CN100427230C - Composite method for casting and rolling composite plate of steel, cupper, and graphite - Google Patents
Composite method for casting and rolling composite plate of steel, cupper, and graphite Download PDFInfo
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- CN100427230C CN100427230C CNB2006101127611A CN200610112761A CN100427230C CN 100427230 C CN100427230 C CN 100427230C CN B2006101127611 A CNB2006101127611 A CN B2006101127611A CN 200610112761 A CN200610112761 A CN 200610112761A CN 100427230 C CN100427230 C CN 100427230C
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Abstract
A combined casting-rolling technology for manufacturing the composite steel-copper-graphite plate includes such steps as diffusing between steel sheet and the semi-solid slurry of copper-graphite to form a composite interface, cooling, and rolling to form coiled product. Its apparatus is also disclosed.
Description
Technical field
The present invention relates to a kind of semisolid casting complex method and device of steel, copper, graphite composite plate.
Background technology
Document " Du Yunhui. the steel-compound optimization of semisolid copper-graphite pressure; Tsing-Hua University's journal; 2005; 45 (11): 1464-1467 " on, set forth the semisolid pressure complex method of steel, copper, graphite composite plate, this method employing steel plate and copper-graphite semi-solid slurry carry out pressure under the effect of forcing press compound, because being interrupted in pressing mold, the recombination process of this method carries out, therefore, this method can only be carried out the combined shaping of steel sheet copper, graphite composite plate, can't realize the winding combined shaping of steel, copper, graphite composite plate.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiency that existing steel, copper, graphite composite plate pressure complex method " can't carry out the winding combined shaping ", and a kind of complex method and the device that can realize steel, copper, graphite composite plate winding combined shaping is provided.
The technical solution adopted for the present invention to solve the technical problems is: adopt steel plate and copper-graphite semi-solid slurry to carry out the casting combined shaping, at first in compound pouring mouth, finish the diffusion between steel plate and the copper-graphite semi-solid slurry, after forming compound interface, form the steel, copper, graphite composite plate winding through supercooling and rolling mill roll casting.
The concrete steps of complex method of the present invention:
Step 4, the cast copper-graphite semi-solid slurry carries out " race is rolled ", and the solid rate of copper-graphite semi-solid slurry is 40～50%;
Step 5, " race is rolled " reduced mill speed after 1 minute, and recombination process is carried out under stable roll casting conditions, formed steel, copper, graphite composite plate, and be 30～40s the diffusion time between steel plate and the copper graphite coating, and be 30～40s the cool time of cooling chamber.
Steel, copper, graphite composite plate semisolid casting set composite comprises: compound pouring mouth, milling train and support.
Compound pouring mouth adopts mechanical connection manner to be fixed on the support, its material is a graphite, steel plate enters compound pouring mouth from the slit at compound pouring mouth rear portion, the slit thickness a at compound pouring mouth rear portion is steel plate thickness+0.1mm, between the upper surface of steel plate and the compound pouring mouth loam cake lower surface is the copper-graphite semi-solid slurry runner, its thickness b is the copper graphite coating thickness of steel, copper, graphite composite plate, and the lower end thickness of copper-graphite semi-solid slurry cast gate also is b; Under the compound pouring mouth steel plate is cooling chamber, distance between its rear end and the copper-graphite semi-solid slurry cast gate lower end rear side is c, c is that the diffusion time between mill speed and steel plate and the copper graphite coating is long-pending, cooling chamber two sides are provided with into water swivel and water out adapter, be connected with pipeline, joint door, water pump, cooling pond, form the circulating water cooling system of compound pouring mouth, finish the cooling and the cooling of steel plate and copper-graphite semi-solid slurry, the thickness of cooling chamber is not limit, and its length d is that the time that need cool off of mill speed and steel plate and copper graphite coating is long-pending; The width of the width in slit, compound pouring mouth rear portion, the width of copper-graphite semi-solid slurry runner, copper-graphite semi-solid slurry cast gate, the width of cooling chamber are the width f of steel, copper, graphite composite plate; Compound pouring mouth front end is circular arc with rolling mill roll and contacts, and the gap e between its arc surface and the rolling mill roll arc surface is less than 0.5mm.
Milling train is selected for use can provide casting compound milling train with the smooth institute of composite plate energy requirement, and rolling mill roll is an inner-cooled water-cooled roll, and roller shell is heat-resisting steel bushing.
The invention has the beneficial effects as follows: utilize the present invention, reach in the steel, copper, graphite composite plate mechanical property on the basis of pressure complex method peer-level, realized the combined shaping of steel, copper, graphite composite plate winding.
Description of drawings
Fig. 1 is the front view of the inventive method steel, copper, graphite composite plate semisolid casting set composite.
Among the figure, 1. compound pouring mouth, 2. steel plate, 3. copper-graphite semi-solid slurry, 4. cooling chamber is 5. gone into water swivel, 6. water out adapter, 7. milling train, 8. rolling mill roll, 9. steel, copper, graphite composite plate, 10. support.
Fig. 2 is the vertical view of the inventive method steel, copper, graphite composite plate semisolid casting set composite.
The specific embodiment
As follows to specifying of the inventive method set composite in conjunction with the accompanying drawings:
Steel, copper, graphite composite plate semisolid casting set composite comprises: compound pouring mouth 1, milling train 7 and support 10.
Compound pouring mouth 1 adopts mechanical connection manner to be fixed on the support 10, its material is a graphite, steel plate 2 enters compound pouring mouth 1 from the slit at compound pouring mouth 1 rear portion, the slit thickness a at compound pouring mouth rear portion is steel plate thickness+0.1mm, between the upper surface of steel plate 2 and the compound pouring mouth 1 loam cake lower surface is the copper-graphite semi-solid slurry runner, its thickness b is the copper graphite coating thickness of steel, copper, graphite composite plate 9, and the lower end thickness of copper-graphite semi-solid slurry cast gate also is b; Under the compound pouring mouth steel plate is cooling chamber 4, distance between its rear end and the copper-graphite semi-solid slurry cast gate lower end rear side is c, c is that the diffusion time between mill speed and steel plate 2 and the copper graphite coating is long-pending, cooling chamber 4 two sides are provided with into water swivel 5 and water out adapter 6, be connected with pipeline, joint door, water pump, cooling pond, form the circulating water cooling system of compound pouring mouth 1, finish the cooling and the cooling of steel plate 2 and copper-graphite semi-solid slurry 3, the thickness of cooling chamber 4 is not limit, and its length d is that the time that need cool off of mill speed and steel plate 2 and copper graphite coating is long-pending; The width of the width in slit, compound pouring mouth rear portion, the width of copper-graphite semi-solid slurry runner, copper-graphite semi-solid slurry cast gate, the width of cooling chamber 4 are the width f of steel, copper, graphite composite plate 9; Compound pouring mouth front end is circular arc with rolling mill roll 8 and contacts, and the gap e between its arc surface and rolling mill roll 8 arc surfaces is less than 0.5mm.
Milling train 7 is selected for use can provide casting compound milling train with the smooth institute of composite plate energy requirement, and rolling mill roll 8 is an inner-cooled water-cooled roll, and roller shell is heat-resisting steel bushing.
The concrete steps of complex method of the present invention are as follows:
Embodiment one
Step 4, the cast solid rate is 40% titan bronze 3.5-3.5 graphite semi-solid slurry, carries out " race is rolled ", the thickness b of copper-graphite semi-solid slurry runner is 1.3mm;
Step 5, after " race is rolled " 1 minute, reduce mill speed, making can be after carrying out the 40s diffusion between steel plate and the titan bronze 3.5-3.5 graphite coating, through the 40s cooling of cooling chamber, forming interface shear strength through the rolling mill roll casting at last is the steel titan bronze 3.5-3.5 graphite composite plate of 125MPa again.
Embodiment two
And the difference of embodiment one is: the cooling velocity that the steel plate preheat temperature is that 600 ℃, titan bronze 3.5-4 graphite semi-solid slurry solid rate are 45%, be 35s, cooling chamber the diffusion time between steel plate and the titan bronze 3.5-4 graphite coating is 450 ℃/min, cool time to be that the cooling velocity of 35s, rolling mill roll is 350 ℃/min, and the interface shear strength of the steel titan bronze 3.5-4 graphite composite plate that obtains is 128MPa.
Embodiment three
And the difference of embodiment one is: the cooling velocity that the steel plate preheat temperature is that 650 ℃, titan bronze 3.5-5 graphite semi-solid slurry solid rate are 50%, be 30s, cooling chamber the diffusion time between steel plate and the titan bronze 3.5-5 graphite coating is 500 ℃/min, cool time to be that the cooling velocity of 30s, rolling mill roll is 400 ℃/min, and the interface shear strength of the steel titan bronze 3.5-5 graphite composite plate that obtains is 126MPa.
Claims (2)
1. a steel, copper, graphite composite plate composite method for casting and rolling is characterized in that, adopts steel plate and copper-graphite semi-solid slurry to carry out the casting combined shaping, and concrete steps are as follows:
Step 1, the steel plate that the surface is handled through degreasing, rust cleaning, hacking, immersion plating is preheated to 550～650 ℃;
Step 2 is connected the water-cooling system of compound pouring mouth and rolling mill roll, and the cooling velocity of the cooling chamber in the water-cooling system of this compound pouring mouth is 400～500 ℃/min, and the cooling velocity of rolling mill roll is 300～400 ℃/min
Step 3 starts milling train, mill speed is transferred to and remains on realization " race is rolled " speed;
Step 4, the cast copper-graphite semi-solid slurry carries out " race is rolled ", and the solid rate of copper-graphite semi-solid slurry is 40～50%;
Step 5 after " race is rolled ", reduces mill speed, and recombination process is carried out under stable roll casting conditions, forms steel, copper, graphite composite plate; Described " race is rolled " time is 1 minute, and be 30～40s the diffusion time between steel plate and the copper graphite coating, and be 30～40s the cool time of cooling chamber.
2. steel, copper, graphite composite plate casting set composite that in the described steel, copper, graphite composite plate composite method for casting and rolling of claim 1, uses, this device comprises: compound pouring mouth (1), milling train (7) and support (10); Rolling mill roll (8) is an inner-cooled water-cooled roll, and roller shell is heat-resisting steel bushing; It is characterized in that:
Compound pouring mouth (1) adopts mechanical connection manner to be fixed on the support (10), its material is a graphite, steel plate (2) enters compound pouring mouth (1) from the slit at compound pouring mouth (1) rear portion, the slit thickness a at compound pouring mouth rear portion is steel plate thickness+0.1mm, between the upper surface of steel plate (2) and compound pouring mouth (1) the loam cake lower surface is the copper-graphite semi-solid slurry runner, its thickness b is the copper graphite coating thickness of steel, copper, graphite composite plate (9), and the lower end thickness of copper-graphite semi-solid slurry cast gate also is b; Under the compound pouring mouth steel plate is cooling chamber (4), distance between its rear end and the copper-graphite semi-solid slurry cast gate lower end rear side is c, c is that the diffusion time between mill speed and steel plate (2) and the copper graphite coating is long-pending, cooling chamber (4) two sides are provided with into water swivel (5) and water out adapter (6), with pipeline, the joint door, water pump, the cooling pond connects, form the circulating water cooling system of compound pouring mouth (1), finish the cooling and the cooling of steel plate (2) and copper-graphite semi-solid slurry (3), the thickness of cooling chamber (4) is not limit, and its length d is that the time that need cool off of mill speed and steel plate (2) and copper graphite coating is long-pending; The width of the width in slit, compound pouring mouth rear portion, the width of copper-graphite semi-solid slurry runner, copper-graphite semi-solid slurry cast gate, the width of cooling chamber (4) are the width f of steel, copper, graphite composite plate (9); Compound pouring mouth front end is circular arc with rolling mill roll (8) and contacts, the little 0.5mm of gap e between its arc surface and rolling mill roll (8) arc surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101127611A CN100427230C (en) | 2006-09-01 | 2006-09-01 | Composite method for casting and rolling composite plate of steel, cupper, and graphite |
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| CNB2006101127611A CN100427230C (en) | 2006-09-01 | 2006-09-01 | Composite method for casting and rolling composite plate of steel, cupper, and graphite |
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| CN1915546A CN1915546A (en) | 2007-02-21 |
| CN100427230C true CN100427230C (en) | 2008-10-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021291B (en) * | 2010-12-30 | 2012-05-23 | 北京交通大学 | Uniform after-treatment method for steel/magnesium bronze 3-3.5 boron nitride semisolid composite board |
| CN102010953B (en) * | 2010-12-30 | 2012-09-05 | 北京交通大学 | Homogenization post-processing method of steel-red copper semisolid composite plate |
| CN102021289B (en) * | 2010-12-30 | 2012-05-23 | 北京交通大学 | Method for evenly post-treating steel-titanium bronze 4.3-5 graphite semisolid compound plate |
| CN102873096B (en) * | 2012-10-24 | 2015-12-02 | 东北大学 | A kind of solid/semi-solid compound molding device and method preparing composite metal plate band |
| CN116511471A (en) * | 2023-04-26 | 2023-08-01 | 东莞市维康汽车电子有限公司 | Preparation method of copper and stainless steel composite metal plate |
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