CN101130203A - Method for preparing semi-solid metal slurry and rheologic molding - Google Patents
Method for preparing semi-solid metal slurry and rheologic molding Download PDFInfo
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- CN101130203A CN101130203A CNA2007101761349A CN200710176134A CN101130203A CN 101130203 A CN101130203 A CN 101130203A CN A2007101761349 A CNA2007101761349 A CN A2007101761349A CN 200710176134 A CN200710176134 A CN 200710176134A CN 101130203 A CN101130203 A CN 101130203A
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Abstract
The invention discloses a preparing technique of semi-solid metal slurry and rheologic moulding equipment in the preparing technical domain of semi-solid metal slurry, which comprises the following steps: pouring the overheat metal liquid into straight-in composite tube path with an inclined tube and a vertical tube; moving the semi-solid metal slurry and preparing copper into the temperature controller after flowing the overheat metal liquid into the copper along the inner wall of the straight-in composite tube path; doing subsequent cooling or temperature field control for the semi-solid metal slurry; pouring the semi-solid metal slurry into pressing chamber with squeeze moulding machine or squeeze caster or forger to mould; opening or fetching the cast piece or squeeze cast or forge from mould. The invention simplifies the preparing technique, reduces energy consumption and shortens the technical flow path, which reduces the manufacturing cost of the semi-solid metal rheopectic casting die or rheopectic squeeze casting die or rheopectic forge.
Description
Technical field
The invention belongs to the preparation and the field shaping technique of semi-solid metal slurry, a kind of preparation and rheoforming method of semi-solid metal slurry is provided especially, be applicable to the preparation and the moulding of semi-solid metal slurry.
Background technology
Since the Semi-Solid Metals Forming technology had been invented by the seventies initial stage Massachusetts Institute Technology (MIT), the preparation of semi-solid metal slurry and forming technique caused the extensive concern and the research of various countries.According to document " Behavior of metal alloys in the semisolid state " (M C Flemings, MetallTrans, 1991,22A:957-981), " Method and apparatus for shaping semisolid metals " (A Mitsuru, S Hiroto, H Yasunori, et al, EP Patent, 0745694A1,1996), " A noveltechnique to produce metal slurries for semi-solid metal processing " (J Wannasin, R A Martinez, M C Flemings, [in] Proc of the 9th Int.Conf.of Semi-SolidProcessing of Alloys and Composites, Busan Korea, 2006, p.366-369), " Rheocasting processes for semi-solid casting of aluminum alloys " (S P Midson, Die Casting Engineer, 2006,50 (1): 48-51), " preparation method of semi-solid-state metal and alloy pulp or blank " (Mao Weimin, Chinese patent, 200410009296.X, 2004) and " metal material semi-solid processing theory and technology " (write: Kang Yonglin, Mao Weimin, Hu Zhuanqi, Science Press, 2004) report, the method that obtains semi-solid metal slurry is a lot, as mechanical mixing method, electromagnetic stirring method, the melt activation method that strain causes (strain induced melt activation), grain refinement and remelting process, the turbulence effect method, the single-screw paddling process, the double helix paddling process, low overheat hang plate casting, low overheat cast and light current magnetic paddling process, low overheat cast and weak mechanical mixing method, the melt mixed method, control cast height method, bubble agitation method etc.Equally, above-mentioned document has also proposed the rheoforming method of many semi-solid metal slurries, as traditional mechanical agitation type rheoforging, injection chamber prepares slurry formula rheoforging, single-screw mechanical agitation type rheoforging, double helix mechanical agitation type rheoforging, low overheat hang plate cast-type rheoforging, low overheat cast and weak mechanical agitation type rheoforging, low overheat cast and light current magnetic stirring-type rheoforging, SLC formula (Sub-Liquidus Casting) rheoforging, CRP formula (Continuous RheoconversionProcess) rheoforging, SEED formula (Swirled Enthalpy Equilibation Device) rheoforging, CSIR formula (The Council for Science and industrial Research) rheoforging.But for preparation and the moulding cost that reduces semi-solid metal slurry, the scholar of countries in the world, expert and industrial quarters attempt to propose the technology of preparing of new semi-solid metal slurry or blank still in continuous effort.
Prepare in the semi-solid metal slurry method in electromagnetic agitation, No. 4229210, the U.S. and No. 4434837 patents require and must carry out strong electromagnetic agitation to metal bath, and promptly the power of electromagnetic agitation is very big, and the shear rate that stirring is produced is generally at 500～1500S
-1Under such shear rate, the rotary speed that is stirred molten metal is very high, generally all surpasses 500 rev/mins, at this moment could obtain tiny and semi-solid metal slurry or blank ring initial crystal, thereby the preparation cost of blank is higher.If shear rate is less than 500S
-1, the form variation of primary crystal mostly is the rosiness primary crystal, and the dendrite layer of semi-solid metal slurry or blank surface is thicker, and this semi-solid-state metal blank is unsuitable for semi-solid die casting.
No. 3902544,3948650,3954455, United States Patent (USP) and document " Rheocasting " (M CFlemings, R G Riek and K P Young, Materials Science and engineering, 1976, all mention 25:103-117), the mechanical agitation method of preparation semi-solid metal slurry all adopts strong mechanical agitation.The mechanical agitation method utilizes rotating vane or the stirring rod nascent solid phase dendrite in will solidifying to smash, and obtains semi-solid metal slurry.In stirring, the relative rotation speed of these churned mechanically blades and stirring rod is all very high, and is general all more than 500 rev/mins, even above 10000 rev/mins.Under so high stir speed (S.S.), the life-span of teeter chamber and stirring rod is not long, pollutes ring initial crystal semi-solid metal slurry or blank easily, reduces the internal soundness of semi-solid metal slurry or blank.
Document " Semi-solid processing of engineering alloys by a twin-screwrheomolding process. " (S Ji, Z Fan and M J Bevis, Mater Sci﹠amp; Eng, 2001,299A:210-217) propose: the equipment that casting is penetrated in the rheology of double helix mechanical agitation mainly comprises liquid magnesium alloy feeding machanism, double helix mechanical agitation mechanism, injection mechanism and central controlling organization.Feeding machanism can guarantee to provide temperature the suitable and suitable liquid magnesium alloy of quantity to double helix mechanical agitation mechanism; In a single day liquid magnesium alloy enters stirring system, by double helix agitator consumingly sheared on one side, be quickly cooled to the fraction solid of expection on one side; When the semi-solid magnesium alloy slurry arrived transfer valve, nascent solid phase had changed spherical particle into, and is evenly distributed in low-melting liquid phase; When transfer valve was opened, the semi-solid magnesium alloy slurry entered injection chamber, is pressed into mold cavity, and solidifies fully in mould, finally formed machine components.But the semi-solid rheological moulding that casting machine only is suitable for magnesium alloy is penetrated in the rheology of this double helix mechanical agitation.
Document " Liquidus Casting Aluminum Alloy 2618 microscopic structures " (Liu Dan, Cui Jianzhong, Xia Kenong. the journal .1999 of Northeastern University, 20 (2): 173-176) propose: under non-stirring condition, only utilize the control pouring temperature, also can prepare semi-solid metal slurry, this method is called as the liquidus curve casting, but the pouring temperature that this method requires molten metal is very near the liquidus temperature of this molten metal, promptly high 1～5 ℃ than this liquidus temperature, could obtain semi-solid metal slurry, this makes big capacity molten metal temperature controlling become very difficult, and the flowability of molten metal is variation also.If improve the pouring temperature of molten metal, the spherical-like morphology of primary crystal can worsen, spherical rosiness or the dendritic crystalline of changing into when pouring into a mould by liquidus curve, the thixotropy of this semi-solid metal slurry is very poor, distortion during semi-solid-state shaping is inhomogeneous, be prone to the liquid-solid phase segregation, be unfavorable for the semisolid moulding of metal.
Chinese patent 00109540.4 has proposed a kind of method for preparing semi-solid metal slurry or blank; being about to low excessive molten metal directly pours in mold or the continuous cast mold; simultaneously this over-heat metal liquid is carried out weak stirring; just can prepare semi-solid metal slurry or blank; and this semi-solid metal slurry or blank are pure; can not be subjected to the pollution of preparation facilities; therefore this preparation method's equipment investment is lower; the preparation cost of semi-solid metal slurry or blank is lower; semi-solid metal slurry is convenient to various rheoforgings, and the semi-solid-state metal blank is convenient to various thixotroping moulding.But this method also needs special electromagnetic stirring equipment or mechanical stirring equipment when the preparation semi-solid metal slurry, the formation complexity of integral device, and preparation technology is cumbersome.
European patent EP 0745691A1 has proposed New Rheocasting technology, is called for short NRC.In the NRC technology, at first reduce the degree of superheat of casting of molten metal, on pouring metal melt to a tilt flat plate (or inclination pipe or inclination semicircle pipe), metal bath flows into collects crucible, pass through suitable cooled and solidified again, at this moment the nascent solid phase in the semi-solid-state metal melt just is spherical, be evenly distributed in low-melting remaining liquid phase, at last the metal paste of collecting in the crucible is carried out the temperature adjustment, to obtain even temperature field or fraction solid as far as possible, finally obtain semi-solid metal slurry.But the angle of inclination of this hang plate is less, generally between 30～60 degree (angle of tilt flat plate and horizontal direction), sticks metal bath easily, needs constantly cleaning, also wastes metal.
Document " Idra Prince Rheocasting and Squeeze Casting Technology " (J Yueko, Die Casting Engineer, 2002, (4): 20-23) point out: people such as the Martinez of Massachusetts Institute Technology (MIT) and Flemings have proposed a kind of new rheoforging technology.The core concept of this technology is: with the pouring metal melt (this crucible internal diameter size is fit to the injection chamber size of die casting machine) in spare-crucible of low overheat, utilize the copper rod of plated film that the molten metal in the crucible is carried out weak in short-term mechanical agitation, metal bath is cooled to below the liquidus temperature, remove the stirring copper rod then, the temperature or the fraction solid that allow semi-solid-state metal melt in the crucible be cooled to be scheduled to have just obtained semi-solid metal slurry.This semi-solid metal slurry is carried out rheo-diecasting or forging, with regard to plastic various parts.But this method also needs special mechanical stirring equipment when the preparation semi-solid metal slurry, the formation complexity of integral device, and preparation technology is cumbersome.
What require emphasis especially a bit is, more than various preparation semi-solid metal slurries and rheoforging technology oneself characteristics are all arranged, also all there is deficiency separately, still needs to propose the preparation and the forming technique of new semi-solid metal slurry, so that simplify technology, reduce production costs.
Summary of the invention
The object of the present invention is to provide a kind of preparation and rheoforming method of semi-solid metal slurry.Realized that preparation technology is simple, small investment, production cost be low, is fit to very much the preparation and the rheoforging production of semi-solid metal slurry and blank.
A kind of preparation of semi-solid metal slurry and rheoforming method, it is characterized in that over-heat metal liquid is poured in the tiltedly straight multiple tube passage of being made up of tipping tube and vertical tube, the temperature of over-heat metal liquid is controlled at above 0～200 ℃ of its liquidus temperature in advance, over-heat metal liquid flows downward along the inwall of this tiltedly straight multiple tube passage, inflow is 0.9～1.1 graphite for relative permeability again, or pottery, or copper alloy, or stainless steel, or in the cylindrical or polygon prismatic spare-crucible of stainless iron, just can obtain semi-solid metal slurry after this metal bath partial coagulation; The follow-up cooling velocity of controlling this metal paste simultaneously is 1～50 ℃/min, and making this semi-solid metal slurry reach predetermined 0.2～0.7 fraction solid maybe should predetermined pairing metal paste temperature of fraction solid; Finally make the temperature field of this semi-solid metal slurry even, the temperature difference of the edge of this semi-solid metal slurry and heart portion is ± 1～5 ℃, then the semi-solid metal slurry of this fraction solid or the corresponding temperature of this fraction solid is directly delivered to die casting machine or extrusion casting machine or forging machine moulding.Or make the metal bath that flows through this tiltedly straight multiple tube passage no longer flow into spare-crucible, but flow directly in the injection chamber of die casting machine or extrusion casting machine or in the forging die of forging machine, rheo-diecasting moulding or rheology extrusion casint moulding or rheology forging and molding again.After this metal bath flows into this spare-crucible, can further solidify fully, can obtain the blank of this semi-solid-state metal; Or this molten metal flows into continuous cast mold after flowing through tiltedly straight multiple tube passage again, casts out the blank of this semi-solid-state metal continuously, and this blank can be used as the original blank of semi-solid die casting.
Should the oblique directly height of the inclination pipeline section of multiple tube passage be 0～300mm, the angle of inclination pipeline section inwall and ground level vertical line be 0～60 degree; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 50～1000mm; The internal diameter of tiltedly straight multiple tube passage is 5～50mm; The material of tiltedly straight multiple tube passage is that relative permeability is 0.9～1.1 graphite or pottery or copper alloy or stainless steel or stainless iron; Tiltedly the inwall of straight multiple tube passage can brushing ceramic coating lining, and the thickness of this ceramic coating lining is 0.2～2mm; When cast over-heat metal liquid, the temperature of tiltedly straight multiple tube passage is lower than the solidus temperature of this molten metal; Tiltedly straight multiple tube passage can be preheated or force cooling, its preheating can be adopted resistance wire mode of heating or electromagnetic induction heating mode or gas mode of heating, and it forces cooling can adopt recirculated water cooling or air-flow cooling or brackish water cooling or machine oil cooling.
After casting of molten metal, the semi-solid metal slurry in this spare-crucible and this spare-crucible is moved in the temperature controller together.Be provided with heating element heater and cooling element in this temperature controller, can control the follow-up cooling velocity or the temperature field of semi-solid metal slurry, making this semi-solid metal slurry reach predetermined 0.2～0.7 fraction solid maybe should predetermined pairing metal paste temperature of fraction solid.The follow-up cooling velocity of this semi-solid metal slurry is 1～50 ℃/min; Finally make the temperature field of this semi-solid metal slurry even, the temperature difference of the edge of this semi-solid metal slurry and heart portion is ± 1～5 ℃; Follow-up cooling or temperature field that heating element heater in this temperature controller is controlled semi-solid metal slurry by the resistance heat or the electromagnetic induction heat of its generation; Cooling element in this temperature controller passes to air at room temperature or room temperature argon gas or SF
6With air or SF
6With CO
2The mixture of gas, or pass to running water or machine oil cooling liquid, control the follow-up cooling or the temperature field of semi-solid metal slurry with this.
In spare-crucible and tiltedly straight multiple tube passage, can feed the oxidation that molten metal was avoided or reduced to protective gas; This protective gas can be argon gas or nitrogen, helium or SF
6With air or SF
6With CO
2The mixture of gas.
Metal bath can further solidify after flowing into spare-crucible fully, can obtain the blank of semi-solid-state metal; Or this molten metal flows directly into continuous cast mold after flowing through tiltedly straight multiple tube vias inner walls again, casts out the blank of semi-solid-state metal continuously.This blank can be used as the original blank of Semi-Solid Thixoforming moulding.
Above-mentioned semi-solid-state metal is meant that composition is lower than aluminium alloy or the hypoeutectic aluminium alloy or the hypereutectic aluminium alloy of maximum solid solution degree; Or magnesium alloy or hypoeutectic magnesium alloy; Perhaps semi-solid-state metal is the kirsite that hypereutectic kirsite or composition are higher than maximum solid solution degree.
The invention has the advantages that: the degree of superheat of control molten metal is 0～200 ℃, this over-heat metal liquid is poured into (temperature of tiltedly straight multiple tube passage is lower than the solidus temperature of this over-heat metal liquid) in the tiltedly straight multiple tube passage, over-heat metal liquid flows downward along the inwall of tiltedly straight multiple tube passage, inflow is 0.9～1.1 graphite for relative permeability again, or pottery, or copper alloy, or stainless steel, or in the cylindrical or polygon prismatic spare-crucible of stainless iron, this method has not only been eliminated single hang plate (or tipping tube, or inclination semicircle pipe) Jiao Zhu difficulty, be difficult for sticking metal bath, and vertical pipeline section can improve the flowability of metal significantly, can cause stronger stirring to the melt in the spare-crucible, therefore needn't adopt complicated electromagnetic agitation or mechanical agitation equipment, this has significantly reduced the preparation energy consumption, simplified the preparation process of semi-solid metal slurry, can obtain good semi-solid metal slurry equally, obviously reduce the preparation cost of semi-solid metal slurry.These semi-solid metal slurries are through follow-up cooling or control temperature field, making this semi-solid metal slurry reach predetermined 0.2～0.7 fraction solid maybe should predetermined corresponding temperature of fraction solid, the semi-solid metal slurry that will reach this predetermined fraction solid or temperature is sent in the injection chamber of die casting machine or extrusion casting machine or forging machine, carries out rheo-diecasting or rheology extrusion casint or rheology forging molding.Perhaps, make the metal bath that flows through tiltedly straight multiple tube passage no longer flow into spare-crucible, but flow directly in the injection chamber of die casting machine or extrusion casting machine or forging machine, directly carry out rheo-diecasting moulding or rheology extrusion casint moulding or rheology forging molding.This rheo-diecasting moulding or this rheology extrusion casint moulding or this rheology forging molding have shortened the thixotroping moulding process flow process of semi-solid-state metal greatly, have also reduced equipment investment significantly, have finally reduced the production cost of semi-solid-state metal profiled member.Preparation semi-solid metal slurry technology of the present invention is the preparation of a crucible one crucible, the conveying of semi-solid metal slurry is easy to realize, it is higher that the liquid phase fraction of slurry can also be controlled, the very complicated parts blank of being convenient to be shaped, and that the liquid phase fraction of conventional semi-solid-state metal thixotroping shaping blank can not be controlled is too high, moulding is difficulty relatively during complex parts very, otherwise the carrying of blank is difficult to realize technological operation.Technology of the present invention makes running gate system, the waste product behind the semi-solid metal slurry rheoforging will be directly in this workshop reuse, reduce the production cost of semi-solid state metal rheological moulding, and running gate system, waste product after the conventional semi-solid-state metal blank thixotroping moulding must turn back to the factory that blank prepares workshop or blank supplier, have increased the production cost of semi-solid-state metal thixotroping moulding.
Description of drawings
Fig. 1 is the quenching structure of the semisolid ZL101A aluminium alloy size for preparing of the present invention, and light areas is spherical primary-Al, and darker regions is the eutectic liquid that solidifies.
Fig. 2 is the quenching structure of the cooled semisolid ZL101A aluminium alloy size of control of the present invention, and light areas is spherical primary-Al, and darker regions is the eutectic liquid that solidifies.
Fig. 3 is the quenching structure of the semisolid ZL101A aluminium alloy size for preparing of the present invention, and light areas is spherical primary-Al, and darker regions is the eutectic liquid that solidifies.
The specific embodiment
Embodiment 1, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 15 ℃ (being that pouring temperature is 630 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 10mm, and the angle of inclination pipeline section inwall and ground level vertical line is 5 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 100mm, and the internal diameter of tiltedly straight multiple tube passage is 15mm, and the material of this tiltedly straight multiple tube passage is a graphite.Overheated 15 ℃ ZL101A aluminum alloy melt is directly poured in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of the stainless steel of Austenitic, when the partial coagulation of ZL101A aluminum alloy melt, can obtain semisolid ZL101A aluminium alloy size; This spare-crucible is moved in the temperature controller together with wherein semisolid ZL101A aluminium alloy size, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid ZL101A aluminium alloy size wherein, cooling velocity is 5 ℃/min, the fraction solid of this semisolid ZL101A aluminium alloy is controlled at predetermined scope, promptly 0.2～0.7 maybe this semisolid ZL101A aluminium alloy size temperature is controlled at 580～600 ℃; In the process in this slurry cooling or control temperature field, the edge of this semisolid ZL101A aluminium alloy size and the temperature difference of heart portion are less than ± 3 ℃; So far, the semisolid ZL101A aluminium alloy size of suitable semi-solid rheological die casting finishes with regard to preparation.Pour the semisolid ZL101A aluminium alloy size of 580～600 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures into the pressure chamber of cold house's horizontal plunger die casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this die casting machine is 250 ℃, and the preheat temperature of this die-casting die is 200 ℃; When holding when pressing 5～8 seconds (the semisolid ZL101A aluminium alloy size in this moment this die-casting die solidifies fully), but open form is taken out this die casting, has just finished the rheo-diecasting process of a ZL101A aluminium alloy.
Embodiment 2, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 15 ℃ (being that pouring temperature is 630 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 50mm, and the angle of inclination pipeline section inwall and ground level vertical line is 10 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 50mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is a graphite.Overheated 15 ℃ ZL101A aluminum alloy melt is directly poured in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of the stainless steel of Austenitic, when the partial coagulation of ZL101A aluminum alloy melt, can obtain semisolid ZL101A aluminium alloy size, it is organized as shown in Figure 1; This spare-crucible is moved in the temperature controller together with wherein semisolid ZL101A aluminium alloy size, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid ZL101A aluminium alloy size wherein, cooling velocity is 5 ℃/min, the fraction solid of this semisolid ZL101A aluminium alloy is controlled at predetermined scope, promptly 0.2～0.7 maybe this semisolid ZL101A aluminium alloy size temperature is controlled at 580～600 ℃, it is organized as shown in Figure 2; In the process in this slurry cooling or control temperature field, the edge of this semisolid ZL101A aluminium alloy size and the temperature difference of heart portion are less than ± 3 ℃; So far, the semisolid ZL101A aluminium alloy size of suitable semi-solid rheological die casting finishes with regard to preparation.Pour the semisolid ZL101A aluminium alloy size of 580～600 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures into the pressure chamber of a cold-chamber die casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this die casting machine is 250 ℃, and the preheat temperature of this die-casting die is 200 ℃; When holding when pressing 5～8 seconds (the semisolid ZL101A aluminium alloy size in this moment this die-casting die solidifies fully), but open form is taken out this die casting, has just finished the rheo-diecasting process of a ZL101A aluminium alloy.
Embodiment 3, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 85 ℃ (being that pouring temperature is 700 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 200mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 200mm, and the internal diameter of tiltedly straight multiple tube passage is 30mm, and the material of this tiltedly straight multiple tube passage is a graphite; In this ZL101A aluminum alloy melt process of cast, utilizing the outer cooling jacket of inlaying to cool off should tiltedly straight multiple tube passage.Overheated 85 ℃ ZL101A aluminum alloy melt is directly poured in the tiltedly straight multiple tube passage, and in this cylindrical graphite spare-crucible that tiltedly directly the inwall of multiple tube passage flows into, when the partial coagulation of ZL101A aluminum alloy melt, can obtain semisolid ZL101A aluminium alloy size; This spare-crucible is moved in the temperature controller together with wherein semisolid ZL101A aluminium alloy size, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid ZL101A aluminium alloy size wherein, cooling velocity is 5 ℃/min, the fraction solid of this semisolid ZL101A aluminium alloy is controlled at predetermined scope, promptly 0.2～0.7 maybe this semisolid ZL101A aluminium alloy size temperature is controlled at 580～600 ℃, its tissue and Fig. 2 are similar; In the process in this slurry cooling or control temperature field, the edge of this semisolid ZL101A aluminium alloy size and the temperature difference of heart portion are less than ± 3 ℃; So far, the semisolid ZL101A aluminium alloy size of suitable semi-solid rheological die casting finishes with regard to preparation.Pour the semisolid ZL101A aluminium alloy size of 580～600 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures into the pressure chamber of cold house's horizontal plunger die casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this die casting machine is 250 ℃, and the preheat temperature of this die-casting die is 200 ℃; When holding when pressing 5～8 seconds (the semisolid ZL101A aluminium alloy size in this moment this die-casting die solidifies fully), but open form is taken out this die casting, has just finished the rheo-diecasting process of a ZL101A aluminium alloy.
Embodiment 4, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 200 ℃ (being that pouring temperature is 815 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 300mm, and the angle of inclination pipeline section inwall and ground level vertical line is 60 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 1000mm, and the internal diameter of tiltedly straight multiple tube passage is 50mm, and the material of this tiltedly straight multiple tube passage is a graphite; In this ZL101A aluminum alloy melt process of cast, utilize the cooling jacket cooling of outer edge to be somebody's turn to do tiltedly straight multiple tube passage, and in this tiltedly straight multiple tube passage, be blown into the protection argon gas, the flow of argon gas is 3 liters of per minutes.Overheated 200 ℃ ZL101A aluminum alloy melt is directly poured in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of the stainless steel of Austenitic, when the partial coagulation of ZL101A aluminum alloy melt, can obtain semisolid ZL101A aluminium alloy size; This spare-crucible is moved in the temperature controller together with wherein semisolid ZL101A aluminium alloy size, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid ZL101A aluminium alloy size wherein, cooling velocity is 5 ℃/min, the fraction solid of this semisolid ZL101A aluminium alloy is controlled at predetermined scope, promptly 0.2～0.7 maybe this semisolid ZL101A aluminium alloy size temperature is controlled at 580～600 ℃, its tissue and Fig. 2 are similar; In the process in this slurry cooling or control temperature field, the edge of this semisolid ZL101A aluminium alloy size and the temperature difference of heart portion are less than ± 3 ℃; So far, the semisolid ZL101A aluminium alloy size of suitable semi-solid rheological die casting finishes with regard to preparation.Pour the semisolid ZL101A aluminium alloy size of 580～600 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures into the pressure chamber of cold house's horizontal plunger die casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this die casting machine is 250 ℃, and the preheat temperature of this die-casting die is 200 ℃; When holding when pressing 5～8 seconds (the semisolid ZL101A aluminium alloy size in this moment this die-casting die solidifies fully), but open form is taken out this die casting, has just finished the rheo-diecasting process of a ZL101A aluminium alloy.
Embodiment 5, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 45 ℃ (being that pouring temperature is 660 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 250mm, and the internal diameter of tiltedly straight multiple tube passage is 25mm, and the material of this tiltedly straight multiple tube passage is a copper alloy, the thick zircon flour coating of channel inner surface brushing one deck 0.5mm.This overheated 45 ℃ ZL101A aluminum alloy melt is directly poured in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of the stainless steel of Austenitic, when the partial coagulation of ZL101A aluminum alloy melt, can obtain semisolid ZL 101A aluminium alloy size; This spare-crucible is moved in the temperature controller together with wherein semisolid ZL101A aluminium alloy size, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid ZL101A aluminium alloy size wherein, cooling velocity is 5 ℃/min, the fraction solid of this semisolid ZL101A aluminium alloy is controlled at predetermined scope, promptly 0.2～0.7 maybe this semisolid ZL101A aluminium alloy size temperature is controlled at 5g0～600 ℃, its tissue and Fig. 2 are similar; In the process in this slurry cooling or control temperature field, the edge of this semisolid ZL101A aluminium alloy size and the temperature difference of heart portion are less than ± 3 ℃; So far, the semisolid ZL101A aluminium alloy size of suitable semi-solid rheological die casting finishes with regard to preparation.Pour the semisolid ZL101A aluminium alloy size of 580～600 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures into the pressure chamber of cold house's vertical die-casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this die casting machine is 250 ℃, and the preheat temperature of this die-casting die is 200 ℃; When holding when pressing 5～8 seconds (the semisolid ZL101A aluminium alloy size in this moment this die-casting die solidifies fully), but open form is taken out this die casting, has just finished the rheo-diecasting process of a ZL101A aluminium alloy.
Embodiment 6, to utilize resistance melting furnace to produce the degree of superheat be the ZL117 aluminum alloy melt of 45 ℃ (being that pouring temperature is 695 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 300mm, and the internal diameter of tiltedly straight multiple tube passage is 25mm, and the material of this tiltedly straight multiple tube passage is a graphite.Before this ZL117 aluminum alloy melt of cast, utilize the resistance wire preheating that is wrapped in tiltedly straight multiple tube channel outer wall to be somebody's turn to do tiltedly straight multiple tube passage, make its temperature remain on 200 ℃.This overheated 45 ℃ ZL117 aluminum alloy melt is directly poured in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of the stainless steel of Austenitic, when the partial coagulation of ZL117 aluminum alloy melt, can obtain semisolid ZL117 aluminium alloy size; This spare-crucible is moved in the temperature controller together with wherein semisolid ZL117 aluminium alloy size, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid ZL117 aluminium alloy size wherein, cooling velocity is 5 ℃/min, the fraction solid of this semisolid ZL117 aluminium alloy is controlled at predetermined scope, promptly 0.2～0.6 maybe this semisolid ZL117 aluminium alloy size temperature is controlled at 580～590 ℃; In the process in this slurry cooling or control temperature field, the edge of this semisolid ZL117 aluminium alloy size and the temperature difference of heart portion are less than ± 3 ℃; So far, the semisolid ZL117 aluminium alloy size of suitable semi-solid rheological die casting finishes with regard to preparation.Pour the semisolid ZL117 aluminium alloy size of 580～590 ℃ of this predetermined fraction solid 0.2～0.6 or predetermined temperatures into the pressure chamber of cold house's horizontal plunger die casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this die casting machine is 250 ℃, and the preheat temperature of this die-casting die is 200 ℃; When holding when pressing 5～8 seconds (the semisolid ZL117 aluminium alloy size in this moment this die-casting die solidifies fully), but open form is taken out this die casting, has just finished the rheo-diecasting process of a ZL117 aluminium alloy.
Embodiment 7, to utilize resistance melting furnace to produce the degree of superheat be 2024 aluminum alloy melts of 45 ℃ (being that pouring temperature is 683 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 250mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is a copper alloy, the thick zircon flour coating of channel inner surface brushing one deck 0.5mm.2024 aluminum alloy melts that this is overheated 45 ℃ directly pour in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of the stainless steel of Austenitic, when 2024 aluminum alloy melt partial coagulations, can obtain semisolid 2024 aluminium alloy sizes; This spare-crucible is moved in the temperature controller together with wherein semisolid 2024 aluminium alloy sizes, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid 2024 aluminium alloy sizes wherein, cooling velocity is 1 ℃/min, the fraction solid of these semisolid 2024 aluminium alloys is controlled at predetermined scope, promptly 0.2～0.7 maybe these semisolid 2024 aluminium alloy size temperature are controlled at 540～610 ℃, its tissue and Fig. 2 are similar; In the process in this slurry cooling or control temperature field, the edge of these semisolid 2024 aluminium alloy sizes and the temperature difference of heart portion are less than ± 1 ℃; So far, semisolid 2024 aluminium alloy sizes of suitable semi-solid rheological die casting finish with regard to preparation.Pour semisolid 2024 aluminium alloy sizes of 540～610 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures into the pressure chamber of cold house's horizontal plunger die casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this die casting machine is 250 ℃, and the preheat temperature of this die-casting die is 200 ℃; When holding when pressing 5～8 seconds (semisolid 2024 aluminium alloy sizes in this moment this die-casting die solidify fully), but open form is taken out this die casting, has just finished the rheo-diecasting process of one time 2024 aluminium alloy.
Embodiment 8, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 45 ℃ (being that pouring temperature is 660 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 250mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is a graphite.Overheated this ZL101A aluminum alloy melt of 45 ℃ is directly poured in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of the stainless steel of Austenitic, when the partial coagulation of ZL101A aluminum alloy melt, get final product semisolid ZL101A aluminium alloy size; This spare-crucible is moved in the temperature controller together with wherein semisolid ZL101A aluminium alloy size, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid ZL101A aluminium alloy size wherein, cooling velocity is 5 ℃/min, the fraction solid of this semisolid ZL101A aluminium alloy is controlled at predetermined scope, promptly 0.2～0.7 maybe this semisolid ZL101A aluminium alloy size temperature is controlled at 580～600 ℃, its tissue and Fig. 2 are similar; In the process in this slurry cooling or control temperature field, the edge of this semisolid ZL101A aluminium alloy size and the temperature difference of heart portion are less than ± 3 ℃; So far, the semisolid ZL101A aluminium alloy size of suitable semisolid stream rheology forging finishes with regard to preparation.The pressure of the semisolid ZL101A aluminium alloy size of 580～600 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures being poured into a forging machine is indoor, again forging molding; The pressure chamber preheat temperature of this forging machine is 250 ℃, and the preheat temperature of this forging die is 200 ℃; When holding when pressing 5～8 seconds (the semisolid ZL101A aluminium alloy size in this moment this forging die solidifies fully), this forging is taken out in die sinking, has just finished the rheology forging process of a semisolid ZL101A aluminium alloy.
Embodiment 9, SF 1%
6Gas shield under, utilizing resistance melting furnace to produce the degree of superheat is the AZ91D liquid magnesium alloy of 45 ℃ (being that pouring temperature is 640 ℃), the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 250mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is a graphite; In this AZ91D liquid magnesium alloy process of cast, in this tiltedly straight multiple tube passage, be blown into 1% SF
6Protective gas, SF
6The flow of gas is 0.03 liter of a per minute.The AZ91D liquid magnesium alloy that this is overheated 45 ℃ directly pours in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of SiC pottery, when the partial coagulation of AZ91D liquid magnesium alloy, can obtain semisolid AZ91D magnesium alloy slurry; This spare-crucible is moved in the temperature controller together with wherein semisolid AZ91D magnesium alloy slurry, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid AZ91D magnesium alloy slurry wherein, cooling velocity is 5 ℃/min, the fraction solid of this semisolid AZ91D magnesium alloy is controlled at predetermined scope, promptly 0.2～0.7 maybe this semisolid AZ91D magnesium alloy slurry temperature is controlled at 495～558 ℃; In the process in this slurry cooling or control temperature field, the edge of this semisolid AZ91D magnesium alloy slurry and the temperature difference of heart portion are less than ± 3 ℃; So far, the semisolid AZ91D magnesium alloy slurry of suitable semi-solid rheological die casting finishes with regard to preparation.Pour the semisolid AZ91D magnesium alloy slurry of 495～558 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures into the pressure chamber of cold house's horizontal plunger die casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this die casting machine is 300 ℃, and the preheat temperature of this die-casting die is 250 ℃; When holding when pressing 3～6 seconds (the semisolid AZ91D magnesium alloy slurry in this moment this die-casting die solidifies fully), but open form is taken out this die casting, has just finished the rheo-diecasting process of an AZ91D magnesium alloy.
Embodiment 10, SF 1%
6Gas shield under, utilizing resistance melting furnace to produce the degree of superheat is the Mg-2.5wt%Nd-0.7wt%Zr liquid magnesium alloy of 45 ℃ (being that pouring temperature is 685 ℃), the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 degree; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 250mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is no nickel steel; In this Mg-2.5wt%Nd-0.7wt%Zr liquid magnesium alloy process of cast, in this tiltedly straight multiple tube passage, be blown into 1% SF
6Protective gas, SF
6The flow of gas is 0.03 liter of a per minute.The Mg-2.5wt%Nd-0.7wt%Zr liquid magnesium alloy that this is overheated 45 ℃ directly pours in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of no nickel steel matter, when the partial coagulation of Mg-2.5wt%Nd-0.7wt%Zr liquid magnesium alloy, can obtain semisolid Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy slurry; This spare-crucible is moved in the temperature controller together with wherein semisolid Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy slurry, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy slurry wherein, cooling velocity is 5 ℃/min, the fraction solid of this semisolid Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy is controlled at predetermined scope, promptly 0.2～0.7 maybe this semisolid Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy slurry temperature is controlled at 577～622 ℃; In the process in this slurry cooling or control temperature field, the edge of this semisolid Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy slurry and the temperature difference of heart portion are less than ± 3 ℃; So far, the semisolid Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy slurry of suitable semi-solid rheological extrusion casint finishes with regard to preparation.Pour the semisolid Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy slurry of 577～622 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures into the pressure chamber of an extrusion casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this extrusion casting machine is 250 ℃, and the preheat temperature of this extruding casting mold is 200 ℃; When holding when pressing 3～6 seconds (the semisolid Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy slurry in this moment this extruding casting mold solidifies fully), but open form is taken out this squeeze casting, has just finished the rheology extrusion casint process of a Mg-2.5wt%Nd-0.7wt%Zr magnesium alloy.
Embodiment 11, to utilize resistance melting furnace to produce the degree of superheat be 45 ℃ ZA27-2 (pouring temperature is 532 ℃) zinc liquid, and the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 250mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is a graphite.The ZA27-2 zinc liquid that this is overheated 45 ℃ directly pours in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of the stainless steel of Austenitic, when the partial coagulation of ZA27-2 zinc liquid, can obtain semisolid ZA27-2 kirsite slurry; This spare-crucible is moved in the temperature controller together with wherein semisolid ZA27-2 kirsite slurry, this temperature controller is made of the intermediate frequency induction loop of 1000Hz, control its power so that this spare-crucible further cools off or control the temperature field of slurry together with semisolid ZA27-2 kirsite slurry wherein, cooling velocity is 2 ℃/min, the fraction solid of this semisolid ZA27-2 kirsite is controlled at predetermined scope, promptly 0.2～0.7 maybe this semisolid ZA27-2 kirsite slurry temperature is controlled at 408～464 ℃; In the process in this slurry cooling or control temperature field, the edge of this semisolid ZA27-2 kirsite slurry and the temperature difference of heart portion are less than ± 5 ℃; So far, the semisolid ZA27-2 kirsite slurry of suitable semi-solid rheological die casting finishes with regard to preparation.Pour the semisolid ZA27-2 kirsite slurry of 408～464 ℃ of this predetermined fraction solid 0.2～0.7 or predetermined temperatures into the pressure chamber of cold house's horizontal plunger die casting machine, injection mo(u)lding again; The pressure chamber preheat temperature of this die casting machine is 200 ℃, and the preheat temperature of this die-casting die is 250 ℃; When holding when pressing 5～8 seconds (the semisolid ZA27-2 kirsite slurry in this moment this die-casting die solidifies fully), open form is taken out this die casting, has just finished the rheo-diecasting process of a ZA27-2 kirsite.With the degree of superheat is that 45 ℃ ZA8-1 (pouring temperature is 449 ℃) zinc liquid pours in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage flow in the cylindrical spare-crucible of the stainless steel of Austenitic, the semisolid kirsite slurry that has also prepared fraction solid 0.2～0.7, and the success carrying out the rheo-diecasting moulding.
Embodiment 12, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 45 ℃ (being that pouring temperature is 660 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 250mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is a graphite.Overheated this ZL101A aluminum alloy melt of 45 ℃ is directly poured in this tiltedly straight multiple tube passage, and flow out downwards, flow directly into the pressure chamber of die casting machine again, immediately die cast along the inwall of this tiltedly straight multiple tube passage; The pressure chamber preheat temperature of die casting machine is 250 ℃, and the preheat temperature of die-casting die is 200 ℃; After the semi-solid alloy slurry in the die-casting die solidified fully, open form was taken out this die casting, had just finished the rheo-diecasting process one time.
Embodiment 13, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 45 ℃ (being that pouring temperature is 660 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 250mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is a graphite.Overheated this ZL101A aluminum alloy melt of 45 ℃ is directly poured in this tiltedly straight multiple tube passage, and flow out downwards, flow directly into the pressure chamber of extrusion casting machine again, injection mo(u)lding immediately along the inwall of this tiltedly straight multiple tube passage; The pressure chamber preheat temperature of extrusion casting machine is 250 ℃, and the preheat temperature of extruding casting mold is 200 ℃; After the semi-solid alloy slurry in the extruding casting mold solidified fully, open form was taken out this squeeze casting, had just finished rheology extruding casting process.
Embodiment 14, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 45 ℃ (being that pouring temperature is 660 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 250mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is a graphite.Overheated this ZL101A aluminum alloy melt of 45 ℃ is directly poured in this tiltedly straight multiple tube passage, and flow out downwards, flow directly into the pressure chamber of forging machine again, immediately forging molding along the inwall of this tiltedly straight multiple tube passage; The pressure chamber preheat temperature of this forging machine is 250 ℃, and the preheat temperature of this forging die is 200 ℃; After the semi-solid alloy slurry in the forging die solidified fully, open form was taken out this forging, had just finished the rheology forging process one time.
Embodiment 15, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 45 ℃ (being that pouring temperature is 660 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 100mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 200mm, and the internal diameter of tiltedly straight multiple tube passage is 20mm, and the material of this tiltedly straight multiple tube passage is a pottery.The ZL101A aluminum alloy melt that this is overheated 45 ℃ directly pours in this tiltedly straight multiple tube passage, and flows in the spare-crucible of the stainless steel of Austenitic along the inwall of this tiltedly straight multiple tube passage, and the cooling velocity of this ZL101A aluminium alloy melt is 50 ℃/min.When the ZL101A aluminum alloy melt solidifies fully, can obtain semisolid ZL101A aluminum alloy blank, it is organized as shown in Figure 3; This blank can be used for semisolid ZL101A aluminium alloy thixotroping moulding.
Embodiment 16, to utilize resistance melting furnace to produce the degree of superheat be the ZL101A aluminum alloy melt of 45 ℃ (being that pouring temperature is 660 ℃), and the height of the inclined tube section of tiltedly straight multiple tube passage is 150mm, and the angle of inclination pipeline section inwall and ground level vertical line is 30 to spend; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 400mm, and the internal diameter of tiltedly straight multiple tube passage is 90mm, and the material of this tiltedly straight multiple tube passage is a graphite; In this ZL101A aluminum alloy melt process of cast, utilize the cooling jacket cooling of outer edge to be somebody's turn to do tiltedly straight multiple tube passage, and in this tiltedly straight multiple tube passage, be blown into the protection argon gas, the flow of argon gas is 4 liters of per minutes.The ZL101A aluminum alloy melt that this is overheated 45 ℃ directly pours in this tiltedly straight multiple tube passage, and along this tiltedly the inwall of straight multiple tube passage to flow into internal diameter be in the continuous cast mold of 75mm, when ZL101A aluminium alloy base shell is solidified to the thickness of 15mm, speed with per minute 600mm pulls out crystallizer with this continuous casting billet, further water spray cools off and solidifies fully, just can obtain semisolid ZL101A aluminium alloy continuous casting material, its tissue and Fig. 3 are similar; This continuous casting material can be used for semisolid ZL101A aluminium alloy thixotroping moulding.
Claims (9)
1. the preparation method of a semi-solid metal slurry is characterized in that:
A. over-heat metal liquid is poured in the tiltedly straight multiple tube passage of forming by tipping tube and vertical tube, the temperature of over-heat metal liquid is controlled at above 0～200 ℃ of its liquidus temperature in advance, this overheated molten metal flows downward along the inwall of this tiltedly straight multiple tube passage, flow in the spare-crucible, just form semi-solid metal slurry after this metal bath partial coagulation;
B. after cast, move into the semi-solid metal slurry in spare-crucible and this spare-crucible in the temperature controller together, the follow-up cooling of control semi-solid metal slurry or control temperature field, the temperature field that makes this semi-solid metal slurry are evenly and reach predetermined fraction solid or the corresponding slurry temperature of this fraction solid;
C. the semi-solid metal slurry that will be scheduled to fraction solid or the corresponding temperature of this fraction solid is poured the pressure chamber of die casting machine or extrusion casting machine or forging machine, injection mo(u)lding again into; After this semi-solid metal slurry in die-casting die or extruding casting mold or the forging die solidified fully, open form was taken out this die casting or squeeze casting or forging, had just finished rheo-diecasting or rheology extrusion casint or rheology forging process;
Or make this metal bath that flows through this tiltedly straight multiple tube passage no longer flow into spare-crucible, but flow into the pressure chamber of die casting machine or extrusion casting machine or forging machine, injection mo(u)lding again; After the semi-solid metal slurry in die-casting die or extruding casting mold or the forging die solidified fully, open form was taken out this die casting or squeeze casting, had just finished rheo-diecasting or rheology extrusion casint or rheology forging process.
2. according to claims 1 described method, it is characterized in that: after cast, move into the semi-solid metal slurry in spare-crucible and this spare-crucible in the temperature controller together; Be provided with heating element heater and cooling element in this temperature controller, the follow-up cooling or the temperature field of control semi-solid metal slurry make this semi-solid metal slurry reach the temperature of pairing this semi-solid metal slurry of 0.2～0.7 fraction solid that predetermined 0.2～0.7 fraction solid maybe should be predetermined.
3. according to claims 1 or 2 described methods, it is characterized in that: the follow-up cooling velocity of this semi-solid metal slurry is 1～50 ℃/min; Finally make the temperature field of this semi-solid metal slurry even, the temperature difference of the edge of this semi-solid metal slurry and heart portion is ± 1～5 ℃; Follow-up cooling or temperature field that heating element heater in this temperature controller is controlled semi-solid metal slurry by the resistance heat or the electromagnetic induction heat of its generation; Cooling element in this temperature controller passes to air at room temperature or room temperature argon gas or SF
6With air or SF
6With CO
2The mixture of gas, or pass to running water or machine oil cooling liquid, control the follow-up cooling or the temperature field of semi-solid metal slurry with this.
4. according to claims 1 described method, it is characterized in that: the height of the inclination pipeline section of tiltedly straight multiple tube passage is 0～300mm, and the angle of inclination pipeline section inwall and ground level vertical line is 0～60 degree; The height of the vertical pipeline section of tiltedly straight multiple tube passage is 50～1000mm; The internal diameter of tiltedly straight multiple tube passage is 5～100mm; The material of tiltedly straight multiple tube passage is that relative permeability is 0.9～1.1 graphite or pottery or copper alloy or stainless steel or stainless iron; The inwall brushing ceramic lined of oblique sprue, the thickness of this ceramic lined is 0.2～2mm; The inclination angle of inclined tube section passage is the angle of conduit wall and its axis.
5. according to claims 1 described method, it is characterized in that: when cast over-heat metal liquid, the temperature of tiltedly straight multiple tube passage is lower than the solidus temperature of this molten metal; From outside or inner this tiltedly straight multiple tube passage is carried out preheating, this pre-thermal recovery resistance wire mode of heating or electromagnetic induction heating mode or gas mode of heating; From outside or inner this tiltedly straight multiple tube passage is forced cooling, this forces cooling to adopt recirculated water cooling or air-flow cooling or brackish water cooling or machine oil cooling.
6. method according to claim 1 is characterized in that: feed protective gas in this tiltedly straight multiple tube passage, to avoid or to reduce the oxidation of molten metal; This protective gas is argon gas or nitrogen or helium or SF
6With air or SF
6With CO
2The mixture of gas.
7. method according to claim 1, it is characterized in that: the material of the spare-crucible of semi-solid metal slurry is that relative permeability is 0.9～1.1 graphite or pottery or copper alloy or stainless steel or stainless iron, and the shape of this spare-crucible is hydrostatic column or polygon prismatic container.
8. in accordance with the method for claim 1, it is characterized in that: metal bath further solidifies after flowing into spare-crucible fully, has just obtained the blank of this semi-solid-state metal, and blank is as the original blank of semi-solid die casting; Or molten metal flows directly into continuous cast mold after flowing through tiltedly straight multiple tube vias inner walls again, casts out the blank of this semi-solid-state metal continuously, and blank is as the original blank of semi-solid die casting.
9. according to the described method of claim 1 to 8, it is characterized in that: semi-solid-state metal is aluminium alloy or hypoeutectic aluminium alloy or the hypereutectic aluminium alloy that composition is lower than maximum solid solution degree; Or magnesium alloy or hypoeutectic magnesium alloy; Perhaps semi-solid-state metal is the kirsite that hypereutectic kirsite or composition are higher than maximum solid solution degree.
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| CNA2007101761349A CN101130203A (en) | 2007-10-19 | 2007-10-19 | Method for preparing semi-solid metal slurry and rheologic molding |
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| CNA2007101761349A CN101130203A (en) | 2007-10-19 | 2007-10-19 | Method for preparing semi-solid metal slurry and rheologic molding |
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| CNA2007101761349A Pending CN101130203A (en) | 2007-10-19 | 2007-10-19 | Method for preparing semi-solid metal slurry and rheologic molding |
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|---|---|---|---|---|
| CN101921923A (en) * | 2010-09-07 | 2010-12-22 | 南昌大学 | Method for preparing semi-solid slurry of Cu-Ca alloy |
| CN102069158A (en) * | 2011-01-11 | 2011-05-25 | 大连理工大学 | Coating of slope for preparing semi-solid slurry and spraying method thereof |
| CN101700566B (en) * | 2009-11-25 | 2011-09-07 | 北京有色金属研究总院 | Press chamber for rheological die-casting and die-casting method |
| CN102218511A (en) * | 2011-04-29 | 2011-10-19 | 太原科技大学 | Device and method for preparing semisolid alloy slurry |
| CN103252470A (en) * | 2012-02-17 | 2013-08-21 | 加中绿联盟投资顾问(北京)有限公司 | Semisolid rheological forming technique method for forming high-performance three-dimensional variable section high-temperature structural parts |
| CN103381471A (en) * | 2013-07-30 | 2013-11-06 | 上海交通大学 | Preparation method for near-eutectic aluminium-silicon alloy semisolid slurry or blanks |
| CN104001895A (en) * | 2014-05-21 | 2014-08-27 | 上海交通大学 | Semi-solid rheological squeeze casting forming method of flame retardant magnesium alloy |
| CN104759601A (en) * | 2015-03-19 | 2015-07-08 | 昆明理工大学 | Copper alloy rheoforming method |
| CN105499536A (en) * | 2015-12-24 | 2016-04-20 | 北京有色金属研究总院 | Automatic slurry conveying device for rheologic die-casting process and working mode thereof |
| CN108015255A (en) * | 2017-12-08 | 2018-05-11 | 东北大学 | A kind of preparation method of high-speed tool steel |
| CN108435815A (en) * | 2018-04-08 | 2018-08-24 | 宿迁学院 | A kind of continuously extruded building mortion of semisolid and forming method thereof |
| CN110129792A (en) * | 2019-05-30 | 2019-08-16 | 西安交通大学 | Full liquid stirring and Semi-solid Stirring cladding process prepare multiple tube/coating method and device |
| CN111304519A (en) * | 2020-04-16 | 2020-06-19 | 重庆大学 | Preparation method and device of steel blank for semi-solid thixoforming |
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- 2007-10-19 CN CNA2007101761349A patent/CN101130203A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700566B (en) * | 2009-11-25 | 2011-09-07 | 北京有色金属研究总院 | Press chamber for rheological die-casting and die-casting method |
| CN101921923A (en) * | 2010-09-07 | 2010-12-22 | 南昌大学 | Method for preparing semi-solid slurry of Cu-Ca alloy |
| CN102069158A (en) * | 2011-01-11 | 2011-05-25 | 大连理工大学 | Coating of slope for preparing semi-solid slurry and spraying method thereof |
| CN102069158B (en) * | 2011-01-11 | 2013-01-02 | 大连理工大学 | Coating of slope for preparing semi-solid slurry and spraying method thereof |
| CN102218511A (en) * | 2011-04-29 | 2011-10-19 | 太原科技大学 | Device and method for preparing semisolid alloy slurry |
| CN103252470A (en) * | 2012-02-17 | 2013-08-21 | 加中绿联盟投资顾问(北京)有限公司 | Semisolid rheological forming technique method for forming high-performance three-dimensional variable section high-temperature structural parts |
| CN103381471A (en) * | 2013-07-30 | 2013-11-06 | 上海交通大学 | Preparation method for near-eutectic aluminium-silicon alloy semisolid slurry or blanks |
| CN104001895A (en) * | 2014-05-21 | 2014-08-27 | 上海交通大学 | Semi-solid rheological squeeze casting forming method of flame retardant magnesium alloy |
| CN104759601A (en) * | 2015-03-19 | 2015-07-08 | 昆明理工大学 | Copper alloy rheoforming method |
| CN105499536A (en) * | 2015-12-24 | 2016-04-20 | 北京有色金属研究总院 | Automatic slurry conveying device for rheologic die-casting process and working mode thereof |
| CN105499536B (en) * | 2015-12-24 | 2017-05-17 | 北京有色金属研究总院 | Automatic slurry conveying device for rheologic die-casting process and working mode thereof |
| CN108015255A (en) * | 2017-12-08 | 2018-05-11 | 东北大学 | A kind of preparation method of high-speed tool steel |
| CN108015255B (en) * | 2017-12-08 | 2020-04-28 | 东北大学 | Preparation method of high-speed tool steel |
| CN108435815A (en) * | 2018-04-08 | 2018-08-24 | 宿迁学院 | A kind of continuously extruded building mortion of semisolid and forming method thereof |
| CN110129792A (en) * | 2019-05-30 | 2019-08-16 | 西安交通大学 | Full liquid stirring and Semi-solid Stirring cladding process prepare multiple tube/coating method and device |
| CN111304519A (en) * | 2020-04-16 | 2020-06-19 | 重庆大学 | Preparation method and device of steel blank for semi-solid thixoforming |
| CN111304519B (en) * | 2020-04-16 | 2021-09-14 | 重庆大学 | Preparation method and device of steel blank for semi-solid thixoforming |
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