CN112108753B - Welding method for vacuum electron beam single-side welding and double-side forming of 316LN-IG stainless steel - Google Patents

Welding method for vacuum electron beam single-side welding and double-side forming of 316LN-IG stainless steel Download PDF

Info

Publication number
CN112108753B
CN112108753B CN202010979943.9A CN202010979943A CN112108753B CN 112108753 B CN112108753 B CN 112108753B CN 202010979943 A CN202010979943 A CN 202010979943A CN 112108753 B CN112108753 B CN 112108753B
Authority
CN
China
Prior art keywords
welding
electron beam
vacuum
gun
stainless steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010979943.9A
Other languages
Chinese (zh)
Other versions
CN112108753A (en
Inventor
胡志强
王晓宇
武兴华
廖洪彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwestern Institute of Physics
Original Assignee
Southwestern Institute of Physics
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Southwestern Institute of Physics filed Critical Southwestern Institute of Physics
Priority to CN202010979943.9A priority Critical patent/CN112108753B/en
Publication of CN112108753A publication Critical patent/CN112108753A/en
Application granted granted Critical
Publication of CN112108753B publication Critical patent/CN112108753B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B23K15/00—Electron-beam welding or cutting
    • 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
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/06—Electron-beam welding or cutting within a vacuum chamber
    • 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
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B23K2103/05—Stainless steel

Abstract

A welding method for forming two sides of 316LN-IG stainless steel by vacuum electron beam single-side welding comprises processing the surfaces to be welded of welding test plates to preset roughness, cleaning and drying for later use as required, then controlling the assembly gap between every two spare welding test plates to be less than or equal to the preset gap, the misalignment amount to be less than or equal to the preset misalignment amount, performing spot welding connection, putting into a vacuum chamber, adjusting welding parameters, performing deep fusion welding on a welding seam through an electron beam gun, then adjusting the positions of the electron beam gun and the welding seam, keeping the welding seam at a flat welding position, and performing finish welding on the front side of the welding seam; after finishing the finish welding, the welding test plate is placed in a vacuum chamber for natural cooling, and the double-sided forming of single-sided welding is realized under the condition of no beveling and no welding wire filling, so that the front side of the welding line is free from undercuts and depressions, the back side of the welding line is free from welding beading and collapse, the through welding is ensured, the defects of chain-shaped air holes, cold shut and the like in the welding line can be effectively avoided, and the quality of the welding line meets the design requirements.

Description

Welding method for vacuum electron beam single-side welding and double-side forming of 316LN-IG stainless steel
Technical Field
The invention belongs to the technical field of welding, and particularly relates to a welding method for single-side welding and double-side forming of 316LN-IG stainless steel by using a vacuum electron beam.
Background
An International Thermonuclear Experimental Reactor (ITER) is an international cooperative research project for verifying the scientific and technical feasibility of fusion energy. The 316LN-IG material is a 316LN material specially developed for ITER requirements, and compared with the common 316LN material, the 316LN material mainly adjusts partial chemical components to meet the requirements of low activation and high temperature use of the ITER fusion experimental reactor structural material. 316LN-IG is the main structural material of the tritium-producing cladding shielding block, the tritium-producing cladding shielding block is of a closed cavity structure, the requirement on the assembly size of a test plate is high, the welding line is mainly a pressure-bearing boundary, the thickness of the welding line relates to the range of 20 mm-90 mm, the requirements on single-side welding and double-side forming and small deformation after welding are met, and vacuum electron beam welding is a good choice.
In the traditional process, the vacuum electron beam welding mainly adopts vertical gun flat welding, so that the double-side forming of single-side welding is difficult to ensure, the front side of a welding seam is easy to have undercut, the back side of the welding seam is easy to have problems of hump-shaped welding beading, incomplete penetration, collapse and the like, and in addition, the defects of chain-shaped air holes, cold shut and the like are easy to generate in the welding seam.
Disclosure of Invention
The invention provides a vacuum electron beam welding single-side welding double-side forming method for large-thickness 316LN-IG stainless steel, which aims to solve the problems that when a traditional vacuum electron beam welding 316LN-IG material is used, single-side welding double-side forming is difficult to ensure, undercut is easy to occur on the front side of a welding line, hump-shaped welding beading, incomplete penetration and collapse are easy to occur on the back side of the welding line, chain-shaped air holes and cold insulation are easy to generate in the welding line, and the like.
The invention is realized by the following technical scheme:
firstly, machining the surface to be welded of a welding test plate to ensure that the roughness of the surface to be welded is less than or equal to a preset roughness, cleaning the surface to be welded and the peripheral position after machining is finished, and drying for later use; the welding test plate is made of 316LN-IG stainless steel;
step two, assembling the standby welding test plates, controlling the assembly gap between every two standby welding test plates to be smaller than or equal to a preset gap, and performing spot welding connection on every two standby welding test plates after the misalignment amount is smaller than or equal to a preset misalignment amount;
placing the welding test plates after spot welding connection into a vacuum chamber, keeping the welding seams between the welding test plates at the transverse welding position, adjusting the position of an electron beam gun and the distance between the electron beam gun and the welding seams, and when the position of the electron beam gun is the transverse gun position and the distance between the electron beam gun and the welding seams reaches a preset distance, vacuumizing the vacuum chamber to maintain the vacuum degree in the vacuum chamber at a preset vacuum degree;
adjusting the position between the electron beam gun and the welding seam, adjusting welding parameters when the moving track of the electron beam gun is in the center of the welding seam, and performing deep fusion welding on the welding seam; the deep fusion welding is horizontal transverse welding with a transverse gun;
fifthly, after the deep fusion welding is finished, adjusting the positions of the electron beam gun and the welding seam, keeping the welding seam at a flat welding position, and performing finish welding on the front surface of the welding seam by defocusing electron beams by adopting the electron beam gun; the modified welding is vertical gun vertical flat welding;
and step six, after finishing the finish welding, placing the welding test plate in a vacuum chamber for natural cooling, removing the vacuum of the vacuum chamber when the cooling time reaches the preset time, and taking out the welding test plate.
Furthermore, the wall thickness of the welding test plate is 20 mm-90 mm.
Further, the preset roughness is 3.2 μm.
Further, in the first step, acetone is adopted to clean the to-be-welded surface and the position with the thickness being 1 time of the periphery after the machining is finished.
Further, in the second step, the preset gap is 0.1mm, and the preset unfitness of butt joint is 0.1 mm.
And further, in the second step, the two standby welding test plates are uniformly spot-welded by manual argon arc welding.
Further, the preset distance in the third step is 400 mm-900 mm.
Further, the range of the preset vacuum degree in the third step is 10-2Pa～10-3Pa。
Further, the welding parameters in the fourth step are specifically as follows: the acceleration voltage is 120KV, the welding speed is 120 mm/min-360 mm/min, the beam current is 70 mA-180 mA, the focusing current is 2000 mA-2080 mA, the vertical distance between an electron beam gun and a welding seam is 400 mm-900 mm, the scanning swing of an electron beam in the X direction is 0-1 mm, the scanning swing of the electron beam in the Y direction is 0-1 mm, the scanning waveform is circular, and the scanning frequency is 500 Hz-1000 Hz.
Further, the specific parameters of the defocused electron beam in the fifth step are as follows: the acceleration voltage is 120KV, the welding speed is 360mm/min, the defocusing beam current is 30mA, the focusing current is 2030mA, the vertical distance between a gun mouth of a defocusing electron beam and a welding line is 900mm, the scanning swing amplitude of the electron beam in the X direction is 0-4 mm, the scanning swing amplitude of the electron beam in the Y direction is 0mm, the scanning waveform is linear, and the scanning frequency is 1000 Hz.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the invention, the welding test plate is welded by the electron beam in a vacuum environment, the electron beam energy is concentrated, the heat input is small, the penetrating power is strong, the energy conversion efficiency is high, the controllability is good, the welding seam deformation is small, meanwhile, the influence of harmful gas in the atmosphere on the welding seam quality can be effectively avoided, and the welding efficiency is improved.
2. The method adopts the horizontal and horizontal welding of the horizontal gun to carry out the deep fusion welding on the welding seam, can realize the single-side welding and double-side forming of the welding test plate without forming a groove on the surface to be welded, and then adopts the vertical and horizontal welding of the vertical gun to carry out the front face finish welding on the welding seam, so that the front face of the welding seam has no undercut and depression, the back face of the welding seam has no welding beading and collapse, the penetration of the welding seam is ensured, the defects of chain-shaped air holes, cold shut and the like in the welding seam can be effectively avoided, and the quality of the welding seam meets the design requirements of the base metal.
3. The invention provides technical support for the development of the helium cold solid state experiment cladding shielding block, can also provide reference for the welding of similar inner cavity structures in other industries, and has better application prospect.
Drawings
FIG. 1 is a process flow diagram of one embodiment of the present invention
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 examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
The welding test plate in the embodiment is made of 316LN-IG stainless steel, including but not limited to 316LN-IG stainless steel forged piece and 316LN-IG stainless steel rolled plate.
When the wall thickness of a welding test plate is 20mm, the welding method for single-side welding and double-side forming of 316LN-IG stainless steel by vacuum electron beams specifically comprises the following steps:
firstly, machining the to-be-welded surface of a welding test plate with the thickness of 20mm to ensure that the roughness of the to-be-welded surface is less than or equal to 3.2 microns, cleaning oil stains, impurities and the like on the to-be-welded surface and the position of 1 time of the thickness of the periphery by using acetone after machining is finished, and drying for later use;
and step two, assembling the spare welding test plates, controlling the assembly gap between every two spare welding test plates to be less than or equal to 0.1mm and the misalignment amount to be less than or equal to 0.1mm, and then performing uniform spot welding connection on the two ends of every two spare welding test plates by adopting manual argon arc welding to ensure that the two ends of every two spare welding test plates are firm.
Step three, after spot welding connection is finished, horizontally placing the welding test plate into a vacuum chamber, keeping a welding seam of the welding test plate at a transverse welding position, adjusting an electron beam gun to be at the transverse gun position, keeping the distance between the electron beam gun and the welding seam to be 900mm, and vacuumizing the vacuum chamber to control the vacuum degree of the vacuum chamber to be 5 multiplied by 10-3Pa；
And step four, adjusting the position between the electron beam gun and the welding seam, adjusting welding parameters when the moving track of the electron beam gun is positioned in the center of the welding seam, and performing deep fusion welding on the welding seam. Wherein, the deep fusion welding is horizontal transverse welding with a transverse gun. Specifically, the welding parameters in this step are: the accelerated voltage is 120KV, the welding speed is 360mm/min, the beam current is 74mA, the focusing current is 2020mA, the vertical distance between the muzzle of the focusing electron beam and the surfaces of the two welding test panels is 900mm, the scanning swing of the electron beam in the X direction is 1mm, the scanning swing of the electron beam in the Y direction is 11mm, the scanning waveform is circular, and the scanning frequency is 1000 Hz.
And step five, after the deep fusion welding is finished, adjusting the position between an electron beam gun and the welding seam, keeping the welding seam at the flat welding position, and then performing finish welding on the front surface of the welding seam by using a defocused electron beam through the electron beam gun. Wherein, the modified welding is vertical flat welding with a vertical gun. Specifically, the welding parameters in this step are: the acceleration voltage is 120KV, the welding speed is 360mm/min, the defocusing beam current is 30mA, the focusing current is 2030mA, the distance between an electron beam gun and the surface of a welding seam is 900mm, the scanning swing of an electron beam in the X direction is 3mm, the scanning swing of the electron beam in the Y direction is 0mm, the scanning waveform is linear, and the scanning frequency is 1000 Hz.
And step six, after finishing the finish welding, placing the welding test plate in a vacuum chamber for natural cooling for 2 hours, then removing the vacuum degree of the vacuum chamber, and taking out the welding test plate.
Further, after the welding test plate is taken out, appearance detection, nondestructive inspection and performance test are carried out on the welding seam. Wherein, the front and back surfaces of the welding line are well formed without the defects of recess, undercut, welding beading and the like. And performing RT, UT and PT nondestructive flaw detection on the weld joint according to NB/T47013-2015, and the weld joint has no defects such as air holes and cracks, and the quality of the weld joint meets the requirement of a grade I weld joint. The property test means in particular the tensile strength Rm539MPa, yield strength Reh306MPa, the impact work is 298J, the bending test is qualified, and the weld quality of the welding test plate meets the weld requirement.
Example 2
The welding test plate in the embodiment is made of 316LN-IG stainless steel, including but not limited to 316LN-IG stainless steel forged piece and 316LN-IG stainless steel rolled plate.
When the wall thickness of a welding test plate is 40mm, the welding method for single-side welding and double-side forming of 316LN-IG stainless steel by vacuum electron beams specifically comprises the following steps:
firstly, machining the to-be-welded surface of a welding test plate with the thickness of 40mm to ensure that the roughness of the to-be-welded surface is less than or equal to 3.2 microns, cleaning oil stains, impurities and the like on the to-be-welded surface and the position with the thickness of 1 time of the periphery by using acetone after machining is finished, and drying for later use;
and step two, assembling the spare welding test plates, controlling the assembly gap between every two spare welding test plates to be less than or equal to 0.1mm and the misalignment amount to be less than or equal to 0.1mm, and then performing uniform spot welding connection on the two ends of every two spare welding test plates by adopting manual argon arc welding to ensure that the two ends of every two spare welding test plates are firm.
Step three, after spot welding connection is completed, horizontally placing the welding test plate into a vacuum chamber, keeping a welding seam of the welding test plate at a transverse welding position, adjusting an electron beam gun to be at the transverse gun position, keeping the distance between the electron beam gun and the welding seam to be 900mm, and vacuumizing the vacuum chamber to ensure that the vacuum chamber is vacuumizedThe degree of vacuum of (2) is controlled to be 5X 10-3Pa；
And step four, adjusting the position between the electron beam gun and the welding seam, adjusting welding parameters when the moving track of the electron beam gun is positioned in the center of the welding seam, and performing deep fusion welding on the welding seam. Wherein, the deep fusion welding is horizontal transverse welding with a transverse gun. Specifically, the welding parameters in this step are: the accelerated voltage is 120KV, the welding speed is 180mm/min, the beam current is 93mA, the focusing current is 2000mA, the vertical distance between the muzzle of the focusing electron beam and the surfaces of the two welding test plates is 900mm, the scanning swing of the electron beam in the X direction is 1mm, the scanning swing of the electron beam in the Y direction is 1mm, the scanning waveform is circular, and the scanning frequency is 1000 Hz.
And step five, after the deep fusion welding is finished, adjusting the position between an electron beam gun and the welding seam, keeping the welding seam at the flat welding position, and then performing finish welding on the front surface of the welding seam by using a defocused electron beam through the electron beam gun. Wherein, the modified welding is vertical flat welding with a vertical gun. Specifically, the welding parameters in this step are: 120KV of accelerated voltage, 360mm/min of welding speed, 30mA of defocused beam, 2020mA of focusing current, 900mm of electron beam gun from the surface of a welding seam, 4mm of scanning swing of electron beams in the X direction, 0mm of scanning swing of electron beams in the Y direction, linear scanning waveform and 1000Hz of scanning frequency.
And step six, after finishing the finish welding, placing the welding test plate in a vacuum chamber for natural cooling for 2 hours, then removing the vacuum degree of the vacuum chamber, and taking out the welding test plate.
Further, after the welding test plate is taken out, appearance detection, nondestructive inspection and performance test are carried out on the welding seam. Wherein, the front and back surfaces of the welding line are well formed without the defects of recess, undercut, welding beading and the like. And performing RT, UT and PT nondestructive flaw detection on the weld joint according to NB/T47013-2015, and the weld joint has no defects such as air holes and cracks, and the quality of the weld joint meets the requirement of a grade I weld joint. The property test means in particular the tensile strength Rm535MPa, yield strength Reh294MPa, impact energy of 300J, qualified bending test, and weld quality of the welding test plate meeting the weld requirements.
Example 3
The welding test plate in the embodiment is made of 316LN-IG stainless steel, including but not limited to 316LN-IG stainless steel forged piece and 316LN-IG stainless steel rolled plate.
When the wall thickness of a welding test plate is 90mm, the welding method for single-side welding and double-side forming of 316LN-IG stainless steel by vacuum electron beams specifically comprises the following steps:
firstly, machining the to-be-welded surface of a welding test plate with the thickness of 90mm to ensure that the roughness of the to-be-welded surface is less than or equal to 3.2 microns, cleaning oil stains, impurities and the like on the to-be-welded surface and the position of 1 time of the thickness of the periphery by using acetone after machining is finished, and drying for later use;
and step two, assembling the spare welding test plates, controlling the assembly gap between every two spare welding test plates to be less than or equal to 0.1mm and the misalignment amount to be less than or equal to 0.1mm, and then performing uniform spot welding connection on the two ends of every two spare welding test plates by adopting manual argon arc welding to ensure that the two ends of every two spare welding test plates are firm.
Step three, after spot welding connection is finished, horizontally placing the welding test plate into a vacuum chamber, keeping a welding seam of the welding test plate at a transverse welding position, adjusting an electron beam gun to be at the transverse gun position, keeping the distance between the electron beam gun and the welding seam to be 400mm, and vacuumizing the vacuum chamber to control the vacuum degree of the vacuum chamber to be 5 multiplied by 10-3Pa；
And step four, adjusting the position between the electron beam gun and the welding seam, adjusting welding parameters when the moving track of the electron beam gun is positioned in the center of the welding seam, and performing deep fusion welding on the welding seam. Wherein, the deep fusion welding is horizontal transverse welding with a transverse gun. Specifically, the welding parameters in this step are: the accelerated voltage is 120KV, the welding speed is 120mm/min, the beam current is 180mA, the focusing current is 2074mA, the vertical distance between the muzzle of the focusing electron beam and the surfaces of the two welding test plates is 400mm, the scanning swing of the electron beam in the X direction is 1mm, the scanning swing of the electron beam in the Y direction is 1mm, the scanning waveform is circular, and the scanning frequency is 500 Hz.
And step five, after the deep fusion welding is finished, adjusting the position between an electron beam gun and the welding seam, keeping the welding seam at the flat welding position, and then performing finish welding on the front surface of the welding seam by using a defocused electron beam through the electron beam gun. Wherein, the modified welding is vertical flat welding with a vertical gun. Specifically, the welding parameters in this step are: 120KV of accelerated voltage, 360mm/min of welding speed, 30mA of defocused beam, 2020mA of focusing current, 900mm of electron beam gun from the surface of a welding seam, 4mm of scanning swing of electron beams in the X direction, 0mm of scanning swing of electron beams in the Y direction, linear scanning waveform and 1000Hz of scanning frequency.
And step six, after finishing the finish welding, placing the welding test plate in a vacuum chamber for natural cooling for 2 hours, then removing the vacuum degree of the vacuum chamber, and taking out the welding test plate.
Further, after the welding test plate is taken out, appearance detection, nondestructive inspection and performance test are carried out on the welding seam. Wherein, the front and back surfaces of the welding line are well formed without the defects of recess, undercut, welding beading and the like. And performing RT, UT and PT nondestructive flaw detection on the weld joint according to NB/T47013-2015, and the weld joint has no defects such as air holes and cracks, and the quality of the weld joint meets the requirement of a grade I weld joint. The property test means in particular the tensile strength Rm568MPa, yield strength Reh337MPa, impact work of 300J, qualified bending test, and weld quality of the welding test plate reaching the weld requirements.
In particular, the above embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above embodiments are only illustrative of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. A welding method for vacuum electron beam single-side welding and double-side forming of 316LN-IG stainless steel is characterized by comprising the following steps:
firstly, machining the surface to be welded of a welding test plate to ensure that the roughness of the surface to be welded is less than or equal to a preset roughness, cleaning the surface to be welded and the peripheral position after machining is finished, and drying for later use; the welding test plate is made of 316LN-IG stainless steel;
step two, assembling the standby welding test plates, controlling the assembly gap between every two standby welding test plates to be smaller than or equal to a preset gap, and performing spot welding connection on every two standby welding test plates after the misalignment amount is smaller than or equal to a preset misalignment amount;
placing the welding test plates after spot welding connection into a vacuum chamber, keeping the welding seams between the welding test plates at the transverse welding position, adjusting the position of an electron beam gun and the distance between the electron beam gun and the welding seams, and when the position of the electron beam gun is the transverse gun position and the distance between the electron beam gun and the welding seams reaches a preset distance, vacuumizing the vacuum chamber to maintain the vacuum degree in the vacuum chamber at a preset vacuum degree;
adjusting the position between the electron beam gun and the welding seam, adjusting welding parameters when the moving track of the electron beam gun is in the center of the welding seam, and performing deep fusion welding on the welding seam; the deep fusion welding is horizontal transverse welding with a transverse gun;
fifthly, after the deep fusion welding is finished, adjusting the positions of the electron beam gun and the welding seam, keeping the welding seam at a flat welding position, and performing finish welding on the front surface of the welding seam by defocusing electron beams by adopting the electron beam gun; the modified welding is vertical gun vertical flat welding;
sixthly, after finishing the finish welding, placing the welding test plate in a vacuum chamber for natural cooling, removing the vacuum of the vacuum chamber when the cooling time reaches the preset time, and taking out the welding test plate;
wherein the preset distance in the third step is 400 mm-900 mm;
the welding parameters in the fourth step are as follows: the method is characterized in that the acceleration voltage is 120KV, the welding speed is 120 mm/min-360 mm/min, the beam current is 70 mA-180 mA, the focusing current is 2000 mA-2080 mA, the vertical distance between an electron beam gun and a welding seam is 400 mm-900 mm, the scanning swing of an electron beam in the X direction is 0-1 mm, the scanning swing of the electron beam in the Y direction is 0-1 mm, the scanning waveform is circular, and the scanning frequency is 500 Hz-1000 Hz.
2. The welding method for the single-sided forming and the double-sided forming of the 316LN-IG stainless steel by vacuum electron beam welding according to claim 1, wherein the wall thickness of the welding test plate is 20 mm-90 mm.
3. The vacuum electron beam single-side forming welding method for 316LN-IG stainless steel, according to claim 1, wherein the predetermined roughness is 3.2 μm.
4. The vacuum electron beam single-side welding and double-side forming welding method for 316LN-IG stainless steel according to claim 1, wherein in step one, acetone is used to clean the positions of 1 thickness of the surfaces to be welded and the periphery after the completion of the processing.
5. The welding method for single-sided forming and vacuum electron beam welding of 316LN-IG stainless steel according to claim 1, wherein in step two, the preset gap is 0.1mm, and the preset misalignment amount is 0.1 mm.
6. The vacuum electron beam single-side welding and double-side forming welding method for 316LN-IG stainless steel as claimed in claim 1, wherein in step two, the two ends of each two spare welding test panels are spot welded uniformly by manual argon arc welding.
7. The vacuum electron beam single-side welding and double-side forming welding method for 316LN-IG stainless steel as claimed in claim 1, wherein the preset vacuum degree in step three is in the range of 10-2Pa~10-3Pa。
8. The welding method for single-sided forming and double-sided forming of 316LN-IG stainless steel by vacuum electron beam welding according to claim 1, wherein the welding parameters in step five are specifically: the acceleration voltage is 120KV, the welding speed is 360mm/min, the defocusing beam current is 30mA, the focusing current is 2030mA, the vertical distance between a gun mouth of a defocusing electron beam and a welding line is 900mm, the scanning swing amplitude of the electron beam in the X direction is 0-4 mm, the scanning swing amplitude of the electron beam in the Y direction is 0mm, the scanning wave pattern is linear, and the scanning frequency is 1000 Hz.
CN202010979943.9A 2020-09-17 2020-09-17 Welding method for vacuum electron beam single-side welding and double-side forming of 316LN-IG stainless steel Active CN112108753B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010979943.9A CN112108753B (en) 2020-09-17 2020-09-17 Welding method for vacuum electron beam single-side welding and double-side forming of 316LN-IG stainless steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010979943.9A CN112108753B (en) 2020-09-17 2020-09-17 Welding method for vacuum electron beam single-side welding and double-side forming of 316LN-IG stainless steel

Publications (2)

Publication Number Publication Date
CN112108753A CN112108753A (en) 2020-12-22
CN112108753B true CN112108753B (en) 2022-04-22

Family

ID=73799821

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010979943.9A Active CN112108753B (en) 2020-09-17 2020-09-17 Welding method for vacuum electron beam single-side welding and double-side forming of 316LN-IG stainless steel

Country Status (1)

Country Link
CN (1) CN112108753B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114043062B (en) * 2021-11-10 2023-05-23 中国航发北京航空材料研究院 Electron beam welding method for ultrahigh-strength gear bearing steel
CN114952004A (en) * 2022-05-18 2022-08-30 华工法利莱切焊系统工程有限公司 Laser welding method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000117470A (en) * 1998-10-15 2000-04-25 Toshiba Corp Welding method using high energy beam welding method of ferritic stainless steel or martensitic stainless steel and gas turbine combustor manufactured by its method
CN104439676A (en) * 2014-11-24 2015-03-25 中国核动力研究设计院 CLF-1 thick steel plate electron beam welding process
CN106392293A (en) * 2016-11-08 2017-02-15 北京星航机电装备有限公司 Vacuum electron beam welding method for refractory alloy
CN106853549A (en) * 2015-12-08 2017-06-16 上海新力动力设备研究所 A kind of electro-beam welding method of thin-walled xenogenesis Maraging steel
CN111299795A (en) * 2020-03-09 2020-06-19 西南交通大学 Dissimilar vacuum electron beam welding method for titanium alloy and stainless steel
KR20200105522A (en) * 2018-02-02 2020-09-07 난징 아이론 앤드 스틸 컴퍼니 리미티드 Manufacturing method of titanium-steel composite plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000117470A (en) * 1998-10-15 2000-04-25 Toshiba Corp Welding method using high energy beam welding method of ferritic stainless steel or martensitic stainless steel and gas turbine combustor manufactured by its method
CN104439676A (en) * 2014-11-24 2015-03-25 中国核动力研究设计院 CLF-1 thick steel plate electron beam welding process
CN106853549A (en) * 2015-12-08 2017-06-16 上海新力动力设备研究所 A kind of electro-beam welding method of thin-walled xenogenesis Maraging steel
CN106392293A (en) * 2016-11-08 2017-02-15 北京星航机电装备有限公司 Vacuum electron beam welding method for refractory alloy
KR20200105522A (en) * 2018-02-02 2020-09-07 난징 아이론 앤드 스틸 컴퍼니 리미티드 Manufacturing method of titanium-steel composite plate
CN111299795A (en) * 2020-03-09 2020-06-19 西南交通大学 Dissimilar vacuum electron beam welding method for titanium alloy and stainless steel

Also Published As

Publication number Publication date
CN112108753A (en) 2020-12-22

Similar Documents

Publication Publication Date Title
CN112108753B (en) Welding method for vacuum electron beam single-side welding and double-side forming of 316LN-IG stainless steel
CN105436688A (en) Vacuum electron beam welding method for variable-thickness ZL114A aluminum alloy
CN110280900B (en) Light beam swinging laser welding method for titanium alloy
CN104439676B (en) CLF-1 steel thick plate electro-beam welding process
CN105414733A (en) Method for welding heterogenous system aluminum alloy through electron beams
CN102500906B (en) Method for welding heterogeneous austenitic stainless steel plates
CN110227879B (en) Vacuum electron beam welding method for hollow oxygen-free copper rod, current lead and nuclear fusion device
CN109365980B (en) Vacuum electron beam welding method applied to nuclear fusion device and vacuum chamber
CN111673219B (en) Welding method for single-side welding and double-side forming of thick-framework T-shaped structure laser oscillation filler wire
CN103785939A (en) Aluminum alloy vacuum electron beam welding method
CN105921872A (en) Electron beam welding method for pipe and pipe sheet in titanium alloy heat exchanger
CN105364326A (en) Magnesium alloy laser-ultrasonic double-side welding method
CN107442939A (en) A kind of method of xenogenesis magnetic steel ultra-narrow seam laser welding
CN110587103A (en) Welding method of ultrahigh-strength steel multi-cavity structure based on stress discrete distribution
Liu et al. Tensile resistance, microstructures of intermetallic compounds, and fracture modes of welded steel/aluminum joints produced using laser lap welding
CN112676691A (en) Electron beam welding method for TA15 and Ti60 dissimilar titanium alloy materials
CN105171240A (en) Lapping full-penetration laser welding method for stainless steel heat exchange plates
CN108436271B (en) Welding method for reducing number of weld pores of laser deep fusion welding
CN112570876B (en) GH4141 nickel-based superalloy vacuum electron beam welding method
CN101890570A (en) Electron-beam welding method for aluminum alloy and steel based on intermediate layer isolation control
CN112091380B (en) Low-activation martensitic steel TIG welding method
CN105364430B (en) The method for laser welding that a kind of thin plate edge joint synchronously rolls
CN110560868A (en) vacuum electron beam welding process for 6-series aluminum alloy sheet
CN113618221B (en) Vacuum electron beam welding method for TA17 titanium alloy plate with thickness of 100mm and titanium alloy plate
CN114589387A (en) Vacuum electron beam welding method for low-activation martensitic steel and nuclear fusion reactor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant