CN106756212A - The method that continuous casting even squeezes production precipitation strength type high-strength copper evanohm - Google Patents
The method that continuous casting even squeezes production precipitation strength type high-strength copper evanohm Download PDFInfo
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- CN106756212A CN106756212A CN201710012956.7A CN201710012956A CN106756212A CN 106756212 A CN106756212 A CN 106756212A CN 201710012956 A CN201710012956 A CN 201710012956A CN 106756212 A CN106756212 A CN 106756212A
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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
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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
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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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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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
- C22F1/08—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
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Extrusion Of Metal (AREA)
Abstract
A kind of method that production precipitation strength type high-strength copper evanohm is even squeezed the present invention relates to continuous casting, copper alloy bar is molded using horizontal continuous-casting method, by passing through continuously extruded after on-line heating solid solution, it is directly produced out blank, then by cold rolling and Ageing Treatment, performance is can be obtained by after finishing and size meets desired product.The present invention produces high-performance copper chromium-zirconium alloy material using continuous extruding technology, its production process has obtained a certain degree of simplification, the operations such as the milling face of eliminating, hot rolling cogging and breaking down, reduce middle mill train, business equipment investment is reduced, energy resource consumption reduction, production efficiency and finished product rate are improved, and comply fully with the energy-saving and emission-reduction that Sustainable Development of Enterprises is followed and the target for efficiently producing.
Description
Technical field
The present invention relates to a kind of production method of precipitation strength type copper alloy with high strength and high conductivity material, particularly a kind of continuous casting connects
Squeeze production high-strength copper chromium alloy material.
Background technology
Precipitation strength is that super saturated solid solution alloy is carried out into isothermal holding at a certain temperature higher than room temperature, so that molten
Matter atom precipitation from supersaturated solid solution is separated out, and the Second Phase Particle of small and dispersed distribution, the method are formed in Copper substrate
Can not only increase substantially the intensity of copper alloy, and very little is damaged to alloy electrical conductivity, be that to prepare copper alloy with high strength and high conductivity normal
One of intensifying method, wherein Cu-Cr-Zr are typical precipitation strength type copper alloys.
The topmost feature of precipitation strength copper alloy is the equilirbium solid solubility relevant with temperature.Obtain precipitation-hardening reaction
Optimum condition, it is necessary first to carry out solution treatment to alloy, produce a supersaturated solid solution at room temperature, added in copper
The alloying elements such as precipitation strength effect strong Cr, Zr, heat alloy at sufficiently high temperature, with sufficiently fast cooling velocity
The solute in solid solution is kept, the purpose of solid solution is reached；Afterwards, then by deformation strengthening and the method for ageing strengthening combination carry
The performance of precipitation strength type copper alloy high.
Traditional precipitation strength copper alloy processing method is three-stage, i.e. melting ingot casting --- hot-working --- cold working,
Wherein hot-working has hot extrusion, hot rolling, hot forging etc., and these operations cause high energy consumption, pollution environment, reduce yield rate, increase production
Cost and equipment investment.Therefore, the emphasis innovation direction of Chinese copper processing industry is short route, serialization, energy-saving and environmental protection, low throwing
Enter, low cost, continuous extrusion production meets requirements above just, is the direction of copper processing industry emphasis innovation.
Patent（Application number 200810018995.9）Propose using continuous up-casting add it is continuously extruded by the way of to be molded precipitation strong
Change type copper-iron alloy C19200 and C19400, by the processing method of traditional copper alloy three-stage, i.e. melting ingot casting --- heat adds
Three sections of work --- cold working is reduced to melting up casting and continuously extruded two sections.Using deforming heating during continuously extruded,
Copper alloy is heated to 550-660 DEG C, so as to reach the purpose of solid solution and annealing.
But this short route formula processing mode is to precipitation strength type chromiumcopper and does not apply to, one is continuously extruded mistake
Deform the 550-660 DEG C of solid solubility temperature far below chromiumcopper of high temperature of generation in journey（Conventional 900-966 DEG C of solid solubility temperature）, close
Gold element does not have complete solid solution, cannot just obtain preferable performance；Two is continuous extrusion deformation process less than 1min, well below
Conventional 45min-1h solution times.Composition cannot just not play the effect of precipitation strength for solid solution, and the alloy property after shaping is remote
Less than traditional processing method.
The major defect of precipitation strength type copper alloy conventional production methods is to cause high energy consumption, pollution manufacturing process more
Environment, increase production cost and equipment investment, and milling face operation causes a considerable amount of raw material to be removed, and reduces finished product
Rate, production cost is also high.And the continuously extruded forming method of short route then excessively simplifies, eliminate topmost solid solution and quench
Burning hot treatment process, causes the material property reduction after shaping.
The content of the invention
In order to overcome drawbacks described above, the present invention to combine traditional diamond-making technique and Short flow method, there is provided a kind of continuous casting connects
The method for squeezing production precipitation strength type high-strength copper evanohm, the method is molded copper alloy bar using horizontal continuous-casting, passes through
It is directly produced out close to the blank for finally requiring shape, then through supercooling by continuously extruded again after on-line heating solution hardening
Roll and Ageing Treatment, performance is can be obtained by after finishing and size is satisfied by the Cu alloy material of requirement.
The technical proposal of the invention is realized in this way：A kind of continuous casting even squeezes production precipitation strength type high-strength copper evanohm
Method, its concrete technology step is as follows：
Step 1：Dispensing
Dispensing is carried out according to copper-chromium-zirconium alloy material chemical composition, wherein：Chromium content be 0.3 ~ 1.5wt%, zirconium content be 0.03 ~
0.1 wt%, remaining is copper content；
Step 2：Horizontal continuous-casting produces corson alloy
Alloy melting temp is controlled at 1200-1300 DEG C, molten surface is covered with the charcoal or carbon black of drying, then at 1250 DEG C
Insulation, hauling speed used is 10-50mm/s, and the copper alloy shank diameter that casting is obtained is 23mm；
Step 3：On-line solution Quenching Treatment
The copper alloy bar that horizontal continuous-casting is produced is carried out into solution treatment, solid solution temperature is 900 DEG C, mode of heating selection
Sensing heating or continuous annealing stove heat, process time 40min, quenching use water-spraying control；
Step 4：Continuously extruding and molding
Bar material is sent into by the good copper alloy bar material of solution treatment by the bar material entrance of extruder and carries oxide skin removal device
Continuous extruder in, aoxidized by oxide skin removal device and removed the peel, then control extrusion speed for 1-3m/min extrusion formings；
Step 5：Cold rolling and Ageing Treatment
Copper alloy made-up belt after continuously extruding and molding is carried out into cold-rolling deformation 2 times, each cold rolling reduction is 20-50%, twice
Artificial aging treatment, 450 DEG C of aging temp, time 2h are carried out between cold rolling shaping.
Step 6：Finishing
Copper alloy made-up belt after cold rolling and Ageing Treatment is carried out into finishing deformation, finishing rolling step is completed, performance is obtained and size is full
The blaster fuse frame material that foot is required.
The beneficial effects of the invention are as follows：High-performance copper chromium-zirconium alloy material is produced using continuous extruding technology, it was produced
Journey has obtained a certain degree of simplification, eliminates the operations such as milling face, hot rolling cogging and breaking down, reduces middle mill train, and enterprise sets
Standby investment is reduced, energy resource consumption reduction, and production efficiency and finished product rate are improved, comply fully with Sustainable Development of Enterprises and abide by
The energy-saving and emission-reduction for following and the target for efficiently producing.
Brief description of the drawings
Fig. 1 is that copper-chromium-zirconium alloy material continuous casting of the invention even squeezes production technological process.
Specific embodiment
Explanation is further explained to the present invention with reference to specific embodiment, it will help to further reason of the invention
Solution, protection scope of the present invention is not limited to the examples, and protection scope of the present invention is defined by the claims.
As shown in figure 1, copper-chromium-zirconium alloy material continuous casting of the invention even squeezes production technology：
（1）Horizontal continuous-casting produces corson alloy
The chemical composition of alloy is：0.3 ~ 1.5wt% of chromium content, the wt% of zirconium content 0.03 ~ 0.1, copper surplus.With high-quality copper as former
Material, alloy is added in intermediate alloy form.Alloy melting temp is controlled at 1200-1300 DEG C, and liquation is covered with the charcoal of drying
Surface, then in 1250 DEG C of insulations, hauling speed used is 10-50mm/s, and the copper alloy shank diameter that casting is obtained is 23mm.
（2）On-line solution Quenching Treatment
The copper alloy bar that horizontal continuous-casting is produced is carried out into solution treatment, solid solution temperature is 900 DEG C, mode of heating can be with
Selection sensing heating or continuous annealing stove heat, process time 40min, quenching use water-spraying control.
（3）Continuously extruding and molding
Bar material is sent into by the good copper alloy bar material of solution treatment by the bar material entrance of extruder and carries oxide skin removal device
Continuous extruder in, aoxidized by oxide skin removal device and removed the peel, then control extrusion speed for 1-3m/min extrusion formings.
（4）Cold rolling and Ageing Treatment
Copper alloy made-up belt after continuously extruding and molding is carried out into cold-rolling deformation 2 times, each cold rolling reduction is 20-50%, twice
Artificial aging treatment, 450 DEG C of aging temp, time 2h are carried out between cold rolling shaping.
（5）Finishing
Product finally carries out finishing deformation, completes finishing rolling step, and product thickness specification reaches finished product requirement.
Claims (1)
1. a kind of method that continuous casting even squeezes production precipitation strength type high-strength copper evanohm, it is characterised in that：Its concrete technology is walked
It is rapid as follows：
Step 1：Dispensing
Dispensing is carried out according to copper-chromium-zirconium alloy material chemical composition, wherein：Chromium content be 0.3 ~ 1.5wt%, zirconium content be 0.03 ~
0.1 wt%, remaining is copper content；
Step 2：Horizontal continuous-casting produces corson alloy
Alloy melting temp is controlled at 1200-1300 DEG C, molten surface is covered with the charcoal or carbon black of drying, then at 1250 DEG C
Insulation, hauling speed used is 10-50mm/s, and the copper alloy shank diameter that casting is obtained is 23mm；
Step 3：On-line solution Quenching Treatment
The copper alloy bar that horizontal continuous-casting is produced is carried out into solution treatment, solid solution temperature is 900 DEG C, mode of heating selection
Sensing heating or continuous annealing stove heat, process time 40min, quenching use water-spraying control；
Step 4：Continuously extruding and molding
Bar material is sent into by the good copper alloy bar material of solution treatment by the bar material entrance of extruder and carries oxide skin removal device
Continuous extruder in, aoxidized by oxide skin removal device and removed the peel, then control extrusion speed for 1-3m/min extrusion formings；
Step 5：Cold rolling and Ageing Treatment
Copper alloy made-up belt after continuously extruding and molding is carried out into cold-rolling deformation 2 times, each cold rolling reduction is 20-50%, twice
Artificial aging treatment, 450 DEG C of aging temp, time 2h are carried out between cold rolling shaping；
Step 6：Finishing
Copper alloy made-up belt after cold rolling and Ageing Treatment is carried out into finishing deformation, finishing rolling step is completed, performance is obtained and size is full
The blaster fuse frame material that foot is required.
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| CN201710012956.7A CN106756212A (en) | 2017-01-09 | 2017-01-09 | The method that continuous casting even squeezes production precipitation strength type high-strength copper evanohm |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108504893A (en) * | 2018-05-10 | 2018-09-07 | 沈阳有色金属加工有限公司 | Iron-copper bar preparation method |
| CN109457138A (en) * | 2019-01-11 | 2019-03-12 | 燕山大学 | A kind of preparation method of high-strength Kumium alloy |
| CN110029245A (en) * | 2019-05-10 | 2019-07-19 | 长沙新材料产业研究院有限公司 | A kind of copper alloy powder and preparation method thereof, application |
| CN111394609A (en) * | 2020-04-24 | 2020-07-10 | 浙江大学 | Continuous extrusion process of high-strength high-conductivity copper alloy, application of continuous extrusion process and die material |
| CN114453418A (en) * | 2022-01-05 | 2022-05-10 | 广东中发摩丹科技有限公司 | Short-process preparation method of high-strength high-conductivity Cu-Ni-Co-Si-Li alloy high-precision band |
| US11913105B2 (en) | 2020-04-24 | 2024-02-27 | Zhejiang University | High-efficiency and short-process method for preparing a high-strength and high-conductivity copper alloy |
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| CN101224544A (en) * | 2008-01-30 | 2008-07-23 | 江阴华电新材料有限公司 | Producing method of lead frame cuprum alloy strip with high strength and conductivity |
| CN101531149A (en) * | 2009-04-09 | 2009-09-16 | 中铁电气化局集团有限公司 | Preparation method of overlength Cu-Cr-Zr alloyed contact line |
| CN102108459A (en) * | 2009-12-23 | 2011-06-29 | 沈阳兴工铜业有限公司 | High-strength nickel-chromium-silicon-copper alloy material and processing technology thereof |
| CN103382535A (en) * | 2013-07-10 | 2013-11-06 | 河南科技大学 | High strength, high conductivity and high elongation copper alloy and preparation method thereof |
| CN104294196A (en) * | 2014-09-18 | 2015-01-21 | 河南科技大学 | Short-flow preparation method of Cu-Cr-Zr alloy strip |
| CN104928603A (en) * | 2015-06-29 | 2015-09-23 | 烟台金晖铜业有限公司 | Thermo-mechanical treatment process of great-length Cu-Cr-Zr-Si alloy contact line |
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Patent Citations (7)
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| CN101224544A (en) * | 2008-01-30 | 2008-07-23 | 江阴华电新材料有限公司 | Producing method of lead frame cuprum alloy strip with high strength and conductivity |
| CN101531149A (en) * | 2009-04-09 | 2009-09-16 | 中铁电气化局集团有限公司 | Preparation method of overlength Cu-Cr-Zr alloyed contact line |
| CN102108459A (en) * | 2009-12-23 | 2011-06-29 | 沈阳兴工铜业有限公司 | High-strength nickel-chromium-silicon-copper alloy material and processing technology thereof |
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| CN103382535A (en) * | 2013-07-10 | 2013-11-06 | 河南科技大学 | High strength, high conductivity and high elongation copper alloy and preparation method thereof |
| CN104294196A (en) * | 2014-09-18 | 2015-01-21 | 河南科技大学 | Short-flow preparation method of Cu-Cr-Zr alloy strip |
| CN104928603A (en) * | 2015-06-29 | 2015-09-23 | 烟台金晖铜业有限公司 | Thermo-mechanical treatment process of great-length Cu-Cr-Zr-Si alloy contact line |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108504893A (en) * | 2018-05-10 | 2018-09-07 | 沈阳有色金属加工有限公司 | Iron-copper bar preparation method |
| CN108504893B (en) * | 2018-05-10 | 2020-01-21 | 沈阳有色金属加工有限公司 | Preparation method of iron-copper alloy bar |
| CN109457138A (en) * | 2019-01-11 | 2019-03-12 | 燕山大学 | A kind of preparation method of high-strength Kumium alloy |
| CN110029245A (en) * | 2019-05-10 | 2019-07-19 | 长沙新材料产业研究院有限公司 | A kind of copper alloy powder and preparation method thereof, application |
| CN111394609A (en) * | 2020-04-24 | 2020-07-10 | 浙江大学 | Continuous extrusion process of high-strength high-conductivity copper alloy, application of continuous extrusion process and die material |
| US11913105B2 (en) | 2020-04-24 | 2024-02-27 | Zhejiang University | High-efficiency and short-process method for preparing a high-strength and high-conductivity copper alloy |
| CN114453418A (en) * | 2022-01-05 | 2022-05-10 | 广东中发摩丹科技有限公司 | Short-process preparation method of high-strength high-conductivity Cu-Ni-Co-Si-Li alloy high-precision band |
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Application publication date: 20170531 |