limit (1) of bar splicing place of spot welding carries out the welding of root layer;
Step 4: carry out the welding of ring cover surface layer around bar splicing place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426789.2A CN103495792B (en) | 2013-09-18 | 2013-09-18 | A kind of bar splicing soldering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426789.2A CN103495792B (en) | 2013-09-18 | 2013-09-18 | A kind of bar splicing soldering method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103495792A CN103495792A (en) | 2014-01-08 |
| CN103495792B true CN103495792B (en) | 2016-02-24 |
Family
ID=49861101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310426789.2A Active CN103495792B (en) | 2013-09-18 | 2013-09-18 | A kind of bar splicing soldering method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103495792B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117762A (en) * | 2014-08-16 | 2014-10-29 | 国家电网公司 | Rebar groove welding method |
| CN105382384B (en) * | 2015-12-18 | 2017-11-21 | 国家电网公司 | A kind of reinforcing bar melts ledge bar welding method |
| CN109877422A (en) * | 2019-04-19 | 2019-06-14 | 铁三院(天津)工程有限公司 | A kind of automatic welding device and welding method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2501624Y (en) * | 2001-09-01 | 2002-07-24 | 中国地质大学(武汉)高科技产业集团海电接头研究所 | Steel pad die for electric arc melding of rainforced steel |
| CN102114563A (en) * | 2009-12-30 | 2011-07-06 | 中建六局第二建筑工程有限公司 | Method for connecting cylindrical horizontal annular major-diameter reinforcing steel bar by using fuse channel rod welding |
| CN102941398A (en) * | 2012-10-31 | 2013-02-27 | 国家电网公司 | Welding method of steel reinforcement strip welding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0999394A (en) * | 1995-10-04 | 1997-04-15 | Yoshinori Suzuki | Manufacture of iron-reinforcing welded joint |
-
2013
- 2013-09-18 CN CN201310426789.2A patent/CN103495792B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2501624Y (en) * | 2001-09-01 | 2002-07-24 | 中国地质大学(武汉)高科技产业集团海电接头研究所 | Steel pad die for electric arc melding of rainforced steel |
| CN102114563A (en) * | 2009-12-30 | 2011-07-06 | 中建六局第二建筑工程有限公司 | Method for connecting cylindrical horizontal annular major-diameter reinforcing steel bar by using fuse channel rod welding |
| CN102941398A (en) * | 2012-10-31 | 2013-02-27 | 国家电网公司 | Welding method of steel reinforcement strip welding |
Non-Patent Citations (1)
| Title |
|---|
| 熔化极气体保护焊技术在钢筋焊接工程中的应用;李本瑞等;《焊接技术》;20011231;第30卷(第S2期);第63-64页 * |
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| Publication number | Publication date |
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| CN103495792A (en) | 2014-01-08 |
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