CN103008592B - Oxygen-free copper casting blank crystallizer for up-drawn continuous casting - Google Patents
Oxygen-free copper casting blank crystallizer for up-drawn continuous casting Download PDFInfo
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- CN103008592B CN103008592B CN201210571467.2A CN201210571467A CN103008592B CN 103008592 B CN103008592 B CN 103008592B CN 201210571467 A CN201210571467 A CN 201210571467A CN 103008592 B CN103008592 B CN 103008592B
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Abstract
The invention discloses an oxygen-free copper casting blank crystallizer for up-drawn continuous casting, wherein a flexible heat conduction/insulation layer is arranged on a circumferential cavity wall at a connection part between the interior of a hollow cavity of a cooling water jacket and a mold cavity of a graphite mould, so that a vacuum oxygen-isolation state of molten copper can be realized in a casting process, and in addition, the effects of lubrication and heat conduction can be achieved in a process of drawing an oxygen-free copper casting blank so as to reduce the temperature of the casting blank; and meanwhile, as a cooling water circulating manner with incoming water at the top and outgoing water at the bottom is adopted in the crystallizer and a higher water level is kept in the cooling water jacket, the cooling manner can be used to prevent the oxygen-free copper casting blank from being overcooled in a crystallization process, thus, gradient cooling is realized, and the casting quality is improved. The crystallizer meets the requirements for producing oxygen-free copper with low oxygen content (not more than 5ppm), low resistivity (not more than 0.017593/omega mm<2>/m), high density and wide width, and the high-quality oxygen-free copper casting blank can be obtained.
Description
Technical field
the present invention relates to a kind of continuous up-casting oxygen-free copper casting blank crystallizer.
Background technology
adopting upward-casting process to produce oxygen-free copper is by making copper liquid shaping in crystallizer by copper solution causing in crystallizer, and pull out required specification strand, barrier, the formability of the quality of strand, oxygen content and density and crystallizer and cooling procedure close relation.Without oxygen barrier design in the forming cavity of existing crystallizer used for up-drawing continuous casting and continuous up-casting casting in bronze billet crystallizer mould, and cooling water circulation direction is bottom in and top out, can not meet low oxygen content (≤5ppm), low-resistivity (≤0.017593/ Ω mm completely
2
/ m), the production requirement of high density wide cut oxygen-free copper.
Summary of the invention
the object of this invention is to provide a kind of continuous up-casting oxygen-free copper casting blank crystallizer, thus meet the production requirement of low oxygen content, low-resistivity, high density wide cut oxygen-free copper.
for achieving the above object, the technical solution used in the present invention is: a kind of continuous up-casting oxygen-free copper casting blank crystallizer, described crystallizer comprises the cooling jacket with hollow cavity, be installed in the graphite mo(u)ld bottom described cooling jacket, described graphite mo(u)ld has the die cavity for the described oxygen-free copper strand of the shaping formation of copper water, described die cavity top is connected with described hollow cavity, in described hollow cavity on the described graphite mo(u)ld described die cavity place circumferential cavity wall on be fixedly provided with flexible heat conduction oxygen barrier layer, the bottom of described graphite mo(u)ld has the feeding mouth be communicated with described die cavity, the top of described cooling jacket offers the discharging opening be connected with described hollow cavity, described cooling jacket also offers ring and be located at cooling chamber in described hollow cavity perimembranous, described cooling jacket upper end offers the water filling port that multiple and described cooling chamber is connected, the bottom of described cooling jacket offers the delivery port that multiple and described cooling chamber is connected, described delivery port is provided with mozzle, described mozzle vertically upwards extends, the mouth of pipe of described mozzle is 2/3 ~ 1 times of described water filling port and described delivery port vertically distance apart from described delivery port height vertically.
preferably, described flexible heat conduction oxygen barrier layer is graphite flakes.
preferably, described graphite mo(u)ld is fixedly installed on the bottom of described cooling jacket by fixed cover.
further preferably, described fixed cover bottom is also arranged with protective sleeve regularly, and the end of described graphite mo(u)ld exposing described fixed cover is housed in the inner chamber of described protective sleeve.
preferably, the circumferential side wall of described cooling jacket is also fixedly provided with multiple reinforcement.
further preferably, the circumferential side wall of described cooling jacket offers multiple groove, be embedded in described multiple groove to described multiple reinforcement corresponding matching.
still more preferably, the cross section of described groove is rounded, and accordingly, the cross section of described reinforcement is rounded, and the diameter of section of described reinforcement is 60 ~ 80mm.
preferably, described mozzle is zigzag.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: a kind of continuous up-casting oxygen-free copper casting blank crystallizer of the present invention, wherein by arranging flexible heat conduction oxygen barrier layer in the hollow cavity of cooling jacket with on the circumferential cavity wall of the die cavity joint of graphite mo(u)ld, thus can make copper water in casting process, realize vacuum oxygen barrier state, and lubrication and conductive force can be played at oxygen-free copper strand in trailed process, reduce the temperature of strand, adopt the cooling water circulation mode of upper entering and lower leaving in this crystallizer simultaneously, and make in cooling jacket, to keep higher water level, this type of cooling can avoid oxygen-free copper strand excessively cold in crystallization process, realize ladder cooling, improve castability.This crystallizer meets low oxygen content (≤5ppm), low-resistivity (≤0.017593/ Ω mm
2
/ m), the production requirement of high density wide cut oxygen-free copper, high-quality oxygen-free copper strand can be obtained.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of crystallizer of the present invention;
accompanying drawing 2 is A-A portion sectional structure schematic diagram in accompanying drawing 1.
Detailed description of the invention
below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is further elaborated.
see Fig. 1, a kind of continuous up-casting oxygen-free copper casting blank crystallizer shown in Fig. 2, this crystallizer comprises cooling jacket 1, be fixedly installed on the graphite mo(u)ld 2 bottom cooling jacket 1, cooling jacket 1 has hollow cavity, graphite mo(u)ld 2 has the die cavity for copper water shaping formation oxygen-free copper strand, the top of this die cavity is connected with the hollow cavity of cooling jacket 1, the bottom of graphite mo(u)ld 2 has the feeding mouth 12 be connected with its die cavity, the top of cooling jacket 1 offers the discharging opening 11 with its hollow intracavity inter-connection, copper water enters shaping formation oxygen-free copper strand in the die cavity of graphite mo(u)ld 2 through feeding mouth 12, this oxygen-free copper strand is pulled out from discharging opening 11 in the hollow cavity of cooling jacket 1 again.On the circumferential cavity wall at graphite mo(u)ld 2 upper impression place, flexible heat conduction oxygen barrier layer 7 is fixedly provided with in the hollow cavity of cooling jacket 1, this flexible heat conduction oxygen barrier layer 7 can select graphite flakes, can prevent the oxygen in air from entering in the die cavity of graphite mo(u)ld 2 like this and enter in just shaping oxygen-free copper strand, making to realize vacuum oxygen barrier state in copper water casting process.In addition, adopt graphite flakes as flexible heat conduction oxygen barrier layer 7, it can also play lubrication and conductive force in oxygen-free copper strand distraction procedure, reduces casting temperature.
see Fig. 1, shown in Fig. 2, a large amount of heats is discharged due in the process that copper water crystallization is shaping, cooling jacket 1 also offers ring and be located at cooling chamber in hollow cavity perimembranous, cooling jacket 1 upper end offers the water filling port 8 that multiple and above-mentioned cooling chamber is connected, the bottom of cooling jacket 1 offers the delivery port 9 that multiple and above-mentioned cooling chamber is connected, delivery port 9 is provided with mozzle 5, mozzle 5 can be set to " Z " font, its mouth of pipe 10 is positioned at the top of delivery port 9, the mouth of pipe 10 is water filling port 8 and 2/3 ~ 1 times of delivery port 9 vertically distance apart from delivery port 9 height vertically.Such flow of cooling water adopts the upper entering and lower leaving circulation route flowing into below from the top of cooling jacket 1, avoids the phenomenon that crystallization process is excessively cold, achieves ladder cooling, effectively can improve castability.Meanwhile, the water that mozzle 5 can make to remain in the cooling chamber of cooling jacket 1 enough water levels is set, thus ensures the cooling effect to the oxygen-free copper strand in hollow cavity.Here, water filling port 8, delivery port 9 are respectively arranged with two, and accordingly, mozzle 5 has two.
shown in Fig. 1, Fig. 2, graphite mo(u)ld 2 is fixedly installed on the bottom of cooling jacket 1 by fixed cover 3, and one end of graphite mo(u)ld 2 is exposed in the outside of fixed cover 3.In order to protect graphite mo(u)ld, the bottom of fixed cover 3 is also arranged with protective sleeve 4 regularly, namely the end of graphite mo(u)ld 2 exposing fixed cover 3 is housed in the inner chamber of protective sleeve 4.In the present embodiment, in order to the rigidity vertically gone up cooling jacket 1 is strengthened, the circumferential side wall of cooling jacket 1 is also provided with multiple reinforcement 6 regularly, here, reinforcement 6 is arranged in the following manner: the circumferential side wall of cooling jacket 1 offers multiple groove, that is this multiple reinforcement 6 is embedded to corresponding matching in above-mentioned multiple groove, the stainless steel material that reinforcement 6 selects rigidity good makes, its cross section can be set to circle, accordingly, the cross section of above-mentioned groove is also rounded, the diameter of section of reinforcement 6 and groove all can be set to 60 ~ 80mm.
in sum, continuous up-casting oxygen-free copper casting blank crystallizer of the present invention, wherein by arranging flexible heat conduction oxygen barrier layer 7 in the hollow cavity of cooling jacket 1 with on the circumferential cavity wall of the die cavity joint of graphite mo(u)ld 2, thus can make copper water in casting process, realize vacuum oxygen barrier state, and lubrication and conductive force can be played at oxygen-free copper strand in trailed process, reduce the temperature of strand, adopt the cooling water circulation mode of upper entering and lower leaving in this crystallizer simultaneously, and make to keep higher water level in cooling jacket 1, this type of cooling can avoid oxygen-free copper strand excessively cold in crystallization process, realize ladder cooling, improve castability, the oxygen-free copper strand obtained through this mould casting meets low oxygen content (≤5ppm), low-resistivity (≤0.017593/ Ω mm
2
/ m), highdensity performance requirement, simultaneously can obtain the larger oxygen-free copper strand of wide cut through this crystallizer crystalline forming.
above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. a continuous up-casting oxygen-free copper casting blank crystallizer, it is characterized in that: described crystallizer comprises the cooling jacket with hollow cavity, be installed in the graphite mo(u)ld bottom described cooling jacket, described graphite mo(u)ld has the die cavity for the described oxygen-free copper strand of the shaping formation of copper water, described die cavity top is connected with described hollow cavity, in described hollow cavity on the described graphite mo(u)ld described die cavity place circumferential cavity wall on be fixedly provided with flexible heat conduction oxygen barrier layer, the bottom of described graphite mo(u)ld has the feeding mouth be communicated with described die cavity, the top of described cooling jacket offers the discharging opening be connected with described hollow cavity, described cooling jacket also offers ring and be located at cooling chamber in described hollow cavity perimembranous, described cooling jacket upper end offers the water filling port that multiple and described cooling chamber is connected, the bottom of described cooling jacket offers the delivery port that multiple and described cooling chamber is connected, described delivery port is provided with mozzle, described mozzle vertically upwards extends, the mouth of pipe of described mozzle is 2/3 ~ 1 times of described water filling port and described delivery port vertically distance apart from described delivery port height vertically.
2. continuous up-casting oxygen-free copper casting blank crystallizer according to claim 1, is characterized in that: described flexible heat conduction oxygen barrier layer is graphite flakes.
3. continuous up-casting oxygen-free copper casting blank crystallizer according to claim 1, is characterized in that: described graphite mo(u)ld is fixedly installed on the bottom of described cooling jacket by fixed cover.
4. continuous up-casting oxygen-free copper casting blank crystallizer according to claim 3, it is characterized in that: described fixed cover bottom is also arranged with protective sleeve regularly, the end of described graphite mo(u)ld exposing described fixed cover is housed in the inner chamber of described protective sleeve.
5. continuous up-casting oxygen-free copper casting blank crystallizer according to claim 1, is characterized in that: the circumferential side wall of described cooling jacket is also fixedly provided with multiple reinforcement.
6. continuous up-casting oxygen-free copper casting blank crystallizer according to claim 5, is characterized in that: the circumferential side wall of described cooling jacket offers multiple groove, is embedded in described multiple groove to described multiple reinforcement corresponding matching.
7. continuous up-casting oxygen-free copper casting blank crystallizer according to claim 6, is characterized in that: the cross section of described groove is rounded, and accordingly, the cross section of described reinforcement is rounded, and the diameter of section of described reinforcement is 60 ~ 80mm.
8. continuous up-casting oxygen-free copper casting blank crystallizer according to claim 1, is characterized in that: described mozzle is zigzag.
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|---|---|---|---|
| CN201210571467.2A CN103008592B (en) | 2012-12-25 | 2012-12-25 | Oxygen-free copper casting blank crystallizer for up-drawn continuous casting |
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|---|---|---|---|
| CN201210571467.2A CN103008592B (en) | 2012-12-25 | 2012-12-25 | Oxygen-free copper casting blank crystallizer for up-drawn continuous casting |
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| CN103008592B true CN103008592B (en) | 2015-07-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478690B (en) * | 2015-11-29 | 2018-08-10 | 无锡超洲科技有限公司 | Graphite jig for up-drawing method crystallizer |
| CN113245516B (en) * | 2021-04-30 | 2022-08-23 | 杭州富通电线电缆有限公司 | Copper rod production process and crystallizer |
Citations (8)
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| GB145793A (en) * | 1918-12-02 | 1922-01-03 | Fritz Doehle | Improved process for the casting of pipes and the like |
| GB793356A (en) * | 1953-09-30 | 1958-04-16 | Stewarts & Lloyds Ltd | An improved method and apparatus for continuously casting metal bars, billets, or the like |
| CN2076887U (en) * | 1990-12-10 | 1991-05-15 | 山东省淄博市淄川无氧铜材厂 | Up drawing continuous casting crystallizer |
| CN2412681Y (en) * | 2000-03-31 | 2001-01-03 | 夏源河 | Oxygen-free continuous casting crystallizer |
| CN201291292Y (en) * | 2008-10-17 | 2009-08-19 | 富威科技（吴江）有限公司 | Copper strip blank crystallizer for up-drawing continuous casting |
| CN201399573Y (en) * | 2009-02-27 | 2010-02-10 | 富威科技（吴江）有限公司 | Crystallizer for up-drawing continuous casting |
| CN101722283A (en) * | 2008-10-10 | 2010-06-09 | 上海格林赛高新材料有限公司 | Copper bar up-casting crystallizer for continuous casting machine |
| CN203030846U (en) * | 2012-12-25 | 2013-07-03 | 富威科技（吴江）有限公司 | Oxygen-free copper casting blank crystallizer for upward continuous casting |
-
2012
- 2012-12-25 CN CN201210571467.2A patent/CN103008592B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB145793A (en) * | 1918-12-02 | 1922-01-03 | Fritz Doehle | Improved process for the casting of pipes and the like |
| GB793356A (en) * | 1953-09-30 | 1958-04-16 | Stewarts & Lloyds Ltd | An improved method and apparatus for continuously casting metal bars, billets, or the like |
| CN2076887U (en) * | 1990-12-10 | 1991-05-15 | 山东省淄博市淄川无氧铜材厂 | Up drawing continuous casting crystallizer |
| CN2412681Y (en) * | 2000-03-31 | 2001-01-03 | 夏源河 | Oxygen-free continuous casting crystallizer |
| CN101722283A (en) * | 2008-10-10 | 2010-06-09 | 上海格林赛高新材料有限公司 | Copper bar up-casting crystallizer for continuous casting machine |
| CN201291292Y (en) * | 2008-10-17 | 2009-08-19 | 富威科技（吴江）有限公司 | Copper strip blank crystallizer for up-drawing continuous casting |
| CN201399573Y (en) * | 2009-02-27 | 2010-02-10 | 富威科技（吴江）有限公司 | Crystallizer for up-drawing continuous casting |
| CN203030846U (en) * | 2012-12-25 | 2013-07-03 | 富威科技（吴江）有限公司 | Oxygen-free copper casting blank crystallizer for upward continuous casting |
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Address after: 215000 Linhu Economic Zone, Qidu Town, Wujiang District, Suzhou, Jiangsu Province (south of Chuangxin Road) Patentee after: Jiangsu Fuwei Technology Co.,Ltd. Address before: 215234 North side of Provincial Road 230, Linhu Economic Zone, Qidu Town, Wujiang City, Suzhou City, Jiangsu Province Patentee before: FULLWAY TECHNOLOGY (WUJIANG) CO.,LTD. |
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