CN104117644B - A kind of metal strand apparatus for continuously production that compression casting is provided and method - Google Patents
A kind of metal strand apparatus for continuously production that compression casting is provided and method Download PDFInfo
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- CN104117644B CN104117644B CN201410341270.9A CN201410341270A CN104117644B CN 104117644 B CN104117644 B CN 104117644B CN 201410341270 A CN201410341270 A CN 201410341270A CN 104117644 B CN104117644 B CN 104117644B
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Abstract
The invention discloses a kind of metal strand apparatus for continuously production that compression casting is provided, fusing stove including hollow, the furnace chamber of hollow it is provided with in fusing stove, the sidewall of furnace chamber is provided with charge door, screw rod it is provided with in furnace chamber, one end of screw rod is stretched out outside furnace chamber, coupled logical crystallizer it is connected in furnace chamber lower end, the sidewall of crystallizer is disposed with outlet and water inlet from bottom to top, crystallizer is used for cooling down metal strand, the traction machine being further arranged below tractive metal strand of crystallizer, the present invention also provides for the method for continuous production of a kind of metal strand, utilize these apparatus and method to solve the metal strand existed in prior art to loosen, uneven components and coarse grains, ropy problem.
Description
Technical field
The invention belongs to metal strand technical field, be specifically related to a kind of metal strand apparatus for continuously production that compression casting is provided, the invention still further relates to the method for continuous production of a kind of metal strand.
Background technology
The machine-shaping of metal is often firstly the need of making ingot casting after metal molten, then ingot casting rolled, extrude, the plastic forming such as stretching.The quality of the ingot quality processability to metal, and after molding, the performance of metal material plays very crucial effect, such as homogeneity of ingredients, consistency, grain size, surface quality etc..Existing cast metals production method have vertical continuously (or semicontinuous) ingot casting, horizontal continuity ingot casting, on draw continuous casting, continuous casting and rolling etc., be normal pressure ingot casting.Most metals become ingot casting from melt solidifying, and the degree that volume reduces is relatively big, are easily formed loose in process of setting in crystal grain.On the other hand, metal bath tends to dissolve the gas (such as hydrogen) of larger proportion, decline when solidification will discharge with dissolubility, ingot casting is formed bubble.Obviously, both defects will reduce the consistency of ingot casting, reduces ingot quality.In actual production, in order to improve the consistency of ingot casting, often suitably increase liquid level during casting, reach certain pressurized effect by melt self static pressure.But, this pressure is limited, is usually no more than 0.05MPa, and ingot casting yet suffers from defects such as loosening.
Furthermore, metal situation according to thermograde in process of setting, crystal is column crystal or dendritic growth, and the crystal grain after solidification is often comparatively thick, and is susceptible to the phenomenon of uneven components, and this is obvious especially in the middle of the solidification of alloy.There is the defect of uneven components and coarse grains in ingot casting, this processing that can affect material and serviceability.
Summary of the invention
It is an object of the invention to provide a kind of metal strand apparatus for continuously production that compression casting is provided, solve that the metal strand existed in prior art is loose, uneven components and coarse grains, ropy problem.
It is a further object of the present invention to provide the method for continuous production of a kind of metal strand.
First technical scheme of the present invention is, a kind of metal strand apparatus for continuously production that compression casting is provided, fusing stove including hollow, the furnace chamber of hollow it is provided with in fusing stove, the sidewall of furnace chamber is provided with charge door, screw rod it is provided with in furnace chamber, one end of screw rod is stretched out outside furnace chamber, furnace chamber lower end is connected to coupled logical crystallizer, the sidewall of crystallizer is disposed with outlet and water inlet from top to bottom, crystallizer is used for cooling down metal strand, the traction machine being further arranged below tractive metal strand of crystallizer.
The feature of the present invention also resides in,
On the bottom surface of fusing stove and the position of corresponding furnace chamber is provided with sealing gasket, and crystallizer is fixed on fusing stove by sealing gasket.
Furnace chamber and screw rod are made up of aluminium oxide ceramics.
Second technical scheme of the present invention is, the method for continuous production of a kind of metal strand, adopts the metal strand apparatus for continuously production that can provide compression casting, specifically implements according to following steps:
Step 1, the metal strand apparatus for continuously production that can provide compression casting is started, by the heating temperatures in furnace chamber, start screw rod and rotate, and open the cooling water of crystallizer；
Step 2, raw metal is continuously added into the metal strand of compression casting can be provided to make continuously
In manufacturing apparatus；
Step 3, adjusting the cooling water inflow of the rotating speed of screw rod and crystallizer, start casting, raw metal forms metal bath in furnace chamber, and metal bath is cooled into metal strand through crystallizer；
Step 4, start continuous traction machine, metal strand is involved.
The feature of the present invention also resides in,
The heating temperatures of furnace chamber to molten metal phase line above 50-200 DEG C in step 1；Furnace chamber is vertical, horizontal or inclined is arranged.
Raw metal is melt liquid or solid particle.
In step 3, the direction of rotation of screw rod is backpitch angular direction, and rotating speed is 10-500 rev/min.
The tractive manner of the continuous traction machine in step 4 for drawing-stop-pull-type or draw-stop-anti-push-pull, hauling speed is 10mm/min-200mm/min.
The invention has the beneficial effects as follows: in apparatus of the present invention, screw rod can provide thrust when not moving for melt, and reach stable maximum in the end thrust of screw rod, screw speed is more big, the pressure provided is also more big, maximum up to 1MPa, thus realizing compression casting, effectively put forward the consistency of metal strand, reach or close to the theoretical value of density metal.Meanwhile, the screw rod of rotation is returned melt and is provided revolving force, thus constantly interrupt the crystal of first forming core growth when crystallization, it is achieved grain refinement, under identical casting condition, grain size can refine half to one order of magnitude.Compression casting, by improving consistency and the degree of grain refinement of metal strand, is effectively improved the toughness of strand, utilizes the elongation percentage of the metal strand of this device manufacture can improve 2%-8%.Along with constantly carrying out of traction, raw material is continuously added, and this device can realize the continuous preparation of high-quality metal strand.By changing structure and the shape of crystallization, utilize this device can produce the metallic rod base of different size, slab and pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention can provide the metal strand apparatus for continuously production of compression casting.
In figure, 1. fusing stove, 2. screw rod, 3. crystallizer, 4. traction machine, 5. furnace chamber, 6. charge door, 7. sealing gasket, 8. metal bath, 9. metal strand, 10. water inlet, 11. outlets.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The present invention provides a kind of metal strand apparatus for continuously production providing compression casting, fusing stove 1 including hollow, the furnace chamber 5 of hollow it is provided with in fusing stove 1, the sidewall of furnace chamber 5 is provided with charge door 6, screw rod 2 it is provided with in furnace chamber 5, one end of screw rod 2 is stretched out outside furnace chamber 5, coupled logical crystallizer 3 it is connected in furnace chamber 5 lower end, the sidewall of crystallizer 3 is disposed with outlet 11 and water inlet 10 from top to bottom, crystallizer 3 is used for cooling down metal strand 9, the traction machine 4 being further arranged below tractive metal strand 9 of crystallizer 3.
On the bottom surface of fusing the stove 1 and position of corresponding furnace chamber 5 is provided with sealing gasket 7, and crystallizer 3 is fixed on fusing stove 1 by sealing gasket 7.
The method for continuous production of a kind of metal strand of this offer of the present invention, employing can provide the metal strand apparatus for continuously production of compression casting, specifically implement according to following steps: step 1, the metal strand apparatus for continuously production that can provide compression casting is started, by the heating temperatures in furnace chamber 5, start screw rod 2 to rotate, and open the cooling water of crystallizer 3；
Step 2, raw metal is continuously added in the metal strand apparatus for continuously production that compression casting can be provided；
Step 3, adjusting the cooling water inflow of the rotating speed of screw rod 2 and crystallizer 3, start casting, form metal bath 8 in furnace chamber 5, metal bath 8 is cooled into metal strand 9 through crystallizer 3；
Step 4, start continuous traction machine, metal strand is involved.
The heating temperatures of furnace chamber to molten metal phase line above 50-400 DEG C in step 1, when temperature is too low, melt viscosity is big, affect burn-off rate during virgin material interpolation simultaneously；The too high then impact casting stability of temperature, wastes energy consumption simultaneously；Furnace chamber 5 is arranged in vertical, horizontal or inclined.Raw metal is melt liquid or solid particle.In step 3, the direction of rotation of screw rod 2 is backpitch angular direction, and rotating speed is 10-500 rev/min, when rotating speed is too small, it is provided that limited pressure, it is impossible to meet the requirement of compression casting；When rotating speed is excessive, crystallization place liquid level is unstable, causes the instability of casting.The tractive manner of the continuous traction machine in step 4 for drawing-stop-pull-type or draw-stop-anti-push-pull, hauling speed is 20mm/min-200mm/min, crosses and easily breaks slowly, too fast easy bleedout or pull out hollow ingot.
Embodiment 1
A kind of method for continuous production of Φ 16mm copper bar base, first fusing stove 1 is started, furnace chamber 6 is heated to 1200 DEG C, screw rod 2 is started and speed governing is to 20r/min, the water inlet 10 of crystallizer 3 and outlet 11 are opened, cooling water is made to start flowing, the fine copper granule that composition is 99.99% is slowly added to from charge door 6, add fine copper particulate material rapid melting and under the effect of screw rod to crystallizer direction advance, when material is added into 3/4ths right position of screw rod, start traction machine 4, with the speed of 40mm/min, fine copper bar base 9 is drawn, the rotating speed of screw rod 2 is increased to 100r/min simultaneously, regulate the size of water inlet 10 in crystallizer 3, make distraction procedure smooth.From charge door 6, supplement fine copper particulate material, it is achieved the continuous production of high-quality fine copper bar base in good time.With the copper bar base that this method produces, any surface finish, consistency reaches 8.9g/cm3, and mean grain size is 1mm, conductivity 101%IACS, and elongation percentage reaches 42%.
Embodiment 2
A kind of method for continuous production of Φ 8mm aluminium alloy rod base, first fusing stove 1 is started, furnace chamber 6 is heated to 800 DEG C, screw rod 2 is started and speed governing is to 10r/min, the water inlet 10 of crystallizer 3 and outlet 11 are opened, cooling water is made to start flowing, the aluminium alloy melt that the trade mark is 3003 is slowly added to from charge door 6, the aluminium alloy melt added advances to crystallizer direction under the effect of screw rod, when material is added into 3/4ths right position of screw rod, start traction machine 4, with the speed of 200mm/min, aluminium alloy rod base 9 is drawn, the rotating speed of screw rod 2 is increased to 500r/min simultaneously, regulate the size of water inlet 10 in crystallizer 3, make distraction procedure smooth.From charge door 6, supplement 3003 aluminium alloy melts, it is achieved the continuous production of high-quality LY21 aluminium alloy rod base in good time.The consistency of the 3003 aluminium alloy rod bases produced with this method reaches 2.71g/cm3, and elongation percentage reaches 26%.
Embodiment 3
A kind of method for continuous production of Φ 60 × 3mm brass pipe blanks, first fusing stove 1 is started, furnace chamber 6 is heated to 1050 DEG C, screw rod 2 is started and speed governing is to 20r/min, the water inlet 10 of crystallizer 3 and outlet 11 are opened, cooling water is made to start flowing, the pyrite granule that the trade mark is H65 is slowly added to from charge door 6, add pyrite particulate material rapid melting and under the effect of screw rod to crystallizer direction advance, traction machine 4 is started when material is added into 3/4ths right position of screw rod, with the speed of 20mm/min, fine copper bar base 9 is drawn, the rotating speed of screw rod 2 is increased to 100r/min simultaneously, regulate the size of water inlet 10 in crystallizer 3, make distraction procedure smooth.From charge door 6, supplement pyrite particulate material, it is achieved the continuous production of high-quality yellow copper tube billet in good time.This brass pipe blanks grain size reaches 2mm, and elongation percentage reaches 35%, is significantly better than conventional flat casting level continuously.
Claims (1)
1. the metal strand method for continuous production that compression casting can be provided, it is characterized in that, employing can provide the metal strand apparatus for continuously production of compression casting, it includes the fusing stove (1) of hollow, the furnace chamber (5) of hollow it is provided with in described fusing stove (1), the sidewall of described furnace chamber (5) is provided with charge door (6), screw rod (2) it is provided with in described furnace chamber (5), furnace chamber (5) is stretched out outward in one end of described screw rod (2), described furnace chamber (5) lower end is connected to coupled logical crystallizer (3), the sidewall of described crystallizer (3) is disposed with outlet (11) and water inlet (10) from top to bottom, described crystallizer (3) is used for cooling down metal strand (9), the traction machine (4) being further arranged below tractive metal strand (9) of described crystallizer (3)；On the bottom surface of described fusing stove (1) and the position of corresponding furnace chamber (5) is provided with sealing gasket (7), and described crystallizer (3) is fixed in fusing stove (1) by sealing gasket (7)；Described furnace chamber (5) and screw rod (2) are made up of aluminium oxide ceramics；
Described method is specifically implemented according to following steps:
Step 1, the metal strand apparatus for continuously production that can provide compression casting is started, by the heating temperatures in furnace chamber (5), start screw rod (2) and rotate, and open the cooling water of crystallizer (3)；
Step 2, raw metal is continuously added in the metal strand apparatus for continuously production that compression casting can be provided；
Step 3, the rotating speed adjusting screw rod (2) and the cooling water inflow of crystallizer (3), start casting, raw metal forms metal bath (8) in furnace chamber (5), and metal bath (8) is cooled into metal strand (9) through crystallizer (3)；
Step 4, start continuous traction machine, metal strand (9) is involved；
The heating temperatures of furnace chamber to molten metal phase line above 50-200 DEG C in described step 1；Furnace chamber (5) is arranged in vertical, horizontal or inclined；
Described raw metal is melt liquid or solid particle；
In described step 3, the direction of rotation of screw rod (2) is backpitch angular direction, and rotating speed is 10-500 rev/min；
The tractive manner of the continuous traction machine in described step 4 for drawing-stop-pull-type or draw-stop-anti-push-pull, hauling speed is 10mm/min-200mm/min.
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| CN105954074B (en) | 2016-04-26 | 2018-08-03 | 北京科技大学 | A kind of high throughput prepares the device of gradient multicomposition composite metal material |
| CN107159861B (en) * | 2017-05-16 | 2019-04-23 | 苏州金仓合金新材料有限公司 | A kind of semi solid copper alloy continuous casting apparatus and method |
| CN108672670A (en) * | 2018-06-05 | 2018-10-19 | 湖南城市学院 | A kind of metal strand apparatus for continuously production that compression casting is provided and method |
| CN110560965B (en) * | 2019-09-30 | 2021-09-28 | 无锡广捷富金属制品有限公司 | Production line is used in tin silk production |
| CN112355260B (en) * | 2020-10-28 | 2024-06-14 | 芜湖楚江合金铜材有限公司 | Device for improving crystallization temperature of copper alloy for musical instrument |
| CN114346188B (en) * | 2022-01-14 | 2023-03-28 | 华北理工大学 | Flow field control and regulation device for ultrahigh-speed continuous casting crystallizer |
| CN115722667B (en) * | 2022-11-30 | 2023-06-16 | 华中科技大学 | Horizontal continuous material-adding screw extrusion equipment for sectional materials and preparation method |
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| JP2597734B2 (en) * | 1990-05-22 | 1997-04-09 | 株式会社 レオテック | Continuous casting method of semi-solid metal |
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| JP3348836B2 (en) * | 1998-12-22 | 2002-11-20 | 中小企業総合事業団 | Continuous casting equipment for semi-solid metal |
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| US3902544A (en) * | 1974-07-10 | 1975-09-02 | Massachusetts Inst Technology | Continuous process for forming an alloy containing non-dendritic primary solids |
| US5501266A (en) * | 1994-06-14 | 1996-03-26 | Cornell Research Foundation, Inc. | Method and apparatus for injection molding of semi-solid metals |
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