CN105810361A - 一种铜包铝复合丝材制备方法 - Google Patents
一种铜包铝复合丝材制备方法 Download PDFInfo
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- CN105810361A CN105810361A CN201610198397.9A CN201610198397A CN105810361A CN 105810361 A CN105810361 A CN 105810361A CN 201610198397 A CN201610198397 A CN 201610198397A CN 105810361 A CN105810361 A CN 105810361A
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- copper
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- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 22
- 239000010949 copper Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000000137 annealing Methods 0.000 claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000005554 pickling Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 17
- 239000004411 aluminium Substances 0.000 claims description 8
- 230000008602 contraction Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 229910000989 Alclad Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
-
- 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
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/02—Single bars, rods, wires, or strips
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metal Extraction Processes (AREA)
Abstract
一种铜包铝复合丝材的制备方法，首先，选择合适尺寸规格的铜管，经去油和氧化膜，在气体保护下，采用压力铸造的方式，采用机械的方式封闭铜管一端，在铜管另一端铸入金属铝液，冷却凝固制备复合坯料；复合坯料表面经酸洗后，然后采用孔型轧制、或辊模拉拔、或拉伸法制备φ1‑3 mm铜包铝复合丝材，铜包铝丝材再经单模拉伸或多模水箱拉伸至φ0.1‑0.5 mm；当冷变形的断面收缩率为95‑99%，复合丝材进行退火处理。
Description
技术领域
本发明涉及一种双金属复合丝材的制备方法，尤其涉及一种铜包铝复合丝材的制备方法。
背景技术
铜包铝丝是一种新型金属复合导线，具有导电性能好、密度低、成本低和用途广等优点，可广泛应用于电力、电子、汽车等行业。目前，铜包铝丝主要的制备方法可以分为两大类，一类为固/固相复合法，例如包覆焊接、轧制压接+拉拔成形法，此类方法需要结合中间退火，以提升复合界面结合强度，难以制备高性能的铜包铝复合丝材；另一类是直接连铸复合+塑性成形法，例如，水平连铸直接复合法（谢建新，等. 一种铜包铝复合导线的短流程制备方法. 中国发明专利，200810057669.9,2008-02-04），此类方法铝液在复合之前，需经较长时间的加热，界面复合时的温度难以控制。
发明内容
本发明提供一种流程相对较短铜包铝复合丝材的制备方法，其制备方法如下：
1）选择合适尺寸规格的铜管，经去油和氧化膜，在气体保护下，采用压力铸造（压力为0.2-1MPa）的方式，采用机械的方式封闭铜管一端，在铜管另一端铸入金属铝液（金属液温度为680-720℃），冷却凝固制备复合坯料；
2）复合坯料表面经酸洗后，采用孔型轧制、或辊模拉拔、或拉伸法制备φ1-3 mm铜包铝复合丝材，道次断面收缩率为15~35%；
3）铜包铝丝材经单模拉伸或多模水箱拉伸至φ0.1-0.5 mm，道次断面收缩率为8~25%；
4）当冷变形的断面收缩率为95-99%，复合丝材进行退火处理，退火温度为200-400℃，退火时间0.2-1h。
与现有技术相比，本发明具有以下技术优点：
1）铜管经去油、氧化膜处理后，在气体保护下免除了氧化，使复合界面维持高洁净和无氧化，提高界面结合强度；
2）与固/固相复合法相比，工艺流程短，且无需中间退火提升复合界面结合强度，界面结合强度高；
3）与常规铸造复合相比，采用压力铸造，可获得更为致密和细小的组织，提升了复合坯料性能，有利于制备高性能的铜包铝复合丝材。
具体实施方式：
以下结合实施例对本发明作进一步说明：
实施例1：φ0.3 mm铜包铝复合丝材成形工艺
1）选择铜管外径为φ30 mm，壁厚2.5mm，银管长度为300 mm，银管内壁经去油和酸洗去除氧化膜后，在气体保护下，以压板形式封闭银管一端，采用压力铸造（压力为0.3MPa）的方式，在铜管另一端铸入金属铝液（金属液温度为680℃），冷却凝固制备复合坯料；
2）复合坯料表面经稀盐酸清洗后，采用辊模拉拔制备φ3 mm银包复合铝丝材，道次断面收缩率为15~30%，道次变形量逐渐降低；
3）φ3 mm复合丝材进行退火处理，退火温度为400℃，退火时间0.5 h；
4）银包铝丝材经单模拉伸至φ0.3 mm，润滑剂为植物油，道次断面收缩率为10~25%，道次变形量逐渐降低。
Claims (1)
1.一种铜包铝复合丝材的制备方法，其特征在于：1）选择合适尺寸规格的铜管，经去油和氧化膜，在气体保护下，采用压力铸造（压力为0.2-1MPa）的方式，采用机械的方式封闭铜管一端，在铜管另一端铸入金属铝液（金属液温度为680-720℃），冷却凝固制备复合坯料；2）复合坯料表面经酸洗后，采用孔型轧制、或辊模拉拔、或拉伸法制备φ1-3 mm铜包铝复合丝材，道次断面收缩率为15~35%；3）铜包铝丝材经单模拉伸或多模水箱拉伸至φ0.1-0.5
mm，道次断面收缩率为8~25%；4）当冷变形的断面收缩率为95-99%，复合丝材进行退火处理，退火温度为200-400℃，退火时间0.2-1h。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909479A (zh) * | 2018-12-27 | 2019-06-21 | 北京科技大学 | 一种双金属复合丝材短流程制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04230905A (ja) * | 1990-08-31 | 1992-08-19 | Sumitomo Electric Ind Ltd | 銅被覆アルミニウム複合線及びその製造方法 |
| CN1851833A (zh) * | 2006-05-23 | 2006-10-25 | 金亚东 | 一种铜包铝合金线及其制备方法和生产装置 |
| CN101169987A (zh) * | 2007-12-04 | 2008-04-30 | 北京科技大学 | 铜包铝复合细扁线及其制备方法 |
| CN101236798A (zh) * | 2008-02-04 | 2008-08-06 | 北京科技大学 | 一种铜包铝复合扁线及其制备方法 |
| CN105033225A (zh) * | 2015-06-26 | 2015-11-11 | 东南大学 | 一种铜包铝复合材料的低压充芯制备工艺 |
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2016
- 2016-04-01 CN CN201610198397.9A patent/CN105810361A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04230905A (ja) * | 1990-08-31 | 1992-08-19 | Sumitomo Electric Ind Ltd | 銅被覆アルミニウム複合線及びその製造方法 |
| CN1851833A (zh) * | 2006-05-23 | 2006-10-25 | 金亚东 | 一种铜包铝合金线及其制备方法和生产装置 |
| CN101169987A (zh) * | 2007-12-04 | 2008-04-30 | 北京科技大学 | 铜包铝复合细扁线及其制备方法 |
| CN101236798A (zh) * | 2008-02-04 | 2008-08-06 | 北京科技大学 | 一种铜包铝复合扁线及其制备方法 |
| CN105033225A (zh) * | 2015-06-26 | 2015-11-11 | 东南大学 | 一种铜包铝复合材料的低压充芯制备工艺 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909479A (zh) * | 2018-12-27 | 2019-06-21 | 北京科技大学 | 一种双金属复合丝材短流程制备方法 |
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