CN109930034A - A kind of welding material and technique between high Mn content copper-manganese damping alloy - Google Patents
A kind of welding material and technique between high Mn content copper-manganese damping alloy Download PDFInfo
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- CN109930034A CN109930034A CN201910293490.1A CN201910293490A CN109930034A CN 109930034 A CN109930034 A CN 109930034A CN 201910293490 A CN201910293490 A CN 201910293490A CN 109930034 A CN109930034 A CN 109930034A
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Abstract
The invention discloses a kind of welding materials and technique between high Mn content copper-manganese damping alloy.By weight percentage, composition of alloy are as follows: Cr:0.8-1.2wt.%, V:0.2-0.4wt.%, Ga:0.1-0.2wt.%, Bi:2.0-3.0wt.%, Ag:0.4-0.6wt.%, In:1.0-1.5wt.%, Cu:10.0-15.0wt.%, surplus are cobalt.This patent provides the novel connecting material that two pieces of copper-manganese high damping alloys can be carried out to welding under conditions of argon arc welding, can solve industry and national defence to the demand scheme of high-end damping alloy vibration and noise reducing.It is contemplated that the successful implementation and industrialization of the material can play facilitation to the development of relevant field while obtaining very big economic value.
Description
Technical field
The present invention relates to technical field of alloy, specifically, being related to a kind of cobalt alloy.
Background technique
Power with the fast development of modern technologies, aircraft, ship, the mechanical components such as vehicle is constantly increasing.Together
When, due to various plant-scale continuous expansions, causing noise and vibration has become one of industry and environment protection field
It is difficult to the problem ignored.Vibration can both cause material that fatigue rupture occurs, and also reduce the reliability of machine work, essence simultaneously
Degree and service life.In ship domain, vibration and noise can make submarine engine noise excessive and oneself will be exposed to enemy
People, while also affecting the normal work of navigator.In electronic imaging field, vibrates and inevitably generates background noise,
Reduce the quality of signal-to-noise ratio and image.For people's life, vibration and noise severely impacts physical and mental health, or even danger
Evil arrives life.As it can be seen that vibration and noise has become one of three big public hazards (atmosphere pollution, water pollution and noise in international coverage
Pollution).
Damping alloy is a kind of new function material that the energy of vibration can be converted to thermal energy, and due to having ideal
Mechanical property can be used as structural material use.Presently, damping alloy is generally divided into aluminium base damping alloy, iron-based damping
Alloy, magnesium-based damping alloy, copper-manganese base damping alloy.Since the damping capacity and frequency relation of copper-manganese damping alloy are little, and
It depends critically upon the amplitude of vibration and the alloy is widely used in the vibration and noise reducing of full rate section.Copper-manganese base high-damping closes
Gold, due to being ideal vibration and noise reducing structural material with high damping capacity and excellent mechanical property.
Make us feeling unfortunately, due to which manganese content is high in copper-manganese damping alloy.Even if in the welding process of argon gas protection
In, also due to forming field trash and forming slag inclusion inside soldering tip.Simultaneously as violent air-breathing, cooling in bath temperature
Crystallization process in, solubility drastically reduces and gas is largely escaped and forms stomata.These defects cause copper-manganese high resistant
The porosity of damping alloy weld region and more slag inclusions, are not only degrading the operating environment of welder, but also the mechanics of connector
Performance drastically reduces.
Since above welding disadvantage makes such material mostly use the connection type of riveting greatly at present.There is presently no reasons
The material for the welding thought is for copper-manganese high damping alloy for being welded to connect.With the industrialization of China's copper-manganese high damping alloy
With the further development of application, it is necessary to solve the welding problem of such alloy within the section time.Namely providing one kind can
For the welding material of copper-manganese high-damping welding, and gained welding structure not only have on metallurgy without slag inclusion and pore-free, also
With satisfactory mechanical property and corrosion resistance.Meanwhile the joint material has the damping capacity close to base material.
Summary of the invention
The purpose of the present invention is to overcome the deficiency in the prior art, provides a kind of between high Mn content copper-manganese damping alloy
Welding material and technique.The material can sufficiently overcome the shortcoming of current material in the welding process, and gained welds
Connector has satisfactory damping capacity, mechanical property and anticorrosion stress-resistant performance.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of welding material and technique between high Mn content copper-manganese damping alloy.By weight percentage, the alloy group
As Cr:0.8-1.2wt.%, V:0.2-0.4wt.%, Ga:0.1-0.2wt.%, Bi:2.0-3.0wt.%, Ag:0.4-
0.6wt.%, In:1.0-1.5wt.%, Cu:10.0-15.0wt.%, surplus are cobalt.
The processing and application method of above-mentioned welding material comprise the following steps that (a) matches alloy according to required ingredient
It postpones, is put into induction furnace and carries out melting, and the melting under argon gas protection is carried out using magnesia or alumina crucible；?
1200-1300 degree keep the temperature 10 minutes using electromagnetic agitation sufficiently by alloy melt after mixing evenly, import cast iron die in carry out
Casting；(b) ingot casting is subjected to cold rolling, the drafts rolled per pass is 5-10%；Intermediate destressing vacuum is carried out after every two passage
Annealing, technique are 800-850 degree 2-3 hours；Above procedure is repeated until thickness of workpiece is 2-3mm.(c) it will be provided with thickness
Wire cutting is carried out into the welding material of required length and width for the plate of 2-3mm；After the arc welding of argon gas protection, weldering
Destressing heat treatment technique is that 400-450 degree is kept for 1.0-1.5 hours in vacuum drying oven afterwards.
Compared with prior art, the invention has the following beneficial effects:
(1) current copper-manganese damping alloy is divided into three types according to the content of manganese, and (content of Mn is greater than high manganese damping alloy
70wt.%), (content of Mn is less than for middle manganese damping alloy (content of Mn is between 40-60wt.%) and low manganese damping alloy
40wt.%).For high manganese damping alloy, violent oxidation is easy to happen in the Mn of the welding process center tap of argon arc welding and is generated
Oxide floats on weld pool surface, hinders the good fusion of welding wire metal and base material.In some powerful welding processes,
It can be formed and be mingled with and be suspended in bath, lead to occur fire check in plumb joint.When copper-manganese damping alloy needs in the design
When carrying out the welded connecting between two pieces of copper-manganese damping alloys, solder wire material performance itself just must be taken into consideration, that is, welding
The matching performance of the welding performance and welding rear joint and base material that are shown in termination process.These performances mainly include mechanical property
It can (strength of joint), physical property (connector damping capacity) and chemical property (connector corrosion resistance).Present patent application protection
Novel high Mn content copper-manganese damping alloy between welding material can overcome these technical problems, be a kind of novel material
Learn solution.
(2) melting range of the material is 1200-1250 degree, can be protected in argon gas after the welding material of preparation into strips
The connection of two pieces of high Mn content copper-manganese high damping alloys is carried out in the environment of shield.That is, to be welded must be two pieces of height
Manganese content copper-manganese high damping alloy.As shown in Figure 1, being the docking of the argon shield arc welding of two pieces of high Mn content copper-manganese damping alloys
Welding.Since the fusing point of high Mn content copper-manganese high damping alloy is generally 1050-1100 degree, thus the weldering of present patent application protection
The surface that connecing material can touch in welding arc is attached in the case where becoming liquid.Meanwhile in the weldering of argon gas protection
Under the conditions of connecing, which has extraordinary wellability to basis material due to melting under the action of electric arc.Not only may be used
To be sufficient filling with two wait connect the hole in workpiece, the high copper-manganese damping alloy of traditional manganese content is also fundamentally prevented and has existed
Oxidation aggravation phenomenon caused by being flowed everywhere after fusing.
(3) for the copper-manganese damping alloy of high Mn content, traditional welding method is the welding material using base material preparation
Carry out the welding under argon gas protection.During the welding process, the melt of welding section is a considerable amount of in addition to that can generate after welding
Outside oxide is mingled with, it also occur that excessive grain is grown up, serious microstructure coarsening occurs and causes connector brittle.Present patent application
The novel high Mn content manganin welding material of protection can overcome the disadvantage of traditional material welding point moulding difference completely.
Due to having carried out composition selection and optimization in materialogy, the molten bath occurred in the welding process can be fast under the protection of argon gas
Speed obtains phase structure into solidification, and causes martensite transfor mation to generate between matrix and martensitic twin due to magnetic transformation
Movable interface.The structure basis of damping is moved and generated during connector stress deformation in these interfaces.This not only to connect
While the tissue of head obtains refinement, the mechanical property that can also maintain connector to a certain extent is unlikely to have apparent drop
It is low.Thus in actual industry and national defense applications, the damping capacity and mechanical property of matrix alloy and connector alloy have been taken into account
Concertedness.
(4) welding material of present patent application protection can show excellent mechanical property and resistance after welding heat treatment
Damping properties.It is not 380- through yield strength when Overheating Treatment under the conditions of the argon protection welding of welding point butt welding
400MPa, tensile strength 520-540MPa, elongation percentage 25-30%, damped coefficient SDC are 30-35%;And through Overheating Treatment
Afterwards, yield strength 420-430MPa, tensile strength 550-580MPa, elongation percentage 30-35%, damped coefficient 40-45%.
Fully achieve the mechanical property and damping capacity similar with base material.
(5) welding point of the material has excellent anticorrosion stress-resistant performance.It is tested in artificial seawater,
Its cracking time is 60-80 days under 180MPa.And under similarity condition, it is welded using high Mn content copper-manganese damping alloy base material
Connector under identical condition cracking time be 4-5 days.Thus from connector for corrosive conditions stability inferior, this patent
The joint material of application has excellent stability in use completely, especially under maritime corrosive environment.In addition, the product
Practicability is wide, and processing smelting process is simple, and production cost is low, is convenient for industrialized large-scale production and practical application.Applying and
It after industrialization, not only can solve industry problems, while can also obtain great market value.
Detailed description of the invention
Fig. 1: the welding point combination of materials mode of present patent application protection, it is desirable that two pieces of base materials to be connected must be high
Manganese content copper-manganese damping alloy.
Specific embodiment
Embodiment 1
A kind of welding material and technique between high Mn content copper-manganese damping alloy.By weight percentage, the alloy group
Become: Cr:0.9wt.%, V:0.2wt.%, Ga:0.1wt.%, Bi:2.4wt.%, Ag:0.4wt.%, In:1.0wt.%, Cu:
10.0wt.%, surplus are cobalt.
The processing and application method of above-mentioned welding material comprise the following steps that (a) matches alloy according to required ingredient
It postpones, is put into induction furnace and carries out melting, and the melting under argon gas protection is carried out using magnesia or alumina crucible；?
1200-1300 degree keep the temperature 10 minutes using electromagnetic agitation sufficiently by alloy melt after mixing evenly, import cast iron die in carry out
Casting；(b) ingot casting is subjected to cold rolling, the drafts rolled per pass is 5-10%；Intermediate destressing vacuum is carried out after every two passage
Annealing, technique are 800-850 degree 2-3 hours；Above procedure is repeated until thickness of workpiece is 2-3mm.(c) it will be provided with thickness
Wire cutting is carried out into the welding material of required length and width for the plate of 2-3mm；After the arc welding of argon gas protection, weldering
Destressing heat treatment technique is that 400-450 degree is kept for 1.0-1.5 hours in vacuum drying oven afterwards.
The fusing point of the material is 1225 degree, after preparation welding material into strips can in the environment of argon gas protection into
The connection of two pieces of copper-manganese high damping alloys of row.The material can overcome the disadvantage of traditional material welding point moulding difference completely.?
While so that joint microstructure refines, the damping capacity of matrix alloy and connector alloy and the collaboration of mechanical property have also been taken into account
Property.The welding material can show excellent mechanical property and damping capacity after welding heat treatment.In welding point butt welding
Argon protection welding under the conditions of, not through yield strength when Overheating Treatment be 380MPa, tensile strength 530MPa, elongation percentage
It is 28%, damped coefficient SDC is 32%;And after Overheating Treatment, yield strength 420MPa, tensile strength 570MPa extend
Rate is 35%, damped coefficient 42%.Fully achieve the mechanical property and damping capacity similar with base material.In addition, the material
Welding point have excellent anticorrosion stress-resistant performance.It is tested in artificial seawater, its cracking time at 180MPa
It is 65 days.And under similarity condition, the connector welded using high Mn content copper-manganese damping alloy base material is under identical condition
Cracking time is 4-5 days.Thus from connector for corrosive conditions stability inferior, the joint material of present patent application has completely
There is excellent stability in use, especially under maritime corrosive environment.
Embodiment 2
A kind of welding material and technique between high Mn content copper-manganese damping alloy.By weight percentage, the alloy group
Become: Cr:1.0wt.%, V:0.4wt.%, Ga:0.2wt.%, Bi:2.8wt.%, Ag:0.5wt.%, In:1.2wt.%, Cu:
12.0wt.%, surplus are cobalt.
The processing and application method of above-mentioned welding material comprise the following steps that (a) matches alloy according to required ingredient
It postpones, is put into induction furnace and carries out melting, and the melting under argon gas protection is carried out using magnesia or alumina crucible；?
1200-1300 degree keep the temperature 10 minutes using electromagnetic agitation sufficiently by alloy melt after mixing evenly, import cast iron die in carry out
Casting；(b) ingot casting is subjected to cold rolling, the drafts rolled per pass is 5-10%；Intermediate destressing vacuum is carried out after every two passage
Annealing, technique are 800-850 degree 2-3 hours；Above procedure is repeated until thickness of workpiece is 2-3mm.(c) it will be provided with thickness
Wire cutting is carried out into the welding material of required length and width for the plate of 2-3mm；After the arc welding of argon gas protection, weldering
Destressing heat treatment technique is that 400-450 degree is kept for 1.0-1.5 hours in vacuum drying oven afterwards.
The fusing point of the material is 1240 degree, after preparation welding material into strips can in the environment of argon gas protection into
The connection of two pieces of copper-manganese high damping alloys of row.The material can overcome the disadvantage of traditional material welding point moulding difference completely.?
While so that joint microstructure refines, the damping capacity of matrix alloy and connector alloy and the collaboration of mechanical property have also been taken into account
Property.The welding material can show excellent mechanical property and damping capacity after welding heat treatment.In welding point butt welding
Argon protection welding under the conditions of, not through yield strength when Overheating Treatment be 390MPa, tensile strength 540MPa, elongation percentage
It is 25%, damped coefficient SDC is 30%;And after Overheating Treatment, yield strength 428MPa, tensile strength 560MPa extend
Rate is 32%, damped coefficient 40%.Fully achieve the mechanical property and damping capacity similar with base material.In addition, the material
Welding point have excellent anticorrosion stress-resistant performance.It is tested in artificial seawater, its cracking time at 180MPa
It is 70 days.And under similarity condition, the connector welded using high Mn content copper-manganese damping alloy base material is under identical condition
Cracking time is 4-5 days.Thus from connector for corrosive conditions stability inferior, the joint material of present patent application has completely
There is excellent stability in use, especially under maritime corrosive environment.
Embodiment 3
A kind of welding material and technique between high Mn content copper-manganese damping alloy.By weight percentage, the alloy group
Become: Cr:1.0wt.%, V:0.3wt.%, Ga:0.1wt.%, Bi:2.5wt.%, Ag:0.5wt.%, In:1.2wt.%, Cu:
12.0wt.%, surplus are cobalt.
The processing and application method of above-mentioned welding material comprise the following steps that (a) matches alloy according to required ingredient
It postpones, is put into induction furnace and carries out melting, and the melting under argon gas protection is carried out using magnesia or alumina crucible；?
1200-1300 degree keep the temperature 10 minutes using electromagnetic agitation sufficiently by alloy melt after mixing evenly, import cast iron die in carry out
Casting；(b) ingot casting is subjected to cold rolling, the drafts rolled per pass is 5-10%；Intermediate destressing vacuum is carried out after every two passage
Annealing, technique are 800-850 degree 2-3 hours；Above procedure is repeated until thickness of workpiece is 2-3mm.(c) it will be provided with thickness
Wire cutting is carried out into the welding material of required length and width for the plate of 2-3mm；After the arc welding of argon gas protection, weldering
Destressing heat treatment technique is that 400-450 degree is kept for 1.0-1.5 hours in vacuum drying oven afterwards.
The fusing point of the material is 1230 degree, after preparation welding material into strips can in the environment of argon gas protection into
The connection of two pieces of copper-manganese high damping alloys of row.The material can overcome the disadvantage of traditional material welding point moulding difference completely.?
While so that joint microstructure refines, the damping capacity of matrix alloy and connector alloy and the collaboration of mechanical property have also been taken into account
Property.The welding material can show excellent mechanical property and damping capacity after welding heat treatment.In welding point butt welding
Argon protection welding under the conditions of, not through yield strength when Overheating Treatment be 390MPa, tensile strength 535MPa, elongation percentage
It is 26%, damped coefficient SDC is 34%;And after Overheating Treatment, yield strength 420MPa, tensile strength 560MPa extend
Rate is 32%, damped coefficient 45%.Fully achieve the mechanical property and damping capacity similar with base material.In addition, the material
Welding point have excellent anticorrosion stress-resistant performance.It is tested in artificial seawater, its cracking time at 180MPa
It is 72 days.And under similarity condition, the connector welded using high Mn content copper-manganese damping alloy base material is under identical condition
Cracking time is 4-5 days.Thus from connector for corrosive conditions stability inferior, the joint material of present patent application has completely
There is excellent stability in use, especially under maritime corrosive environment.
Claims (2)
1. a kind of welding material and technique between high Mn content copper-manganese damping alloy；By weight percentage, the alloy
Group becomes Cr:0.8-1.2wt.%, V:0.2-0.4wt.%, Ga:0.1-0.2wt.%, Bi:2.0-3.0wt.%, Ag:0.4-
0.6wt.%, In:1.0-1.5wt.%, Cu:10.0-15.0wt.%, surplus are cobalt.
2. a kind of welding material and technique, feature between high Mn content copper-manganese damping alloy described in claim 1 exists
In including processing and using step as follows :(a) by alloy according to required ingredient with postponing, it is put into the interior progress melting of induction furnace,
And the melting under argon gas protection is carried out using magnesia or alumina crucible；10 minutes, which are kept the temperature, in 1200-1300 degree utilizes electricity
Magnetic stirring sufficiently by alloy melt after mixing evenly, import cast iron die in cast；(b) ingot casting is subjected to cold rolling, per pass
The drafts of secondary rolling is 5-10%；Intermediate destressing vacuum annealing is carried out after every two passage, technique is that 800-850 degree 2-3 is small
When；Above procedure is repeated until thickness of workpiece is 2-3mm；(c) will be provided with a thickness of 2-3mm plate carry out wire cutting at
The welding material of required length and width；After the arc welding of argon gas protection, postwelding destressing heat treatment technique is vacuum
400-450 degree is kept for 1.0-1.5 hours in furnace.
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| CN201910293490.1A CN109930034A (en) | 2019-04-12 | 2019-04-12 | A kind of welding material and technique between high Mn content copper-manganese damping alloy |
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| CN201910293490.1A CN109930034A (en) | 2019-04-12 | 2019-04-12 | A kind of welding material and technique between high Mn content copper-manganese damping alloy |
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| CN109930034A true CN109930034A (en) | 2019-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074636A (en) * | 2022-07-21 | 2022-09-20 | 北京科技大学 | Preparation method of high-carbon damping vibration-damping steel and smelting and casting device thereof |
-
2019
- 2019-04-12 CN CN201910293490.1A patent/CN109930034A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074636A (en) * | 2022-07-21 | 2022-09-20 | 北京科技大学 | Preparation method of high-carbon damping vibration-damping steel and smelting and casting device thereof |
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Application publication date: 20190625 |