CN109055810A - A kind of preparation method of electrode material copper cobalt chrome-silicon alloy - Google Patents
A kind of preparation method of electrode material copper cobalt chrome-silicon alloy Download PDFInfo
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- CN109055810A CN109055810A CN201810748051.0A CN201810748051A CN109055810A CN 109055810 A CN109055810 A CN 109055810A CN 201810748051 A CN201810748051 A CN 201810748051A CN 109055810 A CN109055810 A CN 109055810A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
A kind of preparation method of electrode material copper cobalt chrome-silicon alloy, in percentage by weight in alloy in percentage by weight, cobalt content 2.0~2.4%, chromium content 0.5-0.6%, silicone content 0.5~0.6%, content of niobium 0.25-0.3%, content of magnesium 0.25-0.3%, nickel content 0.25-0.3%, Theil indices 0.25-0.3%, remaining surplus are copper；The preparation method of alloy is: continuous up-casting-induction heating-is continuously extruded-continuous rolling-induction heating-continuous rolling-timeliness-drawing.
Description
Technical field
The present invention relates to a kind of preparation methods of non-ferrous alloy more particularly to a kind of electrode material copper cobalt chrome-silicon to close
The preparation method of gold.
Background technique
Electric resistance welding is the welding method of kind of efficient pollution-free, is widely used in vehicle, ship, aircraft, household electrical appliances light industrial goods
Manufacturing field.Electrode is the critical component in electric resistance welding equipment, plays a part of to clamp weldment, transmitting pressure and high-power electric current.
When welding steel, electrode will bear the effect of high pressure, high current, and electrode Local Instantaneous temperature rise is up to 400~600 DEG C, it is necessary to
Select electrical and thermal conductivity it is good, with some strength, softening resistance is high, is not easy that and weldment generates alloying and bonding material makes
Electrode.With the high speed development of national economy, processing manufacturing industry scale constantly expands, and electric resistance welding is using increasingly extensive, according to statistics
Steel for electric resistance welding field have accounted for 30% or so of welded structural steel total amount at present, especially in mild steel, galvanized steel plain sheet
In terms of the welding of Mayari, electric resistance welding using more popular, for manufacturing the alloy material of resistance welding electrode
The market demand is increasingly vigorous, and resistance welding electrode is a kind of consumables, currently, having the conjunction of copper chromium system in the electrode that electric resistance welding field uses
Gold, alumina dispersion-strenghtened copper alloy electrode etc..
Summary of the invention
The object of the present invention is to provide a kind of copper cobalt chrome-silicon alloys and preparation method thereof haveing excellent performance, and meet electrode material
Use.
The present invention prepares copper cobalt chrome-silicon alloy in percentage by weight, cobalt content 2.0~2.4%, chromium content 0.5-
0.6%, silicone content 0.5~0.6%, content of niobium 0.25-0.3%, content of magnesium 0.25-0.3%, nickel content 0.25-0.3%, tin
Content 0.25-0.3%, remaining surplus are copper；Cobalt content and the ratio of chromium content, silicone content are 4:1, and chromium content contains with niobium
Amount, content of magnesium, nickel content, Theil indices ratio be 2:1.
The preparation method is that: continuous up-casting-induction heating-is continuously extruded-continuous rolling-induction heating-
Continuous rolling-timeliness-drawing.
(1) continuous up-casting: using power frequency continuous up-casting furnace, launch after Cu-CATH-1 is dried into smelting apparatus, melts
Refining device includes smelting furnace, compartment, holding furnace three parts composition, and wherein melting furnace temperature is 1400-1450 DEG C, keeps the temperature furnace temperature
It is 1350-1400 DEG C, compartment is equipped with online depassing unit, is filled with 99.996% argon into copper liquid by online depassing unit
Gas, and by controlled rotation graphite shaft and rotor, argon gas is pressed into copper liquid and is dispersed as micro-bubble, divides it uniformly
It is dispersed in copper liquid, thus achieve the purpose that degasification, deoxidation, source outlet pressure 0.5MPa, 0.5~1.0Nm of flow3/ h, rotor
Revolving speed is controlled in 150~200r/min, by online depassing unit, the oxygen content in copper liquid is made to be less than 3ppm.
Using copper cobalt intermediate alloy, copper chromium intermediate alloy, copper niobium intermediate alloy, copper magnesium intermediate alloy, copper silicon intermediate alloy,
Cupro-nickel intermediate alloy, copper and tin intermediate alloy are proportionally added in smelting apparatus.
Using traction link seat, continuous up-casting copper bar, copper bar pitch are 1.5~2.0mm, the speed of continuous up-casting in holding furnace
Degree is 500mm/min, stops Lapie and leads as 60%-70%, using fine pith, stops Lapie greatly and leads to improve copper bar surface quality, avoid
Copper bar is broken.Continuous up-casting diameter Ф 20mm, less than 35 DEG C, the cooling of crystallizer follows the cooling circulating water inflow temperature of crystallizer
Ring water inflow and outflow temperature difference is less than 8 DEG C.
The crystallizer that continuous up-casting uses be ceramic material, meanwhile, internal surface of crystallizer chromium plating, chrome layer with a thickness of
0.05~0.2mm.
(2) induction heating: being drawn copper bar by using induction heating apparatus and be heated to 850~950 DEG C, induction heating apparatus point
For two parts, wherein the heating power of first part is 400KW, frequency 2000HZ, copper bar after first part's induction heating
Temperature is 800~850 DEG C；The heating power of second part is 100KW, frequency 4000HZ, copper after first part's induction heating
The temperature of bar is 900~950 DEG C；Induction heating apparatus prevents from aoxidizing using protective atmosphere.
(3) continuously extruded: the high temperature copper bar after induction heating to be sent directly into continuous extruder, continuous extruder revolving speed
For 5-7r/min, continuously extruded flash rate control is 6~8%.
(4) continuous rolling: mill speed 0.15-0.25 meter per second；The general working rate of continuous rolling is 30-80%.
(5) induction heating: the alloy after rolling is heated to 850~950 DEG C using induction heating apparatus, induction heating dress
It sets and is divided into two parts, wherein the heating power of first part is 400KW, frequency 2000HZ, is closed after first part's induction heating
The temperature of gold is 800~850 DEG C；The heating power of second part is 100KW, frequency 4000HZ, first part's induction heating
The temperature of alloy is 900~950 DEG C afterwards；Induction heating apparatus prevents from aoxidizing using protective atmosphere, by the alloy after induction heating
Direct-water-quenching.
(6) continuous rolling: mill speed 0.15-0.25 meter per second；The general working rate of continuous rolling is 30-80%.
(7) timeliness: 450 DEG C -550 DEG C of temperature, time 3-5 hour.
(8) drawing: working modulus 10%-50%.
The tensile strength of the copper cobalt chrome-silicon alloy of above method preparation is greater than 800MPa, and elongation percentage is greater than 5%, and conductivity is big
In 30%IACS, softening temperature is greater than 550 DEG C.
The beneficial effects of the present invention are:
1. realizing serialization, the large-scale production of copper cobalt chrome-silicon alloy using the method for continuous up-casting.
2. being increased using the temperature that the method for induction heating draws copper bar by, and directly continuously squeezed using atmosphere protection
Pressure, is conducive to continuously extruding and molding.Using the method for induction heating will be continuously extruded after alloy direct-water-quenching, play solid solution
Effect.
3. optimizing the ingredient of copper cobalt chrome-silicon alloy, the copper cobalt chrome-silicon alloy property of preparation is excellent.
Specific embodiment
The invention will be further described With reference to embodiment.
The present invention prepares copper cobalt chrome-silicon alloy in percentage by weight, cobalt content 2.0%, chromium content 0.5%, silicone content
0.5%, content of niobium 0.25%, content of magnesium 0.25%, nickel content 0.25%, Theil indices 0.25%, the preparation method is that:
Continuous up-casting-induction heating-is continuously extruded-continuous rolling-induction heating-continuous rolling-timeliness-drawing.
(1) continuous up-casting: using power frequency continuous up-casting furnace, launch after Cu-CATH-1 is dried into smelting apparatus, melts
Refining device includes smelting furnace, compartment, holding furnace three parts composition, and wherein melting furnace temperature is 1400-1450 DEG C, keeps the temperature furnace temperature
It is 1350-1400 DEG C, compartment is equipped with online depassing unit, is filled with 99.996% argon into copper liquid by online depassing unit
Gas, and by controlled rotation graphite shaft and rotor, argon gas is pressed into copper liquid and is dispersed as micro-bubble, divides it uniformly
It is dispersed in copper liquid, thus achieve the purpose that degasification, deoxidation, source outlet pressure 0.5MPa, 0.5~1.0Nm of flow3/ h, rotor
Revolving speed is controlled in 150~200r/min, by online depassing unit, the oxygen content in copper liquid is made to be less than 3ppm.
Smelting furnace is covered using charcoal, and compartment, holding furnace are covered using graphite flakes, while smelting furnace, compartment, holding furnace
It is all made of argon gas and carries out gas shield.
Using copper cobalt intermediate alloy, copper chromium intermediate alloy, copper niobium intermediate alloy, copper magnesium intermediate alloy, copper silicon intermediate alloy,
Cupro-nickel intermediate alloy, copper and tin intermediate alloy are proportionally added in smelting apparatus.
Using traction link seat, continuous up-casting copper bar, copper bar pitch are 1.5~2.0mm, the speed of continuous up-casting in holding furnace
Degree is 500mm/min, stops Lapie and leads as 60%-70%, using fine pith, stops Lapie greatly and leads to improve copper bar surface quality, avoid
Copper bar is broken.Continuous up-casting diameter Ф 20mm, less than 35 DEG C, the cooling of crystallizer follows the cooling circulating water inflow temperature of crystallizer
Ring water inflow and outflow temperature difference is less than 8 DEG C.
The crystallizer that continuous up-casting uses be ceramic material, meanwhile, internal surface of crystallizer chromium plating, chrome layer with a thickness of
0.05~0.2mm.
(2) induction heating: being drawn copper bar by using induction heating apparatus and be heated to 850~950 DEG C, induction heating apparatus point
For two parts, wherein the heating power of first part is 400KW, frequency 2000HZ, copper bar after first part's induction heating
Temperature is 800~850 DEG C；The heating power of second part is 100KW, frequency 4000HZ, copper after first part's induction heating
The temperature of bar is 900~950 DEG C；Induction heating apparatus prevents from aoxidizing using protective atmosphere.
(3) continuously extruded: the high temperature copper bar after induction heating to be sent directly into continuous extruder, continuous extruder revolving speed
For 5-7r/min, continuously extruded flash rate control is 6~8%.
(4) continuous rolling: mill speed 0.15-0.25 meter per second；The general working rate of continuous rolling is 30-80%.
(5) induction heating: the alloy after rolling is heated to 850~950 DEG C using induction heating apparatus, induction heating dress
It sets and is divided into two parts, wherein the heating power of first part is 400KW, frequency 2000HZ, is closed after first part's induction heating
The temperature of gold is 800~850 DEG C；The heating power of second part is 100KW, frequency 4000HZ, first part's induction heating
The temperature of alloy is 900~950 DEG C afterwards；Induction heating apparatus prevents from aoxidizing using protective atmosphere, by the alloy after induction heating
Direct-water-quenching.
(6) continuous rolling: mill speed 0.15-0.25 meter per second；The general working rate of continuous rolling is 30-80%.
(7) timeliness: 450 DEG C -550 DEG C of temperature, time 3-5 hour.
(8) drawing: working modulus 10%-50%.
The tensile strength of the copper cobalt chrome-silicon alloy of above method preparation is greater than 800MPa, and elongation percentage is greater than 5%, and conductivity is big
In 30%IACS, softening temperature is greater than 550 DEG C.
Above-described embodiment is only used for illustrating inventive concept of the invention, rather than the restriction to rights protection of the present invention,
It is all to be made a non-material change to the present invention using this design, protection scope of the present invention should all be fallen into.
Claims (1)
1. a kind of electrode material preparation method of copper cobalt chrome-silicon alloy, it is characterised in that: the copper cobalt chrome-silicon alloy according to
Weight percent meter, cobalt content 2.0~2.4%, chromium content 0.5-0.6%, silicone content 0.5~0.6%, content of niobium 0.25-
0.3%, content of magnesium 0.25-0.3%, nickel content 0.25-0.3%, Theil indices 0.25-0.3%, remaining surplus are copper；Cobalt contains
The ratio of amount and chromium content, silicone content is 4:1, and chromium content and the ratio of content of niobium, content of magnesium, nickel content, Theil indices are 2:1；
The preparation method is: continuous up-casting-induction heating-is continuously extruded-continuous rolling-induction heating-continuous rolling-
Timeliness-drawing:
(1) continuous up-casting: using power frequency continuous up-casting furnace, launch after Cu-CATH-1 is dried into smelting apparatus, melting dress
It sets including smelting furnace, compartment, holding furnace three parts composition, wherein melting furnace temperature is 1400-1450 DEG C, and heat preservation furnace temperature is
1350-1400 DEG C, compartment is equipped with online depassing unit, is filled with 99.996% argon into copper liquid by online depassing unit
Gas, and by controlled rotation graphite shaft and rotor, argon gas is pressed into copper liquid and is dispersed as micro-bubble, divides it uniformly
It is dispersed in copper liquid, thus achieve the purpose that degasification, deoxidation, source outlet pressure 0.5MPa, 0.5~1.0Nm of flow3/ h, rotor
Revolving speed is controlled in 150~200r/min, by online depassing unit, the oxygen content in copper liquid is made to be less than 3ppm；
Using traction link seat, continuous up-casting copper bar, copper bar pitch are 1.5~2.0mm in holding furnace, and the speed of continuous up-casting is
500mm/min stops Lapie and leads as 60%-70%, using fine pith, stops Lapie greatly and leads to improve copper bar surface quality, avoid copper bar
It breaks.Continuous up-casting diameter Ф 20mm, the cooling circulating water inflow temperature of crystallizer is less than 35 DEG C, the cooling circulating water of crystallizer
Inflow and outflow temperature difference is less than 8 DEG C；
The crystallizer that continuous up-casting uses is ceramic material, meanwhile, internal surface of crystallizer chromium plating, chrome layer with a thickness of 0.05~
0.2mm；
(2) induction heating: draw copper bar by using induction heating apparatus and be heated to 850~950 DEG C, induction heating apparatus is divided into two
Part, wherein the heating power of first part is 400KW, frequency 2000HZ, the temperature of copper bar after first part's induction heating
It is 800~850 DEG C；The heating power of second part is 100KW, frequency 4000HZ, copper bar after first part's induction heating
Temperature is 900~950 DEG C；Induction heating apparatus prevents from aoxidizing using protective atmosphere；
(3) continuously extruded: the high temperature copper bar after induction heating to be sent directly into continuous extruder, continuous extruder revolving speed is 5-
7r/min, continuously extruded flash rate control is 6~8%；
(4) continuous rolling: mill speed 0.15-0.25 meter per second；The general working rate of continuous rolling is 30-80%；
(5) induction heating: the alloy after rolling is heated to 850~950 DEG C using induction heating apparatus, induction heating apparatus point
For two parts, wherein the heating power of first part is 400KW, frequency 2000HZ, alloy after first part's induction heating
Temperature is 800~850 DEG C；The heating power of second part is 100KW, frequency 4000HZ, is closed after first part's induction heating
The temperature of gold is 900~950 DEG C；Induction heating apparatus prevents from aoxidizing using protective atmosphere, and the alloy after induction heating is direct
Water quenching；
(6) continuous rolling: mill speed 0.15-0.25 meter per second；The general working rate of continuous rolling is 30-80%；
(7) timeliness: 450 DEG C -550 DEG C of temperature, time 3-5 hour；
(8) drawing: working modulus 10%-50%；
The tensile strength of the copper cobalt chrome-silicon alloy of above method preparation is greater than 800MPa, and elongation percentage is greater than 5%, and conductivity is greater than
30%IACS, softening temperature are greater than 550 DEG C.
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| CN201810748051.0A CN109055810A (en) | 2018-07-10 | 2018-07-10 | A kind of preparation method of electrode material copper cobalt chrome-silicon alloy |
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| CN201810748051.0A CN109055810A (en) | 2018-07-10 | 2018-07-10 | A kind of preparation method of electrode material copper cobalt chrome-silicon alloy |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821416A (en) * | 2007-07-27 | 2010-09-01 | Msi株式会社 | Copper alloy material |
| CN102630251A (en) * | 2009-12-02 | 2012-08-08 | 古河电气工业株式会社 | Copper alloy sheet material having low young's modulus and method for producing same |
| CN103008383A (en) * | 2012-12-17 | 2013-04-03 | 徐高磊 | Production technology for bimetal coating copper strip |
| CN106222477A (en) * | 2016-08-22 | 2016-12-14 | 徐高磊 | A kind of electric automobile charging pile adapter tellurium copper alloy and production technology thereof |
-
2018
- 2018-07-10 CN CN201810748051.0A patent/CN109055810A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821416A (en) * | 2007-07-27 | 2010-09-01 | Msi株式会社 | Copper alloy material |
| CN102630251A (en) * | 2009-12-02 | 2012-08-08 | 古河电气工业株式会社 | Copper alloy sheet material having low young's modulus and method for producing same |
| CN103008383A (en) * | 2012-12-17 | 2013-04-03 | 徐高磊 | Production technology for bimetal coating copper strip |
| CN106222477A (en) * | 2016-08-22 | 2016-12-14 | 徐高磊 | A kind of electric automobile charging pile adapter tellurium copper alloy and production technology thereof |
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