CN111299770A - Welding process for welding stainless steel with thickness of 2mm to end part of joint of suspended track beam - Google Patents

Welding process for welding stainless steel with thickness of 2mm to end part of joint of suspended track beam Download PDF

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Publication number
CN111299770A
CN111299770A CN202010233622.4A CN202010233622A CN111299770A CN 111299770 A CN111299770 A CN 111299770A CN 202010233622 A CN202010233622 A CN 202010233622A CN 111299770 A CN111299770 A CN 111299770A
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welding
stainless steel
track beam
joint
thickness
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唐丽
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China MCC5 Group Corp Ltd
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China MCC5 Group Corp Ltd
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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
    • B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
    • 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
    • B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
    • 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
    • B23K9/32—Accessories

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  • 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 welding process for welding stainless steel with the thickness of 2mm to the end part of a joint of a suspended track beam, and solves the technical problem that the existing welding process cannot meet the requirement of welding the stainless steel with the thickness of 2mm to a low-alloy steel plate at the end part of the joint of the suspended track beam in the air. The invention comprises the following steps: step 1, polishing the parts to be welded of stainless steel with the thickness of 2mm and the end part of the joint of the aerial suspension type track beam; step 2, positioning stainless steel with the thickness of 2mm to a part to be welded at the end part of the joint of the aerial suspension type track beam; and 3, adjusting the welding current to 125-135A, adjusting the flow of the protective gas to 7-15L/min, and igniting the arc welding by adopting high-frequency pulses. The welding process is scientific and reasonable in design and convenient and fast to operate, and can effectively meet the welding requirement of welding the stainless steel with the thickness of 2mm to the end part of the joint of the aerial suspension type track beam, so that the technical defect that the end part of the joint of the aerial suspension type track beam can not be welded with the stainless steel with the thickness of 2mm to a low-alloy steel plate by the conventional welding process can be overcome.

Description

Welding process for welding stainless steel with thickness of 2mm to end part of joint of suspended track beam
Technical Field
The invention belongs to the technical field of dissimilar steel welding, and particularly relates to a welding process for welding stainless steel with the thickness of 2mm to the end part of a joint of a suspended track beam.
Background
The design of the joint end of the aerial suspension type track beam requires welding stainless steel with the thickness of 2mm to a low-alloy steel plate, and the existing welding process cannot be qualified for the welding operation. Therefore, the invention designs a welding process for welding stainless steel with the thickness of 2mm to the end part of the joint of the suspended track beam, so as to overcome the technical defect that the existing welding process cannot meet the requirement of welding the stainless steel with the thickness of 2mm to a low-alloy steel plate at the end part of the joint of the suspended track beam in the air.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the welding process for welding the stainless steel with the thickness of 2mm to the end part of the joint of the suspended track beam is provided, and the technical problem that the existing welding process cannot meet the requirement of welding the stainless steel with the thickness of 2mm to a low-alloy steel plate at the end part of the joint of the suspended track beam in the air is solved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the welding process for welding stainless steel with the thickness of 2mm to the end part of the joint of the suspended track beam comprises the following steps:
step 1, polishing the parts to be welded of stainless steel with the thickness of 2mm and the end part of the joint of the aerial suspension type track beam;
step 2, positioning stainless steel with the thickness of 2mm to a part to be welded at the end part of the joint of the aerial suspension type track beam;
and 3, adjusting the welding current to 125-135A, adjusting the flow of the protective gas to 7-15L/min, and igniting the arc welding by adopting high-frequency pulses.
Further, the 2mm thick stainless steel is 2mm thick 06Cr17Ni12Mo 2.
Further, the material of the part to be welded at the end part of the aerial suspension type track beam joint is Q345 qE.
Further, the thickness of the part to be welded at the end part of the aerial suspension type track beam joint is not more than 50 mm.
Further, in the step 3, the used protective gas is argon.
Further, in the step 3, the material of the welding wire used for welding is CHG 306.
Further, the welding wire is
Figure BDA0002430222240000021
Further, the tungsten electrode of the welding wire for welding is
Figure BDA0002430222240000022
Compared with the prior art, the invention has the following beneficial effects:
the welding process is scientific and reasonable in design and convenient and fast to operate, and can effectively meet the welding requirement of welding the stainless steel with the thickness of 2mm to the end part of the joint of the aerial suspension type track beam, so that the technical defect that the end part of the joint of the aerial suspension type track beam can not be welded with the stainless steel with the thickness of 2mm to a low-alloy steel plate by the conventional welding process can be overcome.
Drawings
FIG. 1 is a schematic view of the process of the present invention.
FIG. 2 is a forming diagram of the invention after 2mm thick stainless steel 06Cr17Ni12Mo2 is welded to the to-be-welded part at the end of the aerial suspension type rail beam joint.
Fig. 3 is a side view of fig. 2.
Wherein, the names corresponding to the reference numbers are:
stainless steel 1-2mm thick; 2-aerial suspended rail beam joint end.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus, it should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; of course, mechanical connection and electrical connection are also possible; alternatively, they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The design of the joint end of the aerial suspension type track beam requires welding stainless steel with the thickness of 2mm to a low-alloy steel plate, and the existing welding process cannot be qualified for the welding operation. Therefore, the invention designs a welding process for welding stainless steel with the thickness of 2mm to the end part of the joint of the suspended track beam, so as to overcome the technical defect that the existing welding process cannot meet the requirement of welding the stainless steel with the thickness of 2mm to a low-alloy steel plate at the end part of the joint of the suspended track beam in the air. The welding process of the invention, as shown in fig. 1-3, comprises the following steps:
step 1, polishing the parts to be welded of stainless steel with the thickness of 2mm and the end part of the joint of the aerial suspension type track beam;
step 2, positioning stainless steel with the thickness of 2mm to a part to be welded at the end part of the joint of the aerial suspension type track beam;
and 3, adjusting the welding current to 125-135A, adjusting the flow of the protective gas to 7-15L/min, and igniting the arc welding by adopting high-frequency pulses. Wherein the protective gas is argon. The welding wire used for welding is made of CHG306, and the welding wire used for welding is
Figure BDA0002430222240000041
The tungsten electrode of the welding wire used for welding is
Figure BDA0002430222240000042
The stainless steel 1 with the thickness of 2mm is 06Cr17Ni12Mo2 with the thickness of 2 mm. The material of the part to be welded of the joint end part 2 of the aerial suspension type track beam is Q345qE, and the thickness of the part to be welded of the joint end part of the aerial suspension type track beam is not more than 50 mm.
The welding process is scientific and reasonable in design and convenient and fast to operate, and can effectively meet the welding requirement of welding the stainless steel with the thickness of 2mm to the end part of the joint of the aerial suspension type track beam, so that the technical defect that the end part of the joint of the aerial suspension type track beam can not be welded with the stainless steel with the thickness of 2mm to a low-alloy steel plate by the conventional welding process can be overcome.
In order that those skilled in the art will better understand the technical aspects of the present invention, the following examples are provided for reference.
Example 1, as shown in fig. 1-3, the present invention provides a process for welding 2mm thick stainless steel to the end of a suspended track beam joint, comprising the steps of:
step 1, polishing the parts to be welded of stainless steel with the thickness of 2mm and the end part of the joint of the aerial suspension type track beam;
step 2, positioning stainless steel with the thickness of 2mm to a part to be welded at the end part of the joint of the aerial suspension type track beam;
and 3, adjusting the welding current to 125-135A, adjusting the flow of the protective gas to 7-15L/min, and igniting the arc welding by adopting high-frequency pulses.
Through the operation of the steps, the stainless steel with the thickness of 2mm can be well welded to the end part of the joint of the suspension type track beam. And 3, performing full-length welding when high-frequency pulse ignition arc welding is adopted.
Example 2, as shown in fig. 1-3, the present invention provides a process for welding 2mm thick stainless steel to the end of a suspended track beam joint, comprising the steps of:
step 1, polishing the parts to be welded of stainless steel with the thickness of 2mm and the end part of the joint of the aerial suspension type track beam;
step 2, positioning stainless steel with the thickness of 2mm to a part to be welded at the end part of the joint of the aerial suspension type track beam;
and 3, adjusting the welding current to 125-135A, adjusting the flow of the protective gas to 7-15L/min, and igniting the arc welding by adopting high-frequency pulses.
Wherein the 2mm thick stainless steel is 2mm thick 06Cr17Ni12Mo 2. The material of the part to be welded at the joint end of the aerial suspension type track beam is Q345 qE. The stainless steel with the thickness of 2mm and the part to be welded at the joint end part of the aerial suspension type track beam are made of different materials and are welded by dissimilar steel. The method can effectively weld the dissimilar steels together and meet the relevant requirements.
The welding of dissimilar metals has some inherent problems, such as the composition and performance of the fusion zone of dissimilar metals, and the destruction of the welding structure of dissimilar metals mostly occurs in the fusion zone, and because the crystallization characteristics of the welding seam on each section close to the fusion zone are different, a transition layer with poor performance and component change is easy to form. In addition, since the time at high temperature is long, the diffusion layer in this region is enlarged, and the unevenness of the metal is further increased. And when dissimilar metals are welded or after being welded, after heat treatment or high-temperature operation, the phenomenon that carbon on one side of low alloy migrates into a high alloy welding seam through the welding seam boundary is often found, a decarburized layer and a carbon-added layer are respectively formed on two sides of a fusion line, the decarburized layer is formed on a base material on one side of the low alloy, and the carbon-added layer is formed on one side of the high alloy welding seam. The welding process can effectively overcome the technical problems through the steps.
Example 3, as shown in fig. 1-3, the present invention provides a process for welding 2mm thick stainless steel to the end of a suspended track beam joint, comprising the steps of:
step 1, polishing the parts to be welded of stainless steel with the thickness of 2mm and the end part of the joint of the aerial suspension type track beam;
step 2, positioning stainless steel with the thickness of 2mm to a part to be welded at the end part of the joint of the aerial suspension type track beam;
and 3, adjusting the welding current to 125-135A, adjusting the flow of the protective gas to 7-15L/min, and igniting the arc welding by adopting high-frequency pulses.
Wherein, the thickness of the part to be welded at the joint end part of the aerial suspension type track beam is not more than 50 mm. The maximum thickness of the part to be welded at the joint end part of the aerial suspension type track beam can reach 50mm, and two steel members with large thickness difference can be welded by the method.
Example 4, as shown in fig. 1-3, the present invention provides a process for welding 2mm thick stainless steel to the end of a suspended track beam joint, comprising the steps of:
step 1, polishing the parts to be welded of stainless steel with the thickness of 2mm and the end part of the joint of the aerial suspension type track beam;
step 2, positioning stainless steel with the thickness of 2mm to a part to be welded at the end part of the joint of the aerial suspension type track beam;
and 3, adjusting the welding current to 125-135A, adjusting the flow of the protective gas to 7-15L/min, and igniting the arc welding by adopting high-frequency pulses.
Wherein the 2mm thick stainless steel is 2mm thick 06Cr17Ni12Mo 2. The material of the part to be welded at the joint end of the aerial suspension type track beam is Q345 qE. The thickness of the part to be welded at the end part of the aerial suspension type track beam joint is not more than 50mm, the maximum thickness of the part to be welded at the end part of the aerial suspension type track beam joint can reach 50mm, the stainless steel with the thickness of 2mm is different from the material of the part to be welded at the end part of the aerial suspension type track beam joint, the steel is welded by dissimilar steel, the large difference of the thickness between the two steel components is large, and the dissimilar steel components with the large difference of the thicknesses can be welded by the method.
Example 5, as shown in fig. 1-3, the present invention provides a process for welding 2mm thick stainless steel to the end of a suspended track beam joint, comprising the steps of:
step 1, polishing the parts to be welded of stainless steel with the thickness of 2mm and the end part of the joint of the aerial suspension type track beam;
step 2, positioning stainless steel with the thickness of 2mm to a part to be welded at the end part of the joint of the aerial suspension type track beam;
and 3, adjusting the welding current to 125-135A, adjusting the flow of the protective gas to 7-15L/min, and igniting the arc welding by adopting high-frequency pulses.
In the step 3, the shielding gas is argon, the welding wire material is CHG306, and the welding wire is
Figure BDA0002430222240000071
The tungsten electrode of the welding wire used for welding is
Figure BDA0002430222240000072
Therefore, various performances of the welded steel member can be effectively improved. Particularly, when the stainless steel with the thickness of 2mm and the part to be welded at the joint end part of the aerial suspension type track beam are made of dissimilar steel, and the thickness difference between the stainless steel and the part to be welded is large, the advantages are more prominent.
It is noted that the 2mm thick stainless steel and the aerial suspension rail beam joint ends were welded together in a full-length weld.
The welding process is scientific and reasonable in design and convenient and fast to operate, and can effectively meet the welding requirement of welding the stainless steel with the thickness of 2mm to the end part of the joint of the aerial suspension type track beam, so that the technical defect that the end part of the joint of the aerial suspension type track beam can not be welded with the stainless steel with the thickness of 2mm to a low-alloy steel plate by the conventional welding process can be overcome.
The invention can effectively weld 2MM thick stainless steel 06Cr17Ni12Mo to steel Q345qE at the joint end part of the aerial suspension type track beam.
The invention realizes dissimilar steel welding between stainless steel 06Cr17Ni12Mo and steel Q345qE, and simultaneously realizes welding under the working condition of large difference of the thicknesses of the two steels, wherein the thickness of the stainless steel 06Cr17Ni12Mo is 2mm, the thickness of the steel Q345qE at the end part of the joint of the aerial suspension type track beam is 50mm, and the difference of the two is huge.
The stainless steel material welded to the end part of the joint of the suspension type track beam is 06Cr17Ni12Mo2, the thickness of the stainless steel material is 2mm, and the stainless steel material is welded on delta 50Q345qE at a lifting lug of the track beam.
The invention can effectively weld dissimilar steel materials with large thickness difference, has strong practicability and is suitable for wide popularization and application in the technical field.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, but not to limit the technical solutions, and certainly not to limit the patent scope of the present invention; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; that is, the technical problems to be solved by the present invention, which are not substantially changed or supplemented by the spirit and the concept of the main body of the present invention, are still consistent with the present invention and shall be included in the scope of the present invention; in addition, the technical scheme of the invention is directly or indirectly applied to other related technical fields, and the technical scheme is included in the patent protection scope of the invention.

Claims (8)

  1. A welding process for welding stainless steel 1.2mm thick to the end of a joint of a suspended track beam, comprising the steps of:
    step 1, polishing the parts to be welded of stainless steel with the thickness of 2mm and the end part of the joint of the aerial suspension type track beam;
    step 2, positioning stainless steel with the thickness of 2mm to a part to be welded at the end part of the joint of the aerial suspension type track beam;
    and 3, adjusting the welding current to 125-135A, adjusting the flow of the protective gas to 7-15L/min, and igniting the arc welding by adopting high-frequency pulses.
  2. 2. The welding process of a 2mm thick stainless steel to a suspended track beam joint end according to claim 1, wherein the 2mm thick stainless steel is 2mm thick 06Cr17Ni12Mo 2.
  3. 3. A welding process of 2mm thick stainless steel to the end of a suspended track beam joint as claimed in claim 1, wherein the material of the to-be-welded part of the aerial suspended track beam joint end is Q345 qE.
  4. 4. A welding process for welding 2mm thick stainless steel to the end of a suspended track beam joint as claimed in claim 1, wherein the thickness of the to-be-welded portion of the end of the suspended track beam joint is no greater than 50 mm.
  5. 5. The welding process of 2mm thick stainless steel to a suspended track beam joint end as claimed in claim 1, wherein in step 3 the shielding gas used is argon.
  6. 6. The welding process of claim 1, wherein in step 3, the welding wire is CHG 306.
  7. 7. The process of welding a 2mm thick stainless steel to a suspended track beam joint end as claimed in claim 6, wherein the welding wire used is
    Figure FDA0002430222230000011
  8. 8. The process of welding a 2mm thick stainless steel to an end of a suspended track beam joint as claimed in claim 6, wherein the welding wire has a tungsten electrode
    Figure FDA0002430222230000012
CN202010233622.4A 2020-03-30 2020-03-30 Welding process for welding stainless steel with thickness of 2mm to end part of joint of suspended track beam Pending CN111299770A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102357720A (en) * 2011-09-26 2012-02-22 中船桂江造船有限公司 Welding method of dissimilar steels such as 917 low-magnetic steel and CCSB steel
CN102744582A (en) * 2011-03-18 2012-10-24 威尔机械江苏有限公司 Machining method for bearing seat of continuous casting machine
KR20170136107A (en) * 2016-05-31 2017-12-11 한국산기 주식회사 A method of welding dissimilar of alloys
CN108127226A (en) * 2017-12-26 2018-06-08 重庆安特管业有限公司 A kind of welding method of mild steel and stainless steel
CN108817620A (en) * 2018-06-30 2018-11-16 武汉冶钢结构有限责任公司 The welding method of stainless sheet steel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744582A (en) * 2011-03-18 2012-10-24 威尔机械江苏有限公司 Machining method for bearing seat of continuous casting machine
CN102357720A (en) * 2011-09-26 2012-02-22 中船桂江造船有限公司 Welding method of dissimilar steels such as 917 low-magnetic steel and CCSB steel
KR20170136107A (en) * 2016-05-31 2017-12-11 한국산기 주식회사 A method of welding dissimilar of alloys
CN108127226A (en) * 2017-12-26 2018-06-08 重庆安特管业有限公司 A kind of welding method of mild steel and stainless steel
CN108817620A (en) * 2018-06-30 2018-11-16 武汉冶钢结构有限责任公司 The welding method of stainless sheet steel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
王海燕等: "焊接工艺对TP304/SS400异种钢焊接接头组织和性能的影响", 《焊接学报》 *
袁国义: "《有色金属材料焊割技术》", 31 August 2007 *

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Application publication date: 20200619