CN104294196A - Short-flow preparation method of Cu-Cr-Zr alloy strip - Google Patents
Short-flow preparation method of Cu-Cr-Zr alloy strip Download PDFInfo
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- CN104294196A CN104294196A CN201410477959.4A CN201410477959A CN104294196A CN 104294196 A CN104294196 A CN 104294196A CN 201410477959 A CN201410477959 A CN 201410477959A CN 104294196 A CN104294196 A CN 104294196A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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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Abstract
The invention discloses a short-flow preparation method of a Cu-Cr-Zr alloy strip. The method comprises the following steps: 1) blank heating, namely heating and insulating a Cu-Cr-Zr alloy blank to obtain a high-temperature blank; and 2) synchronous extrusion and solution treatment, namely extruding the high-temperature blank and putting the extruded blank in water for water seal solution treatment, thereby obtaining the Cu-Cr-Zr alloy strip. The short-flow preparation method of the Cu-Cr-Zr alloy strip comprises the following steps: carrying out synchronous extrusion and solution treatment on the heated Cu-Cr-Zr alloy strip; and after solution treatment, directly carrying out subsequent cold deformation, so that the process flow is greatly shortened, the production cost is greatly lowered and the labor efficiency is greatly improved, and meanwhile, the problem that solution treatment is hardly carried out for the Cu-Cr-Zr alloy strip is solved. The obtained Cu-Cr-Zr alloy strip has excellent mechanical and electric properties and has wide application prospect. The short-flow preparation method is simple in process, convenient to operate, low in cost and suitable for industrial production.
Description
Technical field
The invention belongs to Cu-Cr-Zr field of alloy preparation technology, be specifically related to a kind of short process making method of Cu-Cr-Zr alloy strip steel rolled stock.
Background technology
Cu-Cr-Zr alloy is the structure-function material in copper alloy with high strength and high conductivity with excellent combination physicals and mechanical property, both there is high intensity and good plasticity, inherit again the electroconductibility that fine copper is excellent, be widely used in the field such as high-voltage electrical apparatus, conticaster crystallizer, high-speed railway osculatory, the cooling of Thermonuclear Experimental reactor wall, microwave tube structure and conductive component, magnetic artillery track, aerospace connector assembly wire, significant to the enforcement of large project.
The traditional mode of production pattern of high-strength highly-conductive Cu-Cr-Zr system alloy is melting → casting → aftertreatment, mainly concentrates in the research to its aftertreatment (technique such as solid solution aging strengthening) at present to the research of high-strength highly-conductive Cu-Cr-Zr system alloy.At present, the intensifying technology technique generally adopted both at home and abroad is solution hardening+cold deformation+timeliness, wherein, solution hardening forms supersaturated solid solution, cold deformation can cause the defect such as dislocation, room, to increase nucleation rate during timeliness, and the Cr particle of height of formation disperse during timeliness and Cu
3zr particle is with reinforced alloys.
At present, be most widely used with Strip in Cu-Cr-Zr system alloy.The conventional preparation techniques of Cu-Cr-Zr alloy strip steel rolled stock comprises the following steps: melting, casting, hot extrusion, second-heating, solution treatment, cold deformation, ageing treatment.In prior art, there is again patent CN101733621A to disclose the modification method for preparing of a kind of Cu-Cr-Zr system sheet alloy, specifically comprise the following steps: founding, slab hot-rolling, hot-rolled sheet solid solution, plate surface polishing, cold rolling, timeliness.Although above-mentioned preparation method can obtain the good Cu-Cr-Zr system alloy plate strip of over-all properties, but above-mentioned preparation technology's ubiquity operation is many, complex process, strip solid solution difficulty, the production cycle is long, the problem that cost is high, energy consumption is high, disposal of pollutants is serious, can not meet the needs of industrialization scale operation.
Summary of the invention
The object of this invention is to provide a kind of short process making method of Cu-Cr-Zr alloy strip steel rolled stock, solve the problem of existing Cu-Cr-Zr system alloy plate strip complex manufacturing, production cycle length.
In order to realize above object, the technical solution adopted in the present invention is: a kind of short process making method of Cu-Cr-Zr alloy strip steel rolled stock, comprises the following steps:
1) blank heating: get Cu-Cr-Zr alloy casting blank, heats and is incubated, and obtains high temperature blank;
2) synchronously solid solution is extruded: by step 1) gained high temperature blank extrudes, and the blank squeezed out is placed in water and carries out water seal solution treatment, obtains described Cu-Cr-Zr alloy strip steel rolled stock.
Step 1) in, described heating refers to be heated to 850 ~ 1050 DEG C; The time of described insulation is 10 ~ 90min.
Step 2) in, the container of described extruding and extrusion mould carry out preheating before use; The temperature of preheating is 450 ~ 550 DEG C.
Step 2) in, the temperature of described water is 15 ~ 25 DEG C.
The time of described water seal solution treatment is 30 ~ 60min.
Step 2) in, after water seal solution treatment, gained solid solution band can directly carry out cold roller and deformed.
Described cold roller and deformed after band under protective atmosphere, carry out ageing treatment.
Described protective atmosphere is argon gas or nitrogen.
The temperature of described ageing treatment is 400 ~ 600 DEG C, and the time is 0.25 ~ 6h.
The temperature of Cu-Cr-Zr alloy hot extrusion is between 900 ~ 1050 DEG C, and the traditional solution treatment temp of this alloy is 950 ~ 1000 DEG C, soaking time is 10 ~ 90min, therefore be fully incubated when carrying out hot extrusion, solid solubility temperature is remained on after blank is extruded, directly carry out solution treatment, then carry out follow-up cold deformation, can shortened process greatly.
The short process making method of Cu-Cr-Zr alloy strip steel rolled stock of the present invention, synchronously extrude solid solution after being heated by Cu-Cr-Zr alloy casting blank, namely be directly placed in water after extruding and carry out water seal solution treatment, the strand of traditional technology is extruded-second-heating-solution treatment is optimized for extruding and solution treatment is carried out simultaneously, directly follow-up cold deformation can be carried out after solution treatment, decrease manufacturing procedure, simplify production technique, substantially reduce technical process, eliminate the equipment investment of second-heating process furnace, reduce production cost, improve efficiency, overcome the problem of traditional C u-Cr-Zr alloy strip steel rolled stock solid solution difficulty simultaneously, gained Cu-Cr-Zr alloy strip steel rolled stock has excellent mechanical property and electric property, has broad application prospects, this short process making method technique is simple, and easy to operate, cost is low, is applicable to large-scale industrial production.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
In embodiment, Cu-0.33Cr-0.06Zr alloy casting blank used refers in alloy, and the mass percentage of Cr is the mass percentage of 0.33%, Zr is 0.06%, and surplus is Cu.
Embodiment 1
The short process making method of the Cu-Cr-Zr alloy strip steel rolled stock of the present embodiment, comprises the following steps:
1) blank heating: get Cu-0.33Cr-0.06Zr alloy casting blank, is heated to 850 DEG C in box-type furnace, and insulation 90min makes strand be heated evenly, and obtains high temperature blank;
Carry out preheating to the container in extrusion machine and extrusion mould, preheating temperature is 450 DEG C;
2) synchronously solid solution is extruded: by step 1) gained high temperature blank puts into container, and 20mm place within the tangential movement to container end face of extruding punch, play the guiding role; Extrusion machine lost motion, extruding punch enters container, extrudes; In extrusion process, due to the heat of friction that movement of metallic produces, the temperature after high temperature blank is extruded still remains in solid solubility temperature scope (900 ~ 1000 DEG C); Extrude from the container the other end after blank crimp, the blank squeezed out enters in the cold water of 15 DEG C in the moment extruded and carries out water seal solution treatment, and solution time is 60min, obtains solid solution band;
3) cold deformation: by step 2) gained solid solution band carries out polishing, after removing surface, carry out cold roller and deformed;
4) ageing treatment: be placed in vacuum atmosphere tube furnace by the band after cold roller and deformed, carry out ageing treatment under argon atmosphere, the temperature of ageing treatment is 600 DEG C, and the time is 0.25h, obtains described Cu-Cr-Zr alloy strip steel rolled stock.
Embodiment 2
The short process making method of the Cu-Cr-Zr alloy strip steel rolled stock of the present embodiment, comprises the following steps:
1) blank heating: get Cu-0.33Cr-0.06Zr alloy casting blank, is heated to 900 DEG C in box-type furnace, and insulation 60min makes strand be heated evenly, and obtains high temperature blank;
Carry out preheating to the container in extrusion machine and extrusion mould, preheating temperature is 480 DEG C;
2) synchronously solid solution is extruded: by step 1) gained high temperature blank puts into container, and 20mm place within the tangential movement to container end face of extruding punch, play the guiding role; Extrusion machine lost motion, extruding punch enters container, extrudes; In extrusion process, due to the heat of friction that movement of metallic produces, the temperature after high temperature blank is extruded still remains in solid solubility temperature scope (900 ~ 1000 DEG C); Extrude from the container the other end after blank crimp, the blank squeezed out enters in the cold water of 20 DEG C in the moment extruded and carries out water seal solution treatment, and solution time is 50min, obtains solid solution band;
3) cold deformation: by step 2) gained solid solution band carries out polishing, after removing surface, carry out cold roller and deformed;
4) ageing treatment: be placed in vacuum atmosphere tube furnace by the band after cold roller and deformed, carry out ageing treatment under argon atmosphere, the temperature of ageing treatment is 500 DEG C, and the time is 2h, obtains described Cu-Cr-Zr alloy strip steel rolled stock.
Embodiment 3
The short process making method of the Cu-Cr-Zr alloy strip steel rolled stock of the present embodiment, comprises the following steps:
1) blank heating: get Cu-0.33Cr-0.06Zr alloy casting blank, is heated to 950 DEG C in box-type furnace, and insulation 30min makes strand be heated evenly, and obtains high temperature blank;
Carry out preheating to the container in extrusion machine and extrusion mould, preheating temperature is 510 DEG C;
2) synchronously solid solution is extruded: by step 1) gained high temperature blank puts into container, and 20mm place within the tangential movement to container end face of extruding punch, play the guiding role; Extrusion machine lost motion, extruding punch enters container, extrudes; In extrusion process, due to the heat of friction that movement of metallic produces, the temperature after high temperature blank is extruded still remains in solid solubility temperature scope (900 ~ 1000 DEG C); Extrude from the container the other end after blank crimp, the blank squeezed out enters in the cold water of 25 DEG C in the moment extruded and carries out water seal solution treatment, and solution time is 460min, obtains solid solution band;
3) cold deformation: by step 2) gained solid solution band carries out polishing, after removing surface, carry out cold roller and deformed;
4) ageing treatment: be placed in vacuum atmosphere tube furnace by the band after cold roller and deformed, carry out ageing treatment under argon atmosphere, the temperature of ageing treatment is 450 DEG C, and the time is 4h, obtains described Cu-Cr-Zr alloy strip steel rolled stock.
Embodiment 4
The short process making method of the Cu-Cr-Zr alloy strip steel rolled stock of the present embodiment, comprises the following steps:
1) blank heating: get Cu-0.33Cr-0.06Zr alloy casting blank, is heated to 1050 DEG C in box-type furnace, and insulation 10min makes strand be heated evenly, and obtains high temperature blank;
Carry out preheating to the container in extrusion machine and extrusion mould, preheating temperature is 550 DEG C;
2) synchronously solid solution is extruded: by step 1) gained high temperature blank puts into container, and 20mm place within the tangential movement to container end face of extruding punch, play the guiding role; Extrusion machine lost motion, extruding punch enters container, extrudes; In extrusion process, due to the heat of friction that movement of metallic produces, the temperature after high temperature blank is extruded still remains in solid solubility temperature scope (900 ~ 1000 DEG C); Extrude from the container the other end after blank crimp, the blank squeezed out enters in the cold water of 20 DEG C in the moment extruded and carries out water seal solution treatment, and solution time is 30min, obtains solid solution band;
3) cold deformation: by step 2) gained solid solution band carries out polishing, after removing surface, carry out cold roller and deformed;
4) ageing treatment: be placed in vacuum atmosphere tube furnace by the band after cold roller and deformed, carry out ageing treatment under argon atmosphere, the temperature of ageing treatment is 400 DEG C, and the time is 6h, obtains described Cu-Cr-Zr alloy strip steel rolled stock.
Experimental example
This experimental example detects the mechanical property of embodiment 1 ~ 4 gained Cu-Cr-Zr alloy strip steel rolled stock and electric property, and result is as shown in table 1.
Wherein, comparative example is the Cu-Cr-Zr alloy strip steel rolled stock of conventional preparation techniques gained, and conventional preparation techniques comprises the following steps: melting, casting, hot extrusion, second-heating, solution treatment, cold deformation, ageing treatment.
Table 1 embodiment 1 ~ 4 gained Cu-Cr-Zr alloy strip steel rolled stock performance test results
| Project | Tensile strength (MPa) | Unit elongation (%) | Microhardness (HV) | Electric conductivity (%IACS) |
| Embodiment 1 | 580 | 8 | 227 | 85 |
| Embodiment 2 | 582 | 7.8 | 230 | 83 |
| Embodiment 3 | 578 | 8 | 227 | 84 |
| Embodiment 4 | 576 | 8 | 226 | 84 |
| Comparative example | 560 | 7.8 | 220 | 82 |
As can be seen from Table 1, embodiment 1 ~ 4 gained Cu-Cr-Zr alloy strip steel rolled stock is all better than traditional technology gained alloy strip steel rolled stock in tensile strength, unit elongation, microhardness and electric conductivity.Experimental result shows, the short process making method of Cu-Cr-Zr alloy strip steel rolled stock of the present invention not only simplify production technique, substantially reduces technical process, also improves mechanical property and the electric property of Cu-Cr-Zr alloy strip steel rolled stock, is applicable to applying.
Claims (8)
1. a short process making method for Cu-Cr-Zr alloy strip steel rolled stock, is characterized in that: comprise the following steps:
1) blank heating: get Cu-Cr-Zr alloy casting blank, heats and is incubated, and obtains high temperature blank;
2) synchronously solid solution is extruded: by step 1) gained high temperature blank extrudes, and the blank squeezed out is placed in water and carries out water seal solution treatment, obtains described Cu-Cr-Zr alloy strip steel rolled stock.
2. the short process making method of Cu-Cr-Zr alloy strip steel rolled stock according to claim 1, is characterized in that: step 1) in, described heating refers to be heated to 850 ~ 1050 DEG C; The time of described insulation is 10 ~ 90min.
3. the short process making method of Cu-Cr-Zr alloy strip steel rolled stock according to claim 1, is characterized in that: step 2) in, the container of described extruding and extrusion mould carry out preheating before use; The temperature of preheating is 450 ~ 550 DEG C.
4. the short process making method of Cu-Cr-Zr alloy strip steel rolled stock according to claim 1, is characterized in that: step 2) in, the temperature of described water is 15 ~ 25 DEG C.
5. the short process making method of the Cu-Cr-Zr alloy strip steel rolled stock according to claim 1 or 4, is characterized in that: the time of described water seal solution treatment is 30 ~ 60min.
6. the short process making method of Cu-Cr-Zr alloy strip steel rolled stock according to claim 1, is characterized in that: step 2) in, after water seal solution treatment, gained solid solution band can directly carry out cold roller and deformed.
7. the short process making method of Cu-Cr-Zr alloy strip steel rolled stock according to claim 6, is characterized in that: described cold roller and deformed after band under protective atmosphere, carry out ageing treatment.
8. the short process making method of Cu-Cr-Zr alloy strip steel rolled stock according to claim 7, is characterized in that: the temperature of described ageing treatment is 400 ~ 600 DEG C, and the time is 0.25 ~ 6h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477959.4A CN104294196B (en) | 2014-09-18 | A kind of short process making method of Cu-Cr-Zr alloy strip steel rolled stock |
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| CN201410477959.4A CN104294196B (en) | 2014-09-18 | A kind of short process making method of Cu-Cr-Zr alloy strip steel rolled stock |
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| CN104294196B CN104294196B (en) | 2017-01-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756212A (en) * | 2017-01-09 | 2017-05-31 | 上海理工大学 | The method that continuous casting even squeezes production precipitation strength type high-strength copper evanohm |
| CN113930638A (en) * | 2021-10-15 | 2022-01-14 | 东北大学 | Microalloyed CuCrZr alloy with excellent uniform elongation and preparation method thereof |
| CN114309119A (en) * | 2021-12-29 | 2022-04-12 | 常州大学 | Graphene/copper composite deformed copper-chromium-zirconium alloy laminated strip and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382542A (en) * | 2013-05-09 | 2013-11-06 | 河南理工大学 | Preparation method of fiber-reinforced Cu-Cr-Zr alloys |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382542A (en) * | 2013-05-09 | 2013-11-06 | 河南理工大学 | Preparation method of fiber-reinforced Cu-Cr-Zr alloys |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756212A (en) * | 2017-01-09 | 2017-05-31 | 上海理工大学 | The method that continuous casting even squeezes production precipitation strength type high-strength copper evanohm |
| CN113930638A (en) * | 2021-10-15 | 2022-01-14 | 东北大学 | Microalloyed CuCrZr alloy with excellent uniform elongation and preparation method thereof |
| CN114309119A (en) * | 2021-12-29 | 2022-04-12 | 常州大学 | Graphene/copper composite deformed copper-chromium-zirconium alloy laminated strip and preparation method thereof |
| CN114309119B (en) * | 2021-12-29 | 2023-10-20 | 常州大学 | Graphene/copper composite deformed copper-chromium-zirconium alloy layered strip and preparation method thereof |
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