CN101670365B - Preparation method of double lateral insert silver-copper composite strip - Google Patents
Preparation method of double lateral insert silver-copper composite strip Download PDFInfo
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- CN101670365B CN101670365B CN2009101764327A CN200910176432A CN101670365B CN 101670365 B CN101670365 B CN 101670365B CN 2009101764327 A CN2009101764327 A CN 2009101764327A CN 200910176432 A CN200910176432 A CN 200910176432A CN 101670365 B CN101670365 B CN 101670365B
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- 239000002131 composite material Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 title claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052802 copper Inorganic materials 0.000 claims abstract description 44
- 239000010949 copper Substances 0.000 claims abstract description 44
- 229910052709 silver Inorganic materials 0.000 claims abstract description 35
- 239000004332 silver Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000000137 annealing Methods 0.000 claims abstract description 16
- 238000005219 brazing Methods 0.000 claims abstract description 13
- 238000005097 cold rolling Methods 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 37
- 239000010930 yellow gold Substances 0.000 claims description 20
- 229910001097 yellow gold Inorganic materials 0.000 claims description 20
- 238000005476 soldering Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 4
- 239000010970 precious metal Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000010946 fine silver Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to a preparation method of a composite strip, in particular to a preparation method of an interval lateral silver-copper composite strip. The method is characterized in that the preparation method comprises the following steps: (1) opening strip symmetric through-holes in the centre of a strip copper plate along the length direction; (2) inserting corresponding silver-copper alloy/silver/silver-copper alloy triple composite strips in the strip through-holes to form composite blank; placing the inserted blank in a vacuum brazing furnace, keeping temperature to 780-850 DEG C for 10-30min, brazing to connected the silver-copper alloy/silver/silver-copper alloy triple composite strips inserted in the through-holes with the inner edge of the strip through-holes of the copper plate; and (4) processing the brazed and connected composite blank through cold rolling, annealing and fine rolling to obtain the finished product. The silver-copper composite strip prepared by the method of the invention has high strength at the lateral connection position of silver and copper strips and good stability; the material can be used in the low-voltage fast acting fuse, thus saving a great number of precious metals -- pure silver and reducing the production cost.
Description
Technical field
The present invention relates to a kind of preparation method of composite strip, especially at a kind of preparation method of alternate side direction silver-copper composite strip.
Background technology
Silver/copper composite band is mainly used on the low-tension fuse as the substitution material of pure silver belt.It had both kept the effect of the quick fuse of original silver band, had saved material cost again in a large number, along with the development of industries such as electric power, metallurgy, chemical industry, petrochemical industry forms very big market, will progressively replace a large amount of at present fine silver fusing carrying materials that use.
The preparation method of present silver/copper composite band, disclosed have Chinese patent " copper/silver/copper two sided composite board band " (CN2718768Y, disclosed day on August 17th, 2005) and " a kind of preparation method of double side mosaic type hot-rolling composite silver copper strip " (CN101053874A, open day on October 17th, 2007).Said method makes the less stable of silver bar and the combination of copper bar side because the hot rolling compound tense can produce oxidation; And the working modulus compound owing to hot rolling is bigger, and to having relatively high expectations of capacity of equipment, and the width dimensions of silver bar and copper bar is also wayward.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, provide the multiple layer of a kind of silver of preparing/copper composite band firmly, silver bar and the combination of copper bar side stable higher, to the preparation method of less demanding, the double lateral insert silver-copper composite strip that production cost is low of capacity of equipment.
The objective of the invention is to be achieved through the following technical solutions.
A kind of preparation method of double lateral insert silver-copper composite strip is characterized in that the step of its preparation process comprises:
(1) the strip copper coin is gone up symmetry placed in the middle along its length and leave the strip through hole;
(2) cooperation is inlaid into yellow gold/silver/yellow gold three-layer composite board bar in strip through-hole, forms composite blank;
(3) composite blank after will inlaying is put into vacuum brazing furnace, is incubated 10～30min under 780～850 ℃ of temperature, silver and copper brazing connection;
(4) soldering is connect the back composite blank and carry out cold rolling, annealing, finish rolling to finished product.
The preparation method of a kind of double lateral insert silver-copper composite strip of the present invention is characterized in that described yellow gold/silver/yellow gold three-layer composite board adopts the blast complex method to make by yellow gold plate, silver plate, yellow gold plate.
The preparation method of a kind of double lateral insert silver-copper composite strip of the present invention, it is characterized in that described composite blank through cold rolling, annealing, finish rolling to the cold rolling process conditions of finished product process is: the total working modulus between every twice annealing is 60%～80%, pass reduction is 7%～10%, annealing temperature is 500～600 ℃, and annealing time is 1～2h.
Method of the present invention, having overcome prior art uses the soldering composite methods to produce silver/copper composite band, because scolder is not to fill the interface junction of entering to close defect of bad, yellow gold/silver/yellow gold the three-layer composite board that adopts the blast composite methods to make, solder thickness is 0.1～0.12mm, therefore finished product silver/copper composite band can guarantee that product is attractive in appearance, and resistivity is qualified, can make multiple layer have stability preferably again; Owing to adopt the compound technology of soldering, and in follow-up mill-annealed process, annealing process when adopting rolling technology of little working modulus and middle temperature long, make finished product silver/copper composite band bond strength height, safe and reliable, the silver of preparing/copper composite band, the intensity height of silver bar and the combination of copper bar side, and stability better, replaces pure silver belt to be widely used in the low pressure fastp-acting fuse.When satisfying instructions for use, can save the noble metal fine silver in a large number, thereby reduce production costs greatly.
The specific embodiment
A kind of preparation method of double lateral insert silver-copper composite strip opens the strip through hole with copper coin along its length, the copper hole is cleaned up; Adopt the explosive welding composite methods to prepare yellow gold/silver/yellow gold three-layer composite board, be machined to suitable dimensions and make it to inlay among people's copper hole.Blank after will inlaying is put into the vacuum furnace brazing, and brazing temperature is 780～850 ℃, insulation 10～30min, and after the soldering, band to finished product, at this moment, becomes firm metallurgical binding through cold rolling, middle temperature prolonged anneal, finish rolling between the silver bar of composite band and the copper bar.
Embodiment 1
The preparation method of a kind of alternate three bullions bullion/copper composite band adopts plain mille to mill out three through holes to copper coin, and the thickness of copper coin is 10mm.Rough mill earlier, through hole is of a size of 3.5mm, carries out the size hole milling again, and clear size of opening is 4.0mm, guarantees that the copper internal surface of hole is smooth.With gasoline the copper coin that mills out behind the through hole is soaked the 30min oil removing, clean the back with supersonic wave cleaning machine and use dehydration of alcohol, dry; 2 of preparation Ag72Cu plates, thickness is 0.5mm, and 1 of silver plate, thickness are 20mm, adopt the blast composite methods with all compound Ag72Cu plate of going up of silver plate upper and lower surface, and after 600 ℃/1h of the employing annealing, being rolled down to thickness is 4mm, shears among three embedding people copper holes.Blank after will inlaying is put into the vacuum furnace brazing, and brazing temperature is 800 ℃/20min, and after the soldering, blank becomes firm metallurgical binding by mechanical interference.To finished product, finished product thickness is 0.2mm to band through cold rolling, annealing, finish rolling and sub-cut, and width is 70mm.
Embodiment 2
A kind of preparation method of alternate nine rule silver bar silver/copper composite band adopts plain mille to mill out nine through holes to copper coin, and the thickness of copper coin is 10mm.Rough mill earlier, clear size of opening is 3.5mm, carries out the size hole milling again, and clear size of opening is 4.0mm, guarantees that the copper internal surface of hole is smooth.With gasoline the copper coin that mills out behind the through hole is soaked the 30min oil removing, clean the back with supersonic wave cleaning machine and use dehydration of alcohol, dry; 2 of preparation Ag45Cu plates, thickness is 0.5mm, and 1 of silver plate, thickness are 20mm, adopt the blast composite methods with all compound Ag45Cu plate of going up of silver plate upper and lower surface, and after 600 ℃/1h of the employing annealing, being rolled down to thickness is 4mm, shears nine and embeds among the copper hole.Blank after will inlaying is put into the vacuum furnace brazing, and brazing temperature is 800 ℃/25min, and after the soldering, blank becomes firm metallurgical binding by mechanical interference.To finished product, finished product thickness is 0.1mm to band through cold rolling, annealing, finish rolling and sub-cut, and width is 100mm.
A kind of preparation method of alternate side direction soldering composite silver copper strip opens the strip through hole with copper coin along its length, the copper hole is cleaned up; Adopt the explosive welding composite methods to prepare yellow gold/silver/yellow gold three-layer composite board, be machined to suitable dimensions and make it to inlay among people's copper hole.Blank after will inlaying is put into the vacuum furnace brazing, and brazing temperature is 780～850 ℃, insulation 10～30min, and after the soldering, band to finished product, at this moment, becomes firm metallurgical binding through cold rolling, middle temperature prolonged anneal, finish rolling between the silver bar of composite band and the copper bar.Adopt this method to prepare silver/copper composite band, less demanding to capacity of equipment, and the multiple layer of the silver of producing/copper composite band is firmly, the intensity height of composite band silver bar and the combination of copper bar side, and stability is better.
Claims (2)
1. the preparation method of a double lateral insert silver-copper composite strip is characterized in that the step of its preparation process comprises:
(1) the strip copper coin is gone up symmetry placed in the middle along its length and leave the strip through hole;
(2) cooperation is inlaid into yellow gold/silver/yellow gold three-layer composite board bar in strip through-hole, forms composite blank; Described yellow gold/silver/yellow gold three-layer composite board adopts the blast complex method to make by yellow gold plate, silver plate, yellow gold plate;
(3) blank after will inlaying is put into vacuum brazing furnace, and under 780～850 ℃ of temperature, insulation 10～30min is with the yellow gold/silver/yellow gold three-layer composite board bar and copper coin strip through-hole inner edge soldering connection that is inlaid in the copper coin through hole;
(4) soldering is connect the back composite blank and carry out cold rolling, annealing, finish rolling to finished product.
2. the preparation method of a kind of double lateral insert silver-copper composite strip according to claim 1, it is characterized in that described composite blank through cold rolling, annealing, finish rolling to the cold rolling process conditions of finished product process is: the total working modulus between every twice annealing is 60%～80%, pass reduction is 7%～10%, annealing temperature is 500～600 ℃, and annealing time is 1～2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101764327A CN101670365B (en) | 2009-09-15 | 2009-09-15 | Preparation method of double lateral insert silver-copper composite strip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101764327A CN101670365B (en) | 2009-09-15 | 2009-09-15 | Preparation method of double lateral insert silver-copper composite strip |
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| CN101670365A CN101670365A (en) | 2010-03-17 |
| CN101670365B true CN101670365B (en) | 2011-01-26 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814324B (en) * | 2012-08-30 | 2014-08-06 | 福达合金材料股份有限公司 | Preparation method of side compound silver-copper composite strip |
| CN102896150B (en) * | 2012-11-07 | 2015-02-11 | 福达合金材料股份有限公司 | Method for preparing through-type composite strip embedded with silver copper |
| CN103272842A (en) * | 2013-06-14 | 2013-09-04 | 武汉钢铁(集团)公司 | Meshing type composite plate vacuum rolling preparation method |
| CN106391705B (en) * | 2016-11-30 | 2018-03-16 | 西安诺博尔稀贵金属材料有限公司 | A kind of milling method of wide cut fine silver sheet material |
| CN106425100B (en) * | 2016-12-05 | 2018-04-03 | 西南交通大学 | Bilateral laser titanium steel composite board complete penetraction and fusion in welding welding method based on transition zone control |
| CN108080414B (en) * | 2017-12-05 | 2019-05-24 | 温州宏丰电工合金股份有限公司 | The preparation method of the compound ingot of penetration type silver-bearing copper and band |
| CN108480400B (en) * | 2018-03-11 | 2020-04-24 | 徐卓辉 | Heterogeneous metal spliced composite plate strip and preparation method thereof |
| CN112388313B (en) * | 2020-10-26 | 2022-03-11 | 郑州机械研究所有限公司 | Method and equipment for preparing composite strip |
| CN113941797B (en) * | 2021-10-27 | 2022-10-04 | 浙江亚通焊材有限公司 | Grid-shaped composite strip of high-tin-content copper-tin brazing filler metal and preparation method thereof |
| CN114227064B (en) * | 2021-12-27 | 2022-10-04 | 浙江亚通焊材有限公司 | Silver-copper-titanium active solder laminated composite strip and preparation method thereof |
| CN114669974A (en) * | 2022-05-30 | 2022-06-28 | 昆明理工大学 | Preparation method of copper-silver composite material |
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| CN101670365A (en) | 2010-03-17 |
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Effective date of registration: 20210108 Address after: 710065 No.18, middle section of Jinggao North Road, Jingwei new town, economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee after: Xi'an noble rare metal materials Co.,Ltd. Address before: 710065 No. three, No. 56, hi tech Zone, Shaanxi, Xi'an Patentee before: WESTERN METAL MATERIAL Co.,Ltd. |