CN105665671A - Upward continuous casting technology for large-load electro-conductive copper bus bars - Google Patents
Upward continuous casting technology for large-load electro-conductive copper bus bars Download PDFInfo
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- CN105665671A CN105665671A CN201610140332.9A CN201610140332A CN105665671A CN 105665671 A CN105665671 A CN 105665671A CN 201610140332 A CN201610140332 A CN 201610140332A CN 105665671 A CN105665671 A CN 105665671A
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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
- B22D11/14—Plants for continuous casting
- B22D11/145—Plants for continuous casting for upward casting
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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
- B22D11/10—Supplying or treating molten metal
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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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
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- Mechanical Engineering (AREA)
- Electrolytic Production Of Metals (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses an upward continuous casting technology for large-load electro-conductive copper bus bars. The upward continuous casting technology comprises the steps of 1, preparing recycled compressed copper material and electrolysis copper plates; 2, feeding the electrolysis copper plates and the recycled compressed copper material according to a proportion and carrying out smelting and mixing; 3, separating the recycled compressed copper material and the electrolysis copper plates which are not molten and enabling molten copper to enter a heat preservation cavity; 4, enabling the molten copper in the heat preservation cavity to enter an upward continuous casting crystallizer from the bottom through the siphoning effect and carrying out cooling crystallization in the upward continuous casting crystallizer through a cooling water system; and 5, drawing crystallized upward continuous casting copper material in the upward continuous casting crystallizer out from the top of the upward continuous casting crystallizer through a drawing device, drawing the upward continuous casting copper material at the speed of 120-160 millimeters per minute and finally packaging the manufactured upward continuous casting copper material into rolls. According to the upward continuous casting technology, the copper material can be recycled, the continuity of the production process is good, and the production efficiency is high.
Description
Technical field
The present invention relates to up-drawing method oxygen-free copper bar continuous casting production technical field, particularly the updraft continuous casting process of a kind of big load conductive copper bus-bar.
Background technology
In prior art, the production technology of big load conductive copper bus-bar copper rod is mainly semicontinuous casting technique and horizontal continuous casting process, adopts oxygen content in the strand of semicontinuous casting technique and horizontal continuous casting process acquisition wayward, and the qualification rate of the strand of production is relatively low; And follow-up the also needing to of strand produced through semicontinuous casting technique and horizontal continuous casting process can obtain finished product through rolling, traditional big load conductive copper bus-bar copper rod operation of rolling mainly comprises the steps that and is first heated by ingot casting, then ingot casting is carried out hot rolling, again ingot casting is carried out straightening processing, ingot casting after roughing aligning again, make ingot casting specification moderate through drawing operation, it is then passed through extruding and drawing again so as to molding, is finally annealed making after processing drawing and the straightening processing of final finished. The technological process of production operation of above-mentioned big load conductive copper bus-bar copper rod is more, and more complicated, energy resource consumption is big, continuous production and production efficiency are relatively low, and Productive statistics cost is big, and waste of material rate is high, yield rate is relatively low, and easily makes quickly shorten the service life of crystallizer in production process.
Copper material upper lead conticaster and up-drawing method oxygen-free copper bar continuous casting unit, copper material upper lead conticaster mainly for the production of long length light oxygen-free copper pipe and long length light oxygen-free copper slab section bar. Copper material upper lead conticaster can directly utilize cathode copper continuous fusion-cast and produce the pole stock of different size, tubing, slab or other profile shapes; Copper material upper lead conticaster is divided into 2000 tons, 3000 tons, 4000～60000 tons and 8000～12000 tons of four ranks according to yearly productive capacity. Produce black copper bar with traditional copper ingot calendering to compare, adopt copper material upper lead conticaster to carry out copper material production and processing has Technology advanced person, good product quality, specific energy consumption are low, produce kind and specification is versatile and flexible, strong adaptability, do not have three-waste pollution, etc. feature, be copper conductor and the desirable production technology of copper material processing.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides the updraft continuous casting process of a kind of big load conductive copper bus-bar, meet actual production requirement.
The technical solution adopted for the present invention to solve the technical problems is:
The updraft continuous casting process of a kind of big load conductive copper bus-bar, comprises the following steps:
Step one, by by enamel-covered wire, cable, copper bar reclaim copper raw material segregation excision insulating wrapped thing after be compressed into recovery compression copper material, select platy structure electrolytic copper plate be suspended on above continuous up-casting melt stove;
Step 2, by electrolytic copper plate with reclaim compression copper material and be fed in continuous up-casting melt stove according to the ratio of 1 (0.4～0.6) and to carry out melting mixing, the floating reduction oxygen barrier layer that arranges of molten copper water surface at continuous up-casting melt stove, the smelting temperature of continuous up-casting melt stove is 1180～1220 degrees Celsius;
Step 3, the equipment for separating liquid from solid that the molten copper water of continuous up-casting melt stove is provided by fine through holes separate and enter with the recovery compression copper material not melted and electrolytic copper plate in heat-insulated cavity, and holding temperature is 1160～1180 degrees Celsius;
Step 4, the molten copper water in heat-insulated cavity is made to enter into upward continuous casting crystallizer from bottom by siphonage, upward continuous casting crystallizer carries out crystallisation by cooling by cooling water system, the inflow temperature of cooling water system is not more than 30 degrees Celsius, and the leaving water temperature of cooling water system is not more than 45 degrees Celsius;
Step 5, by the device that is pulled by the continuous up-casting copper material of crystallization in upward continuous casting crystallizer from the Base top contact of upward continuous casting crystallizer, and be pulled continuous up-casting copper material with the speed of 120～160 millimeters per minute, the continuous up-casting copper material packing rolling finally will made.
As the concrete optimization of technique scheme, in described step one, electrolytic copper plate is suspended on above continuous up-casting melt stove by hoist engine, and the height of the electrolytic copper plate of hoist engine uniform descent suspension.
Concrete optimization as technique scheme, in described step 2, reduction oxygen barrier layer includes the Linesless charcoal insulation reducing zone being positioned at lower floor and the graphite flakes oxygen barrier layer being positioned at upper strata, and the thickness of Linesless charcoal insulation reducing zone is 10～20 centimetres, and the thickness of graphite flakes oxygen barrier layer is 5～10 centimetres.
Compared with prior art, the invention has the beneficial effects as follows:
The updraft continuous casting process of a kind of big load conductive copper bus-bar provided by the present invention, have that good product quality, specific energy consumption are low, produce kind and specification is versatile and flexible, strong adaptability, do not have three-waste pollution, etc. advantage; And the updraft continuous casting process of a kind of big load conductive copper bus-bar provided by the present invention, it is possible to from by enamel-covered wire, cable, copper bar reclaim copper raw material, thus realizing the recycling of copper material; Particularly preferably technological parameter can ensure that the continuity of production process of big load conductive copper bus-bar is good, production efficiency is high.
Detailed description of the invention
Specific embodiment 1
The updraft continuous casting process of a kind of big load conductive copper bus-bar, comprises the following steps:
Step one, by by enamel-covered wire, cable, copper bar reclaim copper raw material segregation excision insulating wrapped thing after be compressed into recovery compression copper material, select platy structure electrolytic copper plate be suspended on above continuous up-casting melt stove; And electrolytic copper plate is suspended on above continuous up-casting melt stove by hoist engine, the height of the electrolytic copper plate that hoist engine uniform descent hangs;
Step 2, by electrolytic copper plate with reclaim compression copper material and be fed in continuous up-casting melt stove according to the ratio of 1 (0.4～0.6) and to carry out melting mixing, the floating reduction oxygen barrier layer that arranges of molten copper water surface at continuous up-casting melt stove, the smelting temperature of continuous up-casting melt stove is 1180～1220 degrees Celsius;Reduction oxygen barrier layer includes the Linesless charcoal insulation reducing zone being positioned at lower floor and the graphite flakes oxygen barrier layer being positioned at upper strata, and the thickness of Linesless charcoal insulation reducing zone is 10～20 centimetres, and the thickness of graphite flakes oxygen barrier layer is 5～10 centimetres;
Step 3, the equipment for separating liquid from solid that the molten copper water of continuous up-casting melt stove is provided by fine through holes separate and enter with the recovery compression copper material not melted and electrolytic copper plate in heat-insulated cavity, and holding temperature is 1160～1180 degrees Celsius;
Step 4, the molten copper water in heat-insulated cavity is made to enter into upward continuous casting crystallizer from bottom by siphonage, upward continuous casting crystallizer carries out crystallisation by cooling by cooling water system, the inflow temperature of cooling water system is not more than 30 degrees Celsius, and the leaving water temperature of cooling water system is not more than 45 degrees Celsius;
Step 5, by the device that is pulled by the continuous up-casting copper material of crystallization in upward continuous casting crystallizer from the Base top contact of upward continuous casting crystallizer, and be pulled continuous up-casting copper material with the speed of 120～160 millimeters per minute, the continuous up-casting copper material packing rolling finally will made.
Updraft continuous casting process seriality in actual production process of above-mentioned a kind of big load conductive copper bus-bar is good, yield rate is high.
Comparative examples 1
The updraft continuous casting process of a kind of big load conductive copper bus-bar, comprises the following steps:
Step one, by by enamel-covered wire, cable, copper bar reclaim copper raw material segregation excision insulating wrapped thing after be compressed into recovery compression copper material, select platy structure electrolytic copper plate be suspended on above continuous up-casting melt stove; And electrolytic copper plate is suspended on above continuous up-casting melt stove by hoist engine, the height of the electrolytic copper plate that hoist engine uniform descent hangs;
Step 2, by electrolytic copper plate with reclaim compression copper material and be fed in continuous up-casting melt stove according to the ratio of 11 and to carry out melting mixing, the floating reduction oxygen barrier layer that arranges of molten copper water surface at continuous up-casting melt stove, the smelting temperature of continuous up-casting melt stove is 1180～1220 degrees Celsius; Reduction oxygen barrier layer includes the Linesless charcoal insulation reducing zone being positioned at lower floor and the graphite flakes oxygen barrier layer being positioned at upper strata, and the thickness of Linesless charcoal insulation reducing zone is 10～20 centimetres, and the thickness of graphite flakes oxygen barrier layer is 5～10 centimetres;
Step 3, the equipment for separating liquid from solid that the molten copper water of continuous up-casting melt stove is provided by fine through holes separate and enter with the recovery compression copper material not melted and electrolytic copper plate in heat-insulated cavity, and holding temperature is 1160～1180 degrees Celsius;
Step 4, the molten copper water in heat-insulated cavity is made to enter into upward continuous casting crystallizer from bottom by siphonage, upward continuous casting crystallizer carries out crystallisation by cooling by cooling water system, the inflow temperature of cooling water system is not more than 30 degrees Celsius, and the leaving water temperature of cooling water system is not more than 45 degrees Celsius;
Step 5, by the device that is pulled by the continuous up-casting copper material of crystallization in upward continuous casting crystallizer from the Base top contact of upward continuous casting crystallizer, and be pulled continuous up-casting copper material with the speed of 120～160 millimeters per minute, the continuous up-casting copper material packing rolling finally will made.
Updraft continuous casting process seriality in actual production process of above-mentioned a kind of big load conductive copper bus-bar is bad, it is easy to rupture in the process of being pulled.
Comparative examples 2
The updraft continuous casting process of a kind of big load conductive copper bus-bar, comprises the following steps:
Step one, by by enamel-covered wire, cable, copper bar reclaim copper raw material segregation excision insulating wrapped thing after be compressed into recovery compression copper material, select platy structure electrolytic copper plate be suspended on above continuous up-casting melt stove;And electrolytic copper plate is suspended on above continuous up-casting melt stove by hoist engine, the height of the electrolytic copper plate that hoist engine uniform descent hangs;
Step 2, by electrolytic copper plate with reclaim compression copper material and be fed in continuous up-casting melt stove according to the ratio of 1 (0.4～0.6) and to carry out melting mixing, the floating reduction oxygen barrier layer that arranges of molten copper water surface at continuous up-casting melt stove, the smelting temperature of continuous up-casting melt stove is 1160～1200 degrees Celsius; Reduction oxygen barrier layer includes the Linesless charcoal insulation reducing zone being positioned at lower floor and the graphite flakes oxygen barrier layer being positioned at upper strata, and the thickness of Linesless charcoal insulation reducing zone is 10～20 centimetres, and the thickness of graphite flakes oxygen barrier layer is 5～10 centimetres;
Step 3, the equipment for separating liquid from solid that the molten copper water of continuous up-casting melt stove is provided by fine through holes separate and enter with the recovery compression copper material not melted and electrolytic copper plate in heat-insulated cavity, and holding temperature is 1150～1160 degrees Celsius;
Step 4, the molten copper water in heat-insulated cavity is made to enter into upward continuous casting crystallizer from bottom by siphonage, upward continuous casting crystallizer carries out crystallisation by cooling by cooling water system, the inflow temperature of cooling water system is not more than 30 degrees Celsius, and the leaving water temperature of cooling water system is not more than 45 degrees Celsius;
Step 5, by the device that is pulled by the continuous up-casting copper material of crystallization in upward continuous casting crystallizer from the Base top contact of upward continuous casting crystallizer, and be pulled continuous up-casting copper material with the speed of 60～100 millimeters per minute, the continuous up-casting copper material packing rolling finally will made.
Updraft continuous casting process seriality in actual production process of above-mentioned a kind of big load conductive copper bus-bar is good, but production efficiency is relatively low.
Above the preferably enforcement of the present invention is illustrated; certainly; the present invention can also adopt form different from the embodiment described above; equivalent conversion that those of ordinary skill in the art make under the premise without prejudice to spirit of the present invention or change accordingly, all should belong in protection scope of the present invention.
Claims (3)
1. the updraft continuous casting process of a big load conductive copper bus-bar, it is characterised in that comprise the following steps:
Step one, by by enamel-covered wire, cable, copper bar reclaim copper raw material segregation excision insulating wrapped thing after be compressed into recovery compression copper material, select platy structure electrolytic copper plate be suspended on above continuous up-casting melt stove;
Step 2, by electrolytic copper plate with reclaim compression copper material and be fed in continuous up-casting melt stove according to the ratio of 1 (0.4～0.6) and to carry out melting mixing, the floating reduction oxygen barrier layer that arranges of molten copper water surface at continuous up-casting melt stove, the smelting temperature of continuous up-casting melt stove is 1180～1220 degrees Celsius;
Step 3, the equipment for separating liquid from solid that the molten copper water of continuous up-casting melt stove is provided by fine through holes separate and enter with the recovery compression copper material not melted and electrolytic copper plate in heat-insulated cavity, and holding temperature is 1160～1180 degrees Celsius;
Step 4, the molten copper water in heat-insulated cavity is made to enter into upward continuous casting crystallizer from bottom by siphonage, upward continuous casting crystallizer carries out crystallisation by cooling by cooling water system, the inflow temperature of cooling water system is not more than 30 degrees Celsius, and the leaving water temperature of cooling water system is not more than 45 degrees Celsius;
Step 5, by the device that is pulled by the continuous up-casting copper material of crystallization in upward continuous casting crystallizer from the Base top contact of upward continuous casting crystallizer, and be pulled continuous up-casting copper material with the speed of 120～160 millimeters per minute, the continuous up-casting copper material packing rolling finally will made.
2. the updraft continuous casting process of a kind of big load conductive copper bus-bar according to claim 1, it is characterized in that: in described step one, electrolytic copper plate is suspended on above continuous up-casting melt stove by hoist engine, and the height of the electrolytic copper plate of hoist engine uniform descent suspension.
3. the updraft continuous casting process of a kind of big load conductive copper bus-bar according to claim 1, it is characterized in that: in described step 2, reduction oxygen barrier layer includes the Linesless charcoal insulation reducing zone being positioned at lower floor and the graphite flakes oxygen barrier layer being positioned at upper strata, and the thickness of Linesless charcoal insulation reducing zone is 10～20 centimetres, the thickness of graphite flakes oxygen barrier layer is 5～10 centimetres.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610140332.9A CN105665671A (en) | 2016-03-14 | 2016-03-14 | Upward continuous casting technology for large-load electro-conductive copper bus bars |
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| CN201610140332.9A CN105665671A (en) | 2016-03-14 | 2016-03-14 | Upward continuous casting technology for large-load electro-conductive copper bus bars |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165762A (en) * | 2017-12-25 | 2018-06-15 | 安徽晋源铜业有限公司 | A kind of production control method for improving copper bar purity |
| CN108179281A (en) * | 2017-12-25 | 2018-06-19 | 安徽晋源铜业有限公司 | A kind of automation copper bar purity improves control system |
| CN115069990A (en) * | 2022-07-29 | 2022-09-20 | 宁波金田电材有限公司 | Preparation method of oxygen-free purple copper rod |
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| CN101491825A (en) * | 2009-03-06 | 2009-07-29 | 江苏大学 | High-purify upper oxygen-free copper rod production method |
| CN102990029A (en) * | 2012-12-25 | 2013-03-27 | 富威科技（吴江）有限公司 | Process for producing anaerobic copper billets in upward continuous casting method |
| WO2014001848A1 (en) * | 2012-06-29 | 2014-01-03 | Le Bronze Industriel | Crucible for a machine for continuously casting a bar or a coil of a metal alloy |
| CN104962767A (en) * | 2015-07-30 | 2015-10-07 | 绍兴市力博电气有限公司 | High-copper alloy smelting upcasting furnace |
| CN204770529U (en) * | 2015-06-24 | 2015-11-18 | 无锡锡洲电磁线有限公司 | Feeding device suitable for on draw method electrolysis copper production |
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2016
- 2016-03-14 CN CN201610140332.9A patent/CN105665671A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491825A (en) * | 2009-03-06 | 2009-07-29 | 江苏大学 | High-purify upper oxygen-free copper rod production method |
| WO2014001848A1 (en) * | 2012-06-29 | 2014-01-03 | Le Bronze Industriel | Crucible for a machine for continuously casting a bar or a coil of a metal alloy |
| CN102990029A (en) * | 2012-12-25 | 2013-03-27 | 富威科技（吴江）有限公司 | Process for producing anaerobic copper billets in upward continuous casting method |
| CN204770529U (en) * | 2015-06-24 | 2015-11-18 | 无锡锡洲电磁线有限公司 | Feeding device suitable for on draw method electrolysis copper production |
| CN104962767A (en) * | 2015-07-30 | 2015-10-07 | 绍兴市力博电气有限公司 | High-copper alloy smelting upcasting furnace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165762A (en) * | 2017-12-25 | 2018-06-15 | 安徽晋源铜业有限公司 | A kind of production control method for improving copper bar purity |
| CN108179281A (en) * | 2017-12-25 | 2018-06-19 | 安徽晋源铜业有限公司 | A kind of automation copper bar purity improves control system |
| CN115069990A (en) * | 2022-07-29 | 2022-09-20 | 宁波金田电材有限公司 | Preparation method of oxygen-free purple copper rod |
| CN115069990B (en) * | 2022-07-29 | 2024-05-14 | 宁波金田电材有限公司 | Preparation method of anaerobic copper bar |
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Application publication date: 20160615 |