CN103862143A - Welding process applied to Inconel 600 - Google Patents
Welding process applied to Inconel 600 Download PDFInfo
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- CN103862143A CN103862143A CN201410114777.0A CN201410114777A CN103862143A CN 103862143 A CN103862143 A CN 103862143A CN 201410114777 A CN201410114777 A CN 201410114777A CN 103862143 A CN103862143 A CN 103862143A
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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
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
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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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
- B23K35/304—Ni as the principal constituent with Cr as the next major constituent
-
- 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
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a welding process applied to Inconel 600, and belongs to the field of the GTAW process. Preheating and heat treatment are not needed by the welding process. By means of the adjustment of technological parameters and the improvement in welding materials, generated weld joints not only have good surface appearances, corrosion resistance and room temperature mechanical properties, but also show up obviously-improved high-temperature mechanical properties, quality of products can be greatly improved, and the service life of the products can be greatly prolonged.
Description
Technical field
The invention belongs to material processing field, be specifically related to a kind of welding procedure of the Inconel600 of being applicable to alloy.
Background technology
Welding is particularly requisite technique in large-sized structural parts application of hardware.Compared with mother metal, there is obvious gap at the aspect such as mechanical property, corrosion resistance in the weld seam that welding produces, easily becomes " short slab " of product total quality and performance conventionally.Therefore, welding procedure is a key factor that affects metal product performance.
Inconel600 is a kind of nickel-base alloy, and it has excellent high-temperature corrosion resistance, anti-oxidant and cold and hot working performance, is widely used in the fields such as titanium dioxide, chemical industry, nuclear power.At present, more existing normal welding technology are used to Inconel600 alloy, and the welding method relating to comprises gas metal-arc welding, non-consumable gas shielded arc welding, automatic welding etc.; the welding material using is take ERNiCr-3 as main, and its chemical composition is: C≤0.1%, Cr 18～22%; Fe≤3.0%, Mn 2.5～3.5%, Nb+Ta 2.0～3.0%; Ti≤0.75%; Si≤0.5%, Cu≤0.5%, S≤0.015%; P≤0.03%, Ni >=67.0%.
But these welding procedures can not have been given play to the excellent properties of Inconel600 completely, exist obvious deficiency, outstanding behaviours is undesirable in the mechanical behavior under high temperature of weld seam.This defect makes stability and the security of Inconel600 alloy product under high temperature applied environment have hidden danger, thereby limited Inconel600 alloy product and at some, mechanical property is had the application under the hot environment of requirement.
In view of Inconel600 in hot environment, seeks the welding procedure better with Inconel600 alloy applicability and just seems particularly necessary in many places in actual applications.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of welding procedure of the Inconel600 of being applicable to alloy.This welding procedure, without preheating and heat treatment, belongs to the category of non-consumable gas shielded arc welding (GTAW) technique.By the improvement of the adjustment to technological parameter and welding material, the weld seam producing not only has good surface topography (there will not be the defects such as crackle, pore, undercut), decay resistance and ambient temperature mechanical properties, and shown the mechanical behavior under high temperature of obvious improvement, greatly promote quality and the service life of product.
To achieve these goals, the invention provides a kind of welding procedure of the Inconel600 of being applicable to alloy, comprise the following steps:
(1) end to be welded of sample to be welded is cleaned out, kept clean dry, then by sample docking to be welded, with spot welding fixed position, logical argon gas is protected subsequently; Welding machine is connected in the mode of straight polarity direct current with sample to be welded;
(2) treat welded specimen and carry out bottoming welding, welding current 90-100A, voltage 12-14V, welds fast 0.8-1.2mm/s, and weldering is full two-layer;
(3) fill weldering and cosmetic welding, welding current 100-120A, voltage 12-16V, welds fast 1.0-1.4mm/s.
Welding procedure of the present invention is applicable to the Inconel600 alloy material of all kinds of patterns, includes but not limited to Inconel600 wire rod, sheet material, tubing etc.
Sample to be welded can be selected suitable docking mode according to weldment structure type.For example, for sheet material, preferably adopt V-type butting grooves; For tubing, preferably adopt U-shaped butting grooves; For as the wire rod of rod and so on, preferably adopt V-type butting grooves or I type butting grooves.
The welding material using in welding procedure of the present invention, by mass percentage, is made up of following chemical composition: C≤0.07%, Cr 16.0～18.0%, Fe 6.0～10.0%, Mn≤1.0%, Nb 1.5～3.0%, Si 0.6～1.0%, S≤0.015%, P≤0.015%, Ni >=70.0%.
Preferably, above-mentioned welding material is made up of following chemical composition: C≤0.05%, Cr 16.0～17.0%, Fe 7.0～8.0 %, Mn≤0.7%, Nb 2.0～2.5%, Si 0.8～1.0%, S≤0.015%, P≤0.015%, Ni >=72.0%.
Welding material can use with the various forms of this area routine, preferably welding wire.According to using needs, welding wire can be made into various sizes.
The present invention also aims to provide the Inconel600 being obtained by said welding method alloy product.
With respect to the existing welding procedure for Inconel600, the present invention is by optimizing the technological parameter in traditional GTAW welding procedure and improving welding material, make the weld seam of welding at aspect excellent performances such as outward appearance, corrosion resistance, ambient temperature mechanical properties and mechanicals behavior under high temperature, particularly aspect mechanical behavior under high temperature, shown clear superiority.
accompanying drawing explanation
Fig. 1 is the structural representation that in embodiment 1, welded specimen adopts V-type butting grooves;
Fig. 2 is the structural representation that in embodiment 2, welded specimen adopts U-shaped butting grooves.
the specific embodiment
So that the present invention will be further described, but should not be understood as limiting the scope of the invention below with reference to embodiment.
embodiment 1
Select Inconel600 rolled plate that two block specifications are 450mm × 75mm × 20mm as welded specimen, adopt V-type butting grooves, slope type is: root face length 1mm, 60 ° of bevel angles.Docking structure as shown in Figure 1.
Above-mentioned welded specimen is welded, and the welding machine model of use is WSM-4000 inversion type pulse argon; The wlding using is the welding wire of diameter for φ 2.4mm, and its composition is: C 0.03%, Cr 16.8%, Fe 7.2%, Mn 0.4%, Nb 2.45%, Si 0.85%, S 0.002%, P 0.002%, Ni surplus.
Welding process comprises the following steps:
(1) by clean the removing surface of the groove to be welded of welded specimen, keep clean dry, then groove is docked according to above-mentioned docking mode, fix position with spot welding, then logical argon gas is protected; Welding machine is connected in the mode of straight polarity direct current with sample to be welded;
(2) welded specimen is carried out to bottoming welding, welding current 95A, voltage 13V, welds fast about 1.0mm/s, and weldering is full two-layer;
(3) fill weldering and cosmetic welding, welding current 110A, voltage 14V, welds fast about 1.2mm/s.
Select two sections of specifications to be φ 120mm(external diameter) × 15mm(wall thickness) × 150mm(length) and Inconel600 pipeline section as welded specimen, adopt U-shaped butting grooves, groove type is root face length 1mm, radius 4mm, 25 ° of bevel angles.Docking structure as shown in Figure 2.
Adopt wlding in the same manner as in Example 1 and equipment to weld above-mentioned welded specimen.
Welding process comprises the following steps:
(1) by clean the removing surface of the groove to be welded of welded specimen, keep clean dry, then groove is docked according to above-mentioned docking mode, fix position with spot welding, then logical argon gas is protected; Welding machine is connected in the mode of straight polarity direct current with sample to be welded;
(2) welded specimen is carried out to bottoming welding, welding current 90A, voltage 12V, welds fast about 0.8mm/s, and weldering is full two-layer;
(3) fill weldering and cosmetic welding, welding current 100A, voltage 13V, welds fast about 1.0mm/s.
embodiment 3(contrast)
Adopt welded specimen, docking mode and equipment in the same manner as in Example 1, the ERNiCr-3 welding wire take diameter as φ 2.4mm welds it as wlding.
Welding process comprises the following steps:
(1) by clean the removing surface of the groove to be welded of welded specimen, keep clean dry, then groove is docked according to above-mentioned docking mode, fix position with spot welding, then logical argon gas is protected; Welding machine is connected in the mode of straight polarity direct current with sample to be welded;
(2) treat welded specimen and carry out bottoming welding, welding current 110A, voltage 15V, welds fast about 1.1mm/s, and weldering is full two-layer;
(3) fill weldering and cosmetic welding, welding current 130A, voltage 20V, welds fast about 1.4mm/s.
embodiment 4(contrast)
Adopt welded specimen, docking mode and equipment in the same manner as in Example 2, the ERNiCr-3 welding wire take diameter as φ 2.4mm welds it as wlding.
Welding process comprises the following steps:
(1) by clean the removing surface of the groove to be welded of welded specimen, keep clean dry, then groove is docked according to above-mentioned docking mode, fix position with spot welding, then logical argon gas is protected; Welding machine is connected in the mode of straight polarity direct current with sample to be welded;
(2) treat welded specimen and carry out bottoming welding, welding current 80A, voltage 10V, welds fast about 0.8mm/s, and weldering is full two-layer;
(3) fill weldering and cosmetic welding, welding current 90A, voltage 13V, welds fast about 1.2mm/s.
performance test
1,, according to JB/T4730.5-2005, detection (PT) is permeated on butt welded seam surface
Result shows: the face of weld of embodiment 1-4 is not all found the defects such as crackle, pore, undercut, meets the requirement of JB/T4730.5-2005 I level.
2,, according to JB/T4730.2-2005, butt welded seam carries out ray detection (RT)
Result shows: the weld seam of embodiment 1-4 is not found any defect, meets the requirement of JB/T4730.2-2005 I level.
3,, according to GB/T228-2010, sample sampling is carried out to the test of normal temperature (25 ℃) tensile property
Test result is as shown in table 1.
Table 1 room temperature tensile test result
Above-mentioned test result shows, the sample of embodiment 1-4 all meets ASTM UNS NO6600 requirement, and the ambient temperature mechanical properties showing is roughly suitable.
4,, according to GB/T232-2010, sample is sampled and carries out side bend test test
Result shows: all do not find crackle, meet GB/T232-2010 requirement.
5,, according to GB/T4338-2006 " Metal Materials At High Temperature stretching test method ", to sample sampling, carry out high temperature, short time Mechanics Performance Testing at 500 ℃ and 700 ℃ respectively
Concrete test process is as follows: according to standard-required processed sample, then with fixture block, sample is fixed on WDE-300B high temperature universal testing machine, subsequently temperature is elevated to test temperature; Keep temperature, slowly increase load, until sample fracture.
Intensity and the fracture position of load when record fracture, result is as shown in table 2.
Table 2 drawing by high temperature test result
Supplement 0 point from the results shown in Table 2, under hot environment, the tensile strength of sample all obviously declines.At 500 ℃, just there is fracture in the sample of embodiment 3 and 4 weld seam under the tensile force of less than 500 MPa; Even and adopt the sample of embodiment 1 and 2 of welding procedure of the present invention under the tensile force effect of about 550MPa, in the situation that mother metal ruptures, weld seam does not also rupture.Situation is similar with it, and at 700 ℃, fracture has just occurred the sample of embodiment 3 and 4 weld seam under the tensile force of 370 MPa left and right; And adopting the sample of embodiment 1 and 2 of welding procedure of the present invention under the tensile force effect that approaches 450MPa, in the situation that mother metal ruptures, weld seam does not also rupture.
This result shows, welding procedure disclosed by the invention is applied to after Inconel600 alloy, and the mechanical behavior under high temperature of weld seam significantly improves, and is obviously better than other similar welding procedure.
In summary, welding procedure of the present invention is in the time welding for Inconel600 alloy, and gained weld seam not only has good surface topography and ambient temperature mechanical properties, and has the mechanical behavior under high temperature significantly improving.This is the quality of improving product greatly, and the application under various hot environments can be played good impetus to expansion Inconel600 alloy product.
Claims (6)
1. a welding procedure that is applicable to Inconel600 alloy, comprises the following steps:
(1) end to be welded of sample to be welded is cleaned out, kept clean dry, then by sample docking to be welded, with spot welding fixed position, logical argon gas is protected subsequently; Welding machine is connected in the mode of straight polarity direct current with sample to be welded;
(2) treat welded specimen and carry out bottoming welding, welding current 90-100A, voltage 12-14V, welds fast 0.8-1.2mm/s, and weldering is full two-layer;
(3) fill weldering and cosmetic welding, welding current 100-120A, voltage 12-16V, welds fast 1.0-1.4mm/s.
2. welding procedure according to claim 1, is characterized in that: described sample to be welded is Inconel600 wire rod, sheet material or tubing.
3. welding procedure according to claim 2, is characterized in that: for sheet profile sample to be welded, adopt V-type butting grooves; For tubing type sample to be welded, adopt U-shaped butting grooves; For wire rod type sample to be welded, adopt V-type butting grooves or I type butting grooves.
4. welding procedure according to claim 1, it is characterized in that, by mass percentage, the welding material using in welding procedure is made up of following chemical composition: C≤0.07%, Cr 16.0～18.0%, Fe 6.0～10.0%, Mn≤1.0%, Nb 1.5～3.0%, Si 0.6～1.0%, S≤0.015%, P≤0.015%, Ni >=70.0%.
5. welding procedure according to claim 4, is characterized in that, described welding material is made up of following chemical composition: C≤0.05%, Cr 16.0～17.0%, Fe 7.0～8.0 %, Mn≤0.7%, Nb 2.0～2.5%, Si 0.8～1.0%, S≤0.015%, P≤0.015%, Ni >=72.0%.
6. the Inconel600 alloy product that in claim 1-5, the welding procedure described in any one prepares.
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Cited By (6)
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| CN105750708A (en) * | 2016-04-29 | 2016-07-13 | 东方电气集团东方锅炉股份有限公司 | Welding method for circumferential weld of thick-wall nickel-based alloy header |
| CN106270975A (en) * | 2016-08-29 | 2017-01-04 | 张家港华日法兰有限公司 | A kind of welding procedure of tubing |
| CN106903396A (en) * | 2017-03-03 | 2017-06-30 | 贵州凯阳航空发动机有限公司 | Antifriction alloy welding procedure |
| CN109396610A (en) * | 2018-10-29 | 2019-03-01 | 江苏丰禾机械制造股份有限公司 | A kind of welding procedure of bellows |
| CN110434435A (en) * | 2019-08-28 | 2019-11-12 | 南京胜德金属装备有限公司 | A kind of MIG welding procedure of Alloy59 alloy |
| CN110560844A (en) * | 2019-09-16 | 2019-12-13 | 中国化学工程第六建设有限公司 | Welding method of nickel-based material pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106903396A (en) * | 2017-03-03 | 2017-06-30 | 贵州凯阳航空发动机有限公司 | Antifriction alloy welding procedure |
| CN109396610A (en) * | 2018-10-29 | 2019-03-01 | 江苏丰禾机械制造股份有限公司 | A kind of welding procedure of bellows |
| CN110434435A (en) * | 2019-08-28 | 2019-11-12 | 南京胜德金属装备有限公司 | A kind of MIG welding procedure of Alloy59 alloy |
| CN110560844A (en) * | 2019-09-16 | 2019-12-13 | 中国化学工程第六建设有限公司 | Welding method of nickel-based material pipeline |
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Effective date of registration: 20180504 Address after: 214536 Jiangsu Shuang Qin company, No. 268, South Jingjiang Road, Xinqiao Town, Jingjiang, Jiangsu Patentee after: Jiangsu double field Amperex Technology Limited Address before: 214536 Jiangsu, Jiangsu, Taizhou, Jingjiang, Xinjiang town, four North pier, Jiangsu double Qin Minsheng company Patentee before: Jiangsu Shuangqin Minsheng Metallurigical and Chemical Equipment Manufacturing Co., Ltd. |
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