CN1153689A - Continuous aluminium-titanium-boron wire casting and extruding process - Google Patents

Continuous aluminium-titanium-boron wire casting and extruding process Download PDF

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Publication number
CN1153689A
CN1153689A CN 95113968 CN95113968A CN1153689A CN 1153689 A CN1153689 A CN 1153689A CN 95113968 CN95113968 CN 95113968 CN 95113968 A CN95113968 A CN 95113968A CN 1153689 A CN1153689 A CN 1153689A
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China
Prior art keywords
casting
alloy
wheel
extruding
aluminium
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CN 95113968
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CN1061913C (en
Inventor
温景林
李体彬
张晓东
付安生
祝景祜
黄宝森
李树新
朱世涛
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TENG'AO SPECIAL ZONE COMPOUND METAL MATERIAL CO Ltd ANSHAN
Northeastern University China
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TENG'AO SPECIAL ZONE COMPOUND METAL MATERIAL CO Ltd ANSHAN
Northeastern University China
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Priority to CN95113968A priority Critical patent/CN1061913C/en
Publication of CN1153689A publication Critical patent/CN1153689A/en
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Publication of CN1061913C publication Critical patent/CN1061913C/en
Anticipated expiration legal-status Critical
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Abstract

The technological process of aluminium-titanium-boron grain refiner production consists of material prepn, smelting, stirring, casting, solidification, extrusion, cooling, alignment and coiling. Molten aluminium-titanium-boron alloy after being stirred for homogeneity is deposited directly into hole channel formed by casting extrusion wheel and channel tile, extruded via the die port into wire under the action of rotating casting extrusion wheel and extrusion block, cooled and coiled. The technological process of the present invention is also suitable for the production of aluminium wire and aluminium alloy wire.

Description

Continuous aluminium-titanium-boron wire casting and extruding process
The invention belongs to and use the process that continuou casting-extruding method is produced the aluminium Ti, B grain graining agent, also can be applicable to the processing of aluminium and aluminium alloy wires simultaneously.
The aluminium Ti, B grain graining agent can produce strong refining effect to aluminium and aluminium alloy cast ingot tissue, can make ingot casting, foundry goods even tissue, reduces segregation, improves plasticity, prevents defectives such as crackle and shrinkage cavity.And, can significantly improve its mechanical performance, presentation quality and yield rate to ingot blank, slab goods that need are further processed.Use aluminium-titanium-boron wire and add continuously in the aluminum melt of casting, can obtain best thinning effect, not only save material, and can realize the on-line automation of Foundry Production.At present, the technology mode of producing aluminium Ti, B grain graining agent wire rod both at home and abroad---extrusion, semicontinuous ingot casting---rolling and continuous casting and rolling method that mainly contain semicontinuous ingot casting.Wherein semicontinuous ingot casting---extrusion and rolling is that the aluminium titanium boron ingot that casting is good is processed into wire rod by extruding or rolling method, because the wire rod length that this method is produced can not be very long, needs to coil after the welding, and the efficient of production is also unstable than low quality.The continuous casting and rolling method is to adopt custom-designed continuous casting and continuous rolling mill, in the molten aluminum Ti-B alloy liquid input unit from induction furnace, is frozen into continuous billet casting, then directly enters tandem mill, produces the finished product wire rod.This kind method is external existing production method, efficient height, steady quality.But the investment of equipment needed thereby is big, and floor space is also bigger.
Through international online retrieval, do not find and the similar document of the present invention.
Intensity of cooling is big when The present invention be directed to the existing a kind of liquid metal crystallization of producing the deficiency of aluminium Ti, B grain graining agent wire craft and designing, organize fine and closely woven, crystal grain is evenly distributed, and equipment investment is few, floor space is little, the continuous aluminium-titanium-boron wire casting and extruding process of stable and reliable product quality.
Continuous aluminium-titanium-boron wire casting and extruding process of the present invention mainly by get the raw materials ready, melting, stirring, continuous casting and extrusion (comprise cast, solidify, extrude), cooling, alignment and operation such as batch and form.Realize by smelting furnace, continuous casting and extrusion machine and coiling machine etc.The continuous casting and extrusion machine is mainly squeezed boots, material extrusion piece and extrusion die etc. and is formed by frame, chute, the crowded opinion of casting, casting.Casting is squeezed on the surface, outer garden of taking turns and is processed with the ring-shaped groove that can hold alloy liquid, squeeze the lower end of taking turns the crowded boots of casting that match with casting and be provided with extrusion die, the material extrusion piece is near the lower edge of extrusion die, being installed in casting squeezes on the boots, the end of this material extrusion piece is stretched into casting and is squeezed in the groove of wheel, and its shape and groove match.Be to reduce casting and squeeze the wearing and tearing of boots, squeeze wheel and casting in casting and squeeze groove envelope watt is housed between the boots.Wheel is squeezed in casting and the crowded boots of casting all pass through water quench.The melting in the smelting furnace of packing into of ready raw material, add alloying element on request, with the Al-Ti-B alloy liquid agitation of fusion evenly back (also can in the insulation bag, stir) casting of being injected into the continuous casting and extrusion machine by chute continuously squeeze the wheel ring-shaped groove and groove seals in the hole slot of watt formation.The size of cast flow squeezes the rotating speed of wheel according to the crowded hole slot chamber of casting cross dimensions, casting and the diameter of the crowded wheel of casting is determined.By casting the frictional force that produces between crowded rotation of taking turns and the alloy aluminum material alloy material is together rotated with the crowded wheel of casting.The alloy liquid of fusion through dynamic crystallization, semi-molten extruding and plastic deformation three phases, solidifies in the hole slot chamber of wheel and watt formation of groove envelope is squeezed in casting gradually.Control casting and squeeze the rotating speed of wheel and the flow that wheel, the crowded boots cooling water of casting are squeezed in the inflow casting, make alloy liquid enter the deformed area while lowering the temperature.Because it is less that the hole slot of wheel and watt formation of groove envelope is squeezed in casting, around it water quench arranged all, so intensity of cooling is bigger.The aluminium alloy that enters the deformed area squeezes in casting and continues under the drive of taking turns to move, and squeezes in casting under the effect of the material extrusion piece extruding force on the boots, makes alloy become the wire rod shape to extrude continuously from the mould mouth.After the water cooling alignment, batch rolling to coiling machine.The optimum temperature that the alloy liquid of fusion is poured into a mould is between 740-870 ℃; The temperature that enters deformed area extruding place is advisable between 400-500 ℃.Said dynamic crystallization, semi-molten extruding and plastic deformation three phases are meant that the alloy liquid of fusion enters the casting crowded wheel groove of rotation and the cavity of groove envelope watt formation, form the crystallization shell along the chamber wall, shell is along with the rotation of wheel produces the liquid metals friction, crystallization shell and liquid metals make shell thickening gradually in the dynamic friction process, realized the process of dynamic crystallization.Friction in the turbulent condition that alloy material is in liquid-solid phase coexistence produces makes alloy the process of constantly being destroyed again and forming, i.e. semi-molten squeezed state occur constantly forming.The rotation that alloy material after solidifying squeezes wheel along with casting transfers external friction to by interior friction, makes metal generation plastic deformation, is mixed with the generation of crystallization more simultaneously.Material after entering extrusion chamber makes alloy material extrude from the mould mouth under the effect of extruding force, obtains desired aluminium-titanium-boron wire.
Advantage of the present invention is that casting, extrusion molding are finished by an equipment as a procedure, and the intensity of cooling during the liquid metal crystallization is bigger, organize fine and closely woven, be other method produce wire rod can not compare.Continuous casting and extrusion is the continuous process that casting and extruding are combined as a whole, and the cavity cross dimensions that casting is squeezed is little, and cooling velocity is fast, and the crystallization degree of supercooling is big.Reduced the used rolling or extrusion equipment of other technology, saved the energy, reduced floor space, and can make the steady quality of product reliable.
Accompanying drawing 1 is a technological process block-diagram of the present invention.
Accompanying drawing 2 is a process flow diagram of the present invention, and (1) is smelting furnace among the figure; (2) be the insulation bag; (3) be chute; (4) squeeze wheel for casting; (5) squeeze boots for casting; (6) be groove envelope watt; (7) be extrusion die; (8) be bosh; (9) be finished product; (10) be coiling machine; (11) be the material extrusion piece; (12) be rotating shaft; (13) be hydraulic cylinder.
Existing accompanying drawings one embodiment of the present of invention.
Process of the present invention mainly realizes by smelting furnace, continuous casting and extrusion machine and coiling machine etc.The material extrusion piece (10) of casting and extruding machine and extrusion die (7) are located at the below of the crowded boots (5) of casting and squeeze near casting on the position of wheel (4), cast on the surface, outer garden of squeezing wheel (4) to be processed with the ring-shaped groove that can hold alloy liquid.Under the effect of hydraulic cylinder (13), boots (5) (12) rotation is around the shaft squeezed in casting, and leans against on the crowded wheel of casting (4).Casting is squeezed between wheel (4) and the crowded boots (5) of casting groove envelope watt (6).Al-Ti-B alloy liquid through smelting furnace (1) fusing, after stirring, between 740-870 ℃, being injected into casting continuously by insulation bag (2) and chute (3) squeezes in the hole slot of the ring-shaped groove of wheel (4) and watt (6) formation of groove envelope, when the crowded wheel of casting (4) rotates in the direction of the clock, alloy material is brought into the deformed area that extrusion die (7) is located.Stretch into casting squeeze in wheel (4) ring-shaped groove, be installed in the material extrusion piece (11) that casting squeezes on the boots (5) aluminium alloy extruded from the mouth of extrusion die (7) continuously.The rotating speed of wheel and the flow that cooling water in wheel, the crowded boots of casting is squeezed in the inflow casting are squeezed in the control casting, and the alloy temperature of distortion crush zone is remained between 400-500 ℃.If the temperature that casting is squeezed is too high, the wire rod of extruding is prone to crackle; The temperature that casting is squeezed is low excessively, and the metal deformation pulling force increases, and makes the distortion difficulty.

Claims (3)

1. continuous aluminium-titanium-boron wire casting and extruding process, mainly by melting, continuous casting and extrusion with operation such as batch and form, it is characterized in that: with the melting in the smelting furnace of packing into of ready raw material, add alloying element on request, through the Al-Ti-B alloy liquid of fusion, the back that stirs is squeezed in the hole slot of wheel ring-shaped groove and watt formation of groove envelope by the casting that chute is continuously pouring to the continuous casting and extrusion machine; By casting the frictional force that produces between crowded rotation of taking turns and the alloy aluminum material, make alloy material squeeze wheel and together rotate with casting; The alloy liquid of fusion solidifies gradually through dynamic crystallization, semi-molten extruding and plastic deformation three phases in the hole slot of wheel and watt formation of groove envelope is squeezed in casting; Control casting and squeeze the rotating speed of wheel and the flow that cooling water in wheel, the crowded boots of casting is squeezed in the inflow casting, make alloy liquid enter the deformed area while lowering the temperature; The aluminium alloy that enters the deformed area squeezes in casting and continues under the drive of taking turns to move, and squeezes in casting under the effect of the material extrusion piece extruding force on the boots, makes alloy become the wire rod shape to extrude continuously from the mould mouth, batches rolling to coiling machine after the water cooling alignment.
2. continuous aluminium-titanium-boron wire casting and extruding process according to claim 1 is characterized in that: the cast temperature of the Al-Ti-B alloy liquid of said fusion is 740-870 ℃; Temperature in deformed area extruding place is 400-500 ℃.
3. continuous aluminium-titanium-boron wire casting and extruding process according to claim 1, it is characterized in that: said dynamic crystallization, semi-molten extruding and plastic deformation three phases are meant that the alloy liquid of fusion enters the casting crowded wheel groove of rotation and the cavity of groove envelope watt formation, form the crystallization shell along the chamber wall, shell is along with the rotation of wheel produces the liquid metals friction, crystallization shell and liquid metals make book shell thickening gradually in the dynamic friction process, realized the process of dynamic crystallization; Friction in the turbulent condition that alloy material is in liquid-solid phase coexistence produces makes alloy the process of constantly being destroyed again and forming, i.e. semi-molten squeezed state occur constantly forming; The rotation that alloy material after solidifying squeezes wheel along with casting transfers external friction to by interior friction, makes metal generation plastic deformation, is mixed with the generation of crystallization more simultaneously; Material after entering extrusion chamber makes alloy material extrude from the mould mouth under the effect of extruding force, obtains desired aluminium-titanium-boron wire.
CN95113968A 1995-12-07 1995-12-07 Continuous aluminium-titanium-boron wire casting and extruding process Expired - Fee Related CN1061913C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN95113968A CN1061913C (en) 1995-12-07 1995-12-07 Continuous aluminium-titanium-boron wire casting and extruding process

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Application Number Priority Date Filing Date Title
CN95113968A CN1061913C (en) 1995-12-07 1995-12-07 Continuous aluminium-titanium-boron wire casting and extruding process

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CN1061913C CN1061913C (en) 2001-02-14

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101967575A (en) * 2010-09-16 2011-02-09 哈尔滨工程大学 Preparation method of Al5Ti1B intermediate alloy
CN101786113B (en) * 2010-01-25 2012-08-01 东北大学 Preparation method of Al-based alloy core wire
CN105679459A (en) * 2016-01-28 2016-06-15 广东省材料与加工研究所 Preparation method of aluminum-clad carbon fiber wire
CN105671374A (en) * 2016-03-28 2016-06-15 沈阳大学 Preparation method for high-conductivity heat-resistant aluminium alloy conductor
CN105671343A (en) * 2016-03-25 2016-06-15 沈阳大学 Preparation method of aluminum boron intermediate alloy wire for electrician aluminum melt purification
CN107190166A (en) * 2017-04-27 2017-09-22 酒泉钢铁(集团)有限责任公司 The method that Al Ti B Sr alloy refinements agent and rheo-extrusion shaping prepare alloy
CN110195168A (en) * 2019-07-12 2019-09-03 东北大学 A kind of preparation process of Al-Ti-B grain refiners strip

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CN1311940C (en) * 2005-05-20 2007-04-25 东北轻合金有限责任公司 Method for founding aluminium alloy slab ingot
CN102451903A (en) * 2010-10-18 2012-05-16 东又悦(苏州)电子科技新材料有限公司 Zinc material manufacturing device and method

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CN1044247A (en) * 1989-01-20 1990-08-01 戈麦尔综合技术学院 Make the equipment of the method and this method of enforcement of metal wire
CN1038486C (en) * 1991-11-12 1998-05-27 中国有色金属工业总公司昆明贵金属研究所 Method and apparatus for continuous casting metal wires
CN1026957C (en) * 1992-12-05 1994-12-14 冶金工业部钢铁研究总院 Horizontal continuous casting method for metal wire stock

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101786113B (en) * 2010-01-25 2012-08-01 东北大学 Preparation method of Al-based alloy core wire
CN101967575A (en) * 2010-09-16 2011-02-09 哈尔滨工程大学 Preparation method of Al5Ti1B intermediate alloy
CN101967575B (en) * 2010-09-16 2012-03-14 哈尔滨工程大学 Preparation method of Al5Ti1B intermediate alloy
CN105679459A (en) * 2016-01-28 2016-06-15 广东省材料与加工研究所 Preparation method of aluminum-clad carbon fiber wire
CN105671343A (en) * 2016-03-25 2016-06-15 沈阳大学 Preparation method of aluminum boron intermediate alloy wire for electrician aluminum melt purification
CN105671343B (en) * 2016-03-25 2018-01-16 沈阳大学 A kind of preparation method of the outer in-line purification aluminium boron intermediate alloy wire rod of electrician's aluminum melt stove
CN105671374A (en) * 2016-03-28 2016-06-15 沈阳大学 Preparation method for high-conductivity heat-resistant aluminium alloy conductor
CN105671374B (en) * 2016-03-28 2017-12-29 沈阳大学 A kind of preparation method of high-conductive heat-resistant aluminium alloy conductor
CN107190166A (en) * 2017-04-27 2017-09-22 酒泉钢铁(集团)有限责任公司 The method that Al Ti B Sr alloy refinements agent and rheo-extrusion shaping prepare alloy
CN110195168A (en) * 2019-07-12 2019-09-03 东北大学 A kind of preparation process of Al-Ti-B grain refiners strip
CN110195168B (en) * 2019-07-12 2021-01-01 东北大学 Preparation process of aluminum-titanium-boron refiner plate

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