CN2213035Y - Thermometal compounded horizontal continuous casting crystallizer internal member - Google Patents
Thermometal compounded horizontal continuous casting crystallizer internal member Download PDFInfo
- Publication number
- CN2213035Y CN2213035Y CN 94238006 CN94238006U CN2213035Y CN 2213035 Y CN2213035 Y CN 2213035Y CN 94238006 CN94238006 CN 94238006 CN 94238006 U CN94238006 U CN 94238006U CN 2213035 Y CN2213035 Y CN 2213035Y
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- Prior art keywords
- copper
- alloy
- crystallizer
- utility
- model
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an internal sleeve of a crystallizer for horizontal continuous casting and the internal sleeve is compounded by duplex metal. The outer layer 1 of the utility model is made of red copper, and the inner layer 2 of the utility model is made of copper-cobalt-beryllium alloy or copper-chromium-zirconium alloy of the copper alloy. The junction surfaces of the inner layer and the outer layer are bonded by metallurgy. Compared with the internal sleeve of the crystallizer made of single metal of the copper-cobalt-beryllium alloy existing in the prior art, the utility model has the advantages of better heat conductivity, better abrasion resistant performance and better plasticity, and therefore, the service life of the utility model is longer, and the cost is lower.
Description
The utility model relate to a kind of by the compound horizontal casting of bimetallic with overlapping in the crystallizer, it is the crucial consumable accessory in steel mill's horizontal caster.
Horizontal casting is extremely abominable with the condition of work of cover in the crystallizer; Draw in the steel billet process in casting, the inner surface of cover directly contact with the high-temperature steel liquation in the crystallizer, and steel billet pulls out from pressure wherein, and its outer surface contacts with mobile cooling water, and it is forced to cool off.Therefore, cover must have high thermal conductivity, high-fire resistance, high-wearing feature, high strength and have plasticity preferably in the crystallizer.Be difficult to satisfy fully above-mentioned requirements by cover in a kind of metal crystallizer.At present, horizontal casting is made with the Cu-Cr-Be alloy that adopt of cover in the crystallizer more both at home and abroad.Cover in the single metal crystallizer of this Cu-Cr-Be alloy, though can be used for horizontal casting, its price is very expensive, particularly its service life is shorter.Its reason: one, its thermal conductivity is on the low side, has only about 50% of red copper thermal conductivity, because contain cobalt, beryllium alloy element and other impurity element that reduces thermal conductivity in the copper-cobalt alloy; Two, its intensity and wearability are high not enough, because for making its thermal conductivity be unlikely low, the content of its alloy element cobalt, beryllium must be strict controlled in the lower scope; Three, its plasticity ratio red copper is poor, draws in the steel billet process in casting, and under very big temperature stress effect, cover occurs the possibility that bursts in this crystallizer.
The purpose of this utility model provides a kind of by overlapping in the compound crystallizer of red copper-copper alloy dual-metal, and it has contained the advantage separately of red copper and copper alloy, makes its comprehensive serviceability be better than any copper alloy.
The purpose of this utility model is achieved in that cover is composited by red copper-copper alloy double-level-metal in the crystallizer; Directly the internal layer that contacts with molten steel is to adopt the Cu-Cr-Be alloy or the Cu-Cr-Zr alloy that have high strength, high rotproofness, high-fire resistance in the copper alloy to make; The skin that contacts with cooling water then is to adopt the red copper with high thermal conductivity, high-ductility to make; The outer bed thickness of red copper, the copper alloy internal layer is thin, and is outer than more than the interior bed thickness twice; The interface of inside and outside double layer of metal is complete seam, promptly is metallurgical binding.
The utility model is compared by overlapping in the single metal crystallizer of Cu-Cr-Be alloy with existing, has following advantage and good effect:
1. because its internal layer contains the beryllium amount, to contain the cobalt amount higher, thereby its intensity, hardness and wearability all are higher than cover in the existing Cu-Cr-Be alloy crystallizer;
2. because its skin be a red copper, and its thickness accounts for more than 2/3rds of gross thickness of cover in the crystallizer again, thereby the interior height that overlaps of the existing Cu-Cr-Be alloy crystallizer of its thermal conductivity ratio;
3. because its skin all good red copper that is plasticity and heat conductivility, thereby it draws in the steel billet process at continuous casting and can not burst because of thermal (temperature difference) stress.
4. its manufacturing cost is a little less than overlapping in the existing Cu-Cr-Be alloy crystallizer, and its service life is longer.
Accompanying drawing is one of embodiment of the present utility model.
Accompanying drawing is the longitudinal profile schematic diagram that overlaps in the crystallizer of drawing garden steel billet.
Among the figure, outer 1 is red copper, and internal layer 2 is a Cu-Cr-Be alloy.One of its manufacturing process is: be ready to earlier cover blank in red copper external sleeve blank and the Cu-Cr-Be alloy respectively, adopt the cold extrusion thermal diffusion welding technology that inside and outside cover seam is become an integral workblank, again integral workblank is heat-treated, it is machined into overlaps finished product in the crystallizer then.
The utility model can be designed and manufactured into drawing garden steel billet, also can be designed and manufactured into draw billet or rectangle steel billet crystallizer in the cover.
Claims (2)
1, by the compound horizontal casting of bimetallic with overlapping in the crystallizer, it is characterized in that: it is composited by red copper-copper alloy double-level-metal, and outer 1 is red copper, and internal layer 2 is a copper alloy, the faying face of inside and outside layer is a metallurgical binding, and outer 1 than more than the internal layer 2 thick twices.
2, cover in the crystallizer according to claim 1, it is characterized in that: its internal layer is Cu-Cr-Be alloy or the Cu-Cr-Zr alloy in the copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238006 CN2213035Y (en) | 1994-08-16 | 1994-08-16 | Thermometal compounded horizontal continuous casting crystallizer internal member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238006 CN2213035Y (en) | 1994-08-16 | 1994-08-16 | Thermometal compounded horizontal continuous casting crystallizer internal member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2213035Y true CN2213035Y (en) | 1995-11-22 |
Family
ID=33845538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94238006 Expired - Fee Related CN2213035Y (en) | 1994-08-16 | 1994-08-16 | Thermometal compounded horizontal continuous casting crystallizer internal member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2213035Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909240A (en) * | 2014-04-10 | 2014-07-09 | 广州齐达材料科技有限公司 | Composite copper bush and preparation method thereof |
-
1994
- 1994-08-16 CN CN 94238006 patent/CN2213035Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909240A (en) * | 2014-04-10 | 2014-07-09 | 广州齐达材料科技有限公司 | Composite copper bush and preparation method thereof |
| CN103909240B (en) * | 2014-04-10 | 2016-01-27 | 广州齐达材料科技有限公司 | A kind of compound copper sheathing and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |