CN106216835A - A kind of laser lap method of attachment of Mo Re alloys foil - Google Patents
A kind of laser lap method of attachment of Mo Re alloys foil Download PDFInfo
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- CN106216835A CN106216835A CN201610704744.0A CN201610704744A CN106216835A CN 106216835 A CN106216835 A CN 106216835A CN 201610704744 A CN201610704744 A CN 201610704744A CN 106216835 A CN106216835 A CN 106216835A
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/32—Bonding taking account of the properties of the material involved
- B23K26/323—Bonding taking account of the properties of the material involved involving parts made of dissimilar metallic material
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
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- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention belongs to Metal Material Welding field, particularly relate to the laser lap method of attachment of a kind of Mo Re alloys thin material.The method uses YAG (Nb3+) NC laser welds, welding condition is: laser energy 15%～19%, speed of welding 20 25mm/min, and pulse frequency 50Hz carries out single welding；Keeping laser beam steady operation in welding process, during whole, inert gas shielding should keep synchronization inflation to carry out, and gas flow controls 15～25L/min；Use the relatively low austenite stainless steel plate of thermal conductivity as liner.Use the present invention, it is possible to achieve effective connection of Mo Re alloys foil, it is thus achieved that the welding point of the defect such as pore-free, flawless, joint quality is stable.And present invention process is simple, cost is relatively low, it is possible to meet Mo Re alloys foil structure Welded Joints quality and intensity makes requirement substantially.
Description
Technical field
The invention belongs to Metal Material Welding field, relate to the welding method of a kind of refractory metal, particularly relate to a kind of molybdenum
The laser lap method of attachment of rhenium alloys thin material.
Background technology
Mo Re alloys has high-temperature creep resistance, low-temperature flexibility and wear-resistant, the corrosion resistance of excellence due to it,
It is widely used in chemical industry, metallurgy, electronics, Aero-Space, nuclear industry and national defense and military fields, such as extreme tight
Under the conditions of Ku use electronic devices and components, radar antenna parts, vacuum melting parts, thermocouple and nuclear reactor for space heat from
Sub-exchanger part etc..In Mo Re alloys especially with the combination property of Mo50-Re50 alloy more at present, its room temperature tensile intensity is high
In 1000MPa, often it is prepared as foil or silk material uses.And during using, according to current material forming technique,
The welding research of Mo Re alloys is essential, but the high-melting-point that Mo Re alloys has (about 2500 DEG C) characteristic has a strong impact on its shape
Become excellent welding point, and then hinder its range of application.
The research of Mo Re alloys solder technology is the most fewer at present, and main employing welding method includes electron beam weldering, laser
Weldering, resistance spot welding, soldering and friction welding (FW) etc..The welding being directed to Mo Re alloys foil (thickness is less than 0.2mm) only has pricker
Weldering and two kinds of techniques of resistance electric welding, Mo Re alloys foil easily produces the phenomenon burnt in high energy welding method, and then
Cannot realize effectively connecting.Simultaneously because in the welding processes such as resistance spot welding, Laser Welding, electron beam weldering, molybdenum-rhenium can be caused to close
Gold is inhaled C, O, N forming component segregation, thermal stress and causes crackle to exist, and forms pore sometimes, all can reduce the mechanics of joint
Performance.
For Mo Re alloys welds, compared to soldering processes, high energy welding method remains the high mechanical property of acquisition
The more suitably method of energy joint.And for Mo Re alloys foil (thickness is less than 0.2mm), ensureing that foil does not burn premise
Under, it is achieved effective connection of foil, and the generation that can be prevented effectively from crackle, pore etc. is most important.Relevant molybdenum-rhenium foil
Welding only has the research in terms of resistance spot welding process, the most not yet sees Laser Welding or the electron beam weldering aspect of Mo Re alloys foil
Research or report.
Summary of the invention
The present invention is to make up refractory metal Mo Re alloys foil welding aspect the deficiencies in the prior art, it is provided that a kind of
Use quick, the Joining Technology method of low-energy laser overlap joint, it is achieved effective connection of Mo Re alloys foil, it is thus achieved that excellent molybdenum
The lap joint of rhenium alloys.
The present invention proposes the method for attachment of the laser lap of a kind of Mo Re alloys foil, comprises the following steps and realizes:
(1) Mo Re alloys foil surface preweld cleaning；
(2) Mo Re alloys foil overlap joint is fixing and assembles；
(3) before weldering, logical noble gas carries out gas shield to overlap joint bonding pad；
(4) YAG (Nb is used3+) NC laser welds, welding condition is: laser energy 15%～19%,
Speed of welding 20-25mm/min, pulse frequency 50Hz, carry out single welding；Welding process keeps laser beam steady operation, whole
During individual, inert gas shielding should keep synchronization inflation to carry out, and gas flow controls 15～25L/min；Use thermal conductivity relatively
Low austenite stainless steel plate is as liner；
(5) weld rear welded piece to be placed in the box drying oven of 400 DEG C, furnace cooling, be cooled to room temperature
Rear taking-up workpiece.
In step (1), preweld cleaning refers to remove greasy dirt and the oxide-film on Mo Re alloys surface so that it is surface is the brightest and the cleanest
With without any impurity, and clean be dried, emphasis cleaning overlap joint land near.The method for cleaning on Mo Re alloys surface is: use
1200# sand paper is by clean for the polishing of effective for Mo Re alloys foil overlap surface, and non-overlap uses 1000# sand paper to polish,
It is all made to spill metallic luster；Then grinding process sample is placed with in the glass container of acetone, carries out at a temperature of 40 DEG C
Ultrasonic waves for cleaning 25min, then carries out secondary cleaning with ethanol and dries up.
In step (2), Mo Re alloys foil overlap joint is fixing and assembling all uses prior art, i.e. has at Mo Re alloys foil
Effect overlap coating common metal bonding glue, then uses miniature stationary fixture effectively to be fixed at lap joint two ends.
In described step (3), logical noble gas Ar gas is protected, and is by flow is 15～25L/min 99.9%
Ar, by the most lower 45 ° of protections of blowing in gas nozzle synchronous laser processing district, prevents in air C, N, O etc. to Mo Re alloys foil
Intrusion in laser lap welding process, and then cause segregation, embrittlement and cause the illeffectss such as pore.Environment temperature during welding
Degree is maintained at 25～30 DEG C.
In described step (4), using the YAG laser of peak power 500W, during welding, laser energy represents power
Percentage ratio.By adjusting the percentage of laser energy of the fixing welding every time of laser control panel.During laser welding, most important
Parameter is laser energy, if the current present invention to obtain optimal welding point, it is necessary to control within 15%～19%,
During less than this scope, the Mo Re alloys overlap energy of overlap joint is not enough, and the not up to fusing point of metal will not form metallurgical binding；
Higher than this scope, although high-energy promotes metal molten, but can transition melt, cause the direct fusing of overlap metal, the most not
Metallurgical binding (effectively welding) can be formed.Speed of welding should be not too low, and too low meeting causes energy to concentrate on the metallic bone district time
Longer, the energy causing fusing, too fast meeting to cause overlap to obtain is not enough.The welded piece back side does not use cooling slide block or cooling
Water system is able to as overlapping the high temperature hold time that weld zone provides certain, it is to avoid promote joint to produce soon due to heat conduction
Crackle；Use austenite stainless steel sleeve that the heat of weld zone significantly more efficient can be delayed compared with Steel Work platform to pass to,
Promote effective connection in weld district.During welding, gas flow controls to be affected by routine at 15～25L/min, aspects
The restriction of Ar storage pressure valve, is additionally that this scope can make gas both ensure to supply continuously, can reduce again reserving gas pressure
Excessive may be on the impact of weld zone metal.
In described step (5), postwelding puts the workpiece in rapidly in 400 DEG C of box drying ovens, and one is able to avoid weldering
Connect two subintrusion (protect bad in the case of, may invade on a small quantity in welding process) of district ambient gas C, N, O；Two is to play to prolong
The rate of cooling of slow weld zone, it is to avoid crack；Three are able to promote not volatilizing in laser beam welding of part
Metal bonding glue volatilize further, it is to avoid pollute weld metal.
Use the laser lap method of attachment of the Mo Re alloys foil of present invention proposition, it is possible to achieve Mo Re alloys foil
Effectively connect, it is thus achieved that the welding point of the defect such as pore-free, flawless, joint quality is stable.The Mo Re alloys that the present invention proposes
The welding method of foil has that technique is simple, cost is relatively low, facilitate implementation and quickly connect popularization, it is possible to meet Mo Re alloys foil
Structure Welded Joints quality and intensity substantially make requirement.
Detailed description of the invention
Below by the embodiment of indefiniteness, the present invention is further illustrated
Embodiment 1
The present embodiment is with Mo50-Re50 alloy foil as welded piece, foil a size of 8mm × 40mm, thickness
0.12mm, overlap a size of 8mm × 5mm.
Concrete Mo50-Re50 alloy foil laser lap welding procedure step is as follows:
(1) will use sand papering at Mo50-Re50 alloy foil overlap 8mm × 5mm, other non-overlaps also to be carried out
Polishing, makes overlapping regions surface spill metallic luster, and uses ultrasonic washing instrument to be carried out welded piece.Concrete grammar
For: with 1200# sand paper by clean for the polishing of effective for Mo Re alloys foil overlap surface, non-overlap uses 1000# sand paper to carry out
Polishing, all makes it spill metallic luster；Then grinding process sample is placed with in the glass container of acetone, at a temperature of 40 DEG C
Carry out ultrasonic waves for cleaning 25min, then carry out secondary cleaning with ethanol and dry up.
(2) common metal bonding glue is used to be fixed by Mo Re alloys overlap and effectively assemble, to be welded.
(3) using noble gas Ar gas to be soldered district by outgassing nozzle protection before weldering, during welding, ambient temperature is maintained at
25 DEG C～30 DEG C.By flow is 15～25L/min 99.9% Ar by the most lower 45 ° of gas nozzle synchronous laser processing district
Angle is blown and is protected.
(4) YAG (Nb is used3+) NC laser welds.Welding condition is: laser energy 15% (power
75W), speed of welding 25mm/min, pulse frequency 50Hz, carry out single welding.
(5) in welding process keep laser beam steady operation, during whole Ar gas shielded should keep synchronization inflate into
OK, gas flow controls 15～25L/min；Use the relatively low austenite stainless steel plate of thermal conductivity as liner.
(6) after welding, welded piece is placed on temperature and has been held in the box drying oven of 400 DEG C, close baking oven
Power supply, makes welding workpiece furnace cooling, can take out workpiece after being cooled to room temperature from baking oven.
Mo Re alloys (Mo50-Re50) the laser lap joint using said welding method to obtain shapes good, through weldering
Seam visual examination and metallography microscope sem observation do not find the microdefect such as crackle, pore, mechanical properties up to 574MPa,
Result of the test is shown in Table 1.Meet connected workpiece uses requirement substantially.
Table 1 Mo Re alloys laser lap joint and mother metal test for tensile strength result
Embodiment 2
The present embodiment is with Mo50-Re50 alloy foil as welded piece, foil a size of 6mm × 40mm, thickness
0.12mm, overlap a size of 6mm × 5mm.
Concrete Mo50-Re50 alloy foil laser lap welding procedure step is as follows:
(1) will use sand papering at Mo50-Re50 alloy foil overlap 6mm × 5mm, other non-overlaps also to be carried out
Polishing, makes overlapping regions surface spill metallic luster, and uses ultrasonic washing instrument to be carried out welded piece.Concrete grammar
For: with 1200# sand paper by clean for the polishing of effective for Mo Re alloys foil overlap surface, non-overlap uses 1000# sand paper to carry out
Polishing, all makes it spill metallic luster；Then grinding process sample is placed with in the glass container of acetone, at a temperature of 40 DEG C
Carry out ultrasonic waves for cleaning 25min, then carry out secondary cleaning with ethanol and dry up.
(2) common metal bonding glue is used to be fixed by Mo Re alloys overlap and effectively assemble, to be welded.
(3) using noble gas Ar gas to be soldered district by outgassing nozzle protection before weldering, during welding, ambient temperature is maintained at
25 DEG C～30 DEG C.By flow is 15～25L/min 99.9% Ar by the most lower 45 ° of gas nozzle synchronous laser processing district
Angle is blown and is protected.
(4) YAG (Nb is used3+) NC laser welds.Welding condition is: laser energy 17% (power
85W), speed of welding 25mm/min, pulse frequency 50Hz, carry out single welding.
(5) in welding process keep laser beam steady operation, during whole Ar gas shielded should keep synchronization inflate into
OK, gas flow controls 15～25L/min；Use the relatively low austenite stainless steel plate of thermal conductivity as liner.
(6) after welding, welded piece is placed on temperature and has been held in the box drying oven of 400 DEG C, close baking oven
Power supply, makes welding workpiece furnace cooling, can take out workpiece after being cooled to room temperature from baking oven.
Mo Re alloys (Mo50-Re50) the laser lap joint using said welding method to obtain shapes good, through weldering
Seam visual examination and metallography microscope sem observation do not find the microdefect such as crackle, pore, mechanical properties up to 523MPa,
Result of the test is shown in Table 2.Meet connected workpiece uses requirement substantially.
Table 2 Mo Re alloys laser lap joint and mother metal test for tensile strength result
Embodiment 3
The present embodiment is with Mo50-Re50 alloy foil as welded piece, foil a size of 6.5mm × 40mm, thickness
0.12mm, overlap a size of 6.5mm × 5mm.
Concrete Mo50-Re50 alloy foil laser lap welding procedure step is as follows:
(1) will use sand papering at Mo50-Re50 alloy foil overlap 6.5mm × 5mm, other non-overlaps also to enter
Row polishing, makes overlapping regions surface spill metallic luster, and uses ultrasonic washing instrument to be carried out welded piece.Concrete side
Method is: with 1200# sand paper by clean for the polishing of effective for Mo Re alloys foil overlap surface, non-overlap uses 1000# sand paper to enter
Row polishing, all makes it spill metallic luster；Then grinding process sample is placed with in the glass container of acetone, 40 DEG C of temperature
Under carry out ultrasonic waves for cleaning 25min, then carry out secondary cleaning with ethanol and dry up.
(2) common metal bonding glue is used to be fixed by Mo Re alloys overlap and effectively assemble, to be welded.
(3) using noble gas Ar gas to be soldered district by outgassing nozzle protection before weldering, during welding, ambient temperature is maintained at
25 DEG C～30 DEG C.By flow is 15～25L/min 99.9% Ar by the most lower 45 ° of gas nozzle synchronous laser processing district
Angle is blown and is protected.
(4) YAG (Nb is used3+) NC laser welds.Welding condition is: laser energy 19% (power
95W), speed of welding 25mm/min, pulse frequency 50Hz, carry out single welding.
(5) in welding process keep laser beam steady operation, during whole Ar gas shielded should keep synchronization inflate into
OK, gas flow controls 15～25L/min；Use the relatively low austenite stainless steel plate of thermal conductivity as liner.
(6) after welding, welded piece is placed on temperature and has been held in the box drying oven of 400 DEG C, close baking oven
Power supply, makes welding workpiece furnace cooling, can take out workpiece after being cooled to room temperature from baking oven.
Mo Re alloys (Mo50-Re50) the laser lap joint using said welding method to obtain shapes good, through weldering
Seam visual examination and metallography microscope sem observation do not find the microdefect such as crackle, pore, mechanical properties up to 496MPa,
Result of the test is shown in Table 3.Meet connected workpiece uses requirement substantially.
Table 3 Mo Re alloys laser lap joint and mother metal test for tensile strength result
Embodiment 4
The present embodiment is with Mo50-Re50 alloy foil as welded piece, foil a size of 8mm × 40mm, thickness
0.18mm, overlap a size of 7mm × 5mm.
Concrete Mo50-Re50 alloy foil laser lap welding procedure step is as follows:
(1) will use sand papering at Mo50-Re50 alloy foil overlap 7mm × 5mm, other non-overlaps also to be carried out
Polishing, makes overlapping regions surface spill metallic luster, and uses ultrasonic washing instrument to be carried out welded piece.Concrete grammar
For: with 1200# sand paper by clean for the polishing of effective for Mo Re alloys foil overlap surface, non-overlap uses 1000# sand paper to carry out
Polishing, all makes it spill metallic luster；Then grinding process sample is placed with in the glass container of acetone, at a temperature of 40 DEG C
Carry out ultrasonic waves for cleaning 25min, then carry out secondary cleaning with ethanol and dry up.
(2) common metal bonding glue is used to be fixed by Mo Re alloys overlap and effectively assemble, to be welded.
(3) using noble gas Ar gas to be soldered district by outgassing nozzle protection before weldering, during welding, ambient temperature is maintained at
25 DEG C～30 DEG C.By flow is 15～25L/min 99.9% Ar by the most lower 45 ° of gas nozzle synchronous laser processing district
Angle is blown and is protected.
(4) YAG (Nb is used3+) NC laser welds.Welding condition is: laser energy 16% (power
80W), speed of welding 23mm/min, pulse frequency 50Hz, carry out single welding.
(5) in welding process keep laser beam steady operation, during whole Ar gas shielded should keep synchronization inflate into
OK, gas flow controls 15～25L/min；Use the relatively low austenite stainless steel plate of thermal conductivity as liner.
(6) after welding, welded piece is placed on temperature and has been held in the box drying oven of 400 DEG C, close baking oven
Power supply, makes welding workpiece furnace cooling, can take out workpiece after being cooled to room temperature from baking oven.
Mo Re alloys (Mo50-Re50) the laser lap joint using said welding method to obtain shapes good, through weldering
Seam visual examination and metallography microscope sem observation do not find the microdefect such as crackle, pore, due to the increase of thickness of slab, cause it to take
Connecing laser join domain narrower, affect its tensile property, mechanical properties is shown in Table 4 up to 427MPa, result of the test.Basic energy
Enough meet it and use requirement.
Table 4 Mo Re alloys laser lap joint and mother metal test for tensile strength result
Embodiment 5
The present embodiment is with Mo50-Re50 alloy foil as welded piece, foil a size of 8mm × 40mm, thickness
0.18mm, overlap a size of 7mm × 5mm.
Concrete Mo50-Re50 alloy foil laser lap welding procedure step is as follows:
(1) will use sand papering at Mo50-Re50 alloy foil overlap 7mm × 5mm, other non-overlaps also to be carried out
Polishing, makes overlapping regions surface spill metallic luster, and uses ultrasonic washing instrument to be carried out welded piece.Concrete grammar
For: with 1200# sand paper by clean for the polishing of effective for Mo Re alloys foil overlap surface, non-overlap uses 1000# sand paper to carry out
Polishing, all makes it spill metallic luster；Then grinding process sample is placed with in the glass container of acetone, at a temperature of 40 DEG C
Carry out ultrasonic waves for cleaning 25min, then carry out secondary cleaning with ethanol and dry up.
(2) common metal bonding glue is used to be fixed by Mo Re alloys overlap and effectively assemble, to be welded.
(3) using noble gas Ar gas to be soldered district by outgassing nozzle protection before weldering, during welding, ambient temperature is maintained at
25 DEG C～30 DEG C.By flow is 15～25L/min 99.9% Ar by the most lower 45 ° of gas nozzle synchronous laser processing district
Angle is blown and is protected.
(4) YAG (Nb is used3+) NC laser welds.Welding condition is: laser energy 18% (power
90W), speed of welding 20mm/min, pulse frequency 50Hz, carry out single welding.
(5) in welding process keep laser beam steady operation, during whole Ar gas shielded should keep synchronization inflate into
OK, gas flow controls 15～25L/min；Use the relatively low austenite stainless steel plate of thermal conductivity as liner.
(6) after welding, welded piece is placed on temperature and has been held in the box drying oven of 400 DEG C, close baking oven
Power supply, makes welding workpiece furnace cooling, can take out workpiece after being cooled to room temperature from baking oven.
Mo Re alloys (Mo50-Re50) the laser lap joint using said welding method to obtain shapes good, through weldering
Seam visual examination and metallography microscope sem observation do not find the microdefect such as crackle, pore, compare example 4 and improve energy, its
Overlap joint laser bonding pad width has increased, and mechanical properties is shown in Table 5 up to 455MPa, result of the test.Substantially disclosure satisfy that
It uses requirement.
Table 5 Mo Re alloys laser lap joint and mother metal test for tensile strength result
Above-described embodiment is used only as the description of the invention, not limitation ot it.
Claims (3)
1. a laser lap method of attachment for Mo Re alloys foil, is characterized in that, comprise the following steps that
(1) Mo Re alloys foil surface preweld cleaning；
(2) Mo Re alloys foil overlap joint is fixing and assembles；
(3) before weldering, logical noble gas carries out gas shield to overlap joint bonding pad；
(4) YAG (Nb is used3+) NC laser welds, welding condition is: laser energy 15%～19%, welding
Speed 20-25mm/min, pulse frequency 50Hz, carry out single welding；Welding process keeps laser beam steady operation, in whole mistake
In journey, inert gas shielding should keep synchronization inflation to carry out, and gas flow controls 15～25L/min；Use austenitic stainless steel
Plate is as liner；
(5) welded rear welded piece to be placed in the box drying oven of 400 DEG C, furnace cooling, taken after being cooled to room temperature
Go out workpiece.
The most according to claim 1, the laser lap method of attachment of Mo Re alloys foil, is characterized in that, in described step (1),
The method for cleaning on Mo Re alloys surface is: with 1200# sand paper by clean for the polishing of effective for Mo Re alloys foil overlap surface, do not take
Meeting district uses 1000# sand paper to polish, and all makes it spill metallic luster；Then grinding process sample is placed with the glass of acetone
In glass container, at a temperature of 40 DEG C, carry out ultrasonic waves for cleaning 25min, then carry out secondary cleaning with ethanol and dry up.
The most according to claim 1, the laser lap method of attachment of Mo Re alloys foil, is characterized in that: in described step (3),
Logical noble gas Ar gas is protected, by flow is 15～25L/min 99.9% Ar by gas nozzle synchronous laser
Processing district is tiltedly descended 45° angle degree to blow and is protected.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106944741A (en) * | 2017-04-26 | 2017-07-14 | 西安交通大学 | Add the microalloying method that Zr improves molybdenum and molybdenum alloy arc-seam weld obdurability |
| CN107009025A (en) * | 2017-04-26 | 2017-08-04 | 西安交通大学 | A kind of microalloying method for improving molybdenum and molybdenum alloy arc-seam weld obdurability |
| CN107008985A (en) * | 2017-04-26 | 2017-08-04 | 西安交通大学 | A kind of molybdenum alloy fusion welding method based on microalloying with synchronous parasitic soldering |
| CN107931806A (en) * | 2017-12-26 | 2018-04-20 | 山东建筑大学 | A kind of Mo Re alloys foil micro-plasma arc welding connects method |
| CN108188521A (en) * | 2018-01-25 | 2018-06-22 | 山东建筑大学 | A kind of high-frequency induction heating method for welding of Mo Re alloys foil |
| CN112975101A (en) * | 2019-12-13 | 2021-06-18 | 安泰天龙钨钼科技有限公司 | Method for diffusion welding of steel by molybdenum-rhenium alloy |
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| CN106944741A (en) * | 2017-04-26 | 2017-07-14 | 西安交通大学 | Add the microalloying method that Zr improves molybdenum and molybdenum alloy arc-seam weld obdurability |
| CN107009025A (en) * | 2017-04-26 | 2017-08-04 | 西安交通大学 | A kind of microalloying method for improving molybdenum and molybdenum alloy arc-seam weld obdurability |
| CN107008985A (en) * | 2017-04-26 | 2017-08-04 | 西安交通大学 | A kind of molybdenum alloy fusion welding method based on microalloying with synchronous parasitic soldering |
| CN107009025B (en) * | 2017-04-26 | 2020-01-14 | 西安交通大学 | Micro-alloying method for improving toughness of molybdenum and molybdenum alloy fusion welding seam |
| CN107008985B (en) * | 2017-04-26 | 2020-03-31 | 西安交通大学 | Molybdenum alloy fusion welding method based on micro-alloying and synchronous parasitic brazing |
| CN107931806A (en) * | 2017-12-26 | 2018-04-20 | 山东建筑大学 | A kind of Mo Re alloys foil micro-plasma arc welding connects method |
| CN107931806B (en) * | 2017-12-26 | 2020-09-08 | 山东建筑大学 | Micro-plasma arc welding method for molybdenum-rhenium alloy foil |
| CN108188521A (en) * | 2018-01-25 | 2018-06-22 | 山东建筑大学 | A kind of high-frequency induction heating method for welding of Mo Re alloys foil |
| CN108188521B (en) * | 2018-01-25 | 2020-10-02 | 山东建筑大学 | High-frequency induction heating brazing method for molybdenum-rhenium alloy foil |
| CN112975101A (en) * | 2019-12-13 | 2021-06-18 | 安泰天龙钨钼科技有限公司 | Method for diffusion welding of steel by molybdenum-rhenium alloy |
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