CN104057185A - Welding technology for manual argon arc welding of thick plate titanium material - Google Patents
Welding technology for manual argon arc welding of thick plate titanium material Download PDFInfo
- Publication number
- CN104057185A CN104057185A CN201410295297.9A CN201410295297A CN104057185A CN 104057185 A CN104057185 A CN 104057185A CN 201410295297 A CN201410295297 A CN 201410295297A CN 104057185 A CN104057185 A CN 104057185A
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- Prior art keywords
- welding
- groove
- titanium material
- angle
- argon arc
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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
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- 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
-
- 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
- B23K9/235—Preliminary treatment
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
- B23K2101/185—Tailored blanks
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/14—Titanium or alloys thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a welding technology for manual argon arc welding of a thick plate titanium material. The welding technology comprises the following steps: 1) cleaning welding wires, the surface of a groove and two sides of the groove; 2) adopting a double V-shaped groove, setting the angle of the lower section of the groove to be 55-70 degrees, and setting the angle of the upper section of the groove to be 30-35 degrees; 3) determining welding parameters, and welding. The application range of welding technology for manual argon arc welding of the titanium material is enabled to be further enlarged, and is particularly suitable for welding the titanium material of more than or equal to 20mm. The angle of the lower section of the groove is 55-70 degrees, so that a sufficient welding operation space is ensured, the defects of incomplete fusion, incomplete penetration and the like are prevented from being generated, and the welding quality is guaranteed; the angle of the upper section of the groove is 30-35 degrees, so that the metal filling volume is effectively reduced, and the difficulty requirements of improved groove processing technology is greatly reduced compared with U-shaped and double U-shaped grooves.
Description
Technical field
The invention belongs to welding technology field, be specifically related to a kind of slab titanium material manual argon arc welding welding procedure, relate in particular to the welding procedure of the above titanium material of 20mm.
Background technology
Ti equipment thickness of shell common in domestic chemical plant installations is generally in 10mm left and right, and conventional welding parameter can meet welding requirements.But for the titanium material welding of slightly thick specification, the especially welding of sheet material more than 20mm, the technological parameters such as its groove type, welding parameter, gas shield, along with the increase of sheet metal thickness, differ greatly.The problems the such as when welding of slab titanium alloy, conventional groove type and welding parameter exist metal filled amount large, and post welding distortion amount and residual stress are large, and total welding pass many easily mechanical property, the processing performances of butt welded seam cause harmful effect, and welding efficiency is lower.
Traditional slab titanium material bevel for welding form, as Figure 1A " X-shaped ", Figure 1B " U-shaped ", Fig. 1 C " dual U-shaped " groove, wherein " U-shaped ", " dual U-shaped " groove difficulty of processing is large, the process-cycle is long, and groove gap is narrower, welding difficulty is larger; " X-shaped " groove metal filled amount is excessive.
At high temperature can there is to be changed into by the α titanium of fine and close close-packed hexagonal lattice the β titanium of the thick body-centered cubic lattic of crystal in titanium, cause welding point plasticity to decline, and titanium material has, and fusing point is high, thermal capacity is large and poor thermal conductivity etc. is specific, therefore the welding of titanium material should be taked the little weld heat input of trying one's best, weld heat input E computing formula:
(η-power coefficient of efficiency in formula, U-weldingvoltage, I-welding current, V-speed of welding interlayer cleaning), traditional titanium material welding procedure is generally by taking the measure that reduces weldingvoltage (generally choosing 10～12V), electric current (generally choosing 110～150A) to reduce weld heat input, although controlled weld heat input, but corresponding lower, the welding efficiency of speed of welding (being generally 40～50mm/min) significantly reduces, increase welding pass simultaneously and increased the probability that produces defect.
Summary of the invention
The invention provides a kind of slab titanium material manual argon arc welding welding procedure for above-mentioned the deficiencies in the prior art, the scope of application of titanium material manual argon arc welding solder technology is further expanded, be particularly suitable for the welding of the above titanium material of 20mm.
Be achieved through the following technical solutions for reaching above-mentioned technical purpose the present invention:
A kind of slab titanium material manual argon arc welding welding procedure, comprises the following steps:
1) cleaning welding wire, groove face and groove both sides;
2) processing of groove, adopts " two V-arrangement " groove (as Fig. 2), and groove hypomere angle is got 55～70 °, and groove epimere angle is got 30～35 °;
3) determine welding parameter; weld; wherein electric current 160A～200A; voltage 12～16V, welding speed 70～80mm/min; when welding, hocket according to the welding sequence of twice of front welding, twice of reverse side welding, welding gun gas flow 10～15L/min, the front of weld seam, positive surface rear end, the back side and heat affected area part all will adopt argon gas protection simultaneously; shield gas flow rate 20～25L/min, to weld seam and heat affected area temperature be down to≤80 DEG C stop logical argon gas.
Beneficial effect of the present invention:
The present invention further expands the scope of application of titanium material manual argon arc welding solder technology, is particularly suitable for the welding of the above titanium material of 20mm.
The present invention, by improving groove type and welding procedure, has realized the manual argon arc welding welding of slab titanium material.Groove after improvement makes weld metal loading reduce approximately 30% than tradition " X-shaped " groove in keeping easy processing characteristics, broad root weld space, reduce welding operation difficulty, ensured welding quality, improve flaw detection qualification rate one time, realized flaw detection qualification rate of all weld seams of single device through example operation and reached 100%; Welding procedure after improvement, welding speed improves approximately 60% than traditional handicraft, and overall efficiency has improved approximately 1.2 times, and rational welding order has effectively reduced the generation of welding stress.
Groove of the present invention is on the basis of " X-shaped " groove, relatively carry out variable diameter design according to theoretical calculation analysis and graphics software setting-out, groove hypomere angle is got 55～70 °, ensures enough welding operation spaces, prevent incomplete fusion, the defect such as lack of penetration, guarantee welding quality; Groove epimere angle is got 30～35 °, effectively reduces metal filled amount, and groove processing technology difficulty after improving requires " U-shaped ", " dual U-shaped " groove significantly to reduce.
The present invention compares by calculating, takes larger electric current, voltage, selects the measure of the higher welding speed matching to control weld heat input simultaneously, in effectively controlling weld heat input, has significantly improved welding efficiency.Reasonable arrangement welding order, replaces even welding in weld seam both sides, reduces welding stress.
Brief description of the drawings
The titanium material welding cut form that Fig. 1 is traditional;
Titanium material welding cut form after Fig. 2 improves;
Fig. 3 welding sequential schematic;
Fig. 4 is the groove type of embodiment 1.
Detailed description of the invention
A kind of 28mm titanium material welding procedure.Design groove type as shown in Figure 4, adopts " two V-arrangement " groove after improving, 60 ° of hypomere bevel angles, thickness 3～6mm; 30 ° of epimere bevel angles, thickness 7.5～10.5mm, group is to gap 3 ± 1mm.Preparation before weldering:
(1) will within the scope of welding wire, groove face and groove both sides 20mm, clear up, can select alloy cutter head, stainless steel wire brush, ethanol to clean according to surface contamination degree, in welding process, forbid to use stainless steel wire to take turns butt welded seam again and clear up.
(2) before welding, application ethanol and silk cloth clean groove and welding wire, and not handy hand directly touches later, and welding in time, weldering should not cleaned again for a long time, the welding wire cleaning up must not arbitrarily be thrown on the ground, in case again pollute, should be placed in clean welding wire cylinder and use.
The technological parameter of welding is as table 1, and welding order is as Fig. 3, Control Welding Process:
(1) front of weld seam, positive surface rear end, the back side and heat affected area part all will adopt liquid argon protection simultaneously.
(2) while welding, must adopt run-on tab and arc-extinguishing plate, prevent that holder cover protection effect is bad.
(3) argon gas will be tested welding before using on titanium plate, weld seam holds existing pure white and zero defect proves that purity of argon meets the requirements, if there is other color or occur defect in weld seam, illustrate that purity of argon is not inconsistent requirement, should change and test welding again.
(4) argon gas carrier pipe, adopts the snorkel that is difficult for hygroscopic material.
(5) strictly control interlayer temperature≤80 DEG C, in welding process, must measure interlayer temperature, record.
(6) inspector must, according to standard shown in table 2, confirm the welding quality of every one deck.If welding quality is not inconsistent requirement, Quality Inspector must supervise welder to process by processing method corresponding shown in table 2.
(7) welding wire must be placed in welding wire cylinder.
(8) must carry out welding in strict accordance with the welding sequence of technological requirement when welding.
Welding personnel requires:
(1) welding personnel and protected personnel enter the clean white work clothes of on-the-spot necessary dress, wear white canvas gloves and shoe cover.Welding process requirement and interlayer cleaning.
Table 1
Table 2
Although above-mentioned, the specific embodiment of the present invention is described; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendments that creative work can make or distortion still in protection scope of the present invention.
Claims (4)
1. a slab titanium material manual argon arc welding welding procedure, is characterized in that, comprises the following steps:
(1) cleaning welding wire, groove face and groove both sides;
(2) adopt " two V-arrangement " groove, groove hypomere angle is got 55～70 °, and groove epimere angle is got 30～35 °;
(3) determine welding parameter; weld; wherein electric current 160A～200A; voltage 12～16V, welding speed 70～80mm/min; when welding, hocket according to the welding sequence of twice of front welding, twice of reverse side welding, welding gun gas flow 10～15L/min, the front of weld seam, positive surface rear end, the back side and heat affected area part all will adopt argon gas protection simultaneously; shield gas flow rate 20～25L/min, to weld seam and heat affected area temperature be down to≤80 DEG C stop logical argon gas.
2. welding procedure as claimed in claim 1, is characterized in that, described step 1) cleaning groove both sides 20mm scope.
3. welding procedure as claimed in claim 1, is characterized in that, adopts run-on tab and arc-extinguishing plate when described welding.
4. welding procedure as claimed in claim 1, is characterized in that, described weld interpass temperature≤80 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410295297.9A CN104057185A (en) | 2014-06-26 | 2014-06-26 | Welding technology for manual argon arc welding of thick plate titanium material |
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| CN201410295297.9A CN104057185A (en) | 2014-06-26 | 2014-06-26 | Welding technology for manual argon arc welding of thick plate titanium material |
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| CN104057185A true CN104057185A (en) | 2014-09-24 |
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| CN201410295297.9A Pending CN104057185A (en) | 2014-06-26 | 2014-06-26 | Welding technology for manual argon arc welding of thick plate titanium material |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551357A (en) * | 2014-12-19 | 2015-04-29 | 中国核工业二三建设有限公司 | Welding method for welding steel containment vessel of passive nuclear power plant |
| CN104625459A (en) * | 2014-12-19 | 2015-05-20 | 中国核工业二三建设有限公司 | Welding groove of passive nuclear power plant steel containment |
| CN104874929A (en) * | 2015-06-12 | 2015-09-02 | 南京宝色股份公司 | Welding technique of industrial pure-Ti sheets with thickness of 11-30 mm |
| CN107931793A (en) * | 2017-11-01 | 2018-04-20 | 中国兵器科学研究院宁波分院 | A kind of titanium alloy welding back of the body protective device and welding method |
| CN111069739A (en) * | 2019-12-31 | 2020-04-28 | 西安西工大超晶科技发展有限责任公司 | Manual argon arc welding test method for low-cost titanium alloy material |
| CN111283308A (en) * | 2020-03-09 | 2020-06-16 | 武汉一冶钢结构有限责任公司 | All-position shielded metal arc welding process for ultralow-temperature 304LN austenitic stainless steel medium plate |
| CN112276387A (en) * | 2020-09-03 | 2021-01-29 | 海洋石油工程（青岛）有限公司 | Double-side welding process method for dual-phase steel explosion-proof wall |
| CN115055794A (en) * | 2022-07-20 | 2022-09-16 | 中国船舶重工集团公司第七二五研究所 | Welding method and welding joint for large-thickness composite steel plate for ship |
| CN115255706A (en) * | 2022-07-29 | 2022-11-01 | 宁波东方电缆股份有限公司 | Method for welding copper conductor and aluminum conductor for flexible joint of high-voltage submarine power cable |
| CN115319235A (en) * | 2022-05-24 | 2022-11-11 | 钢铁研究总院有限公司 | Welding method of aluminum alloy medium plate |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551357A (en) * | 2014-12-19 | 2015-04-29 | 中国核工业二三建设有限公司 | Welding method for welding steel containment vessel of passive nuclear power plant |
| CN104625459A (en) * | 2014-12-19 | 2015-05-20 | 中国核工业二三建设有限公司 | Welding groove of passive nuclear power plant steel containment |
| CN104874929A (en) * | 2015-06-12 | 2015-09-02 | 南京宝色股份公司 | Welding technique of industrial pure-Ti sheets with thickness of 11-30 mm |
| CN104874929B (en) * | 2015-06-12 | 2017-01-11 | 南京宝色股份公司 | Welding technique of industrial pure-Ti sheets with thickness of 11-30 mm |
| CN107931793A (en) * | 2017-11-01 | 2018-04-20 | 中国兵器科学研究院宁波分院 | A kind of titanium alloy welding back of the body protective device and welding method |
| CN111069739A (en) * | 2019-12-31 | 2020-04-28 | 西安西工大超晶科技发展有限责任公司 | Manual argon arc welding test method for low-cost titanium alloy material |
| CN111283308A (en) * | 2020-03-09 | 2020-06-16 | 武汉一冶钢结构有限责任公司 | All-position shielded metal arc welding process for ultralow-temperature 304LN austenitic stainless steel medium plate |
| CN111283308B (en) * | 2020-03-09 | 2021-09-14 | 武汉一冶钢结构有限责任公司 | All-position shielded metal arc welding process for ultralow-temperature 304LN austenitic stainless steel medium plate |
| CN112276387A (en) * | 2020-09-03 | 2021-01-29 | 海洋石油工程（青岛）有限公司 | Double-side welding process method for dual-phase steel explosion-proof wall |
| CN115319235A (en) * | 2022-05-24 | 2022-11-11 | 钢铁研究总院有限公司 | Welding method of aluminum alloy medium plate |
| CN115319235B (en) * | 2022-05-24 | 2024-05-24 | 钢铁研究总院有限公司 | Welding method of aluminum alloy medium plate |
| CN115055794A (en) * | 2022-07-20 | 2022-09-16 | 中国船舶重工集团公司第七二五研究所 | Welding method and welding joint for large-thickness composite steel plate for ship |
| CN115055794B (en) * | 2022-07-20 | 2024-01-19 | 中国船舶重工集团公司第七二五研究所 | Welding method and welding joint of marine large-thickness composite steel plate |
| CN115255706A (en) * | 2022-07-29 | 2022-11-01 | 宁波东方电缆股份有限公司 | Method for welding copper conductor and aluminum conductor for flexible joint of high-voltage submarine power cable |
| CN115255706B (en) * | 2022-07-29 | 2023-10-27 | 宁波东方电缆股份有限公司 | Welding method of copper conductor and aluminum conductor for high-voltage submarine power cable flexible joint |
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