CN102648297A - Control pin and spout system for heating metal casting distribution spout configurations - Google Patents
Control pin and spout system for heating metal casting distribution spout configurations Download PDFInfo
- Publication number
- CN102648297A CN102648297A CN2009801628104A CN200980162810A CN102648297A CN 102648297 A CN102648297 A CN 102648297A CN 2009801628104 A CN2009801628104 A CN 2009801628104A CN 200980162810 A CN200980162810 A CN 200980162810A CN 102648297 A CN102648297 A CN 102648297A
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- Prior art keywords
- control pin
- nozzle
- molten metal
- control
- casting
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4653—Tapholes; Opening or plugging thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/60—Pouring-nozzles with heating or cooling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/18—Stopper-rods therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
Abstract
A control pin system, including an apparatus and method, for use in controlling the flow of molten metal in a molten metal distribution system for casting, with some aspects of the control pin including: a control pin body with an internal cavity and an outer surface, wherein the outer surface is sized and configured to operatively interact with an internal surface of a spout to effectively control the flow of molten metal through a spout aperture; and a heater element within the internal cavity of the control pin body. In other embodiments, the heater may be located within the spout body and transferring heat to the control pin.
Description
The cross reference of related application
The application does not have to advocate to come from the right of priority of any other application.
Technical field
The present invention relates to be used to preheat and/or the control pin and the nozzle system of heating of metal casting distribution nozzle structure, this metal casting distribution nozzle is configured to that non-ferrous metal (for example molten aluminum) is poured into casting mould and has suffered; More specifically, relate to metal flow control pin and/or nozzle structure, its before the casting at metal flow control pin and/or nozzle place, during and/or heat is provided afterwards.
Background technology
Ingot metal, blank and other foundry goods can form through a kind of castingprocesses; In this castingprocesses, used a kind of mould that is vertically oriented; It is positioned at a kind of above the large-scale foundry pit below the ground level of metal casting facility, although the present invention also can be used in the horizontal mold.Vertically the lower member of casting mould is a kind of starting block.When castingprocesses began, starting block was in their the most upwards position and in mould.When molten metal was poured into die hole or chamber and be cooled (usually by water cooling), starting block was fallen with set rate by a kind of hydro-cylinder or other device lentamente.When starting block was lowered, metal or the aluminium that solidifies attitude occurred/appears from the bottom of mould and ingot, and it also can be called as foundry goods in this article.
Although generally speaking the present invention is applicable to the casting of metal; Include but not limited to: aluminium, brass, lead, zinc, magnesium, copper, steel; Or the like; Given instance and the preferred implementation that is disclosed can be directed against aluminium, and thereby term aluminium or molten metal can as one man be used all the time, even if the present invention generally comparatively is applicable to metal.
Although existing multiple mode is used for realizing and disposes a kind of vertical casting and arrange that Fig. 1 illustrates an instance.In Fig. 1, aluminium cast vertically generally to occur in a kind of foundry pit the elevation in fabrication facility floor below horizontal.Being located immediately at below the 101a of foundry pit ground is a kind of open caisson 103, has wherein settled the cylindrical shell 102 that is used for hydro-cylinder.
As shown in Figure 1; A kind of typical vertically parts of the bottom part of aluminum casting equipment; Be depicted as in foundry pit 101 and open caisson 103; Be a kind of hydraulic cylinder cylindrical shell 102, percussion hammer or ram 106, a kind of mounting base housing 105 and a kind of starting block pedestal 114 (being also referred to as a kind of initial head or bottom biock), all these is illustrated as the elevation place below casting facility ground 104.
Mounting base housing 105 is installed to the ground 101a of foundry pit 101, and its below is an open caisson 103.Open caisson 103 is limited its sidewall 103b and ground 103a thereof.
Also show a kind of typical mold table assemblies 110 among Fig. 1; It can be connected by hydro-cylinder 111 at its top as shown in the figure; Thereby hydro-cylinder 111 is promoting mould table oblique arms 110a makes oblique arms 110a pivot around point 112; And raise thus and rotated main cast frame (or sandbox) assembly, as shown in Figure 1.Also exist the mould table carriage, its permission moves to the casting position of foundry pit top with mold table assemblies or moves from this casting position.
Fig. 1 also shows with foundry goods that partly forms or ingot 113 and partly drops to the starting block pedestal 114 in the foundry pit 101.Foundry goods 113 is on starting block pedestal 114; Starting block pedestal 114 can comprise a kind of initial head or bottom biock; Its usually (but not always) be seated against on the starting block pedestal 114, all these are known and thereby need not be illustrated or more describe in detail in state of the art.Although the term starting block is used for object 114, it should be noted that terms bottom block and initial head also are used in the industry to refer to object 114, when a kind of ingot of casting, use bottom biock usually, and when a kind of blank of casting the initial head of use usually.
When hydraulic fluid is introduced in the hydro-cylinder under the situation of enough pressure, percussion hammer 106 and thus starting block 114 be lifted to required elevation original level and be used for castingprocesses, it is in starting block is in mold table assemblies 110 time.
Reduction to starting block 114 can be through any completion in a plurality of means of different or the mechanism's (hydraulic for example, ball screw or cable system).The hydraulic fluid from hydro-cylinder of the metering set rate capable of using of the embodiment shown in the figure, a kind of thus predetermined and controlled rates has reduced percussion hammer 106 and therefore to have reduced starting block (it also can be described as the manual intervention that receives operator or effector).During this process, mould is controllably cooled off helping to carry out to the solidifying of the ingot that occurs or blank, and uses the water cooling means usually and realizes.
Exist numerous molded and foundry engieerings and be applicable in the mould table, and do not need them to put into practice various embodiment of the present invention especially, the people is known because they are ordinary skill.
The upper side of typical mould table is connected to metal distribution system or interaction with it in operation.Typical mould table also is connected to the mould that it is holding in operation.
When using the vertical mould of a kind of continuous casting, molten metal in mould, be cooled and when reduction starting block pedestal the lower end from mould occur continuously.Thereby being intended to solidified fully, the blank, ingot or other structure that occur make it keep its desired shape.Below this, also exist a kind of a kind of mould air chamber between the bottom of the frozen metal that occurs and mould and relevant device.
After specific casting was accomplished, as stated, mould table typically is inclined upwardly and away from the top of foundry pit, and was as shown in Figure 1.
What hope usually is any curing of avoiding molten metal in the distribution system, and extensive work is used to avoid solidify, because it causes blocking and require casting to stop, the stoppage time that therefore this caused undesirable non-ferrous metal to be produced.In specific metal distribution system, nozzle is used to distribute and casting molten metal, and for example aluminium in mould, comprises the mould of producing the foundry goods that is called ingot.Some comprised grooves of these distribution systems, it distributes molten metal in the mould of needs, and all these are normally known and in industry, use.In aspect of the present invention, a series of dam can be used for starting with other retention devices, stops or otherwise controlling to the stream of some or all of moulds.
Control pin is often used in molten metal control molten metal flow when metal distribution system is transported to nozzle, although the control pin also can be used for beginning and stop to flow through nozzle and get into the some parts of mould of molten metal.Since some factors of the long-pending temperature with volume ratio and metal of metallic surface for example, mentioned nozzle area have process not by the situation of abundant control under molten metal be tending towards the solidified zone.A mould and other the mould of the mould table that the curing of a large amount of molten metals at mentioned nozzle area place causes molten metal to flow into unevenly having a plurality of moulds, and can cause nozzle blockage and/or need before it is accomplished, stop casting.
Nozzle pin that heats or control pin are placed in the hole in the nozzle usually, to stop the hole when needed or to clog the hole, usually when beginning of casting and end.For example, when the casting beginning, the control pin is placed in the hole in the nozzle to stop that molten metal flows into mould, up to desired time, for example when all moulds can be supplied to approximately simultaneously.Thereby these control pins move then to change hole dimension and change the metal flow rate on the casting length.When the casting on having the mould table of a plurality of moulds finishes; Usually will have a plurality of nozzles and personnel will be busy with removing control pin in each nozzle usually avoiding molten metal and in nozzle, solidify and to produce for the undesirable problem of ensuing casting, at this moment the nozzle refractory materials typically be in cause metal at the interface solidified temperature.In some molten metal level system, nozzle be plugged up to chute be full of and then control pin be removed and nozzle is opened, control metal flow thus, as shown in Figure 8.
Summary of the invention
Therefore the purpose of embodiments more of the present invention provides a kind of mechanism to avoid molten metal on nozzle surface place or nozzle surface and/or in control nozzle pin surface or the lip-deep curing of control nozzle pin.
Can be because molten metal solidifies freezing the reducing or eliminating that causes by some advantages (although not being requirement) that different embodiments of the present invention or aspect realize.Three steps cause system closedown, the cleaning of iced areas and the restarting or start (this has spent the unnecessary time and has required unnecessary cost) of castingprocesses then.For example can require 25 minutes section cooling time before the operation that control is sold and the nozzle location place can take in some applications, reheat to prepare next casting in other then 45 minutes.Embodiment of the present invention also can be eliminated heating oven, and it is used for temperature maintenance in enough levels in the prior art.
In embodiments of the present invention other possibly advantage be if thermopair is used; The data that provided by thermocouple readings can provide control pin and the health of nozzle or the indication of state; Allow to carry out preventive maintenance, the fault that this should be able to reduce not expect in some cases.
In embodiments more of the present invention other possibly advantage be to save time, and promptly handle the time of nozzle heater.The further advantage of embodiment of the present invention can be to be in the process in the process inherent time can keep better control.The minimizing of the further advantage of embodiment of the present invention is personnel in mould or around mould time of the more above-mentioned or whole issue of the processing of being spent, said problem can be eliminated by the present invention.
Although embodiment of the present invention and aspect relate to above-mentioned purpose, and/or relate to more above-mentioned advantages, those skilled in the art will recognize that to the invention is not restricted to any purpose or any one or a plurality of advantage.
Other purposes of the present invention, feature and advantage will be obvious from formed its a part of specification sheets, claims and appended accompanying drawing.In carrying out the process of the object of the invention, it will be appreciated that: the change that its essential characteristics is vulnerable to design and construct in the layout influences, and in appended accompanying drawing, only illustrate as required a reality and preferred embodiment.
Description of drawings
With reference to attached drawings preferred implementation of the present invention has been described below, in the accompanying drawing:
Fig. 1 is a kind of view elevation view of vertical foundry pit, open caisson and metal casting machine of prior art;
Fig. 2 is the sectional view of the control pin structure of prior art, has showed the solid control pin in the distribution trough nozzle among the figure, and it is in the instance of semi-continuous metal distribution and casting system;
Fig. 3 distribute for the semi-continuous metal of the present invention design and casting system in the sectional view of an embodiment of control pin and nozzle system;
Fig. 4 is the sectional view of a kind of embodiment of control pin shown in Figure 3 and nozzle system, just control pin is wherein pulled down, and makes it can not stop the molten metal nozzle of flowing through;
Fig. 5 is the perspective sectional view of the embodiment of system nozzle pin, and it can utilize like the present invention with conceiving;
Fig. 6 is the sectional view of the embodiment of system nozzle pin, and it can utilize like the present invention with conceiving;
Fig. 6 A is the 6A part of Fig. 6 in the embodiment of system nozzle pin, and it can utilize like the present invention with conceiving;
Fig. 6 B is the 6B part of Fig. 6 in the embodiment of system nozzle pin, and it can utilize like the present invention with conceiving;
Fig. 7 is the sectional view of the embodiment of system nozzle, and it can utilize like the present invention with conceiving, and wherein nozzle comprises that heating unit is to provide heat;
Fig. 7 A is the 7A detail drawing among Fig. 7;
Fig. 8 is the exemplary transverse section front view of an instance in another embodiment of parts, and these parts can be used to put into practice aspect of the present invention, shows heteroid control pin among the figure, and its major control roughly is positioned at or towards the molten metal flow at nozzle top;
Fig. 9 is the exemplary transverse section front view of an instance in another embodiment of parts, and these parts can be used to put into practice aspect of the present invention, shows heteroid control pin among the figure, and its major control roughly is positioned at or the molten metal flow in the middle part of nozzle;
Figure 10 is the exemplary transverse section front view of an instance in another embodiment of parts, and these parts can be used to put into practice aspect of the present invention, shows heteroid control pin among the figure, and its major control roughly is positioned at or towards the molten metal flow of nozzle bottom;
Figure 11 is the exemplary transverse section front view of an instance in another embodiment of parts, and these parts can be used to put into practice aspect of the present invention, shows heteroid control pin among the figure, and its major control roughly is positioned at or the molten metal flow in the middle part of nozzle;
Figure 12 is the exemplary transverse section front view of an instance in another embodiment of the present invention, has showed among the figure that heat is delivered to the nozzle from the control pin; With
Figure 13 is the exemplary transverse section front view of an instance in another embodiment of the present invention, has showed among the figure that heat is delivered to the control pin from nozzle.
Embodiment
Utilization in the present invention many fastening, connect, make and other devices and parts extensively known and use in described the field of the invention, and their exact nature or type are not that technician in this area or the science is used for understanding and using essential to the invention; Therefore, will can aspect elaboration, they be discussed.In addition; The multiple parts that are used for the shown in this article of any application-specific of the present invention or describe can be such by change or change like the expection of the present invention institute, and the practice of the embodiment of any element or application-specific can be by the technician of this area or science perhaps in the art well-known or use; Therefore, each in them will can not discussed aspect elaboration.
As be used in term " ", " a kind of " and " said " in what is claimed is in this article and be used to comply with the claim that exists for a long time and write and put into practice and be not as restriction.Only if specifically illustrate in this article, one of term ", " a kind of " and " said " be not limited to one of these elements, but alternatively the meaning is " at least one ".
Fig. 1 is the front view of vertical foundry pit, open caisson and the metal casting machine of a typical prior art, and its more detailed description sees above.
Fig. 2 is the sectional view of the control pin structure of prior art, has showed the solid control pin in the distribution trough nozzle among the figure, and it is in the instance of semi-continuous metal distribution and casting system.Fig. 2 has showed that molten metal distributes refractory materials 122, chute framework 123, nozzle 127 and the control arm 132 of chute 125, molten metal distribution trough 120, qualification molten metal distribution trough 120.Before the casting beginning, casting die framework 129 be depicted as be positioned at bottom biock 130 above.
Those skilled in the art will recognize that when cooler surface contacts with molten metal, the degree that can make molten metal on material surface, cool off or solidify, this material is generally refractory materials.For example, metal distribution trough 120 shown in Figure 2 is by any the processing in the multiple refractory materials, and its design can be born the high calorie that exists in the molten metal casting system.Although some tubuloses or hollow pins are made up of material different and compsn or form, disclose in the United States Patent(USP) No. of for example announcing on January 23rd, 2,007 7,165,757, the control pin 121 of prior art is processed by refractory materials and real core usually.The lower end 121a of the control pin 121 that shows on the figure inserts in the nozzle 127, to control the metal flow that wherein passes through.
In typical casting facility, the top of many molten metal casting moulds is channel-like configuration, and many control pins 121 wherein insert in the nozzle (like nozzle 127), with the molten metal flow of controlling flow to channel-like configuration.In case when molten metal spreaded all over whole tank systems, hoping usually simultaneously provided molten metal through nozzle to mould, through known distribution system method of flow control, like sluice or other device, just can realize this purpose.Molten metal is flowed through and is controlled pin 121 and nozzle 127 structures then, wherein utilizes and controls pin 121 control molten metal flows.Can see in hole delivery nozzle 127, the nozzle, the control pin 121 and how can stop up on every side from the nozzle 127 and the structure of control pin 121.
Industry technician will recognize that term " control pin " or " pin " are used to discern the parts of mentioning here.For the purposes of the present invention; Will use this term, still, it is not that being used for component limitations is any given configuration, geometrical shape or structure; But utilizing any this class formation control or management flow molten metal flow through nozzle, this belongs within the scope of the present invention.The see after accompanying drawing of face of some instances, but these accompanying drawings will not limit different shapes or the structure that is used to put into practice different embodiment of the present invention and aspect.Under some situation, pin may also be referred to as plug, but many pins can not clog molten metal flow fully, but it is controlled.
Fig. 3 is the sectional view of a kind of embodiment of the control pin 143 that the present invention proposes, and this pin inserts in nozzle 144 and stops molten metal 140 hole of flowing through partially or completely.Fig. 3 has showed that molten metal distributes chute 138, chute framework 123, groove 139 and control arm 132, and wherein, groove 139 is limited the internal surface 147 of refractory materials 122 and molten metal distribution trough 139, and its inside fills molten metal 140.
Fig. 3 further illustrates a kind of instance of controlling a kind of embodiment of pin 143 that the present invention proposes, and this pin inserts in the nozzle 144, and stops molten metal 140 to flow through the hole in the nozzle 144.Line 145 has been showed hot-fluid from control pin 143 flow nozzles 144, and partly flows into the groove district, and it tends to make the outside surface of control pin 143 to remain on suitable temperature, thereby molten metal can not be solidified on the internal surface in the hole in this outside surface or the nozzle 144.To be described in more detail control pin 143 in the accompanying drawing of back.
Fig. 3 has showed further how the heat that provides in the inner chamber of control pin 143 not only adds the outside or the outside surface of thermal control pin 143, but also constructs or be designed to also can heat be delivered to the internal surface of nozzle 144 or nozzle 144.Can reduce molten metal like this in the outside surface of control pin 143 or the trend of solidifying on nozzle 144 internal surfaces.
Hollow control pin structure shown in the embodiment of the present invention shown in Figure 3 can be by any the processing in the multiple different refractory materials; Utilize a kind of material to process; This material for example at least partly is made up of composite ceramic material, and this composite ceramic material comprises the fiber reinforced material that is embedded in the ceramic matrix, like United States Patent(USP) No. 7; That kind that discloses in 165,757.
Any through in as known in the art or the many different institutions that have been found that can realize controlling the vertical movement of pin 143.This type of instance is a system, and this system comprises linear actuators, this actuator and fulcrum associated working.
Any in various mechanism, device or the source of the present invention in conceiving may be used to provide heating; Resistive heating shown in including but not limited to, induction heating, warm air or gas flame heating, the chemical reaction of some type that those skilled in the art will recognize that in addition.
Fig. 4 is the sectional view of a kind of embodiment of control pin shown in Figure 3 and nozzle system, just control pin is wherein pulled down, and makes it can not stop the molten metal nozzle of flowing through.Fig. 4 shows control arm 132 and rotates to promote control pin 143, shown in arrow 150, thereby makes control pin 143 no longer stop the molten metal in the molten metal distribution trough 139 shown in metal flow arrow 152, to be flowed through through the internal passages of nozzle 144.The lower end 143a that shows control pin 143 on the figure be shown the inlet that is positioned at nozzle 144 above.Other parts of shown in Figure 4 all are identical with parts shown in Figure 3, therefore will no longer describe in further detail here.
Fig. 3 and Fig. 4 have further showed how to encapsulate, to fix or retentive control pin 143 with control pin retainer 137; Thereby the vertical movement and the location of fixation hollow or tubulose control pin (like control pin 143), and help in the inner chamber of hollow control pin 143, to provide heating unit (like heater coil) and add Thermal Control Element (like thermopair).Control pin retainer 137 will have inner chamber, as the one of which corresponding to the outside surface and the structure of control pin 143, allowing it, as through mechanical pins or through cementing between it through any being fixed to wherein in the multiple different institutions.
It will be appreciated by those skilled in the art that under normal prior art operational condition, be eager before pin and nozzle cooling generation, prior art control pin to be put into the position of nozzle and begun casting, can not cause the casting delay thereby make to solidify.In some prior art systems, attempt to utilize extraneous gas nozzle heater heated nozzle preventing or to reduce solidifying of molten metal in the mentioned nozzle area, and embodiment of the present invention will allow in the molten metal system, to remove nozzle heater.
Can hope in embodiments more of the present invention or preferably, in case after casting or casting have begun, interrupt heat being provided, because the framework molten metal will provide enough heats at this moment through the control pin; Yet, in other application process, also will it is desirable for and in casting cycle, continue power to be provided to heater coil, there be not undesirable solidifying further to guarantee molten metal.
Fig. 5 is the perspective sectional view of the embodiment of control pin 170 and nozzle system, and it can utilize like the present invention with conceiving.Fig. 5 has showed control pin 170, and it has control pin body 142, hollow or tubular body arranged inside 142, wherein has inner chamber and seals at 142c place, its lower end.Tubular body arranged inside 142 comprises lower body part 142a, midbody part 142b and upper body part 142d.Upper body part 142d has the diameter (though for putting into practice embodiment of the present invention not necessarily) that reduces, and wherein sells retainer 137 (on other accompanying drawing demonstration being arranged) and is operatively coupled to wherein.Also can utilize control pin retainer hole 173 and control to sell 170 interactions or operatively will control pin 170 and be connected (shown in accompanying drawing before) with control pin retainer 137.
Although shown in the embodiment of control pin body comprise inner chamber; Wherein embed or install well heater; But reach term inner chamber used in the claim here and can also comprise that heater coil or heater unit are molded into the embodiment in the control pin body, make its outer edge or surface comprise inner chamber.If plus heater element is positioned at nozzle (as being molded into wherein), with the same use (as following described) of using inner chamber with reference to Fig. 7.
Fig. 5 has further showed control pin inner chamber lining 151, heater coil 143 and the heater coil electroconductive 171 in the control pin inner chamber 145.Fig. 5 also schematic presentation the thermopair 147 in the inner chamber 145 of control pin 170, this thermopair can be used for control and processing intent, with monitoring with control required heat or temperature.Those skilled in the art will recognize that any in the thermopair of number of different types and structure can be used for monitoring and/or controlling heater coil 143 and will control the temperature that pin is heated to.Also can be in nozzle or nozzle internal surface or near utilize thermopair, the thermopair shown in mark among Fig. 3 152.This thermopair can be used to monitor and control when this kind temperature has reached the predetermined or level of hope that is used for the process control purpose.
Though those skilled in the art will recognize that not require that specific plus heater element or coil put into practice the present invention, can use 500 watts, 220 volts to be configured in the control pin 170 required heat is provided.Those skilled in the art will recognize that any in the particular thermal galvanic couple that in control pin 170, also can use number of different types; With temperature and its heat that provides in monitoring and the control control pin 170, all are all within the design of embodiment of the present invention.
Fig. 5 has also schematically showed unit 155, and it can be used to receive data, and through heater coil 143 control electricity inputs, to reach required or predetermined temperature; It can be through being operatively coupled to unit 155 the use monitoring and the control of one or more thermopairs 147.Those skilled in the art will recognize that suitable thermopair unit and/or electric heater unit well known in the art and use, therefore be not described further here, and do not need a particular type or kind to put into practice embodiment of the present invention.
Though there is not practice in the embodiment of the present invention that the specific part or the distance of heat must be provided, heater coil and the heat bottom to the control pin preferably is provided in some embodiments, it for example can be 10 inches of bottoms.In illustrated embodiment, the middle part of control pin 170 can be about 12 inches, and the top can be called cold-zone or top.What can hope is to keep certain minor increment between top and the molten metal of control pin 170, connects the place that exposes because 170 top can be lead or other, and minor increment can be used for protection or protect these parts.
In the embodiment or application of an example; Native system can preheating about one hour of control pin and/or nozzle; So that the temperature in the control pin reaches for example 900 to 1000 degrees centigrade, and the outside surface and the temperature between the nozzle of control pin can be about 450 degrees centigrade.
Fig. 6 is the sectional view of a kind of embodiment of control pin 170, and control pin 170 can use like embodiment of the present invention design ground.Fig. 6 has showed two sections of control pin 170, and promptly section 6A and section 6B see that illustrative is described and more detailed description among Fig. 6.The bottom 142a and the lower end 142c of control pin body 142 have been shown among the figure.Show control pin retainer hole 173 among the figure towards the upper end of control pin 170, and be used for operatively will control pin 170 and be connected to control and sell retainer (Fig. 6 does not show).Fig. 6 has further showed exemplary hot galvanic couple 181; It has thermocouple wire 182; It is operatively coupled on it; And the inner chamber 145 through control pin 170 extends to unit or watch-dog with monitoring temperature and increase or be reduced to the electricity input of electronic coil, and increases or reduce to control the heater temperature (on other accompanying drawing demonstration being arranged) of pin outside surface or nozzle internal surface.
Fig. 6 has further showed electric heater coil 143, and it has heater coil conductor 171, and it is operatively coupled on it, and extends through the inner chamber 145 of control pin 170.Fig. 6 has also showed the inner chamber lining 151 in control pin 170 inner chambers 145.Liner 151 can be by any the processing in multiple differing materials or the composition, do not require a kind of specific the present invention that puts into practice.Yet,, can use stainless steel in the embodiment as shown here.
Fig. 6 A is the 6A part of Fig. 6 in control pin and the nozzle system embodiment, and it can be used for scope of the present invention.The same parts of mentioning is numbered in the same manner, is not described further here.
Fig. 6 B is the 6B part of Fig. 6 in control pin and the nozzle system embodiment, and it can be used for scope of the present invention.The same parts of mentioning is numbered in the same manner, is not described further here.
Fig. 7 is the sectional view of system nozzle embodiment, and it can be used for scope of the present invention, and nozzle wherein comprises that heating unit is to provide heat.Fig. 7 has showed another embodiment of the present invention, and heater coil 208 wherein is cast in the nozzle 205 or embeds wherein.
Fig. 7 has showed distribution trough 200, refractory materials 201, and control pin retainer 204, molten metal 202, nozzle 205, control pin body 207, control pin inner chamber lining 211 and molten metal distribute chute framework 209.Fig. 7 has showed also how control pin retainer 204 utilizes the pin 199 in the hole of inserting control pin 207, shown in mark among Fig. 5 173.Control pin retainer adapter 203 is fixed and is centered on and controls pin retainer 204.
Fig. 7 A is the 7A detail drawing among Fig. 7, has showed control pin 207, nozzle 205, and heater coil 208, arrow 210 has showed that heater coil 208 is patterns of the circular or coiling on every side of control pin 205.
Fig. 8 is the exemplary transverse section front view of an instance in another embodiment of parts, and these parts can be used to put into practice aspect of the present invention, shows heteroid control pin among the figure, and its major control roughly is positioned at or towards the molten metal flow at nozzle top.Fig. 8 has showed refractory materials 201, and molten metal 202, molten metal distribute chute framework 209 and nozzle 251, and it is provided with hole 252, molten metal this hole of flowing through.In Fig. 8, control pin 250 wherein has heating unit 248, is depicted as to be connected to control bearing pin 249 (control bearing pin 249 can be regarded as controlling a part of or integrated with it of pin 250, or separated).Well heater 248 in the control pin 250 should have enough sizes, from well heater 248, fully transfers to the top of nozzle 251 through control pin body to allow heat.
What those skilled in the art will recognize that is that the control pin is used to control molten metal flow, and because operational issue, the control pin can not exclusively clog the hole 252 in the nozzle 251.Can be in the nozzle bore 252 of nozzle 251 or with it corresponding any position implement control; Near the place, nozzle top or top for example as shown in Figure 8; Or the center of nozzle 251 or neighbouring (shown in the instance among Fig. 9 and Figure 11); Or place, the bottom of nozzle 251 or neighbouring (shown in the instance among Figure 10), all are all in the scope of embodiment of the present invention.
Fig. 9 is the exemplary transverse section front view of an instance in another embodiment of parts; These parts can be used to put into practice aspect of the present invention; Show heteroid control pin among the figure, its major control roughly is positioned at or towards the molten metal flow at the middle part of nozzle 251.Fig. 9 has showed refractory materials 201, and molten metal 202, molten metal distribute chute framework 209 and nozzle 251, and it is provided with hole 252, molten metal this hole of flowing through.Fig. 9 has further showed control pin 261, control bearing pin 260 and well heater 262, and the embodiment control of shown control pin 261 is through the molten metal flow of the nozzle bore 252 in the nozzle 251 at nozzle 251 middle parts.
Figure 10 is the exemplary transverse section front view of an instance in another embodiment of parts, and these parts can be used to put into practice aspect of the present invention, shows heteroid control pin among the figure, and its major control roughly is positioned at or towards the molten metal flow of nozzle bottom.Figure 10 has showed refractory materials 201, and molten metal 202, molten metal distribute chute framework 209 and nozzle 251, and it is provided with hole 252, molten metal this hole of flowing through.Figure 10 has further showed control pin 271, controls bearing pin 270 and comprises well heater, although clearly do not mark among Figure 10.The control of the embodiment of shown control pin 271 through place, nozzle 251 bottoms or near nozzle 251 in the molten metal flow of nozzle bore 252.
Figure 11 is the exemplary transverse section front view of an instance in another embodiment of parts, and these parts can be used to put into practice aspect of the present invention, shows heteroid control pin among the figure, and its major control roughly is positioned at or the molten metal flow in the middle part of nozzle.Figure 11 has showed refractory materials 201, and molten metal 202, molten metal distribute chute framework 209 and nozzle 251, and it is provided with hole 252, molten metal this hole of flowing through.Figure 11 has further showed control pin 281, controls bearing pin 280 and comprises well heater, although clearly do not mark among Figure 11.The control of the embodiment of shown control pin 281 through place, nozzle 251 bottoms or near the molten metal flow in hole 252 of nozzle 251.
Figure 12 is the exemplary transverse section front view of an instance in another embodiment of the present invention; Showed among the figure that heat is delivered in the nozzle 194 through control pin body part shown in arrow 291 from the well heater of control pin 290; It is with any or two kinds of conduction or convection type, and this depends on the level and the character of the contact between the internal surface in outside surface and the hole 293 in the nozzle 251 of control pin 290.Figure 12 has also showed refractory materials 201, and molten metal 202 and molten metal distribute chute framework 209.Therefore; With recognize that the present invention promotes nozzle body and/or control pin body any as heat-transfer medium; The heat of the well heater in its inner chamber that nozzle body or control pin body is arbitrary is delivered to another body (nozzle body or control pin body are arbitrary) through this body, thereby realizes that the required of system preheats.
See that from wide significance the present invention will comprise several kinds of embodiments, wherein the body of control pin 290 not only self preheats, but also as heat-transfer pipe or medium, transmitting heat, and also preheats nozzle thus.
Figure 13 is the exemplary transverse section front view of an instance in another embodiment of the present invention, has showed among the figure that heat is delivered to from the well heater 301 of nozzle 300 in the control pin 306, shown in arrow 302.Figure 13 has also showed refractory materials 201, and molten metal 202 and molten metal distribute chute framework 209.
See that from wide significance the present invention will comprise several kinds of embodiments, wherein the main body of nozzle 300 not only self preheats with plus heater element 301, but also as heat-transfer pipe or medium, transmitting heat, and also preheats control pin 306 thus.
Those skilled in the art will recognize that, can use a lot of embodiment of the present invention, the variant of element and parts, they are all within the scope of the invention.
For example; An embodiment of the invention disclose and a kind ofly have been used to control the control pin of molten metal flow at the molten metal distribution system that is used for casting, wherein; Said control pin comprises: control pin body; It has inner chamber and outside surface, and being dimensioned to and being configured to operatively of wherein said outside surface interacts with the internal surface of nozzle, thereby clogs or control nozzle bore effectively; And the plus heater element in the inner chamber of said control pin body.In its further embodiment, the inner chamber that can have thermopair to be arranged in said control pin body is sold intrinsic temperature information to provide from said control.The control pin that this paper relates to also can be constructed in embodiments more of the present invention further, and wherein said plus heater element is molded in the said control pin body; Perhaps wherein said control pin body part is at least processed by stratified composite ceramic material, and this material comprises the multilayer fortifying fibre that comprises in the castable ceramic matrix.
In yet another embodiment of the present invention; Provide being used for managing and got into the system that preheats that the combination of control pin and nozzle of the molten metal flow of casting mould uses from the molten metal distribution system; Wherein preheat system and comprise the control pin, it has control pin body and intrinsic inner chamber is sold in said control; Nozzle, it has the inner chamber in nozzle body and the said nozzle body; Well heater in one of inner chamber in the said control pin body or the inner chamber in the said nozzle body; Wherein heat is delivered in control pin body or the nozzle body another from well heater through one control pin body or the nozzle body, thus preheat control pin body and nozzle body the two.
In another embodiment of the invention (method embodiment); Provide a kind of preheating to be used for controlling through the molten metal distribution system and the method for control pin that gets into the molten metal flow of casting mould; Wherein said method may further comprise the steps: nozzle is provided; It has nozzle bore, and said nozzle bore is configured to promote to get into the molten metal flow the casting mould from the molten metal distribution system; Control pin body is provided, and it has inner chamber and outside surface, and being dimensioned to and being configured to of wherein said outside surface operatively clogs nozzle bore when inserting wherein; Well heater in the inner chamber of said control pin body is provided; Said control pin is inserted in the nozzle to prevent that molten metal flow is through nozzle; The temperature that increases the well heater in the said control pin is to preheat said control pin before metal being incorporated into nozzle; And thereby said control pin regain allowed the molten metal nozzle of flowing through from nozzle.In the further embodiment in front, method can comprise also that the temperature of further increase well heater makes it be enough to preheat extraly nozzle.
Claims (8)
1. one kind is used to control the control pin of molten metal flow at the molten metal distribution system that is used for casting, and said control pin comprises:
Control pin body, it has inner chamber and outside surface, and being dimensioned to and being configured to operatively of wherein said outside surface interacts with the internal surface of nozzle, thus control is through the molten metal flow of nozzle bore effectively; And
Plus heater element in the inner chamber of said control pin body.
2. control pin according to claim 1 further, is characterized in that, thermopair is arranged in the inner chamber of said control pin body and sells intrinsic temperature information to provide from said control.
3. control pin according to claim 1 further, is characterized in that, said plus heater element is molded in the said control pin body.
4. control pin according to claim 1 further, is characterized in that, said control pin body part is at least processed by stratified composite ceramic material, and this material comprises the multilayer fortifying fibre that comprises in the castable ceramic matrix.
5. one kind gets into the heating control system that the combination of control pin and nozzle of the molten metal flow of casting mould is used being used for managing from the molten metal distribution system, preheats system and comprises:
The control pin, it has control pin body;
Nozzle, it has nozzle body;
Well heater in one of said control pin body or said nozzle body;
Wherein heat is delivered in control pin body or the nozzle body another from well heater through one control pin body or the nozzle body, thus preheat control pin body and nozzle body the two.
6. a heating is used for controlling through the molten metal distribution system and the method for control pin that gets into the molten metal flow of casting mould, said method comprising the steps of:
Nozzle is provided, and it has nozzle bore, and said nozzle bore is configured to promote to get into the molten metal flow the casting mould from the molten metal distribution system;
Control pin body is provided, and it has inner chamber and outside surface, wherein said outside surface be dimensioned to and be configured to the opening between control nozzle bore and control are sold when the control pin inserts wherein;
Well heater in the inner chamber of said control pin body is provided;
The temperature that increases the well heater in the said control pin is to preheat said control pin before metal being introduced nozzle; And
Said control pin is placed in the nozzle with the molten metal flow of control through nozzle.
7. the method that adds the thermal control pin according to claim 6 is characterized in that, thereby comprises further said control pin regain is allowed the molten metal nozzle of flowing through from nozzle.
8. the method that adds the thermal control pin according to claim 6 is characterized in that, the temperature that further increases well heater makes it be enough to preheat extraly nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773846.8A CN106334788A (en) | 2009-10-08 | 2009-10-08 | Control pin and nozzle system for heated metal casting and distribution nozzle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2009/005556 WO2011043759A1 (en) | 2009-10-08 | 2009-10-08 | Control pin and spout system for heating metal casting distribution spout configurations |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610773846.8A Division CN106334788A (en) | 2009-10-08 | 2009-10-08 | Control pin and nozzle system for heated metal casting and distribution nozzle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102648297A true CN102648297A (en) | 2012-08-22 |
Family
ID=43857025
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801628104A Pending CN102648297A (en) | 2009-10-08 | 2009-10-08 | Control pin and spout system for heating metal casting distribution spout configurations |
| CN201610773846.8A Pending CN106334788A (en) | 2009-10-08 | 2009-10-08 | Control pin and nozzle system for heated metal casting and distribution nozzle structure |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610773846.8A Pending CN106334788A (en) | 2009-10-08 | 2009-10-08 | Control pin and nozzle system for heated metal casting and distribution nozzle structure |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP2486156A4 (en) |
| JP (1) | JP5936543B2 (en) |
| KR (1) | KR20120086305A (en) |
| CN (2) | CN102648297A (en) |
| AU (1) | AU2009353658B2 (en) |
| BR (1) | BR112012007695A2 (en) |
| CA (1) | CA2775694A1 (en) |
| RU (1) | RU2549817C2 (en) |
| WO (1) | WO2011043759A1 (en) |
| ZA (1) | ZA201202442B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475716A (en) * | 2014-12-15 | 2015-04-01 | 西南铝业（集团）有限责任公司 | Distribution flow groove |
| CN107530770A (en) * | 2015-03-26 | 2018-01-02 | 皮罗泰克高温工业产品有限公司 | The control pin of heating |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732071A (en) * | 2019-01-24 | 2019-05-10 | 北京利尔高温材料股份有限公司 | A kind of stopper with anti-crusting heat insulation function |
| CN111940716B (en) * | 2020-08-27 | 2022-03-08 | 山东钢铁股份有限公司 | Method for preventing rare earth steel continuous casting nozzle from being blocked |
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| US3596804A (en) * | 1969-03-07 | 1971-08-03 | Westinghouse Electric Corp | Pouring spout for continuous casting of molten metals |
| JPS4839324A (en) * | 1971-09-27 | 1973-06-09 | ||
| SU933205A1 (en) * | 1980-06-24 | 1982-06-07 | Могилевское Отделение Физико-Технического Института Ан Бсср | Sleeve for feeding metal into continuous casting mould |
| JPS5736060A (en) * | 1980-08-13 | 1982-02-26 | Toyota Motor Corp | Gravity casting device |
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| DE3842690C2 (en) * | 1988-12-19 | 1998-04-30 | Didier Werke Ag | Refractory connection and induction coil therefor |
| US5106291A (en) * | 1991-05-22 | 1992-04-21 | Gellert Jobst U | Injection molding apparatus with heated valve member |
| JP3087932B2 (en) * | 1993-03-15 | 2000-09-18 | 宇部興産株式会社 | Gutter type hot water supply device |
| JP3085494B2 (en) * | 1993-03-19 | 2000-09-11 | 宇部興産株式会社 | Gutter type hot water supply device |
| US5316071A (en) * | 1993-05-13 | 1994-05-31 | Wagstaff Inc. | Molten metal distribution launder |
| JPH07116791A (en) * | 1993-10-25 | 1995-05-09 | Akechi Ceramics Kk | Tundish stopper for continuous casting |
| US5531245A (en) * | 1994-05-17 | 1996-07-02 | Reliance Electric Industrial Company | High temperature heated valve |
| DE19603607A1 (en) * | 1995-10-05 | 1997-04-10 | Didier Werke Ag | Multi-region inductor unit |
| DE10035097A1 (en) * | 2000-07-17 | 2002-02-07 | Didier Werke Ag | Immersion heating element used for changing, maintaining and/or comparing the bath temperature of a molten metal comprises an inner inductor arranged in a refractory casing having a flat cross-section and closed on its base |
| GB2407287A (en) | 2003-10-24 | 2005-04-27 | Pyrotek Engineering Materials | Stopper rod made from reinforced ceramic |
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| RU2291759C1 (en) * | 2005-06-17 | 2007-01-20 | Оао "Завод Подшипников Скольжения" | Distributing apparatus for casting thin ingots of antifriction alloys |
| US7661457B2 (en) * | 2006-08-18 | 2010-02-16 | Wagstaff, Inc. | Gas flow control system for molten metal molds with permeable perimeter walls |
-
2009
- 2009-10-08 AU AU2009353658A patent/AU2009353658B2/en active Active
- 2009-10-08 EP EP09850303.0A patent/EP2486156A4/en not_active Withdrawn
- 2009-10-08 KR KR1020127011765A patent/KR20120086305A/en not_active Application Discontinuation
- 2009-10-08 RU RU2012118633/02A patent/RU2549817C2/en active
- 2009-10-08 CN CN2009801628104A patent/CN102648297A/en active Pending
- 2009-10-08 WO PCT/US2009/005556 patent/WO2011043759A1/en active Application Filing
- 2009-10-08 JP JP2012533122A patent/JP5936543B2/en active Active
- 2009-10-08 CN CN201610773846.8A patent/CN106334788A/en active Pending
- 2009-10-08 CA CA2775694A patent/CA2775694A1/en not_active Abandoned
- 2009-10-08 BR BR112012007695A patent/BR112012007695A2/en not_active Application Discontinuation
-
2012
- 2012-04-03 ZA ZA2012/02442A patent/ZA201202442B/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475716A (en) * | 2014-12-15 | 2015-04-01 | 西南铝业（集团）有限责任公司 | Distribution flow groove |
| CN107530770A (en) * | 2015-03-26 | 2018-01-02 | 皮罗泰克高温工业产品有限公司 | The control pin of heating |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011043759A1 (en) | 2011-04-14 |
| AU2009353658B2 (en) | 2016-05-26 |
| BR112012007695A2 (en) | 2016-08-23 |
| JP5936543B2 (en) | 2016-06-22 |
| KR20120086305A (en) | 2012-08-02 |
| AU2009353658A1 (en) | 2012-04-19 |
| EP2486156A1 (en) | 2012-08-15 |
| JP2013507255A (en) | 2013-03-04 |
| ZA201202442B (en) | 2012-12-27 |
| RU2012118633A (en) | 2013-11-20 |
| RU2549817C2 (en) | 2015-04-27 |
| CN106334788A (en) | 2017-01-18 |
| EP2486156A4 (en) | 2014-07-23 |
| CA2775694A1 (en) | 2011-04-14 |
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Application publication date: 20120822 |